Mercurial > projects > dil

comparison trunk/src/dil/Expressions.d @ 539:3418027c3914

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added semantic() method to RealExpression. Added code to IntExpression.semantic().
author Aziz K?ksal <aziz.koeksal@gmail.com>
date Tue, 18 Dec 2007 22:46:07 +0100
parents db7913148b29
children 660684f559a4
comparison
equal deleted inserted replaced
538:d0d40bcca9c6 539:3418027c3914
746 assert(token.type == TOK.Int32); 746 assert(token.type == TOK.Int32);
747 } 747 }
748 this(token.ulong_, type); 748 this(token.ulong_, type);
749 } 749 }
750 750
751 Expression semantic(Scope scop) 751 Expression semantic(Scope)
752 { 752 {
753 if (type) 753 if (type)
754 return this; 754 return this;
755
756 if (number & 0x8000_0000_0000_0000)
757 type = Types.Ulong; // 0xFFFF_FFFF_FFFF_FFFF
758 else if (number & 0xFFFF_FFFF_0000_0000)
759 type = Types.Long; // 0x7FFF_FFFF_FFFF_FFFF
760 else if (number & 0x8000_0000)
761 type = Types.Uint; // 0xFFFF_FFFF
762 else
763 type = Types.Int; // 0x7FFF_FFFF
755 return this; 764 return this;
756 } 765 }
757 } 766 }
758 767
759 class RealExpression : Expression 768 class RealExpression : Expression
760 { 769 {
761 TOK type;
762 real number; 770 real number;
763 this(TOK type, real number) 771
772 this(real number, Type type)
764 { 773 {
765 mixin(set_kind); 774 mixin(set_kind);
766 this.number = number; 775 this.number = number;
767 this.type = type; 776 this.type = type;
777 }
778
779 this(Token* token)
780 {
781 auto type = Types.Float; // Most common case?
782 switch (token.type)
783 {
784 // case T.Float32:
785 // type = Types.Float; break;
786 case TOK.Float64:
787 type = Types.Double; break;
788 case TOK.Float80:
789 type = Types.Double; break;
790 case TOK.Imaginary32:
791 type = Types.Ifloat; break;
792 case TOK.Imaginary64:
793 type = Types.Idouble; break;
794 case TOK.Imaginary80:
795 type = Types.Ireal; break;
796 default:
797 assert(token.type == TOK.Float32);
798 }
799 this(token.real_, type);
800 }
801
802 Expression semantic(Scope)
803 {
804 if (type)
805 return this;
806 type = Types.Double;
807 return this;
768 } 808 }
769 } 809 }
770 810
771 class CharExpression : Expression 811 class CharExpression : Expression
772 { 812 {