org.panda_lang.framework.language.architecture.expression

Class PandaExpression

java.lang.Object

org.panda_lang.framework.language.architecture.expression.PandaExpression

All Implemented Interfaces:

Expressible, Expression, ExpressionEvaluator, Typed

Direct Known Subclasses:

AccessorExpression, AssignerExpression

public class PandaExpression
extends Object
implements Expression

Constructor Summary

Constructors

Modifier	Constructor and Description
	PandaExpression(DynamicExpression expression)
protected	PandaExpression(ExpressionValueType type, Type returnType, ExpressionEvaluator evaluator, Object value)
	PandaExpression(Type returnType, Object value)

Method Summary

Modifier and Type	Method and Description
Object	evaluate(ProcessStack stack, Object instance) Evaluate expression using the specified branch
ExpressionValueType	getExpressionType() Get expression type
Type	getType() Get associated type
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.panda_lang.framework.design.architecture.expression.Expression

isNull, toExpression

Constructor Detail

PandaExpression

public PandaExpression(Type returnType,
                       Object value)

PandaExpression

public PandaExpression(DynamicExpression expression)

PandaExpression

protected PandaExpression(ExpressionValueType type,
                          Type returnType,
                          ExpressionEvaluator evaluator,
                          Object value)

Method Detail

evaluate

public Object evaluate(ProcessStack stack,
                       Object instance)
                throws Exception

Description copied from interface: ExpressionEvaluator

Evaluate expression using the specified branch

Specified by:

evaluate in interface ExpressionEvaluator

Parameters:

stack - the frame to use

Returns:

nullable value

Throws:

Exception

getType

public Type getType()

Description copied from interface: Typed

Get associated type

Specified by:

getType in interface Typed

Returns:

the type of result

getExpressionType

public ExpressionValueType getExpressionType()

Description copied from interface: Expression

Get expression type

Specified by:

getExpressionType in interface Expression

Returns:

the type

toString

public String toString()

Overrides:

toString in class Object