Move IgnoreParenCasts to be a method on Expr.
llvm-svn: 47040
diff --git a/clang/AST/Expr.cpp b/clang/AST/Expr.cpp
index 00ff897..c7a2005 100644
--- a/clang/AST/Expr.cpp
+++ b/clang/AST/Expr.cpp
@@ -474,6 +474,23 @@
return E;
}
+/// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr
+/// or CastExprs or ImplicitCastExprs, returning their operand.
+Expr *Expr::IgnoreParenCasts() {
+ Expr *E = this;
+ while (true) {
+ if (ParenExpr *P = dyn_cast<ParenExpr>(E))
+ E = P->getSubExpr();
+ else if (CastExpr *P = dyn_cast<CastExpr>(E))
+ E = P->getSubExpr();
+ else if (ImplicitCastExpr *P = dyn_cast<ImplicitCastExpr>(E))
+ E = P->getSubExpr();
+ else
+ return E;
+ }
+}
+
+
bool Expr::isConstantExpr(ASTContext &Ctx, SourceLocation *Loc) const {
switch (getStmtClass()) {
default: