Introduce Decl::hasBody() and FunctionDecl::hasBody() and use them instead of getBody() when we are just checking the existence of a body, to avoid de-serialization of the body from PCH.
Makes de-serialization of the function body even more "lazier".
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107768 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/AST/Decl.h b/include/clang/AST/Decl.h
index 940f1b9..d5a7ec0 100644
--- a/include/clang/AST/Decl.h
+++ b/include/clang/AST/Decl.h
@@ -1227,11 +1227,25 @@
EndRangeLoc = E;
}
+ /// \brief Returns true if the function has a body (definition). The
+ /// function body might be in any of the (re-)declarations of this
+ /// function. The variant that accepts a FunctionDecl pointer will
+ /// set that function declaration to the actual declaration
+ /// containing the body (if there is one).
+ bool hasBody(const FunctionDecl *&Definition) const;
+
+ virtual bool hasBody() const {
+ const FunctionDecl* Definition;
+ return hasBody(Definition);
+ }
+
/// getBody - Retrieve the body (definition) of the function. The
/// function body might be in any of the (re-)declarations of this
/// function. The variant that accepts a FunctionDecl pointer will
/// set that function declaration to the actual declaration
/// containing the body (if there is one).
+ /// NOTE: For checking if there is a body, use hasBody() instead, to avoid
+ /// unnecessary PCH de-serialization of the body.
Stmt *getBody(const FunctionDecl *&Definition) const;
virtual Stmt *getBody() const {
diff --git a/include/clang/AST/DeclBase.h b/include/clang/AST/DeclBase.h
index f4d76f5..317db01 100644
--- a/include/clang/AST/DeclBase.h
+++ b/include/clang/AST/DeclBase.h
@@ -488,6 +488,10 @@
/// top-level Stmt* of that body. Otherwise this method returns null.
virtual Stmt* getBody() const { return 0; }
+ /// \brief Returns true if this Decl represents a declaration for a body of
+ /// code, such as a function or method definition.
+ virtual bool hasBody() const { return getBody() != 0; }
+
/// getCompoundBody - Returns getBody(), dyn_casted to a CompoundStmt.
CompoundStmt* getCompoundBody() const;