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comparison src/dil/ast/Expressions.d @ 821:09a64d96967a

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Started the interpreter. Made a couple changes in other parts -- CharExpression now has an IntExpression of a character type as its value member and its type is set accordingly.
author Jarrett Billingsley <jarrett.billingsley@gmail.com>
date Fri, 14 Mar 2008 11:01:05 -0400
parents bcb74c9b895c
children 451ede0105e0
comparison
equal deleted inserted replaced
819:438ed3a72c9d 821:09a64d96967a
660 mixin(copyMethod); 660 mixin(copyMethod);
661 } 661 }
662 662
663 class BoolExpression : Expression 663 class BoolExpression : Expression
664 { 664 {
665 IntExpression value; /// IntExpression of type bool.
666
665 this() 667 this()
666 { 668 {
667 mixin(set_kind); 669 mixin(set_kind);
668 } 670 }
669 671
670 bool toBool() 672 bool toBool()
671 { 673 {
672 assert(begin !is null); 674 assert(begin !is null);
673 return begin.kind == TOK.True ? true : false; 675 return begin.kind == TOK.True ? true : false;
674 } 676 }
675
676 Expression value; /// IntExpression of type int.
677 677
678 mixin(copyMethod); 678 mixin(copyMethod);
679 } 679 }
680 680
681 class IntExpression : Expression 681 class IntExpression : Expression
763 mixin(copyMethod); 763 mixin(copyMethod);
764 } 764 }
765 765
766 class CharExpression : Expression 766 class CharExpression : Expression
767 { 767 {
768 dchar character; 768 IntExpression value; // IntExpression of type Char/Wchar/Dchar.
769 // dchar character;
769 this(dchar character) 770 this(dchar character)
770 { 771 {
771 mixin(set_kind); 772 mixin(set_kind);
772 this.character = character; 773 // this.character = character;
774 if(character <= 0xFF)
775 this.value = new IntExpression(character, Types.Char);
776 else if(character <= 0xFFFF)
777 this.value = new IntExpression(character, Types.Wchar);
778 else
779 this.value = new IntExpression(character, Types.Dchar);
780
781 assert(this.value.type !is null);
782
783 this.type = this.value.type;
773 } 784 }
774 mixin(copyMethod); 785 mixin(copyMethod);
775 } 786 }
776 787
777 class StringExpression : Expression 788 class StringExpression : Expression