org.jetbrains.jet.codegen.intrinsics.CopyToArray Maven / Gradle / Ivy

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/*
 * Copyright 2010-2013 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.jetbrains.jet.codegen.intrinsics;

import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.org.objectweb.asm.Type;
import org.jetbrains.org.objectweb.asm.commons.InstructionAdapter;
import org.jetbrains.jet.codegen.ExpressionCodegen;
import org.jetbrains.jet.codegen.StackValue;
import org.jetbrains.jet.lang.psi.JetExpression;

import java.util.List;

import static org.jetbrains.jet.lang.resolve.java.AsmTypeConstants.getType;

public class CopyToArray extends IntrinsicMethod {
    @NotNull
    @Override
    public Type generateImpl(
            @NotNull ExpressionCodegen codegen,
            @NotNull InstructionAdapter v,
            @NotNull Type returnType,
            @Nullable PsiElement element,
            @Nullable List arguments,
            @Nullable StackValue receiver
    ) {
        assert receiver != null;
        receiver.put(receiver.type, v);
        v.dup();
        v.invokeinterface("java/util/Collection", "size", "()I");

        v.newarray(returnType.getElementType());
        v.invokeinterface("java/util/Collection", "toArray", "([Ljava/lang/Object;)[Ljava/lang/Object;");

        return getType(Object[].class);
    }
}