Changeset 46da46b for src/Parser

Timestamp:

May 2, 2023, 3:44:31 AM (2 years ago)

Author:

Fangren Yu <f37yu@…>

Branches:

ast-experimental, master

Children:

0c840fc

Parents:

1ab773e0

Message:

current progress

Location:

src/Parser

Files:

• ExpressionNode.cc (modified) (1 diff)
• ParseNode.h (modified) (1 diff)
• parser.yy (modified) (1 diff)

src/Parser/ExpressionNode.cc

@@ -544 +544 @@
 }; // OperName
 
-Expression * build_cast( DeclarationNode * decl_node, ExpressionNode * expr_node ) {
+Expression * build_cast( DeclarationNode * decl_node, ExpressionNode * expr_node, CastExpr::CastKind kind ) {
         Type * targetType = maybeMoveBuildType( decl_node );
         if ( dynamic_cast< VoidType * >( targetType ) ) {
                 delete targetType;
-                return new CastExpr( maybeMoveBuild< Expression >(expr_node), false );
+                return new CastExpr( maybeMoveBuild< Expression >(expr_node), false, kind );
         } else {
-                return new CastExpr( maybeMoveBuild< Expression >(expr_node), targetType, false );
+                return new CastExpr( maybeMoveBuild< Expression >(expr_node), targetType, false, kind );
         } // if
 } // build_cast

src/Parser/ParseNode.h

@@ -189 +189 @@
 DimensionExpr * build_dimensionref( const std::string * name );
 
-Expression * build_cast( DeclarationNode * decl_node, ExpressionNode * expr_node );
+Expression * build_cast( DeclarationNode * decl_node, ExpressionNode * expr_node, CastExpr::CastKind kind = CastExpr::Default );
 Expression * build_keyword_cast( AggregateDecl::Aggregate target, ExpressionNode * expr_node );
 Expression * build_virtual_cast( DeclarationNode * decl_node, ExpressionNode * expr_node );

src/Parser/parser.yy

@@ -905 +905 @@
                 { $$ = new ExpressionNode( new VirtualCastExpr( maybeMoveBuild<Expression>( $5 ), maybeMoveBuildType( $3 ) ) ); }
         | '(' RETURN type_no_function ')' cast_expression       // CFA
-                { SemanticError( yylloc, "Return cast is currently unimplemented." ); $$ = nullptr; }
+                { $$ = new ExpressionNode( build_cast( $3, $5, CastExpr::Return ) ); }
         | '(' COERCE type_no_function ')' cast_expression       // CFA
                 { SemanticError( yylloc, "Coerce cast is currently unimplemented." ); $$ = nullptr; }