strong-arc
Version:
A visual suite for the StrongLoop API Platform
1,038 lines (936 loc) • 41.7 kB
JavaScript
/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @constructor
* @param {!FormatterWorker.JavaScriptTokenizer} tokenizer
* @param {!FormatterWorker.JavaScriptFormattedContentBuilder} builder
*/
FormatterWorker.JavaScriptFormatter = function(tokenizer, builder)
{
this._tokenizer = tokenizer;
this._builder = builder;
this._token = null;
this._nextToken = this._tokenizer.next();
}
FormatterWorker.JavaScriptFormatter._identifierRegex = /^[$A-Z_][0-9A-Z_$]*$/i;
FormatterWorker.JavaScriptFormatter.prototype = {
format: function()
{
this._parseSourceElements(FormatterWorker.JavaScriptTokens.EOS);
this._consume(FormatterWorker.JavaScriptTokens.EOS);
},
/**
* @return {number}
*/
_peek: function()
{
return this._nextToken.token;
},
/**
* @return {number}
*/
_next: function()
{
if (this._token && this._token.token === FormatterWorker.JavaScriptTokens.EOS)
throw "Unexpected EOS token";
this._builder.addToken(this._nextToken);
this._token = this._nextToken;
this._nextToken = this._tokenizer.next(this._forceRegexp);
this._forceRegexp = false;
return this._token.token;
},
/**
* @param {number} token
*/
_consume: function(token)
{
var next = this._next();
if (next !== token)
throw "Unexpected token in consume: expected " + token + ", actual " + next;
},
/**
* @param {number} token
*/
_expect: function(token)
{
var next = this._next();
if (next !== token)
throw "Unexpected token: expected " + token + ", actual " + next;
},
_expectGeneralIdentifier: function()
{
var next = this._next();
if (next !== FormatterWorker.JavaScriptTokens.IDENTIFIER && !FormatterWorker.JavaScriptFormatter._identifierRegex.test(this._token.value))
throw "Unexpected token: expected javascript identifier, actual " + this._token.value;
},
_expectSemicolon: function()
{
if (this._peek() === FormatterWorker.JavaScriptTokens.SEMICOLON)
this._consume(FormatterWorker.JavaScriptTokens.SEMICOLON);
},
/**
* @return {boolean}
*/
_hasLineTerminatorBeforeNext: function()
{
return this._nextToken.nlb;
},
/**
* @param {number} endToken
*/
_parseSourceElements: function(endToken)
{
while (this._peek() !== endToken) {
this._parseStatement();
this._builder.addNewLine();
}
},
_parseStatementOrBlock: function()
{
if (this._peek() === FormatterWorker.JavaScriptTokens.LBRACE) {
this._builder.addSpace();
this._parseBlock();
return true;
}
this._builder.addNewLine();
this._builder.increaseNestingLevel();
this._parseStatement();
this._builder.decreaseNestingLevel();
},
_parseStatement: function()
{
switch (this._peek()) {
case FormatterWorker.JavaScriptTokens.LBRACE:
return this._parseBlock();
case FormatterWorker.JavaScriptTokens.CONST:
case FormatterWorker.JavaScriptTokens.VAR:
return this._parseVariableStatement();
case FormatterWorker.JavaScriptTokens.SEMICOLON:
return this._next();
case FormatterWorker.JavaScriptTokens.IF:
return this._parseIfStatement();
case FormatterWorker.JavaScriptTokens.DO:
return this._parseDoWhileStatement();
case FormatterWorker.JavaScriptTokens.WHILE:
return this._parseWhileStatement();
case FormatterWorker.JavaScriptTokens.FOR:
return this._parseForStatement();
case FormatterWorker.JavaScriptTokens.CONTINUE:
return this._parseContinueStatement();
case FormatterWorker.JavaScriptTokens.BREAK:
return this._parseBreakStatement();
case FormatterWorker.JavaScriptTokens.RETURN:
return this._parseReturnStatement();
case FormatterWorker.JavaScriptTokens.WITH:
return this._parseWithStatement();
case FormatterWorker.JavaScriptTokens.SWITCH:
return this._parseSwitchStatement();
case FormatterWorker.JavaScriptTokens.THROW:
return this._parseThrowStatement();
case FormatterWorker.JavaScriptTokens.TRY:
return this._parseTryStatement();
case FormatterWorker.JavaScriptTokens.FUNCTION:
return this._parseFunctionDeclaration();
case FormatterWorker.JavaScriptTokens.DEBUGGER:
return this._parseDebuggerStatement();
default:
return this._parseExpressionOrLabelledStatement();
}
},
_parseFunctionDeclaration: function()
{
this._expect(FormatterWorker.JavaScriptTokens.FUNCTION);
this._builder.addSpace();
this._expect(FormatterWorker.JavaScriptTokens.IDENTIFIER);
