org.protelis.lang.interpreter.impl

Class Constant<T>

java.lang.Object

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

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

Type Parameters:

T - the type of the constant

All Implemented Interfaces:

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

Direct Known Subclasses:

NumericConstant

public class Constant<T>
extends AbstractProtelisAST<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
T	evaluate(ExecutionContext context) Evaluates this AST node.
Bytecode	getBytecode()
T	getConstantValue()
java.lang.String	getName()
java.lang.String	toString()

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

branchesToString, branchesToString, eval, forEach, forEachWithIndex, getBranch, getBranches, getBranchesNumber, getMetadata, isNullable, 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

evaluate

public final T evaluate(ExecutionContext context)

Description copied from class: AbstractProtelisAST

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

Specified by:

evaluate in class AbstractProtelisAST<T>

Parameters:

context - the execution context

Returns:

the result of the evaluation

getBytecode

public final Bytecode getBytecode()

Returns:

the element Bytecode

getName

public java.lang.String getName()

Specified by:

getName in interface ProtelisAST<T>

Overrides:

getName in class AbstractProtelisAST<T>

Returns:

The name of the operation

toString

public java.lang.String toString()

Overrides:

toString in class AbstractProtelisAST<T>

getConstantValue

public final T getConstantValue()

Returns:

the value associated to this constant