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Java Source Code / Java Documentation » Scripting » oscript 2.10.4 » oscript.data

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

oscript.data .Value

oscript.data .Scope

oscript.data .ForkScope

ForkScope
public class ForkScope extends Scope (Code)
	The `ForkScope` is used to implement a fork in the scope chain. This is needed because when evaluating a superFxn, or a method defined in the superFxn, the scope chain should use the scope that the superFxn is defined in, rather than the scope of the derived function. This is basically just a simple wrapper for the `obj`, with the exception that lookupInScope uses `env` as the previous instead. This means that any member created in this scope is actually created in the `obj` scope. author: Rob Clark (rob@ti.com)

Constructor Summary
	ForkScope(Scope obj, Scope env)

Method Summary
public Value	__getInstanceMember(int id)
public Value	createMember(int id, int attr) Create a member of this object with the specified value.
public void	free()
public Value	getMember(int id, boolean exception) Get a member of this object.
public Scope	getSafeCopy() In case a scope has any resource allocated from a source which will no long be valid after a stack frame has returned (ie.
public Value	getSuper() Lookup the "super" within a scope.
protected Value	getTypeImpl() Get the type of this object.
public boolean	isSafe()
public Value	lookupInScope(int id) Get a member from this scope.
public void	mixin(Value val) "mixin" the specified variable into the current scope.

Constructor Detail

ForkScope
ForkScope(Scope obj, Scope env)(Code)
	Parameters: obj - the object Parameters: env - the environment

Method Detail

__getInstanceMember
public Value __getInstanceMember(int id)(Code)

createMember
public Value createMember(int id, int attr)(Code)
	Create a member of this object with the specified value. Parameters: id - the id of the symbol that maps to the member Parameters: attr - the attributes of the object (see `Reference`.) See Also: Reference

free
public void free()(Code)
	Indicate that this scope is no longer needed

getMember
public Value getMember(int id, boolean exception) throws PackagedScriptObjectException(Code)
	Get a member of this object. Parameters: id - the id of the symbol that maps to the member Parameters: exception - whether an exception should be thrown if themember object is not resolved a reference to the member throws: PackagedScriptObjectException - (NoSuchMethodException) throws: PackagedScriptObjectException - (NoSuchMemberException)

getSafeCopy
public Scope getSafeCopy()(Code)
	In case a scope has any resource allocated from a source which will no long be valid after a stack frame has returned (ie. resource allocated from stack), return a copy of the scope that is safe to keep after the stack frame returns.

getSuper
public Value getSuper()(Code)
	Lookup the "super" within a scope. Within a function body, "super" is the overriden function (if there is one). the "this" ScriptObject within this scope

getTypeImpl
protected Value getTypeImpl()(Code)
	Get the type of this object. The returned type doesn't have to take into account the possibility of a script type extending a built-in type, since that is handled by ForkScope.getType . the object's type

isSafe
public boolean isSafe()(Code)

lookupInScope
public Value lookupInScope(int id) throws PackagedScriptObjectException(Code)
	Get a member from this scope. This is used to access local variables and object attributes from methods of the object. If the attribute isn't in this node in the scope chain, then the `previous` node in the scope chain is checked. Parameters: id - the id of the symbol that maps to the member throws: PackagedScriptObjectException - (NoSuchMemberException)

mixin
public void mixin(Value val)(Code)
	"mixin" the specified variable into the current scope. Parameters: val - the value to mixin to this scope

Fields inherited from oscript.data.Scope

protected Scope previous(Code)(Java Doc)

Methods inherited from oscript.data.Scope

abstract public Value __getInstanceMember(int id)(Code)(Java Doc)
public void __setJavaObject(Object javaObject)(Code)(Java Doc)
final public Value createMember(String name, int attr)(Code)(Java Doc)
final public Value createMember(Value name, int attr)(Code)(Java Doc)
abstract public Value createMember(int id, int attr)(Code)(Java Doc)
final protected static String findDesc(Scope scope)(Code)(Java Doc)
abstract public void free()(Code)(Java Doc)
public Value getCallee()(Code)(Java Doc)
protected Value getInstanceMemberImpl(int id)(Code)(Java Doc)
protected Value getMemberImpl(int id)(Code)(Java Doc)
public Scope getPreviousScope()(Code)(Java Doc)
public Scope getSafeCopy()(Code)(Java Doc)
public Value getSuper()(Code)(Java Doc)
public Value getThis()(Code)(Java Doc)
public Value getThis(Value val)(Code)(Java Doc)
abstract public boolean isSafe()(Code)(Java Doc)
final public Value lookupInScope(String name) throws PackagedScriptObjectException(Code)(Java Doc)
final public Value lookupInScope(Value name) throws PackagedScriptObjectException(Code)(Java Doc)
abstract public Value lookupInScope(int id) throws PackagedScriptObjectException(Code)(Java Doc)
abstract public void mixin(Value val)(Code)(Java Doc)

Fields inherited from oscript.data.Value

final public static boolean DEBUG(Code)(Java Doc)
final public static String[] MEMBER_NAMES(Code)(Java Doc)
final public static Value NULL(Code)(Java Doc)
final public static String PARENT_TYPE_NAME(Code)(Java Doc)
final public static BuiltinType TYPE(Code)(Java Doc)
final public static String TYPE_NAME(Code)(Java Doc)
final public static Value UNDEFINED(Code)(Java Doc)

Methods inherited from oscript.data.Value

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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