1*8f4d3ff1SRichard Smith// 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
2ac425e91SRichard Smith
3ac425e91SRichard Smith// PR22299: Ensure we can produce diagnostics for duplicate modules from -fmodule-map-file=.
4ac425e91SRichard Smith//
5*8f4d3ff1SRichard Smith// CHECK: diagnostics.modulemap:[[@LINE+2]]:8: error: redefinition of module 'foo'
6*8f4d3ff1SRichard Smith// CHECK: diagnostics-aux.modulemap:1:8: note: previously defined here
7ac425e91SRichard Smithmodule foo {}
80414b857SRichard Smith
90414b857SRichard Smith//* Check that we accept BCPL comments properly, not just as an extension. */
10*8f4d3ff1SRichard Smith
11*8f4d3ff1SRichard Smithmodule bad_use {
12*8f4d3ff1SRichard Smith  // CHECK: diagnostics.modulemap:[[@LINE+1]]:22: error: use declarations are only allowed in top-level modules
13*8f4d3ff1SRichard Smith  module submodule { use foo }
14*8f4d3ff1SRichard Smith}
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