Mercurial > projects > ddmd
view dmd/ThrowStatement.d @ 0:10317f0c89a5
Initial commit
author | korDen |
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date | Sat, 24 Oct 2009 08:42:06 +0400 |
parents | |
children | a8b50ff7f201 |
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module dmd.ThrowStatement; import dmd.Statement; import dmd.Expression; import dmd.Loc; import dmd.IRState; import dmd.InlineScanState; import dmd.HdrGenState; import dmd.OutBuffer; import dmd.Scope; import dmd.Expression; import dmd.FuncDeclaration; import dmd.BE; import dmd.backend.Util; import dmd.backend.Blockx; import dmd.backend.elem; import dmd.backend.RTLSYM; import dmd.backend.OPER; import dmd.backend.TYM; class ThrowStatement : Statement { Expression exp; this(Loc loc, Expression exp) { super(loc); this.exp = exp; } Statement syntaxCopy() { assert(false); } Statement semantic(Scope sc) { //printf("ThrowStatement::semantic()\n"); FuncDeclaration fd = sc.parent.isFuncDeclaration(); fd.hasReturnExp |= 2; if (sc.incontract) error("Throw statements cannot be in contracts"); exp = exp.semantic(sc); exp = resolveProperties(sc, exp); if (!exp.type.toBasetype().isClassHandle()) error("can only throw class objects, not type %s", exp.type.toChars()); return this; } void toCBuffer(OutBuffer buf, HdrGenState* hgs) { assert(false); } BE blockExit() { return BE.BEthrow; // obviously } Statement inlineScan(InlineScanState* iss) { if (exp) exp = exp.inlineScan(iss); return this; } void toIR(IRState* irs) { // throw(exp) Blockx *blx = irs.blx; incUsage(irs, loc); elem *e = exp.toElem(irs); static if (false) { e = el_bin(OPcall, TYvoid, el_var(rtlsym[RTLSYM_LTHROW]),e); } else { e = el_bin(OPcall, TYvoid, el_var(rtlsym[RTLSYM_THROW]),e); } block_appendexp(blx.curblock, e); } }