Files
kotlin-fork/compiler/testData/codegen/box/defaultArguments/function/defaultLambdaInline.kt
T
Mads Ager fae5b8da4b [JVM] Do not put the name of default lambda parameter in LVT.
If we do, the local variable table will not make sense. As as
example:

```
inline fun foo(getString: () -> String = { "OK" }) {
  println(getString())
}

inline fun bar() {
}

fun main() {
    bar()
    foo()
}
```

leads to the following bytecode:

```
  public static final void main();
    descriptor: ()V
    flags: ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    Code:
      stack=2, locals=4, args_size=0
         0: iconst_0
         1: istore_0
         2: nop
         3: nop
         4: iconst_0
         5: istore_1
         6: nop
         7: ldc           #53                 // String OK
         9: astore_2
        10: iconst_0
        11: istore_3
        12: getstatic     #30                 // Field java/lang/System.out:Ljava/io/PrintStream;
        15: aload_2
        16: invokevirtual #36                 // Method java/io/PrintStream.println:(Ljava/lang/Object;)V
        19: nop
        20: return
      LineNumberTable:
        line 9: 0
        line 13: 2
        line 10: 3
        line 14: 4
        line 15: 6
        line 16: 7
        line 17: 19
        line 11: 20
      LocalVariableTable:
        Start  Length  Slot  Name   Signature
            2       1     0 $i$f$bar   I
            6      14     1 $i$f$foo   I
            4      16     0 getString$iv   Lkotlin/jvm/functions/Function0;
```

The `getString$iv` local should not be there. It has been inlined away.
Leaving it in the local variable table leads to inconsistent locals
info. Local 0 contains an int but we declare a local of type
Function0.
2020-12-03 13:41:36 +01:00

7 lines
127 B
Kotlin
Vendored

inline fun f(getString: () -> String = { "OK" }) = getString()
inline fun g() { }
fun box(): String {
g()
return f()
}