Mercurial > projects > ddmd
annotate dmd/ThrowStatement.d @ 187:b0d41ff5e0df
Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
| author | Abscissa |
|---|---|
| date | Tue, 07 Jun 2011 23:37:34 -0400 |
| parents | e3afd1303184 |
| children |
| 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 | |
|
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b0d41ff5e0df
Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
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23 import dmd.DDMDExtensions; |
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b0d41ff5e0df
Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
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24 |
| 0 | 25 class ThrowStatement : Statement |
| 26 { | |
|
187
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Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
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27 mixin insertMemberExtension!(typeof(this)); |
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Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
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28 |
| 0 | 29 Expression exp; |
| 30 | |
| 31 this(Loc loc, Expression exp) | |
| 32 { | |
| 178 | 33 register(); |
| 0 | 34 super(loc); |
| 35 this.exp = exp; | |
| 36 } | |
| 37 | |
| 72 | 38 override Statement syntaxCopy() |
| 0 | 39 { |
| 53 | 40 ThrowStatement s = new ThrowStatement(loc, exp.syntaxCopy()); |
| 41 return s; | |
| 0 | 42 } |
| 43 | |
| 72 | 44 override Statement semantic(Scope sc) |
| 0 | 45 { |
| 46 //printf("ThrowStatement::semantic()\n"); | |
| 47 | |
| 48 FuncDeclaration fd = sc.parent.isFuncDeclaration(); | |
| 49 fd.hasReturnExp |= 2; | |
| 50 | |
|
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dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
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51 version(DMDV1) { |
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60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
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52 // See bugzilla 3388. Should this be or not? |
| 0 | 53 if (sc.incontract) |
| 54 error("Throw statements cannot be in contracts"); | |
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dmdfe 2.037 first main iteration
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parents:
114
diff
changeset
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55 } |
| 0 | 56 exp = exp.semantic(sc); |
| 57 exp = resolveProperties(sc, exp); | |
| 58 if (!exp.type.toBasetype().isClassHandle()) | |
| 59 error("can only throw class objects, not type %s", exp.type.toChars()); | |
| 60 return this; | |
| 61 } | |
| 62 | |
| 72 | 63 override void toCBuffer(OutBuffer buf, HdrGenState* hgs) |
| 0 | 64 { |
| 174 | 65 buf.printf("throw "); |
| 66 exp.toCBuffer(buf, hgs); | |
| 67 buf.writeByte(';'); | |
| 68 buf.writenl(); | |
| 0 | 69 } |
| 70 | |
| 72 | 71 override BE blockExit() |
| 0 | 72 { |
| 73 return BE.BEthrow; // obviously | |
| 74 } | |
| 75 | |
| 72 | 76 override Statement inlineScan(InlineScanState* iss) |
| 0 | 77 { |
| 78 if (exp) | |
| 79 exp = exp.inlineScan(iss); | |
| 80 return this; | |
| 81 } | |
| 82 | |
| 72 | 83 override void toIR(IRState* irs) |
| 0 | 84 { |
| 85 // throw(exp) | |
| 86 | |
| 87 Blockx *blx = irs.blx; | |
| 88 | |
| 89 incUsage(irs, loc); | |
| 90 elem *e = exp.toElem(irs); | |
| 91 static if (false) { | |
| 92 e = el_bin(OPcall, TYvoid, el_var(rtlsym[RTLSYM_LTHROW]),e); | |
| 93 } else { | |
| 94 e = el_bin(OPcall, TYvoid, el_var(rtlsym[RTLSYM_THROW]),e); | |
| 95 } | |
| 96 block_appendexp(blx.curblock, e); | |
| 97 } | |
| 72 | 98 } |