## org.codehaus.groovy.runtime
Class InvokerHelper

    java.lang.Object
      org.codehaus.groovy.runtime.InvokerHelper

    public class InvokerHelper

extends Object

A static helper class to make bytecode generation easier and act as a facade over the Invoker

Version:
  $Revision: 11920 $
Author:
  James Strachan

Field Summary
`static Object[]` `EMPTY_ARGS`
`protected static Object[]` `EMPTY_ARGUMENTS`
`protected static Class[]` `EMPTY_TYPES`

Constructor Summary
`InvokerHelper()`

Method Summary
`static Object[]` `asArray(Object arguments)` Converts the given object into an array; if its an array then just cast otherwise wrap it in an array
`static Iterator` `asIterator(Object o)`
`static List` `asList(Object value)`
`static void` `assertFailed(Object expression, Object message)`
`static Object[]` `asUnwrappedArray(Object arguments)`
`static Object` `bitwiseNegate(Object value)`
`static List` `createList(Object[] values)`
`static Map` `createMap(Object[] values)`
`static List` `createRange(Object from, Object to, boolean inclusive)`
`static Script` `createScript(Class scriptClass, Binding context)`
`static Tuple` `createTuple(Object[] array)`
`static Matcher` `findRegex(Object left, Object right)` Find the right hand regex within the left hand string and return a matcher.
`protected static String` `format(Object arguments, boolean verbose)`
`static Object` `getAttribute(Object object, String attribute)`
`static Object` `getGroovyObjectProperty(GroovyObject object, String property)`
`static Invoker` `getInstance()` Deprecated.
`static MetaClass` `getMetaClass(Class cls)`
`static MetaClass` `getMetaClass(Object object)`
`static MetaClassRegistry` `getMetaRegistry()`
`static Closure` `getMethodPointer(Object object, String methodName)` Returns the method pointer for the given object name
`static Object` `getProperty(Object object, String property)`
`static Object` `getPropertySafe(Object object, String property)`
`static String` `getVersion()`
`static String` `inspect(Object self)`
`static Object` `invokeClosure(Object closure, Object arguments)`
`static Object` `invokeConstructorOf(Class type, Object arguments)`
`static Object` `invokeConstructorOf(String klass, Object arguments)`
`static Object` `invokeMethod(Object object, String methodName, Object arguments)` Invokes the given method on the object.
`static Object` `invokeMethodSafe(Object object, String methodName, Object arguments)`
`static Object` `invokeNoArgumentsConstructorOf(Class type)`
`static Object` `invokeNoArgumentsMethod(Object object, String methodName)` Deprecated.
`static Object` `invokeStaticMethod(Class type, String method, Object arguments)`
`static Object` `invokeStaticMethod(String klass, String methodName, Object arguments)`
`static Object` `invokeStaticNoArgumentsMethod(Class type, String methodName)`
`static Object` `invokeSuperMethod(Object object, String methodName, Object arguments)`
`static boolean` `matchRegex(Object left, Object right)` Find the right hand regex within the left hand string and return a matcher.
`static void` `removeClass(Class clazz)`
`static Object` `runScript(Class scriptClass, String[] args)`
`static void` `setAttribute(Object object, String attribute, Object newValue)`
`static void` `setGroovyObjectProperty(Object newValue, GroovyObject object, String property)` This is so we don't have to reorder the stack when we call this method.
`static void` `setProperties(Object object, Map map)` Sets the properties on the given object
`static void` `setProperty(Object object, String property, Object newValue)`
`static void` `setProperty2(Object newValue, Object object, String property)` This is so we don't have to reorder the stack when we call this method.
`static void` `setPropertySafe2(Object newValue, Object object, String property)` This is so we don't have to reorder the stack when we call this method.
`static SpreadMap` `spreadMap(Object value)`
`static String` `toArrayString(Object[] arguments)` A helper method to return the string representation of an arrray of objects with brace boundaries "{" and "}".
`static String` `toListString(Collection arg)` A helper method to return the string representation of a list with bracket boundaries "[" and "]".
`static String` `toMapString(Map arg)` A helper method to return the string representation of a map with bracket boundaries "[" and "]".
`static String` `toString(Object arguments)`
`static String` `toTypeString(Object[] arguments)` A helper method to format the arguments types as a comma-separated list
`static Object` `unaryMinus(Object value)`
`static Object` `unaryPlus(Object value)`
`static void` `write(Writer out, Object object)` Writes the given object to the given stream

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### EMPTY_ARGS

    public static final Object[] EMPTY_ARGS

### EMPTY_ARGUMENTS

    protected static final Object[] EMPTY_ARGUMENTS

### EMPTY_TYPES

    protected static final Class[] EMPTY_TYPES

Constructor Detail

### InvokerHelper

    public InvokerHelper()

Method Detail

### getInstance

    public static Invoker getInstance()

  Deprecated.

  This method should no longer be used.

  Returns:
    an Invoker

### invokeNoArgumentsMethod

    public static Object invokeNoArgumentsMethod(Object object,
                                                 String methodName)

  Deprecated.

