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libclang: report error code for bad PCH files This commit improves libclang to report the error condition when CXTranslationUnit can not be created because of a stale PCH file. This allows the caller, for example, to rebuild the PCH file and retry the request. There two are APIs in libclang that return a CXTranslationUnit and don't support reporting detailed errors (the only error condition is a NULL result). For these APIs, a second, superior, version is introduced -- clang_createTranslationUnit2 and clang_parseTranslationUnit2. These functions return a CXTranslationUnit indirectly and also return an error code. Old functions are still supported and are nothing more than convenience wrappers that ignore extended error codes. As a cleanup, this commit also categorizes some libclang errors in the functions I had to modify anyway. llvm-svn: 201249
2014-02-13 03:12:37 +08:00
#include "a.h"
// RUN: rm -rf %t
// RUN: mkdir %t
// RUN: %clang_cc1 -x c-header -fmodules -fdisable-module-hash -fmodules-cache-path=%t/modules-cache -emit-pch -I %S/Inputs/Headers -o %t/use_LibA.pch %s
Allow multiple modules with the same name to coexist in the module cache To differentiate between two modules with the same name, we will consider the path the module map file that they are defined by* part of the ‘key’ for looking up the precompiled module (pcm file). Specifically, this patch renames the precompiled module (pcm) files from cache-path/<module hash>/Foo.pcm to cache-path/<module hash>/Foo-<hash of module map path>.pcm In addition, I’ve taught the ASTReader to re-resolve the names of imported modules during module loading so that if the header search context changes between when a module was originally built and when it is loaded we can rebuild it if necessary. For example, if module A imports module B first time: clang -I /path/to/A -I /path/to/B ... second time: clang -I /path/to/A -I /different/path/to/B ... will now rebuild A as expected. * in the case of inferred modules, we use the module map file that allowed the inference, not the __inferred_module.map file, since the inferred file path is the same for every inferred module. llvm-svn: 206201
2014-04-15 02:00:01 +08:00
// RUN: %clang_cc1 -fmodules -fdisable-module-hash -fmodules-cache-path=%t/modules-cache -I %S/Inputs/Headers -verify-pch %t/use_LibA.pch
libclang: report error code for bad PCH files This commit improves libclang to report the error condition when CXTranslationUnit can not be created because of a stale PCH file. This allows the caller, for example, to rebuild the PCH file and retry the request. There two are APIs in libclang that return a CXTranslationUnit and don't support reporting detailed errors (the only error condition is a NULL result). For these APIs, a second, superior, version is introduced -- clang_createTranslationUnit2 and clang_parseTranslationUnit2. These functions return a CXTranslationUnit indirectly and also return an error code. Old functions are still supported and are nothing more than convenience wrappers that ignore extended error codes. As a cleanup, this commit also categorizes some libclang errors in the functions I had to modify anyway. llvm-svn: 201249
2014-02-13 03:12:37 +08:00
// RUN: rm -f %t/modules-cache/LibA.pcm
Allow multiple modules with the same name to coexist in the module cache To differentiate between two modules with the same name, we will consider the path the module map file that they are defined by* part of the ‘key’ for looking up the precompiled module (pcm file). Specifically, this patch renames the precompiled module (pcm) files from cache-path/<module hash>/Foo.pcm to cache-path/<module hash>/Foo-<hash of module map path>.pcm In addition, I’ve taught the ASTReader to re-resolve the names of imported modules during module loading so that if the header search context changes between when a module was originally built and when it is loaded we can rebuild it if necessary. For example, if module A imports module B first time: clang -I /path/to/A -I /path/to/B ... second time: clang -I /path/to/A -I /different/path/to/B ... will now rebuild A as expected. * in the case of inferred modules, we use the module map file that allowed the inference, not the __inferred_module.map file, since the inferred file path is the same for every inferred module. llvm-svn: 206201
2014-04-15 02:00:01 +08:00
// RUN: not %clang_cc1 -fmodules -fdisable-module-hash -fmodules-cache-path=%t/modules-cache -I %S/Inputs/Headers -verify-pch %t/use_LibA.pch 2>&1 | FileCheck -check-prefix=VERIFY %s
// RUN: not c-index-test -test-load-source all -x c -fmodules -Xclang -fdisable-module-hash -fmodules-cache-path=%t/modules-cache -I %S/Inputs/Headers -include-pch %t/use_LibA.pch %s 2>&1 | FileCheck -check-prefix=INDEX %s
libclang: report error code for bad PCH files This commit improves libclang to report the error condition when CXTranslationUnit can not be created because of a stale PCH file. This allows the caller, for example, to rebuild the PCH file and retry the request. There two are APIs in libclang that return a CXTranslationUnit and don't support reporting detailed errors (the only error condition is a NULL result). For these APIs, a second, superior, version is introduced -- clang_createTranslationUnit2 and clang_parseTranslationUnit2. These functions return a CXTranslationUnit indirectly and also return an error code. Old functions are still supported and are nothing more than convenience wrappers that ignore extended error codes. As a cleanup, this commit also categorizes some libclang errors in the functions I had to modify anyway. llvm-svn: 201249
2014-02-13 03:12:37 +08:00
// VERIFY: fatal error: malformed or corrupted AST file: 'Unable to load module
// INDEX: {{^}}Failure: AST deserialization error occurred{{$}}