this._parseFunctionLiteral()
},
_parseBlock: function()
{
this._expect(FormatterWorker.JavaScriptTokens.LBRACE);
this._builder.addNewLine();
this._builder.increaseNestingLevel();
while (this._peek() !== FormatterWorker.JavaScriptTokens.RBRACE) {
this._parseStatement();
this._builder.addNewLine();
}
this._builder.decreaseNestingLevel();
this._expect(FormatterWorker.JavaScriptTokens.RBRACE);
},
_parseVariableStatement: function()
{
this._parseVariableDeclarations();
this._expectSemicolon();
},
_parseVariableDeclarations: function()
{
if (this._peek() === FormatterWorker.JavaScriptTokens.VAR)
this._consume(FormatterWorker.JavaScriptTokens.VAR);
else
this._consume(FormatterWorker.JavaScriptTokens.CONST)
this._builder.addSpace();
var isFirstVariable = true;
do {
if (!isFirstVariable) {
this._consume(FormatterWorker.JavaScriptTokens.COMMA);
this._builder.addSpace();
}
isFirstVariable = false;
this._expect(FormatterWorker.JavaScriptTokens.IDENTIFIER);
if (this._peek() === FormatterWorker.JavaScriptTokens.ASSIGN) {
this._builder.addSpace();
this._consume(FormatterWorker.JavaScriptTokens.ASSIGN);
this._builder.addSpace();
this._parseAssignmentExpression();
}
} while (this._peek() === FormatterWorker.JavaScriptTokens.COMMA);
},
_parseExpressionOrLabelledStatement: function()
{
this._parseExpression();
if (this._peek() === FormatterWorker.JavaScriptTokens.COLON) {
this._expect(FormatterWorker.JavaScriptTokens.COLON);
this._builder.addSpace();
this._parseStatement();
}
this._expectSemicolon();
},
_parseIfStatement: function()
{
this._expect(FormatterWorker.JavaScriptTokens.IF);
this._builder.addSpace();
this._expect(FormatterWorker.JavaScriptTokens.LPAREN);
this._parseExpression();
this._expect(FormatterWorker.JavaScriptTokens.RPAREN);
var isBlock = this._parseStatementOrBlock();
if (this._peek() === FormatterWorker.JavaScriptTokens.ELSE) {
if (isBlock)
this._builder.addSpace();
else
this._builder.addNewLine();
this._next();
if (this._peek() === FormatterWorker.JavaScriptTokens.IF) {
this._builder.addSpace();
this._parseStatement();
} else
this._parseStatementOrBlock();
}
},
_parseContinueStatement: function()
{
this._expect(FormatterWorker.JavaScriptTokens.CONTINUE);
var token = this._peek();
if (!this._hasLineTerminatorBeforeNext() && token !== FormatterWorker.JavaScriptTokens.SEMICOLON && token !== FormatterWorker.JavaScriptTokens.RBRACE && token !== FormatterWorker.JavaScriptTokens.EOS) {
this._builder.addSpace();
this._expect(FormatterWorker.JavaScriptTokens.IDENTIFIER);
}
this._expectSemicolon();
},
_parseBreakStatement: function()
{
this._expect(FormatterWorker.JavaScriptTokens.BREAK);
var token = this._peek();
if (!this._hasLineTerminatorBeforeNext() && token !== FormatterWorker.JavaScriptTokens.SEMICOLON && token !== FormatterWorker.JavaScriptTokens.RBRACE && token !== FormatterWorker.JavaScriptTokens.EOS) {
this._builder.addSpace();
this._expect(FormatterWorker.JavaScriptTokens.IDENTIFIER);
}
this._expectSemicolon();
},
_parseReturnStatement: function()
{
this._expect(FormatterWorker.JavaScriptTokens.RETURN);
var token = this._peek();
if (!this._hasLineTerminatorBeforeNext() && token !== FormatterWorker.JavaScriptTokens.SEMICOLON && token !== FormatterWorker.JavaScriptTokens.RBRACE && token !== FormatterWorker.JavaScriptTokens.EOS) {
this._builder.addSpace();
this._parseExpression();
}
this._expectSemicolon();
},
_parseWithStatement: function()
{
this._expect(FormatterWorker.JavaScriptTokens.WITH);
this._builder.addSpace();
this._expect(FormatterWorker.JavaScriptTokens.LPAREN);
this._parseExpression();
this._expect(FormatterWorker.JavaScriptTokens.RPAREN);
this._parseStatementOrBlock();
},
_parseCaseClause: function()
{
if (this._peek() === FormatterWorker.JavaScriptTokens.CASE) {
this._expect(FormatterWorker.JavaScriptTokens.CASE);
this._builder.addSpace();
this._parseExpression();
} else
this._expect(FormatterWorker.JavaScriptTokens.DEFAULT);
this._expect(FormatterWorker.JavaScriptTokens.COLON);
this._builder.addNewLine();
this._builder.increaseNestingLevel();
while (this._peek() !== FormatterWorker.JavaScriptTokens.CASE && this._peek() !== FormatterWorker.JavaScriptTokens.DEFAULT && this._peek() !== FormatterWorker.JavaScriptTokens.RBRACE) {
