Mercurial > projects > dang
annotate sema/DType.d @ 160:6cb2f4201e2a
Improved static arrays
Here is a list of some stuff that works
char[3] s = "hey"
char[3] s2 = s;
s2[1] = 98 // no support for chars, but 98 = 'b' :)
int[2] i;
i[0] = 2;
Still can't pass static arrays to functions
author | Anders Halager <halager@gmail.com> |
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date | Tue, 22 Jul 2008 13:29:20 +0200 |
parents | 6e6355fb5f0f |
children | dc9bf56b7ace |
rev | line source |
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26 | 1 module sema.DType; |
2 | |
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3 import lexer.Token, |
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4 ast.Exp; |
26 | 5 |
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6 public |
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7 import sema.Operation; |
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8 |
129 | 9 /// |
26 | 10 class DType |
11 { | |
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12 private char[] id; |
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13 private SourceLocation loc; |
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14 public DType actual; |
26 | 15 |
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16 this(Identifier id, DType actual = null) |
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17 { |
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18 this.id = id.name; |
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19 this.loc = id.startLoc(); |
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20 this.actual = actual is null? this : actual; |
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21 } |
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22 |
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23 this(char[] id, DType actual = null) |
26 | 24 { |
25 this.id = id; | |
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26 this.actual = actual is null? this : actual; |
26 | 27 } |
28 | |
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29 /// Is this type a DStruct |
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30 bool isStruct() { return false; } |
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31 /// Return a DStruct if this is one, otherwise return null |
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32 DStruct asStruct() { return null; } |
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33 |
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34 /// Is this type a DClass |
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35 bool isClass() { return false; } |
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36 /// Return a DClass if this is one, otherwise return null |
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37 DClass asClass() { return null; } |
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38 |
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39 /// Is this type a DInterface |
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40 bool isInterface() { return false; } |
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41 /// Return a DInterface if this is one, otherwise return null |
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42 DInterface asInterface() { return null; } |
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43 |
136 | 44 /// Is this type a DStaticArray |
45 bool isStaticArray() { return false; } | |
46 /// Return a DStaticArray if this is one, otherwise return null | |
47 DStaticArray asStaticArray() { return null; } | |
48 | |
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49 /// Is this type a DArray |
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50 bool isArray() { return false; } |
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51 /// Return a DArray if this is one, otherwise return null |
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52 DArray asArray() { return null; } |
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53 |
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54 /// Is this type a DPointer |
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55 bool isPointer() { return false; } |
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56 /// Return a DPointer if this is one, otherwise return null |
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57 DPointer asPointer() { return null; } |
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58 |
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59 /// Is this type a DFunction |
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60 bool isFunction() { return false; } |
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61 /// Return a DFunction if this is one, otherwise return null |
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62 DFunction asFunction() { return null; } |
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63 |
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64 /// Returns true for integers, reals and complex numbers |
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65 bool isArithmetic() { return false; } |
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66 |
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67 /// Is this type a DInteger |
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68 bool isInteger() { return false; } |
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69 /// Return a DInteger if this is one, otherwise return null |
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70 DInteger asInteger() { return null; } |
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71 |
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72 /// Is this type a DReal |
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73 bool isReal() { return false; } |
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74 /// Return a DReal if this is one, otherwise return null |
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75 DReal asReal() { return null; } |
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76 |
26 | 77 int opEquals(Object o) |
78 { | |
79 if (auto t = cast(DType)o) | |
80 return this.actual is t.actual; | |
81 return 0; | |
82 } | |
83 | |
84 int opCmp(Object o) | |
85 { | |
86 if (auto t = cast(DType)o) | |
87 return cast(void*)this.actual - cast(void*)t.actual; | |
88 return 0; | |
89 } | |
90 | |
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91 /** |
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92 Hashing is done by casting the reference to a void* and taking that |
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93 value, but this gives a bad distribution of hash-values. |
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94 |
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95 Multiple DType's allocated close to each other will only have a |
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96 difference in the lower bits of their hashes. |
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97 */ |
26 | 98 hash_t toHash() |
99 { | |
100 return cast(hash_t)(cast(void*)this); | |
101 } | |
102 | |
160 | 103 char[] toString() |
104 { | |
105 return id; | |
106 } | |
107 | |
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108 char[] name() { return id; } |
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109 SourceLocation getLoc() { return loc; } |
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110 int byteSize() { return 0; } |
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111 |
58 | 112 /** |
113 Can this type legally be converted to that type with no casts? | |
114 True for short -> int etc. | |
115 */ | |
116 bool hasImplicitConversionTo(DType that) { return false; } | |
117 | |
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118 /** |
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119 Get an Operation describing how to use the supplied operator on the two |
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120 types given. |
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121 */ |
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122 Operation getOperationWith(Operator op, DType other) |
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123 { |
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124 Operation res; |
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125 return res; |
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126 } |
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127 |
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128 /** |
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129 Get a type representing a pointer to this type (from int to int*) |
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130 */ |
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131 DPointer getPointerTo() |
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132 { |
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133 if(myPointer !is null) |
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134 return myPointer; |
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135 myPointer = new DPointer(this); |
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136 return myPointer; |
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137 } |
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138 private DPointer myPointer; |
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139 |
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140 /** |
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141 Mangle the DType following the specs at http://digitalmars.com/d/1.0/abi.html |
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142 **/ |
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143 char[] mangle() |
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144 { |
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145 /// expects to be void |