### removeClass

    public static void removeClass(Class clazz)

### invokeMethodSafe

    public static Object invokeMethodSafe(Object object,
                                          String methodName,
                                          Object arguments)

### invokeStaticMethod

    public static Object invokeStaticMethod(String klass,
                                            String methodName,
                                            Object arguments)
                                     throws ClassNotFoundException

  Throws:
    `ClassNotFoundException`

### invokeStaticNoArgumentsMethod

    public static Object invokeStaticNoArgumentsMethod(Class type,
                                                       String methodName)

### invokeConstructorOf

    public static Object invokeConstructorOf(String klass,
                                             Object arguments)
                                      throws ClassNotFoundException

  Throws:
    `ClassNotFoundException`

### invokeNoArgumentsConstructorOf

    public static Object invokeNoArgumentsConstructorOf(Class type)

### invokeClosure

    public static Object invokeClosure(Object closure,
                                       Object arguments)

### asList

    public static List asList(Object value)

### toString

    public static String toString(Object arguments)

### inspect

    public static String inspect(Object self)

### getAttribute

    public static Object getAttribute(Object object,
                                      String attribute)

### setAttribute

    public static void setAttribute(Object object,
                                    String attribute,
                                    Object newValue)

### getProperty

    public static Object getProperty(Object object,
                                     String property)

### getPropertySafe

    public static Object getPropertySafe(Object object,
                                         String property)

### setProperty

    public static void setProperty(Object object,
                                   String property,
                                   Object newValue)

### setProperty2

    public static void setProperty2(Object newValue,
                                    Object object,
                                    String property)

  This is so we don't have to reorder the stack when we call this method. At some point a better name might be in order.

### setGroovyObjectProperty

    public static void setGroovyObjectProperty(Object newValue,
                                               GroovyObject object,
                                               String property)

  This is so we don't have to reorder the stack when we call this method. At some point a better name might be in order.

### getGroovyObjectProperty

    public static Object getGroovyObjectProperty(GroovyObject object,
                                                 String property)

### setPropertySafe2

    public static void setPropertySafe2(Object newValue,
                                        Object object,
                                        String property)

  This is so we don't have to reorder the stack when we call this method. At some point a better name might be in order.

### getMethodPointer

    public static Closure getMethodPointer(Object object,
                                           String methodName)

  Returns the method pointer for the given object name

### unaryMinus

    public static Object unaryMinus(Object value)

### unaryPlus

    public static Object unaryPlus(Object value)

### findRegex

    public static Matcher findRegex(Object left,
                                    Object right)

  Find the right hand regex within the left hand string and return a matcher.

  Parameters:
    `left` - string to compare
    `right` - regular expression to compare the string to

### matchRegex

    public static boolean matchRegex(Object left,
                                     Object right)

  Find the right hand regex within the left hand string and return a matcher.

  Parameters:
    `left` - string to compare
    `right` - regular expression to compare the string to

### createTuple

    public static Tuple createTuple(Object[] array)

### spreadMap

    public static SpreadMap spreadMap(Object value)

### createList

    public static List createList(Object[] values)

### createMap

    public static Map createMap(Object[] values)

### assertFailed

    public static void assertFailed(Object expression,
                                    Object message)

### runScript

    public static Object runScript(Class scriptClass,
                                   String[] args)

### createScript

    public static Script createScript(Class scriptClass,
                                      Binding context)

### setProperties

    public static void setProperties(Object object,
                                     Map map)

  Sets the properties on the given object

### getVersion

    public static String getVersion()

### write

    public static void write(Writer out,
                             Object object)
                      throws IOException

  Writes the given object to the given stream

  Throws:
    `IOException`

### asIterator

    public static Iterator asIterator(Object o)

### format

    protected static String format(Object arguments,
                                   boolean verbose)

### toTypeString

    public static String toTypeString(Object[] arguments)

  A helper method to format the arguments types as a comma-separated list

### toMapString

    public static String toMapString(Map arg)

  A helper method to return the string representation of a map with bracket boundaries "[" and "]".

### toListString

    public static String toListString(Collection arg)

  A helper method to return the string representation of a list with bracket boundaries "[" and "]".

### toArrayString

    public static String toArrayString(Object[] arguments)

  A helper method to return the string representation of an arrray of objects with brace boundaries "{" and "}".

### createRange

    public static List createRange(Object from,
                                   Object to,
                                   boolean inclusive)

### bitwiseNegate

    public static Object bitwiseNegate(Object value)

### getMetaRegistry

    public static MetaClassRegistry getMetaRegistry()

### getMetaClass

    public static MetaClass getMetaClass(Object object)

### getMetaClass

    public static MetaClass getMetaClass(Class cls)

### invokeMethod

    public static Object invokeMethod(Object object,
                                      String methodName,
                                      Object arguments)

  Invokes the given method on the object.

### invokeSuperMethod

    public static Object invokeSuperMethod(Object object,
                                           String methodName,
                                           Object arguments)

### invokeStaticMethod

    public static Object invokeStaticMethod(Class type,
                                            String method,
                                            Object arguments)

### invokeConstructorOf

    public static Object invokeConstructorOf(Class type,
                                             Object arguments)

### asArray

    public static Object[] asArray(Object arguments)

  Converts the given object into an array; if its an array then just cast otherwise wrap it in an array

### asUnwrappedArray

    public static Object[] asUnwrappedArray(Object arguments)

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