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Groovy: A powerful, dynamic language for the JVM
/*
* Copyright 2003-2012 the original author or authors.
*
* 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.codehaus.groovy.runtime;
import groovy.lang.*;
import org.codehaus.groovy.runtime.metaclass.MissingMethodExceptionNoStack;
import org.codehaus.groovy.runtime.metaclass.MissingMethodExecutionFailed;
import org.codehaus.groovy.runtime.metaclass.MissingPropertyExceptionNoStack;
import org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation;
import org.codehaus.groovy.runtime.wrappers.GroovyObjectWrapper;
import org.codehaus.groovy.runtime.wrappers.PojoWrapper;
import org.codehaus.groovy.runtime.wrappers.Wrapper;
import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* A static helper class to interface bytecode and runtime
*
* @author Jochen Theodorou
* @version $Revision$
*/
public class ScriptBytecodeAdapter {
public static final Object[] EMPTY_ARGS = {};
private static final Integer ZERO = Integer.valueOf(0);
private static final Integer MINUS_ONE = Integer.valueOf(-1);
private static final Integer ONE = Integer.valueOf(1);
// --------------------------------------------------------
// exception handling
// --------------------------------------------------------
public static Throwable unwrap(GroovyRuntimeException gre) {
if (gre instanceof MissingPropertyExceptionNoStack) {
MissingPropertyExceptionNoStack noStack = (MissingPropertyExceptionNoStack) gre;
return new MissingPropertyException(noStack.getProperty(), noStack.getType());
}
if (gre instanceof MissingMethodExceptionNoStack) {
MissingMethodExceptionNoStack noStack = (MissingMethodExceptionNoStack) gre;
return new MissingMethodException(noStack.getMethod(), noStack.getType(), noStack.getArguments(), noStack.isStatic());
}
Throwable th = gre;
if (th.getCause() != null && th.getCause() != gre) th = th.getCause();
if (th != gre && (th instanceof GroovyRuntimeException)) return unwrap((GroovyRuntimeException) th);
return th;
}
// --------------------------------------------------------
// methods for this
// --------------------------------------------------------
public static Object invokeMethodOnCurrentN(Class senderClass, GroovyObject receiver, String messageName, Object[] messageArguments) throws Throwable {
Object result = null;
boolean intercepting = receiver instanceof GroovyInterceptable;
try {
try {
// if it's a pure interceptable object (even intercepting toString(), clone(), ...)
if (intercepting) {
result = receiver.invokeMethod(messageName, messageArguments);
}
//else if there's a statically typed method or a GDK method
else {
result = receiver.getMetaClass().invokeMethod(senderClass, receiver, messageName, messageArguments, false, true);
}
} catch (MissingMethodException e) {
if (e instanceof MissingMethodExecutionFailed) {
throw (MissingMethodException)e.getCause();
} else if (!intercepting && receiver.getClass() == e.getType() && e.getMethod().equals(messageName)) {
// in case there's nothing else, invoke the object's own invokeMethod()
result = receiver.invokeMethod(messageName, messageArguments);
} else {
throw e;
}
}
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
return result;
}
public static Object invokeMethodOnCurrentNSafe(Class senderClass, GroovyObject receiver, String messageName, Object[] messageArguments) throws Throwable {
return invokeMethodOnCurrentN(senderClass, receiver, messageName, messageArguments);
}
public static Object invokeMethodOnCurrentNSpreadSafe(Class senderClass, GroovyObject receiver, String messageName, Object[] messageArguments) throws Throwable {
List answer = new ArrayList();
for (Iterator it = InvokerHelper.asIterator(receiver); it.hasNext();) {
answer.add(invokeMethodNSafe(senderClass, it.next(), messageName, messageArguments));
}
return answer;
}
public static Object invokeMethodOnCurrent0(Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
return invokeMethodOnCurrentN(senderClass, receiver, messageName, EMPTY_ARGS);
}
public static Object invokeMethodOnCurrent0Safe(Class senderClass, GroovyObject receiver, String messageName, Object[] messageArguments) throws Throwable {
return invokeMethodOnCurrentNSafe(senderClass, receiver, messageName, EMPTY_ARGS);
}
public static Object invokeMethodOnCurrent0SpreadSafe(Class senderClass, GroovyObject receiver, String messageName, Object[] messageArguments) throws Throwable {
return invokeMethodOnCurrentNSpreadSafe(senderClass, receiver, messageName, EMPTY_ARGS);
}
// --------------------------------------------------------
// methods for super
