marco-c
commented
9 years ago An example of a compiled function is in https://github.com/mozilla/j2me.js/pull/1312#issuecomment-86294585.
The bytecode of the function is:
public synchronized java.util.TimeZone getInstance(java.lang.String);
descriptor: (Ljava/lang/String;)Ljava/util/TimeZone;
flags: ACC_PUBLIC, ACC_SYNCHRONIZED
Code:
stack=2, locals=2, args_size=2
0: aload_1
1: ifnonnull 33
4: getstatic #164 // Field HOME_ID:Ljava/lang/String;
7: ifnonnull 29
10: ldc #4 // String com.sun.cldc.util.j2me.TimeZoneImpl.timezone
12: invokestatic #93 // Method java/lang/System.getProperty:(Ljava/lang/String;)Ljava/lang/String;
15: putstatic #164 // Field HOME_ID:Ljava/lang/String;
18: getstatic #164 // Field HOME_ID:Ljava/lang/String;
21: ifnonnull 29
24: ldc #136 // String UTC
26: putstatic #164 // Field HOME_ID:Ljava/lang/String;
29: getstatic #164 // Field HOME_ID:Ljava/lang/String;
32: astore_1
33: iconst_0
34: istore_0
35: iload_0
36: getstatic #112 // Field zones:[Ljava/util/TimeZone;
39: arraylength
40: if_icmpge 73
43: getstatic #112 // Field zones:[Ljava/util/TimeZone;
46: iload_0
47: aaload
48: checkcast #133 // class com/sun/cldc/util/j2me/TimeZoneImpl
51: getfield #141 // Field ID:Ljava/lang/String;
54: aload_1
55: invokevirtual #89 // Method java/lang/String.equals:(Ljava/lang/Object;)Z
58: ifeq 67
61: getstatic #112 // Field zones:[Ljava/util/TimeZone;
64: iload_0
65: aaload
66: areturn
67: iinc 0, 1
70: goto 35
73: aload_1
74: invokestatic #159 // Method parseCustomTimeZone:(Ljava/lang/String;)Ljava/util/TimeZone;
77: areturn
We should add a Jasmin test that does something like this: public synchronized void method() iconst_0 istore_0
This way we override the first local with the integer value 0