this._parseStatement();
this._builder.addNewLine();
}
this._builder.decreaseNestingLevel();
},
_parseSwitchStatement: function()
{
this._expect(FormatterWorker.JavaScriptTokens.SWITCH);
this._builder.addSpace();
this._expect(FormatterWorker.JavaScriptTokens.LPAREN);
this._parseExpression();
this._expect(FormatterWorker.JavaScriptTokens.RPAREN);
this._builder.addSpace();
this._expect(FormatterWorker.JavaScriptTokens.LBRACE);
this._builder.addNewLine();
this._builder.increaseNestingLevel();
while (this._peek() !== FormatterWorker.JavaScriptTokens.RBRACE)
this._parseCaseClause();
this._builder.decreaseNestingLevel();
this._expect(FormatterWorker.JavaScriptTokens.RBRACE);
},
_parseThrowStatement: function()
{
this._expect(FormatterWorker.JavaScriptTokens.THROW);
this._builder.addSpace();
this._parseExpression();
this._expectSemicolon();
},
_parseTryStatement: function()
{
this._expect(FormatterWorker.JavaScriptTokens.TRY);
this._builder.addSpace();
this._parseBlock();
var token = this._peek();
if (token === FormatterWorker.JavaScriptTokens.CATCH) {
this._builder.addSpace();
this._consume(FormatterWorker.JavaScriptTokens.CATCH);
this._builder.addSpace();
this._expect(FormatterWorker.JavaScriptTokens.LPAREN);
this._expect(FormatterWorker.JavaScriptTokens.IDENTIFIER);
this._expect(FormatterWorker.JavaScriptTokens.RPAREN);
this._builder.addSpace();
this._parseBlock();
token = this._peek();
}
if (token === FormatterWorker.JavaScriptTokens.FINALLY) {
this._consume(FormatterWorker.JavaScriptTokens.FINALLY);
this._builder.addSpace();
this._parseBlock();
}
},
_parseDoWhileStatement: function()
{
this._expect(FormatterWorker.JavaScriptTokens.DO);
var isBlock = this._parseStatementOrBlock();
if (isBlock)
this._builder.addSpace();
else
this._builder.addNewLine();
this._expect(FormatterWorker.JavaScriptTokens.WHILE);
this._builder.addSpace();
this._expect(FormatterWorker.JavaScriptTokens.LPAREN);
this._parseExpression();
this._expect(FormatterWorker.JavaScriptTokens.RPAREN);
this._expectSemicolon();
},
_parseWhileStatement: function()
{
this._expect(FormatterWorker.JavaScriptTokens.WHILE);
this._builder.addSpace();
this._expect(FormatterWorker.JavaScriptTokens.LPAREN);
this._parseExpression();
this._expect(FormatterWorker.JavaScriptTokens.RPAREN);
this._parseStatementOrBlock();
},
_parseForStatement: function()
{
this._expect(FormatterWorker.JavaScriptTokens.FOR);
this._builder.addSpace();
this._expect(FormatterWorker.JavaScriptTokens.LPAREN);
if (this._peek() !== FormatterWorker.JavaScriptTokens.SEMICOLON) {
if (this._peek() === FormatterWorker.JavaScriptTokens.VAR || this._peek() === FormatterWorker.JavaScriptTokens.CONST) {
this._parseVariableDeclarations();
if (this._peek() === FormatterWorker.JavaScriptTokens.IN) {
this._builder.addSpace();
this._consume(FormatterWorker.JavaScriptTokens.IN);
this._builder.addSpace();
this._parseExpression();
}
} else
this._parseExpression();
}
if (this._peek() !== FormatterWorker.JavaScriptTokens.RPAREN) {
this._expect(FormatterWorker.JavaScriptTokens.SEMICOLON);
this._builder.addSpace();
if (this._peek() !== FormatterWorker.JavaScriptTokens.SEMICOLON)
this._parseExpression();
this._expect(FormatterWorker.JavaScriptTokens.SEMICOLON);
this._builder.addSpace();
if (this._peek() !== FormatterWorker.JavaScriptTokens.RPAREN)
this._parseExpression();
}
this._expect(FormatterWorker.JavaScriptTokens.RPAREN);
this._parseStatementOrBlock();
},
_parseExpression: function()
{
this._parseAssignmentExpression();
while (this._peek() === FormatterWorker.JavaScriptTokens.COMMA) {
this._expect(FormatterWorker.JavaScriptTokens.COMMA);
this._builder.addSpace();
this._parseAssignmentExpression();
}
},
_parseAssignmentExpression: function()
{
this._parseConditionalExpression();
var token = this._peek();
if (FormatterWorker.JavaScriptTokens.ASSIGN <= token && token <= FormatterWorker.JavaScriptTokens.ASSIGN_MOD) {
this._builder.addSpace();
this._next();
this._builder.addSpace();
this._parseAssignmentExpression();
}
},
_parseConditionalExpression: function()
{
this._parseBinaryExpression();
if (this._peek() === FormatterWorker.JavaScriptTokens.CONDITIONAL) {
