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llvm / llvm-project / 520f641877cd58d9cc911de36284b458a7be13fb / . / clang / unittests / ASTMatchers / ASTMatchersNarrowingTest.cpp
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// unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp - AST matcher unit tests//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "ASTMatchersTest.h"
#include "clang/AST/PrettyPrinter.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/ASTMatchers/ASTMatchers.h"
#include "clang/Tooling/Tooling.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Support/Host.h"
#include "gtest/gtest.h"
namespace clang {
namespace ast_matchers {
TEST_P(ASTMatchersTest, IsExpandedFromMacro_MatchesInFile) {
StringRef input = R"cc(
#define MY_MACRO(a) (4 + (a))
void Test() { MY_MACRO(4); }
)cc";
EXPECT_TRUE(matches(input, binaryOperator(isExpandedFromMacro("MY_MACRO"))));
}
TEST_P(ASTMatchersTest, IsExpandedFromMacro_MatchesNested) {
StringRef input = R"cc(
#define MY_MACRO(a) (4 + (a))
#define WRAPPER(a) MY_MACRO(a)
void Test() { WRAPPER(4); }
)cc";
EXPECT_TRUE(matches(input, binaryOperator(isExpandedFromMacro("MY_MACRO"))));
}
TEST_P(ASTMatchersTest, IsExpandedFromMacro_MatchesIntermediate) {
StringRef input = R"cc(
#define IMPL(a) (4 + (a))
#define MY_MACRO(a) IMPL(a)
#define WRAPPER(a) MY_MACRO(a)
void Test() { WRAPPER(4); }
)cc";
EXPECT_TRUE(matches(input, binaryOperator(isExpandedFromMacro("MY_MACRO"))));
}
TEST_P(ASTMatchersTest, IsExpandedFromMacro_MatchesTransitive) {
StringRef input = R"cc(
#define MY_MACRO(a) (4 + (a))
#define WRAPPER(a) MY_MACRO(a)
void Test() { WRAPPER(4); }
)cc";
EXPECT_TRUE(matches(input, binaryOperator(isExpandedFromMacro("WRAPPER"))));
}
TEST_P(ASTMatchersTest, IsExpandedFromMacro_MatchesArgument) {
StringRef input = R"cc(
#define MY_MACRO(a) (4 + (a))
void Test() {
int x = 5;
MY_MACRO(x);
}
)cc";
EXPECT_TRUE(matches(input, declRefExpr(isExpandedFromMacro("MY_MACRO"))));
}
// Like IsExpandedFromMacro_MatchesArgument, but the argument is itself a
// macro.
TEST_P(ASTMatchersTest, IsExpandedFromMacro_MatchesArgumentMacroExpansion) {
StringRef input = R"cc(
#define MY_MACRO(a) (4 + (a))
#define IDENTITY(a) (a)
void Test() {
IDENTITY(MY_MACRO(2));
}
)cc";
EXPECT_TRUE(matches(input, binaryOperator(isExpandedFromMacro("IDENTITY"))));
}
TEST_P(ASTMatchersTest, IsExpandedFromMacro_MatchesWhenInArgument) {
StringRef input = R"cc(
#define MY_MACRO(a) (4 + (a))
#define IDENTITY(a) (a)
void Test() {
IDENTITY(MY_MACRO(2));
}
)cc";
EXPECT_TRUE(matches(input, binaryOperator(isExpandedFromMacro("MY_MACRO"))));
}
TEST_P(ASTMatchersTest, IsExpandedFromMacro_MatchesObjectMacro) {
StringRef input = R"cc(
#define PLUS (2 + 2)
void Test() {
PLUS;
}
)cc";
EXPECT_TRUE(matches(input, binaryOperator(isExpandedFromMacro("PLUS"))));
}
TEST(IsExpandedFromMacro, MatchesFromCommandLine) {
StringRef input = R"cc(
void Test() { FOUR_PLUS_FOUR; }
)cc";
EXPECT_TRUE(matchesConditionally(
input, binaryOperator(isExpandedFromMacro("FOUR_PLUS_FOUR")), true,
{"-std=c++11", "-DFOUR_PLUS_FOUR=4+4"}));
}
TEST_P(ASTMatchersTest, IsExpandedFromMacro_NotMatchesBeginOnly) {
StringRef input = R"cc(
#define ONE_PLUS 1+
void Test() { ONE_PLUS 4; }
)cc";
EXPECT_TRUE(
notMatches(input, binaryOperator(isExpandedFromMacro("ONE_PLUS"))));
}
TEST_P(ASTMatchersTest, IsExpandedFromMacro_NotMatchesEndOnly) {
StringRef input = R"cc(
#define PLUS_ONE +1
void Test() { 4 PLUS_ONE; }
)cc";
EXPECT_TRUE(
notMatches(input, binaryOperator(isExpandedFromMacro("PLUS_ONE"))));
}
TEST_P(ASTMatchersTest, IsExpandedFromMacro_NotMatchesDifferentMacro) {
StringRef input = R"cc(
#define MY_MACRO(a) (4 + (a))
void Test() { MY_MACRO(4); }
)cc";
EXPECT_TRUE(notMatches(input, binaryOperator(isExpandedFromMacro("OTHER"))));
}
TEST_P(ASTMatchersTest, IsExpandedFromMacro_NotMatchesDifferentInstances) {
StringRef input = R"cc(
#define FOUR 4
void Test() { FOUR + FOUR; }
)cc";
EXPECT_TRUE(notMatches(input, binaryOperator(isExpandedFromMacro("FOUR"))));
}
TEST(IsExpandedFromMacro, IsExpandedFromMacro_MatchesDecls) {
StringRef input = R"cc(
#define MY_MACRO(a) int i = a;
void Test() { MY_MACRO(4); }
)cc";
EXPECT_TRUE(matches(input, varDecl(isExpandedFromMacro("MY_MACRO"))));
}
TEST(IsExpandedFromMacro, IsExpandedFromMacro_MatchesTypelocs) {
StringRef input = R"cc(
#define MY_TYPE int
void Test() { MY_TYPE i = 4; }
)cc";
EXPECT_TRUE(matches(input, typeLoc(isExpandedFromMacro("MY_TYPE"))));
}
TEST_P(ASTMatchersTest, AllOf) {
const char Program[] = "struct T { };"
"int f(int, struct T*, int, int);"
"void g(int x) { struct T t; f(x, &t, 3, 4); }";
EXPECT_TRUE(matches(
Program, callExpr(allOf(callee(functionDecl(hasName("f"))),
hasArgument(0, declRefExpr(to(varDecl())))))));
EXPECT_TRUE(matches(
Program,
callExpr(
allOf(callee(functionDecl(hasName("f"))),
hasArgument(0, declRefExpr(to(varDecl()))),
hasArgument(1, hasType(pointsTo(recordDecl(hasName("T")))))))));
EXPECT_TRUE(matches(
Program, callExpr(allOf(
callee(functionDecl(hasName("f"))),
hasArgument(0, declRefExpr(to(varDecl()))),
hasArgument(1, hasType(pointsTo(recordDecl(hasName("T"))))),
hasArgument(2, integerLiteral(equals(3)))))));
EXPECT_TRUE(matches(
Program, callExpr(allOf(
callee(functionDecl(hasName("f"))),
hasArgument(0, declRefExpr(to(varDecl()))),
hasArgument(1, hasType(pointsTo(recordDecl(hasName("T"))))),
hasArgument(2, integerLiteral(equals(3))),
hasArgument(3, integerLiteral(equals(4)))))));
}
TEST_P(ASTMatchersTest, Has) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `has()` that does not depend on C++.
return;
}
DeclarationMatcher HasClassX = recordDecl(has(recordDecl(hasName("X"))));
EXPECT_TRUE(matches("class Y { class X {}; };", HasClassX));
EXPECT_TRUE(matches("class X {};", HasClassX));
DeclarationMatcher YHasClassX =
recordDecl(hasName("Y"), has(recordDecl(hasName("X"))));
EXPECT_TRUE(matches("class Y { class X {}; };", YHasClassX));
EXPECT_TRUE(notMatches("class X {};", YHasClassX));
EXPECT_TRUE(notMatches("class Y { class Z { class X {}; }; };", YHasClassX));
}
TEST_P(ASTMatchersTest, Has_RecursiveAllOf) {
if (!GetParam().isCXX()) {
return;
}
DeclarationMatcher Recursive =
recordDecl(has(recordDecl(has(recordDecl(hasName("X"))),
has(recordDecl(hasName("Y"))), hasName("Z"))),
has(recordDecl(has(recordDecl(hasName("A"))),
has(recordDecl(hasName("B"))), hasName("C"))),
hasName("F"));
EXPECT_TRUE(matches("class F {"
" class Z {"
" class X {};"
" class Y {};"
" };"
" class C {"
" class A {};"
" class B {};"
" };"
"};",
Recursive));
EXPECT_TRUE(matches("class F {"
" class Z {"
" class A {};"
" class X {};"
" class Y {};"
" };"
" class C {"
" class X {};"
" class A {};"
" class B {};"
" };"
"};",
Recursive));
EXPECT_TRUE(matches("class O1 {"
" class O2 {"
" class F {"
" class Z {"
" class A {};"
" class X {};"
" class Y {};"
" };"
" class C {"
" class X {};"
" class A {};"
" class B {};"
" };"
" };"
" };"
"};",
Recursive));
}
TEST_P(ASTMatchersTest, Has_RecursiveAnyOf) {
if (!GetParam().isCXX()) {
return;
}
DeclarationMatcher Recursive = recordDecl(
anyOf(has(recordDecl(anyOf(has(recordDecl(hasName("X"))),
has(recordDecl(hasName("Y"))), hasName("Z")))),
has(recordDecl(anyOf(hasName("C"), has(recordDecl(hasName("A"))),
has(recordDecl(hasName("B")))))),
hasName("F")));
EXPECT_TRUE(matches("class F {};", Recursive));
EXPECT_TRUE(matches("class Z {};", Recursive));
EXPECT_TRUE(matches("class C {};", Recursive));
EXPECT_TRUE(matches("class M { class N { class X {}; }; };", Recursive));
EXPECT_TRUE(matches("class M { class N { class B {}; }; };", Recursive));
EXPECT_TRUE(matches("class O1 { class O2 {"
" class M { class N { class B {}; }; }; "
"}; };",
Recursive));
}
TEST_P(ASTMatchersTest, Unless) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `unless()` that does not depend on C++.
return;
}
DeclarationMatcher NotClassX =
cxxRecordDecl(isDerivedFrom("Y"), unless(hasName("X")));
EXPECT_TRUE(notMatches("", NotClassX));
EXPECT_TRUE(notMatches("class Y {};", NotClassX));
EXPECT_TRUE(matches("class Y {}; class Z : public Y {};", NotClassX));
EXPECT_TRUE(notMatches("class Y {}; class X : public Y {};", NotClassX));
EXPECT_TRUE(
notMatches("class Y {}; class Z {}; class X : public Y {};", NotClassX));
DeclarationMatcher ClassXHasNotClassY =
recordDecl(hasName("X"), has(recordDecl(hasName("Z"))),
unless(has(recordDecl(hasName("Y")))));
EXPECT_TRUE(matches("class X { class Z {}; };", ClassXHasNotClassY));
EXPECT_TRUE(
notMatches("class X { class Y {}; class Z {}; };", ClassXHasNotClassY));
DeclarationMatcher NamedNotRecord =
namedDecl(hasName("Foo"), unless(recordDecl()));
EXPECT_TRUE(matches("void Foo(){}", NamedNotRecord));
EXPECT_TRUE(notMatches("struct Foo {};", NamedNotRecord));
}
TEST_P(ASTMatchersTest, HasCastKind) {
EXPECT_TRUE(
matches("char *p = 0;",
traverse(TK_AsIs,
varDecl(has(castExpr(hasCastKind(CK_NullToPointer)))))));
EXPECT_TRUE(notMatches(
"char *p = 0;",
traverse(TK_AsIs,
varDecl(has(castExpr(hasCastKind(CK_DerivedToBase)))))));
EXPECT_TRUE(matches("char *p = 0;",
traverse(TK_AsIs, varDecl(has(implicitCastExpr(
hasCastKind(CK_NullToPointer)))))));
}
TEST_P(ASTMatchersTest, HasDescendant) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `hasDescendant()` that does not depend on C++.
return;
}
DeclarationMatcher ZDescendantClassX =
recordDecl(hasDescendant(recordDecl(hasName("X"))), hasName("Z"));
EXPECT_TRUE(matches("class Z { class X {}; };", ZDescendantClassX));
EXPECT_TRUE(
matches("class Z { class Y { class X {}; }; };", ZDescendantClassX));
EXPECT_TRUE(matches("class Z { class A { class Y { class X {}; }; }; };",
ZDescendantClassX));
EXPECT_TRUE(
matches("class Z { class A { class B { class Y { class X {}; }; }; }; };",
ZDescendantClassX));
EXPECT_TRUE(notMatches("class Z {};", ZDescendantClassX));
DeclarationMatcher ZDescendantClassXHasClassY = recordDecl(
hasDescendant(recordDecl(has(recordDecl(hasName("Y"))), hasName("X"))),
hasName("Z"));
EXPECT_TRUE(matches("class Z { class X { class Y {}; }; };",
ZDescendantClassXHasClassY));
EXPECT_TRUE(
matches("class Z { class A { class B { class X { class Y {}; }; }; }; };",
ZDescendantClassXHasClassY));
EXPECT_TRUE(notMatches("class Z {"
" class A {"
" class B {"
" class X {"
" class C {"
" class Y {};"
" };"
" };"
" }; "
" };"
"};",
ZDescendantClassXHasClassY));
DeclarationMatcher ZDescendantClassXDescendantClassY =
recordDecl(hasDescendant(recordDecl(
hasDescendant(recordDecl(hasName("Y"))), hasName("X"))),
hasName("Z"));
EXPECT_TRUE(
matches("class Z { class A { class X { class B { class Y {}; }; }; }; };",
ZDescendantClassXDescendantClassY));
EXPECT_TRUE(matches("class Z {"
" class A {"
" class X {"
" class B {"
" class Y {};"
" };"
" class Y {};"
" };"
" };"
"};",
ZDescendantClassXDescendantClassY));
}
TEST_P(ASTMatchersTest, HasDescendant_Memoization) {
DeclarationMatcher CannotMemoize =
decl(hasDescendant(typeLoc().bind("x")), has(decl()));
EXPECT_TRUE(matches("void f() { int i; }", CannotMemoize));
}
TEST_P(ASTMatchersTest, HasDescendant_MemoizationUsesRestrictKind) {
auto Name = hasName("i");
auto VD = internal::Matcher<VarDecl>(Name).dynCastTo<Decl>();
auto RD = internal::Matcher<RecordDecl>(Name).dynCastTo<Decl>();
// Matching VD first should not make a cache hit for RD.
EXPECT_TRUE(notMatches("void f() { int i; }",
decl(hasDescendant(VD), hasDescendant(RD))));
EXPECT_TRUE(notMatches("void f() { int i; }",
decl(hasDescendant(RD), hasDescendant(VD))));
// Not matching RD first should not make a cache hit for VD either.
EXPECT_TRUE(matches("void f() { int i; }",
decl(anyOf(hasDescendant(RD), hasDescendant(VD)))));
}
TEST_P(ASTMatchersTest, HasAncestor_Memoization) {
if (!GetParam().isCXX()) {
return;
}
// This triggers an hasAncestor with a TemplateArgument in the bound nodes.
// That node can't be memoized so we have to check for it before trying to put
// it on the cache.
DeclarationMatcher CannotMemoize = classTemplateSpecializationDecl(
hasAnyTemplateArgument(templateArgument().bind("targ")),
forEach(fieldDecl(hasAncestor(forStmt()))));
EXPECT_TRUE(notMatches("template <typename T> struct S;"
"template <> struct S<int>{ int i; int j; };",
CannotMemoize));
}
TEST_P(ASTMatchersTest, HasAttr) {
EXPECT_TRUE(matches("struct __attribute__((warn_unused)) X {};",
decl(hasAttr(clang::attr::WarnUnused))));
EXPECT_FALSE(matches("struct X {};", decl(hasAttr(clang::attr::WarnUnused))));
}
TEST_P(ASTMatchersTest, AnyOf) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `anyOf()` that does not depend on C++.
