forked from OSchip/llvm-project
[ASTMatchers] Add an isMain() matcher
Differential Revision: https://reviews.llvm.org/D49615 llvm-svn: 337761
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@ -2919,6 +2919,12 @@ namespaceDecl(isInline()) will match n::m.
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</pre></td></tr>
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<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('isMain0')"><a name="isMain0Anchor">isMain</a></td><td></td></tr>
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<tr><td colspan="4" class="doc" id="isMain0"><pre>Determines whether the function is "main", which is the entry point
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into an executable program.
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</pre></td></tr>
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<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('isNoReturn0')"><a name="isNoReturn0Anchor">isNoReturn</a></td><td></td></tr>
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<tr><td colspan="4" class="doc" id="isNoReturn0"><pre>Matches FunctionDecls that have a noreturn attribute.
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@ -616,6 +616,12 @@ AST_MATCHER_P(FieldDecl, hasInClassInitializer, internal::Matcher<Expr>,
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InnerMatcher.matches(*Initializer, Finder, Builder));
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}
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/// Determines whether the function is "main", which is the entry point
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/// into an executable program.
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AST_MATCHER(FunctionDecl, isMain) {
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return Node.isMain();
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}
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/// Matches the specialized template of a specialization declaration.
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///
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/// Given
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@ -359,6 +359,7 @@ RegistryMaps::RegistryMaps() {
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REGISTER_MATCHER(isInTemplateInstantiation);
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REGISTER_MATCHER(isLambda);
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REGISTER_MATCHER(isListInitialization);
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REGISTER_MATCHER(isMain);
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REGISTER_MATCHER(isMemberInitializer);
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REGISTER_MATCHER(isMoveAssignmentOperator);
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REGISTER_MATCHER(isMoveConstructor);
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@ -2158,5 +2158,13 @@ TEST(IsAssignmentOperator, Basic) {
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notMatches("void x() { int a; if(a == 0) return; }", BinAsgmtOperator));
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}
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TEST(Matcher, isMain) {
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EXPECT_TRUE(
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matches("int main() {}", functionDecl(isMain())));
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EXPECT_TRUE(
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notMatches("int main2() {}", functionDecl(isMain())));
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}
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} // namespace ast_matchers
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} // namespace clang
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