1# 2# Copyright (C) 2015 The Android Open Source Project 3# 4# Licensed under the Apache License, Version 2.0 (the "License"); 5# you may not use this file except in compliance with the License. 6# You may obtain a copy of the License at 7# 8# http://www.apache.org/licenses/LICENSE-2.0 9# 10# Unless required by applicable law or agreed to in writing, software 11# distributed under the License is distributed on an "AS IS" BASIS, 12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13# See the License for the specific language governing permissions and 14# limitations under the License. 15# 16.class public LCaptureVariables; 17.super Ljava/lang/Object; 18 19.method public constructor <init>()V 20.registers 1 21 invoke-direct {p0}, Ljava/lang/Object;-><init>()V 22 return-void 23.end method 24 25.method public static run()V 26.registers 8 27 # Test boolean capture 28 const v2, 1 # v2 = true 29 capture-variable v2, "Z" 30 create-lambda v0, LCaptureVariables;->printCapturedVariable_Z(J)V 31 # TODO: create-lambda should not write to both v0 and v1 32 invoke-lambda v0, {} 33 34 # Test byte capture 35 const v2, 82 # v2 = 82, 'R' 36 capture-variable v2, "B" 37 create-lambda v0, LCaptureVariables;->printCapturedVariable_B(J)V 38 # TODO: create-lambda should not write to both v0 and v1 39 invoke-lambda v0, {} 40 41 # Test char capture 42 const v2, 0x2202 # v2 = 0x2202, '∂' 43 capture-variable v2, "C" 44 create-lambda v0, LCaptureVariables;->printCapturedVariable_C(J)V 45 # TODO: create-lambda should not write to both v0 and v1 46 invoke-lambda v0, {} 47 48 # Test short capture 49 const v2, 1000 # v2 = 1000 50 capture-variable v2, "S" 51 create-lambda v0, LCaptureVariables;->printCapturedVariable_S(J)V 52 # TODO: create-lambda should not write to both v0 and v1 53 invoke-lambda v0, {} 54 55 # Test int capture 56 const v2, 12345678 57 capture-variable v2, "I" 58 create-lambda v0, LCaptureVariables;->printCapturedVariable_I(J)V 59 # TODO: create-lambda should not write to both v0 and v1 60 invoke-lambda v0, {} 61 62 # Test long capture 63 const-wide v2, 0x0badf00dc0ffeeL # v2 = 3287471278325742 64 capture-variable v2, "J" 65 create-lambda v0, LCaptureVariables;->printCapturedVariable_J(J)V 66 # TODO: create-lambda should not write to both v0 and v1 67 invoke-lambda v0, {} 68 69 # Test float capture 70 const v2, infinityf 71 capture-variable v2, "F" 72 create-lambda v0, LCaptureVariables;->printCapturedVariable_F(J)V 73 # TODO: create-lambda should not write to both v0 and v1 74 invoke-lambda v0, {} 75 76 # Test double capture 77 const-wide v2, -infinity 78 capture-variable v2, "D" 79 create-lambda v0, LCaptureVariables;->printCapturedVariable_D(J)V 80 # TODO: create-lambda should not write to both v0 and v1 81 invoke-lambda v0, {} 82 83 #TODO: capture objects and lambdas once we have support for it 84 85 # Test capturing multiple variables 86 invoke-static {}, LCaptureVariables;->testMultipleCaptures()V 87 88 # Test failures 89 invoke-static {}, LCaptureVariables;->testFailures()V 90 91 return-void 92.end method 93 94#TODO: should use a closure type instead of a long 95.method public static printCapturedVariable_Z(J)V 96 .registers 5 # 1 wide parameter, 3 locals 97 98 const-string v0, "(CaptureVariables) (0-args, 1 captured variable 'Z'): value is " 99 100 sget-object v1, Ljava/lang/System;->out:Ljava/io/PrintStream; 101 invoke-virtual {v1, v0}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 102 103 liberate-variable v2, p0, "Z" 104 invoke-virtual {v1, v2}, Ljava/io/PrintStream;->println(Z)V 105 106 return-void 107.end method 108 109#TODO: should use a closure type instead of a long 110.method public static printCapturedVariable_B(J)V 111 .registers 5 # 1 wide parameter, 3 locals 112 113 const-string v0, "(CaptureVariables) (0-args, 1 captured variable 'B'): value is " 114 115 sget-object v1, Ljava/lang/System;->out:Ljava/io/PrintStream; 116 invoke-virtual {v1, v0}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 117 118 liberate-variable v2, p0, "B" 119 invoke-virtual {v1, v2}, Ljava/io/PrintStream;->println(C)V # no println(B), use char instead. 