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146 return "v"; |
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147 } |
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148 |
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149 /** |
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150 Get a type representing a static array of this type with length 'size' |
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151 */ |
136 | 152 DStaticArray getAsStaticArray(int size) |
81 | 153 { |
136 | 154 if(size in myStaticArray) |
155 return myStaticArray[size]; | |
156 myStaticArray[size] = new DStaticArray(this, size); | |
157 return myStaticArray[size]; | |
81 | 158 } |
136 | 159 private DStaticArray[int] myStaticArray; |
160 | |
161 DArray getAsArray() | |
162 { | |
163 if(myArray !is null) | |
164 return myArray; | |
165 myArray = new DArray(this); | |
166 return myArray; | |
167 } | |
168 private DArray myArray; | |
81 | 169 |
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170 static DInteger |
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171 Bool, |
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172 Byte, UByte, Short, UShort, |
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173 Int, UInt, Long, ULong, |
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174 Char, WChar, DChar; |
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175 |
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176 static DReal Float, Double, Real; |
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177 |
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178 // Ignore - we dont support complex numbers yet |
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179 static DReal CFloat, CDouble, CReal; |
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180 |
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181 static DType Void; |
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182 |
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183 static this() |
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184 { |
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185 Void = new DType("void"); |
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129 | 187 Bool = new DInteger("bool", 1, true); |
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188 Byte = new DInteger("byte", 8, false); |
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189 UByte = new DInteger("ubyte", 8, true); |
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190 Short = new DInteger("short", 16, false); |
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191 UShort = new DInteger("ushort", 16, true); |
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192 Int = new DInteger("int", 32, false); |
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193 UInt = new DInteger("uint", 32, true); |
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194 Long = new DInteger("long", 64, false); |
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195 ULong = new DInteger("ulong", 64, true); |
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196 |
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197 Float = new DReal("float", 32); |
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198 Double = new DReal("double", 64); |
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199 Real = new DReal("real", 80); |
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200 |
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201 Char = new DInteger("char", 8, true); |
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202 WChar = new DInteger("wchar", 16, true); |
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203 DChar = new DInteger("dchar", 32, true); |
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204 } |
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205 } |
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206 |
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207 /** |
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208 Class to represent the built-in numerical types, from byte to long, reals and |
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209 complex numbers. |
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210 |
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211 Should not actually use this, but DInteger, DReal or DComplex. |
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212 */ |
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213 class DArithmetic : DType |
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214 { |
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215 private static char[][DArithmetic] mangle_types; |
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216 |
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217 static this() |
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218 { |
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219 mangle_types = |
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220 [ |
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221 cast(DArithmetic) |
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222 Bool : "b", |
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223 Byte : "g", |
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224 UByte : "h", |
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225 Short : "s", |
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226 UShort : "t", |
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227 Int : "i", |
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228 UInt : "k", |
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229 Long : "l", |
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230 ULong : "m", |
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231 |
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232 Float : "f", |
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233 Double : "d", |
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234 Real : "e", |
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235 |
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236 /* |
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237 CFloat : "q", |
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238 CDouble : "r", |
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239 CReal : "c", |
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240 */ |
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241 |
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242 Char : "a", |
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243 WChar : "u", |
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244 DChar : "w" |
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245 ]; |
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246 } |
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247 |
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248 this(char[] name, int bits, bool unsigned) |
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249 { |
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250 super(name, null); |
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251 this.bits = bits; |
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252 this.unsigned = unsigned; |
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253 } |
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254 |
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255 override int byteSize() { return bits / 8; } |
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256 |
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257 bool isArithmetic() { return true; } |
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258 |
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259 override Operation getOperationWith(Operator op, DType that) |
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260 { |
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261 Operation operation; |
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262 if (this is that) |
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263 operation = Operation.builtin(op, unsigned, isReal()); |
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264 return operation; |
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265 } |
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266 |
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267 override char[] mangle() |
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268 { |
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269 return mangle_types[this]; |
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270 } |
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271 |
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272 int bits; |
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273 bool unsigned; |
26 | 274 } |
275 | |
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276 class DInteger : DArithmetic |
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277 { |
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278 this(char[] name, int bits, bool unsigned) |
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279 { |
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280 super(name, bits, unsigned); |
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281 } |
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282 |
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283 override bool hasImplicitConversionTo(DType that) |
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284 { |
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285 if (that.isInteger() || that.isReal()) |
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286 return true; |
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287 return false; |
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288 } |
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289 |