return;
}
DeclarationMatcher YOrZDerivedFromX = cxxRecordDecl(
anyOf(hasName("Y"), allOf(isDerivedFrom("X"), hasName("Z"))));
EXPECT_TRUE(matches("class X {}; class Z : public X {};", YOrZDerivedFromX));
EXPECT_TRUE(matches("class Y {};", YOrZDerivedFromX));
EXPECT_TRUE(
notMatches("class X {}; class W : public X {};", YOrZDerivedFromX));
EXPECT_TRUE(notMatches("class Z {};", YOrZDerivedFromX));
DeclarationMatcher XOrYOrZOrU =
recordDecl(anyOf(hasName("X"), hasName("Y"), hasName("Z"), hasName("U")));
EXPECT_TRUE(matches("class X {};", XOrYOrZOrU));
EXPECT_TRUE(notMatches("class V {};", XOrYOrZOrU));
DeclarationMatcher XOrYOrZOrUOrV = recordDecl(anyOf(
hasName("X"), hasName("Y"), hasName("Z"), hasName("U"), hasName("V")));
EXPECT_TRUE(matches("class X {};", XOrYOrZOrUOrV));
EXPECT_TRUE(matches("class Y {};", XOrYOrZOrUOrV));
EXPECT_TRUE(matches("class Z {};", XOrYOrZOrUOrV));
EXPECT_TRUE(matches("class U {};", XOrYOrZOrUOrV));
EXPECT_TRUE(matches("class V {};", XOrYOrZOrUOrV));
EXPECT_TRUE(notMatches("class A {};", XOrYOrZOrUOrV));
StatementMatcher MixedTypes = stmt(anyOf(ifStmt(), binaryOperator()));
EXPECT_TRUE(matches("int F() { return 1 + 2; }", MixedTypes));
EXPECT_TRUE(matches("int F() { if (true) return 1; }", MixedTypes));
EXPECT_TRUE(notMatches("int F() { return 1; }", MixedTypes));
EXPECT_TRUE(
matches("void f() try { } catch (int) { } catch (...) { }",
cxxCatchStmt(anyOf(hasDescendant(varDecl()), isCatchAll()))));
}
TEST_P(ASTMatchersTest, MapAnyOf) {
if (!GetParam().isCXX()) {
return;
}
if (GetParam().hasDelayedTemplateParsing()) {
return;
}
StringRef Code = R"cpp(
void F() {
if (true) {}
for ( ; false; ) {}
}
)cpp";
auto trueExpr = cxxBoolLiteral(equals(true));
auto falseExpr = cxxBoolLiteral(equals(false));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(ifStmt, forStmt).with(hasCondition(trueExpr)))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(ifStmt, forStmt).with(hasCondition(falseExpr)))));
EXPECT_TRUE(
matches(Code, cxxBoolLiteral(equals(true),
hasAncestor(mapAnyOf(ifStmt, forStmt)))));
EXPECT_TRUE(
matches(Code, cxxBoolLiteral(equals(false),
hasAncestor(mapAnyOf(ifStmt, forStmt)))));
EXPECT_TRUE(
notMatches(Code, floatLiteral(hasAncestor(mapAnyOf(ifStmt, forStmt)))));
Code = R"cpp(
void func(bool b) {}
struct S {
S(bool b) {}
};
void F() {
func(false);
S s(true);
}
)cpp";
EXPECT_TRUE(matches(Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(callExpr, cxxConstructExpr)
.with(hasArgument(0, trueExpr)))));
EXPECT_TRUE(matches(Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(callExpr, cxxConstructExpr)
.with(hasArgument(0, falseExpr)))));
EXPECT_TRUE(
matches(Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(callExpr, cxxConstructExpr)
.with(hasArgument(0, expr()),
hasDeclaration(functionDecl())))));
EXPECT_TRUE(matches(Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(callExpr, cxxConstructExpr))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(callExpr, cxxConstructExpr).bind("call"))));
Code = R"cpp(
struct HasOpNeqMem
{
bool operator!=(const HasOpNeqMem& other) const
{
return true;
}
};
struct HasOpFree
{
};
bool operator!=(const HasOpFree& lhs, const HasOpFree& rhs)
{
return true;
}
void binop()
{
int s1;
int s2;
if (s1 != s2)
return;
}
void opMem()
{
HasOpNeqMem s1;
HasOpNeqMem s2;
if (s1 != s2)
return;
}
void opFree()
{
HasOpFree s1;
HasOpFree s2;
if (s1 != s2)
return;
}
template<typename T>
void templ()
{
T s1;
T s2;
if (s1 != s2)
return;
}
)cpp";
EXPECT_TRUE(matches(
Code,
traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(binaryOperator, cxxOperatorCallExpr)
.with(hasOperatorName("!="),
forFunction(functionDecl(hasName("binop"))),
hasLHS(declRefExpr(to(varDecl(hasName("s1"))))),
hasRHS(declRefExpr(to(varDecl(hasName("s2")))))))));
EXPECT_TRUE(matches(
Code,
traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(binaryOperator, cxxOperatorCallExpr)
.with(hasOperatorName("!="),
forFunction(functionDecl(hasName("opMem"))),
hasLHS(declRefExpr(to(varDecl(hasName("s1"))))),
hasRHS(declRefExpr(to(varDecl(hasName("s2")))))))));
EXPECT_TRUE(matches(
Code,
traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(binaryOperator, cxxOperatorCallExpr)
.with(hasOperatorName("!="),
forFunction(functionDecl(hasName("opFree"))),
hasLHS(declRefExpr(to(varDecl(hasName("s1"))))),
hasRHS(declRefExpr(to(varDecl(hasName("s2")))))))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(binaryOperator, cxxOperatorCallExpr)
.with(hasOperatorName("!="),
forFunction(functionDecl(hasName("binop"))),
hasEitherOperand(
declRefExpr(to(varDecl(hasName("s1"))))),
hasEitherOperand(
declRefExpr(to(varDecl(hasName("s2")))))))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(binaryOperator, cxxOperatorCallExpr)
.with(hasOperatorName("!="),
forFunction(functionDecl(hasName("opMem"))),
hasEitherOperand(
declRefExpr(to(varDecl(hasName("s1"))))),
hasEitherOperand(
declRefExpr(to(varDecl(hasName("s2")))))))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(binaryOperator, cxxOperatorCallExpr)
.with(hasOperatorName("!="),
forFunction(functionDecl(hasName("opFree"))),
hasEitherOperand(
declRefExpr(to(varDecl(hasName("s1"))))),
hasEitherOperand(
declRefExpr(to(varDecl(hasName("s2")))))))));
EXPECT_TRUE(matches(
Code,
traverse(
TK_IgnoreUnlessSpelledInSource,
mapAnyOf(binaryOperator, cxxOperatorCallExpr)
.with(hasOperatorName("!="),
forFunction(functionDecl(hasName("binop"))),
hasOperands(declRefExpr(to(varDecl(hasName("s1")))),
declRefExpr(to(varDecl(hasName("s2"))))),
hasOperands(declRefExpr(to(varDecl(hasName("s2")))),
declRefExpr(to(varDecl(hasName("s1")))))))));
EXPECT_TRUE(matches(
Code,
traverse(
TK_IgnoreUnlessSpelledInSource,
mapAnyOf(binaryOperator, cxxOperatorCallExpr)
.with(hasOperatorName("!="),
forFunction(functionDecl(hasName("opMem"))),
hasOperands(declRefExpr(to(varDecl(hasName("s1")))),
declRefExpr(to(varDecl(hasName("s2"))))),
hasOperands(declRefExpr(to(varDecl(hasName("s2")))),
declRefExpr(to(varDecl(hasName("s1")))))))));
EXPECT_TRUE(matches(
Code,
traverse(
TK_IgnoreUnlessSpelledInSource,
mapAnyOf(binaryOperator, cxxOperatorCallExpr)
.with(hasOperatorName("!="),
forFunction(functionDecl(hasName("opFree"))),
hasOperands(declRefExpr(to(varDecl(hasName("s1")))),
declRefExpr(to(varDecl(hasName("s2"))))),
hasOperands(declRefExpr(to(varDecl(hasName("s2")))),
declRefExpr(to(varDecl(hasName("s1")))))))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(binaryOperator, cxxOperatorCallExpr)
.with(hasAnyOperatorName("==", "!="),
forFunction(functionDecl(hasName("binop")))))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(binaryOperator, cxxOperatorCallExpr)
.with(hasAnyOperatorName("==", "!="),
forFunction(functionDecl(hasName("opMem")))))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(binaryOperator, cxxOperatorCallExpr)
.with(hasAnyOperatorName("==", "!="),
forFunction(functionDecl(hasName("opFree")))))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
binaryOperation(
hasOperatorName("!="),
forFunction(functionDecl(hasName("binop"))),
hasLHS(declRefExpr(to(varDecl(hasName("s1"))))),
hasRHS(declRefExpr(to(varDecl(hasName("s2")))))))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
binaryOperation(
hasOperatorName("!="),
forFunction(functionDecl(hasName("opMem"))),
hasLHS(declRefExpr(to(varDecl(hasName("s1"))))),
hasRHS(declRefExpr(to(varDecl(hasName("s2")))))))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
binaryOperation(
hasOperatorName("!="),
forFunction(functionDecl(hasName("opFree"))),
hasLHS(declRefExpr(to(varDecl(hasName("s1"))))),
hasRHS(declRefExpr(to(varDecl(hasName("s2")))))))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
binaryOperation(
hasOperatorName("!="),
forFunction(functionDecl(hasName("templ"))),
hasLHS(declRefExpr(to(varDecl(hasName("s1"))))),
hasRHS(declRefExpr(to(varDecl(hasName("s2")))))))));
Code = R"cpp(
struct HasOpEq
{
bool operator==(const HasOpEq &) const;
};
void inverse()
{
HasOpEq s1;
HasOpEq s2;
if (s1 != s2)
return;
}
namespace std {
struct strong_ordering {
int n;
constexpr operator int() const { return n; }
static const strong_ordering equal, greater, less;
};
constexpr strong_ordering strong_ordering::equal = {0};
constexpr strong_ordering strong_ordering::greater = {1};
constexpr strong_ordering strong_ordering::less = {-1};
}
struct HasSpaceshipMem {
int a;
constexpr auto operator<=>(const HasSpaceshipMem&) const = default;
};
void rewritten()
{
HasSpaceshipMem s1;
HasSpaceshipMem s2;
if (s1 != s2)
return;
}
)cpp";
EXPECT_TRUE(matchesConditionally(
Code,
traverse(
TK_IgnoreUnlessSpelledInSource,
binaryOperation(hasOperatorName("!="),
forFunction(functionDecl(hasName("inverse"))),
hasLHS(declRefExpr(to(varDecl(hasName("s1"))))),
hasRHS(declRefExpr(to(varDecl(hasName("s2"))))))),
true, {"-std=c++20"}));
EXPECT_TRUE(matchesConditionally(
Code,
traverse(
TK_IgnoreUnlessSpelledInSource,
binaryOperation(hasOperatorName("!="),
forFunction(functionDecl(hasName("rewritten"))),
hasLHS(declRefExpr(to(varDecl(hasName("s1"))))),
hasRHS(declRefExpr(to(varDecl(hasName("s2"))))))),
true, {"-std=c++20"}));
Code = R"cpp(
struct HasOpBangMem
{
bool operator!() const
{
return false;
}
};
struct HasOpBangFree
{
};
bool operator!(HasOpBangFree const&)
{
return false;
}
void unop()
{
int s1;
if (!s1)
return;
}
void opMem()
{
HasOpBangMem s1;
if (!s1)
return;
}
void opFree()
{
HasOpBangFree s1;
if (!s1)
return;
}
)cpp";
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(unaryOperator, cxxOperatorCallExpr)
.with(hasOperatorName("!"),
forFunction(functionDecl(hasName("unop"))),
hasUnaryOperand(
declRefExpr(to(varDecl(hasName("s1")))))))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(unaryOperator, cxxOperatorCallExpr)
.with(hasOperatorName("!"),
forFunction(functionDecl(hasName("opMem"))),
hasUnaryOperand(
declRefExpr(to(varDecl(hasName("s1")))))))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(unaryOperator, cxxOperatorCallExpr)
.with(hasOperatorName("!"),
forFunction(functionDecl(hasName("opFree"))),
hasUnaryOperand(
declRefExpr(to(varDecl(hasName("s1")))))))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(unaryOperator, cxxOperatorCallExpr)
.with(hasAnyOperatorName("+", "!"),
forFunction(functionDecl(hasName("unop")))))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(unaryOperator, cxxOperatorCallExpr)
.with(hasAnyOperatorName("+", "!"),
forFunction(functionDecl(hasName("opMem")))))));
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
mapAnyOf(unaryOperator, cxxOperatorCallExpr)
.with(hasAnyOperatorName("+", "!"),
forFunction(functionDecl(hasName("opFree")))))));
Code = R"cpp(
struct ConstructorTakesInt
{
ConstructorTakesInt(int i) {}
};
void callTakesInt(int i)
{
}
void doCall()
{
callTakesInt(42);
}
void doConstruct()
{
ConstructorTakesInt cti(42);
}
)cpp";
EXPECT_TRUE(matches(
Code, traverse(TK_IgnoreUnlessSpelledInSource,
invocation(forFunction(functionDecl(hasName("doCall"))),
hasArgument(0, integerLiteral(equals(42))),
hasAnyArgument(integerLiteral(equals(42))),
forEachArgumentWithParam(
integerLiteral(equals(42)),
parmVarDecl(hasName("i")))))));
EXPECT_TRUE(matches(
Code,
traverse(
TK_IgnoreUnlessSpelledInSource,
invocation(forFunction(functionDecl(hasName("doConstruct"))),
hasArgument(0, integerLiteral(equals(42))),
hasAnyArgument(integerLiteral(equals(42))),
forEachArgumentWithParam(integerLiteral(equals(42)),
parmVarDecl(hasName("i")))))));
}
TEST_P(ASTMatchersTest, IsDerivedFrom) {
if (!GetParam().isCXX()) {
return;
}
DeclarationMatcher IsDerivedFromX = cxxRecordDecl(isDerivedFrom("X"));
EXPECT_TRUE(matches("class X {}; class Y : public X {};", IsDerivedFromX));
EXPECT_TRUE(notMatches("class X {};", IsDerivedFromX));
EXPECT_TRUE(notMatches("class X;", IsDerivedFromX));
EXPECT_TRUE(notMatches("class Y;", IsDerivedFromX));
EXPECT_TRUE(notMatches("", IsDerivedFromX));
EXPECT_TRUE(matches("class X {}; template<int N> class Y : Y<N-1>, X {};",
IsDerivedFromX));
EXPECT_TRUE(matches("class X {}; template<int N> class Y : X, Y<N-1> {};",
IsDerivedFromX));
DeclarationMatcher IsZDerivedFromX =
cxxRecordDecl(hasName("Z"), isDerivedFrom("X"));
EXPECT_TRUE(matches("class X {};"
"template<int N> class Y : Y<N-1> {};"
"template<> class Y<0> : X {};"
"class Z : Y<1> {};",
IsZDerivedFromX));
DeclarationMatcher IsDirectlyDerivedFromX =
cxxRecordDecl(isDirectlyDerivedFrom("X"));
EXPECT_TRUE(
matches("class X {}; class Y : public X {};", IsDirectlyDerivedFromX));
EXPECT_TRUE(notMatches("class X {};", IsDirectlyDerivedFromX));
EXPECT_TRUE(notMatches("class X;", IsDirectlyDerivedFromX));
EXPECT_TRUE(notMatches("class Y;", IsDirectlyDerivedFromX));
EXPECT_TRUE(notMatches("", IsDirectlyDerivedFromX));
DeclarationMatcher IsAX = cxxRecordDecl(isSameOrDerivedFrom("X"));
EXPECT_TRUE(matches("class X {}; class Y : public X {};", IsAX));
EXPECT_TRUE(matches("class X {};", IsAX));
EXPECT_TRUE(matches("class X;", IsAX));
EXPECT_TRUE(notMatches("class Y;", IsAX));
EXPECT_TRUE(notMatches("", IsAX));
DeclarationMatcher ZIsDerivedFromX =
cxxRecordDecl(hasName("Z"), isDerivedFrom("X"));
DeclarationMatcher ZIsDirectlyDerivedFromX =
cxxRecordDecl(hasName("Z"), isDirectlyDerivedFrom("X"));
EXPECT_TRUE(
matches("class X {}; class Y : public X {}; class Z : public Y {};",
ZIsDerivedFromX));
EXPECT_TRUE(
notMatches("class X {}; class Y : public X {}; class Z : public Y {};",
ZIsDirectlyDerivedFromX));
EXPECT_TRUE(matches("class X {};"
"template<class T> class Y : public X {};"
"class Z : public Y<int> {};",
ZIsDerivedFromX));
EXPECT_TRUE(notMatches("class X {};"
"template<class T> class Y : public X {};"
"class Z : public Y<int> {};",
ZIsDirectlyDerivedFromX));
EXPECT_TRUE(matches("class X {}; template<class T> class Z : public X {};",
ZIsDerivedFromX));
EXPECT_TRUE(matches("template<class T> class X {}; "
"template<class T> class Z : public X<T> {};",
ZIsDerivedFromX));
EXPECT_TRUE(matches("template<class T, class U=T> class X {}; "
"template<class T> class Z : public X<T> {};",
ZIsDerivedFromX));
EXPECT_TRUE(
notMatches("template<class X> class A { class Z : public X {}; };",
ZIsDerivedFromX));
EXPECT_TRUE(
matches("template<class X> class A { public: class Z : public X {}; }; "
"class X{}; void y() { A<X>::Z z; }",
ZIsDerivedFromX));
EXPECT_TRUE(
matches("template <class T> class X {}; "
"template<class Y> class A { class Z : public X<Y> {}; };",
ZIsDerivedFromX));
EXPECT_TRUE(notMatches("template<template<class T> class X> class A { "
" class Z : public X<int> {}; };",
ZIsDerivedFromX));
EXPECT_TRUE(matches("template<template<class T> class X> class A { "
" public: class Z : public X<int> {}; }; "
"template<class T> class X {}; void y() { A<X>::Z z; }",
ZIsDerivedFromX));
EXPECT_TRUE(
notMatches("template<class X> class A { class Z : public X::D {}; };",
ZIsDerivedFromX));
EXPECT_TRUE(matches("template<class X> class A { public: "
" class Z : public X::D {}; }; "
"class Y { public: class X {}; typedef X D; }; "
"void y() { A<Y>::Z z; }",
ZIsDerivedFromX));
EXPECT_TRUE(matches("class X {}; typedef X Y; class Z : public Y {};",
ZIsDerivedFromX));
EXPECT_TRUE(matches("template<class T> class Y { typedef typename T::U X; "
" class Z : public X {}; };",
ZIsDerivedFromX));
EXPECT_TRUE(matches("class X {}; class Z : public ::X {};", ZIsDerivedFromX));
EXPECT_TRUE(
notMatches("template<class T> class X {}; "
"template<class T> class A { class Z : public X<T>::D {}; };",
ZIsDerivedFromX));
EXPECT_TRUE(
matches("template<class T> class X { public: typedef X<T> D; }; "
"template<class T> class A { public: "
" class Z : public X<T>::D {}; }; void y() { A<int>::Z z; }",
ZIsDerivedFromX));
EXPECT_TRUE(
notMatches("template<class X> class A { class Z : public X::D::E {}; };",
ZIsDerivedFromX));
EXPECT_TRUE(
matches("class X {}; typedef X V; typedef V W; class Z : public W {};",
ZIsDerivedFromX));
EXPECT_TRUE(matches("class X {}; class Y : public X {}; "
"typedef Y V; typedef V W; class Z : public W {};",
ZIsDerivedFromX));
EXPECT_TRUE(notMatches("class X {}; class Y : public X {}; "
"typedef Y V; typedef V W; class Z : public W {};",
ZIsDirectlyDerivedFromX));
EXPECT_TRUE(
matches("template<class T, class U> class X {}; "
"template<class T> class A { class Z : public X<T, int> {}; };",
ZIsDerivedFromX));
EXPECT_TRUE(
notMatches("template<class X> class D { typedef X A; typedef A B; "
" typedef B C; class Z : public C {}; };",
ZIsDerivedFromX));
EXPECT_TRUE(matches("class X {}; typedef X A; typedef A B; "
"class Z : public B {};",
ZIsDerivedFromX));
EXPECT_TRUE(matches("class X {}; typedef X A; typedef A B; typedef B C; "
"class Z : public C {};",
ZIsDerivedFromX));
EXPECT_TRUE(matches("class U {}; typedef U X; typedef X V; "
"class Z : public V {};",
ZIsDerivedFromX));
EXPECT_TRUE(matches("class Base {}; typedef Base X; "
"class Z : public Base {};",
ZIsDerivedFromX));
EXPECT_TRUE(matches("class Base {}; typedef Base Base2; typedef Base2 X; "
"class Z : public Base {};",
ZIsDerivedFromX));
EXPECT_TRUE(notMatches("class Base {}; class Base2 {}; typedef Base2 X; "
"class Z : public Base {};",
ZIsDerivedFromX));
EXPECT_TRUE(matches("class A {}; typedef A X; typedef A Y; "
"class Z : public Y {};",
ZIsDerivedFromX));
EXPECT_TRUE(notMatches("template <typename T> class Z;"
"template <> class Z<void> {};"
"template <typename T> class Z : public Z<void> {};",
IsDerivedFromX));
EXPECT_TRUE(matches("template <typename T> class X;"
"template <> class X<void> {};"
"template <typename T> class X : public X<void> {};",
IsDerivedFromX));
EXPECT_TRUE(
matches("class X {};"
"template <typename T> class Z;"
"template <> class Z<void> {};"
"template <typename T> class Z : public Z<void>, public X {};",
ZIsDerivedFromX));
EXPECT_TRUE(
notMatches("template<int> struct X;"
"template<int i> struct X : public X<i-1> {};",
cxxRecordDecl(isDerivedFrom(recordDecl(hasName("Some"))))));
EXPECT_TRUE(matches(
"struct A {};"
"template<int> struct X;"
"template<int i> struct X : public X<i-1> {};"
"template<> struct X<0> : public A {};"
"struct B : public X<42> {};",
cxxRecordDecl(hasName("B"), isDerivedFrom(recordDecl(hasName("A"))))));
EXPECT_TRUE(notMatches(
"struct A {};"
"template<int> struct X;"
"template<int i> struct X : public X<i-1> {};"
"template<> struct X<0> : public A {};"
"struct B : public X<42> {};",
cxxRecordDecl(hasName("B"),
isDirectlyDerivedFrom(recordDecl(hasName("A"))))));
// FIXME: Once we have better matchers for template type matching,
// get rid of the Variable(...) matching and match the right template
// declarations directly.