120 121 return-void 122.end method 123 124#TODO: should use a closure type instead of a long 125.method public static printCapturedVariable_C(J)V 126 .registers 5 # 1 wide parameter, 3 locals 127 128 const-string v0, "(CaptureVariables) (0-args, 1 captured variable 'C'): value is " 129 130 sget-object v1, Ljava/lang/System;->out:Ljava/io/PrintStream; 131 invoke-virtual {v1, v0}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 132 133 liberate-variable v2, p0, "C" 134 invoke-virtual {v1, v2}, Ljava/io/PrintStream;->println(C)V 135 136 return-void 137.end method 138 139#TODO: should use a closure type instead of a long 140.method public static printCapturedVariable_S(J)V 141 .registers 5 # 1 wide parameter, 3 locals 142 143 const-string v0, "(CaptureVariables) (0-args, 1 captured variable 'S'): value is " 144 145 sget-object v1, Ljava/lang/System;->out:Ljava/io/PrintStream; 146 invoke-virtual {v1, v0}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 147 148 liberate-variable v2, p0, "S" 149 invoke-virtual {v1, v2}, Ljava/io/PrintStream;->println(I)V # no println(S), use int instead 150 151 return-void 152.end method 153 154#TODO: should use a closure type instead of a long 155.method public static printCapturedVariable_I(J)V 156 .registers 5 # 1 wide parameter, 3 locals 157 158 const-string v0, "(CaptureVariables) (0-args, 1 captured variable 'I'): value is " 159 160 sget-object v1, Ljava/lang/System;->out:Ljava/io/PrintStream; 161 invoke-virtual {v1, v0}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 162 163 liberate-variable v2, p0, "I" 164 invoke-virtual {v1, v2}, Ljava/io/PrintStream;->println(I)V 165 166 return-void 167.end method 168 169#TODO: should use a closure type instead of a long 170.method public static printCapturedVariable_J(J)V 171 .registers 6 # 1 wide parameter, 4 locals 172 173 const-string v0, "(CaptureVariables) (0-args, 1 captured variable 'J'): value is " 174 175 sget-object v1, Ljava/lang/System;->out:Ljava/io/PrintStream; 176 invoke-virtual {v1, v0}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 177 178 liberate-variable v2, p0, "J" 179 invoke-virtual {v1, v2, v3}, Ljava/io/PrintStream;->println(J)V 180 181 return-void 182.end method 183 184#TODO: should use a closure type instead of a long 185.method public static printCapturedVariable_F(J)V 186 .registers 5 # 1 parameter, 4 locals 187 188 const-string v0, "(CaptureVariables) (0-args, 1 captured variable 'F'): value is " 189 190 sget-object v1, Ljava/lang/System;->out:Ljava/io/PrintStream; 191 invoke-virtual {v1, v0}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 192 193 liberate-variable v2, p0, "F" 194 invoke-virtual {v1, v2}, Ljava/io/PrintStream;->println(F)V 195 196 return-void 197.end method 198 199#TODO: should use a closure type instead of a long 200.method public static printCapturedVariable_D(J)V 201 .registers 6 # 1 wide parameter, 4 locals 202 203 const-string v0, "(CaptureVariables) (0-args, 1 captured variable 'D'): value is " 204 205 sget-object v1, Ljava/lang/System;->out:Ljava/io/PrintStream; 206 invoke-virtual {v1, v0}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 207 208 liberate-variable v2, p0, "D" 209 invoke-virtual {v1, v2, v3}, Ljava/io/PrintStream;->println(D)V 210 211 return-void 212.end method 213 214# Test capturing more than one variable. 