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290 override bool isInteger() { return true; } |
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291 override DInteger asInteger() { return this; } |
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292 } |
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293 |
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294 class DReal : DArithmetic |
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295 { |
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296 this(char[] name, int bits) |
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297 { |
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298 super(name, bits, false); |
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299 } |
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300 |
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301 override bool hasImplicitConversionTo(DType that) |
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302 { |
120
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303 if (that.isInteger() || that.isReal()) |
119
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304 return true; |
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305 return false; |
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306 } |
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307 |
116
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308 override bool isReal() { return true; } |
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309 override DReal asReal() { return this; } |
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310 } |
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311 |
26 | 312 class DStruct : DType |
313 { | |
27
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314 this(Identifier id, DType actual = null) |
26 | 315 { |
27
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316 super(id, actual); |
26 | 317 } |
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318 |
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319 int byteSize() { return bytes_total; } |
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320 |
64
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321 override bool isStruct() { return true; } |
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322 override DStruct asStruct() { return this; } |
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323 |
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324 void addMember(DType type, char[] name) |
28
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325 { |
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326 auto s = DStructMember(type, members.length); |
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327 members[name] = s; |
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328 |
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329 bytes_total += type.byteSize(); |
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330 } |
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331 |
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332 int indexOf(char[] name) |
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333 { |
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334 if(name in members) |
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335 return members[name].index; |
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336 |
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337 return -1; |
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338 } |
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339 |
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340 DType typeOf(char[] name) |
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341 { |
58 | 342 if (auto res = name in members) |
343 return res.type; | |
344 return null; | |
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345 } |
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346 |
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347 DStructMember[char[]] members; |
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348 private int bytes_total; |
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349 |
96
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Now D-Mangling the function types. Still need to mangle "scopes" - by that i mean structs, classes and modules.
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350 override char[] mangle() |
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351 { |
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352 return "S"~Integer.toString(name.length)~name; |
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353 } |
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354 |
55
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355 struct DStructMember |
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356 { |
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357 DType type; |
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358 int index; |
132
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Better scope-building. Still an error with structs and forward ref though.
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359 |
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360 char[] toString() |
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Better scope-building. Still an error with structs and forward ref though.
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361 { |
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362 return type.toString(); |
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363 } |
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364 } |
26 | 365 } |
366 | |
144
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367 class DClass : DType |
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368 { |
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369 this(Identifier id, DType actual = null) |
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370 { |
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371 super(id, actual); |
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372 } |
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373 |
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374 int byteSize() { return bytes_total; } |
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375 |
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376 override bool isClass() { return true; } |
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377 override DClass asClass() { return this; } |
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378 |
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379 void addMember(DType type, char[] name) |
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380 { |
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381 auto s = DClassMember(type, members.length); |
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382 members[name] = s; |
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383 |
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384 bytes_total += type.byteSize(); |
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385 } |
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386 |
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387 int indexOf(char[] name) |
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388 { |
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389 if(name in members) |
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390 return members[name].index; |
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|
391 |
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392 return -1; |
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|
393 } |
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|
394 |
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395 DType typeOf(char[] name) |
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396 { |
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397 if (auto res = name in members) |
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398 return res.type; |
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399 return null; |
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|
400 } |
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|
401 |
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changeset
|
402 DClassMember[char[]] members; |
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403 private int bytes_total; |
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|
404 |
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405 override char[] mangle() |
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|
406 { |
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407 return "S"~Integer.toString(name.length)~name; |
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408 } |
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|
409 |
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- Parsing nested attributes.
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changeset
|
410 struct DClassMember |
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411 { |
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412 DType type; |
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413 int index; |
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changeset
|
414 |
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- Parsing nested attributes.
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changeset
|
415 char[] toString() |
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416 { |
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417 return type.toString(); |
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418 } |
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419 } |
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420 } |
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changeset
|
421 |
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- Parsing nested attributes.
