org.protelis.lang.interpreter.impl

Class Constant<T>

java.lang.Object

org.protelis.lang.interpreter.impl.AbstractAnnotatedTree<T>

org.protelis.lang.interpreter.impl.Constant<T>

Type Parameters:

T -

All Implemented Interfaces:

java.io.Serializable, AnnotatedTree<T>, WithBytecode

Direct Known Subclasses:

NumericConstant

public class Constant<T>
extends AbstractAnnotatedTree<T>

An arbitrary object-valued constant.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Constant(Metadata metadata, T obj)

Method Summary

Modifier and Type	Method and Description
Constant<T>	copy()
void	evaluate(ExecutionContext context) Evaluates this AST node.
Bytecode	getBytecode()
protected T	getInternalObject()
java.lang.String	getName()
java.lang.String	toString()

Methods inherited from class org.protelis.lang.interpreter.impl.AbstractAnnotatedTree

branchesToString, branchesToString, deepCopyBranches, erase, eval, evalInNewStackFrame, forEach, forEachWithIndex, getAnnotation, getBranch, getBranches, getBranchesAnnotations, getBranchesNumber, getMetadata, isErased, isNullable, parallelForEachWithIndex, projectAndEval, reset, setAnnotation, stringFor

Methods inherited from class java.lang.Object

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

Constructor Detail

Constant

public Constant(Metadata metadata,
                T obj)

Parameters:

metadata - A Metadata object containing information about the code that generated this AST node.

obj - the constant to be associated

Method Detail

copy

public Constant<T> copy()

Returns:

a copy of this program.

evaluate

public final void evaluate(ExecutionContext context)

Description copied from class: AbstractAnnotatedTree

Evaluates this AST node. This method can throw any exception, AbstractAnnotatedTree takes care of storing the necessary metadata.

Specified by:

evaluate in class AbstractAnnotatedTree<T>

Parameters:

context - the execution context

getBytecode

public final Bytecode getBytecode()

Returns:

the element Bytecode

getInternalObject

protected final T getInternalObject()

Returns:

the constant value

getName

public java.lang.String getName()

Specified by:

getName in interface AnnotatedTree<T>

Overrides:

getName in class AbstractAnnotatedTree<T>

Returns:

The name of the operation

toString

public java.lang.String toString()

Overrides:

toString in class AbstractAnnotatedTree<T>