Java Code Examples for sun.invoke.util.VerifyType#spreadArgElementType()

The following examples show how to use sun.invoke.util.VerifyType#spreadArgElementType() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: MethodHandleImpl.java    From jdk8u-jdk with GNU General Public License v2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 2
Source File: MethodHandleImpl.java    From jdk8u-dev-jdk with GNU General Public License v2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 3
Source File: MethodHandleImpl.java    From jdk-1.7-annotated with Apache License 2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 4
Source File: MethodHandleImpl.java    From jdk8u-jdk with GNU General Public License v2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 5
Source File: MethodHandleImpl.java    From jdk8u_jdk with GNU General Public License v2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 6
Source File: MethodHandleImpl.java    From openjdk-8 with GNU General Public License v2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 7
Source File: MethodHandleImpl.java    From openjdk-8-source with GNU General Public License v2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 8
Source File: MethodHandleImpl.java    From hottub with GNU General Public License v2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 9
Source File: MethodHandleImpl.java    From Java8CN with Apache License 2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 10
Source File: MethodHandleImpl.java    From jdk1.8-source-analysis with Apache License 2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 11
Source File: MethodHandleImpl.java    From openjdk-jdk9 with GNU General Public License v2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 12
Source File: MethodHandleImpl.java    From Bytecoder with Apache License 2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(getFunction(NF_checkSpreadArgument), array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(new NamedFunction(aload, Intrinsic.ARRAY_LOAD), array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm(lambdaType.parameterCount(), names, Kind.SPREAD);
    return SimpleMethodHandle.make(srcType, form);
}
Example 13
Source File: MethodHandleImpl.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 14
Source File: MethodHandleImpl.java    From openjdk-jdk8u with GNU General Public License v2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 15
Source File: MethodHandleImpl.java    From JDKSourceCode1.8 with MIT License 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 16
Source File: MethodHandleImpl.java    From jdk8u60 with GNU General Public License v2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 17
Source File: MethodHandleImpl.java    From TencentKona-8 with GNU General Public License v2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}
Example 18
Source File: MethodHandleImpl.java    From dragonwell8_jdk with GNU General Public License v2.0 4 votes vote down vote up 
/** Factory method:  Spread selected argument. */
static MethodHandle makeSpreadArguments(MethodHandle target,
                                        Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
    MethodType targetType = target.type();

    for (int i = 0; i < spreadArgCount; i++) {
        Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i);
        if (arg == null)  arg = Object.class;
        targetType = targetType.changeParameterType(spreadArgPos + i, arg);
    }
    target = target.asType(targetType);

    MethodType srcType = targetType
            .replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType);
    // Now build a LambdaForm.
    MethodType lambdaType = srcType.invokerType();
    Name[] names = arguments(spreadArgCount + 2, lambdaType);
    int nameCursor = lambdaType.parameterCount();
    int[] indexes = new int[targetType.parameterCount()];

    for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) {
        Class<?> src = lambdaType.parameterType(i);
        if (i == spreadArgPos) {
            // Spread the array.
            MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType);
            Name array = names[argIndex];
            names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount);
            for (int j = 0; j < spreadArgCount; i++, j++) {
                indexes[i] = nameCursor;
                names[nameCursor++] = new Name(aload, array, j);
            }
        } else if (i < indexes.length) {
            indexes[i] = argIndex;
        }
    }
    assert(nameCursor == names.length-1);  // leave room for the final call

    // Build argument array for the call.
    Name[] targetArgs = new Name[targetType.parameterCount()];
    for (int i = 0; i < targetType.parameterCount(); i++) {
        int idx = indexes[i];
        targetArgs[i] = names[idx];
    }
    names[names.length - 1] = new Name(target, (Object[]) targetArgs);

    LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names);
    return SimpleMethodHandle.make(srcType, form);
}