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

Class ExpressionVisitor.Default<R>

java.lang.Object

software.amazon.smithy.rulesengine.language.syntax.expressions.ExpressionVisitor.Default<R>

All Implemented Interfaces:

ExpressionVisitor<R>

Direct Known Subclasses:

TraversingVisitor

Enclosing interface:

ExpressionVisitor<R>

public abstract static class ExpressionVisitor.Default<R>
extends Object
implements ExpressionVisitor<R>

Nested Class Summary

Nested classes/interfaces inherited from interface software.amazon.smithy.rulesengine.language.syntax.expressions.ExpressionVisitor

ExpressionVisitor.Default<R>

Constructor Summary

Constructors

Constructor	Description
Default()

Method Summary

Modifier and Type	Method	Description
abstract R	getDefault()
R	visitBoolEquals(Expression left, Expression right)	Does a boolean equality check.
R	visitCoalesce(List<Expression> expressions)	Visits a coalesce function.
R	visitGetAttr(GetAttr getAttr)	Visits a GetAttr function.
R	visitIsSet(Expression fn)	Visits an isSet function.
R	visitIte(Expression condition, Expression trueValue, Expression falseValue)	Visits an if-then-else (ITE) function.
R	visitLibraryFunction(FunctionDefinition fn, List<Expression> args)	Visits a library function.
R	visitLiteral(Literal literal)	Visits a literal.
R	visitNot(Expression not)	Visits a not function.
R	visitRef(Reference reference)	Visits a reference.
R	visitStringEquals(Expression left, Expression right)	Does a string equality check.

Methods inherited from class java.lang.Object

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

Constructor Details

Default

public Default()

Method Details

getDefault

public abstract R getDefault()

visitLiteral

public R visitLiteral(Literal literal)

Description copied from interface: ExpressionVisitor

Visits a literal.

Specified by:

visitLiteral in interface ExpressionVisitor<R>

Parameters:

literal - the literal to visit.

Returns:

the value from the visitor.

visitRef

public R visitRef(Reference reference)

Description copied from interface: ExpressionVisitor

Visits a reference.

Specified by:

visitRef in interface ExpressionVisitor<R>

Parameters:

reference - the reference to visit.

Returns:

the value from the visitor.

visitGetAttr

public R visitGetAttr(GetAttr getAttr)

Description copied from interface: ExpressionVisitor

Visits a GetAttr function.

Specified by:

visitGetAttr in interface ExpressionVisitor<R>

Parameters:

getAttr - the GetAttr function to visit.

Returns:

the value from the visitor.

visitIsSet

public R visitIsSet(Expression fn)

Description copied from interface: ExpressionVisitor

Visits an isSet function.

Specified by:

visitIsSet in interface ExpressionVisitor<R>

Parameters:

fn - the isSet function to visit.

Returns:

the value from the visitor.

visitCoalesce

public R visitCoalesce(List<Expression> expressions)

Description copied from interface: ExpressionVisitor

Visits a coalesce function.

Specified by:

visitCoalesce in interface ExpressionVisitor<R>

Parameters:

expressions - The coalesce expressions to check.

Returns:

the value from the visitor.

visitNot

public R visitNot(Expression not)

Description copied from interface: ExpressionVisitor

Visits a not function.

Specified by:

visitNot in interface ExpressionVisitor<R>

Parameters:

not - the not function to visit.

Returns:

the value from the visitor.

visitBoolEquals

public R visitBoolEquals(Expression left,
 Expression right)

Description copied from interface: ExpressionVisitor

Does a boolean equality check.

Specified by:

visitBoolEquals in interface ExpressionVisitor<R>

Parameters:

left - the first value to compare.

right - the second value to compare.

Returns:

the value from the visitor.

visitStringEquals

public R visitStringEquals(Expression left,
 Expression right)

Description copied from interface: ExpressionVisitor

Does a string equality check.

Specified by:

visitStringEquals in interface ExpressionVisitor<R>

Parameters:

left - the first value to compare.

right - the second value to compare.

Returns:

the value from the visitor.

visitIte

public R visitIte(Expression condition,
 Expression trueValue,
 Expression falseValue)

Description copied from interface: ExpressionVisitor

Visits an if-then-else (ITE) function.

Specified by:

visitIte in interface ExpressionVisitor<R>

Parameters:

condition - the boolean condition expression.

trueValue - the value if condition is true.

falseValue - the value if condition is false.

Returns:

the value from the visitor.

visitLibraryFunction

public R visitLibraryFunction(FunctionDefinition fn,
 List<Expression> args)

Description copied from interface: ExpressionVisitor

Visits a library function.

Specified by:

visitLibraryFunction in interface ExpressionVisitor<R>

Parameters:

fn - the library function to visit.

args - the arguments to the function being visited.

Returns:

the value from the visitor.