org.protelis.lang.interpreter.impl

Class AssignmentOp

java.lang.Object

org.protelis.lang.interpreter.impl.AbstractProtelisAST<java.lang.Object>

org.protelis.lang.interpreter.impl.AssignmentOp

All Implemented Interfaces:

java.io.Serializable, ProtelisAST<java.lang.Object>, WithBytecode

public final class AssignmentOp
extends AbstractProtelisAST<java.lang.Object>

Declare a variable from a "let" expression.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AssignmentOp(Metadata metadata, Reference name, ProtelisAST<?> value)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	evaluate(ExecutionContext context) Evaluates this AST node.
Bytecode	getBytecode()
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

AssignmentOp

public AssignmentOp(Metadata metadata,
                    Reference name,
                    ProtelisAST<?> value)

Parameters:

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

name - variable name

value - program to evaluate to compute the value

Method Detail

evaluate

public java.lang.Object 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<java.lang.Object>

Parameters:

context - the execution context

Returns:

the result of the evaluation

getName

public java.lang.String getName()

Specified by:

getName in interface ProtelisAST<java.lang.Object>

Overrides:

getName in class AbstractProtelisAST<java.lang.Object>

Returns:

The name of the operation

toString

public java.lang.String toString()

Overrides:

toString in class AbstractProtelisAST<java.lang.Object>

getBytecode

public Bytecode getBytecode()

Returns:

the element Bytecode