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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - hasDeclaration matcher doesn't match QualType wrapping ElaboratedType or TemplateSpecializationType"
href="https://llvm.org/bugs/show_bug.cgi?id=30331">30331</a>
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<th>Summary</th>
<td>hasDeclaration matcher doesn't match QualType wrapping ElaboratedType or TemplateSpecializationType
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>lukasza@chromium.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>This test fails at ToT:
TEST(HasDeclaration, QualTypeSpecializedTypeAndTemplateSpecializationType) {
std::string input =
"namespace Namespace {\n"
"template<typename T>\n"
"class Template {\n"
" public:\n"
" void Method() {}\n"
"};\n"
"} // namespace Namespace\n"
"template <typename U>\n"
"void Function(Namespace::Template<U> param) {\n"
" param.Method();\n"
"};\n";
// hasDeclaration should see through:
// 1. from ElaboratedType (Namespace::MyTemplate<U>) to
// TemplateSpecializationType (MyTemplate<U>)
// 2. from TemplateSpecializationType (MyTemplate<U>)
// to TemplateDecl (MyTemplate<T>).
EXPECT_TRUE(matches(input, parmVarDecl(
hasName("param"),
hasType(qualType(hasDeclaration(decl(anything())))))));
}
The test failure is unexpected, because a parmVarDecl's type should always have
a declaration (right?).</pre>
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