this._builder.addSpace();
this._consume(FormatterWorker.JavaScriptTokens.CONDITIONAL);
this._builder.addSpace();
this._parseAssignmentExpression();
this._builder.addSpace();
this._expect(FormatterWorker.JavaScriptTokens.COLON);
this._builder.addSpace();
this._parseAssignmentExpression();
}
},
_parseBinaryExpression: function()
{
this._parseUnaryExpression();
var token = this._peek();
while (FormatterWorker.JavaScriptTokens.OR <= token && token <= FormatterWorker.JavaScriptTokens.IN) {
this._builder.addSpace();
this._next();
this._builder.addSpace();
this._parseBinaryExpression();
token = this._peek();
}
},
_parseUnaryExpression: function()
{
var token = this._peek();
if ((FormatterWorker.JavaScriptTokens.NOT <= token && token <= FormatterWorker.JavaScriptTokens.VOID) || token === FormatterWorker.JavaScriptTokens.ADD || token === FormatterWorker.JavaScriptTokens.SUB || token === FormatterWorker.JavaScriptTokens.INC || token === FormatterWorker.JavaScriptTokens.DEC) {
this._next();
if (token === FormatterWorker.JavaScriptTokens.DELETE || token === FormatterWorker.JavaScriptTokens.TYPEOF || token === FormatterWorker.JavaScriptTokens.VOID)
this._builder.addSpace();
this._parseUnaryExpression();
} else
return this._parsePostfixExpression();
},
_parsePostfixExpression: function()
{
this._parseLeftHandSideExpression();
var token = this._peek();
if (!this._hasLineTerminatorBeforeNext() && (token === FormatterWorker.JavaScriptTokens.INC || token === FormatterWorker.JavaScriptTokens.DEC))
this._next();
},
_parseLeftHandSideExpression: function()
{
if (this._peek() === FormatterWorker.JavaScriptTokens.NEW)
this._parseNewExpression();
else
this._parseMemberExpression();
while (true) {
switch (this._peek()) {
case FormatterWorker.JavaScriptTokens.LBRACK:
this._consume(FormatterWorker.JavaScriptTokens.LBRACK);
this._parseExpression();
this._expect(FormatterWorker.JavaScriptTokens.RBRACK);
break;
case FormatterWorker.JavaScriptTokens.LPAREN:
this._parseArguments();
break;
case FormatterWorker.JavaScriptTokens.PERIOD:
this._consume(FormatterWorker.JavaScriptTokens.PERIOD);
this._expectGeneralIdentifier();
break;
default:
return;
}
}
},
_parseNewExpression: function()
{
this._expect(FormatterWorker.JavaScriptTokens.NEW);
this._builder.addSpace();
if (this._peek() === FormatterWorker.JavaScriptTokens.NEW)
this._parseNewExpression();
else
this._parseMemberExpression();
},
_parseMemberExpression: function()
{
if (this._peek() === FormatterWorker.JavaScriptTokens.FUNCTION) {
this._expect(FormatterWorker.JavaScriptTokens.FUNCTION);
if (this._peek() === FormatterWorker.JavaScriptTokens.IDENTIFIER) {
this._builder.addSpace();
this._expect(FormatterWorker.JavaScriptTokens.IDENTIFIER);
}
this._parseFunctionLiteral();
} else
this._parsePrimaryExpression();
while (true) {
switch (this._peek()) {
case FormatterWorker.JavaScriptTokens.LBRACK:
this._consume(FormatterWorker.JavaScriptTokens.LBRACK);
this._parseExpression();
this._expect(FormatterWorker.JavaScriptTokens.RBRACK);
break;
case FormatterWorker.JavaScriptTokens.PERIOD:
this._consume(FormatterWorker.JavaScriptTokens.PERIOD);
this._expectGeneralIdentifier();
break;
case FormatterWorker.JavaScriptTokens.LPAREN:
this._parseArguments();
break;
default:
return;
}
}
},
_parseDebuggerStatement: function()
{
this._expect(FormatterWorker.JavaScriptTokens.DEBUGGER);
this._expectSemicolon();
},
_parsePrimaryExpression: function()
{
switch (this._peek()) {
case FormatterWorker.JavaScriptTokens.THIS:
return this._consume(FormatterWorker.JavaScriptTokens.THIS);
case FormatterWorker.JavaScriptTokens.NULL_LITERAL:
return this._consume(FormatterWorker.JavaScriptTokens.NULL_LITERAL);
case FormatterWorker.JavaScriptTokens.TRUE_LITERAL:
return this._consume(FormatterWorker.JavaScriptTokens.TRUE_LITERAL);
case FormatterWorker.JavaScriptTokens.FALSE_LITERAL:
return this._consume(FormatterWorker.JavaScriptTokens.FALSE_LITERAL);
case FormatterWorker.JavaScriptTokens.IDENTIFIER:
return this._consume(FormatterWorker.JavaScriptTokens.IDENTIFIER);
case FormatterWorker.JavaScriptTokens.NUMBER:
return this._consume(FormatterWorker.JavaScriptTokens.NUMBER);
