Mercurial > projects > ddmd
view dmd/MulExp.d @ 63:cab4c37afb89
A bunch of implementations
author | korDen |
---|---|
date | Mon, 23 Aug 2010 16:52:24 +0400 |
parents | 832f71e6f96c |
children | 2e2a5c3f943a |
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module dmd.MulExp; import dmd.Expression; import dmd.Identifier; import dmd.backend.elem; import dmd.InterState; import dmd.OutBuffer; import dmd.NegExp; import dmd.Loc; import dmd.Id; import dmd.Scope; import dmd.IRState; import dmd.BinExp; import dmd.ArrayTypes; import dmd.TOK; import dmd.Type; import dmd.TY; import dmd.expression.Util; import dmd.expression.Mul; import dmd.backend.OPER; import dmd.backend.Util; class MulExp : BinExp { this(Loc loc, Expression e1, Expression e2) { super(loc, TOK.TOKmul, MulExp.sizeof, e1, e2); } Expression semantic(Scope sc) { Expression e; static if (false) { printf("MulExp.semantic() %s\n", toChars()); } if (type) { return this; } BinExp.semanticp(sc); e = op_overload(sc); if (e) return e; typeCombine(sc); if (e1.op != TOKslice && e2.op != TOKslice) { e1.checkArithmetic(); e2.checkArithmetic(); } if (type.isfloating()) { Type t1 = e1.type; Type t2 = e2.type; if (t1.isreal()) { type = t2; } else if (t2.isreal()) { type = t1; } else if (t1.isimaginary()) { if (t2.isimaginary()) { switch (t1.ty) { case Timaginary32: type = Type.tfloat32; break; case Timaginary64: type = Type.tfloat64; break; case Timaginary80: type = Type.tfloat80; break; default: assert(0); } // iy * iv = -yv e1.type = type; e2.type = type; Expression ee = new NegExp(loc, this); ee = ee.semantic(sc); return ee; } else type = t2; // t2 is complex } else if (t2.isimaginary()) { type = t1; // t1 is complex } } return this; } Expression optimize(int result) { Expression e; //printf("MulExp.optimize(result = %d) %s\n", result, toChars()); e1 = e1.optimize(result); e2 = e2.optimize(result); if (e1.isConst() == 1 && e2.isConst() == 1) { e = Mul(type, e1, e2); } else e = this; return e; } Expression interpret(InterState istate) { assert(false); } void buildArrayIdent(OutBuffer buf, Expressions arguments) { Exp_buildArrayIdent(buf, arguments, "Mul"); } Expression buildArrayLoop(Arguments fparams) { /* Evaluate assign expressions left to right */ Expression ex1 = e1.buildArrayLoop(fparams); Expression ex2 = e2.buildArrayLoop(fparams); Expression e = new MulExp(Loc(0), ex1, ex2); return e; } bool isCommutative() { return true; } Identifier opId() { return Id.mul; } Identifier opId_r() { return Id.mul_r; } elem* toElem(IRState* irs) { return toElemBin(irs,OPmul); } }