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Diffstat (limited to 'clang/docs/LibASTMatchersReference.html')
| -rw-r--r-- | clang/docs/LibASTMatchersReference.html | 26 |
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diff --git a/clang/docs/LibASTMatchersReference.html b/clang/docs/LibASTMatchersReference.html index 255ec4271e3..47f2c8a489e 100644 --- a/clang/docs/LibASTMatchersReference.html +++ b/clang/docs/LibASTMatchersReference.html @@ -5728,6 +5728,32 @@ Example matches x (matcher = expr(hasType(cxxRecordDecl(hasName("X"))))) </pre></td></tr> +<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>></td><td class="name" onclick="toggle('ignoringElidableConstructorCall0')"><a name="ignoringElidableConstructorCall0Anchor">ignoringElidableConstructorCall</a></td><td>ast_matchers::Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> +<tr><td colspan="4" class="doc" id="ignoringElidableConstructorCall0"><pre>Matches expressions that match InnerMatcher that are possibly wrapped in an +elidable constructor. + +In C++17 copy elidable constructors are no longer being +generated in the AST as it is not permitted by the standard. They are +however part of the AST in C++14 and earlier. Therefore, to write a matcher +that works in all language modes, the matcher has to skip elidable +constructor AST nodes if they appear in the AST. This matcher can be used to +skip those elidable constructors. + +Given + +struct H {}; +H G(); +void f() { + H D = G(); +} + +``varDecl(hasInitializer(any( + ignoringElidableConstructorCall(callExpr()), + exprWithCleanups(ignoringElidableConstructorCall(callExpr()))))`` +matches ``H D = G()`` +</pre></td></tr> + + <tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>></td><td class="name" onclick="toggle('ignoringImpCasts0')"><a name="ignoringImpCasts0Anchor">ignoringImpCasts</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> <tr><td colspan="4" class="doc" id="ignoringImpCasts0"><pre>Matches expressions that match InnerMatcher after any implicit casts are stripped off. |