215.method private static testMultipleCaptures()V 216 .registers 4 # 0 parameters, 4 locals 217 218 const v2, 1 # v2 = true 219 capture-variable v2, "Z" 220 221 const v2, 82 # v2 = 82, 'R' 222 capture-variable v2, "B" 223 224 const v2, 0x2202 # v2 = 0x2202, '∂' 225 capture-variable v2, "C" 226 227 const v2, 1000 # v2 = 1000 228 capture-variable v2, "S" 229 230 const v2, 12345678 231 capture-variable v2, "I" 232 233 const-wide v2, 0x0badf00dc0ffeeL # v2 = 3287471278325742 234 capture-variable v2, "J" 235 236 const v2, infinityf 237 capture-variable v2, "F" 238 239 const-wide v2, -infinity 240 capture-variable v2, "D" 241 242 create-lambda v0, LCaptureVariables;->printCapturedVariable_ZBCSIJFD(J)V 243 # TODO: create-lambda should not write to both v0 and v1 244 invoke-lambda v0, {} 245 246.end method 247 248#TODO: should use a closure type instead of a long 249.method public static printCapturedVariable_ZBCSIJFD(J)V 250 .registers 7 # 1 wide parameter, 5 locals 251 252 const-string v0, "(CaptureVariables) (0-args, 8 captured variable 'ZBCSIJFD'): value is " 253 const-string v4, "," 254 255 sget-object v1, Ljava/lang/System;->out:Ljava/io/PrintStream; 256 invoke-virtual {v1, v0}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 257 258 liberate-variable v2, p0, "Z" 259 invoke-virtual {v1, v2}, Ljava/io/PrintStream;->print(Z)V 260 invoke-virtual {v1, v4}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 261 262 liberate-variable v2, p0, "B" 263 invoke-virtual {v1, v2}, Ljava/io/PrintStream;->print(C)V 264 invoke-virtual {v1, v4}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 265 266 liberate-variable v2, p0, "C" 267 invoke-virtual {v1, v2}, Ljava/io/PrintStream;->print(C)V 268 invoke-virtual {v1, v4}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 269 270 liberate-variable v2, p0, "S" 271 invoke-virtual {v1, v2}, Ljava/io/PrintStream;->print(I)V 272 invoke-virtual {v1, v4}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 273 274 liberate-variable v2, p0, "I" 275 invoke-virtual {v1, v2}, Ljava/io/PrintStream;->print(I)V 276 invoke-virtual {v1, v4}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 277 278 liberate-variable v2, p0, "J" 279 invoke-virtual {v1, v2, v3}, Ljava/io/PrintStream;->print(J)V 280 invoke-virtual {v1, v4}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 281 282 liberate-variable v2, p0, "F" 283 invoke-virtual {v1, v2}, Ljava/io/PrintStream;->print(F)V 284 invoke-virtual {v1, v4}, Ljava/io/PrintStream;->print(Ljava/lang/String;)V 285 286 liberate-variable v2, p0, "D" 287 invoke-virtual {v1, v2, v3}, Ljava/io/PrintStream;->println(D)V 288 289 return-void 290.end method 291 292# Test exceptions are thrown as expected when used opcodes incorrectly 293.method private static testFailures()V 294 .registers 4 # 0 parameters, 4 locals 295 296 const v0, 0 # v0 = null 297 const v1, 0 # v1 = null 298:start 299 liberate-variable v0, v2, "Z" # invoking a null lambda shall raise an NPE 300:end 301 return-void 302 303:handler 304 const-string v2, "(CaptureVariables) Caught NPE" 305 sget-object v3, Ljava/lang/System;->out:Ljava/io/PrintStream; 306 invoke-virtual {v3, v2}, Ljava/io/PrintStream;->println(Ljava/lang/String;)V 307 308 return-void 309 310 .catch Ljava/lang/NullPointerException; {:start .. :end} :handler 311.end method 312