Mercurial > projects > dstep
annotate dstep/objc/bridge/Bridge.d @ 25:b9de51448c6b
Added an id constructor. Changed the string mixin to a template mixin. Added support for building as a dynamic library
| author | Jacob Carlborg <doob@me.com> |
|---|---|
| date | Tue, 06 Apr 2010 11:37:27 +0200 |
| parents | 6255d355d752 |
| children | 57371c29ef73 |
| rev | line source |
|---|---|
| 1 | 1 /** |
| 2 * Copyright: Copyright (c) 2009 Jacob Carlborg. | |
| 3 * Authors: Jacob Carlborg | |
| 4 * Version: Initial created: Feb 4, 2009 | |
| 5 * License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost Software License 1.0) | |
| 6 */ | |
| 7 module dstep.objc.bridge.Bridge; | |
| 8 | |
| 9 version (Tango) | |
| 10 { | |
| 11 import tango.core.Memory; | |
| 12 import tango.core.Traits : ParameterTupleOf, ReturnTypeOf; | |
| 13 } | |
| 14 | |
| 15 else | |
| 16 { | |
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17 import GC = std.gc : addRoot; |
| 1 | 18 import std.traits : ParameterTypeTuple, ReturnType; |
| 19 | |
| 20 alias ReturnType ReturnTypeOf; | |
| 21 alias ParameterTypeTuple ParameterTupleOf; | |
| 22 } | |
| 23 | |
| 24 import dstep.internal.String; | |
| 25 import dstep.internal.Version; | |
| 26 import dstep.objc.bridge.Capsule; | |
| 27 import dstep.objc.bridge.ClassInitializer; | |
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28 import dstep.objc.bridge.Type; |
| 1 | 29 import dstep.objc.bridge.TypeEncoding; |
| 30 import dstep.objc.bridge.Wrapper; | |
| 31 import dstep.objc.message; | |
| 32 import dstep.objc.objc; | |
| 33 import dstep.objc.runtime; | |
| 34 | |
| 35 /** | |
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36 * Builds a string representing a selector out of the given method |
| 1 | 37 * |
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38 * It will build the string using the parameter names as a part of the selector, |
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39 * like this: |
| 1 | 40 * |
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41 * Examples: |
| 1 | 42 * --- |
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43 * foo (int x, int y); |
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44 * bar (); |
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45 * fooBar (int x); |
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46 * |
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47 * static assert(selectorAsString!(foo) == "foo:y:"); |
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48 * static assert(selectorAsString!(bar) == "bar"); |
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49 * static assert(selectorAsString!(fooBar) == "fooBar:"); |
| 1 | 50 * --- |
| 51 * | |
| 52 * Params: | |
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53 * method = the method alias to build the selector of |
| 1 | 54 * |
| 55 * Returns: a string representing the selector | |
| 56 */ | |
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57 template selectorAsString (alias method) |
| 1 | 58 { |
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59 const selectorAsString = buildSelector!(method); |
| 1 | 60 } |
| 61 | |
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62 /** |
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63 * Registers a method with the Objective-C runtime system, |
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64 * maps the method name to a selector, and returns the selector value. |
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65 * |
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66 * You must register a method name with the Objective-C runtime system to obtain |
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67 * the method’s selector before you can add the method to a class definition. |
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68 * If the method name has already been registered, this function simply returns |
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69 * the selector. |
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70 * |
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71 * Examples: |
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72 * --- |
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73 * SEL sel = selector!("foo:"); |
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74 * --- |
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75 * |
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76 * Params: |
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77 * str = the string to register |
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78 * |
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79 * Returns: a pointer of type SEL specifying the selector for the named method. |
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80 */ |
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81 SEL selector (string str) () |
| 1 | 82 { |
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83 return sel.registerName!(str); |
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84 } |
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85 |
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86 /** |
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87 * Registers a method with the Objective-C runtime system, |
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88 * maps the method name to a selector, and returns the selector value. |
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89 * |
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90 * Using selectorAsString to get the string representation of the selector. |
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91 * |
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92 * You must register a method name with the Objective-C runtime system to obtain |
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93 * the method’s selector before you can add the method to a class definition. |
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94 * If the method name has already been registered, this function simply returns |
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95 * the selector. |
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96 * |
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97 * Examples: |
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98 * --- |
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99 * foo (int x); |
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100 * SEL sel = selector!(foo); |
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101 * --- |
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102 * |
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103 * Params: |
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104 * method = the method to register |
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105 * |
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106 * Returns: a pointer of type SEL specifying the selector for the named method. |
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107 */ |
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108 SEL selector (alias method) () |
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109 { |
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110 return sel.registerName!(selectorAsString!(method)); |
| 1 | 111 } |
| 112 | |
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113 /** |
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114 * All Objective-C wrappers should mix in this template. |
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115 * |
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116 * Mixes in: $(D_PSYMBOL dstep.objc.bridge.ClassInitializer.ObjcSubclassInitializer) |
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117 * |
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118 * |
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119 * Examples: |
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120 * --- |
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121 * class AppController : NSObject |
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122 * { |
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123 * mixin ObjcWrap; |
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124 * } |
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125 * --- |
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126 */ |
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127 template ObjcWrap () |
