gnu.kawa.reflect
Class SlotGet

java.lang.Object
  gnu.mapping.PropertySet
      gnu.mapping.Procedure
          gnu.mapping.Procedure2
              gnu.kawa.reflect.SlotGet

All Implemented Interfaces:

CanInline, Inlineable, HasSetter, Named

public class SlotGet
extends Procedure2
implements HasSetter, CanInline, Inlineable

Field Summary

static SlotGet	field
static SlotGet	slotRef
static SlotGet	staticField

Constructor Summary

SlotGet(java.lang.String name, boolean isStatic)

SlotGet(java.lang.String name, boolean isStatic, Procedure setter)

Method Summary

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

Methods inherited from class gnu.mapping.Procedure2

apply0, apply1, apply3, apply4, applyN, numArgs

Methods inherited from class gnu.mapping.Procedure

apply, apply, check0, check1, check2, check3, check4, checkArgCount, checkN, getSourceLocation, match0, match1, match2, match3, match4, matchN, maxArgs, 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(java.lang.String name,
               boolean isStatic)

SlotGet

public SlotGet(java.lang.String name,
               boolean isStatic,
               Procedure setter)

Method Detail

field

public static java.lang.Object field(java.lang.Object obj,
                                     java.lang.String fname)

staticField

public static java.lang.Object staticField(java.lang.Object obj,
                                           java.lang.String fname)

apply2

public java.lang.Object apply2(java.lang.Object arg1,
                               java.lang.Object arg2)

Specified by:

apply2 in class Procedure2

getSlotValue

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

The actual gets of finding the field value. The compiler emits calls to this method if the field name is literals but the actual field is not known at compile time. This speeds lookup a bit.

setN

public void setN(java.lang.Object[] args)

Overrides:

setN in class Procedure

set2

public void set2(java.lang.Object obj,
                 java.lang.Object name,
                 java.lang.Object value)

lookupMember

public static Member lookupMember(ClassType clas,
                                  java.lang.String name,
                                  ClassType caller)

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

Parameters:

clas - the class type declaring the property.

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

inline

public Expression inline(ApplyExp exp,
                         ExpWalker walker)

Description copied from interface: CanInline

Inline an application of this Procedure and return result. Can return original expression.

Specified by:

inline in interface CanInline

compile

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

Specified by:

compile in interface Inlineable

getReturnType

public Type getReturnType(Expression[] args)

Specified by:

getReturnType 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,
                                    java.lang.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