// --------------------------------------------------------
public static Object invokeMethodOnSuperN(Class senderClass, GroovyObject receiver, String messageName, Object[] messageArguments) throws Throwable {
MetaClass metaClass = receiver.getMetaClass();
// ignore interception and missing method fallback
Object result = null;
try {
result = metaClass.invokeMethod(senderClass, receiver, messageName, messageArguments, true, true);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
return result;
}
public static Object invokeMethodOnSuperNSafe(Class senderClass, GroovyObject receiver, String messageName, Object[] messageArguments) throws Throwable {
return invokeMethodOnSuperN(senderClass, receiver, messageName, messageArguments);
}
public static Object invokeMethodOnSuperNSpreadSafe(Class senderClass, GroovyObject receiver, String messageName, Object[] messageArguments) throws Throwable {
List answer = new ArrayList();
for (Iterator it = InvokerHelper.asIterator(receiver); it.hasNext();) {
answer.add(invokeMethodNSafe(senderClass, it.next(), messageName, messageArguments));
}
return answer;
}
public static Object invokeMethodOnSuper0(Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
return invokeMethodOnSuperN(senderClass, receiver, messageName, EMPTY_ARGS);
}
public static Object invokeMethodOnSuper0Safe(Class senderClass, GroovyObject receiver, String messageName, Object[] messageArguments) throws Throwable {
return invokeMethodOnSuperNSafe(senderClass, receiver, messageName, EMPTY_ARGS);
}
public static Object invokeMethodOnSuper0SpreadSafe(Class senderClass, GroovyObject receiver, String messageName, Object[] messageArguments) throws Throwable {
return invokeMethodOnSuperNSpreadSafe(senderClass, receiver, messageName, EMPTY_ARGS);
}
// --------------------------------------------------------
// normal method invocation
// --------------------------------------------------------
public static Object invokeMethodN(Class senderClass, Object receiver, String messageName, Object[] messageArguments) throws Throwable {
try {
return InvokerHelper.invokeMethod(receiver, messageName, messageArguments);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static Object invokeMethodNSafe(Class senderClass, Object receiver, String messageName, Object[] messageArguments) throws Throwable {
if (receiver == null) return null;
return invokeMethodN(senderClass, receiver, messageName, messageArguments);
}
public static Object invokeMethodNSpreadSafe(Class senderClass, Object receiver, String messageName, Object[] messageArguments) throws Throwable {
if (receiver == null) return null;
List answer = new ArrayList();
for (Iterator it = InvokerHelper.asIterator(receiver); it.hasNext();) {
answer.add(invokeMethodNSafe(senderClass, it.next(), messageName, messageArguments));
}
return answer;
}
public static Object invokeMethod0(Class senderClass, Object receiver, String messageName) throws Throwable {
return invokeMethodN(senderClass, receiver, messageName, EMPTY_ARGS);
}
public static Object invokeMethod0Safe(Class senderClass, Object receiver, String messageName) throws Throwable {
if (receiver == null) return null;
return invokeMethodNSafe(senderClass, receiver, messageName, EMPTY_ARGS);
}
public static Object invokeMethod0SpreadSafe(Class senderClass, Object receiver, String messageName) throws Throwable {
return invokeMethodNSpreadSafe(senderClass, receiver, messageName, EMPTY_ARGS);
}
// --------------------------------------------------------
// static normal method invocation
// --------------------------------------------------------
public static Object invokeStaticMethodN(Class senderClass, Class receiver, String messageName, Object[] messageArguments) throws Throwable {
try {
return InvokerHelper.invokeStaticMethod(receiver, messageName, messageArguments);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static Object invokeStaticMethod0(Class senderClass, Class receiver, String messageName) throws Throwable {
return invokeStaticMethodN(senderClass, receiver, messageName, EMPTY_ARGS);
}
// --------------------------------------------------------
// normal constructor invocation (via new)
// --------------------------------------------------------
public static Object invokeNewN(Class senderClass, Class receiver, Object arguments) throws Throwable {
try {
return InvokerHelper.invokeConstructorOf(receiver, arguments);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static Object invokeNew0(Class senderClass, Class receiver) throws Throwable {
return invokeNewN(senderClass, receiver, EMPTY_ARGS);
}