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128 { |
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129 /// This variable represents the Objective-C class. |
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130 static private dstep.objc.objc.Class __objcClass; |
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131 |
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132 /// This variable represents the Objective-C super class. |
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133 static private dstep.objc.objc.Class __objcSuperClass; |
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134 |
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135 /** |
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136 * Allocates a new instance of the receiver. |
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137 * |
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138 * Returns: a new instance of the receiver |
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139 */ |
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140 static typeof(this) alloc () |
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141 { |
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142 return invokeObjcSelfClass!(typeof(this), "alloc"); |
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143 } |
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144 |
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145 mixin dstep.objc.bridge.ClassInitializer.ObjcSubclassInitializer!(this.stringof, super.stringof); |
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146 } |
| 1 | 147 |
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148 /** |
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149 * All Objective-C wrappers should mix in this string. |
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150 * |
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151 * Mixes in: $(D_PSYMBOL dstep.objc.bridge.ClassInitializer.ObjcSubclassInitializer) |
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152 * |
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153 * Examples: |
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154 * --- |
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155 * class NSString : NSObject |
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156 * { |
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157 * mixin ObjcClusterWrap; |
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158 * } |
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159 * --- |
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160 */ |
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161 template ObjcClusterWrap () |
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162 { |
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163 /// This variable represents the Objective-C class. |
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164 static private dstep.objc.objc.Class __objcClass; |
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165 |
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166 /// This variable represents the Objective-C super class. |
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167 static private dstep.objc.objc.Class __objcSuperClass; |
| 1 | 168 |
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169 /** |
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170 * Allocates a new instance of the receiver. |
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171 * |
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172 * Returns: a new instance of the receiver |
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173 */ |
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174 static typeof(this) alloc () |
| 1 | 175 { |
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176 return invokeObjcSuperClass!(typeof(this), "alloc"); |
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177 } |
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178 |
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179 mixin dstep.objc.bridge.ClassInitializer.ObjcSubclassInitializer!(this.stringof, super.stringof); |
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180 } |
| 1 | 181 |
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182 /** |
| 19 | 183 * Makes the given field available as an IBOutlet. |
| 184 * | |
| 185 * Mixes in a method that is called by the Objective-C side to set the value of the | |
| 186 * given field. | |
| 187 * | |
| 188 * Mixes in: $(D_PSYMBOL ObjcBindMethod) | |
| 189 * | |
| 190 * Examples: | |
| 191 * --- | |
| 192 * class AppController : NSObject | |
| 193 * { | |
| 194 * NSButton button; | |
| 195 * mixin IBOutlet!(button); | |
| 196 * } | |
| 197 * --- | |
| 198 * | |
| 199 * Params: | |
| 200 * field = the field make available as an IBOutlet | |
| 201 */ | |
| 202 template IBOutlet (alias field) | |
| 203 { | |
| 204 static assert (is(typeof(field) : Object), dstep.objc.bridge.Bridge.buildIBOutletErrorMessage!(field)); | |
| 205 | |
| 20 | 206 /// Sets the field |
| 19 | 207 void __setMethod (typeof(field) value) |
| 208 { | |
| 209 field = value; | |
| 210 } | |
| 211 | |
| 212 mixin dstep.objc.bridge.Bridge.ObjcBindMethod!(__setMethod, "set" ~ dstep.objc.bridge.Bridge.toUpper(field.stringof[0]) ~ field.stringof[1 .. $] ~ ":"); | |
| 213 } | |
| 214 | |
| 215 char toUpper (char c) | |
| 216 { | |
| 217 if (c >= 'a' && c <= 'z') | |
| 218 return c - 32; | |
| 219 | |
| 220 return c; | |
| 221 } | |
| 222 | |
| 223 template buildIBOutletErrorMessage (alias field) | |
| 224 { | |
| 225 const buildIBOutletErrorMessage = `The type "` ~ typeof(field).stringof ~ `" of the given field "` ~ field.stringof ~ `" in the class "` ~ typeof(this).stringof ~ `" is not a valid IBOutlet type. IBOutlets can only be of the type Object (or any of its subclasses)`; | |
| 226 } | |
| 227 | |
| 228 /** | |
| 18 | 229 * Binds a selector to an instance method. |
| 230 * | |
| 231 * This will create a receiver function which will forward the call to $(D_PARAM method), | |
| 232 * decapsulating arguments and encapsulating the return value as appropriate. | |
| 233 * This $(D_KEYWORD template) will use the buildSelector $(D_KEYWORD template) to build | |
| 234 * the selector. It will automatically infer the return type and the argument types | |
| 235 * of the method. An action method can only have one parameter and of the type Object | |
| 236 * (or any of its subclasses). | |
| 237 * | |
| 238 * Mixes in: ObjcBindMethod | |
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239 * |
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240 * Examples: |
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241 * --- |
| 18 | 242 * class AppController : NSObject |
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243 * { |
| 18 | 244 * void foo (Object sender) {} |
| 245 * mixin IBAction!(foo); | |
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246 * } |
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247 * --- |
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248 * |
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249 * Params: |
| 18 | 250 * method = the method to bind |
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251 */ |
| 18 | 252 template IBAction (alias method) |
| 1 | 253 { |
| 19 | 254 static assert (dstep.objc.bridge.Bridge.ParameterTupleOf!(method).length == 1, "An action method is only allowed to have one parameter"); |
| 255 static assert (is(dstep.objc.bridge.Bridge.ParameterTupleOf!(method)[0] : Object), "An action method can only have a parameter of the type Object (or any of its subclasses)"); | |
| 18 | 256 |
| 257 mixin ObjcBindMethod!(method, dstep.objc.bridge.TypeEncoding.buildSelector!(method)); | |
| 1 | 258 } |
| 259 | |
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260 /** |
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261 * Binds a selector to an instance method. |
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262 * |
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263 * This will create a receiver function which will forward the call to $(D_PARAM method), |
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264 * decapsulating arguments and encapsulating the return value as appropriate. |
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265 * This $(D_KEYWORD template) will use the buildSelector $(D_KEYWORD template) to build |
