Changeset 2d2df9f

Timestamp:

Feb 20, 2019, 10:02:08 PM (6 years ago)

Author:

Peter A. Buhr <pabuhr@…>

Branches:

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

Children:

1b54b54

Parents:

96df1329

Message:

add default (empty) fields to for control

File:

• src/Parser/parser.yy (modified) (3 diffs)

src/Parser/parser.yy

@@ -10 +10 @@
 // Created On       : Sat Sep  1 20:22:55 2001
 // Last Modified By : Peter A. Buhr
-// Last Modified On : Thu Feb 14 22:23:13 2019
-// Update Count     : 4217
+// Last Modified On : Wed Feb 20 17:53:55 2019
+// Update Count     : 4231
 //
 
@@ -191 +191 @@
         return new ForCtrl(
                 distAttr( DeclarationNode::newTypeof( type, true ), DeclarationNode::newName( index )->addInitializer( new InitializerNode( start ) ) ),
-                new ExpressionNode( build_binary_val( compop, new ExpressionNode( build_varref( new string( *index ) ) ), comp ) ),
-                new ExpressionNode( build_binary_val( compop == OperKinds::LThan || compop == OperKinds::LEThan ? // choose += or -= for upto/downto
-                                                                                          OperKinds::PlusAssn : OperKinds::MinusAssn, new ExpressionNode( build_varref( new string( *index ) ) ), inc ) ) );
+                // NULL comp/inc => leave blank
+                comp ? new ExpressionNode( build_binary_val( compop, new ExpressionNode( build_varref( new string( *index ) ) ), comp ) ) : 0,
+                inc ? new ExpressionNode( build_binary_val( compop == OperKinds::LThan || compop == OperKinds::LEThan ? // choose += or -= for upto/downto
+                                                        OperKinds::PlusAssn : OperKinds::MinusAssn, new ExpressionNode( build_varref( new string( *index ) ) ), inc ) ) : 0 );
 } // forCtrl
 
@@ -1168 +1169 @@
         | comma_expression ';' comma_expression inclexcl comma_expression '~' comma_expression // CFA
                 { $$ = forCtrl( $3, $1, $3->clone(), $4, $5, $7 ); }
+        | comma_expression ';' comma_expression '~' '@' '~' comma_expression // CFA
+                { $$ = forCtrl( $3, $1, $3->clone(), OperKinds::LThan, nullptr, $7 ); }
+        | comma_expression ';' comma_expression '~' '@' '~' '@' // CFA
+                { $$ = forCtrl( $3, $1, $3->clone(), OperKinds::LThan, nullptr, nullptr ); }
         ;