const char *RecursiveTemplateOneParameter =
"class Base1 {}; class Base2 {};"
"template <typename T> class Z;"
"template <> class Z<void> : public Base1 {};"
"template <> class Z<int> : public Base2 {};"
"template <> class Z<float> : public Z<void> {};"
"template <> class Z<double> : public Z<int> {};"
"template <typename T> class Z : public Z<float>, public Z<double> {};"
"void f() { Z<float> z_float; Z<double> z_double; Z<char> z_char; }";
EXPECT_TRUE(matches(
RecursiveTemplateOneParameter,
varDecl(hasName("z_float"),
hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base1")))))));
EXPECT_TRUE(notMatches(
RecursiveTemplateOneParameter,
varDecl(hasName("z_float"),
hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base2")))))));
EXPECT_TRUE(
matches(RecursiveTemplateOneParameter,
varDecl(hasName("z_char"),
hasInitializer(hasType(cxxRecordDecl(
isDerivedFrom("Base1"), isDerivedFrom("Base2")))))));
const char *RecursiveTemplateTwoParameters =
"class Base1 {}; class Base2 {};"
"template <typename T1, typename T2> class Z;"
"template <typename T> class Z<void, T> : public Base1 {};"
"template <typename T> class Z<int, T> : public Base2 {};"
"template <typename T> class Z<float, T> : public Z<void, T> {};"
"template <typename T> class Z<double, T> : public Z<int, T> {};"
"template <typename T1, typename T2> class Z : "
" public Z<float, T2>, public Z<double, T2> {};"
"void f() { Z<float, void> z_float; Z<double, void> z_double; "
" Z<char, void> z_char; }";
EXPECT_TRUE(matches(
RecursiveTemplateTwoParameters,
varDecl(hasName("z_float"),
hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base1")))))));
EXPECT_TRUE(notMatches(
RecursiveTemplateTwoParameters,
varDecl(hasName("z_float"),
hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base2")))))));
EXPECT_TRUE(
matches(RecursiveTemplateTwoParameters,
varDecl(hasName("z_char"),
hasInitializer(hasType(cxxRecordDecl(
isDerivedFrom("Base1"), isDerivedFrom("Base2")))))));
EXPECT_TRUE(matches("namespace ns { class X {}; class Y : public X {}; }",
cxxRecordDecl(isDerivedFrom("::ns::X"))));
EXPECT_TRUE(notMatches("class X {}; class Y : public X {};",
cxxRecordDecl(isDerivedFrom("::ns::X"))));
EXPECT_TRUE(matches(
"class X {}; class Y : public X {};",
cxxRecordDecl(isDerivedFrom(recordDecl(hasName("X")).bind("test")))));
EXPECT_TRUE(matches("template<typename T> class X {};"
"template<typename T> using Z = X<T>;"
"template <typename T> class Y : Z<T> {};",
cxxRecordDecl(isDerivedFrom(namedDecl(hasName("X"))))));
}
TEST_P(ASTMatchersTest, IsDerivedFrom_EmptyName) {
if (!GetParam().isCXX()) {
return;
}
const char *const Code = "class X {}; class Y : public X {};";
EXPECT_TRUE(notMatches(Code, cxxRecordDecl(isDerivedFrom(""))));
EXPECT_TRUE(notMatches(Code, cxxRecordDecl(isDirectlyDerivedFrom(""))));
EXPECT_TRUE(notMatches(Code, cxxRecordDecl(isSameOrDerivedFrom(""))));
}
TEST_P(ASTMatchersTest, IsDerivedFrom_ObjC) {
DeclarationMatcher IsDerivedFromX = objcInterfaceDecl(isDerivedFrom("X"));
EXPECT_TRUE(
matchesObjC("@interface X @end @interface Y : X @end", IsDerivedFromX));
EXPECT_TRUE(matchesObjC(
"@interface X @end @interface Y<__covariant ObjectType> : X @end",
IsDerivedFromX));
EXPECT_TRUE(matchesObjC(
"@interface X @end @compatibility_alias Y X; @interface Z : Y @end",
IsDerivedFromX));
EXPECT_TRUE(matchesObjC(
"@interface X @end typedef X Y; @interface Z : Y @end", IsDerivedFromX));
EXPECT_TRUE(notMatchesObjC("@interface X @end", IsDerivedFromX));
EXPECT_TRUE(notMatchesObjC("@class X;", IsDerivedFromX));
EXPECT_TRUE(notMatchesObjC("@class Y;", IsDerivedFromX));
EXPECT_TRUE(notMatchesObjC("@interface X @end @compatibility_alias Y X;",
IsDerivedFromX));
EXPECT_TRUE(notMatchesObjC("@interface X @end typedef X Y;", IsDerivedFromX));
DeclarationMatcher IsDirectlyDerivedFromX =
objcInterfaceDecl(isDirectlyDerivedFrom("X"));
EXPECT_TRUE(matchesObjC("@interface X @end @interface Y : X @end",
IsDirectlyDerivedFromX));
EXPECT_TRUE(matchesObjC(
"@interface X @end @interface Y<__covariant ObjectType> : X @end",
IsDirectlyDerivedFromX));
EXPECT_TRUE(matchesObjC(
"@interface X @end @compatibility_alias Y X; @interface Z : Y @end",
IsDirectlyDerivedFromX));
EXPECT_TRUE(
matchesObjC("@interface X @end typedef X Y; @interface Z : Y @end",
IsDirectlyDerivedFromX));
EXPECT_TRUE(notMatchesObjC("@interface X @end", IsDirectlyDerivedFromX));
EXPECT_TRUE(notMatchesObjC("@class X;", IsDirectlyDerivedFromX));
EXPECT_TRUE(notMatchesObjC("@class Y;", IsDirectlyDerivedFromX));
EXPECT_TRUE(notMatchesObjC("@interface X @end @compatibility_alias Y X;",
IsDirectlyDerivedFromX));
EXPECT_TRUE(
notMatchesObjC("@interface X @end typedef X Y;", IsDirectlyDerivedFromX));
DeclarationMatcher IsAX = objcInterfaceDecl(isSameOrDerivedFrom("X"));
EXPECT_TRUE(matchesObjC("@interface X @end @interface Y : X @end", IsAX));
EXPECT_TRUE(matchesObjC("@interface X @end", IsAX));
EXPECT_TRUE(matchesObjC("@class X;", IsAX));
EXPECT_TRUE(notMatchesObjC("@interface Y @end", IsAX));
EXPECT_TRUE(notMatchesObjC("@class Y;", IsAX));
DeclarationMatcher ZIsDerivedFromX =
objcInterfaceDecl(hasName("Z"), isDerivedFrom("X"));
DeclarationMatcher ZIsDirectlyDerivedFromX =
objcInterfaceDecl(hasName("Z"), isDirectlyDerivedFrom("X"));
EXPECT_TRUE(matchesObjC(
"@interface X @end @interface Y : X @end @interface Z : Y @end",
ZIsDerivedFromX));
EXPECT_TRUE(matchesObjC("@interface X @end @interface Y : X @end typedef Y "
"V; typedef V W; @interface Z : W @end",
ZIsDerivedFromX));
EXPECT_TRUE(matchesObjC(
"@interface X @end typedef X Y; @interface Z : Y @end", ZIsDerivedFromX));
EXPECT_TRUE(
matchesObjC("@interface X @end typedef X Y; @interface Z : Y @end",
ZIsDirectlyDerivedFromX));
EXPECT_TRUE(matchesObjC(
"@interface A @end typedef A X; typedef A Y; @interface Z : Y @end",
ZIsDerivedFromX));
EXPECT_TRUE(matchesObjC(
"@interface A @end typedef A X; typedef A Y; @interface Z : Y @end",
ZIsDirectlyDerivedFromX));
EXPECT_TRUE(matchesObjC(
"@interface X @end @compatibility_alias Y X; @interface Z : Y @end",
ZIsDerivedFromX));
EXPECT_TRUE(matchesObjC(
"@interface X @end @compatibility_alias Y X; @interface Z : Y @end",
ZIsDirectlyDerivedFromX));
EXPECT_TRUE(matchesObjC(
"@interface Y @end @compatibility_alias X Y; @interface Z : Y @end",
ZIsDerivedFromX));
EXPECT_TRUE(matchesObjC(
"@interface Y @end @compatibility_alias X Y; @interface Z : Y @end",
ZIsDirectlyDerivedFromX));
EXPECT_TRUE(matchesObjC(
"@interface A @end @compatibility_alias X A; @compatibility_alias Y A;"
"@interface Z : Y @end",
ZIsDerivedFromX));
EXPECT_TRUE(matchesObjC(
"@interface A @end @compatibility_alias X A; @compatibility_alias Y A;"
"@interface Z : Y @end",
ZIsDirectlyDerivedFromX));
EXPECT_TRUE(matchesObjC(
"@interface Y @end typedef Y X; @interface Z : X @end", ZIsDerivedFromX));
EXPECT_TRUE(
matchesObjC("@interface Y @end typedef Y X; @interface Z : X @end",
ZIsDirectlyDerivedFromX));
EXPECT_TRUE(
matchesObjC("@interface A @end @compatibility_alias Y A; typedef Y X;"
"@interface Z : A @end",
ZIsDerivedFromX));
EXPECT_TRUE(
matchesObjC("@interface A @end @compatibility_alias Y A; typedef Y X;"
"@interface Z : A @end",
ZIsDirectlyDerivedFromX));
EXPECT_TRUE(
matchesObjC("@interface A @end typedef A Y; @compatibility_alias X Y;"
"@interface Z : A @end",
ZIsDerivedFromX));
EXPECT_TRUE(
matchesObjC("@interface A @end typedef A Y; @compatibility_alias X Y;"
"@interface Z : A @end",
ZIsDirectlyDerivedFromX));
}
TEST_P(ASTMatchersTest, IsLambda) {
if (!GetParam().isCXX11OrLater()) {
return;
}
const auto IsLambda = cxxMethodDecl(ofClass(cxxRecordDecl(isLambda())));
EXPECT_TRUE(matches("auto x = []{};", IsLambda));
EXPECT_TRUE(notMatches("struct S { void operator()() const; };", IsLambda));
}
TEST_P(ASTMatchersTest, Bind) {
DeclarationMatcher ClassX = has(recordDecl(hasName("::X")).bind("x"));
EXPECT_TRUE(matchAndVerifyResultTrue(
"class X {};", ClassX,
std::make_unique<VerifyIdIsBoundTo<CXXRecordDecl>>("x")));
EXPECT_TRUE(matchAndVerifyResultFalse(
"class X {};", ClassX,
std::make_unique<VerifyIdIsBoundTo<CXXRecordDecl>>("other-id")));
TypeMatcher TypeAHasClassB = hasDeclaration(
recordDecl(hasName("A"), has(recordDecl(hasName("B")).bind("b"))));
EXPECT_TRUE(matchAndVerifyResultTrue(
"class A { public: A *a; class B {}; };", TypeAHasClassB,
std::make_unique<VerifyIdIsBoundTo<Decl>>("b")));
StatementMatcher MethodX =
callExpr(callee(cxxMethodDecl(hasName("x")))).bind("x");
EXPECT_TRUE(matchAndVerifyResultTrue(
"class A { void x() { x(); } };", MethodX,
std::make_unique<VerifyIdIsBoundTo<CXXMemberCallExpr>>("x")));
}
TEST_P(ASTMatchersTest, Bind_SameNameInAlternatives) {
StatementMatcher matcher = anyOf(
binaryOperator(hasOperatorName("+"), hasLHS(expr().bind("x")),
hasRHS(integerLiteral(equals(0)))),
binaryOperator(hasOperatorName("+"), hasLHS(integerLiteral(equals(0))),
hasRHS(expr().bind("x"))));
EXPECT_TRUE(matchAndVerifyResultTrue(
// The first branch of the matcher binds x to 0 but then fails.
// The second branch binds x to f() and succeeds.
"int f() { return 0 + f(); }", matcher,
std::make_unique<VerifyIdIsBoundTo<CallExpr>>("x")));
}
TEST_P(ASTMatchersTest, Bind_BindsIDForMemoizedResults) {
// Using the same matcher in two match expressions will make memoization
// kick in.
DeclarationMatcher ClassX = recordDecl(hasName("X")).bind("x");
EXPECT_TRUE(matchAndVerifyResultTrue(
"class A { class B { class X {}; }; };",
DeclarationMatcher(
anyOf(recordDecl(hasName("A"), hasDescendant(ClassX)),
recordDecl(hasName("B"), hasDescendant(ClassX)))),
std::make_unique<VerifyIdIsBoundTo<Decl>>("x", 2)));
}
TEST_P(ASTMatchersTest, HasType_MatchesAsString) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `hasType()` that does not depend on C++.
return;
}
EXPECT_TRUE(
matches("class Y { public: void x(); }; void z() {Y* y; y->x(); }",
cxxMemberCallExpr(on(hasType(asString("class Y *"))))));
EXPECT_TRUE(
matches("class X { void x(int x) {} };",
cxxMethodDecl(hasParameter(0, hasType(asString("int"))))));
EXPECT_TRUE(matches("namespace ns { struct A {}; } struct B { ns::A a; };",
fieldDecl(hasType(asString("ns::A")))));
EXPECT_TRUE(
matches("namespace { struct A {}; } struct B { A a; };",
fieldDecl(hasType(asString("struct (anonymous namespace)::A")))));
}
TEST_P(ASTMatchersTest, HasOverloadedOperatorName) {
if (!GetParam().isCXX()) {
return;
}
StatementMatcher OpCallAndAnd =
cxxOperatorCallExpr(hasOverloadedOperatorName("&&"));
EXPECT_TRUE(matches("class Y { }; "
"bool operator&&(Y x, Y y) { return true; }; "
"Y a; Y b; bool c = a && b;",
OpCallAndAnd));
StatementMatcher OpCallLessLess =
cxxOperatorCallExpr(hasOverloadedOperatorName("<<"));
EXPECT_TRUE(notMatches("class Y { }; "
"bool operator&&(Y x, Y y) { return true; }; "
"Y a; Y b; bool c = a && b;",
OpCallLessLess));
StatementMatcher OpStarCall =
cxxOperatorCallExpr(hasOverloadedOperatorName("*"));
EXPECT_TRUE(
matches("class Y; int operator*(Y &); void f(Y &y) { *y; }", OpStarCall));
DeclarationMatcher ClassWithOpStar =
cxxRecordDecl(hasMethod(hasOverloadedOperatorName("*")));
EXPECT_TRUE(matches("class Y { int operator*(); };", ClassWithOpStar));
EXPECT_TRUE(notMatches("class Y { void myOperator(); };", ClassWithOpStar));
DeclarationMatcher AnyOpStar = functionDecl(hasOverloadedOperatorName("*"));
EXPECT_TRUE(matches("class Y; int operator*(Y &);", AnyOpStar));
EXPECT_TRUE(matches("class Y { int operator*(); };", AnyOpStar));
DeclarationMatcher AnyAndOp =
functionDecl(hasAnyOverloadedOperatorName("&", "&&"));
EXPECT_TRUE(matches("class Y; Y operator&(Y &, Y &);", AnyAndOp));
EXPECT_TRUE(matches("class Y; Y operator&&(Y &, Y &);", AnyAndOp));
EXPECT_TRUE(matches("class Y { Y operator&(Y &); };", AnyAndOp));
EXPECT_TRUE(matches("class Y { Y operator&&(Y &); };", AnyAndOp));
}
TEST_P(ASTMatchersTest, HasOverloadedOperatorName_MatchesNestedCalls) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matchAndVerifyResultTrue(
"class Y { }; "
"Y& operator&&(Y& x, Y& y) { return x; }; "
"Y a; Y b; Y c; Y d = a && b && c;",
cxxOperatorCallExpr(hasOverloadedOperatorName("&&")).bind("x"),
std::make_unique<VerifyIdIsBoundTo<CXXOperatorCallExpr>>("x", 2)));
EXPECT_TRUE(matches("class Y { }; "
"Y& operator&&(Y& x, Y& y) { return x; }; "
"Y a; Y b; Y c; Y d = a && b && c;",
cxxOperatorCallExpr(hasParent(cxxOperatorCallExpr()))));
EXPECT_TRUE(
matches("class Y { }; "
"Y& operator&&(Y& x, Y& y) { return x; }; "
"Y a; Y b; Y c; Y d = a && b && c;",
cxxOperatorCallExpr(hasDescendant(cxxOperatorCallExpr()))));
}
TEST_P(ASTMatchersTest, HasLocalStorage) {
auto M = varDecl(hasName("X"), hasLocalStorage());
EXPECT_TRUE(matches("void f() { int X; }", M));
EXPECT_TRUE(notMatches("int X;", M));
EXPECT_TRUE(notMatches("void f() { static int X; }", M));
}
TEST_P(ASTMatchersTest, HasGlobalStorage) {
auto M = varDecl(hasName("X"), hasGlobalStorage());
EXPECT_TRUE(notMatches("void f() { int X; }", M));
EXPECT_TRUE(matches("int X;", M));
EXPECT_TRUE(matches("void f() { static int X; }", M));
}
TEST_P(ASTMatchersTest, IsStaticLocal) {
auto M = varDecl(isStaticLocal());
EXPECT_TRUE(matches("void f() { static int X; }", M));
EXPECT_TRUE(notMatches("static int X;", M));
EXPECT_TRUE(notMatches("void f() { int X; }", M));
EXPECT_TRUE(notMatches("int X;", M));
}
TEST_P(ASTMatchersTest, IsInitCapture) {
if (!GetParam().isCXX11OrLater()) {
return;
}
auto M = varDecl(hasName("vd"), isInitCapture());
EXPECT_TRUE(notMatches(
"int main() { int vd = 3; auto f = [vd]() { return vd; }; }", M));
if (!GetParam().isCXX14OrLater()) {
return;
}
EXPECT_TRUE(matches("int main() { auto f = [vd=3]() { return vd; }; }", M));
EXPECT_TRUE(matches(
"int main() { int x = 3; auto f = [vd=x]() { return vd; }; }", M));
}
TEST_P(ASTMatchersTest, StorageDuration) {
StringRef T =
"void f() { int x; static int y; } int a;static int b;extern int c;";
EXPECT_TRUE(matches(T, varDecl(hasName("x"), hasAutomaticStorageDuration())));
EXPECT_TRUE(
notMatches(T, varDecl(hasName("y"), hasAutomaticStorageDuration())));
EXPECT_TRUE(
notMatches(T, varDecl(hasName("a"), hasAutomaticStorageDuration())));
EXPECT_TRUE(matches(T, varDecl(hasName("y"), hasStaticStorageDuration())));
EXPECT_TRUE(matches(T, varDecl(hasName("a"), hasStaticStorageDuration())));
EXPECT_TRUE(matches(T, varDecl(hasName("b"), hasStaticStorageDuration())));
EXPECT_TRUE(matches(T, varDecl(hasName("c"), hasStaticStorageDuration())));
EXPECT_TRUE(notMatches(T, varDecl(hasName("x"), hasStaticStorageDuration())));
// FIXME: Add thread_local variables to the source code snippet.
EXPECT_TRUE(notMatches(T, varDecl(hasName("x"), hasThreadStorageDuration())));
EXPECT_TRUE(notMatches(T, varDecl(hasName("y"), hasThreadStorageDuration())));
EXPECT_TRUE(notMatches(T, varDecl(hasName("a"), hasThreadStorageDuration())));
}
TEST_P(ASTMatchersTest, VarDecl_MatchesFunctionParameter) {
EXPECT_TRUE(matches("void f(int i) {}", varDecl(hasName("i"))));
}
TEST_P(ASTMatchersTest, SizeOfExpr_MatchesCorrectType) {
EXPECT_TRUE(matches("void x() { int a = sizeof(a); }",
sizeOfExpr(hasArgumentOfType(asString("int")))));
EXPECT_TRUE(notMatches("void x() { int a = sizeof(a); }",
sizeOfExpr(hasArgumentOfType(asString("float")))));
EXPECT_TRUE(matches(
"struct A {}; void x() { struct A a; int b = sizeof(a); }",
sizeOfExpr(hasArgumentOfType(hasDeclaration(recordDecl(hasName("A")))))));
EXPECT_TRUE(notMatches("void x() { int a = sizeof(a); }",
sizeOfExpr(hasArgumentOfType(
hasDeclaration(recordDecl(hasName("string")))))));
}
TEST_P(ASTMatchersTest, IsInteger_MatchesIntegers) {
EXPECT_TRUE(matches("int i = 0;", varDecl(hasType(isInteger()))));
EXPECT_TRUE(
matches("long long i = 0; void f(long long) { }; void g() {f(i);}",
callExpr(hasArgument(
0, declRefExpr(to(varDecl(hasType(isInteger()))))))));
}
TEST_P(ASTMatchersTest, IsInteger_ReportsNoFalsePositives) {
if (!GetParam().isCXX()) {
// FIXME: Add a similar negative test for `isInteger()` that does not depend
// on C++.
return;
}
EXPECT_TRUE(notMatches("int *i;", varDecl(hasType(isInteger()))));
EXPECT_TRUE(
notMatches("struct T {}; T t; void f(T *) { }; void g() {f(&t);}",
callExpr(hasArgument(
0, declRefExpr(to(varDecl(hasType(isInteger()))))))));
}
TEST_P(ASTMatchersTest, IsSignedInteger_MatchesSignedIntegers) {
EXPECT_TRUE(matches("int i = 0;", varDecl(hasType(isSignedInteger()))));
EXPECT_TRUE(
notMatches("unsigned i = 0;", varDecl(hasType(isSignedInteger()))));
}
TEST_P(ASTMatchersTest, IsUnsignedInteger_MatchesUnsignedIntegers) {
EXPECT_TRUE(notMatches("int i = 0;", varDecl(hasType(isUnsignedInteger()))));
EXPECT_TRUE(
matches("unsigned i = 0;", varDecl(hasType(isUnsignedInteger()))));
}
TEST_P(ASTMatchersTest, IsAnyPointer_MatchesPointers) {
if (!GetParam().isCXX11OrLater()) {
// FIXME: Add a test for `isAnyPointer()` that does not depend on C++.
return;
}
EXPECT_TRUE(matches("int* i = nullptr;", varDecl(hasType(isAnyPointer()))));
}
TEST_P(ASTMatchersTest, IsAnyPointer_MatchesObjcPointer) {
EXPECT_TRUE(matchesObjC("@interface Foo @end Foo *f;",
varDecl(hasType(isAnyPointer()))));
}
TEST_P(ASTMatchersTest, IsAnyPointer_ReportsNoFalsePositives) {
EXPECT_TRUE(notMatches("int i = 0;", varDecl(hasType(isAnyPointer()))));
}
TEST_P(ASTMatchersTest, IsAnyCharacter_MatchesCharacters) {
EXPECT_TRUE(matches("char i = 0;", varDecl(hasType(isAnyCharacter()))));
}
TEST_P(ASTMatchersTest, IsAnyCharacter_ReportsNoFalsePositives) {
EXPECT_TRUE(notMatches("int i;", varDecl(hasType(isAnyCharacter()))));
}
TEST_P(ASTMatchersTest, IsArrow_MatchesMemberVariablesViaArrow) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `isArrow()` that does not depend on C++.