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266 * the selector. It will automatically infer the return type and the argument types |
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267 * of the method. |
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268 * |
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269 * Mixes in: ObjcBindMethod |
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270 * |
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271 * Examples: |
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272 * --- |
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273 * class AppController : NSObject |
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274 * { |
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275 * void foo () {} |
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276 * mixin ObjcBindMethod!(foo); |
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277 * } |
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278 * --- |
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279 * |
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280 * Params: |
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281 * method = the method to bind |
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282 */ |
| 1 | 283 template ObjcBindMethod (alias method) |
| 284 { | |
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285 mixin ObjcBindMethod!(method, dstep.objc.bridge.TypeEncoding.buildSelector!(method)); |
| 1 | 286 } |
| 287 | |
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288 /** |
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289 * Binds a selector to an instance method. |
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290 * |
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291 * This will create a receiver function which will forward the call to $(D_PARAM method), |
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292 * decapsulating arguments and encapsulating the return value as appropriate. |
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293 * It will automatically infer the return type and the argument types |
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294 * of the method. |
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295 * |
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296 * Mixes in: ObjcBindMethod |
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297 * |
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298 * Examples: |
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299 * --- |
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300 * class AppController : NSObject |
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301 * { |
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302 * void foo () {} |
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303 * mixin ObjcBindMethod!(foo, "foo"); |
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304 * } |
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305 * --- |
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306 * |
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307 * Params: |
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308 * method = the method to bind |
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309 * selector = the selector to bind the method to |
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310 */ |
| 1 | 311 template ObjcBindMethod (alias method, string selector) |
| 312 { | |
| 19 | 313 mixin ObjcBindMethod!(method, dstep.objc.bridge.Bridge.ReturnTypeOf!(method), selector, dstep.objc.bridge.Bridge.ParameterTupleOf!(method)); |
| 1 | 314 } |
| 315 | |
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316 /** |
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317 * Binds a selector to an instance method. |
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318 * |
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319 * This will create a receiver method which will forward the call to $(D_PARAM method), |
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320 * decapsulating arguments and encapsulating the return value as appropriate. |
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321 * |
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322 * Examples: |
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323 * --- |
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324 * class AppController : NSObject |
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325 * { |
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326 * int foo (int x) |
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327 * { |
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328 * return x; |
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329 * } |
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330 * |
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331 * mixin ObjcBindMethod!(foo, int, "foo:", int); |
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332 * } |
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333 * --- |
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334 * |
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335 * Params: |
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336 * method = the method to bind |
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337 * R = the return type of the method |
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338 * selector = the selector to bind the method to |
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339 * ARGS = the argument types of the method |
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340 */ |
| 1 | 341 template ObjcBindMethod (alias method, R, string selector, ARGS...) |
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342 { |
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343 private |
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344 { |
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345 /** |
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346 * Resolves the virtual call |
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347 * |
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348 * Returns: a $(D_KEYWORD delegate) to the binded method |
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349 */ |
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350 R delegate (ARGS) __resolveVirtualCall () |
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351 { |
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352 return &method; |
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353 } |
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354 |
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355 /// A type tuple with all the encapsulated types |
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356 alias dstep.objc.bridge.Type.ObjcTypes!(ARGS) __ObjcArgs; |
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357 |
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358 /** |
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359 * The receiver method, this will be the method called from the Objective-C side |
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360 * |
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361 * Params: |
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362 * self = the Objective-C instance to call the method on |
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363 * cmd = the Objective-C selector representing the method to call |
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364 * objcArgs = the encapsulated arguments to the binded method |
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365 * |
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366 * Returns: whatever the binded method returns, encapsulated |
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367 */ |
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368 extern (C) static dstep.objc.bridge.Type.ObjcType!(R) __forwardVirtualCall (dstep.objc.objc.id self, dstep.objc.objc.SEL cmd, __ObjcArgs objcArgs) |
| 1 | 369 in |
| 370 { | |
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371 assert(dstep.objc.bridge.Capsule.isCapsule(self)); |
| 1 | 372 } |
| 373 body | |
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374 { |
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375 R delegate (ARGS) delegate () dg; |
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376 dg.ptr = cast(void*) dstep.objc.bridge.Capsule.decapsule!(typeof(this))(self); |
