Java Code Examples for java.lang.invoke.MethodType#appendParameterTypes()

The following examples show how to use java.lang.invoke.MethodType#appendParameterTypes() . 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: RecompilableScriptFunctionData.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up 
private MethodType explicitParams(final MethodType callSiteType) {
    if (CompiledFunction.isVarArgsType(callSiteType)) {
        return null;
    }

    final MethodType noCalleeThisType = callSiteType.dropParameterTypes(0, 2); // (callee, this) is always in call site type
    final int callSiteParamCount = noCalleeThisType.parameterCount();

    // Widen parameters of reference types to Object as we currently don't care for specialization among reference
    // types. E.g. call site saying (ScriptFunction, Object, String) should still link to (ScriptFunction, Object, Object)
    final Class<?>[] paramTypes = noCalleeThisType.parameterArray();
    boolean changed = false;
    for (int i = 0; i < paramTypes.length; ++i) {
        final Class<?> paramType = paramTypes[i];
        if (!(paramType.isPrimitive() || paramType == Object.class)) {
            paramTypes[i] = Object.class;
            changed = true;
        }
    }
    final MethodType generalized = changed ? MethodType.methodType(noCalleeThisType.returnType(), paramTypes) : noCalleeThisType;

    if (callSiteParamCount < getArity()) {
        return generalized.appendParameterTypes(Collections.<Class<?>>nCopies(getArity() - callSiteParamCount, Object.class));
    }
    return generalized;
}
Example 2
Source File: RecompilableScriptFunctionData.java    From jdk8u60 with GNU General Public License v2.0 6 votes vote down vote up 
private MethodType explicitParams(final MethodType callSiteType) {
    if (CompiledFunction.isVarArgsType(callSiteType)) {
        return null;
    }

    final MethodType noCalleeThisType = callSiteType.dropParameterTypes(0, 2); // (callee, this) is always in call site type
    final int callSiteParamCount = noCalleeThisType.parameterCount();

    // Widen parameters of reference types to Object as we currently don't care for specialization among reference
    // types. E.g. call site saying (ScriptFunction, Object, String) should still link to (ScriptFunction, Object, Object)
    final Class<?>[] paramTypes = noCalleeThisType.parameterArray();
    boolean changed = false;
    for (int i = 0; i < paramTypes.length; ++i) {
        final Class<?> paramType = paramTypes[i];
        if (!(paramType.isPrimitive() || paramType == Object.class)) {
            paramTypes[i] = Object.class;
            changed = true;
        }
    }
    final MethodType generalized = changed ? MethodType.methodType(noCalleeThisType.returnType(), paramTypes) : noCalleeThisType;

    if (callSiteParamCount < getArity()) {
        return generalized.appendParameterTypes(Collections.<Class<?>>nCopies(getArity() - callSiteParamCount, Object.class));
    }
    return generalized;
}
Example 3
Source File: TypeMap.java    From jdk8u60 with GNU General Public License v2.0 6 votes vote down vote up 
MethodType getCallSiteType(final FunctionNode functionNode) {
    final Type[] types = paramTypeMap.get(functionNode.getId());
    if (types == null) {
        return null;
    }

    MethodType mt = MethodType.methodType(returnTypeMap.get(functionNode.getId()).getTypeClass());
    if (needsCallee) {
        mt = mt.appendParameterTypes(ScriptFunction.class);
    }

    mt = mt.appendParameterTypes(Object.class); //this

    for (final Type type : types) {
        if (type == null) {
            return null; // not all parameter information is supplied
        }
        mt = mt.appendParameterTypes(type.getTypeClass());
    }

    return mt;
}
Example 4
Source File: RecompilableScriptFunctionData.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
private MethodType explicitParams(final MethodType callSiteType) {
    if (CompiledFunction.isVarArgsType(callSiteType)) {
        return null;
    }

    final MethodType noCalleeThisType = callSiteType.dropParameterTypes(0, 2); // (callee, this) is always in call site type
    final int callSiteParamCount = noCalleeThisType.parameterCount();

