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Ask user for relevant diagnostics when clang translation unit creation fails.

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Closes issue #450.
This commit is contained in:
Jacob Dufault 2018-02-13 21:23:35 -08:00
parent 71a55ce46b
commit aba38a9da1
2 changed files with 26 additions and 17 deletions
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18
src/clang_translation_unit.cc
View File

@ -93,24 +93,26 @@ std::unique_ptr<ClangTranslationUnit> ClangTranslationUnit::Create(
if (error_code != CXError_Success && cx_tu)
EmitDiagnostics(filepath, args, cx_tu);
auto make_msg = [&]() {
return "Please try running the following, identify which flag causes the "
"issue, and report a bug. cquery will then filter the flag for you "
" automatically:\n$ " + StringJoin(args, " ");
};
switch (error_code) {
case CXError_Success:
return MakeUnique<ClangTranslationUnit>(cx_tu);
case CXError_Failure:
LOG_S(ERROR) << "libclang generic failure for " << filepath
<< " with args " << StringJoin(args);
LOG_S(ERROR) << "libclang generic failure for " << filepath << ". " << make_msg();
return nullptr;
case CXError_Crashed:
LOG_S(ERROR) << "libclang crashed for " << filepath << " with args "
<< StringJoin(args);
LOG_S(ERROR) << "libclang crashed for " << filepath << ". " << make_msg();
return nullptr;
case CXError_InvalidArguments:
LOG_S(ERROR) << "libclang had invalid arguments for "
<< " with args " << StringJoin(args) << filepath;
LOG_S(ERROR) << "libclang had invalid arguments for " << filepath << ". " << make_msg();
return nullptr;
case CXError_ASTReadError:
LOG_S(ERROR) << "libclang had ast read error for " << filepath
<< " with args " << StringJoin(args);
LOG_S(ERROR) << "libclang had ast read error for " << filepath << ". " << make_msg();
return nullptr;
}

25
src/project.cc
View File

@ -265,7 +265,12 @@ Project::Entry GetCompilationEntryFromCompileCommandEntry(
if (!AnyStartsWith(result.args, "-Wno-unknown-warning-option"))
result.args.push_back("-Wno-unknown-warning-option");
// Using -fparse-all-comments enables documententation in the indexer and in
// We sometimes dump the command to logs and ask the user to run it. Include
// -fsyntax-only so they don't do a full compile.
if (!AnyStartsWith(result.args, "-fsyntax-only"))
result.args.push_back("-fsyntax-only");
// Using -fparse-all-comments enables documentation in the indexer and in
// code completion.
if (init_opts->index.comments > 1 &&
!AnyStartsWith(result.args, "-fparse-all-comments")) {
@ -598,28 +603,28 @@ TEST_SUITE("Project") {
/* expected */
{"clang", "-working-directory", "/dir/", "-xc++", "-std=c++14",
"-lstdc++", "&/dir/myfile.cc", "-resource-dir=/w/resource_dir/",
"-Wno-unknown-warning-option", "-fparse-all-comments"});
"-Wno-unknown-warning-option", "-fsyntax-only", "-fparse-all-comments"});
CheckFlags(
/* raw */ {"clang.exe"},
/* expected */
{"clang.exe", "-working-directory", "/dir/", "-xc++", "-std=c++14",
"-resource-dir=/w/resource_dir/", "-Wno-unknown-warning-option",
"-fparse-all-comments"});
"-fsyntax-only", "-fparse-all-comments"});
CheckFlags(
/* raw */ {"goma", "clang"},
/* expected */
{"clang", "-working-directory", "/dir/", "-xc++", "-std=c++14",
"-resource-dir=/w/resource_dir/", "-Wno-unknown-warning-option",
"-fparse-all-comments"});
"-fsyntax-only", "-fparse-all-comments"});
CheckFlags(
/* raw */ {"goma", "clang", "--foo"},
/* expected */
{"clang", "-working-directory", "/dir/", "-xc++", "-std=c++14", "--foo",
"-resource-dir=/w/resource_dir/", "-Wno-unknown-warning-option",
"-fparse-all-comments"});
"-fsyntax-only", "-fparse-all-comments"});
}
TEST_CASE("Windows path normalization") {
@ -628,7 +633,7 @@ TEST_SUITE("Project") {
/* expected */
{"clang", "-working-directory", "E:/workdir", "-xc++", "-std=c++14",
"&E:/workdir/bar.cc", "-resource-dir=/w/resource_dir/",
"-Wno-unknown-warning-option", "-fparse-all-comments"});
"-Wno-unknown-warning-option", "-fsyntax-only", "-fparse-all-comments"});
CheckFlags(
"E:/workdir", "E:/workdir/bar.cc",
@ -636,7 +641,7 @@ TEST_SUITE("Project") {
/* expected */
{"clang", "-working-directory", "E:/workdir", "-xc++", "-std=c++14",
"&E:/workdir/bar.cc", "-resource-dir=/w/resource_dir/",
"-Wno-unknown-warning-option", "-fparse-all-comments"});
"-Wno-unknown-warning-option", "-fsyntax-only", "-fparse-all-comments"});
}
TEST_CASE("Path in args") {
@ -646,7 +651,7 @@ TEST_SUITE("Project") {
/* expected */
{"cc", "-working-directory", "/home/user", "-xc", "-std=gnu11", "-O0",
"&/home/user/foo/bar.c", "-resource-dir=/w/resource_dir/",
"-Wno-unknown-warning-option", "-fparse-all-comments"});
"-Wno-unknown-warning-option", "-fsyntax-only", "-fparse-all-comments"});
}
TEST_CASE("Implied binary") {
@ -656,7 +661,7 @@ TEST_SUITE("Project") {
/* expected */
{"clang++", "-working-directory", "/home/user", "-xc++", "-std=c++14",
"-DDONT_IGNORE_ME", "-resource-dir=/w/resource_dir/",
"-Wno-unknown-warning-option", "-fparse-all-comments"});
"-Wno-unknown-warning-option", "-fsyntax-only", "-fparse-all-comments"});
}
// Checks flag parsing for a random chromium file in comparison to what
@ -1007,6 +1012,7 @@ TEST_SUITE("Project") {
"lock_screen_sanity_unittest.cc",
"-resource-dir=/w/resource_dir/",
"-Wno-unknown-warning-option",
"-fsyntax-only",
"-fparse-all-comments"});
}
@ -1332,6 +1338,7 @@ TEST_SUITE("Project") {
"&/w/c/s/out/Release/../../apps/app_lifetime_monitor.cc",
"-resource-dir=/w/resource_dir/",
"-Wno-unknown-warning-option",
"-fsyntax-only",
"-fparse-all-comments"});
}