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377 dg.funcptr = &__resolveVirtualCall; |
| 1 | 378 ARGS args; |
| 379 | |
| 380 foreach (i, a ; objcArgs) | |
| 381 { | |
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382 alias typeof(args[i]) ArgType; |
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383 args[i] = dstep.objc.bridge.Capsule.decapsule!(ArgType)(a); |
| 1 | 384 } |
| 385 | |
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386 static if (is(R == void)) |
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387 dg()(args); |
| 1 | 388 |
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389 else |
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390 return dstep.objc.bridge.Capsule.encapsule!(R)(dg()(args)); |
| 1 | 391 } |
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392 |
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393 /// The Objective-C method declaration for the binded method |
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394 ObjcMethodDeclaration!(__forwardVirtualCall, R, selector, ARGS) __objcMethodDeclaration; |
| 1 | 395 } |
| 396 } | |
| 397 | |
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398 /** |
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399 * Binds a selector to a class (static) method. |
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400 * |
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401 * This will create a receiver function which will forward the call to $(D_PARAM method), |
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402 * decapsulating arguments and encapsulating the return value as appropriate. |
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403 * This $(D_KEYWORD template) will use the buildSelector $(D_KEYWORD template) |
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404 * to build the selector. It will automatically infer the return type and the |
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405 * argument types of the method. |
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406 * |
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407 * Mixes in: $(D_PSYMBOL ObjcBindClassMethod) |
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408 * |
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409 * Examples: |
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410 * --- |
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411 * class AppController : NSObject |
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412 * { |
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413 * static void foo () {} |
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414 * mixin ObjcBindClassMethod!(foo); |
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415 * } |
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416 * --- |
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417 * |
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418 * Params: |
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419 * method = the method to bind |
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420 */ |
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421 template ObjcBindClassMethod (alias method) |
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422 { |
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423 mixin ObjcBindClassMethod!(method, dstep.objc.bridge.TypeEncoding.buildSelector!(method)); |
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424 } |
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425 |
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426 /** |
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427 * Binds a selector to a class (static) method. |
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428 * |
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429 * This will create a receiver function which will forward the call to $(D_PARAM method), |
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430 * decapsulating arguments and encapsulating the return value as appropriate. |
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431 * It will automatically infer the return type and the argument types |
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432 * of the method. |
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433 * |
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434 * Mixes in: $(D_PSYMBOL ObjcBindClassMethod) |
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435 * |
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436 * Examples: |
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437 * --- |
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438 * class AppController : NSObject |
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439 * { |
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440 * static void foo () {} |
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441 * mixin ObjcBindClassMethod!(foo, "foo"); |
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442 * } |
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443 * --- |
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444 * |
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445 * Params: |
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446 * method = the method to bind |
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447 * selector = the selector to bind the method to |
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448 */ |
| 1 | 449 template ObjcBindClassMethod (alias method, string selector) |
| 450 { | |
| 19 | 451 mixin ObjcBindClassMethod!(method, dstep.objc.bridge.Bridge.ReturnTypeOf!(method), selector, dstep.objc.bridge.Bridge.ParameterTupleOf!(method)); |
| 1 | 452 } |
| 453 | |
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454 /** |
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455 * Binds a selector to a class (static) method. |
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456 * |
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457 * This will create a receiver method which will forward the call to $(D_PARAM method), |
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458 * decapsulating arguments and encapsulating the return value as appropriate. |
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459 * |
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460 * Examples: |
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461 * --- |
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462 * class AppController : NSObject |
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463 * { |
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464 * static int foo (int x) |
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465 * { |
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466 * return x; |
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467 * } |
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468 * |
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469 * mixin ObjcBindClassMethod!(foo, int, "foo:", int); |
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470 * } |
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471 * --- |
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472 * |
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473 * Params: |
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474 * method = the method to bind |
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475 * R = the return type of the method |
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476 * selector = the selector to bind the method to |
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477 * ARGS = the argument types of the method |
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478 */ |
| 1 | 479 template ObjcBindClassMethod (alias method, R, string selector, ARGS...) |
|
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480 { |
|
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481 private |
| 1 | 482 { |
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483 /// A type tuple with all the encapsulated types |
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484 alias dstep.objc.bridge.Type.ObjcTypes!(ARGS) __ObjcArgs; |
|
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485 |
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486 /** |
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487 * The receiver method, this will be the method called from the Objective-C side |
