Package gw.lang.parser.coercers

Class FunctionFromInterfaceCoercer

java.lang.Object

gw.lang.parser.coercers.BaseCoercer

gw.lang.parser.coercers.FunctionFromInterfaceCoercer

All Implemented Interfaces:

ICoercer

public class FunctionFromInterfaceCoercer
extends BaseCoercer

Field Summary

Fields

Modifier and Type	Field	Description
private static FunctionFromInterfaceCoercer	_instance

Fields inherited from interface gw.lang.parser.ICoercer

MAX_PRIORITY

Constructor Summary

Constructors

Modifier	Constructor	Description
private	FunctionFromInterfaceCoercer()

Method Summary

Modifier and Type	Method	Description
static boolean	areTypesCompatible(IFunctionType functionType, IType interfaceType)
java.lang.Object	coerceValue(IType typeToCoerceTo, java.lang.Object value)
static java.lang.Object	doCoercion(java.lang.Class classToCoerceTo, java.lang.Class ifaceClass, java.lang.Object value)
private static java.lang.reflect.Method	findSingleAbstractMethod(java.lang.Class ifaceClass)
int	getPriority(IType to, IType from)
boolean	handlesNull()
static FunctionFromInterfaceCoercer	instance()
boolean	isExplicitCoercion()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_instance

private static FunctionFromInterfaceCoercer _instance

Constructor Detail

FunctionFromInterfaceCoercer

private FunctionFromInterfaceCoercer()

Method Detail

instance

public static FunctionFromInterfaceCoercer instance()

handlesNull

public boolean handlesNull()

Returns:

true if this coercer knows how to handle the null value.

coerceValue

public java.lang.Object coerceValue(IType typeToCoerceTo,
                                    java.lang.Object value)

doCoercion

public static java.lang.Object doCoercion(java.lang.Class classToCoerceTo,
                                          java.lang.Class ifaceClass,
                                          java.lang.Object value)

findSingleAbstractMethod

private static java.lang.reflect.Method findSingleAbstractMethod(java.lang.Class ifaceClass)

isExplicitCoercion

public boolean isExplicitCoercion()

areTypesCompatible

public static boolean areTypesCompatible(IFunctionType functionType,
                                         IType interfaceType)

getPriority

public int getPriority(IType to,
                       IType from)

Returns:

a value between 0 and MAX_PRIORITY, inclusive that indicates the priority of this coercer when resolving overloaded methods. Typically a coercer should return 0, but coercers that have a high affinity between the target and coerced type, such as primitives, can have higher priorities.