leola.vm.types

Class LeoScopedObject

java.lang.Object

leola.vm.types.LeoObject

leola.vm.types.LeoOuterObject

leola.vm.types.LeoScopedObject

All Implemented Interfaces:

Comparable<LeoObject>

Direct Known Subclasses:

LeoClass, LeoNamespace

public abstract class LeoScopedObject
extends LeoOuterObject

An object which contains code within it that can be referenced outside of the scope (namespaces, classes).

Author:

Tony

Nested Class Summary

Nested classes/interfaces inherited from class leola.vm.types.LeoObject

LeoObject.LeoType

Field Summary

Fields inherited from class leola.vm.types.LeoOuterObject

NOOUTERS, outers

Fields inherited from class leola.vm.types.LeoObject

ADD, BAND, BNOT, BOR, BSL, BSR, DIV, EQ, FALSE, GT, GTE, INDEX, LT, LTE, MOD, MUL, NEG, NEQ, NULL, REQ, SINDEX, SUB, toString, TRUE, XOR

Constructor Summary

Constructors

Constructor and Description
LeoScopedObject(LeoObject.LeoType type, Scope scope, int numberOfOuters)

Method Summary

Modifier and Type	Method and Description
boolean	$eq(LeoObject other) Determines if it equals another object.
LeoNativeFunction	addMethod(Method method) Adds the Java method into this LeoScopedObject
LeoNativeFunction	addMethod(Object jObject, Method method) Adds the Java method into this LeoScopedObject, if the LeolaMethod annotation is present on the supplied Method, the LeolaMethod.alias() will be used as the method alias name.
LeoNativeFunction	addMethod(Object jObject, Method method, String alias) Adds a native Java method into this LeoScopedObject
void	addProperty(LeoObject member, LeoObject property) Adds a data member to this LeoScopedObject
NamespaceDefinitions	getNamespaceDefinitions()
LeoObject	getObject(LeoObject key) Retrieves a property from this object.
LeoArray	getProperties()
LeoObject	getProperty(LeoObject member) Attempts to look up the data member with the supplied name.
LeoArray	getPropertyNames()
Scope	getScope()
boolean	hasObject(LeoObject key) Determines if the supplied key has an associated value
boolean	hasProperty(LeoObject member) Determines if a data member exists in this Scope or parent scopes
boolean	isScopedObject()
protected LeoObject	lazyGetProperty(LeoObject member, Map<String,Method> methods)
void	putObject(LeoObject reference, LeoObject value) Places the data member in this scope.
void	putObject(String reference, LeoObject value) Places the data member in this scope.
void	removeProperty(LeoObject member) Removes the data member from this LeoScopedObject
void	setObject(LeoObject key, LeoObject value) Sets a property on this object.
LeoObject	xgetObject(LeoObject key) Similar to LeoObject.getObject(LeoObject) in every way, with the exception that this will throw a LeolaRuntimeException is the attribute is not found.
LeoObject	xgetProperty(LeoObject member) Attempts to look up the data member with the supplied name.

Methods inherited from class leola.vm.types.LeoOuterObject

getOuters, isOuter

Methods inherited from class leola.vm.types.LeoObject

$add, $add, $add, $add, $band, $band, $band, $band, $bnot, $bor, $bor, $bor, $bor, $bsl, $bsl, $bsl, $bsl, $bsr, $bsr, $bsr, $bsr, $div, $div, $div, $div, $eq, $eq, $eq, $eq, $gt, $gt, $gt, $gt, $gte, $gte, $gte, $gte, $index, $index, $index, $index, $lt, $lt, $lt, $lt, $lte, $lte, $lte, $lte, $mod, $mod, $mod, $mod, $mul, $mul, $mul, $mul, $neg, $neq, $neq, $neq, $neq, $req, $sindex, $sub, $sub, $sub, $sub, $xor, $xor, $xor, $xor, as, as, asByte, asChar, asDouble, asFloat, asInt, asLong, asShort, call, call, call, call, call, call, call, clone, compareTo, equals, getLocals, getNativeMember, getNativeMethod, getNativeMethod, getNumberOfArgs, getObject, getType, getValue, getValue, hasNativeMethod, hasNativeMethod, hasObject, hasVarargs, isArray, isAssignable, isBoolean, isClass, isError, isFunction, isGenerator, isMap, isNamespace, isNativeClass, isNativeFunction, isNull, isNumber, isOfType, isOfType, isOfType, isOfType, isString, isTrue, isTrue, read, removeInterfaceMethods, rethrow, setObject, throwAttributeAccessError, throwAttributeError, throwAttributeError, throwClassNotFoundError, throwDivideByZeroError, throwIfError, throwMethodError, throwNativeMethodError, throwNotImplementedError, toJavaObject, toLeoString, toString, valueOf, write, xcall, xcall, xcall, xcall, xcall, xcall, xcall, xgetObject

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

LeoScopedObject

public LeoScopedObject(LeoObject.LeoType type,
                       Scope scope,
                       int numberOfOuters)

Parameters:

type -

scope -

Method Detail

getScope

public Scope getScope()

Overrides:

getScope in class LeoObject

Returns:

the scope

isScopedObject

public boolean isScopedObject()

Overrides:

isScopedObject in class LeoObject

Returns:

if this object has it's own scope.