return;
}
if (GetParam().hasDelayedTemplateParsing()) {
// FIXME: Fix this test to work with delayed template parsing.
return;
}
EXPECT_TRUE(matches("class Y { void x() { this->y; } int y; };",
memberExpr(isArrow())));
EXPECT_TRUE(
matches("class Y { void x() { y; } int y; };", memberExpr(isArrow())));
EXPECT_TRUE(notMatches("class Y { void x() { (*this).y; } int y; };",
memberExpr(isArrow())));
EXPECT_TRUE(matches("template <class T> class Y { void x() { this->m; } };",
cxxDependentScopeMemberExpr(isArrow())));
EXPECT_TRUE(
notMatches("template <class T> class Y { void x() { (*this).m; } };",
cxxDependentScopeMemberExpr(isArrow())));
}
TEST_P(ASTMatchersTest, IsArrow_MatchesStaticMemberVariablesViaArrow) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `isArrow()` that does not depend on C++.
return;
}
EXPECT_TRUE(matches("class Y { void x() { this->y; } static int y; };",
memberExpr(isArrow())));
EXPECT_TRUE(notMatches("class Y { void x() { y; } static int y; };",
memberExpr(isArrow())));
EXPECT_TRUE(notMatches("class Y { void x() { (*this).y; } static int y; };",
memberExpr(isArrow())));
}
TEST_P(ASTMatchersTest, IsArrow_MatchesMemberCallsViaArrow) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `isArrow()` that does not depend on C++.
return;
}
if (GetParam().hasDelayedTemplateParsing()) {
// FIXME: Fix this test to work with delayed template parsing.
return;
}
EXPECT_TRUE(
matches("class Y { void x() { this->x(); } };", memberExpr(isArrow())));
EXPECT_TRUE(matches("class Y { void x() { x(); } };", memberExpr(isArrow())));
EXPECT_TRUE(notMatches("class Y { void x() { Y y; y.x(); } };",
memberExpr(isArrow())));
EXPECT_TRUE(
matches("class Y { template <class T> void x() { this->x<T>(); } };",
unresolvedMemberExpr(isArrow())));
EXPECT_TRUE(matches("class Y { template <class T> void x() { x<T>(); } };",
unresolvedMemberExpr(isArrow())));
EXPECT_TRUE(
notMatches("class Y { template <class T> void x() { (*this).x<T>(); } };",
unresolvedMemberExpr(isArrow())));
}
TEST_P(ASTMatchersTest, IsExplicit_CXXConversionDecl) {
if (!GetParam().isCXX11OrLater()) {
return;
}
EXPECT_TRUE(matches("struct S { explicit operator int(); };",
cxxConversionDecl(isExplicit())));
EXPECT_TRUE(notMatches("struct S { operator int(); };",
cxxConversionDecl(isExplicit())));
}
TEST_P(ASTMatchersTest, IsExplicit_CXXConversionDecl_CXX20) {
if (!GetParam().isCXX20OrLater()) {
return;
}
EXPECT_TRUE(
notMatches("template<bool b> struct S { explicit(b) operator int(); };",
cxxConversionDecl(isExplicit())));
EXPECT_TRUE(matches("struct S { explicit(true) operator int(); };",
cxxConversionDecl(isExplicit())));
EXPECT_TRUE(notMatches("struct S { explicit(false) operator int(); };",
cxxConversionDecl(isExplicit())));
}
TEST_P(ASTMatchersTest, ArgumentCountIs_CallExpr) {
StatementMatcher Call1Arg = callExpr(argumentCountIs(1));
EXPECT_TRUE(matches("void x(int) { x(0); }", Call1Arg));
EXPECT_TRUE(notMatches("void x(int, int) { x(0, 0); }", Call1Arg));
}
TEST_P(ASTMatchersTest, ArgumentCountIs_CallExpr_CXX) {
if (!GetParam().isCXX()) {
return;
}
StatementMatcher Call1Arg = callExpr(argumentCountIs(1));
EXPECT_TRUE(matches("class X { void x(int) { x(0); } };", Call1Arg));
}
TEST_P(ASTMatchersTest, ParameterCountIs) {
DeclarationMatcher Function1Arg = functionDecl(parameterCountIs(1));
EXPECT_TRUE(matches("void f(int i) {}", Function1Arg));
EXPECT_TRUE(notMatches("void f() {}", Function1Arg));
EXPECT_TRUE(notMatches("void f(int i, int j, int k) {}", Function1Arg));
EXPECT_TRUE(matches("void f(int i, ...) {};", Function1Arg));
}
TEST_P(ASTMatchersTest, ParameterCountIs_CXX) {
if (!GetParam().isCXX()) {
return;
}
DeclarationMatcher Function1Arg = functionDecl(parameterCountIs(1));
EXPECT_TRUE(matches("class X { void f(int i) {} };", Function1Arg));
}
TEST_P(ASTMatchersTest, References) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `references()` that does not depend on C++.
return;
}
DeclarationMatcher ReferenceClassX =
varDecl(hasType(references(recordDecl(hasName("X")))));
EXPECT_TRUE(
matches("class X {}; void y(X y) { X &x = y; }", ReferenceClassX));
EXPECT_TRUE(
matches("class X {}; void y(X y) { const X &x = y; }", ReferenceClassX));
// The match here is on the implicit copy constructor code for
// class X, not on code 'X x = y'.
EXPECT_TRUE(matches("class X {}; void y(X y) { X x = y; }", ReferenceClassX));
EXPECT_TRUE(notMatches("class X {}; extern X x;", ReferenceClassX));
EXPECT_TRUE(
notMatches("class X {}; void y(X *y) { X *&x = y; }", ReferenceClassX));
}
TEST_P(ASTMatchersTest, HasLocalQualifiers) {
if (!GetParam().isCXX11OrLater()) {
// FIXME: Add a test for `hasLocalQualifiers()` that does not depend on C++.
return;
}
EXPECT_TRUE(notMatches("typedef const int const_int; const_int i = 1;",
varDecl(hasType(hasLocalQualifiers()))));
EXPECT_TRUE(matches("int *const j = nullptr;",
varDecl(hasType(hasLocalQualifiers()))));
EXPECT_TRUE(
matches("int *volatile k;", varDecl(hasType(hasLocalQualifiers()))));
EXPECT_TRUE(notMatches("int m;", varDecl(hasType(hasLocalQualifiers()))));
}
TEST_P(ASTMatchersTest, IsExternC_MatchesExternCFunctionDeclarations) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("extern \"C\" void f() {}", functionDecl(isExternC())));
EXPECT_TRUE(
matches("extern \"C\" { void f() {} }", functionDecl(isExternC())));
EXPECT_TRUE(notMatches("void f() {}", functionDecl(isExternC())));
}
TEST_P(ASTMatchersTest, IsExternC_MatchesExternCVariableDeclarations) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("extern \"C\" int i;", varDecl(isExternC())));
EXPECT_TRUE(matches("extern \"C\" { int i; }", varDecl(isExternC())));
EXPECT_TRUE(notMatches("int i;", varDecl(isExternC())));
}
TEST_P(ASTMatchersTest, IsStaticStorageClass) {
EXPECT_TRUE(
matches("static void f() {}", functionDecl(isStaticStorageClass())));
EXPECT_TRUE(matches("static int i = 1;", varDecl(isStaticStorageClass())));
EXPECT_TRUE(notMatches("int i = 1;", varDecl(isStaticStorageClass())));
EXPECT_TRUE(notMatches("extern int i;", varDecl(isStaticStorageClass())));
EXPECT_TRUE(notMatches("void f() {}", functionDecl(isStaticStorageClass())));
}
TEST_P(ASTMatchersTest, IsDefaulted) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("class A { ~A(); };",
functionDecl(hasName("~A"), isDefaulted())));
EXPECT_TRUE(matches("class B { ~B() = default; };",
functionDecl(hasName("~B"), isDefaulted())));
}
TEST_P(ASTMatchersTest, IsDeleted) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
notMatches("void Func();", functionDecl(hasName("Func"), isDeleted())));
EXPECT_TRUE(matches("void Func() = delete;",
functionDecl(hasName("Func"), isDeleted())));
}
TEST_P(ASTMatchersTest, IsNoThrow_DynamicExceptionSpec) {
if (!GetParam().supportsCXXDynamicExceptionSpecification()) {
return;
}
EXPECT_TRUE(notMatches("void f();", functionDecl(isNoThrow())));
EXPECT_TRUE(notMatches("void f() throw(int);", functionDecl(isNoThrow())));
EXPECT_TRUE(matches("void f() throw();", functionDecl(isNoThrow())));
EXPECT_TRUE(notMatches("void f();", functionProtoType(isNoThrow())));
EXPECT_TRUE(
notMatches("void f() throw(int);", functionProtoType(isNoThrow())));
EXPECT_TRUE(matches("void f() throw();", functionProtoType(isNoThrow())));
}
TEST_P(ASTMatchersTest, IsNoThrow_CXX11) {
if (!GetParam().isCXX11OrLater()) {
return;
}
EXPECT_TRUE(
notMatches("void f() noexcept(false);", functionDecl(isNoThrow())));
EXPECT_TRUE(matches("void f() noexcept;", functionDecl(isNoThrow())));
EXPECT_TRUE(
notMatches("void f() noexcept(false);", functionProtoType(isNoThrow())));
EXPECT_TRUE(matches("void f() noexcept;", functionProtoType(isNoThrow())));
}
TEST_P(ASTMatchersTest, IsConstexpr) {
if (!GetParam().isCXX11OrLater()) {
return;
}
EXPECT_TRUE(matches("constexpr int foo = 42;",
varDecl(hasName("foo"), isConstexpr())));
EXPECT_TRUE(matches("constexpr int bar();",
functionDecl(hasName("bar"), isConstexpr())));
}
TEST_P(ASTMatchersTest, IsConstexpr_MatchesIfConstexpr) {
if (!GetParam().isCXX17OrLater()) {
return;
}
EXPECT_TRUE(
matches("void baz() { if constexpr(1 > 0) {} }", ifStmt(isConstexpr())));
EXPECT_TRUE(
notMatches("void baz() { if (1 > 0) {} }", ifStmt(isConstexpr())));
}
TEST_P(ASTMatchersTest, HasInitStatement_MatchesSelectionInitializers) {
EXPECT_TRUE(notMatches("void baz() { if (1 > 0) {} }",
ifStmt(hasInitStatement(anything()))));
EXPECT_TRUE(notMatches("void baz(int i) { switch (i) { default: break; } }",
switchStmt(hasInitStatement(anything()))));
}
TEST_P(ASTMatchersTest, HasInitStatement_MatchesSelectionInitializers_CXX) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("void baz() { if (int i = 1) {} }",
ifStmt(hasInitStatement(anything()))));
}
TEST_P(ASTMatchersTest, HasInitStatement_MatchesSelectionInitializers_CXX17) {
if (!GetParam().isCXX17OrLater()) {
return;
}
EXPECT_TRUE(matches("void baz() { if (int i = 1; i > 0) {} }",
ifStmt(hasInitStatement(anything()))));
EXPECT_TRUE(
matches("void baz(int i) { switch (int j = i; j) { default: break; } }",
switchStmt(hasInitStatement(anything()))));
}
TEST_P(ASTMatchersTest, HasInitStatement_MatchesRangeForInitializers) {
if (!GetParam().isCXX20OrLater()) {
return;
}
EXPECT_TRUE(matches("void baz() {"
"int items[] = {};"
"for (auto &arr = items; auto &item : arr) {}"
"}",
cxxForRangeStmt(hasInitStatement(anything()))));
EXPECT_TRUE(notMatches("void baz() {"
"int items[] = {};"
"for (auto &item : items) {}"
"}",
cxxForRangeStmt(hasInitStatement(anything()))));
}
TEST_P(ASTMatchersTest, TemplateArgumentCountIs) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
matches("template<typename T> struct C {}; C<int> c;",
classTemplateSpecializationDecl(templateArgumentCountIs(1))));
EXPECT_TRUE(
notMatches("template<typename T> struct C {}; C<int> c;",
classTemplateSpecializationDecl(templateArgumentCountIs(2))));
EXPECT_TRUE(matches("template<typename T> struct C {}; C<int> c;",
templateSpecializationType(templateArgumentCountIs(1))));
EXPECT_TRUE(
notMatches("template<typename T> struct C {}; C<int> c;",
templateSpecializationType(templateArgumentCountIs(2))));
}
TEST_P(ASTMatchersTest, IsIntegral) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches(
"template<int T> struct C {}; C<42> c;",
classTemplateSpecializationDecl(hasAnyTemplateArgument(isIntegral()))));
EXPECT_TRUE(notMatches("template<typename T> struct C {}; C<int> c;",
classTemplateSpecializationDecl(hasAnyTemplateArgument(
templateArgument(isIntegral())))));
}
TEST_P(ASTMatchersTest, EqualsIntegralValue) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("template<int T> struct C {}; C<42> c;",
classTemplateSpecializationDecl(
hasAnyTemplateArgument(equalsIntegralValue("42")))));
EXPECT_TRUE(matches("template<int T> struct C {}; C<-42> c;",
classTemplateSpecializationDecl(
hasAnyTemplateArgument(equalsIntegralValue("-42")))));
EXPECT_TRUE(matches("template<int T> struct C {}; C<-0042> c;",
classTemplateSpecializationDecl(
hasAnyTemplateArgument(equalsIntegralValue("-34")))));
EXPECT_TRUE(notMatches("template<int T> struct C {}; C<42> c;",
classTemplateSpecializationDecl(hasAnyTemplateArgument(
equalsIntegralValue("0042")))));
}
TEST_P(ASTMatchersTest, AccessSpecDecl) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("class C { public: int i; };", accessSpecDecl()));
EXPECT_TRUE(
matches("class C { public: int i; };", accessSpecDecl(isPublic())));
EXPECT_TRUE(
notMatches("class C { public: int i; };", accessSpecDecl(isProtected())));
EXPECT_TRUE(
notMatches("class C { public: int i; };", accessSpecDecl(isPrivate())));
EXPECT_TRUE(notMatches("class C { int i; };", accessSpecDecl()));
}
TEST_P(ASTMatchersTest, IsFinal) {
if (!GetParam().isCXX11OrLater()) {
return;
}
EXPECT_TRUE(matches("class X final {};", cxxRecordDecl(isFinal())));
EXPECT_TRUE(matches("class X { virtual void f() final; };",
cxxMethodDecl(isFinal())));
EXPECT_TRUE(notMatches("class X {};", cxxRecordDecl(isFinal())));
EXPECT_TRUE(
notMatches("class X { virtual void f(); };", cxxMethodDecl(isFinal())));
}
TEST_P(ASTMatchersTest, IsVirtual) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("class X { virtual int f(); };",
cxxMethodDecl(isVirtual(), hasName("::X::f"))));
EXPECT_TRUE(notMatches("class X { int f(); };", cxxMethodDecl(isVirtual())));
}
TEST_P(ASTMatchersTest, IsVirtualAsWritten) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("class A { virtual int f(); };"
"class B : public A { int f(); };",
cxxMethodDecl(isVirtualAsWritten(), hasName("::A::f"))));
EXPECT_TRUE(
notMatches("class A { virtual int f(); };"
"class B : public A { int f(); };",
cxxMethodDecl(isVirtualAsWritten(), hasName("::B::f"))));
}
TEST_P(ASTMatchersTest, IsPure) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("class X { virtual int f() = 0; };",
cxxMethodDecl(isPure(), hasName("::X::f"))));
EXPECT_TRUE(notMatches("class X { int f(); };", cxxMethodDecl(isPure())));
}
TEST_P(ASTMatchersTest, IsCopyAssignmentOperator) {
if (!GetParam().isCXX()) {
return;
}
auto CopyAssignment =
cxxMethodDecl(isCopyAssignmentOperator(), unless(isImplicit()));
EXPECT_TRUE(matches("class X { X &operator=(X); };", CopyAssignment));
EXPECT_TRUE(matches("class X { X &operator=(X &); };", CopyAssignment));
EXPECT_TRUE(matches("class X { X &operator=(const X &); };", CopyAssignment));
EXPECT_TRUE(matches("class X { X &operator=(volatile X &); };", //
CopyAssignment));
EXPECT_TRUE(matches("class X { X &operator=(const volatile X &); };",
CopyAssignment));
EXPECT_TRUE(notMatches("class X { X &operator=(X &&); };", CopyAssignment));
}
TEST_P(ASTMatchersTest, IsMoveAssignmentOperator) {
if (!GetParam().isCXX()) {
return;
}
auto MoveAssignment =
cxxMethodDecl(isMoveAssignmentOperator(), unless(isImplicit()));
EXPECT_TRUE(notMatches("class X { X &operator=(X); };", MoveAssignment));
EXPECT_TRUE(matches("class X { X &operator=(X &&); };", MoveAssignment));
EXPECT_TRUE(matches("class X { X &operator=(const X &&); };", //
MoveAssignment));
EXPECT_TRUE(matches("class X { X &operator=(volatile X &&); };", //
MoveAssignment));
EXPECT_TRUE(matches("class X { X &operator=(const volatile X &&); };",
MoveAssignment));
EXPECT_TRUE(notMatches("class X { X &operator=(X &); };", MoveAssignment));
}
TEST_P(ASTMatchersTest, IsConst) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
matches("struct A { void foo() const; };", cxxMethodDecl(isConst())));
EXPECT_TRUE(
notMatches("struct A { void foo(); };", cxxMethodDecl(isConst())));
}
TEST_P(ASTMatchersTest, IsOverride) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("class X { virtual int f(); }; "
"class Y : public X { int f(); };",
cxxMethodDecl(isOverride(), hasName("::Y::f"))));
EXPECT_TRUE(notMatches("class X { virtual int f(); }; "
"class Y : public X { int f(); };",
cxxMethodDecl(isOverride(), hasName("::X::f"))));
EXPECT_TRUE(notMatches("class X { int f(); }; "
"class Y : public X { int f(); };",
cxxMethodDecl(isOverride())));
EXPECT_TRUE(notMatches("class X { int f(); int f(int); }; ",
cxxMethodDecl(isOverride())));
EXPECT_TRUE(
matches("template <typename Base> struct Y : Base { void f() override;};",
cxxMethodDecl(isOverride(), hasName("::Y::f"))));
}
TEST_P(ASTMatchersTest, HasArgument_CXXConstructorDecl) {
if (!GetParam().isCXX()) {
return;
}
auto Constructor = traverse(
TK_AsIs,
cxxConstructExpr(hasArgument(0, declRefExpr(to(varDecl(hasName("y")))))));
EXPECT_TRUE(matches(
"class X { public: X(int); }; void x() { int y; X x(y); }", Constructor));
EXPECT_TRUE(
matches("class X { public: X(int); }; void x() { int y; X x = X(y); }",
Constructor));
EXPECT_TRUE(
matches("class X { public: X(int); }; void x() { int y; X x = y; }",
Constructor));
EXPECT_TRUE(notMatches(
"class X { public: X(int); }; void x() { int z; X x(z); }", Constructor));
StatementMatcher WrongIndex =
traverse(TK_AsIs, cxxConstructExpr(hasArgument(
42, declRefExpr(to(varDecl(hasName("y")))))));
EXPECT_TRUE(notMatches(
"class X { public: X(int); }; void x() { int y; X x(y); }", WrongIndex));
}
TEST_P(ASTMatchersTest, ArgumentCountIs_CXXConstructExpr) {
if (!GetParam().isCXX()) {
return;
}
auto Constructor1Arg =
traverse(TK_AsIs, cxxConstructExpr(argumentCountIs(1)));
EXPECT_TRUE(matches("class X { public: X(int); }; void x() { X x(0); }",
Constructor1Arg));
EXPECT_TRUE(matches("class X { public: X(int); }; void x() { X x = X(0); }",
Constructor1Arg));
EXPECT_TRUE(matches("class X { public: X(int); }; void x() { X x = 0; }",
Constructor1Arg));
EXPECT_TRUE(
notMatches("class X { public: X(int, int); }; void x() { X x(0, 0); }",
Constructor1Arg));
}
TEST(ASTMatchersTest, NamesMember_CXXDependentScopeMemberExpr) {
// Member functions:
{
auto Code = "template <typename T> struct S{ void mem(); }; template "
"<typename T> void x() { S<T> s; s.mem(); }";
EXPECT_TRUE(matches(
Code,
cxxDependentScopeMemberExpr(
hasObjectExpression(declRefExpr(hasType(templateSpecializationType(
hasDeclaration(classTemplateDecl(has(cxxRecordDecl(
has(cxxMethodDecl(hasName("mem")).bind("templMem")))))))))),
memberHasSameNameAsBoundNode("templMem"))));
EXPECT_TRUE(
matches(Code, cxxDependentScopeMemberExpr(hasMemberName("mem"))));
}
// Member variables:
{
auto Code = "template <typename T> struct S{ int mem; }; template "
"<typename T> void x() { S<T> s; s.mem; }";
EXPECT_TRUE(
matches(Code, cxxDependentScopeMemberExpr(hasMemberName("mem"))));
EXPECT_TRUE(matches(
Code,
cxxDependentScopeMemberExpr(
hasObjectExpression(declRefExpr(hasType(templateSpecializationType(
hasDeclaration(classTemplateDecl(has(cxxRecordDecl(
has(fieldDecl(hasName("mem")).bind("templMem")))))))))),
memberHasSameNameAsBoundNode("templMem"))));
}
// static member variables:
{
auto Code = "template <typename T> struct S{ static int mem; }; template "
"<typename T> void x() { S<T> s; s.mem; }";
EXPECT_TRUE(
matches(Code, cxxDependentScopeMemberExpr(hasMemberName("mem"))));
EXPECT_TRUE(matches(
Code,
cxxDependentScopeMemberExpr(
hasObjectExpression(declRefExpr(hasType(templateSpecializationType(
hasDeclaration(classTemplateDecl(has(cxxRecordDecl(
has(varDecl(hasName("mem")).bind("templMem")))))))))),
memberHasSameNameAsBoundNode("templMem"))));
}
{
auto Code = R"cpp(
template <typename T>
struct S {
bool operator==(int) const { return true; }
};
template <typename T>
void func(T t) {
S<T> s;
s.operator==(1);
}
)cpp";
EXPECT_TRUE(matches(
Code, cxxDependentScopeMemberExpr(hasMemberName("operator=="))));
}
// other named decl:
{
auto Code = "template <typename T> struct S{ static int mem; }; struct "
"mem{}; template "
"<typename T> void x() { S<T> s; s.mem; }";
EXPECT_TRUE(matches(
Code,
translationUnitDecl(has(cxxRecordDecl(hasName("mem"))),
hasDescendant(cxxDependentScopeMemberExpr()))));
EXPECT_FALSE(matches(
Code,
translationUnitDecl(has(cxxRecordDecl(hasName("mem")).bind("templMem")),
hasDescendant(cxxDependentScopeMemberExpr(
memberHasSameNameAsBoundNode("templMem"))))));
}
}
TEST(ASTMatchersTest, ArgumentCountIs_CXXUnresolvedConstructExpr) {
const auto *Code =
"template <typename T> struct S{}; template <typename T> void "
"x() { auto s = S<T>(); }";
EXPECT_TRUE(matches(Code, cxxUnresolvedConstructExpr(argumentCountIs(0))));
EXPECT_TRUE(notMatches(Code, cxxUnresolvedConstructExpr(argumentCountIs(1))));
}
TEST(ASTMatchersTest, HasArgument_CXXUnresolvedConstructExpr) {
const auto *Code =
"template <typename T> struct S{ S(int){} }; template <typename "
"T> void x() { int y; auto s = S<T>(y); }";
EXPECT_TRUE(matches(Code, cxxUnresolvedConstructExpr(hasArgument(
0, declRefExpr(to(varDecl(hasName("y"))))))));
EXPECT_TRUE(
notMatches(Code, cxxUnresolvedConstructExpr(hasArgument(
0, declRefExpr(to(varDecl(hasName("x"))))))));
}
TEST_P(ASTMatchersTest, IsListInitialization) {
if (!GetParam().isCXX11OrLater()) {
return;
}
auto ConstructorListInit =
traverse(TK_AsIs, varDecl(has(cxxConstructExpr(isListInitialization()))));
EXPECT_TRUE(matches("class X { public: X(int); }; void x() { X x{0}; }",
ConstructorListInit));
EXPECT_FALSE(matches("class X { public: X(int); }; void x() { X x(0); }",
ConstructorListInit));
}
TEST_P(ASTMatchersTest, IsImplicit_CXXConstructorDecl) {
if (!GetParam().isCXX()) {
return;
}
// This one doesn't match because the constructor is not added by the
// compiler (it is not needed).