case FormatterWorker.JavaScriptTokens.STRING:
return this._consume(FormatterWorker.JavaScriptTokens.STRING);
case FormatterWorker.JavaScriptTokens.ASSIGN_DIV:
return this._parseRegExpLiteral();
case FormatterWorker.JavaScriptTokens.DIV:
return this._parseRegExpLiteral();
case FormatterWorker.JavaScriptTokens.LBRACK:
return this._parseArrayLiteral();
case FormatterWorker.JavaScriptTokens.LBRACE:
return this._parseObjectLiteral();
case FormatterWorker.JavaScriptTokens.LPAREN:
this._consume(FormatterWorker.JavaScriptTokens.LPAREN);
this._parseExpression();
this._expect(FormatterWorker.JavaScriptTokens.RPAREN);
return;
default:
return this._next();
}
},
_parseArrayLiteral: function()
{
this._expect(FormatterWorker.JavaScriptTokens.LBRACK);
this._builder.increaseNestingLevel();
while (this._peek() !== FormatterWorker.JavaScriptTokens.RBRACK) {
if (this._peek() !== FormatterWorker.JavaScriptTokens.COMMA)
this._parseAssignmentExpression();
if (this._peek() !== FormatterWorker.JavaScriptTokens.RBRACK) {
this._expect(FormatterWorker.JavaScriptTokens.COMMA);
this._builder.addSpace();
}
}
this._builder.decreaseNestingLevel();
this._expect(FormatterWorker.JavaScriptTokens.RBRACK);
},
_parseObjectLiteralGetSet: function()
{
var token = this._peek();
if (token === FormatterWorker.JavaScriptTokens.IDENTIFIER || token === FormatterWorker.JavaScriptTokens.NUMBER || token === FormatterWorker.JavaScriptTokens.STRING ||
FormatterWorker.JavaScriptTokens.DELETE <= token && token <= FormatterWorker.JavaScriptTokens.FALSE_LITERAL ||
token === FormatterWorker.JavaScriptTokens.INSTANCEOF || token === FormatterWorker.JavaScriptTokens.IN || token === FormatterWorker.JavaScriptTokens.CONST) {
this._next();
this._parseFunctionLiteral();
}
},
_parseObjectLiteral: function()
{
this._expect(FormatterWorker.JavaScriptTokens.LBRACE);
this._builder.increaseNestingLevel();
while (this._peek() !== FormatterWorker.JavaScriptTokens.RBRACE) {
var token = this._peek();
switch (token) {
case FormatterWorker.JavaScriptTokens.IDENTIFIER:
this._consume(FormatterWorker.JavaScriptTokens.IDENTIFIER);
var name = this._token.value;
if ((name === "get" || name === "set") && this._peek() !== FormatterWorker.JavaScriptTokens.COLON) {
this._builder.addSpace();
this._parseObjectLiteralGetSet();
if (this._peek() !== FormatterWorker.JavaScriptTokens.RBRACE) {
this._expect(FormatterWorker.JavaScriptTokens.COMMA);
}
continue;
}
break;
case FormatterWorker.JavaScriptTokens.STRING:
this._consume(FormatterWorker.JavaScriptTokens.STRING);
break;
case FormatterWorker.JavaScriptTokens.NUMBER:
this._consume(FormatterWorker.JavaScriptTokens.NUMBER);
break;
default:
this._next();
}
this._expect(FormatterWorker.JavaScriptTokens.COLON);
this._builder.addSpace();
this._parseAssignmentExpression();
if (this._peek() !== FormatterWorker.JavaScriptTokens.RBRACE) {
this._expect(FormatterWorker.JavaScriptTokens.COMMA);
}
}
this._builder.decreaseNestingLevel();
this._expect(FormatterWorker.JavaScriptTokens.RBRACE);
},
_parseRegExpLiteral: function()
{
if (this._nextToken.type === "regexp")
this._next();
else {
this._forceRegexp = true;
this._next();
}
},
_parseArguments: function()
{
this._expect(FormatterWorker.JavaScriptTokens.LPAREN);
var done = (this._peek() === FormatterWorker.JavaScriptTokens.RPAREN);
while (!done) {
this._parseAssignmentExpression();
done = (this._peek() === FormatterWorker.JavaScriptTokens.RPAREN);
if (!done) {
this._expect(FormatterWorker.JavaScriptTokens.COMMA);
this._builder.addSpace();
}
}
this._expect(FormatterWorker.JavaScriptTokens.RPAREN);
},
_parseFunctionLiteral: function()
{
this._expect(FormatterWorker.JavaScriptTokens.LPAREN);
var done = (this._peek() === FormatterWorker.JavaScriptTokens.RPAREN);
while (!done) {
this._expect(FormatterWorker.JavaScriptTokens.IDENTIFIER);
done = (this._peek() === FormatterWorker.JavaScriptTokens.RPAREN);
if (!done) {
this._expect(FormatterWorker.JavaScriptTokens.COMMA);
this._builder.addSpace();
}
}
this._expect(FormatterWorker.JavaScriptTokens.RPAREN);
this._builder.addSpace();
this._expect(FormatterWorker.JavaScriptTokens.LBRACE);
this._builder.addNewLine();
this._builder.increaseNestingLevel();
