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Make isExternC work on VarDecls too.

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llvm-svn: 277712
This commit is contained in:
Benjamin Kramer 2016-08-04 10:02:03 +00:00
parent 54a5486918
commit 87e6d99487
3 changed files with 20 additions and 1 deletions
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12
clang/docs/LibASTMatchersReference.html
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@ -3441,6 +3441,18 @@ Usable as: Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1Funct
</pre></td></tr>
<tr><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>&gt;</td><td class="name" onclick="toggle('isExternC1')"><a name="isExternC1Anchor">isExternC</a></td><td></td></tr>
<tr><td colspan="4" class="doc" id="isExternC1"><pre>Matches extern "C" function declarations.
Given:
extern "C" void f() {}
extern "C" { void g() {} }
void h() {}
functionDecl(isExternC())
matches the declaration of f and g, but not the declaration h
</pre></td></tr>
<tr><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>&gt;</td><td class="name" onclick="toggle('isTemplateInstantiation1')"><a name="isTemplateInstantiation1Anchor">isTemplateInstantiation</a></td><td></td></tr>
<tr><td colspan="4" class="doc" id="isTemplateInstantiation1"><pre>Matches template instantiations of function, class, or static
member variable template instantiations.

3
clang/include/clang/ASTMatchers/ASTMatchers.h
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@ -3342,7 +3342,8 @@ AST_MATCHER_P(FunctionDecl, returns,
/// \endcode
/// functionDecl(isExternC())
/// matches the declaration of f and g, but not the declaration h
AST_MATCHER(FunctionDecl, isExternC) {
AST_POLYMORPHIC_MATCHER(isExternC, AST_POLYMORPHIC_SUPPORTED_TYPES(FunctionDecl,
VarDecl)) {
return Node.isExternC();
}

6
clang/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp
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@ -842,6 +842,12 @@ TEST(IsExternC, MatchesExternCFunctionDeclarations) {
EXPECT_TRUE(notMatches("void f() {}", functionDecl(isExternC())));
}
TEST(IsExternC, MatchesExternCVariableDeclarations) {
EXPECT_TRUE(matches("extern \"C\" int i;", varDecl(isExternC())));
EXPECT_TRUE(matches("extern \"C\" { int i; }", varDecl(isExternC())));
EXPECT_TRUE(notMatches("int i;", varDecl(isExternC())));
}
TEST(IsDefaulted, MatchesDefaultedFunctionDeclarations) {
EXPECT_TRUE(notMatches("class A { ~A(); };",
functionDecl(hasName("~A"), isDefaulted())));