| """ | |
| Test that lldb persistent variables works correctly. | |
| """ | |
| import lldb | |
| from lldbsuite.test.lldbtest import * | |
| class PersistentVariablesTestCase(TestBase): | |
| def test_persistent_variables(self): | |
| """Test that lldb persistent variables works correctly.""" | |
| self.build() | |
| lldbutil.run_to_source_breakpoint( | |
| self, "// break here", lldb.SBFileSpec("main.c") | |
| ) | |
| self.runCmd("expr int $i = i") | |
| self.expect_expr("$i == i", result_type="bool", result_value="true") | |
| self.expect_expr("$i + 1", result_type="int", result_value="6") | |
| self.expect_expr("$i + 3", result_type="int", result_value="8") | |
| self.expect_expr("$1 + $2", result_type="int", result_value="14") | |
| self.expect_expr("$3", result_type="int", result_value="14") | |
| self.expect_expr("$2", result_type="int", result_value="8") | |
| self.expect_expr("(int)-2", result_type="int", result_value="-2") | |
| self.expect_expr("$4", result_type="int", result_value="-2") | |
| self.expect_expr("$4 > (int)31", result_type="bool", result_value="false") | |
| self.expect_expr("(long)$4", result_type="long", result_value="-2") | |
| # Try assigning an existing persistent veriable with a numeric name. | |
| self.expect( | |
| "expr int $2 = 1234", | |
| error=True, | |
| substrs=[ | |
| "Error [IRForTarget]: Names starting with $0, $1, ... are reserved for use as result names" | |
| ], | |
| ) | |
| # $2 should still have its original value. | |
| self.expect_expr("$2", result_type="int", result_value="8") | |
| # Try assigning an non-existing persistent veriable with a numeric name. | |
| self.expect( | |
| "expr int $200 = 3", | |
| error=True, | |
| substrs=[ | |
| "Error [IRForTarget]: Names starting with $0, $1, ... are reserved for use as result names" | |
| ], | |
| ) | |
| # Test that $200 wasn't created by the previous expression. | |
| self.expect( | |
| "expr $200", error=True, substrs=["use of undeclared identifier '$200'"] | |
| ) | |
| # Try redeclaring the persistent variable with the same type. | |
| # This should be rejected as we treat them as if they are globals. | |
| self.expect( | |
| "expr int $i = 123", | |
| error=True, | |
| substrs=["redefinition of persistent variable '$i'"], | |
| ) | |
| self.expect_expr("$i", result_type="int", result_value="5") | |
| # Try redeclaring the persistent variable with another type. Should | |
| # also be rejected. | |
| self.expect( | |
| "expr long $i = 123", | |
| error=True, | |
| substrs=["redefinition of persistent variable '$i'"], | |
| ) | |
| self.expect_expr("$i", result_type="int", result_value="5") | |
| # Try assigning the persistent variable a new value. | |
| self.expect("expr $i = 55") | |
| self.expect_expr("$i", result_type="int", result_value="55") |