EXPECT_TRUE(notMatches("class Foo { };", cxxConstructorDecl(isImplicit())));
// The compiler added the implicit default constructor.
EXPECT_TRUE(matches("class Foo { }; Foo* f = new Foo();",
cxxConstructorDecl(isImplicit())));
EXPECT_TRUE(matches("class Foo { Foo(){} };",
cxxConstructorDecl(unless(isImplicit()))));
// The compiler added an implicit assignment operator.
EXPECT_TRUE(matches("struct A { int x; } a = {0}, b = a; void f() { a = b; }",
cxxMethodDecl(isImplicit(), hasName("operator="))));
}
TEST_P(ASTMatchersTest, IsExplicit_CXXConstructorDecl) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("struct S { explicit S(int); };",
cxxConstructorDecl(isExplicit())));
EXPECT_TRUE(
notMatches("struct S { S(int); };", cxxConstructorDecl(isExplicit())));
}
TEST_P(ASTMatchersTest, IsExplicit_CXXConstructorDecl_CXX20) {
if (!GetParam().isCXX20OrLater()) {
return;
}
EXPECT_TRUE(notMatches("template<bool b> struct S { explicit(b) S(int);};",
cxxConstructorDecl(isExplicit())));
EXPECT_TRUE(matches("struct S { explicit(true) S(int);};",
cxxConstructorDecl(isExplicit())));
EXPECT_TRUE(notMatches("struct S { explicit(false) S(int);};",
cxxConstructorDecl(isExplicit())));
}
TEST_P(ASTMatchersTest, IsExplicit_CXXDeductionGuideDecl) {
if (!GetParam().isCXX17OrLater()) {
return;
}
EXPECT_TRUE(notMatches("template<typename T> struct S { S(int);};"
"S(int) -> S<int>;",
cxxDeductionGuideDecl(isExplicit())));
EXPECT_TRUE(matches("template<typename T> struct S { S(int);};"
"explicit S(int) -> S<int>;",
cxxDeductionGuideDecl(isExplicit())));
}
TEST_P(ASTMatchersTest, IsExplicit_CXXDeductionGuideDecl_CXX20) {
if (!GetParam().isCXX20OrLater()) {
return;
}
EXPECT_TRUE(matches("template<typename T> struct S { S(int);};"
"explicit(true) S(int) -> S<int>;",
cxxDeductionGuideDecl(isExplicit())));
EXPECT_TRUE(notMatches("template<typename T> struct S { S(int);};"
"explicit(false) S(int) -> S<int>;",
cxxDeductionGuideDecl(isExplicit())));
EXPECT_TRUE(
notMatches("template<typename T> struct S { S(int);};"
"template<bool b = true> explicit(b) S(int) -> S<int>;",
cxxDeductionGuideDecl(isExplicit())));
}
TEST_P(ASTMatchersTest, CXXConstructorDecl_Kinds) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
matches("struct S { S(); };", cxxConstructorDecl(isDefaultConstructor(),
unless(isImplicit()))));
EXPECT_TRUE(notMatches(
"struct S { S(); };",
cxxConstructorDecl(isCopyConstructor(), unless(isImplicit()))));
EXPECT_TRUE(notMatches(
"struct S { S(); };",
cxxConstructorDecl(isMoveConstructor(), unless(isImplicit()))));
EXPECT_TRUE(notMatches(
"struct S { S(const S&); };",
cxxConstructorDecl(isDefaultConstructor(), unless(isImplicit()))));
EXPECT_TRUE(
matches("struct S { S(const S&); };",
cxxConstructorDecl(isCopyConstructor(), unless(isImplicit()))));
EXPECT_TRUE(notMatches(
"struct S { S(const S&); };",
cxxConstructorDecl(isMoveConstructor(), unless(isImplicit()))));
EXPECT_TRUE(notMatches(
"struct S { S(S&&); };",
cxxConstructorDecl(isDefaultConstructor(), unless(isImplicit()))));
EXPECT_TRUE(notMatches(
"struct S { S(S&&); };",
cxxConstructorDecl(isCopyConstructor(), unless(isImplicit()))));
EXPECT_TRUE(
matches("struct S { S(S&&); };",
cxxConstructorDecl(isMoveConstructor(), unless(isImplicit()))));
}
TEST_P(ASTMatchersTest, IsUserProvided) {
if (!GetParam().isCXX11OrLater()) {
return;
}
EXPECT_TRUE(notMatches("struct S { int X = 0; };",
cxxConstructorDecl(isUserProvided())));
EXPECT_TRUE(notMatches("struct S { S() = default; };",
cxxConstructorDecl(isUserProvided())));
EXPECT_TRUE(notMatches("struct S { S() = delete; };",
cxxConstructorDecl(isUserProvided())));
EXPECT_TRUE(
matches("struct S { S(); };", cxxConstructorDecl(isUserProvided())));
EXPECT_TRUE(matches("struct S { S(); }; S::S(){}",
cxxConstructorDecl(isUserProvided())));
}
TEST_P(ASTMatchersTest, IsDelegatingConstructor) {
if (!GetParam().isCXX11OrLater()) {
return;
}
EXPECT_TRUE(notMatches("struct S { S(); S(int); int X; };",
cxxConstructorDecl(isDelegatingConstructor())));
EXPECT_TRUE(notMatches("struct S { S(){} S(int X) : X(X) {} int X; };",
cxxConstructorDecl(isDelegatingConstructor())));
EXPECT_TRUE(matches(
"struct S { S() : S(0) {} S(int X) : X(X) {} int X; };",
cxxConstructorDecl(isDelegatingConstructor(), parameterCountIs(0))));
EXPECT_TRUE(matches(
"struct S { S(); S(int X); int X; }; S::S(int X) : S() {}",
cxxConstructorDecl(isDelegatingConstructor(), parameterCountIs(1))));
}
TEST_P(ASTMatchersTest, HasSize) {
StatementMatcher Literal = stringLiteral(hasSize(4));
EXPECT_TRUE(matches("const char *s = \"abcd\";", Literal));
// with escaped characters
EXPECT_TRUE(matches("const char *s = \"\x05\x06\x07\x08\";", Literal));
// no matching, too small
EXPECT_TRUE(notMatches("const char *s = \"ab\";", Literal));
}
TEST_P(ASTMatchersTest, HasSize_CXX) {
if (!GetParam().isCXX()) {
// FIXME: Fix this test to also work in non-C++ language modes.
return;
}
StatementMatcher Literal = stringLiteral(hasSize(4));
// wide string
EXPECT_TRUE(matches("const wchar_t *s = L\"abcd\";", Literal));
}
TEST_P(ASTMatchersTest, HasName_MatchesNamespaces) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("namespace a { namespace b { class C; } }",
recordDecl(hasName("a::b::C"))));
EXPECT_TRUE(matches("namespace a { namespace b { class C; } }",
recordDecl(hasName("::a::b::C"))));
EXPECT_TRUE(matches("namespace a { namespace b { class C; } }",
recordDecl(hasName("b::C"))));
EXPECT_TRUE(matches("namespace a { namespace b { class C; } }",
recordDecl(hasName("C"))));
EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }",
recordDecl(hasName("c::b::C"))));
EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }",
recordDecl(hasName("a::c::C"))));
EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }",
recordDecl(hasName("a::b::A"))));
EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }",
recordDecl(hasName("::C"))));
EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }",
recordDecl(hasName("::b::C"))));
EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }",
recordDecl(hasName("z::a::b::C"))));
EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }",
recordDecl(hasName("a+b::C"))));
EXPECT_TRUE(notMatches("namespace a { namespace b { class AC; } }",
recordDecl(hasName("C"))));
}
TEST_P(ASTMatchersTest, HasName_MatchesOuterClasses) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("class A { class B { class C; }; };",
recordDecl(hasName("A::B::C"))));
EXPECT_TRUE(matches("class A { class B { class C; }; };",
recordDecl(hasName("::A::B::C"))));
EXPECT_TRUE(matches("class A { class B { class C; }; };",
recordDecl(hasName("B::C"))));
EXPECT_TRUE(
matches("class A { class B { class C; }; };", recordDecl(hasName("C"))));
EXPECT_TRUE(notMatches("class A { class B { class C; }; };",
recordDecl(hasName("c::B::C"))));
EXPECT_TRUE(notMatches("class A { class B { class C; }; };",
recordDecl(hasName("A::c::C"))));
EXPECT_TRUE(notMatches("class A { class B { class C; }; };",
recordDecl(hasName("A::B::A"))));
EXPECT_TRUE(notMatches("class A { class B { class C; }; };",
recordDecl(hasName("::C"))));
EXPECT_TRUE(notMatches("class A { class B { class C; }; };",
recordDecl(hasName("::B::C"))));
EXPECT_TRUE(notMatches("class A { class B { class C; }; };",
recordDecl(hasName("z::A::B::C"))));
EXPECT_TRUE(notMatches("class A { class B { class C; }; };",
recordDecl(hasName("A+B::C"))));
}
TEST_P(ASTMatchersTest, HasName_MatchesInlinedNamespaces) {
if (!GetParam().isCXX()) {
return;
}
StringRef code = "namespace a { inline namespace b { class C; } }";
EXPECT_TRUE(matches(code, recordDecl(hasName("a::b::C"))));
EXPECT_TRUE(matches(code, recordDecl(hasName("a::C"))));
EXPECT_TRUE(matches(code, recordDecl(hasName("::a::b::C"))));
EXPECT_TRUE(matches(code, recordDecl(hasName("::a::C"))));
}
TEST_P(ASTMatchersTest, HasName_MatchesAnonymousNamespaces) {
if (!GetParam().isCXX()) {
return;
}
StringRef code = "namespace a { namespace { class C; } }";
EXPECT_TRUE(
matches(code, recordDecl(hasName("a::(anonymous namespace)::C"))));
EXPECT_TRUE(matches(code, recordDecl(hasName("a::C"))));
EXPECT_TRUE(
matches(code, recordDecl(hasName("::a::(anonymous namespace)::C"))));
EXPECT_TRUE(matches(code, recordDecl(hasName("::a::C"))));
}
TEST_P(ASTMatchersTest, HasName_MatchesAnonymousOuterClasses) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("class A { class { class C; } x; };",
recordDecl(hasName("A::(anonymous class)::C"))));
EXPECT_TRUE(matches("class A { class { class C; } x; };",
recordDecl(hasName("::A::(anonymous class)::C"))));
EXPECT_FALSE(matches("class A { class { class C; } x; };",
recordDecl(hasName("::A::C"))));
EXPECT_TRUE(matches("class A { struct { class C; } x; };",
recordDecl(hasName("A::(anonymous struct)::C"))));
EXPECT_TRUE(matches("class A { struct { class C; } x; };",
recordDecl(hasName("::A::(anonymous struct)::C"))));
EXPECT_FALSE(matches("class A { struct { class C; } x; };",
recordDecl(hasName("::A::C"))));
}
TEST_P(ASTMatchersTest, HasName_MatchesFunctionScope) {
if (!GetParam().isCXX()) {
return;
}
StringRef code =
"namespace a { void F(int a) { struct S { int m; }; int i; } }";
EXPECT_TRUE(matches(code, varDecl(hasName("i"))));
EXPECT_FALSE(matches(code, varDecl(hasName("F()::i"))));
EXPECT_TRUE(matches(code, fieldDecl(hasName("m"))));
EXPECT_TRUE(matches(code, fieldDecl(hasName("S::m"))));
EXPECT_TRUE(matches(code, fieldDecl(hasName("F(int)::S::m"))));
EXPECT_TRUE(matches(code, fieldDecl(hasName("a::F(int)::S::m"))));
EXPECT_TRUE(matches(code, fieldDecl(hasName("::a::F(int)::S::m"))));
}
TEST_P(ASTMatchersTest, HasName_QualifiedStringMatchesThroughLinkage) {
if (!GetParam().isCXX()) {
return;
}
// https://bugs.llvm.org/show_bug.cgi?id=42193
StringRef code = R"cpp(namespace foo { extern "C" void test(); })cpp";
EXPECT_TRUE(matches(code, functionDecl(hasName("test"))));
EXPECT_TRUE(matches(code, functionDecl(hasName("foo::test"))));
EXPECT_TRUE(matches(code, functionDecl(hasName("::foo::test"))));
EXPECT_TRUE(notMatches(code, functionDecl(hasName("::test"))));
code = R"cpp(namespace foo { extern "C" { void test(); } })cpp";
EXPECT_TRUE(matches(code, functionDecl(hasName("test"))));
EXPECT_TRUE(matches(code, functionDecl(hasName("foo::test"))));
EXPECT_TRUE(matches(code, functionDecl(hasName("::foo::test"))));
EXPECT_TRUE(notMatches(code, functionDecl(hasName("::test"))));
}
TEST_P(ASTMatchersTest, HasAnyName) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `hasAnyName()` that does not depend on C++.
return;
}
StringRef Code = "namespace a { namespace b { class C; } }";
EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("XX", "a::b::C"))));
EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("a::b::C", "XX"))));
EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("XX::C", "a::b::C"))));
EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("XX", "C"))));
EXPECT_TRUE(notMatches(Code, recordDecl(hasAnyName("::C", "::b::C"))));
EXPECT_TRUE(
matches(Code, recordDecl(hasAnyName("::C", "::b::C", "::a::b::C"))));
std::vector<StringRef> Names = {"::C", "::b::C", "::a::b::C"};
EXPECT_TRUE(matches(Code, recordDecl(hasAnyName(Names))));
}
TEST_P(ASTMatchersTest, IsDefinition) {
DeclarationMatcher DefinitionOfClassA =
recordDecl(hasName("A"), isDefinition());
EXPECT_TRUE(matches("struct A {};", DefinitionOfClassA));
EXPECT_TRUE(notMatches("struct A;", DefinitionOfClassA));
DeclarationMatcher DefinitionOfVariableA =
varDecl(hasName("a"), isDefinition());
EXPECT_TRUE(matches("int a;", DefinitionOfVariableA));
EXPECT_TRUE(notMatches("extern int a;", DefinitionOfVariableA));
}
TEST_P(ASTMatchersTest, IsDefinition_CXX) {
if (!GetParam().isCXX()) {
return;
}
DeclarationMatcher DefinitionOfMethodA =
cxxMethodDecl(hasName("a"), isDefinition());
EXPECT_TRUE(matches("class A { void a() {} };", DefinitionOfMethodA));
EXPECT_TRUE(notMatches("class A { void a(); };", DefinitionOfMethodA));
DeclarationMatcher DefinitionOfObjCMethodA =
objcMethodDecl(hasName("a"), isDefinition());
EXPECT_TRUE(matchesObjC("@interface A @end "
"@implementation A; -(void)a {} @end",
DefinitionOfObjCMethodA));
EXPECT_TRUE(
notMatchesObjC("@interface A; - (void)a; @end", DefinitionOfObjCMethodA));
}
TEST_P(ASTMatchersTest, HandlesNullQualTypes) {
if (!GetParam().isCXX()) {
// FIXME: Add an equivalent test that does not depend on C++.
return;
}
// FIXME: Add a Type matcher so we can replace uses of this
// variable with Type(True())
const TypeMatcher AnyType = anything();
// We don't really care whether this matcher succeeds; we're testing that
// it completes without crashing.
EXPECT_TRUE(matches(
"struct A { };"
"template <typename T>"
"void f(T t) {"
" T local_t(t /* this becomes a null QualType in the AST */);"
"}"
"void g() {"
" f(0);"
"}",
expr(hasType(TypeMatcher(anyOf(TypeMatcher(hasDeclaration(anything())),
pointsTo(AnyType), references(AnyType)
// Other QualType matchers should go here.