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488 * |
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489 * Params: |
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490 * objcArgs = the encapsulated arguments to the binded method |
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491 * |
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492 * Returns: whatever the binded method returns, encapsulated |
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493 */ |
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494 extern (C) static dstep.objc.bridge.Type.ObjcType!(R) __forwardStaticCall (dstep.objc.objc.Class self, dstep.objc.objc.SEL cmd, __ObjcArgs objcArgs) |
| 1 | 495 in |
| 496 { | |
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497 assert(dstep.objc.bridge.Capsule.isCapsule(self)); |
| 1 | 498 } |
| 499 body | |
| 500 { | |
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501 R function (ARGS) funcPtr = &method; |
| 1 | 502 ARGS args; |
| 503 | |
| 504 foreach (i, a ; objcArgs) | |
| 505 { | |
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506 alias typeof(args[i]) ArgType; |
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507 args[i] = dstep.objc.bridge.Capsule.decapsule!(ArgType)(a); |
| 1 | 508 } |
| 509 | |
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510 static if (is(R == void)) |
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511 funcPtr()(args); |
| 1 | 512 |
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513 else |
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514 return dstep.objc.bridge.Capsule.encapsule!(R)(funcPtr()(args)); |
| 1 | 515 } |
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516 |
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517 /// The Objective-C method declaration for the binded method |
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518 ObjcMethodDeclaration!(__forwardStaticCall, R, selector, ARGS) __objcClassMethodDeclaration; |
| 1 | 519 } |
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520 } |
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521 |
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522 /** |
| 18 | 523 * This $(D_KEYWORD struct) represents an Objective-C method declaration. |
| 524 * | |
| 525 * Examples: | |
| 526 * --- | |
| 527 * class C : NSObject | |
| 528 * { | |
| 529 * void foo (int x) {} | |
| 530 * ObjcMethodDeclaration!(foo, void, "foo", int) objcMethodDecl; | |
| 531 * } | |
| 532 * --- | |
| 533 * | |
| 534 * Params: | |
| 535 * imp = the D method | |
| 536 * R = the return type of the method | |
| 537 * name = the name of the method | |
| 538 * ARGS = the argument types of the method | |
| 539 */ | |
| 540 struct ObjcMethodDeclaration (alias imp, R, string name, ARGS...) | |
| 541 { | |
| 542 dstep.objc.objc.IMP methodImp = cast(dstep.objc.objc.IMP) &imp; | |
| 543 alias R returnType; | |
| 544 const string methodName = name; | |
| 545 alias ARGS argsType; | |
| 546 } | |
| 547 | |
| 548 /** | |
|
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549 * Binds a D free function to an Objective-C free function. |
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550 * |
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551 * This will create a receiver function which will forward the call to the |
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552 * binded function, decapsulating arguments and encapsulating the return value |
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553 * as appropriate. |
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554 * |
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555 * Mixes in: $(D_PSYMBOL ObjcBindFunction) |
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556 * |
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557 * Examples: |
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558 * --- |
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559 * void foo (); |
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560 * mixin ObjcBindFunction!(foo); |
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561 * --- |
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562 */ |
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563 template ObjcBindFunction (alias func) |
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564 { |
| 19 | 565 mixin ObjcBindFunction!(func, dstep.objc.bridge.Bridge.ReturnTypeOf!(func), dstep.objc.bridge.Bridge.ParameterTupleOf!(func)); |
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566 } |
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567 |
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568 /** |
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569 * Binds a D free function to an Objective-C free function. |
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570 * |
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571 * This will create a receiver function which will forward the call to the |
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572 * binded function, decapsulating arguments and encapsulating the return value |
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573 * as appropriate. |
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574 * |
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575 * Examples: |
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576 * --- |
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577 * char foo (int); |
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578 * mixin ObjcBindFunction!(foo, char, int); |
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579 * --- |
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580 * |
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581 * Params: |
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582 * func = the function to bind |
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583 * R = the return type of the function |
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584 * ARGS = the argument types of the function |
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585 */ |
|
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586 template ObjcBindFunction (alias func, R, ARGS...) |
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587 { |
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588 private |
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589 { |
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590 /// A type tuple with all the encapsulated types |
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591 alias dstep.objc.bridge.Type.ObjcTypes!(ARGS) __ObjcArgs; |
|
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592 |
|
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593 /** |
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594 * The receiver function, this will be the function called from the Objective-C side |
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595 * |
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596 * Params: |
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597 * objcArgs = the encapsulated arguments to the binded function |
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598 * |
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599 * Returns: whatever the binded function returns, encapsulated |
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600 */ |
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601 extern (C) dstep.internal.Types.ObjcType!(R) __forwardFunctionCall (__ObjcArgs objcArgs) |
|
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602 { |
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603 R function (ARGS) funcPtr = &func; |
| 1 | 604 ARGS args; |
| 605 | |
| 606 foreach (i, a ; objcArgs) | |
| 607 { | |
|
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608 alias typeof(args[i]) ArgType; |
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609 args[i] = dstep.objc.bridge.Capsule.decapsule!(ArgType)(a); |
| 1 | 610 } |
| 611 | |
|
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612 static if (is(R == void)) |
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613 funcPtr()(args); |
|
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614 |
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615 else |
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616 return dstep.objc.bridge.Capsule.encapsule!(R)(funcPtr()(args)); |
| 1 | 617 } |
