// RUN: rm -rf %t
// RUN: not %clang_cc1 -fmodules -fmodules-cache-path=%t -fmodule-map-file=%S/Inputs/diagnostics-aux.modulemap -fmodule-map-file=%s -fsyntax-only -x c++ /dev/null 2>&1 | FileCheck %s

// CHECK: In file included from {{.*}}diagnostics-aux.modulemap:3:
// CHECK: diagnostics-aux-2.modulemap:2:3: error: expected

// PR22299: Ensure we can produce diagnostics for duplicate modules from -fmodule-map-file=.
//
// CHECK-DAG: diagnostics.modulemap:[[@LINE+2]]:8: error: redefinition of module 'foo'
// CHECK-DAG: diagnostics-aux.modulemap:1:8: note: previously defined here
module foo {}

//* Check that we accept BCPL comments properly, not just as an extension. */

module bad_use {
  // CHECK-DAG: diagnostics.modulemap:[[@LINE+1]]:22: error: use declarations are only allowed in top-level modules
  module submodule { use foo }
}

module header_attr {
  // CHECK-DAG: diagnostics.modulemap:[[@LINE+1]]:20: error: expected a header attribute name
  header "foo.h" { x }
  // CHECK-DAG: diagnostics.modulemap:[[@LINE+1]]:27: error: header attribute 'size' specified multiple times
  header "bar.h" { size 1 size 2 }
  // CHECK-DAG: diagnostics.modulemap:[[@LINE+1]]:25: error: expected integer literal as value for header attribute 'size'
  header "baz.h" { size "30 kilobytes" }

  header "quux.h" { size 1 mtime 2 }
  header "no_attrs.h" {}
}

// CHECK-DAG: diagnostics.modulemap:[[@LINE+1]]:8: error: no module named 'unknown' found, parent module must be defined before the submodule
module unknown.submodule {}
module known_top_level {}
// CHECK-DAG: diagnostics.modulemap:[[@LINE+1]]:24: error: no module named 'unknown' in 'known_top_level', parent module must be defined before the submodule
module known_top_level.unknown.submodule {}

// Check that there were no other errors emitted.
// CHECK: 8 errors generated