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[clang][deps] Properly capture the global module and '\n' for all module directives #148685

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Merged
merged 6 commits into from
Jul 19, 2025
Merged

[clang][deps] Properly capture the global module and '\n' for all module directives #148685

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7a75927
[clang][deps] Recognize 'module;' in dependency directive scanner
naveen-seth Jul 14, 2025
25553f7
Add newline after 'module;' to be valid C++
naveen-seth Jul 14, 2025
586b438
[clang][deps] Properly capture the global module and '\n' for all mod…
naveen-seth Jul 16, 2025
e9a6b45
Address akyrtzi's review feedback
naveen-seth Jul 18, 2025
e755d18
For review only: additional `TryConsumeToken(tok::eod)`
naveen-seth Jul 18, 2025
0bc7245
Update Parser and Preprocessor to handle the added tok::eod
naveen-seth Jul 18, 2025
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7 changes: 7 additions & 0 deletions clang/lib/Lex/DependencyDirectivesScanner.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -728,6 +728,13 @@ bool Scanner::lexModule(const char *&First, const char *const End) {
return false;
break;
}
case ';': {
// Handle the global module fragment `module;`.
if (Id == "module" && !Export)
break;
skipLine(First, End);
return false;
}
case '<':
case '"':
break;
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9 changes: 5 additions & 4 deletions clang/unittests/Lex/DependencyDirectivesScannerTest.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1122,16 +1122,17 @@ ort \
)";
ASSERT_FALSE(
minimizeSourceToDependencyDirectives(Source, Out, Tokens, Directives));
EXPECT_STREQ("#include \"textual-header.h\"\nexport module m;"
EXPECT_STREQ("module;#include \"textual-header.h\"\nexport module m;"
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This needs a \n after the module; so that #include starts on a new line.

"exp\\\nort import:l[[rename]];"
"import<<=3;import a b d e d e f e;"
"import foo[[no_unique_address]];import foo();"
"import f(:sefse);import f(->a=3);"
"<TokBeforeEOF>\n",
Out.data());
ASSERT_EQ(Directives.size(), 11u);
EXPECT_EQ(Directives[0].Kind, pp_include);
EXPECT_EQ(Directives[1].Kind, cxx_export_module_decl);
ASSERT_EQ(Directives.size(), 12u);
EXPECT_EQ(Directives[0].Kind, cxx_module_decl);
EXPECT_EQ(Directives[1].Kind, pp_include);
EXPECT_EQ(Directives[2].Kind, cxx_export_module_decl);
}

TEST(MinimizeSourceToDependencyDirectivesTest, ObjCMethodArgs) {
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