Mercurial > projects > ddmd
annotate dmd/ThrowStatement.d @ 174:af724d3510d7
lot os toCBuffer methods implemented
moved shared Type.* stuff into Global
| author | korDen |
|---|---|
| date | Sun, 10 Oct 2010 03:47:23 +0400 |
| parents | 60bb0fe4563e |
| children | e3afd1303184 |
| rev | line source |
|---|---|
| 0 | 1 module dmd.ThrowStatement; |
| 2 | |
| 114 | 3 import dmd.common; |
| 0 | 4 import dmd.Statement; |
| 5 import dmd.Expression; | |
| 6 import dmd.Loc; | |
| 7 import dmd.IRState; | |
| 8 import dmd.InlineScanState; | |
| 9 import dmd.HdrGenState; | |
| 10 import dmd.OutBuffer; | |
| 11 import dmd.Scope; | |
| 12 import dmd.Expression; | |
| 13 import dmd.FuncDeclaration; | |
| 14 import dmd.BE; | |
| 15 | |
| 16 import dmd.backend.Util; | |
| 17 import dmd.backend.Blockx; | |
| 18 import dmd.backend.elem; | |
| 19 import dmd.backend.RTLSYM; | |
| 20 import dmd.backend.OPER; | |
| 21 import dmd.backend.TYM; | |
| 22 | |
| 23 class ThrowStatement : Statement | |
| 24 { | |
| 25 Expression exp; | |
| 26 | |
| 27 this(Loc loc, Expression exp) | |
| 28 { | |
| 29 super(loc); | |
| 30 this.exp = exp; | |
| 31 } | |
| 32 | |
| 72 | 33 override Statement syntaxCopy() |
| 0 | 34 { |
| 53 | 35 ThrowStatement s = new ThrowStatement(loc, exp.syntaxCopy()); |
| 36 return s; | |
| 0 | 37 } |
| 38 | |
| 72 | 39 override Statement semantic(Scope sc) |
| 0 | 40 { |
| 41 //printf("ThrowStatement::semantic()\n"); | |
| 42 | |
| 43 FuncDeclaration fd = sc.parent.isFuncDeclaration(); | |
| 44 fd.hasReturnExp |= 2; | |
| 45 | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
46 version(DMDV1) { |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
47 // See bugzilla 3388. Should this be or not? |
| 0 | 48 if (sc.incontract) |
| 49 error("Throw statements cannot be in contracts"); | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
50 } |
| 0 | 51 exp = exp.semantic(sc); |
| 52 exp = resolveProperties(sc, exp); | |
| 53 if (!exp.type.toBasetype().isClassHandle()) | |
| 54 error("can only throw class objects, not type %s", exp.type.toChars()); | |
| 55 return this; | |
| 56 } | |
| 57 | |
| 72 | 58 override void toCBuffer(OutBuffer buf, HdrGenState* hgs) |
| 0 | 59 { |
| 174 | 60 buf.printf("throw "); |
| 61 exp.toCBuffer(buf, hgs); | |
| 62 buf.writeByte(';'); | |
| 63 buf.writenl(); | |
| 0 | 64 } |
| 65 | |
| 72 | 66 override BE blockExit() |
| 0 | 67 { |
| 68 return BE.BEthrow; // obviously | |
| 69 } | |
| 70 | |
| 72 | 71 override Statement inlineScan(InlineScanState* iss) |
| 0 | 72 { |
| 73 if (exp) | |
| 74 exp = exp.inlineScan(iss); | |
| 75 return this; | |
| 76 } | |
| 77 | |
| 72 | 78 override void toIR(IRState* irs) |
| 0 | 79 { |
| 80 // throw(exp) | |
| 81 | |
| 82 Blockx *blx = irs.blx; | |
| 83 | |
| 84 incUsage(irs, loc); | |
| 85 elem *e = exp.toElem(irs); | |
| 86 static if (false) { | |
| 87 e = el_bin(OPcall, TYvoid, el_var(rtlsym[RTLSYM_LTHROW]),e); | |
| 88 } else { | |
| 89 e = el_bin(OPcall, TYvoid, el_var(rtlsym[RTLSYM_THROW]),e); | |
| 90 } | |
| 91 block_appendexp(blx.curblock, e); | |
| 92 } | |
| 72 | 93 } |