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422 class DInterface : DType |
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423 { |
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424 this(Identifier id, DType actual = null) |
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425 { |
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426 super(id, actual); |
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427 } |
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changeset
|
428 |
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changeset
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429 int byteSize() { return bytes_total; } |
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430 |
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431 override bool isInterface() { return true; } |
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432 override DInterface asInterface() { return this; } |
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433 |
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434 void addMember(DType type, char[] name) |
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435 { |
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436 auto s = DInterfaceMember(type, members.length); |
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437 members[name] = s; |
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438 |
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439 bytes_total += type.byteSize(); |
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440 } |
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441 |
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442 int indexOf(char[] name) |
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443 { |
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444 if(name in members) |
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445 return members[name].index; |
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446 |
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447 return -1; |
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448 } |
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449 |
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450 DType typeOf(char[] name) |
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451 { |
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452 if (auto res = name in members) |
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453 return res.type; |
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454 return null; |
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455 } |
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456 |
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457 DInterfaceMember[char[]] members; |
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458 private int bytes_total; |
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459 |
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460 override char[] mangle() |
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461 { |
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462 return "S"~Integer.toString(name.length)~name; |
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463 } |
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464 |
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465 struct DInterfaceMember |
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466 { |
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467 DType type; |
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468 int index; |
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469 |
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470 char[] toString() |
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471 { |
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472 return type.toString(); |
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473 } |
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474 } |
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475 } |
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476 |
136 | 477 class DStaticArray : DType |
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478 { |
81 | 479 this(DType arrayOf, int size, DType actual = null) |
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480 { |
160 | 481 super(arrayOf.id ~ "[" ~ Integer.toString(size) ~ "]", actual); |
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482 this.arrayOf = arrayOf; |
81 | 483 this.size = size; |
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484 } |
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485 |
136 | 486 override bool isStaticArray() { return true; } |
487 override DStaticArray asStaticArray() { return this; } | |
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488 |
81 | 489 int byteSize() { return arrayOf.byteSize * size; } |
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490 |
96
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491 override char[] mangle() |
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492 { |
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493 return "G"~Integer.toString(size)~arrayOf.mangle; |
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494 } |
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495 |
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496 DType arrayOf; |
81 | 497 const int size; |
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498 } |
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499 |
136 | 500 class DArray : DType |
501 { | |
502 this(DType arrayOf, DType actual = null) | |
503 { | |
504 super(id, actual); | |
505 this.arrayOf = arrayOf; | |
506 } | |
507 | |
508 override bool isArray() { return true; } | |
509 override DArray asArray() { return this; } | |
510 | |
511 int byteSize() { return 8; } // FIXME: Size is a pointer + on size. (platform depend) | |
512 | |
513 override char[] mangle() | |
514 { | |
515 return "G"~arrayOf.mangle; // FIXME: Need correct mangling | |
516 } | |
517 | |
518 DType arrayOf; | |
519 } | |
520 | |
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521 class DPointer : DType |
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522 { |
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523 this(DType pointerOf, DType actual = null) |
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524 { |
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525 super(id, actual); |
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526 this.pointerOf = pointerOf; |
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527 } |
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528 |
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529 override bool isPointer() { return true; } |
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530 override DPointer asPointer() { return this; } |
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531 |
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532 int byteSize() { return DType.Int.byteSize; } |
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533 |
96
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534 override char[] mangle() |
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535 { |
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536 return "P"~pointerOf.mangle; |
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537 } |
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538 |
77
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539 DType pointerOf; |
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540 } |
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541 |
26 | 542 class DFunction : DType |
543 { | |
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544 this(Identifier id, DType actual = null) |
26 | 545 { |
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546 super(id, actual); |
26 | 547 } |
49
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Seperated the AST from LLVM
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548 |
64
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549 override bool isFunction() { return true; } |
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550 override DFunction asFunction() { return this; } |
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551 |
136 | 552 override bool hasImplicitConversionTo(DType that) |
553 { | |
554 return returnType.hasImplicitConversionTo(that); | |
555 } | |
556 | |
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557 override char[] mangle() |
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558 { |
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559 char[] res; |
129 | 560 |
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561 res ~= "F"; |
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562 |
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563 foreach(param ; params) |
129 | 564 res ~= param.mangle; |
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565 |
129 | 566 res ~= "Z"; |
567 res ~= returnType.mangle; | |
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568 |
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569 return res; |
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570 } |
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571 |
26 | 572 DType[] params; |
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573 DType returnType; |
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574 bool firstParamIsReturnValue = false; |
26 | 575 } |
576 |