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-rw-r--r--include/clang/AST/Expr.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/clang/AST/Expr.h b/include/clang/AST/Expr.h
index 3db866bcde..39a51bc1f4 100644
--- a/include/clang/AST/Expr.h
+++ b/include/clang/AST/Expr.h
@@ -119,6 +119,10 @@ public:
/// isConstantExpr - Return true if this expression is a valid constant expr.
bool isConstantExpr(ASTContext &Ctx, SourceLocation *Loc) const;
+ /// tryEvaluate - Return true if this is a constant which we can fold using
+ /// any crazy technique (that has nothing to do with language standards) that
+ /// we want to. If this function returns true, it returns the folded constant
+ /// in Result.
bool tryEvaluate(APValue& Result, ASTContext &Ctx) const;
/// hasGlobalStorage - Return true if this expression has static storage