Mercurial > projects > ddmd
annotate dmd/ExpStatement.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.ExpStatement; |
| 2 | |
| 114 | 3 import dmd.common; |
| 0 | 4 import dmd.Loc; |
| 5 import dmd.Statement; | |
| 6 import dmd.AssertExp; | |
| 7 import dmd.Expression; | |
| 8 import dmd.OutBuffer; | |
| 9 import dmd.HdrGenState; | |
| 10 import dmd.Scope; | |
| 11 import dmd.InterState; | |
| 12 import dmd.InlineCostState; | |
| 13 import dmd.InlineDoState; | |
| 14 import dmd.InlineScanState; | |
| 15 import dmd.IRState; | |
| 16 import dmd.BE; | |
| 17 import dmd.TOK; | |
| 63 | 18 import dmd.GlobalExpressions; |
| 0 | 19 import dmd.DeclarationStatement; |
|
16
5c9b78899f5d
Implemented methods for Tuples, fixed some linking issues.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
20 import dmd.Util : printf; |
| 0 | 21 |
| 22 import dmd.backend.Blockx; | |
| 23 import dmd.backend.Util; | |
| 24 | |
|
187
b0d41ff5e0df
Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
Abscissa
parents:
178
diff
changeset
|
25 import dmd.DDMDExtensions; |
|
b0d41ff5e0df
Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
Abscissa
parents:
178
diff
changeset
|
26 |
| 0 | 27 class ExpStatement : Statement |
| 28 { | |
|
187
b0d41ff5e0df
Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
Abscissa
parents:
178
diff
changeset
|
29 mixin insertMemberExtension!(typeof(this)); |
|
b0d41ff5e0df
Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
Abscissa
parents:
178
diff
changeset
|
30 |
| 0 | 31 Expression exp; |
| 32 | |
| 33 this(Loc loc, Expression exp) | |
| 34 { | |
| 178 | 35 register(); |
| 0 | 36 super(loc); |
| 37 this.exp = exp; | |
| 38 } | |
| 39 | |
| 178 | 40 /* |
| 41 ~this() | |
| 42 { | |
| 43 delete exp; | |
| 44 } | |
| 45 */ | |
| 72 | 46 override Statement syntaxCopy() |
| 0 | 47 { |
| 48 Expression e = exp ? exp.syntaxCopy() : null; | |
| 49 ExpStatement es = new ExpStatement(loc, e); | |
| 50 return es; | |
| 51 } | |
| 52 | |
| 72 | 53 override void toCBuffer(OutBuffer buf, HdrGenState* hgs) |
| 0 | 54 { |
| 55 if (exp) | |
| 56 exp.toCBuffer(buf, hgs); | |
| 57 buf.writeByte(';'); | |
| 58 if (!hgs.FLinit.init) | |
| 59 buf.writenl(); | |
| 60 } | |
| 61 | |
| 72 | 62 override Statement semantic(Scope sc) |
| 0 | 63 { |
| 64 if (exp) | |
| 65 { | |
| 66 //printf("ExpStatement::semantic() %s\n", exp->toChars()); | |
| 67 exp = exp.semantic(sc); | |
| 68 exp = resolveProperties(sc, exp); | |
| 69 exp.checkSideEffect(0); | |
| 70 exp = exp.optimize(0); | |
| 71 if (exp.op == TOK.TOKdeclaration && !isDeclarationStatement()) | |
| 72 { | |
| 73 Statement s = new DeclarationStatement(loc, exp); | |
| 74 return s; | |
| 75 } | |
| 76 //exp = exp.optimize(isDeclarationStatement() ? WANT.WANTvalue : 0); | |
| 77 } | |
| 78 return this; | |
| 79 } | |
| 80 | |
| 72 | 81 override Expression interpret(InterState istate) |
| 0 | 82 { |
| 79 | 83 version (LOG) |
| 84 { | |
| 63 | 85 printf("ExpStatement.interpret(%s)\n", exp ? exp.toChars() : ""); |
| 86 } | |
| 155 | 87 mixin(START); |
| 63 | 88 if (exp) |
| 89 { | |
| 90 Expression e = exp.interpret(istate); | |
| 91 if (e is EXP_CANT_INTERPRET) | |
| 92 { | |
| 93 //printf("-ExpStatement.interpret(): %p\n", e); | |
| 94 return EXP_CANT_INTERPRET; | |
| 95 } | |
| 96 } | |
| 97 return null; | |
| 0 | 98 } |
| 99 | |
| 72 | 100 override BE blockExit() |
| 0 | 101 { |
| 102 BE result = BE.BEfallthru; | |
| 103 | |
| 104 if (exp) | |
| 105 { | |
| 106 if (exp.op == TOK.TOKhalt) | |
| 107 return BE.BEhalt; | |
| 108 if (exp.op == TOK.TOKassert) | |
| 109 { | |
| 110 AssertExp a = cast(AssertExp)exp; | |
| 111 | |
| 112 if (a.e1.isBool(false)) // if it's an assert(0) | |
| 113 return BE.BEhalt; | |
| 114 } | |
| 115 if (exp.canThrow()) | |
| 116 result |= BE.BEthrow; | |
| 117 } | |
| 118 return result; | |
| 119 } | |
| 79 | 120 |
| 121 override bool isEmpty() | |
| 122 { | |
| 123 return (exp is null); | |
| 124 } | |
| 0 | 125 |
| 72 | 126 override int inlineCost(InlineCostState* ics) |
| 0 | 127 { |
| 128 return exp ? exp.inlineCost(ics) : 0; | |
| 129 } | |
| 130 | |
| 72 | 131 override Expression doInline(InlineDoState ids) |
| 0 | 132 { |
| 79 | 133 version (LOG) |
| 134 { | |
| 135 if (exp) writef("ExpStatement.doInline() '%s'\n", exp.toChars()); | |
| 0 | 136 } |
| 137 return exp ? exp.doInline(ids) : null; | |
| 138 } | |
| 139 | |
| 72 | 140 override Statement inlineScan(InlineScanState* iss) |
| 0 | 141 { |
| 142 version (LOG) { | |
| 143 printf("ExpStatement.inlineScan(%s)\n", toChars()); | |
| 144 } | |
| 145 if (exp) | |
| 146 exp = exp.inlineScan(iss); | |
| 147 return this; | |
| 148 } | |
| 149 | |
| 72 | 150 override void toIR(IRState* irs) |
| 0 | 151 { |
| 152 Blockx* blx = irs.blx; | |
| 153 | |
| 154 //printf("ExpStatement.toIR(), exp = %s\n", exp ? exp.toChars() : ""); | |
| 155 incUsage(irs, loc); | |
| 156 if (exp) | |
| 157 block_appendexp(blx.curblock, exp.toElem(irs)); | |
| 158 } | |
|
16
5c9b78899f5d
Implemented methods for Tuples, fixed some linking issues.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
159 } |