))))));
}
TEST_P(ASTMatchersTest, ObjCIvarRefExpr) {
StringRef ObjCString =
"@interface A @end "
"@implementation A { A *x; } - (void) func { x = 0; } @end";
EXPECT_TRUE(matchesObjC(ObjCString, objcIvarRefExpr()));
EXPECT_TRUE(matchesObjC(
ObjCString, objcIvarRefExpr(hasDeclaration(namedDecl(hasName("x"))))));
EXPECT_FALSE(matchesObjC(
ObjCString, objcIvarRefExpr(hasDeclaration(namedDecl(hasName("y"))))));
}
TEST_P(ASTMatchersTest, BlockExpr) {
EXPECT_TRUE(matchesObjC("void f() { ^{}(); }", blockExpr()));
}
TEST_P(ASTMatchersTest,
StatementCountIs_FindsNoStatementsInAnEmptyCompoundStatement) {
EXPECT_TRUE(matches("void f() { }", compoundStmt(statementCountIs(0))));
EXPECT_TRUE(notMatches("void f() {}", compoundStmt(statementCountIs(1))));
}
TEST_P(ASTMatchersTest, StatementCountIs_AppearsToMatchOnlyOneCount) {
EXPECT_TRUE(matches("void f() { 1; }", compoundStmt(statementCountIs(1))));
EXPECT_TRUE(notMatches("void f() { 1; }", compoundStmt(statementCountIs(0))));
EXPECT_TRUE(notMatches("void f() { 1; }", compoundStmt(statementCountIs(2))));
}
TEST_P(ASTMatchersTest, StatementCountIs_WorksWithMultipleStatements) {
EXPECT_TRUE(
matches("void f() { 1; 2; 3; }", compoundStmt(statementCountIs(3))));
}
TEST_P(ASTMatchersTest, StatementCountIs_WorksWithNestedCompoundStatements) {
EXPECT_TRUE(matches("void f() { { 1; } { 1; 2; 3; 4; } }",
compoundStmt(statementCountIs(1))));
EXPECT_TRUE(matches("void f() { { 1; } { 1; 2; 3; 4; } }",
compoundStmt(statementCountIs(2))));
EXPECT_TRUE(notMatches("void f() { { 1; } { 1; 2; 3; 4; } }",
compoundStmt(statementCountIs(3))));
EXPECT_TRUE(matches("void f() { { 1; } { 1; 2; 3; 4; } }",
compoundStmt(statementCountIs(4))));
}
TEST_P(ASTMatchersTest, Member_WorksInSimplestCase) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `member()` that does not depend on C++.
return;
}
EXPECT_TRUE(matches("struct { int first; } s; int i(s.first);",
memberExpr(member(hasName("first")))));
}
TEST_P(ASTMatchersTest, Member_DoesNotMatchTheBaseExpression) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `member()` that does not depend on C++.
return;
}
// Don't pick out the wrong part of the member expression, this should
// be checking the member (name) only.
EXPECT_TRUE(notMatches("struct { int i; } first; int i(first.i);",
memberExpr(member(hasName("first")))));
}
TEST_P(ASTMatchersTest, Member_MatchesInMemberFunctionCall) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("void f() {"
" struct { void first() {}; } s;"
" s.first();"
"};",
memberExpr(member(hasName("first")))));
}
TEST_P(ASTMatchersTest, FieldDecl) {
EXPECT_TRUE(
matches("struct A { int i; }; void f() { struct A a; a.i = 2; }",
memberExpr(hasDeclaration(fieldDecl(hasType(isInteger()))))));
EXPECT_TRUE(
notMatches("struct A { float f; }; void f() { struct A a; a.f = 2.0f; }",
memberExpr(hasDeclaration(fieldDecl(hasType(isInteger()))))));
}
TEST_P(ASTMatchersTest, IsBitField) {
EXPECT_TRUE(matches("struct C { int a : 2; int b; };",
fieldDecl(isBitField(), hasName("a"))));
EXPECT_TRUE(notMatches("struct C { int a : 2; int b; };",
fieldDecl(isBitField(), hasName("b"))));
EXPECT_TRUE(matches("struct C { int a : 2; int b : 4; };",
fieldDecl(isBitField(), hasBitWidth(2), hasName("a"))));
}
TEST_P(ASTMatchersTest, HasInClassInitializer) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
matches("class C { int a = 2; int b; };",
fieldDecl(hasInClassInitializer(integerLiteral(equals(2))),
hasName("a"))));
EXPECT_TRUE(
notMatches("class C { int a = 2; int b; };",
fieldDecl(hasInClassInitializer(anything()), hasName("b"))));
}
TEST_P(ASTMatchersTest, IsPublic_IsProtected_IsPrivate) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
matches("struct A { int i; };", fieldDecl(isPublic(), hasName("i"))));
EXPECT_TRUE(notMatches("struct A { int i; };",
fieldDecl(isProtected(), hasName("i"))));
EXPECT_TRUE(
notMatches("struct A { int i; };", fieldDecl(isPrivate(), hasName("i"))));
EXPECT_TRUE(
notMatches("class A { int i; };", fieldDecl(isPublic(), hasName("i"))));
EXPECT_TRUE(notMatches("class A { int i; };",
fieldDecl(isProtected(), hasName("i"))));
EXPECT_TRUE(
matches("class A { int i; };", fieldDecl(isPrivate(), hasName("i"))));
EXPECT_TRUE(notMatches("class A { protected: int i; };",
fieldDecl(isPublic(), hasName("i"))));
EXPECT_TRUE(matches("class A { protected: int i; };",
fieldDecl(isProtected(), hasName("i"))));
EXPECT_TRUE(notMatches("class A { protected: int i; };",
fieldDecl(isPrivate(), hasName("i"))));
// Non-member decls have the AccessSpecifier AS_none and thus aren't matched.
EXPECT_TRUE(notMatches("int i;", varDecl(isPublic(), hasName("i"))));
EXPECT_TRUE(notMatches("int i;", varDecl(isProtected(), hasName("i"))));
EXPECT_TRUE(notMatches("int i;", varDecl(isPrivate(), hasName("i"))));
}
TEST_P(ASTMatchersTest,
HasDynamicExceptionSpec_MatchesDynamicExceptionSpecifications) {
if (!GetParam().supportsCXXDynamicExceptionSpecification()) {
return;
}
EXPECT_TRUE(notMatches("void f();", functionDecl(hasDynamicExceptionSpec())));
EXPECT_TRUE(
matches("void j() throw();", functionDecl(hasDynamicExceptionSpec())));
EXPECT_TRUE(
matches("void k() throw(int);", functionDecl(hasDynamicExceptionSpec())));
EXPECT_TRUE(
matches("void l() throw(...);", functionDecl(hasDynamicExceptionSpec())));
EXPECT_TRUE(
notMatches("void f();", functionProtoType(hasDynamicExceptionSpec())));
EXPECT_TRUE(matches("void j() throw();",
functionProtoType(hasDynamicExceptionSpec())));
EXPECT_TRUE(matches("void k() throw(int);",
functionProtoType(hasDynamicExceptionSpec())));
EXPECT_TRUE(matches("void l() throw(...);",
functionProtoType(hasDynamicExceptionSpec())));
}
TEST_P(ASTMatchersTest,
HasDynamicExceptionSpec_MatchesDynamicExceptionSpecifications_CXX11) {
if (!GetParam().isCXX11OrLater()) {
return;
}
EXPECT_TRUE(notMatches("void g() noexcept;",
functionDecl(hasDynamicExceptionSpec())));
EXPECT_TRUE(notMatches("void h() noexcept(true);",
functionDecl(hasDynamicExceptionSpec())));
EXPECT_TRUE(notMatches("void i() noexcept(false);",
functionDecl(hasDynamicExceptionSpec())));
EXPECT_TRUE(notMatches("void g() noexcept;",
functionProtoType(hasDynamicExceptionSpec())));
EXPECT_TRUE(notMatches("void h() noexcept(true);",
functionProtoType(hasDynamicExceptionSpec())));
EXPECT_TRUE(notMatches("void i() noexcept(false);",
functionProtoType(hasDynamicExceptionSpec())));
}
TEST_P(ASTMatchersTest, HasObjectExpression_DoesNotMatchMember) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches(
"class X {}; struct Z { X m; }; void f(Z z) { z.m; }",
memberExpr(hasObjectExpression(hasType(recordDecl(hasName("X")))))));
}
TEST_P(ASTMatchersTest, HasObjectExpression_MatchesBaseOfVariable) {
EXPECT_TRUE(matches(
"struct X { int m; }; void f(struct X x) { x.m; }",
memberExpr(hasObjectExpression(hasType(recordDecl(hasName("X")))))));
EXPECT_TRUE(matches("struct X { int m; }; void f(struct X* x) { x->m; }",
memberExpr(hasObjectExpression(
hasType(pointsTo(recordDecl(hasName("X"))))))));
}
TEST_P(ASTMatchersTest, HasObjectExpression_MatchesBaseOfVariable_CXX) {
if (!GetParam().isCXX() || GetParam().hasDelayedTemplateParsing()) {
// FIXME: Fix this test to work with delayed template parsing.
return;
}
EXPECT_TRUE(matches("template <class T> struct X { void f() { T t; t.m; } };",
cxxDependentScopeMemberExpr(hasObjectExpression(
declRefExpr(to(namedDecl(hasName("t"))))))));
EXPECT_TRUE(
matches("template <class T> struct X { void f() { T t; t->m; } };",
cxxDependentScopeMemberExpr(hasObjectExpression(
declRefExpr(to(namedDecl(hasName("t"))))))));
}
TEST_P(ASTMatchersTest, HasObjectExpression_MatchesBaseOfMemberFunc) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches(
"struct X { void f(); }; void g(X x) { x.f(); }",
memberExpr(hasObjectExpression(hasType(recordDecl(hasName("X")))))));
}
TEST_P(ASTMatchersTest, HasObjectExpression_MatchesBaseOfMemberFunc_Template) {
if (!GetParam().isCXX() || GetParam().hasDelayedTemplateParsing()) {
// FIXME: Fix this test to work with delayed template parsing.
return;
}
EXPECT_TRUE(matches("struct X { template <class T> void f(); };"
"template <class T> void g(X x) { x.f<T>(); }",
unresolvedMemberExpr(hasObjectExpression(
hasType(recordDecl(hasName("X")))))));
EXPECT_TRUE(matches("template <class T> void f(T t) { t.g(); }",
cxxDependentScopeMemberExpr(hasObjectExpression(
declRefExpr(to(namedDecl(hasName("t"))))))));
}
TEST_P(ASTMatchersTest, HasObjectExpression_ImplicitlyFormedMemberExpression) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("class X {}; struct S { X m; void f() { this->m; } };",
memberExpr(hasObjectExpression(
hasType(pointsTo(recordDecl(hasName("S"))))))));
EXPECT_TRUE(matches("class X {}; struct S { X m; void f() { m; } };",
memberExpr(hasObjectExpression(
hasType(pointsTo(recordDecl(hasName("S"))))))));
}
TEST_P(ASTMatchersTest, FieldDecl_DoesNotMatchNonFieldMembers) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("class X { void m(); };", fieldDecl(hasName("m"))));
EXPECT_TRUE(notMatches("class X { class m {}; };", fieldDecl(hasName("m"))));
EXPECT_TRUE(notMatches("class X { enum { m }; };", fieldDecl(hasName("m"))));
EXPECT_TRUE(notMatches("class X { enum m {}; };", fieldDecl(hasName("m"))));
}
TEST_P(ASTMatchersTest, FieldDecl_MatchesField) {
EXPECT_TRUE(matches("struct X { int m; };", fieldDecl(hasName("m"))));
}
TEST_P(ASTMatchersTest, IsVolatileQualified) {
EXPECT_TRUE(
matches("volatile int i = 42;", varDecl(hasType(isVolatileQualified()))));
EXPECT_TRUE(
notMatches("volatile int *i;", varDecl(hasType(isVolatileQualified()))));
EXPECT_TRUE(matches("typedef volatile int v_int; v_int i = 42;",
varDecl(hasType(isVolatileQualified()))));
}
TEST_P(ASTMatchersTest, IsConstQualified_MatchesConstInt) {
EXPECT_TRUE(
matches("const int i = 42;", varDecl(hasType(isConstQualified()))));
}
TEST_P(ASTMatchersTest, IsConstQualified_MatchesConstPointer) {
EXPECT_TRUE(matches("int i = 42; int* const p = &i;",
varDecl(hasType(isConstQualified()))));
}
TEST_P(ASTMatchersTest, IsConstQualified_MatchesThroughTypedef) {
EXPECT_TRUE(matches("typedef const int const_int; const_int i = 42;",
varDecl(hasType(isConstQualified()))));
EXPECT_TRUE(matches("typedef int* int_ptr; const int_ptr p = ((int*)0);",
varDecl(hasType(isConstQualified()))));
}
TEST_P(ASTMatchersTest, IsConstQualified_DoesNotMatchInappropriately) {
EXPECT_TRUE(notMatches("typedef int nonconst_int; nonconst_int i = 42;",
varDecl(hasType(isConstQualified()))));
EXPECT_TRUE(
notMatches("int const* p;", varDecl(hasType(isConstQualified()))));
}
TEST_P(ASTMatchersTest, DeclCountIs_DeclCountIsCorrect) {
EXPECT_TRUE(matches("void f() {int i,j;}", declStmt(declCountIs(2))));
EXPECT_TRUE(
notMatches("void f() {int i,j; int k;}", declStmt(declCountIs(3))));
EXPECT_TRUE(
notMatches("void f() {int i,j, k, l;}", declStmt(declCountIs(3))));
}
TEST_P(ASTMatchersTest, EachOf_TriggersForEachMatch) {
EXPECT_TRUE(matchAndVerifyResultTrue(
"class A { int a; int b; };",
recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")),
has(fieldDecl(hasName("b")).bind("v")))),
std::make_unique<VerifyIdIsBoundTo<FieldDecl>>("v", 2)));
}
TEST_P(ASTMatchersTest, EachOf_BehavesLikeAnyOfUnlessBothMatch) {
EXPECT_TRUE(matchAndVerifyResultTrue(
"struct A { int a; int c; };",
recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")),
has(fieldDecl(hasName("b")).bind("v")))),
std::make_unique<VerifyIdIsBoundTo<FieldDecl>>("v", 1)));
EXPECT_TRUE(matchAndVerifyResultTrue(
"struct A { int c; int b; };",
recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")),
has(fieldDecl(hasName("b")).bind("v")))),
std::make_unique<VerifyIdIsBoundTo<FieldDecl>>("v", 1)));
EXPECT_TRUE(
notMatches("struct A { int c; int d; };",
recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")),
has(fieldDecl(hasName("b")).bind("v"))))));
}
TEST_P(ASTMatchersTest, Optionally_SubmatchersDoNotMatch) {
EXPECT_TRUE(matchAndVerifyResultFalse(
"class A { int a; int b; };",
recordDecl(optionally(has(fieldDecl(hasName("c")).bind("c")))),
std::make_unique<VerifyIdIsBoundTo<FieldDecl>>("c")));
}
// Regression test.
TEST_P(ASTMatchersTest, Optionally_SubmatchersDoNotMatchButPreserveBindings) {
StringRef Code = "class A { int a; int b; };";
auto Matcher = recordDecl(decl().bind("decl"),
optionally(has(fieldDecl(hasName("c")).bind("v"))));
// "decl" is still bound.
EXPECT_TRUE(matchAndVerifyResultTrue(
Code, Matcher, std::make_unique<VerifyIdIsBoundTo<RecordDecl>>("decl")));
// "v" is not bound, but the match still suceeded.
EXPECT_TRUE(matchAndVerifyResultFalse(
Code, Matcher, std::make_unique<VerifyIdIsBoundTo<FieldDecl>>("v")));
}
TEST_P(ASTMatchersTest, Optionally_SubmatchersMatch) {
EXPECT_TRUE(matchAndVerifyResultTrue(
"class A { int a; int c; };",
recordDecl(optionally(has(fieldDecl(hasName("a")).bind("v")))),
std::make_unique<VerifyIdIsBoundTo<FieldDecl>>("v")));
}
TEST_P(ASTMatchersTest,
IsTemplateInstantiation_MatchesImplicitClassTemplateInstantiation) {
if (!GetParam().isCXX()) {
return;
}
// Make sure that we can both match the class by name (::X) and by the type
// the template was instantiated with (via a field).
EXPECT_TRUE(
matches("template <typename T> class X {}; class A {}; X<A> x;",
cxxRecordDecl(hasName("::X"), isTemplateInstantiation())));
EXPECT_TRUE(matches(
"template <typename T> class X { T t; }; class A {}; X<A> x;",
cxxRecordDecl(
isTemplateInstantiation(),
hasDescendant(fieldDecl(hasType(recordDecl(hasName("A"))))))));
}
TEST_P(ASTMatchersTest,
IsTemplateInstantiation_MatchesImplicitFunctionTemplateInstantiation) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches(
"template <typename T> void f(T t) {} class A {}; void g() { f(A()); }",
functionDecl(hasParameter(0, hasType(recordDecl(hasName("A")))),
isTemplateInstantiation())));
}
TEST_P(ASTMatchersTest,
IsTemplateInstantiation_MatchesExplicitClassTemplateInstantiation) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("template <typename T> class X { T t; }; class A {};"
"template class X<A>;",
cxxRecordDecl(isTemplateInstantiation(),
hasDescendant(fieldDecl(
hasType(recordDecl(hasName("A"))))))));
// Make sure that we match the instantiation instead of the template
// definition by checking whether the member function is present.
EXPECT_TRUE(
matches("template <typename T> class X { void f() { T t; } };"
"extern template class X<int>;",
cxxRecordDecl(isTemplateInstantiation(),
unless(hasDescendant(varDecl(hasName("t")))))));
}
TEST_P(
ASTMatchersTest,
IsTemplateInstantiation_MatchesInstantiationOfPartiallySpecializedClassTemplate) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
matches("template <typename T> class X {};"
"template <typename T> class X<T*> {}; class A {}; X<A*> x;",
cxxRecordDecl(hasName("::X"), isTemplateInstantiation())));
}
TEST_P(
ASTMatchersTest,
IsTemplateInstantiation_MatchesInstantiationOfClassTemplateNestedInNonTemplate) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
matches("class A {};"
"class X {"
" template <typename U> class Y { U u; };"
" Y<A> y;"
"};",
cxxRecordDecl(hasName("::X::Y"), isTemplateInstantiation())));
}
TEST_P(
ASTMatchersTest,
IsTemplateInstantiation_DoesNotMatchInstantiationsInsideOfInstantiation) {
if (!GetParam().isCXX()) {
return;
}
// FIXME: Figure out whether this makes sense. It doesn't affect the
// normal use case as long as the uppermost instantiation always is marked
// as template instantiation, but it might be confusing as a predicate.
EXPECT_TRUE(matches(
"class A {};"
"template <typename T> class X {"
" template <typename U> class Y { U u; };"
" Y<T> y;"
"}; X<A> x;",
cxxRecordDecl(hasName("::X<A>::Y"), unless(isTemplateInstantiation()))));
}
TEST_P(
ASTMatchersTest,
IsTemplateInstantiation_DoesNotMatchExplicitClassTemplateSpecialization) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
notMatches("template <typename T> class X {}; class A {};"
"template <> class X<A> {}; X<A> x;",
cxxRecordDecl(hasName("::X"), isTemplateInstantiation())));
}
TEST_P(ASTMatchersTest, IsTemplateInstantiation_DoesNotMatchNonTemplate) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("class A {}; class Y { A a; };",
cxxRecordDecl(isTemplateInstantiation())));
}
TEST_P(ASTMatchersTest, IsInstantiated_MatchesInstantiation) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
matches("template<typename T> class A { T i; }; class Y { A<int> a; };",
cxxRecordDecl(isInstantiated())));
}
TEST_P(ASTMatchersTest, IsInstantiated_NotMatchesDefinition) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("template<typename T> class A { T i; };",
cxxRecordDecl(isInstantiated())));
}
TEST_P(ASTMatchersTest, IsInTemplateInstantiation_MatchesInstantiationStmt) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("template<typename T> struct A { A() { T i; } };"
"class Y { A<int> a; }; Y y;",
declStmt(isInTemplateInstantiation())));
}
TEST_P(ASTMatchersTest, IsInTemplateInstantiation_NotMatchesDefinitionStmt) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("template<typename T> struct A { void x() { T i; } };",
declStmt(isInTemplateInstantiation())));
}
TEST_P(ASTMatchersTest, IsInstantiated_MatchesFunctionInstantiation) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
matches("template<typename T> void A(T t) { T i; } void x() { A(0); }",
functionDecl(isInstantiated())));
}
TEST_P(ASTMatchersTest, IsInstantiated_NotMatchesFunctionDefinition) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("template<typename T> void A(T t) { T i; }",
varDecl(isInstantiated())));
}
TEST_P(ASTMatchersTest,
IsInTemplateInstantiation_MatchesFunctionInstantiationStmt) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
matches("template<typename T> void A(T t) { T i; } void x() { A(0); }",
declStmt(isInTemplateInstantiation())));
}
TEST_P(ASTMatchersTest,
IsInTemplateInstantiation_NotMatchesFunctionDefinitionStmt) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("template<typename T> void A(T t) { T i; }",
declStmt(isInTemplateInstantiation())));
}
TEST_P(ASTMatchersTest, IsInTemplateInstantiation_Sharing) {
if (!GetParam().isCXX()) {
return;
}
auto Matcher = binaryOperator(unless(isInTemplateInstantiation()));
// FIXME: Node sharing is an implementation detail, exposing it is ugly
// and makes the matcher behave in non-obvious ways.