// --------------------------------------------------------
// special constructor invocation (via this/super)
// --------------------------------------------------------
public static int selectConstructorAndTransformArguments(Object[] arguments, int numberOfConstructors, Class which) throws Throwable {
MetaClass metaClass = GroovySystem.getMetaClassRegistry().getMetaClass(which);
try {
return metaClass.selectConstructorAndTransformArguments(numberOfConstructors, arguments);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
// --------------------------------------------------------
// field handling super: get
// --------------------------------------------------------
public static Object getFieldOnSuper(Class senderClass, Object receiver, String messageName) throws Throwable {
try {
if (receiver instanceof Class) {
return InvokerHelper.getAttribute(receiver, messageName);
} else {
MetaClass mc = ((GroovyObject) receiver).getMetaClass();
return mc.getAttribute(senderClass, receiver, messageName, true);
}
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static Object getFieldOnSuperSafe(Class senderClass, Object receiver, String messageName) throws Throwable {
return getFieldOnSuper(senderClass, receiver, messageName);
}
public static Object getFieldOnSuperSpreadSafe(Class senderClass, Object receiver, String messageName) throws Throwable {
List answer = new ArrayList();
for (Iterator it = InvokerHelper.asIterator(receiver); it.hasNext();) {
answer.add(getFieldOnSuper(senderClass, it.next(), messageName));
}
return answer;
}
// --------------------------------------------------------
// field handling super: set
// --------------------------------------------------------
public static void setFieldOnSuper(Object messageArgument, Class senderClass, Object receiver, String messageName) throws Throwable {
try {
if (receiver instanceof Class) {
InvokerHelper.setAttribute(receiver, messageName, messageArgument);
} else {
MetaClass mc = ((GroovyObject) receiver).getMetaClass();
mc.setAttribute(senderClass, receiver, messageName, messageArgument, true, true);
}
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static void setFieldOnSuperSafe(Object messageArgument, Class senderClass, Object receiver, String messageName) throws Throwable {
setFieldOnSuper(messageArgument, senderClass, receiver, messageName);
}
public static void setFieldOnSuperSpreadSafe(Object messageArgument, Class senderClass, Object receiver, String messageName) throws Throwable {
for (Iterator it = InvokerHelper.asIterator(receiver); it.hasNext();) {
setFieldOnSuper(messageArgument, senderClass, it.next(), messageName);
}
}
// --------------------------------------------------------
// normal field handling : get
// --------------------------------------------------------
public static Object getField(Class senderClass, Object receiver, String messageName) throws Throwable {
try {
return InvokerHelper.getAttribute(receiver, messageName);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static Object getFieldSafe(Class senderClass, Object receiver, String messageName) throws Throwable {
if (receiver == null) return null;
return getField(senderClass, receiver, messageName);
}
public static Object getFieldSpreadSafe(Class senderClass, Object receiver, String messageName) throws Throwable {
if (receiver == null) return null;
List answer = new ArrayList();
for (Iterator it = InvokerHelper.asIterator(receiver); it.hasNext();) {
answer.add(getFieldSafe(senderClass, it.next(), messageName));
}
return answer;
}
// --------------------------------------------------------
// normal field handling : set
// --------------------------------------------------------
public static void setField(Object messageArgument, Class senderClass, Object receiver, String messageName) throws Throwable {
try {
InvokerHelper.setAttribute(receiver, messageName, messageArgument);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static void setFieldSafe(Object messageArgument, Class senderClass, Object receiver, String messageName) throws Throwable {
if (receiver == null) return;
setField(messageArgument, senderClass, receiver, messageName);
}
public static void setFieldSpreadSafe(Object messageArgument, Class senderClass, Object receiver, String messageName) throws Throwable {
if (receiver == null) return;
for (Iterator it = InvokerHelper.asIterator(receiver); it.hasNext();) {
setFieldSafe(messageArgument, senderClass, it.next(), messageName);
}
}
// --------------------------------------------------------
// normal GroovyObject field handling : get
