com.google.javascript.rhino

Class JSTypeExpression

java.lang.Object

com.google.javascript.rhino.JSTypeExpression

All Implemented Interfaces:

Serializable

public final class JSTypeExpression
extends Object
implements Serializable

When parsing a jsdoc, a type-annotation string is parsed to a type AST. Somewhat confusingly, we use the Node class both for type ASTs and for the source-code AST. JSTypeExpression wraps a type AST. During type checking, type ASTs are evaluated to JavaScript types.

Author:

nicksantos@google.com (Nick Santos)

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
JSTypeExpression(Node root, String sourceName)

Method Summary

Modifier and Type	Method and Description
JSTypeExpression	copy()
boolean	equals(Object other)
JSType	evaluate(StaticTypedScope<JSType> scope, TypeIRegistry registry) Evaluates the type expression into a JSType object.
Node	getRoot()
String	getSourceName()
int	hashCode()
boolean	isOptionalArg()
boolean	isVarArgs()
static JSTypeExpression	makeOptionalArg(JSTypeExpression expr) Make the given type expression into an optional type expression, if possible.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

JSTypeExpression

public JSTypeExpression(Node root,
                        String sourceName)

Method Detail

makeOptionalArg

public static JSTypeExpression makeOptionalArg(JSTypeExpression expr)

Make the given type expression into an optional type expression, if possible.

isOptionalArg

public boolean isOptionalArg()

Returns:

Whether this expression denotes an optional @param.

isVarArgs

public boolean isVarArgs()

Returns:

Whether this expression denotes a rest args @param.

evaluate

public JSType evaluate(StaticTypedScope<JSType> scope,
                       TypeIRegistry registry)

Evaluates the type expression into a JSType object.

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getRoot

public Node getRoot()

Returns:

The source for this type expression. Note that it will not contain an expression if there's an @override tag.

getSourceName

public String getSourceName()

toString

public String toString()

Overrides:

toString in class Object

copy

public JSTypeExpression copy()