EXPECT_TRUE(notMatches(
"int j; template<typename T> void A(T t) { j += 42; } void x() { A(0); }",
Matcher));
EXPECT_TRUE(matches(
"int j; template<typename T> void A(T t) { j += t; } void x() { A(0); }",
Matcher));
}
TEST_P(ASTMatchersTest, IsInstantiationDependent_MatchesNonValueTypeDependent) {
if (!GetParam().isCXX() || GetParam().hasDelayedTemplateParsing()) {
// FIXME: Fix this test to work with delayed template parsing.
return;
}
EXPECT_TRUE(matches(
"template<typename T> void f() { (void) sizeof(sizeof(T() + T())); }",
expr(isInstantiationDependent())));
}
TEST_P(ASTMatchersTest, IsInstantiationDependent_MatchesValueDependent) {
if (!GetParam().isCXX() || GetParam().hasDelayedTemplateParsing()) {
// FIXME: Fix this test to work with delayed template parsing.
return;
}
EXPECT_TRUE(matches("template<int T> int f() { return T; }",
expr(isInstantiationDependent())));
}
TEST_P(ASTMatchersTest, IsInstantiationDependent_MatchesTypeDependent) {
if (!GetParam().isCXX() || GetParam().hasDelayedTemplateParsing()) {
// FIXME: Fix this test to work with delayed template parsing.
return;
}
EXPECT_TRUE(matches("template<typename T> T f() { return T(); }",
expr(isInstantiationDependent())));
}
TEST_P(ASTMatchersTest, IsTypeDependent_MatchesTypeDependent) {
if (!GetParam().isCXX() || GetParam().hasDelayedTemplateParsing()) {
// FIXME: Fix this test to work with delayed template parsing.
return;
}
EXPECT_TRUE(matches("template<typename T> T f() { return T(); }",
expr(isTypeDependent())));
}
TEST_P(ASTMatchersTest, IsTypeDependent_NotMatchesValueDependent) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("template<int T> int f() { return T; }",
expr(isTypeDependent())));
}
TEST_P(ASTMatchersTest, IsValueDependent_MatchesValueDependent) {
if (!GetParam().isCXX() || GetParam().hasDelayedTemplateParsing()) {
// FIXME: Fix this test to work with delayed template parsing.
return;
}
EXPECT_TRUE(matches("template<int T> int f() { return T; }",
expr(isValueDependent())));
}
TEST_P(ASTMatchersTest, IsValueDependent_MatchesTypeDependent) {
if (!GetParam().isCXX() || GetParam().hasDelayedTemplateParsing()) {
// FIXME: Fix this test to work with delayed template parsing.
return;
}
EXPECT_TRUE(matches("template<typename T> T f() { return T(); }",
expr(isValueDependent())));
}
TEST_P(ASTMatchersTest, IsValueDependent_MatchesInstantiationDependent) {
if (!GetParam().isCXX() || GetParam().hasDelayedTemplateParsing()) {
// FIXME: Fix this test to work with delayed template parsing.
return;
}
EXPECT_TRUE(matches(
"template<typename T> void f() { (void) sizeof(sizeof(T() + T())); }",
expr(isValueDependent())));
}
TEST_P(ASTMatchersTest,
IsExplicitTemplateSpecialization_DoesNotMatchPrimaryTemplate) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("template <typename T> class X {};",
cxxRecordDecl(isExplicitTemplateSpecialization())));
EXPECT_TRUE(notMatches("template <typename T> void f(T t);",
functionDecl(isExplicitTemplateSpecialization())));
}
TEST_P(
ASTMatchersTest,
IsExplicitTemplateSpecialization_DoesNotMatchExplicitTemplateInstantiations) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
notMatches("template <typename T> class X {};"
"template class X<int>; extern template class X<long>;",
cxxRecordDecl(isExplicitTemplateSpecialization())));
EXPECT_TRUE(
notMatches("template <typename T> void f(T t) {}"
"template void f(int t); extern template void f(long t);",
functionDecl(isExplicitTemplateSpecialization())));
}
TEST_P(
ASTMatchersTest,
IsExplicitTemplateSpecialization_DoesNotMatchImplicitTemplateInstantiations) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("template <typename T> class X {}; X<int> x;",
cxxRecordDecl(isExplicitTemplateSpecialization())));
EXPECT_TRUE(
notMatches("template <typename T> void f(T t); void g() { f(10); }",
functionDecl(isExplicitTemplateSpecialization())));
}
TEST_P(
ASTMatchersTest,
IsExplicitTemplateSpecialization_MatchesExplicitTemplateSpecializations) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("template <typename T> class X {};"
"template<> class X<int> {};",
cxxRecordDecl(isExplicitTemplateSpecialization())));
EXPECT_TRUE(matches("template <typename T> void f(T t) {}"
"template<> void f(int t) {}",
functionDecl(isExplicitTemplateSpecialization())));
}
TEST_P(ASTMatchersTest, IsNoReturn) {
EXPECT_TRUE(notMatches("void func();", functionDecl(isNoReturn())));
EXPECT_TRUE(notMatches("void func() {}", functionDecl(isNoReturn())));
EXPECT_TRUE(matches("__attribute__((noreturn)) void func();",
functionDecl(isNoReturn())));
EXPECT_TRUE(matches("__attribute__((noreturn)) void func() {}",
functionDecl(isNoReturn())));
EXPECT_TRUE(matches("_Noreturn void func();", functionDecl(isNoReturn())));
EXPECT_TRUE(matches("_Noreturn void func() {}", functionDecl(isNoReturn())));
}
TEST_P(ASTMatchersTest, IsNoReturn_CXX) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
notMatches("struct S { void func(); };", functionDecl(isNoReturn())));
EXPECT_TRUE(
notMatches("struct S { void func() {} };", functionDecl(isNoReturn())));
EXPECT_TRUE(notMatches("struct S { static void func(); };",
functionDecl(isNoReturn())));
EXPECT_TRUE(notMatches("struct S { static void func() {} };",
functionDecl(isNoReturn())));
EXPECT_TRUE(notMatches("struct S { S(); };", functionDecl(isNoReturn())));
EXPECT_TRUE(notMatches("struct S { S() {} };", functionDecl(isNoReturn())));
// ---
EXPECT_TRUE(matches("struct S { __attribute__((noreturn)) void func(); };",
functionDecl(isNoReturn())));
EXPECT_TRUE(matches("struct S { __attribute__((noreturn)) void func() {} };",
functionDecl(isNoReturn())));
EXPECT_TRUE(
matches("struct S { __attribute__((noreturn)) static void func(); };",
functionDecl(isNoReturn())));
EXPECT_TRUE(
matches("struct S { __attribute__((noreturn)) static void func() {} };",
functionDecl(isNoReturn())));
EXPECT_TRUE(matches("struct S { __attribute__((noreturn)) S(); };",
functionDecl(isNoReturn())));
EXPECT_TRUE(matches("struct S { __attribute__((noreturn)) S() {} };",
functionDecl(isNoReturn())));
}
TEST_P(ASTMatchersTest, IsNoReturn_CXX11Attribute) {
if (!GetParam().isCXX11OrLater()) {
return;
}
EXPECT_TRUE(matches("[[noreturn]] void func();", functionDecl(isNoReturn())));
EXPECT_TRUE(
matches("[[noreturn]] void func() {}", functionDecl(isNoReturn())));
EXPECT_TRUE(matches("struct S { [[noreturn]] void func(); };",
functionDecl(isNoReturn())));
EXPECT_TRUE(matches("struct S { [[noreturn]] void func() {} };",
functionDecl(isNoReturn())));
EXPECT_TRUE(matches("struct S { [[noreturn]] static void func(); };",
functionDecl(isNoReturn())));
EXPECT_TRUE(matches("struct S { [[noreturn]] static void func() {} };",
functionDecl(isNoReturn())));
EXPECT_TRUE(
matches("struct S { [[noreturn]] S(); };", functionDecl(isNoReturn())));
EXPECT_TRUE(
matches("struct S { [[noreturn]] S() {} };", functionDecl(isNoReturn())));
}
TEST_P(ASTMatchersTest, BooleanType) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `booleanType()` that does not depend on C++.
return;
}
EXPECT_TRUE(matches("struct S { bool func(); };",
cxxMethodDecl(returns(booleanType()))));
EXPECT_TRUE(notMatches("struct S { void func(); };",
cxxMethodDecl(returns(booleanType()))));
}
TEST_P(ASTMatchersTest, VoidType) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `voidType()` that does not depend on C++.
return;
}
EXPECT_TRUE(matches("struct S { void func(); };",
cxxMethodDecl(returns(voidType()))));
}
TEST_P(ASTMatchersTest, RealFloatingPointType) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `realFloatingPointType()` that does not depend on
// C++.
return;
}
EXPECT_TRUE(matches("struct S { float func(); };",
cxxMethodDecl(returns(realFloatingPointType()))));
EXPECT_TRUE(notMatches("struct S { int func(); };",
cxxMethodDecl(returns(realFloatingPointType()))));
EXPECT_TRUE(matches("struct S { long double func(); };",
cxxMethodDecl(returns(realFloatingPointType()))));
}
TEST_P(ASTMatchersTest, ArrayType) {
EXPECT_TRUE(matches("int a[] = {2,3};", arrayType()));
EXPECT_TRUE(matches("int a[42];", arrayType()));
EXPECT_TRUE(matches("void f(int b) { int a[b]; }", arrayType()));
EXPECT_TRUE(notMatches("struct A {}; struct A a[7];",
arrayType(hasElementType(builtinType()))));
EXPECT_TRUE(matches("int const a[] = { 2, 3 };",
qualType(arrayType(hasElementType(builtinType())))));
EXPECT_TRUE(matches(
"int const a[] = { 2, 3 };",
qualType(isConstQualified(), arrayType(hasElementType(builtinType())))));
EXPECT_TRUE(matches("typedef const int T; T x[] = { 1, 2 };",
qualType(isConstQualified(), arrayType())));
EXPECT_TRUE(notMatches(
"int a[] = { 2, 3 };",
qualType(isConstQualified(), arrayType(hasElementType(builtinType())))));
EXPECT_TRUE(notMatches(
"int a[] = { 2, 3 };",
qualType(arrayType(hasElementType(isConstQualified(), builtinType())))));
EXPECT_TRUE(notMatches("int const a[] = { 2, 3 };",
qualType(arrayType(hasElementType(builtinType())),
unless(isConstQualified()))));
EXPECT_TRUE(
matches("int a[2];", constantArrayType(hasElementType(builtinType()))));
EXPECT_TRUE(matches("const int a = 0;", qualType(isInteger())));
}
TEST_P(ASTMatchersTest, DecayedType) {
EXPECT_TRUE(
matches("void f(int i[]);",
valueDecl(hasType(decayedType(hasDecayedType(pointerType()))))));
EXPECT_TRUE(notMatches("int i[7];", decayedType()));
}
TEST_P(ASTMatchersTest, ComplexType) {
EXPECT_TRUE(matches("_Complex float f;", complexType()));
EXPECT_TRUE(
matches("_Complex float f;", complexType(hasElementType(builtinType()))));
EXPECT_TRUE(notMatches("_Complex float f;",
complexType(hasElementType(isInteger()))));
}
TEST_P(ASTMatchersTest, IsAnonymous) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("namespace N {}", namespaceDecl(isAnonymous())));
EXPECT_TRUE(matches("namespace {}", namespaceDecl(isAnonymous())));
}
TEST_P(ASTMatchersTest, InStdNamespace) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("class vector {};"
"namespace foo {"
" class vector {};"
"}"
"namespace foo {"
" namespace std {"
" class vector {};"
" }"
"}",
cxxRecordDecl(hasName("vector"), isInStdNamespace())));
EXPECT_TRUE(matches("namespace std {"
" class vector {};"
"}",
cxxRecordDecl(hasName("vector"), isInStdNamespace())));
}
TEST_P(ASTMatchersTest, InStdNamespace_CXX11) {
if (!GetParam().isCXX11OrLater()) {
return;
}
EXPECT_TRUE(matches("namespace std {"
" inline namespace __1 {"
" class vector {};"
" }"
"}",
cxxRecordDecl(hasName("vector"), isInStdNamespace())));
EXPECT_TRUE(notMatches("namespace std {"
" inline namespace __1 {"
" inline namespace __fs {"
" namespace filesystem {"
" inline namespace v1 {"
" class path {};"
" }"
" }"
" }"
" }"
"}",
cxxRecordDecl(hasName("path"), isInStdNamespace())));
EXPECT_TRUE(
matches("namespace std {"
" inline namespace __1 {"
" inline namespace __fs {"
" namespace filesystem {"
" inline namespace v1 {"
" class path {};"
" }"
" }"
" }"
" }"
"}",
cxxRecordDecl(hasName("path"),
hasAncestor(namespaceDecl(hasName("filesystem"),
isInStdNamespace())))));
}
TEST_P(ASTMatchersTest, EqualsBoundNodeMatcher_QualType) {
EXPECT_TRUE(matches(
"int i = 1;", varDecl(hasType(qualType().bind("type")),
hasInitializer(ignoringParenImpCasts(
hasType(qualType(equalsBoundNode("type"))))))));
EXPECT_TRUE(notMatches("int i = 1.f;",
varDecl(hasType(qualType().bind("type")),
hasInitializer(ignoringParenImpCasts(hasType(
qualType(equalsBoundNode("type"))))))));
}
TEST_P(ASTMatchersTest, EqualsBoundNodeMatcher_NonMatchingTypes) {
EXPECT_TRUE(notMatches(
"int i = 1;", varDecl(namedDecl(hasName("i")).bind("name"),
hasInitializer(ignoringParenImpCasts(
hasType(qualType(equalsBoundNode("type"))))))));
}
TEST_P(ASTMatchersTest, EqualsBoundNodeMatcher_Stmt) {
EXPECT_TRUE(
matches("void f() { if(1) {} }",
stmt(allOf(ifStmt().bind("if"),
hasParent(stmt(has(stmt(equalsBoundNode("if")))))))));
EXPECT_TRUE(notMatches(
"void f() { if(1) { if (1) {} } }",
stmt(allOf(ifStmt().bind("if"), has(stmt(equalsBoundNode("if")))))));
}
TEST_P(ASTMatchersTest, EqualsBoundNodeMatcher_Decl) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `equalsBoundNode()` for declarations that does not
// depend on C++.
return;
}
EXPECT_TRUE(matches(
"class X { class Y {}; };",
decl(allOf(recordDecl(hasName("::X::Y")).bind("record"),
hasParent(decl(has(decl(equalsBoundNode("record")))))))));
EXPECT_TRUE(notMatches("class X { class Y {}; };",
decl(allOf(recordDecl(hasName("::X")).bind("record"),
has(decl(equalsBoundNode("record")))))));
}
TEST_P(ASTMatchersTest, EqualsBoundNodeMatcher_Type) {
if (!GetParam().isCXX()) {
// FIXME: Add a test for `equalsBoundNode()` for types that does not depend
// on C++.
return;
}
EXPECT_TRUE(matches(
"class X { int a; int b; };",
recordDecl(
has(fieldDecl(hasName("a"), hasType(type().bind("t")))),
has(fieldDecl(hasName("b"), hasType(type(equalsBoundNode("t"))))))));
EXPECT_TRUE(notMatches(
"class X { int a; double b; };",
recordDecl(
has(fieldDecl(hasName("a"), hasType(type().bind("t")))),
has(fieldDecl(hasName("b"), hasType(type(equalsBoundNode("t"))))))));
}
TEST_P(ASTMatchersTest, EqualsBoundNodeMatcher_UsingForEachDescendant) {
EXPECT_TRUE(matchAndVerifyResultTrue(
"int f() {"
" if (1) {"
" int i = 9;"
" }"
" int j = 10;"
" {"
" float k = 9.0;"
" }"
" return 0;"
"}",
// Look for variable declarations within functions whose type is the same
// as the function return type.
functionDecl(
returns(qualType().bind("type")),
forEachDescendant(varDecl(hasType(qualType(equalsBoundNode("type"))))
.bind("decl"))),
// Only i and j should match, not k.
std::make_unique<VerifyIdIsBoundTo<VarDecl>>("decl", 2)));
}
TEST_P(ASTMatchersTest, EqualsBoundNodeMatcher_FiltersMatchedCombinations) {
EXPECT_TRUE(matchAndVerifyResultTrue(
"void f() {"
" int x;"
" double d;"
" x = d + x - d + x;"
"}",
functionDecl(
hasName("f"), forEachDescendant(varDecl().bind("d")),
forEachDescendant(declRefExpr(to(decl(equalsBoundNode("d")))))),
std::make_unique<VerifyIdIsBoundTo<VarDecl>>("d", 5)));
}
TEST_P(ASTMatchersTest,
EqualsBoundNodeMatcher_UnlessDescendantsOfAncestorsMatch) {
EXPECT_TRUE(matchAndVerifyResultTrue(
"struct StringRef { int size() const; const char* data() const; };"
"void f(StringRef v) {"
" v.data();"
"}",
cxxMemberCallExpr(
callee(cxxMethodDecl(hasName("data"))),
on(declRefExpr(to(
varDecl(hasType(recordDecl(hasName("StringRef")))).bind("var")))),
unless(hasAncestor(stmt(hasDescendant(cxxMemberCallExpr(
callee(cxxMethodDecl(anyOf(hasName("size"), hasName("length")))),
on(declRefExpr(to(varDecl(equalsBoundNode("var")))))))))))
.bind("data"),
std::make_unique<VerifyIdIsBoundTo<Expr>>("data", 1)));
EXPECT_FALSE(matches(
"struct StringRef { int size() const; const char* data() const; };"
"void f(StringRef v) {"
" v.data();"
" v.size();"
"}",
cxxMemberCallExpr(
callee(cxxMethodDecl(hasName("data"))),
on(declRefExpr(to(
varDecl(hasType(recordDecl(hasName("StringRef")))).bind("var")))),
unless(hasAncestor(stmt(hasDescendant(cxxMemberCallExpr(
callee(cxxMethodDecl(anyOf(hasName("size"), hasName("length")))),
on(declRefExpr(to(varDecl(equalsBoundNode("var")))))))))))
.bind("data")));
}
TEST_P(ASTMatchersTest, NullPointerConstant) {
EXPECT_TRUE(matches("#define NULL ((void *)0)\n"
"void *v1 = NULL;",
expr(nullPointerConstant())));
EXPECT_TRUE(matches("char *cp = (char *)0;", expr(nullPointerConstant())));
EXPECT_TRUE(matches("int *ip = 0;", expr(nullPointerConstant())));
EXPECT_FALSE(matches("int i = 0;", expr(nullPointerConstant())));
}
TEST_P(ASTMatchersTest, NullPointerConstant_GNUNull) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("void *p = __null;", expr(nullPointerConstant())));
}
TEST_P(ASTMatchersTest, NullPointerConstant_GNUNullInTemplate) {
if (!GetParam().isCXX() || GetParam().hasDelayedTemplateParsing()) {
// FIXME: Fix this test to work with delayed template parsing.
