Package software.amazon.smithy.rulesengine.language.eval

Class Scope<T>

java.lang.Object

software.amazon.smithy.rulesengine.language.eval.Scope<T>

Type Parameters:

T - The type of values in scope.

public final class Scope<T>
extends Object

Scope is a stack for tracking facts for named values of type T.

Constructor Summary

Constructors

Constructor	Description
Scope()

Method Summary

Modifier and Type	Method	Description
T	expectValue(Identifier name)
static Scope<Value>	fromNode(Node node)
Optional<Map.Entry<Identifier,T>>	getDeclaration(Identifier name)
Optional<T>	getValue(Identifier name)
<U> U	inScope(Supplier<U> func)
void	insert(String name, T value)
void	insert(Identifier name, T value)
boolean	isNonNull(Reference reference)
void	pop()
void	push()
void	setNonNull(Reference name)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

Scope

public Scope()

Method Details

fromNode

public static Scope<Value> fromNode(Node node)

push

public void push()

pop

public void pop()

insert

public void insert(String name,
 T value)

insert

public void insert(Identifier name,
 T value)

setNonNull

public void setNonNull(Reference name)

inScope

public <U> U inScope(Supplier<U> func)

toString

public String toString()

Overrides:

toString in class Object

isNonNull

public boolean isNonNull(Reference reference)

expectValue

public T expectValue(Identifier name)
              throws InnerParseError

Throws:

InnerParseError

getDeclaration

public Optional<Map.Entry<Identifier,T>> getDeclaration(Identifier name)

getValue

public Optional<T> getValue(Identifier name)