com.google.javascript.jscomp

Class FunctionRewriter.ReturnConstantReducer

java.lang.Object

com.google.javascript.jscomp.FunctionRewriter.Reducer

com.google.javascript.jscomp.FunctionRewriter.SingleReturnStatementReducer

com.google.javascript.jscomp.FunctionRewriter.ReturnConstantReducer

Enclosing class:

FunctionRewriter

private static class FunctionRewriter.ReturnConstantReducer
extends FunctionRewriter.SingleReturnStatementReducer

Reduces return immutable constant literal methods declarations with calls to a constant return method factory. Example: a.prototype.b = function() {return 10} is reduced to: a.prototype.b = returnconst(10);

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static java.lang.String	FACTORY_METHOD_NAME
(package private) static java.lang.String	HELPER_SOURCE

Constructor Summary

Constructors

Modifier	Constructor and Description
private	ReturnConstantReducer()

Method Summary

Modifier and Type	Method and Description
java.lang.String	getHelperSource()
private Node	getValueNode(Node functionNode) Checks if the function matches the pattern: function() {return } and returns if a match is found.
Node	reduce(Node node)

Methods inherited from class com.google.javascript.jscomp.FunctionRewriter.SingleReturnStatementReducer

maybeGetSingleReturnRValue

Methods inherited from class com.google.javascript.jscomp.FunctionRewriter.Reducer

buildCallNode

Methods inherited from class java.lang.Object

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

Field Detail

FACTORY_METHOD_NAME

static final java.lang.String FACTORY_METHOD_NAME

See Also:

Constant Field Values

HELPER_SOURCE

static final java.lang.String HELPER_SOURCE

See Also:

Constant Field Values

Constructor Detail

ReturnConstantReducer

private ReturnConstantReducer()

Method Detail

getHelperSource

public java.lang.String getHelperSource()

Specified by:

getHelperSource in class FunctionRewriter.Reducer

Returns:

JS source for helper methods used by this reduction.

reduce

public Node reduce(Node node)

Specified by:

reduce in class FunctionRewriter.Reducer

Returns:

root of the reduced subtree if a reduction was applied; otherwise returns the node argument.

getValueNode

private Node getValueNode(Node functionNode)

Checks if the function matches the pattern: function() {return } and returns if a match is found.

Returns:

the immutable value node; or null.