com.google.gwt.dev.js

Class JsFirstExpressionVisitor

java.lang.Object

com.google.gwt.dev.js.ast.JsVisitor

com.google.gwt.dev.js.JsFirstExpressionVisitor

public class JsFirstExpressionVisitor
extends JsVisitor

Determines if an expression statement needs to be surrounded by parentheses. The statement or the left-most expression needs to be surrounded by parentheses if the left-most expression is an object literal or a function object. Function declarations do not need parentheses. For example the following require parentheses:

• { key : 'value'}
• { key : 'value'}.key
• function () {return 1;}()
• function () {return 1;}.prototype

The following do not require parentheses:

• var x = { key : 'value'}
• "string" + { key : 'value'}.key
• function func() {}
• function() {}

Field Summary

Fields inherited from class com.google.gwt.dev.js.ast.JsVisitor

LVALUE_CONTEXT, UNMODIFIABLE_CONTEXT

Method Summary

Modifier and Type	Method and Description
static boolean	exec(JsExprStmt statement)
boolean	visit(JsArrayAccess x, JsContext ctx)
boolean	visit(JsArrayLiteral x, JsContext ctx)
boolean	visit(JsBinaryOperation x, JsContext ctx)
boolean	visit(JsConditional x, JsContext ctx)
boolean	visit(JsFunction x, JsContext ctx)
boolean	visit(JsInvocation x, JsContext ctx)
boolean	visit(JsNameRef x, JsContext ctx)
boolean	visit(JsNew x, JsContext ctx)
boolean	visit(JsObjectLiteral x, JsContext ctx)
boolean	visit(JsPostfixOperation x, JsContext ctx)
boolean	visit(JsPrefixOperation x, JsContext ctx)
boolean	visit(JsRegExp x, JsContext ctx)

Methods inherited from class com.google.gwt.dev.js.ast.JsVisitor

accept, acceptList, acceptLvalue, acceptWithInsertRemove, didChange, doAccept, doAcceptList, doAcceptLvalue, doAcceptWithInsertRemove, doTraverse, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, endVisit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, toString

Method Detail

exec

public static boolean exec(JsExprStmt statement)

visit

public boolean visit(JsArrayAccess x,
                     JsContext ctx)

Overrides:

visit in class JsVisitor

visit

public boolean visit(JsArrayLiteral x,
                     JsContext ctx)

Overrides:

visit in class JsVisitor

visit

public boolean visit(JsBinaryOperation x,
                     JsContext ctx)

Overrides:

visit in class JsVisitor

visit

public boolean visit(JsConditional x,
                     JsContext ctx)

Overrides:

visit in class JsVisitor

visit

public boolean visit(JsFunction x,
                     JsContext ctx)

Overrides:

visit in class JsVisitor

visit

public boolean visit(JsInvocation x,
                     JsContext ctx)

Overrides:

visit in class JsVisitor

visit

public boolean visit(JsNameRef x,
                     JsContext ctx)

Overrides:

visit in class JsVisitor

visit

public boolean visit(JsNew x,
                     JsContext ctx)

Overrides:

visit in class JsVisitor

visit

public boolean visit(JsObjectLiteral x,
                     JsContext ctx)

Overrides:

visit in class JsVisitor

visit

public boolean visit(JsPostfixOperation x,
                     JsContext ctx)

Overrides:

visit in class JsVisitor

visit

public boolean visit(JsPrefixOperation x,
                     JsContext ctx)

Overrides:

visit in class JsVisitor

visit

public boolean visit(JsRegExp x,
                     JsContext ctx)

Overrides:

visit in class JsVisitor