1 .class public LHelloWorldLambda; 2 3 #Ye olde hello world application (with lambdas!) 4 #To assemble and run this on a phone or emulator: 5 # 6 #java -jar smali.jar -o classes.dex HelloWorldLambda.smali HelloWorldFunctionalInterface.smali 7 #zip HelloWorld.zip classes.dex 8 #adb push HelloWorld.zip /data/local 9 #adb shell dalvikvm -cp /data/local/HelloWorld.zip HelloWorld 10 # 11 #if you get out of memory type errors when running smali.jar, try 12 #java -Xmx512m -jar smali.jar HelloWorldLambda.smali 13 #instead 14 15 .super Ljava/lang/Object; 16 17 .method public static doHelloWorld(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V 18 .registers 6 # 4 parameters, 2 locals 19 liberate-variable v0, p0, "helloworld" 20 21 sget-object v1, Ljava/lang/System;->out:Ljava/io/PrintStream; 22 invoke-virtual {v1, v0}, Ljava/io/PrintStream;->println(Ljava/lang/String;)V 23 24 return-void 25 .end method 26 27 .method public static main([Ljava/lang/String;)V 28 .registers 9 # 1 parameter, 8 locals 29 30 sget-object v0, Ljava/lang/System;->out:Ljava/io/PrintStream; 31 32 const-string v1, "Hello World!" 33 const-string v2, "How" # vD 34 const-string v3, "are" # vE 35 const-string v4, "you" # vF 36 const-string v5, "doing?" # vG 37 38 capture-variable v1, "helloworld" 39 40 # TODO: do I need to pass the type of the lambda's functional interface here as a type id? 41 create-lambda v1, LHelloWorldLambda;->doHelloWorld(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V 42 # Method descriptor is not required here, because only the single-abstract method is ever invoked. 43 invoke-lambda v1, {v2, v3, v4, v5} 44 45 box-lambda v6, v1 46 invoke-virtual {v6, v2, v3, v4, v5}, LHelloWorldFunctionalInterface;->applyFourStrings(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V 47 48 # FIXME: should be \HelloWorldFunctionalInterface; instead of L...; 49 50 # TODO: do we really need the type descriptor here at all? 51 unbox-lambda v7, v6, LHelloWorldFunctionalInterface; 52 invoke-lambda v7, {v2, v3, v4, v5} 53 54 return-void 55 .end method 56