this._parseSourceElements(FormatterWorker.JavaScriptTokens.RBRACE);
this._builder.decreaseNestingLevel();
this._expect(FormatterWorker.JavaScriptTokens.RBRACE);
}
}
/**
* @constructor
* @param {string} content
* @param {!{original: !Array.<number>, formatted: !Array.<number>}} mapping
* @param {number} originalOffset
* @param {number} formattedOffset
* @param {string} indentString
*/
FormatterWorker.JavaScriptFormattedContentBuilder = function(content, mapping, originalOffset, formattedOffset, indentString)
{
this._originalContent = content;
this._originalOffset = originalOffset;
this._lastOriginalPosition = 0;
this._formattedContent = [];
this._formattedContentLength = 0;
this._formattedOffset = formattedOffset;
this._lastFormattedPosition = 0;
this._mapping = mapping;
this._lineNumber = 0;
this._nestingLevel = 0;
this._indentString = indentString;
this._cachedIndents = {};
}
FormatterWorker.JavaScriptFormattedContentBuilder.prototype = {
/**
* @param {!{comments_before: !Array.<string>, line: number, pos: number, endLine: number, nlb: boolean}} token
*/
addToken: function(token)
{
for (var i = 0; i < token.comments_before.length; ++i)
this._addComment(token.comments_before[i]);
while (this._lineNumber < token.line) {
this._addText("\n");
this._addIndent();
this._needNewLine = false;
this._lineNumber += 1;
}
if (this._needNewLine) {
this._addText("\n");
this._addIndent();
this._needNewLine = false;
}
this._addMappingIfNeeded(token.pos);
this._addText(this._originalContent.substring(token.pos, token.endPos));
this._lineNumber = token.endLine;
},
addSpace: function()
{
this._addText(" ");
},
addNewLine: function()
{
this._needNewLine = true;
},
increaseNestingLevel: function()
{
this._nestingLevel += 1;
},
decreaseNestingLevel: function()
{
this._nestingLevel -= 1;
},
/**
* @return {string}
*/
content: function()
{
return this._formattedContent.join("");
},
_addIndent: function()
{
if (this._cachedIndents[this._nestingLevel]) {
this._addText(this._cachedIndents[this._nestingLevel]);
return;
}
var fullIndent = "";
for (var i = 0; i < this._nestingLevel; ++i)
fullIndent += this._indentString;
this._addText(fullIndent);
// Cache a maximum of 20 nesting level indents.
if (this._nestingLevel <= 20)
this._cachedIndents[this._nestingLevel] = fullIndent;
},
_addComment: function(comment)
{
if (this._lineNumber < comment.line) {
for (var j = this._lineNumber; j < comment.line; ++j)
this._addText("\n");
this._lineNumber = comment.line;
this._needNewLine = false;
this._addIndent();
} else
this.addSpace();
this._addMappingIfNeeded(comment.pos);
if (comment.type === "comment1")
this._addText("//");
else
this._addText("/*");
this._addText(comment.value);
if (comment.type !== "comment1") {
this._addText("*/");
var position;
while ((position = comment.value.indexOf("\n", position + 1)) !== -1)
this._lineNumber += 1;
}
},
/**
* @param {string} text
*/
_addText: function(text)
{
this._formattedContent.push(text);
this._formattedContentLength += text.length;
},
/**
* @param {number} originalPosition
*/
_addMappingIfNeeded: function(originalPosition)
{
if (originalPosition - this._lastOriginalPosition === this._formattedContentLength - this._lastFormattedPosition)
return;
this._mapping.original.push(this._originalOffset + originalPosition);
this._lastOriginalPosition = originalPosition;
this._mapping.formatted.push(this._formattedOffset + this._formattedContentLength);
this._lastFormattedPosition = this._formattedContentLength;
}
}
FormatterWorker.JavaScriptTokens = {};
FormatterWorker.JavaScriptTokensByValue = {};
FormatterWorker.JavaScriptTokens.EOS = 0;
FormatterWorker.JavaScriptTokens.LPAREN = FormatterWorker.JavaScriptTokensByValue["("] = 1;
FormatterWorker.JavaScriptTokens.RPAREN = FormatterWorker.JavaScriptTokensByValue[")"] = 2;
FormatterWorker.JavaScriptTokens.LBRACK = FormatterWorker.JavaScriptTokensByValue["["] = 3;
FormatterWorker.JavaScriptTokens.RBRACK = FormatterWorker.JavaScriptTokensByValue["]"] = 4;
FormatterWorker.JavaScriptTokens.LBRACE = FormatterWorker.JavaScriptTokensByValue["{"] = 5;
FormatterWorker.JavaScriptTokens.RBRACE = FormatterWorker.JavaScriptTokensByValue["}"] = 6;
