Package software.amazon.smithy.rulesengine.language.syntax.expressions

Class Reference

java.lang.Object

software.amazon.smithy.rulesengine.language.syntax.SyntaxElement

software.amazon.smithy.rulesengine.language.syntax.expressions.Expression

software.amazon.smithy.rulesengine.language.syntax.expressions.Reference

All Implemented Interfaces:

FromSourceLocation, ToNode, TypeCheck, ToCondition, ToExpression

public final class Reference
extends Expression

A reference to a field.

Constructor Summary

Constructors

Constructor	Description
Reference(Identifier name, FromSourceLocation sourceLocation)	Creates a Reference for the identifier from the given source location.

Method Summary

Modifier and Type	Method	Description
<R> R	accept(ExpressionVisitor<R> visitor)	Invoke the ExpressionVisitor functions for this expression.
boolean	equals(java.lang.Object o)
Identifier	getName()	Gets the name of the field being referenced.
int	hashCode()
java.lang.String	template()	Converts this expression to a string template.
Node	toNode()	Converts a value to a Node.
java.lang.String	toString()
protected Type	typeCheckLocal(Scope<Type> scope)

Methods inherited from class software.amazon.smithy.rulesengine.language.syntax.expressions.Expression

fromNode, getLiteral, getReference, getSourceLocation, of, of, of, parseShortform, toConditionBuilder, toExpression, type, typeCheck

Methods inherited from class software.amazon.smithy.rulesengine.language.syntax.SyntaxElement

booleanEqual, getAttr, getAttr, isSet, isValidHostLabel, not, parseUrl, stringEqual, substring

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface software.amazon.smithy.rulesengine.language.syntax.ToCondition

toCondition, toCondition

Constructor Detail

Reference

public Reference(Identifier name,
                 FromSourceLocation sourceLocation)

Creates a Reference for the identifier from the given source location.

Parameters:

name - the identifier being referenced.

sourceLocation - the source location for the reference.

Method Detail

getName

public Identifier getName()

Gets the name of the field being referenced.

Returns:

the name of the referenced field.

template

public java.lang.String template()

Description copied from class: SyntaxElement

Converts this expression to a string template. By default, this implementation returns a RuntimeException.

Overrides:

template in class SyntaxElement

Returns:

the String template.

accept

public <R> R accept(ExpressionVisitor<R> visitor)

Description copied from class: Expression

Invoke the ExpressionVisitor functions for this expression.

Specified by:

accept in class Expression

Type Parameters:

R - the visitor return type.

Parameters:

visitor - the visitor to be invoked.

Returns:

the return value of the visitor.

typeCheckLocal

protected Type typeCheckLocal(Scope<Type> scope)

Specified by:

typeCheckLocal in class Expression

toNode

public Node toNode()

Description copied from interface: ToNode

Converts a value to a Node.

Returns:

Returns the creates Node.

equals

public boolean equals(java.lang.Object o)

Specified by:

equals in class Expression

hashCode

public int hashCode()

Specified by:

hashCode in class Expression

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object