    // Widen parameters of reference types to Object as we currently don't care for specialization among reference
    // types. E.g. call site saying (ScriptFunction, Object, String) should still link to (ScriptFunction, Object, Object)
    final Class<?>[] paramTypes = noCalleeThisType.parameterArray();
    boolean changed = false;
    for (int i = 0; i < paramTypes.length; ++i) {
        final Class<?> paramType = paramTypes[i];
        if (!(paramType.isPrimitive() || paramType == Object.class)) {
            paramTypes[i] = Object.class;
            changed = true;
        }
    }
    final MethodType generalized = changed ? MethodType.methodType(noCalleeThisType.returnType(), paramTypes) : noCalleeThisType;

    if (callSiteParamCount < getArity()) {
        return generalized.appendParameterTypes(Collections.<Class<?>>nCopies(getArity() - callSiteParamCount, Object.class));
    }
    return generalized;
}
Example 5
Source File: RecompilableScriptFunctionData.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 6 votes vote down vote up 
private MethodType explicitParams(final MethodType callSiteType) {
    if (CompiledFunction.isVarArgsType(callSiteType)) {
        return null;
    }

    final MethodType noCalleeThisType = callSiteType.dropParameterTypes(0, 2); // (callee, this) is always in call site type
    final int callSiteParamCount = noCalleeThisType.parameterCount();

    // Widen parameters of reference types to Object as we currently don't care for specialization among reference
    // types. E.g. call site saying (ScriptFunction, Object, String) should still link to (ScriptFunction, Object, Object)
    final Class<?>[] paramTypes = noCalleeThisType.parameterArray();
    boolean changed = false;
    for (int i = 0; i < paramTypes.length; ++i) {
        final Class<?> paramType = paramTypes[i];
        if (!(paramType.isPrimitive() || paramType == Object.class)) {
            paramTypes[i] = Object.class;
            changed = true;
        }
    }
    final MethodType generalized = changed ? MethodType.methodType(noCalleeThisType.returnType(), paramTypes) : noCalleeThisType;

    if (callSiteParamCount < getArity()) {
        return generalized.appendParameterTypes(Collections.<Class<?>>nCopies(getArity() - callSiteParamCount, Object.class));
    }
    return generalized;
}
Example 6
Source File: RecompilableScriptFunctionData.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
private MethodType explicitParams(final MethodType callSiteType) {
    if (CompiledFunction.isVarArgsType(callSiteType)) {
        return null;
    }

    final MethodType noCalleeThisType = callSiteType.dropParameterTypes(0, 2); // (callee, this) is always in call site type
    final int callSiteParamCount = noCalleeThisType.parameterCount();

    // Widen parameters of reference types to Object as we currently don't care for specialization among reference
    // types. E.g. call site saying (ScriptFunction, Object, String) should still link to (ScriptFunction, Object, Object)
    final Class<?>[] paramTypes = noCalleeThisType.parameterArray();
    boolean changed = false;
    for (int i = 0; i < paramTypes.length; ++i) {
        final Class<?> paramType = paramTypes[i];
        if (!(paramType.isPrimitive() || paramType == Object.class)) {
            paramTypes[i] = Object.class;
            changed = true;
        }
    }
    final MethodType generalized = changed ? MethodType.methodType(noCalleeThisType.returnType(), paramTypes) : noCalleeThisType;

    if (callSiteParamCount < getArity()) {
        return generalized.appendParameterTypes(Collections.<Class<?>>nCopies(getArity() - callSiteParamCount, Object.class));
    }
    return generalized;
}
Example 7
Source File: RecompilableScriptFunctionData.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
private MethodType explicitParams(final MethodType callSiteType) {
    if (CompiledFunction.isVarArgsType(callSiteType)) {
        return null;
    }

    final MethodType noCalleeThisType = callSiteType.dropParameterTypes(0, 2); // (callee, this) is always in call site type
    final int callSiteParamCount = noCalleeThisType.parameterCount();