FormatterWorker.JavaScriptTokens.COLON = FormatterWorker.JavaScriptTokensByValue[":"] = 7;
FormatterWorker.JavaScriptTokens.SEMICOLON = FormatterWorker.JavaScriptTokensByValue[";"] = 8;
FormatterWorker.JavaScriptTokens.PERIOD = FormatterWorker.JavaScriptTokensByValue["."] = 9;
FormatterWorker.JavaScriptTokens.CONDITIONAL = FormatterWorker.JavaScriptTokensByValue["?"] = 10;
FormatterWorker.JavaScriptTokens.INC = FormatterWorker.JavaScriptTokensByValue["++"] = 11;
FormatterWorker.JavaScriptTokens.DEC = FormatterWorker.JavaScriptTokensByValue["--"] = 12;
FormatterWorker.JavaScriptTokens.ASSIGN = FormatterWorker.JavaScriptTokensByValue["="] = 13;
FormatterWorker.JavaScriptTokens.ASSIGN_BIT_OR = FormatterWorker.JavaScriptTokensByValue["|="] = 14;
FormatterWorker.JavaScriptTokens.ASSIGN_BIT_XOR = FormatterWorker.JavaScriptTokensByValue["^="] = 15;
FormatterWorker.JavaScriptTokens.ASSIGN_BIT_AND = FormatterWorker.JavaScriptTokensByValue["&="] = 16;
FormatterWorker.JavaScriptTokens.ASSIGN_SHL = FormatterWorker.JavaScriptTokensByValue["<<="] = 17;
FormatterWorker.JavaScriptTokens.ASSIGN_SAR = FormatterWorker.JavaScriptTokensByValue[">>="] = 18;
FormatterWorker.JavaScriptTokens.ASSIGN_SHR = FormatterWorker.JavaScriptTokensByValue[">>>="] = 19;
FormatterWorker.JavaScriptTokens.ASSIGN_ADD = FormatterWorker.JavaScriptTokensByValue["+="] = 20;
FormatterWorker.JavaScriptTokens.ASSIGN_SUB = FormatterWorker.JavaScriptTokensByValue["-="] = 21;
FormatterWorker.JavaScriptTokens.ASSIGN_MUL = FormatterWorker.JavaScriptTokensByValue["*="] = 22;
FormatterWorker.JavaScriptTokens.ASSIGN_DIV = FormatterWorker.JavaScriptTokensByValue["/="] = 23;
FormatterWorker.JavaScriptTokens.ASSIGN_MOD = FormatterWorker.JavaScriptTokensByValue["%="] = 24;
FormatterWorker.JavaScriptTokens.COMMA = FormatterWorker.JavaScriptTokensByValue[","] = 25;
FormatterWorker.JavaScriptTokens.OR = FormatterWorker.JavaScriptTokensByValue["||"] = 26;
FormatterWorker.JavaScriptTokens.AND = FormatterWorker.JavaScriptTokensByValue["&&"] = 27;
FormatterWorker.JavaScriptTokens.BIT_OR = FormatterWorker.JavaScriptTokensByValue["|"] = 28;
FormatterWorker.JavaScriptTokens.BIT_XOR = FormatterWorker.JavaScriptTokensByValue["^"] = 29;
FormatterWorker.JavaScriptTokens.BIT_AND = FormatterWorker.JavaScriptTokensByValue["&"] = 30;
FormatterWorker.JavaScriptTokens.SHL = FormatterWorker.JavaScriptTokensByValue["<<"] = 31;
FormatterWorker.JavaScriptTokens.SAR = FormatterWorker.JavaScriptTokensByValue[">>"] = 32;
FormatterWorker.JavaScriptTokens.SHR = FormatterWorker.JavaScriptTokensByValue[">>>"] = 33;
FormatterWorker.JavaScriptTokens.ADD = FormatterWorker.JavaScriptTokensByValue["+"] = 34;
FormatterWorker.JavaScriptTokens.SUB = FormatterWorker.JavaScriptTokensByValue["-"] = 35;
FormatterWorker.JavaScriptTokens.MUL = FormatterWorker.JavaScriptTokensByValue["*"] = 36;
FormatterWorker.JavaScriptTokens.DIV = FormatterWorker.JavaScriptTokensByValue["/"] = 37;
FormatterWorker.JavaScriptTokens.MOD = FormatterWorker.JavaScriptTokensByValue["%"] = 38;
FormatterWorker.JavaScriptTokens.EQ = FormatterWorker.JavaScriptTokensByValue["=="] = 39;
FormatterWorker.JavaScriptTokens.NE = FormatterWorker.JavaScriptTokensByValue["!="] = 40;
FormatterWorker.JavaScriptTokens.EQ_STRICT = FormatterWorker.JavaScriptTokensByValue["==="] = 41;
FormatterWorker.JavaScriptTokens.NE_STRICT = FormatterWorker.JavaScriptTokensByValue["!=="] = 42;
FormatterWorker.JavaScriptTokens.LT = FormatterWorker.JavaScriptTokensByValue["<"] = 43;
FormatterWorker.JavaScriptTokens.GT = FormatterWorker.JavaScriptTokensByValue[">"] = 44;
FormatterWorker.JavaScriptTokens.LTE = FormatterWorker.JavaScriptTokensByValue["<="] = 45;
FormatterWorker.JavaScriptTokens.GTE = FormatterWorker.JavaScriptTokensByValue[">="] = 46;
FormatterWorker.JavaScriptTokens.INSTANCEOF = FormatterWorker.JavaScriptTokensByValue["instanceof"] = 47;
FormatterWorker.JavaScriptTokens.IN = FormatterWorker.JavaScriptTokensByValue["in"] = 48;
FormatterWorker.JavaScriptTokens.NOT = FormatterWorker.JavaScriptTokensByValue["!"] = 49;
FormatterWorker.JavaScriptTokens.BIT_NOT = FormatterWorker.JavaScriptTokensByValue["~"] = 50;
FormatterWorker.JavaScriptTokens.DELETE = FormatterWorker.JavaScriptTokensByValue["delete"] = 51;