| 618 } | |
| 619 } | |
| 620 | |
|
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621 /// This $(D_KEYWORD class) acts like a name space for various methods and functions |
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622 class Bridge |
| 1 | 623 { |
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624 private static Bridge bridgeInstance; |
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625 |
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626 /// The name of the method declaration variable mixed in in a $(D_KEYWORD class) |
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627 const objcMethodDeclarationVar = "__objcMethodDeclaration"; |
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628 |
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629 /// The name of the class method declaration variable mixed in in a $(D_KEYWORD class) |
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630 const objcClassMethodDeclarationVar = "__objcClassMethodDeclaration"; |
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631 |
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632 /// The name of the variable used on the Objective-C side to store the D object |
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633 const dObjectVar = "dObject"; |
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634 |
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635 /// This alias is used as an internal representation of a D object |
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636 //alias Object DObjectType; |
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637 alias void* DObjectType; |
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638 |
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639 /** |
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640 * Gets the only instance of this class |
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641 * |
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642 * Returns: the instance |
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643 */ |
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644 static Bridge instance () |
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645 { |
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646 if (bridgeInstance) |
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647 return bridgeInstance; |
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648 |
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649 return bridgeInstance = new Bridge; |
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650 } |
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651 |
| 1 | 652 static: |
| 653 | |
|
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654 /** |
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655 * Gets the value of an Objective-C instance variable |
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656 * |
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657 * Examples: |
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658 * --- |
|
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659 * id self; |
|
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660 * int x = getObjcIvar!(int, "x")(self); |
|
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661 * --- |
|
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662 * |
|
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663 * Params: |
|
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Jacob Carlborg <doob@me.com>
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664 * T = the type of the instance variable |
|
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Huge update, the bridge actually works now
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665 * name = the name of the instance variable |
|
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666 * self = the Objective-C instance |
|
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667 * |
|
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668 * Returns: the value of the Objective-C variable |
|
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Huge update, the bridge actually works now
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669 */ |
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670 T getObjcIvar (T, string name) (id self) |
| 1 | 671 { |
|
16
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672 T value; |
| 1 | 673 |
|
16
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674 self.getInstanceVariable!(T, name)(value); |
|
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675 |
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676 return value; |
| 1 | 677 } |
| 678 | |
|
16
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679 /** |
|
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680 * Sets the value of an Objective-C instance variable |
|
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681 * |
|
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682 * Examples: |
|
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683 * --- |
|
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684 * id self; |
|
19885b43130e
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Jacob Carlborg <doob@me.com>
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685 * Bridge.setObjcIvar!(int, "x")(self, 3); |
|
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Huge update, the bridge actually works now
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686 * --- |
|
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687 * |
|
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688 * Params: |
|
19885b43130e
Huge update, the bridge actually works now
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689 * T = the type of the instance variable |
|
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690 * name = the name of the instance |
|
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691 * objcObject = the Objective-C instance |
|
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Huge update, the bridge actually works now
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692 * value = the value to set |
|
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Huge update, the bridge actually works now
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693 */ |
|
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Huge update, the bridge actually works now
Jacob Carlborg <doob@me.com>
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694 void setObjcIvar (T, string name) (id self, T value) |
| 1 | 695 { |
|
16
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696 GC.addRoot(value); |
|
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697 self.setInstanceVariable!(T, dObjectVar)(value); |
| 1 | 698 } |
| 699 | |
|
16
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700 /** |
|
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701 * Gets the D object stored in the given Objective-C instance |
|
19885b43130e
Huge update, the bridge actually works now
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702 * |
|
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703 * Examples: |
|
19885b43130e
Huge update, the bridge actually works now
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704 * --- |
|
19885b43130e
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705 * NSObject object = new NSObject; |
|
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706 * id self = object.objcObject; |
|
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707 * assert(object == Bridge.getDObject(self)); |
|
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Huge update, the bridge actually works now
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708 * --- |
|
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Huge update, the bridge actually works now
Jacob Carlborg <doob@me.com>
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709 * |
|
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Huge update, the bridge actually works now
Jacob Carlborg <doob@me.com>
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710 * Params: |
|
19885b43130e
Huge update, the bridge actually works now
Jacob Carlborg <doob@me.com>
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711 * self = the Objective-C instance |
|
19885b43130e
Huge update, the bridge actually works now
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712 * |
|