// --------------------------------------------------------
public static Object getGroovyObjectField(Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
try {
return receiver.getMetaClass().getAttribute(receiver, messageName);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static Object getGroovyObjectFieldSafe(Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
if (receiver == null) return null;
try {
return receiver.getMetaClass().getAttribute(receiver, messageName);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static Object getGroovyObjectFieldSpreadSafe(Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
if (receiver == null) return null;
List answer = new ArrayList();
for (Iterator it = InvokerHelper.asIterator(receiver); it.hasNext();) {
answer.add(getFieldSafe(senderClass, it.next(), messageName));
}
return answer;
}
// --------------------------------------------------------
// normal field handling : set
// --------------------------------------------------------
public static void setGroovyObjectField(Object messageArgument, Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
try {
receiver.getMetaClass().setAttribute(receiver, messageName, messageArgument);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static void setGroovyObjectFieldSafe(Object messageArgument, Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
if (receiver == null) return;
try {
receiver.getMetaClass().setAttribute(receiver, messageName, messageArgument);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static void setGroovyObjectFieldSpreadSafe(Object messageArgument, Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
if (receiver == null) return;
for (Iterator it = InvokerHelper.asIterator(receiver); it.hasNext();) {
setFieldSafe(messageArgument, senderClass, it.next(), messageName);
}
}
// --------------------------------------------------------
// Property handling super: get
// --------------------------------------------------------
public static Object getPropertyOnSuper(Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
return invokeMethodOnSuperN(senderClass, receiver, "getProperty", new Object[]{messageName});
}
public static Object getPropertyOnSuperSafe(Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
return getPropertyOnSuper(senderClass, receiver, messageName);
}
public static Object getPropertyOnSuperSpreadSafe(Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
List answer = new ArrayList();
for (Iterator it = InvokerHelper.asIterator(receiver); it.hasNext();) {
answer.add(getPropertySafe(senderClass, it.next(), messageName));
}
return answer;
}
// --------------------------------------------------------
// Property handling super: set
// --------------------------------------------------------
public static void setPropertyOnSuper(Object messageArgument, Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
try {
InvokerHelper.setAttribute(receiver, messageName, messageArgument);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static void setPropertyOnSuperSafe(Object messageArgument, Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
setPropertyOnSuper(messageArgument, senderClass, receiver, messageName);
}
public static void setPropertyOnSuperSpreadSafe(Object messageArgument, Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
for (Iterator it = InvokerHelper.asIterator(receiver); it.hasNext();) {
setPropertySafe(messageArgument, senderClass, it.next(), messageName);
}
}
// --------------------------------------------------------
// normal Property handling : get
// --------------------------------------------------------
public static Object getProperty(Class senderClass, Object receiver, String messageName) throws Throwable {
try {
return InvokerHelper.getProperty(receiver, messageName);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static Object getPropertySafe(Class senderClass, Object receiver, String messageName) throws Throwable {
if (receiver == null) return null;
return getProperty(senderClass, receiver, messageName);
}
public static Object getPropertySpreadSafe(Class senderClass, Object receiver, String messageName) throws Throwable {
if (receiver == null) return null;
List answer = new ArrayList();
for (Iterator it = InvokerHelper.asIterator(receiver); it.hasNext();) {
answer.add(getPropertySafe(senderClass, it.next(), messageName));
}
return answer;
}
// --------------------------------------------------------
// normal Property handling : set
// --------------------------------------------------------
public static void setProperty(Object messageArgument, Class senderClass, Object receiver, String messageName) throws Throwable {