return;
}
const char kTest[] = R"(
template <typename T>
struct MyTemplate {
MyTemplate() : field_(__null) {}
T* field_;
};
)";
EXPECT_TRUE(matches(kTest, expr(nullPointerConstant())));
}
TEST_P(ASTMatchersTest, NullPointerConstant_CXX11Nullptr) {
if (!GetParam().isCXX11OrLater()) {
return;
}
EXPECT_TRUE(matches("void *p = nullptr;", expr(nullPointerConstant())));
}
TEST_P(ASTMatchersTest, HasExternalFormalLinkage) {
EXPECT_TRUE(matches("int a = 0;",
namedDecl(hasName("a"), hasExternalFormalLinkage())));
EXPECT_TRUE(notMatches("static int a = 0;",
namedDecl(hasName("a"), hasExternalFormalLinkage())));
EXPECT_TRUE(notMatches("static void f(void) { int a = 0; }",
namedDecl(hasName("a"), hasExternalFormalLinkage())));
EXPECT_TRUE(notMatches("void f(void) { int a = 0; }",
namedDecl(hasName("a"), hasExternalFormalLinkage())));
}
TEST_P(ASTMatchersTest, HasExternalFormalLinkage_CXX) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("namespace { int a = 0; }",
namedDecl(hasName("a"), hasExternalFormalLinkage())));
}
TEST_P(ASTMatchersTest, HasDefaultArgument) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
matches("void x(int val = 0) {}", parmVarDecl(hasDefaultArgument())));
EXPECT_TRUE(
notMatches("void x(int val) {}", parmVarDecl(hasDefaultArgument())));
}
TEST_P(ASTMatchersTest, IsAtPosition) {
EXPECT_TRUE(matches("void x(int a, int b) {}", parmVarDecl(isAtPosition(1))));
EXPECT_TRUE(matches("void x(int a, int b) {}", parmVarDecl(isAtPosition(0))));
EXPECT_TRUE(matches("void x(int a, int b) {}", parmVarDecl(isAtPosition(1))));
EXPECT_TRUE(notMatches("void x(int val) {}", parmVarDecl(isAtPosition(1))));
}
TEST_P(ASTMatchersTest, IsAtPosition_FunctionDecl) {
EXPECT_TRUE(matches("void x(int a);", parmVarDecl(isAtPosition(0))));
EXPECT_TRUE(matches("void x(int a, int b);", parmVarDecl(isAtPosition(0))));
EXPECT_TRUE(matches("void x(int a, int b);", parmVarDecl(isAtPosition(1))));
EXPECT_TRUE(notMatches("void x(int val);", parmVarDecl(isAtPosition(1))));
}
TEST_P(ASTMatchersTest, IsAtPosition_Lambda) {
if (!GetParam().isCXX11OrLater()) {
return;
}
EXPECT_TRUE(
matches("void x() { [](int a) {}; }", parmVarDecl(isAtPosition(0))));
EXPECT_TRUE(matches("void x() { [](int a, int b) {}; }",
parmVarDecl(isAtPosition(0))));
EXPECT_TRUE(matches("void x() { [](int a, int b) {}; }",
parmVarDecl(isAtPosition(1))));
EXPECT_TRUE(
notMatches("void x() { [](int val) {}; }", parmVarDecl(isAtPosition(1))));
}
TEST_P(ASTMatchersTest, IsAtPosition_BlockDecl) {
EXPECT_TRUE(matchesObjC(
"void func() { void (^my_block)(int arg) = ^void(int arg) {}; } ",
parmVarDecl(isAtPosition(0))));
EXPECT_TRUE(matchesObjC("void func() { void (^my_block)(int x, int y) = "
"^void(int x, int y) {}; } ",
parmVarDecl(isAtPosition(1))));
EXPECT_TRUE(notMatchesObjC(
"void func() { void (^my_block)(int arg) = ^void(int arg) {}; } ",
parmVarDecl(isAtPosition(1))));
}
TEST_P(ASTMatchersTest, IsArray) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("struct MyClass {}; MyClass *p1 = new MyClass[10];",
cxxNewExpr(isArray())));
}
TEST_P(ASTMatchersTest, HasArraySize) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("struct MyClass {}; MyClass *p1 = new MyClass[10];",
cxxNewExpr(hasArraySize(
ignoringParenImpCasts(integerLiteral(equals(10)))))));
}
TEST_P(ASTMatchersTest, HasDefinition_MatchesStructDefinition) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("struct x {};", cxxRecordDecl(hasDefinition())));
EXPECT_TRUE(notMatches("struct x;", cxxRecordDecl(hasDefinition())));
}
TEST_P(ASTMatchersTest, HasDefinition_MatchesClassDefinition) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("class x {};", cxxRecordDecl(hasDefinition())));
EXPECT_TRUE(notMatches("class x;", cxxRecordDecl(hasDefinition())));
}
TEST_P(ASTMatchersTest, HasDefinition_MatchesUnionDefinition) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("union x {};", cxxRecordDecl(hasDefinition())));
EXPECT_TRUE(notMatches("union x;", cxxRecordDecl(hasDefinition())));
}
TEST_P(ASTMatchersTest, IsScoped_MatchesScopedEnum) {
if (!GetParam().isCXX11OrLater()) {
return;
}
EXPECT_TRUE(matches("enum class X {};", enumDecl(isScoped())));
}
TEST_P(ASTMatchersTest, IsScoped_NotMatchesRegularEnum) {
EXPECT_TRUE(notMatches("enum E { E1 };", enumDecl(isScoped())));
}
TEST_P(ASTMatchersTest, IsStruct) {
EXPECT_TRUE(matches("struct S {};", tagDecl(isStruct())));
}
TEST_P(ASTMatchersTest, IsUnion) {
EXPECT_TRUE(matches("union U {};", tagDecl(isUnion())));
}
TEST_P(ASTMatchersTest, IsEnum) {
EXPECT_TRUE(matches("enum E { E1 };", tagDecl(isEnum())));
}
TEST_P(ASTMatchersTest, IsClass) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("class C {};", tagDecl(isClass())));
}
TEST_P(ASTMatchersTest, HasTrailingReturn_MatchesTrailingReturn) {
if (!GetParam().isCXX11OrLater()) {
return;
}
EXPECT_TRUE(matches("auto Y() -> int { return 0; }",
functionDecl(hasTrailingReturn())));
EXPECT_TRUE(matches("auto X() -> int;", functionDecl(hasTrailingReturn())));
EXPECT_TRUE(
notMatches("int X() { return 0; }", functionDecl(hasTrailingReturn())));
EXPECT_TRUE(notMatches("int X();", functionDecl(hasTrailingReturn())));
EXPECT_TRUE(notMatches("void X();", functionDecl(hasTrailingReturn())));
}
TEST_P(ASTMatchersTest, HasTrailingReturn_MatchesLambdaTrailingReturn) {
if (!GetParam().isCXX11OrLater()) {
return;
}
EXPECT_TRUE(matches(
"auto lambda2 = [](double x, double y) -> double {return x + y;};",
functionDecl(hasTrailingReturn())));
EXPECT_TRUE(
notMatches("auto lambda2 = [](double x, double y) {return x + y;};",
functionDecl(hasTrailingReturn())));
}
TEST_P(ASTMatchersTest, IsAssignmentOperator) {
if (!GetParam().isCXX()) {
return;
}
StatementMatcher BinAsgmtOperator = binaryOperator(isAssignmentOperator());
StatementMatcher CXXAsgmtOperator =
cxxOperatorCallExpr(isAssignmentOperator());
EXPECT_TRUE(matches("void x() { int a; a += 1; }", BinAsgmtOperator));
EXPECT_TRUE(matches("void x() { int a; a = 2; }", BinAsgmtOperator));
EXPECT_TRUE(matches("void x() { int a; a &= 3; }", BinAsgmtOperator));
EXPECT_TRUE(matches("struct S { S& operator=(const S&); };"
"void x() { S s1, s2; s1 = s2; }",
CXXAsgmtOperator));
EXPECT_TRUE(
notMatches("void x() { int a; if(a == 0) return; }", BinAsgmtOperator));
}
TEST_P(ASTMatchersTest, IsComparisonOperator) {
if (!GetParam().isCXX()) {
return;
}
StatementMatcher BinCompOperator = binaryOperator(isComparisonOperator());
StatementMatcher CXXCompOperator =
cxxOperatorCallExpr(isComparisonOperator());
EXPECT_TRUE(matches("void x() { int a; a == 1; }", BinCompOperator));
EXPECT_TRUE(matches("void x() { int a; a > 2; }", BinCompOperator));
EXPECT_TRUE(matches("struct S { bool operator==(const S&); };"
"void x() { S s1, s2; bool b1 = s1 == s2; }",
CXXCompOperator));
EXPECT_TRUE(
notMatches("void x() { int a; if(a = 0) return; }", BinCompOperator));
}
TEST_P(ASTMatchersTest, HasInit) {
if (!GetParam().isCXX11OrLater()) {
// FIXME: Add a test for `hasInit()` that does not depend on C++.
return;
}
EXPECT_TRUE(matches("int x{0};", initListExpr(hasInit(0, expr()))));
EXPECT_FALSE(matches("int x{0};", initListExpr(hasInit(1, expr()))));
EXPECT_FALSE(matches("int x;", initListExpr(hasInit(0, expr()))));
}
TEST_P(ASTMatchersTest, IsMain) {
EXPECT_TRUE(matches("int main() {}", functionDecl(isMain())));
EXPECT_TRUE(notMatches("int main2() {}", functionDecl(isMain())));
}
TEST_P(ASTMatchersTest, OMPExecutableDirective_IsStandaloneDirective) {
auto Matcher = ompExecutableDirective(isStandaloneDirective());
StringRef Source0 = R"(
void x() {
#pragma omp parallel
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source0, Matcher));
StringRef Source1 = R"(
void x() {
#pragma omp taskyield
})";
EXPECT_TRUE(matchesWithOpenMP(Source1, Matcher));
}
TEST_P(ASTMatchersTest, OMPExecutableDirective_HasStructuredBlock) {
StringRef Source0 = R"(
void x() {
#pragma omp parallel
;
})";
EXPECT_TRUE(matchesWithOpenMP(
Source0, ompExecutableDirective(hasStructuredBlock(nullStmt()))));
StringRef Source1 = R"(
void x() {
#pragma omp parallel
{;}
})";
EXPECT_TRUE(notMatchesWithOpenMP(
Source1, ompExecutableDirective(hasStructuredBlock(nullStmt()))));
EXPECT_TRUE(matchesWithOpenMP(
Source1, ompExecutableDirective(hasStructuredBlock(compoundStmt()))));
StringRef Source2 = R"(
void x() {
#pragma omp taskyield
{;}
})";
EXPECT_TRUE(notMatchesWithOpenMP(
Source2, ompExecutableDirective(hasStructuredBlock(anything()))));
}
TEST_P(ASTMatchersTest, OMPExecutableDirective_HasClause) {
auto Matcher = ompExecutableDirective(hasAnyClause(anything()));
StringRef Source0 = R"(
void x() {
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source0, Matcher));
StringRef Source1 = R"(
void x() {
#pragma omp parallel
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source1, Matcher));
StringRef Source2 = R"(
void x() {
#pragma omp parallel default(none)
;
})";
EXPECT_TRUE(matchesWithOpenMP(Source2, Matcher));
StringRef Source3 = R"(
void x() {
#pragma omp parallel default(shared)
;
})";
EXPECT_TRUE(matchesWithOpenMP(Source3, Matcher));
StringRef Source4 = R"(
void x() {
#pragma omp parallel default(firstprivate)
;
})";
EXPECT_TRUE(matchesWithOpenMP51(Source4, Matcher));
StringRef Source5 = R"(
void x(int x) {
#pragma omp parallel num_threads(x)
;
})";
EXPECT_TRUE(matchesWithOpenMP(Source5, Matcher));
}
TEST_P(ASTMatchersTest, OMPDefaultClause_IsNoneKind) {
auto Matcher =
ompExecutableDirective(hasAnyClause(ompDefaultClause(isNoneKind())));
StringRef Source0 = R"(
void x() {
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source0, Matcher));
StringRef Source1 = R"(
void x() {
#pragma omp parallel
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source1, Matcher));
StringRef Source2 = R"(
void x() {
#pragma omp parallel default(none)
;
})";
EXPECT_TRUE(matchesWithOpenMP(Source2, Matcher));
StringRef Source3 = R"(
void x() {
#pragma omp parallel default(shared)
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source3, Matcher));
StringRef Source4 = R"(
void x(int x) {
#pragma omp parallel default(firstprivate)
;
})";
EXPECT_TRUE(notMatchesWithOpenMP51(Source4, Matcher));
const std::string Source5 = R"(
void x(int x) {
#pragma omp parallel num_threads(x)
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source5, Matcher));
}
TEST_P(ASTMatchersTest, OMPDefaultClause_IsSharedKind) {
auto Matcher =
ompExecutableDirective(hasAnyClause(ompDefaultClause(isSharedKind())));
StringRef Source0 = R"(
void x() {
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source0, Matcher));
StringRef Source1 = R"(
void x() {
#pragma omp parallel
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source1, Matcher));
StringRef Source2 = R"(
void x() {
#pragma omp parallel default(shared)
;
})";
EXPECT_TRUE(matchesWithOpenMP(Source2, Matcher));
StringRef Source3 = R"(
void x() {
#pragma omp parallel default(none)
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source3, Matcher));
StringRef Source4 = R"(
void x(int x) {
#pragma omp parallel default(firstprivate)
;
})";
EXPECT_TRUE(notMatchesWithOpenMP51(Source4, Matcher));
const std::string Source5 = R"(
void x(int x) {
#pragma omp parallel num_threads(x)
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source5, Matcher));
}
TEST(OMPDefaultClause, isFirstPrivateKind) {
auto Matcher = ompExecutableDirective(
hasAnyClause(ompDefaultClause(isFirstPrivateKind())));
const std::string Source0 = R"(
void x() {
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source0, Matcher));
const std::string Source1 = R"(
void x() {
#pragma omp parallel
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source1, Matcher));
const std::string Source2 = R"(
void x() {
#pragma omp parallel default(shared)
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source2, Matcher));
const std::string Source3 = R"(
void x() {
#pragma omp parallel default(none)
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source3, Matcher));
const std::string Source4 = R"(
void x(int x) {
#pragma omp parallel default(firstprivate)
;
})";
EXPECT_TRUE(matchesWithOpenMP51(Source4, Matcher));
const std::string Source5 = R"(
void x(int x) {
#pragma omp parallel num_threads(x)
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source5, Matcher));
}
TEST_P(ASTMatchersTest, OMPExecutableDirective_IsAllowedToContainClauseKind) {
auto Matcher = ompExecutableDirective(
isAllowedToContainClauseKind(llvm::omp::OMPC_default));
StringRef Source0 = R"(
void x() {
;
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source0, Matcher));
StringRef Source1 = R"(
void x() {
#pragma omp parallel
;
})";
EXPECT_TRUE(matchesWithOpenMP(Source1, Matcher));
StringRef Source2 = R"(
void x() {
#pragma omp parallel default(none)
;
})";
EXPECT_TRUE(matchesWithOpenMP(Source2, Matcher));
StringRef Source3 = R"(
void x() {
#pragma omp parallel default(shared)
;
})";
EXPECT_TRUE(matchesWithOpenMP(Source3, Matcher));
StringRef Source4 = R"(
void x() {
#pragma omp parallel default(firstprivate)
;
})";
EXPECT_TRUE(matchesWithOpenMP51(Source4, Matcher));
StringRef Source5 = R"(
void x(int x) {
#pragma omp parallel num_threads(x)
;
})";
EXPECT_TRUE(matchesWithOpenMP(Source5, Matcher));
StringRef Source6 = R"(
void x() {
#pragma omp taskyield
})";
EXPECT_TRUE(notMatchesWithOpenMP(Source6, Matcher));
StringRef Source7 = R"(
void x() {
#pragma omp task
;
})";
EXPECT_TRUE(matchesWithOpenMP(Source7, Matcher));
}
TEST_P(ASTMatchersTest, HasAnyBase_DirectBase) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches(
"struct Base {};"
"struct ExpectedMatch : Base {};",
cxxRecordDecl(hasName("ExpectedMatch"),
hasAnyBase(hasType(cxxRecordDecl(hasName("Base")))))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IndirectBase) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches(
"struct Base {};"
"struct Intermediate : Base {};"
"struct ExpectedMatch : Intermediate {};",
cxxRecordDecl(hasName("ExpectedMatch"),
hasAnyBase(hasType(cxxRecordDecl(hasName("Base")))))));
}
TEST_P(ASTMatchersTest, HasAnyBase_NoBase) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("struct Foo {};"
"struct Bar {};",
cxxRecordDecl(hasAnyBase(hasType(cxxRecordDecl())))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsPublic_Public) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("class Base {};"
"class Derived : public Base {};",
cxxRecordDecl(hasAnyBase(isPublic()))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsPublic_DefaultAccessSpecifierPublic) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("class Base {};"
"struct Derived : Base {};",
cxxRecordDecl(hasAnyBase(isPublic()))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsPublic_Private) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("class Base {};"
"class Derived : private Base {};",
cxxRecordDecl(hasAnyBase(isPublic()))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsPublic_DefaultAccessSpecifierPrivate) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("class Base {};"
"class Derived : Base {};",
cxxRecordDecl(hasAnyBase(isPublic()))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsPublic_Protected) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("class Base {};"
"class Derived : protected Base {};",
cxxRecordDecl(hasAnyBase(isPublic()))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsPrivate_Private) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("class Base {};"
"class Derived : private Base {};",
cxxRecordDecl(hasAnyBase(isPrivate()))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsPrivate_DefaultAccessSpecifierPrivate) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("struct Base {};"
"class Derived : Base {};",
cxxRecordDecl(hasAnyBase(isPrivate()))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsPrivate_Public) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("class Base {};"
"class Derived : public Base {};",
cxxRecordDecl(hasAnyBase(isPrivate()))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsPrivate_DefaultAccessSpecifierPublic) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("class Base {};"
"struct Derived : Base {};",
cxxRecordDecl(hasAnyBase(isPrivate()))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsPrivate_Protected) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("class Base {};"
"class Derived : protected Base {};",
cxxRecordDecl(hasAnyBase(isPrivate()))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsProtected_Protected) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("class Base {};"
"class Derived : protected Base {};",
cxxRecordDecl(hasAnyBase(isProtected()))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsProtected_Public) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("class Base {};"
"class Derived : public Base {};",
cxxRecordDecl(hasAnyBase(isProtected()))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsProtected_Private) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("class Base {};"
"class Derived : private Base {};",
cxxRecordDecl(hasAnyBase(isProtected()))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsVirtual_Directly) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(matches("class Base {};"
"class Derived : virtual Base {};",
cxxRecordDecl(hasAnyBase(isVirtual()))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsVirtual_Indirectly) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(
matches("class Base {};"
"class Intermediate : virtual Base {};"
"class Derived : Intermediate {};",
cxxRecordDecl(hasName("Derived"), hasAnyBase(isVirtual()))));
}
TEST_P(ASTMatchersTest, HasAnyBase_IsVirtual_NoVirtualBase) {
if (!GetParam().isCXX()) {
return;
}
EXPECT_TRUE(notMatches("class Base {};"
"class Derived : Base {};",
cxxRecordDecl(hasAnyBase(isVirtual()))));
}
TEST_P(ASTMatchersTest, HasDirectBase) {
if (!GetParam().isCXX()) {
return;
}
DeclarationMatcher ClassHasAnyDirectBase =
cxxRecordDecl(hasDirectBase(cxxBaseSpecifier()));
EXPECT_TRUE(notMatches("class X {};", ClassHasAnyDirectBase));
EXPECT_TRUE(matches("class X {}; class Y : X {};", ClassHasAnyDirectBase));
EXPECT_TRUE(matches("class X {}; class Y : public virtual X {};",
ClassHasAnyDirectBase));
EXPECT_TRUE(matches(
R"cc(
class Base {};
class Derived : Base{};
)cc",
cxxRecordDecl(hasName("Derived"),
hasDirectBase(hasType(cxxRecordDecl(hasName("Base")))))));
StringRef MultiDerived = R"cc(
class Base {};
class Base2 {};
class Derived : Base, Base2{};
)cc";
EXPECT_TRUE(matches(
MultiDerived,
cxxRecordDecl(hasName("Derived"),
hasDirectBase(hasType(cxxRecordDecl(hasName("Base")))))));
EXPECT_TRUE(matches(
MultiDerived,
cxxRecordDecl(hasName("Derived"),
hasDirectBase(hasType(cxxRecordDecl(hasName("Base2")))))));
StringRef Indirect = R"cc(
class Base {};
class Intermediate : Base {};
class Derived : Intermediate{};
)cc";
EXPECT_TRUE(
matches(Indirect, cxxRecordDecl(hasName("Derived"),
hasDirectBase(hasType(cxxRecordDecl(
hasName("Intermediate")))))));
EXPECT_TRUE(notMatches(
Indirect,
cxxRecordDecl(hasName("Derived"),
hasDirectBase(hasType(cxxRecordDecl(hasName("Base")))))));
}
TEST_P(ASTMatchersTest, CapturesThis) {
if (!GetParam().isCXX11OrLater()) {
return;
}
auto matcher = lambdaExpr(hasAnyCapture(lambdaCapture(capturesThis())));
EXPECT_TRUE(matches("class C { int cc; int f() { auto l = [this](){ return "
"cc; }; return l(); } };",
matcher));
EXPECT_TRUE(matches("class C { int cc; int f() { auto l = [=](){ return cc; "
"}; return l(); } };",
matcher));
EXPECT_TRUE(matches("class C { int cc; int f() { auto l = [&](){ return cc; "
"}; return l(); } };",
matcher));
EXPECT_FALSE(matches("class C { int cc; int f() { auto l = [cc](){ return "
"cc; }; return l(); } };",
matcher));
EXPECT_FALSE(matches("class C { int this; int f() { auto l = [this](){ "
"return this; }; return l(); } };",
matcher));
}
TEST_P(ASTMatchersTest, IsImplicit_LambdaCapture) {
if (!GetParam().isCXX11OrLater()) {
return;
}
auto matcher = lambdaExpr(hasAnyCapture(
lambdaCapture(isImplicit(), capturesVar(varDecl(hasName("cc"))))));
EXPECT_TRUE(
matches("int main() { int cc; auto f = [&](){ return cc; }; }", matcher));
EXPECT_TRUE(
matches("int main() { int cc; auto f = [=](){ return cc; }; }", matcher));
EXPECT_FALSE(matches("int main() { int cc; auto f = [cc](){ return cc; }; }",
matcher));
}
} // namespace ast_matchers
} // namespace clang