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Huge update, the bridge actually works now
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713 * Returns: the D object or null |
|
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Huge update, the bridge actually works now
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714 */ |
|
19885b43130e
Huge update, the bridge actually works now
Jacob Carlborg <doob@me.com>
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715 package DObjectType getDObject (id self) |
| 1 | 716 { |
|
16
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717 return getObjcIvar!(DObjectType, dObjectVar)(self); |
| 1 | 718 } |
| 719 | |
|
16
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720 /** |
|
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Huge update, the bridge actually works now
Jacob Carlborg <doob@me.com>
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721 * Stores the given D object in the given Objective-C instance |
|
19885b43130e
Huge update, the bridge actually works now
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722 * |
|
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723 * Examples: |
|
19885b43130e
Huge update, the bridge actually works now
Jacob Carlborg <doob@me.com>
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724 * --- |
|
19885b43130e
Huge update, the bridge actually works now
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725 * NSObject object = new NSObject; |
|
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726 * id self = object.objcObject; |
|
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727 * Bridge.setDObject(object, self); |
|
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Huge update, the bridge actually works now
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728 * --- |
|
19885b43130e
Huge update, the bridge actually works now
Jacob Carlborg <doob@me.com>
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729 * |
|
19885b43130e
Huge update, the bridge actually works now
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730 * Params: |
|
19885b43130e
Huge update, the bridge actually works now
Jacob Carlborg <doob@me.com>
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731 * dObject = the D object to store |
|
19885b43130e
Huge update, the bridge actually works now
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732 * objcObject = the Objective-C instance to store the D object in |
|
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Huge update, the bridge actually works now
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733 * |
|
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Huge update, the bridge actually works now
Jacob Carlborg <doob@me.com>
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734 * Returns: the Objective-C instance |
|
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Huge update, the bridge actually works now
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735 */ |
|
19885b43130e
Huge update, the bridge actually works now
Jacob Carlborg <doob@me.com>
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736 package id setDObject (Object dObject, id objcObject) |
| 1 | 737 { |
|
16
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738 auto o = cast(DObjectType) dObject; |
|
19885b43130e
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739 setObjcIvar!(DObjectType, dObjectVar)(objcObject, o); |
| 1 | 740 |
| 741 return objcObject; | |
| 742 } | |
|
16
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743 |
|
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|
744 /** |
|
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745 * Deregisters the given Objective-C instance from the bridge |
|
19885b43130e
Huge update, the bridge actually works now
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746 * |
|
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747 * Params: |
|
19885b43130e
Huge update, the bridge actually works now
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748 * objcInstance = the Objective-C instance to deregister |
|
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749 */ |
|
25
b9de51448c6b
Added an id constructor. Changed the string mixin to a template mixin. Added support for building as a dynamic library
Jacob Carlborg <doob@me.com>
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|
750 package void deregisterObjcInstance (id objcInstance) |
| 1 | 751 { |
|
16
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752 GC.removeRoot(getObjcIvar!(DObjectType, dObjectVar)(objcInstance)); |
|
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753 } |
|
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754 |
|
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Huge update, the bridge actually works now
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755 /** |
|
19885b43130e
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756 * This method wraps the family of $(D_PSYMBOL objc_msgSend) methods which is used to send a message |
|
19885b43130e
Huge update, the bridge actually works now
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757 * to an instance of a class. |
|
19885b43130e
Huge update, the bridge actually works now
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758 * |
|
19885b43130e
Huge update, the bridge actually works now
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759 * This method chooses the appropriate $(D_PSYMBOL objc_msgSend) method depending on the return value, |
|
19885b43130e
Huge update, the bridge actually works now
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760 * decapsulating arguments and encapsulating the return value as appropriate. |
|
19885b43130e
Huge update, the bridge actually works now
Jacob Carlborg <doob@me.com>
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761 * |
|
19885b43130e
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762 * Params: |
|
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Huge update, the bridge actually works now
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763 * R = the return type |
|
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Huge update, the bridge actually works now
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764 * selector = the selector to call |
|
19885b43130e
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765 * ARGS = the argument types |
|
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Huge update, the bridge actually works now
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766 * self = the reciver of the call |
|
19885b43130e
Huge update, the bridge actually works now
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767 * args = the arguments to the method |
|
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Huge update, the bridge actually works now
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|
768 * |
|
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769 * Returns: whatever the method returns, encapsulaed |
|
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770 */ |
|
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771 R invokeObjcMethod (R, string selector, ARGS...) (id self, ARGS args) |
|
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772 { |
|
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773 static assert (checkSelector!(selector, ARGS), "The selector \"" ~ selector ~ "\" and the arguments " ~ ARGS.stringof ~ " do not match"); |
| 1 | 774 |
| 775 SEL sel = sel.registerName!(selector); | |
|
16
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776 ObjcTypes!(ARGS) objcArgs; |
| 1 | 777 |
| 778 foreach (i, a ; args) | |
| 779 { | |
| 780 alias typeof(a) ArgType; | |
| 781 | |
| 782 objcArgs[i] = encapsule!(ArgType)(a); | |
| 783 } | |
| 784 | |
| 785 static if (is(R == struct)) | |
| 786 { | |
|
16
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787 R result; |
| 1 | 788 self.msgSend_stret(result, sel, objcArgs); |
|
16
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789 |
| 1 | 790 return result; |
| 791 } | |
| 792 | |
| 793 else static if (is(R == float) || is(R == double) || is(R == real)) | |
| 794 { | |
| 795 version (X86) | |
|
16
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796 return self.msgSend_fpret!(R, ObjcTypes!(ARGS))(sel, objcArgs); |
| 1 | 797 |
| 798 else version (X86_64) | |
| 799 { | |
| 800 static if (is(R == real)) | |
|
16
