Package gnu.kawa.reflect

Class SlotGet

java.lang.Object

gnu.mapping.PropertySet

gnu.mapping.Procedure

gnu.mapping.Procedure2

gnu.kawa.reflect.SlotGet

All Implemented Interfaces:

Inlineable, HasSetter, Named

public class SlotGet
extends Procedure2
implements HasSetter, Inlineable

Field Summary

Fields

Modifier and Type	Field	Description
static SlotGet	field
static SlotGet	slotRef
static SlotGet	staticField

Fields inherited from class gnu.mapping.Procedure2

applyToObject

Fields inherited from class gnu.mapping.Procedure

applyMethodType, applyToConsumerDefault, applyToConsumerMethod, applyToObjectDefault, applyToObjectMethod, compilerKey, compilerXKey, inlineIfConstantSymbol, validateApplyKey, validateXApplyKey

Fields inherited from class gnu.mapping.PropertySet

nameKey

Constructor Summary

Constructors

Constructor	Description
SlotGet(String name, boolean isStatic)
SlotGet(String name, boolean isStatic, Procedure setter)

Method Summary

Modifier and Type	Method	Description
Object	apply2(Object arg1, Object arg2)
void	compile(ApplyExp exp, Compilation comp, Target target)
static Object	field(Object obj, String fname)
Procedure	getSetter()
static Object	getSlotValue(boolean isStatic, Object obj, String name, String fname, String getName, String isName, Language language)	The actual gets of finding the field value.
static Member	lookupMember(ObjectType clas, String name, ClassType caller)	Get a named property - field or member class or 'get' accessor method.
static ApplyExp	makeGetField(Expression value, String fieldName)	Convenience method to make an Expression that gets the value of a field.
void	set2(Object obj, Object name, Object value)
void	setN(Object[] args)
static Object	staticField(Object obj, String fname)

Methods inherited from class gnu.mapping.Procedure2

apply0, apply1, apply3, apply4, applyN, applyToObject, numArgs

Methods inherited from class gnu.mapping.Procedure

applyL, applyToConsumerDefault, applyToObjectDefault, checkArgCount, checkBadCode, getApplyMethod, getApplyToConsumerMethod, getApplyToObjectMethod, getReturnType, getSourceLocation, isSideEffectFree, lookupApplyHandle, maxArgs, maxArgs, minArgs, minArgs, set0, set1, setSetter, setSourceLocation, toString

Methods inherited from class gnu.mapping.PropertySet

getName, getProperty, getSymbol, removeProperty, setName, setProperty, setProperty, setSymbol

Methods inherited from class java.lang.Object

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

Field Detail

field

public static final SlotGet field

slotRef

public static final SlotGet slotRef

staticField

public static final SlotGet staticField

Constructor Detail

SlotGet

public SlotGet(String name,
               boolean isStatic)

SlotGet

public SlotGet(String name,
               boolean isStatic,
               Procedure setter)

Method Detail

field

public static Object field(Object obj,
                           String fname)

staticField

public static Object staticField(Object obj,
                                 String fname)

apply2

public Object apply2(Object arg1,
                     Object arg2)

Specified by:

apply2 in class Procedure2

getSlotValue

public static Object getSlotValue(boolean isStatic,
                                  Object obj,
                                  String name,
                                  String fname,
                                  String getName,
                                  String isName,
                                  Language language)

The actual gets of finding the field value. The compiler emits calls to this method if the field name is literal but the actual field is not known at compile time. This speeds lookup a bit. If fname equals "length" or "class", it is assumed to be interned.

setN

public void setN(Object[] args)

Overrides:

setN in class Procedure

set2

public void set2(Object obj,
                 Object name,
                 Object value)

lookupMember

public static Member lookupMember(ObjectType clas,
                                  String name,
                                  ClassType caller)

Get a named property - field or member class or 'get' accessor method.

Parameters:

clas - the class type declaring the property.

name - the source (unmangled) name of the property.

compile

public void compile(ApplyExp exp,
                    Compilation comp,
                    Target target)

Specified by:

compile in interface Inlineable

getSetter

public Procedure getSetter()

Specified by:

getSetter in interface HasSetter

Overrides:

getSetter in class Procedure

makeGetField

public static ApplyExp makeGetField(Expression value,
                                    String fieldName)

Convenience method to make an Expression that gets the value of a field.

Parameters:

value - evaluates to object that has the named field

fieldName - name of field in value

Returns:

expression that get the name field from value