All Downloads are FREE. Search and download functionalities are using the official Maven repository.

kotlin.jvm.internal.AdaptedFunctionReference Maven / Gradle / Ivy

There is a newer version: 2.1.0-Beta1
Show newest version
/*
 * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
 * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
 */

package kotlin.jvm.internal;

import kotlin.SinceKotlin;
import kotlin.reflect.KDeclarationContainer;

import java.io.Serializable;

import static kotlin.jvm.internal.CallableReference.NO_RECEIVER;

/**
 * Superclass for instances of adapted function references, i.e. references where expected function type differs
 * from the target function signature: 
 *     fun target(s: String? = ""): String = s!!
 *     fun use(f: () -> Unit) {}
 *     use(::target)  // adapted function reference (default argument conversion + coercion to Unit)
 * 
* * It doesn't inherit from {@link FunctionReference} because such references don't support reflection yet. * Once this changes in the future, the JVM codegen may simply use {@link FunctionReferenceImpl} * for adapted function references instead of this class. */ @SuppressWarnings({"rawtypes", "WeakerAccess", "unused"}) @SinceKotlin(version = "1.4") public class AdaptedFunctionReference implements FunctionBase, Serializable { protected final Object receiver; private final Class owner; private final String name; private final String signature; private final boolean isTopLevel; private final int arity; private final int flags; public AdaptedFunctionReference(int arity, Class owner, String name, String signature, int flags) { this(arity, NO_RECEIVER, owner, name, signature, flags); } public AdaptedFunctionReference(int arity, Object receiver, Class owner, String name, String signature, int flags) { this.receiver = receiver; this.owner = owner; this.name = name; this.signature = signature; this.isTopLevel = (flags & 1) == 1; this.arity = arity; this.flags = flags >> 1; } @Override public int getArity() { return arity; } public KDeclarationContainer getOwner() { return owner == null ? null : isTopLevel ? Reflection.getOrCreateKotlinPackage(owner) : Reflection.getOrCreateKotlinClass(owner); } @Override public boolean equals(Object o) { if (this == o) return true; if (!(o instanceof AdaptedFunctionReference)) return false; AdaptedFunctionReference other = (AdaptedFunctionReference) o; return isTopLevel == other.isTopLevel && arity == other.arity && flags == other.flags && Intrinsics.areEqual(receiver, other.receiver) && Intrinsics.areEqual(owner, other.owner) && name.equals(other.name) && signature.equals(other.signature); } @Override public int hashCode() { int result = receiver != null ? receiver.hashCode() : 0; result = result * 31 + (owner != null ? owner.hashCode() : 0); result = result * 31 + name.hashCode(); result = result * 31 + signature.hashCode(); result = result * 31 + (isTopLevel ? 1231 : 1237); result = result * 31 + arity; result = result * 31 + flags; return result; } @Override public String toString() { return Reflection.renderLambdaToString(this); } }




© 2015 - 2024 Weber Informatics LLC | Privacy Policy