$eq

public boolean $eq(LeoObject other)

Description copied from class: LeoObject

Determines if it equals another object.

Specified by:

$eq in class LeoObject

Returns:

true if it equals

getNamespaceDefinitions

public NamespaceDefinitions getNamespaceDefinitions()

Returns:

the NamespaceDefinitions within this scope

addMethod

public LeoNativeFunction addMethod(Method method)

Adds the Java method into this LeoScopedObject

Parameters:

method -

Returns:

the LeoNativeFunction that represents the Java method

addMethod

public LeoNativeFunction addMethod(Object jObject,
                                   Method method)

Adds the Java method into this LeoScopedObject, if the LeolaMethod annotation is present on the supplied Method, the LeolaMethod.alias() will be used as the method alias name.

Parameters:

jObject -

method -

Returns:

the LeoNativeFunction that represents the Java method

addMethod

public LeoNativeFunction addMethod(Object jObject,
                                   Method method,
                                   String alias)

Adds a native Java method into this LeoScopedObject

Parameters:

jObject - the Java instance

method - the Java method

alias - an alias name for the Java method

Returns:

the LeoNativeFunction that represents the Java method

setObject

public void setObject(LeoObject key,
                      LeoObject value)

Description copied from class: LeoObject

Sets a property on this object.

Overrides:

setObject in class LeoObject

See Also:

LeoScopedObject#addProperty(LeoString, LeoObject)

getObject

public LeoObject getObject(LeoObject key)

Description copied from class: LeoObject

Retrieves a property from this object. If this LeoObject supports associations, this will attempt to find the object with the associated key. If the key is not found, this will return LeoObject.NULL.

Overrides:

getObject in class LeoObject

Returns:

the associated object if found; otherwise LeoObject.NULL

See Also:

LeoObject.xgetObject(LeoObject)

xgetObject

public LeoObject xgetObject(LeoObject key)
                     throws LeolaRuntimeException

Description copied from class: LeoObject

Similar to LeoObject.getObject(LeoObject) in every way, with the exception that this will throw a LeolaRuntimeException is the attribute is not found.

Overrides:

xgetObject in class LeoObject

Returns:

the object associated with the supplied key

Throws:

LeolaRuntimeException - if the key is not bound

hasObject

public boolean hasObject(LeoObject key)

Description copied from class: LeoObject

Determines if the supplied key has an associated value

Overrides:

hasObject in class LeoObject

Returns:

true if the supplied key has an associated value, otherwise false

putObject

public void putObject(String reference,
                      LeoObject value)

Places the data member in this scope. This is different than setObject(LeoObject, LeoObject) in that the latter from will scan the parent scopes to determine if it should override a data member, as this function will not, it will always place it in this Scope

Parameters:

reference -

value -

putObject

public void putObject(LeoObject reference,
                      LeoObject value)

Places the data member in this scope. This is different than setObject(LeoObject, LeoObject) in that the latter from will scan the parent scopes to determine if it should override a data member, as this function will not, it will always place it in this Scope

Parameters:

reference -

value -

hasProperty

public boolean hasProperty(LeoObject member)

Determines if a data member exists in this Scope or parent scopes

Parameters:

member -

Returns:

true if found within the hierarchy of this Scope. This will always exclude the global Scope

xgetProperty

public LeoObject xgetProperty(LeoObject member)
                       throws LeolaRuntimeException

Attempts to look up the data member with the supplied name.

Parameters:

member - - the name of the property

Returns:

the property value if found, otherwise this will throw LeolaRuntimeException

Throws:

LeolaRuntimeException

getProperty

public LeoObject getProperty(LeoObject member)

Attempts to look up the data member with the supplied name.

Parameters:

member - - the name of the property

Returns:

the property value if found, otherwise LeoNull

getPropertyNames

public LeoArray getPropertyNames()

Returns:

returns the property names, performance note, this is calculated new each time.

getProperties

public LeoArray getProperties()

Returns:

returns the property objects, performance note, this is calculated new each time, moreover any changes to the LeoArray are reflected on this scope.

addProperty

public void addProperty(LeoObject member,
                        LeoObject property)

Adds a data member to this LeoScopedObject

Parameters:

member -

property -

removeProperty

public void removeProperty(LeoObject member)

Removes the data member from this LeoScopedObject

Parameters:

member -

lazyGetProperty

protected LeoObject lazyGetProperty(LeoObject member,
                                    Map<String,Method> methods)