Changeset 148ba7d for src/AST

Timestamp:

Oct 25, 2021, 2:29:16 PM (3 years ago)

Author:

Andrew Beach <ajbeach@…>

Branches:

ADT, ast-experimental, enum, forall-pointer-decay, master, pthread-emulation, qualifiedEnum

Children:

c600df1

Parents:

a36eb2d

Message:

Added a return value to WithGuards::GuardValue? so you can save the old value and set a new one in one statement.

File:

• src/AST/Pass.hpp (modified) (1 diff)

src/AST/Pass.hpp ¶

@@ -348 +348 @@
 
         /// When this node is finished being visited, restore the value of a variable
+        /// You may assign to the return value to set the new value in the same statement.
         template< typename T >
-        void GuardValue( T& val ) {
+        T& GuardValue( T& val ) {
                 at_cleanup( [ val ]( void * newVal ) {
                         * static_cast< T * >( newVal ) = val;
                 }, static_cast< void * >( & val ) );
+                return val;
         }