FormatterWorker.JavaScriptTokens.TYPEOF = FormatterWorker.JavaScriptTokensByValue["typeof"] = 52;
FormatterWorker.JavaScriptTokens.VOID = FormatterWorker.JavaScriptTokensByValue["void"] = 53;
FormatterWorker.JavaScriptTokens.BREAK = FormatterWorker.JavaScriptTokensByValue["break"] = 54;
FormatterWorker.JavaScriptTokens.CASE = FormatterWorker.JavaScriptTokensByValue["case"] = 55;
FormatterWorker.JavaScriptTokens.CATCH = FormatterWorker.JavaScriptTokensByValue["catch"] = 56;
FormatterWorker.JavaScriptTokens.CONTINUE = FormatterWorker.JavaScriptTokensByValue["continue"] = 57;
FormatterWorker.JavaScriptTokens.DEBUGGER = FormatterWorker.JavaScriptTokensByValue["debugger"] = 58;
FormatterWorker.JavaScriptTokens.DEFAULT = FormatterWorker.JavaScriptTokensByValue["default"] = 59;
FormatterWorker.JavaScriptTokens.DO = FormatterWorker.JavaScriptTokensByValue["do"] = 60;
FormatterWorker.JavaScriptTokens.ELSE = FormatterWorker.JavaScriptTokensByValue["else"] = 61;
FormatterWorker.JavaScriptTokens.FINALLY = FormatterWorker.JavaScriptTokensByValue["finally"] = 62;
FormatterWorker.JavaScriptTokens.FOR = FormatterWorker.JavaScriptTokensByValue["for"] = 63;
FormatterWorker.JavaScriptTokens.FUNCTION = FormatterWorker.JavaScriptTokensByValue["function"] = 64;
FormatterWorker.JavaScriptTokens.IF = FormatterWorker.JavaScriptTokensByValue["if"] = 65;
FormatterWorker.JavaScriptTokens.NEW = FormatterWorker.JavaScriptTokensByValue["new"] = 66;
FormatterWorker.JavaScriptTokens.RETURN = FormatterWorker.JavaScriptTokensByValue["return"] = 67;
FormatterWorker.JavaScriptTokens.SWITCH = FormatterWorker.JavaScriptTokensByValue["switch"] = 68;
FormatterWorker.JavaScriptTokens.THIS = FormatterWorker.JavaScriptTokensByValue["this"] = 69;
FormatterWorker.JavaScriptTokens.THROW = FormatterWorker.JavaScriptTokensByValue["throw"] = 70;
FormatterWorker.JavaScriptTokens.TRY = FormatterWorker.JavaScriptTokensByValue["try"] = 71;
FormatterWorker.JavaScriptTokens.VAR = FormatterWorker.JavaScriptTokensByValue["var"] = 72;
FormatterWorker.JavaScriptTokens.WHILE = FormatterWorker.JavaScriptTokensByValue["while"] = 73;
FormatterWorker.JavaScriptTokens.WITH = FormatterWorker.JavaScriptTokensByValue["with"] = 74;
FormatterWorker.JavaScriptTokens.NULL_LITERAL = FormatterWorker.JavaScriptTokensByValue["null"] = 75;
FormatterWorker.JavaScriptTokens.TRUE_LITERAL = FormatterWorker.JavaScriptTokensByValue["true"] = 76;
FormatterWorker.JavaScriptTokens.FALSE_LITERAL = FormatterWorker.JavaScriptTokensByValue["false"] = 77;
FormatterWorker.JavaScriptTokens.NUMBER = 78;
FormatterWorker.JavaScriptTokens.STRING = 79;
FormatterWorker.JavaScriptTokens.IDENTIFIER = 80;
FormatterWorker.JavaScriptTokens.CONST = FormatterWorker.JavaScriptTokensByValue["const"] = 81;
FormatterWorker.JavaScriptTokensByType = {
"eof": FormatterWorker.JavaScriptTokens.EOS,
"name": FormatterWorker.JavaScriptTokens.IDENTIFIER,
"num": FormatterWorker.JavaScriptTokens.NUMBER,
"regexp": FormatterWorker.JavaScriptTokens.DIV,
"string": FormatterWorker.JavaScriptTokens.STRING
};
/**
* @constructor
* @param {string} content
*/
FormatterWorker.JavaScriptTokenizer = function(content)
{
this._readNextToken = tokenizerHolder.tokenizer(content);
this._state = this._readNextToken.context();
}
FormatterWorker.JavaScriptTokenizer.prototype = {
/**
* @return {string}
*/
content: function()
{
return this._state.text;
},
/**
* @param {boolean=} forceRegexp
* @return {!{comments_before: !Array.<string>, line: number, pos: number, endLine: number, nlb: boolean, token: number, type: string, value: *}}
*/
next: function(forceRegexp)
{
var uglifyToken = this._readNextToken(forceRegexp);
uglifyToken.endPos = this._state.pos;
uglifyToken.endLine = this._state.line;
uglifyToken.token = this._convertUglifyToken(uglifyToken);
return uglifyToken;
},
/**
* @return {number}
*/
_convertUglifyToken: function(uglifyToken)
{
var token = FormatterWorker.JavaScriptTokensByType[uglifyToken.type];
if (typeof token === "number")
return token;
token = FormatterWorker.JavaScriptTokensByValue[uglifyToken.value];
if (typeof token === "number")
return token;
throw "Unknown token type " + uglifyToken.type;
}
}