    // Widen parameters of reference types to Object as we currently don't care for specialization among reference
    // types. E.g. call site saying (ScriptFunction, Object, String) should still link to (ScriptFunction, Object, Object)
    final Class<?>[] paramTypes = noCalleeThisType.parameterArray();
    boolean changed = false;
    for (int i = 0; i < paramTypes.length; ++i) {
        final Class<?> paramType = paramTypes[i];
        if (!(paramType.isPrimitive() || paramType == Object.class)) {
            paramTypes[i] = Object.class;
            changed = true;
        }
    }
    final MethodType generalized = changed ? MethodType.methodType(noCalleeThisType.returnType(), paramTypes) : noCalleeThisType;

    if (callSiteParamCount < getArity()) {
        return generalized.appendParameterTypes(Collections.<Class<?>>nCopies(getArity() - callSiteParamCount, Object.class));
    }
    return generalized;
}
Example 8
Source File: RecompilableScriptFunctionData.java    From jdk8u_nashorn with GNU General Public License v2.0 6 votes vote down vote up 
private MethodType explicitParams(final MethodType callSiteType) {
    if (CompiledFunction.isVarArgsType(callSiteType)) {
        return null;
    }

    final MethodType noCalleeThisType = callSiteType.dropParameterTypes(0, 2); // (callee, this) is always in call site type
    final int callSiteParamCount = noCalleeThisType.parameterCount();

    // Widen parameters of reference types to Object as we currently don't care for specialization among reference
    // types. E.g. call site saying (ScriptFunction, Object, String) should still link to (ScriptFunction, Object, Object)
    final Class<?>[] paramTypes = noCalleeThisType.parameterArray();
    boolean changed = false;
    for (int i = 0; i < paramTypes.length; ++i) {
        final Class<?> paramType = paramTypes[i];
        if (!(paramType.isPrimitive() || paramType == Object.class)) {
            paramTypes[i] = Object.class;
            changed = true;
        }
    }
    final MethodType generalized = changed ? MethodType.methodType(noCalleeThisType.returnType(), paramTypes) : noCalleeThisType;

    if (callSiteParamCount < getArity()) {
        return generalized.appendParameterTypes(Collections.<Class<?>>nCopies(getArity() - callSiteParamCount, Object.class));
    }
    return generalized;
}
Example 9
Source File: ValueConversions.java    From openjdk-8-source with GNU General Public License v2.0 5 votes vote down vote up 
public static MethodHandle identity(Wrapper wrap) {
    EnumMap<Wrapper, MethodHandle> cache = CONSTANT_FUNCTIONS[1];
    MethodHandle mh = cache.get(wrap);
    if (mh != null) {
        return mh;
    }
    // slow path
    MethodType type = MethodType.methodType(wrap.primitiveType());
    if (wrap != Wrapper.VOID)
        type = type.appendParameterTypes(wrap.primitiveType());
    try {
        mh = IMPL_LOOKUP.findStatic(THIS_CLASS, "identity", type);
    } catch (ReflectiveOperationException ex) {
        mh = null;
    }
    if (mh == null && wrap == Wrapper.VOID) {
        mh = EMPTY;  // #(){} : #()void
    }
    if (mh != null) {
        cache.put(wrap, mh);
        return mh;
    }

    if (mh != null) {
        cache.put(wrap, mh);
        return mh;
    }
    throw new IllegalArgumentException("cannot find identity for " + wrap);
}
Example 10
Source File: ValueConversions.java    From openjdk-8 with GNU General Public License v2.0 5 votes vote down vote up 
public static MethodHandle identity(Wrapper wrap) {
    EnumMap<Wrapper, MethodHandle> cache = CONSTANT_FUNCTIONS[1];
    MethodHandle mh = cache.get(wrap);
    if (mh != null) {
        return mh;
    }
    // slow path
    MethodType type = MethodType.methodType(wrap.primitiveType());
    if (wrap != Wrapper.VOID)
        type = type.appendParameterTypes(wrap.primitiveType());
    try {
        mh = IMPL_LOOKUP.findStatic(THIS_CLASS, "identity", type);
    } catch (ReflectiveOperationException ex) {
        mh = null;
    }
    if (mh == null && wrap == Wrapper.VOID) {
        mh = EMPTY;  // #(){} : #()void
    }
    if (mh != null) {
        cache.put(wrap, mh);
        return mh;
    }

    if (mh != null) {
        cache.put(wrap, mh);
        return mh;
    }
    throw new IllegalArgumentException("cannot find identity for " + wrap);
}