Package software.amazon.smithy.rulesengine.language.stdlib

Class StringEquals

java.lang.Object

software.amazon.smithy.rulesengine.language.util.MandatorySourceLocation

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

software.amazon.smithy.rulesengine.language.syntax.fn.Function

software.amazon.smithy.rulesengine.language.stdlib.StringEquals

All Implemented Interfaces:

FromSourceLocation, ToNode, Into<Condition>, TypeCheck

public final class StringEquals
extends Function

A rule-set function for comparing strings for equality.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ID

Fields inherited from class software.amazon.smithy.rulesengine.language.syntax.fn.Function

functionNode

Constructor Summary

Constructors

Constructor	Description
StringEquals(FunctionNode functionNode)

Method Summary

Modifier and Type	Method	Description
<R> R	accept(ExpressionVisitor<R> visitor)	Invoke the ExpressionVisitor functions for this expression.
static Function	ofExpressions(Expression left, Expression right)	Constructs a function that compare the left and right expressions for string equality.
protected Type	typeCheckLocal(Scope<Type> scope)

Methods inherited from class software.amazon.smithy.rulesengine.language.syntax.fn.Function

condition, condition, equals, expectOneArgument, getArguments, getName, getSourceLocation, hashCode, into, toNode, toString

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

equal, equal, fromNode, getAttr, getAttr, isSet, isValidHostLabel, isVirtualHostableS3Bucket, literal, not, of, of, of, parseArn, parseShortform, parseUrl, reference, substring, template, type, typeCheck

Methods inherited from class java.lang.Object

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

Field Details

ID

public static final String ID

See Also:

• Constant Field Values

Constructor Details

StringEquals

public StringEquals(FunctionNode functionNode)

Method Details

ofExpressions

public static Function ofExpressions(Expression left,
 Expression right)

Constructs a function that compare the left and right expressions for string equality.

Parameters:

left - the left expression.

right - the right expression.

Returns:

a function instance representing the StringEquals comparison.

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)
                       throws InnerParseError

Specified by:

typeCheckLocal in class Expression

Throws:

InnerParseError