Changeset 6e09f211 for src/Common/PassVisitor.h

Timestamp:

Jun 15, 2017, 12:18:23 PM (7 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, aaron-thesis, arm-eh, ast-experimental, cleanup-dtors, deferred_resn, demangler, enum, forall-pointer-decay, jacob/cs343-translation, jenkins-sandbox, master, new-ast, new-ast-unique-expr, new-env, no_list, persistent-indexer, pthread-emulation, qualifiedEnum, resolv-new, with_gc

Children:

637568b, 7b6ca2e

Parents:

f146716

Message:

Pass visitor:

• added support for throw statment
• now resets skip children flag after reading it
• prototype for value guard alternative (Still un-tested)

File:

• src/Common/PassVisitor.h (modified) (3 diffs)

src/Common/PassVisitor.h

@@ -54 +54 @@
         virtual void visit( BranchStmt *branchStmt ) override final;
         virtual void visit( ReturnStmt *returnStmt ) override final;
+        virtual void visit( ThrowStmt *throwStmt ) override final;
         virtual void visit( TryStmt *tryStmt ) override final;
         virtual void visit( CatchStmt *catchStmt ) override final;
@@ -139 +140 @@
         virtual Statement* mutate( BranchStmt *branchStmt ) override final;
         virtual Statement* mutate( ReturnStmt *returnStmt ) override final;
+        virtual Statement* mutate( ThrowStmt *throwStmt ) override final;
         virtual Statement* mutate( TryStmt *returnStmt ) override final;
         virtual Statement* mutate( CatchStmt *catchStmt ) override final;
@@ -230 +232 @@
         std::list< Statement* > *       get_afterStmts () { return stmtsToAddAfter_impl ( pass, 0); }
         bool visit_children() { bool* skip = skip_children_impl(pass, 0); return ! (skip && *skip); }
+        void reset_visit() { bool* skip = skip_children_impl(pass, 0); if(skip) *skip = false; }
+
+        guard_value_impl init_guard() {
+                guard_value_impl guard;
+                auto at_cleanup = at_cleanup_impl(pass, 0);
+                if( at_cleanup ) {
+                        *at_cleanup = [&guard]( cleanup_func_t && func, void* val ) {
+                                guard.push( std::move( func ), val );
+                        };
+                }
+                return guard;
+        }
 };
 
+template<typename pass_type, typename T>
+void GuardValue( pass_type * pass, T& val ) {
+        pass->at_cleanup( [ val ]( void * newVal ) {
+                * static_cast< T * >( newVal ) = val;
+        }, static_cast< void * >( & val ) );
+}
+
 #include "PassVisitor.impl.h"