hwright created this revision.
hwright added a reviewer: aaron.ballman.
hwright added a project: clang.
Herald added a subscriber: cfe-commits.
Much like `hasArg` for various call expressions, this allows `LibTooling` users
to match against a member of an initializer list.
This is currently being used as part of the `abseil-duration-scale` clang-tidy
check.
Repository:
rC Clang
https://reviews.llvm.org/D56090
Files:
include/clang/ASTMatchers/ASTMatchers.h
Index: include/clang/ASTMatchers/ASTMatchers.h
===================================================================
--- include/clang/ASTMatchers/ASTMatchers.h
+++ include/clang/ASTMatchers/ASTMatchers.h
@@ -3514,6 +3514,20 @@
*Node.getArg(N)->IgnoreParenImpCasts(), Finder, Builder));
}
+/// Matches the n'th item of an initializer list expression.
+///
+/// Example matches y.
+/// (matcher = initListExpr(hasInit(0, expr())))
+/// \code
+/// int x{y}.
+/// \endcode
+AST_MATCHER_P2(InitListExpr, hasInit, unsigned, N,
+ ast_matchers::internal::Matcher<Expr>, InnerMatcher) {
+ return N < Node.getNumInits() &&
+ InnerMatcher.matches(*Node.getInit(N)->IgnoreParenImpCasts(), Finder,
+ Builder);
+}
+
/// Matches declaration statements that contain a specific number of
/// declarations.
///
Index: include/clang/ASTMatchers/ASTMatchers.h
===================================================================
--- include/clang/ASTMatchers/ASTMatchers.h
+++ include/clang/ASTMatchers/ASTMatchers.h
@@ -3514,6 +3514,20 @@
*Node.getArg(N)->IgnoreParenImpCasts(), Finder, Builder));
}
+/// Matches the n'th item of an initializer list expression.
+///
+/// Example matches y.
+/// (matcher = initListExpr(hasInit(0, expr())))
+/// \code
+/// int x{y}.
+/// \endcode
+AST_MATCHER_P2(InitListExpr, hasInit, unsigned, N,
+ ast_matchers::internal::Matcher<Expr>, InnerMatcher) {
+ return N < Node.getNumInits() &&
+ InnerMatcher.matches(*Node.getInit(N)->IgnoreParenImpCasts(), Finder,
+ Builder);
+}
+
/// Matches declaration statements that contain a specific number of
/// declarations.
///
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