try {
if (receiver==null) receiver=NullObject.getNullObject();
InvokerHelper.setProperty(receiver, messageName, messageArgument);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static void setPropertySafe(Object messageArgument, Class senderClass, Object receiver, String messageName) throws Throwable {
if (receiver == null) return;
setProperty(messageArgument, senderClass, receiver, messageName);
}
public static void setPropertySpreadSafe(Object messageArgument, Class senderClass, Object receiver, String messageName) throws Throwable {
if (receiver == null) return;
for (Iterator it = InvokerHelper.asIterator(receiver); it.hasNext();) {
setPropertySafe(messageArgument, senderClass, it.next(), messageName);
}
}
// --------------------------------------------------------
// normal GroovyObject Property handling : get
// --------------------------------------------------------
public static Object getGroovyObjectProperty(Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
return receiver.getProperty(messageName);
}
public static Object getGroovyObjectPropertySafe(Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
if (receiver == null) return null;
return getGroovyObjectProperty(senderClass, receiver, messageName);
}
public static Object getGroovyObjectPropertySpreadSafe(Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
if (receiver == null) return null;
List answer = new ArrayList();
for (Iterator it = InvokerHelper.asIterator(receiver); it.hasNext();) {
answer.add(getPropertySafe(senderClass, it.next(), messageName));
}
return answer;
}
// --------------------------------------------------------
// normal GroovyObject Property handling : set
// --------------------------------------------------------
public static void setGroovyObjectProperty(Object messageArgument, Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
try {
receiver.setProperty(messageName, messageArgument);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static void setGroovyObjectPropertySafe(Object messageArgument, Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
if (receiver == null) return;
receiver.setProperty(messageName, messageArgument);
}
public static void setGroovyObjectPropertySpreadSafe(Object messageArgument, Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
if (receiver == null) return;
for (Iterator it = InvokerHelper.asIterator(receiver); it.hasNext();) {
setPropertySafe(messageArgument, senderClass, it.next(), messageName);
}
}
// **********************************************************************************
// **********************************************************************************
// ************** methods not covered by the new MOP **************
// **********************************************************************************
// **********************************************************************************
// --------------------------------------------------------
// Closures
// --------------------------------------------------------
/**
* Returns the method pointer for the given object name
*
* @param object the object containing the method
* @param methodName the name of the method of interest
* @return the resulting Closure
*/
public static Closure getMethodPointer(Object object, String methodName) {
return InvokerHelper.getMethodPointer(object, methodName);
}
// TODO: set sender class
public static Object invokeClosure(Object closure, Object[] arguments) throws Throwable {
return invokeMethodN(closure.getClass(), closure, "call", arguments);
}
// --------------------------------------------------------
// type conversion
// --------------------------------------------------------
/**
* Provides a hook for type coercion of the given object to the required type
*
* @param type of object to convert the given object to
* @param object the object to be converted
* @return the original object or a new converted value
* @throws Throwable if the coercion fails
*/
public static Object asType(Object object, Class type) throws Throwable {
if (object == null) object = NullObject.getNullObject();
return invokeMethodN(object.getClass(), object, "asType", new Object[]{type});
}
/**
* Provides a hook for type casting of the given object to the required type
*
* @param type of object to convert the given object to
* @param object the object to be converted
* @return the original object or a new converted value
* @throws Throwable if the type casting fails
*/
public static Object castToType(Object object, Class type) throws Throwable {