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801 return self.msgSend_fpret!(R)(sel, objcArgs); |
| 1 | 802 |
| 803 else | |
| 804 return self.msgSend!(R)(sel, objcArgs); | |
| 805 } | |
| 806 | |
| 807 else | |
| 808 return self.msgSend!(R)(sel, objcArgs); | |
| 809 } | |
| 810 | |
|
16
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811 else static if (needsEncapsulation!(R)) |
|
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812 return decapsule!(R)(self.msgSend(sel, objcArgs)); |
| 1 | 813 |
| 814 else | |
|
16
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815 return self.msgSend!(R, ObjcTypes!(ARGS))(sel, objcArgs); |
| 1 | 816 } |
| 817 | |
|
16
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818 /** |
|
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|
819 * This method wraps the family of $(D_PSYMBOL objc_msgSend) methods which is used to send a message |
|
19885b43130e
Huge update, the bridge actually works now
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820 * to a class. |
|
19885b43130e
Huge update, the bridge actually works now
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821 * |
|
19885b43130e
Huge update, the bridge actually works now
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822 * This method chooses the appropriate $(D_PSYMBOL objc_msgSend) method depending on the return value, |
|
19885b43130e
Huge update, the bridge actually works now
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|
823 * decapsulating arguments and encapsulating the return value as appropriate. |
|
19885b43130e
Huge update, the bridge actually works now
Jacob Carlborg <doob@me.com>
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|
824 * |
|
19885b43130e
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825 * Params: |
|
19885b43130e
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826 * R = the return type |
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827 * selector = the selector to call |
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828 * ARGS = the argument types |
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829 * cls = the reciver of the call |
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830 * args = the arguments to the method |
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Huge update, the bridge actually works now
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831 * |
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832 * Returns: whatever the method returns, encapsulaed |
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Huge update, the bridge actually works now
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833 */ |
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834 R invokeObjcClassMethod (R, string selector, ARGS...) (Class cls, ARGS args) |
| 1 | 835 { |
| 836 return invokeObjcMethod!(R, selector, ARGS)(cast(id) cls, args); | |
| 837 } | |
| 838 | |
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839 /** |
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840 * This method wraps the family of $(D_PSYMBOL objc_msgSendSuper) methods which is used to send a message |
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841 * to an instance of a superclass. |
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842 * |
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843 * This method chooses the appropriate $(D_PSYMBOL objc_msgSendSuper) method depending on the return value, |
|
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844 * decapsulating arguments and encapsulating the return value as appropriate. |
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845 * |
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846 * Params: |
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847 * R = the return type |
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848 * selector = the selector to call |
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849 * ARGS = the argument types |
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850 * self = the reciver of the call |
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851 * args = the arguments to the method |
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852 * |
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853 * Returns: whatever the method returns, encapsulaed |
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Huge update, the bridge actually works now
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854 */ |
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855 R invokeObjcSuperMethod (R, string selector, ARGS...) (objc_super* self, ARGS args) |
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856 { |
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857 static assert (checkSelector!(selector, ARGS), "The selector \"" ~ selector ~ "\" and the arguments " ~ ARGS.stringof ~ " do not match"); |
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858 |
| 1 | 859 SEL sel = sel.registerName!(selector); |
|
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860 ObjcTypes!(ARGS) objcArgs; |
| 1 | 861 |
| 862 foreach (i, a ; args) | |
| 863 { | |
| 864 alias typeof(a) ArgType; | |
| 865 | |
| 866 objcArgs[i] = encapsule!(ArgType)(a); | |
| 867 } | |
| 868 | |
| 869 static if (is(R == struct)) | |
| 870 { | |
|
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871 R result; |
| 1 | 872 self.msgSendSuper_stret(result, sel, objcArgs); |
| 873 | |
|
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874 return result; |
| 1 | 875 } |
| 876 | |
|
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877 else static if (needsEncapsulation!(R)) |
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878 return decapsule!(R)(self.msgSendSuper(sel, objcArgs)); |
| 1 | 879 |
| 880 else | |
|
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881 return self.msgSendSuper!(R, ObjcTypes!(ARGS))(sel, objcArgs); |
| 1 | 882 } |
|
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883 |
|
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884 /** |
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885 * This method wraps a call to a regular C free function, decapsulating arguments and |
|
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886 * encapsulating the return value as appropriate. |
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887 * |
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888 * Params: |
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889 * R = the return type |
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890 * func = the function to call |
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891 * ARGS = the argument types |
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892 * args = the arguments to the function |
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893 * |
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894 * Returns: whatever the method returns, encapsulaed |
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895 */ |
|
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896 R invokeObjcFunction (R, alias func, ARGS...) (ARGS args) |
|
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897 { |
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898 auto funcPtr = &func; // use a function pointer instead of the alias because the function may not be public. |
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899 ObjcTypes!(ARGS) objcArgs; |
|
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900 |
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901 foreach (i, a ; args) |
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902 { |
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903 alias typeof(a) ArgType; |
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904 |
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905 objcArgs[i] = encapsule!(ArgType)(a); |
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906 } |
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907 |
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908 static if (is(R == void)) |
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909 funcPtr(objcArgs); |
|
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910 |
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911 else |
|
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912 return decapsule!(R)(funcPtr(objcArgs)); |
|
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913 } |
| 1 | 914 } |