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Adding parenType() and innerType() AST Matchers 

Updated docs and tests.

llvm-svn: 178487
This commit is contained in:
Edwin Vane 2013-04-01 18:33:34 +00:00
parent c2eddb0d02
commit ec0748068e
3 changed files with 77 additions and 0 deletions
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38
clang/docs/LibASTMatchersReference.html
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@ -1000,6 +1000,18 @@ memberPointerType()
</pre></td></tr>
<tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>&gt;</td><td class="name" onclick="toggle('parenTypeLoc0')"><a name="parenTypeLoc0Anchor">parenTypeLoc</a></td><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1ParenTypeLoc.html">ParenTypeLoc</a>&gt;...</td></tr>
<tr><td colspan="4" class="doc" id="parenTypeLoc0"><pre>Matches ParenType nodes.
Given
int (*ptr_to_array)[4];
int *array_of_ptrs[4];
varDecl(hasType(pointsTo(parenType()))) matches ptr_to_array but not
array_of_ptrs.
</pre></td></tr>
<tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>&gt;</td><td class="name" onclick="toggle('pointerTypeLoc0')"><a name="pointerTypeLoc0Anchor">pointerTypeLoc</a></td><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1PointerTypeLoc.html">PointerTypeLoc</a>&gt;...</td></tr>
<tr><td colspan="4" class="doc" id="pointerTypeLoc0"><pre>Matches pointer types.
@ -1267,6 +1279,18 @@ memberPointerType()
</pre></td></tr>
<tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>&gt;</td><td class="name" onclick="toggle('parenType0')"><a name="parenType0Anchor">parenType</a></td><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1ParenType.html">ParenType</a>&gt;...</td></tr>
<tr><td colspan="4" class="doc" id="parenType0"><pre>Matches ParenType nodes.
Given
int (*ptr_to_array)[4];
int *array_of_ptrs[4];
varDecl(hasType(pointsTo(parenType()))) matches ptr_to_array but not
array_of_ptrs.
</pre></td></tr>
<tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>&gt;</td><td class="name" onclick="toggle('pointerType0')"><a name="pointerType0Anchor">pointerType</a></td><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1PointerType.html">PointerType</a>&gt;...</td></tr>
<tr><td colspan="4" class="doc" id="pointerType0"><pre>Matches pointer types.
@ -2991,6 +3015,20 @@ nestedNameSpecifier(specifiesType(hasDeclaration(recordDecl(hasName("A")))))
</pre></td></tr>
<tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1ParenType.html">ParenType</a>&gt;</td><td class="name" onclick="toggle('innerType0')"><a name="innerType0Anchor">innerType</a></td><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>&gt;</td></tr>
<tr><td colspan="4" class="doc" id="innerType0"><pre>Matches ParenType nodes where the inner type is a specific type.
Given
int (*ptr_to_array)[4];
int (*ptr_to_func)(int);
varDecl(hasType(pointsTo(parenType(innerType(functionType()))))) matches
ptr_to_func but not ptr_to_array.
Usable as: Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1ParenType.html">ParenType</a>&gt;
</pre></td></tr>
<tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1PointerTypeLoc.html">PointerTypeLoc</a>&gt;</td><td class="name" onclick="toggle('pointeeLoc1')"><a name="pointeeLoc1Anchor">pointeeLoc</a></td><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>&gt;</td></tr>
<tr><td colspan="4" class="doc" id="pointeeLoc1"><pre>Narrows PointerType (and similar) matchers to those where the
pointee matches a given matcher.

26
clang/include/clang/ASTMatchers/ASTMatchers.h
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@ -2894,6 +2894,32 @@ AST_TYPE_TRAVERSE_MATCHER(hasDeducedType, getDeducedType);
/// matches "int (*f)(int)" and the type of "g".
AST_TYPE_MATCHER(FunctionType, functionType);
/// \brief Matches \c ParenType nodes.
///
/// Given
/// \code
/// int (*ptr_to_array)[4];
/// int *array_of_ptrs[4];
/// \endcode
///
/// \c varDecl(hasType(pointsTo(parenType()))) matches \c ptr_to_array but not
/// \c array_of_ptrs.
AST_TYPE_MATCHER(ParenType, parenType);
/// \brief Matches \c ParenType nodes where the inner type is a specific type.
///
/// Given
/// \code
/// int (*ptr_to_array)[4];
/// int (*ptr_to_func)(int);
/// \endcode
///
/// \c varDecl(hasType(pointsTo(parenType(innerType(functionType()))))) matches
/// \c ptr_to_func but not \c ptr_to_array.
///
/// Usable as: Matcher<ParenType>
AST_TYPE_TRAVERSE_MATCHER(innerType, getInnerType);
/// \brief Matches block pointer types, i.e. types syntactically represented as
/// "void (^)(int)".
///

13
clang/unittests/ASTMatchers/ASTMatchersTest.cpp
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@ -3387,6 +3387,19 @@ TEST(TypeMatching, MatchesFunctionTypes) {
EXPECT_TRUE(matches("void f(int i) {}", functionType()));
}
TEST(TypeMatching, MatchesParenType) {
EXPECT_TRUE(
matches("int (*array)[4];", varDecl(hasType(pointsTo(parenType())))));
EXPECT_TRUE(notMatches("int *array[4];", varDecl(hasType(parenType()))));
EXPECT_TRUE(matches(
"int (*ptr_to_func)(int);",
varDecl(hasType(pointsTo(parenType(innerType(functionType())))))));
EXPECT_TRUE(notMatches(
"int (*ptr_to_array)[4];",
varDecl(hasType(pointsTo(parenType(innerType(functionType())))))));
}
TEST(TypeMatching, PointerTypes) {
// FIXME: Reactive when these tests can be more specific (not matching
// implicit code on certain platforms), likely when we have hasDescendant for