return DefaultTypeTransformation.castToType(object, type);
}
public static Tuple createTuple(Object[] array) {
return new Tuple(array);
}
public static List createList(Object[] values) {
return InvokerHelper.createList(values);
}
public static Wrapper createPojoWrapper(Object val, Class clazz) {
return new PojoWrapper(val, clazz);
}
public static Wrapper createGroovyObjectWrapper(GroovyObject val, Class clazz) {
return new GroovyObjectWrapper(val, clazz);
}
public static Map createMap(Object[] values) {
return InvokerHelper.createMap(values);
}
//TODO: refactor
public static List createRange(Object from, Object to, boolean inclusive) throws Throwable {
if (from instanceof Integer && to instanceof Integer) {
int ito = (Integer) to;
int ifrom = (Integer) from;
if (!inclusive) {
if (ifrom == ito) {
return new EmptyRange((Comparable) from);
}
if (ifrom > ito) {
ito++;
} else {
ito--;
}
}
return new IntRange(ifrom, ito);
}
if (!inclusive) {
if (compareEqual(from, to)) {
return new EmptyRange((Comparable) from);
}
if (compareGreaterThan(from, to)) {
to = invokeMethod0(ScriptBytecodeAdapter.class, to, "next");
} else {
to = invokeMethod0(ScriptBytecodeAdapter.class, to, "previous");
}
}
return new ObjectRange((Comparable) from, (Comparable) to);
}
//assert
public static void assertFailed(Object expression, Object message) {
InvokerHelper.assertFailed(expression, message);
}
//isCase
//TODO: set sender class
public static boolean isCase(Object switchValue, Object caseExpression) throws Throwable {
if (caseExpression == null) {
return switchValue == null;
}
return DefaultTypeTransformation.castToBoolean(invokeMethodN(caseExpression.getClass(), caseExpression, "isCase", new Object[]{switchValue}));
}
//compare
public static boolean compareIdentical(Object left, Object right) {
return left == right;
}
public static boolean compareNotIdentical(Object left, Object right) {
return left != right;
}
public static boolean compareEqual(Object left, Object right) {
return DefaultTypeTransformation.compareEqual(left, right);
}
public static boolean compareNotEqual(Object left, Object right) {
return !compareEqual(left, right);
}
public static Integer compareTo(Object left, Object right) {
int answer = DefaultTypeTransformation.compareTo(left, right);
if (answer == 0) {
return ZERO;
} else {
return answer > 0 ? ONE : MINUS_ONE;
}
}
public static boolean compareLessThan(Object left, Object right) {
return compareTo(left, right).intValue() < 0;
}
public static boolean compareLessThanEqual(Object left, Object right) {
return compareTo(left, right).intValue() <= 0;
}
public static boolean compareGreaterThan(Object left, Object right) {
return compareTo(left, right).intValue() > 0;
}
public static boolean compareGreaterThanEqual(Object left, Object right) {
return compareTo(left, right).intValue() >= 0;
}
//regexpr
public static Pattern regexPattern(Object regex) {
return StringGroovyMethods.bitwiseNegate(regex.toString());
}
public static Matcher findRegex(Object left, Object right) throws Throwable {
return InvokerHelper.findRegex(left, right);
}
public static boolean matchRegex(Object left, Object right) {
return InvokerHelper.matchRegex(left, right);
}
//spread expressions
public static Object[] despreadList(Object[] args, Object[] spreads, int[] positions) {
List ret = new ArrayList();
int argsPos = 0;
int spreadPos = 0;
for (int pos = 0; pos < positions.length; pos++) {
for (; argsPos < positions[pos]; argsPos++) {
ret.add(args[argsPos]);
}
Object value = spreads[spreadPos];
if (value == null) {
ret.add(null);
} else if (value instanceof List) {
ret.addAll((List) value);
} else if (value.getClass().isArray()) {
ret.addAll(DefaultTypeTransformation.primitiveArrayToList(value));
} else {
throw new IllegalArgumentException("cannot spread the type " + value.getClass().getName() + " with value " + value);
}
spreadPos++;
}
for (; argsPos < args.length; argsPos++) {
ret.add(args[argsPos]);
}
return ret.toArray();
}
public static Object spreadMap(Object value) {
return InvokerHelper.spreadMap(value);
}
public static Object unaryMinus(Object value) throws Throwable {
return InvokerHelper.unaryMinus(value);
}
public static Object unaryPlus(Object value) throws Throwable {
try {
return InvokerHelper.unaryPlus(value);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static Object bitwiseNegate(Object value) throws Throwable {
try {
return InvokerHelper.bitwiseNegate(value);
} catch (GroovyRuntimeException gre) {
throw unwrap(gre);
}
}
public static MetaClass initMetaClass(Object object) {
return InvokerHelper.getMetaClass(object.getClass());
}
}