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Support tailrec suspend functions in JVM backend

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The main problem is that inside a state machine for a named suspend
function parameters of it's owner are available as a usual captured
closure parameters (i.e. through synthetic fields), while
TailRecursion codegen expects that parameters are straight local
variables.

So, the solution is just to define local var for each of real parameters
(all but the last continuation parameters) for tailrec functions.

 #KT-15759 Fixed
This commit is contained in:
Denis Zharkov
2017-02-01 16:46:36 +03:00
parent d7403ca185
commit 0878049f15
9 changed files with 172 additions and 27 deletions
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compiler/testData/codegen/light-analysis/coroutines/featureIntersection/tailrec.txt
Vendored
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@kotlin.Metadata
public final class CoroutineUtilKt {
public final static @org.jetbrains.annotations.NotNull method handleExceptionContinuation(@org.jetbrains.annotations.NotNull p0: kotlin.jvm.functions.Function1): kotlin.coroutines.experimental.Continuation
public final static @org.jetbrains.annotations.NotNull method handleResultContinuation(@org.jetbrains.annotations.NotNull p0: kotlin.jvm.functions.Function1): kotlin.coroutines.experimental.Continuation
}
@kotlin.Metadata
public class EmptyContinuation {
public final static field Companion: EmptyContinuation.Companion
private final @org.jetbrains.annotations.NotNull field context: kotlin.coroutines.experimental.CoroutineContext
inner class EmptyContinuation/Companion
public @synthetic.kotlin.jvm.GeneratedByJvmOverloads method <init>(): void
public method <init>(@org.jetbrains.annotations.NotNull p0: kotlin.coroutines.experimental.CoroutineContext): void
public synthetic method <init>(p0: kotlin.coroutines.experimental.CoroutineContext, p1: int, p2: kotlin.jvm.internal.DefaultConstructorMarker): void
public @org.jetbrains.annotations.NotNull method getContext(): kotlin.coroutines.experimental.CoroutineContext
public method resume(@org.jetbrains.annotations.Nullable p0: java.lang.Object): void
public method resumeWithException(@org.jetbrains.annotations.NotNull p0: java.lang.Throwable): void
}
@kotlin.Metadata
public final static class EmptyContinuation/Companion {
inner class EmptyContinuation/Companion
private method <init>(): void
}
@kotlin.Metadata
public final class TailrecKt {
public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
public final static method builder(@org.jetbrains.annotations.NotNull p0: kotlin.jvm.functions.Function1): void
public final static @org.jetbrains.annotations.Nullable method fromTo(@org.jetbrains.annotations.NotNull p0: java.util.ArrayList, p1: int, p2: int, @org.jetbrains.annotations.NotNull p3: kotlin.coroutines.experimental.Continuation): java.lang.Object
public final static @org.jetbrains.annotations.Nullable method yield(@org.jetbrains.annotations.NotNull p0: java.util.ArrayList, p1: int, @org.jetbrains.annotations.NotNull p2: kotlin.coroutines.experimental.Continuation): java.lang.Object
}