nashorn/samples/prettyprinter.js
author cjplummer
Mon, 25 Apr 2016 12:11:58 -0700
changeset 38079 fd24ad51113a
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child 39662 e2b36a3779b9
permissions -rw-r--r--
8154379: MIN_STACK_SHADOW_PAGES should equal DEFAULT_STACK_SHADOW_PAGES on aarch64 Summary: Undid previous change that had set it to 1. Reviewed-by: enevill, adinn, aph
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/*
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 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 *   - Redistributions of source code must retain the above copyright
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 *     notice, this list of conditions and the following disclaimer.
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 *
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 *   - Redistributions in binary form must reproduce the above copyright
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 *     notice, this list of conditions and the following disclaimer in the
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 *     documentation and/or other materials provided with the distribution.
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 *
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 *   - Neither the name of Oracle nor the names of its
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 *     contributors may be used to endorse or promote products derived
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 *     from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/**
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 * This script is a AST pretty printer for ECMAScript. It uses
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 * Nashorn parser API to parser given script and uses tree visitor
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 * to pretty print the AST to stdout as a script string.
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 */
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var File = Java.type("java.io.File");
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var file = arguments.length == 0? new File(__FILE__) : new File(arguments[0]);
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if (! file.isFile()) {
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    print(arguments[0] + " is not a file");
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    exit(1);
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}
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// Java classes used
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var ArrayAccess = Java.type("jdk.nashorn.api.tree.ArrayAccessTree");
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var Block = Java.type("jdk.nashorn.api.tree.BlockTree");
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var FunctionDeclaration = Java.type("jdk.nashorn.api.tree.FunctionDeclarationTree");
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var FunctionExpression = Java.type("jdk.nashorn.api.tree.FunctionExpressionTree");
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var Identifier = Java.type("jdk.nashorn.api.tree.IdentifierTree");
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var Kind = Java.type("jdk.nashorn.api.tree.Tree.Kind");
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var MemberSelect = Java.type("jdk.nashorn.api.tree.MemberSelectTree");
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var ObjectLiteral = Java.type("jdk.nashorn.api.tree.ObjectLiteralTree");
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var Parser = Java.type("jdk.nashorn.api.tree.Parser");
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var SimpleTreeVisitor = Java.type("jdk.nashorn.api.tree.SimpleTreeVisitorES5_1");
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var System = Java.type("java.lang.System");
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// make a nashorn parser
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var parser = Parser.create("-scripting", "--const-as-var");
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// symbols for nashorn operators
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var operatorSymbols = {
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    POSTFIX_INCREMENT: "++", 
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    POSTFIX_DECREMENT: "--",
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    PREFIX_INCREMENT: "++", 
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    PREFIX_DECREMENT: "--",
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    UNARY_PLUS: "+",
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    UNARY_MINUS: "-",
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    BITWISE_COMPLEMENT: "~",
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    LOGICAL_COMPLEMENT: "!",
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    DELETE: "delete ",
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    TYPEOF: "typeof ",
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    VOID: "void ", 
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    COMMA: ",",
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    MULTIPLY: "*", 
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    DIVIDE: "/", 
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    REMINDER: "%", 
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    PLUS: "+",
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    MINUS: "-",
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    LEFT_SHIFT: "<<",
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    RIGHT_SHIFT: ">>",
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    UNSIGNED_RIGHT_SHIFT: ">>>",
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    LESS_THAN: "<",
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    GREATER_THAN: ">",
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    LESS_THAN_EQUAL: "<=",
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    GREATER_THAN_EQUAL: ">=", 
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    IN: "in", 
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    EQUAL_TO: "==",
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    NOT_EQUAL_TO: "!=",
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    STRICT_EQUAL_TO: "===",
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    STRICT_NOT_EQUAL_TO: "!==",
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    AND: "&",
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    XOR: "^",
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    OR: "|", 
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    CONDITIONAL_AND: "&&", 
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    CONDITIONAL_OR: "||",
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    MULTIPLY_ASSIGNMENT: "*=",
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    DIVIDE_ASSIGNMENT: "/=",
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    REMINDER_ASSIGNMENT: "%=",
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    PLUS_ASSIGNMENT: "+=",
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    MINUS_ASSIGNMENT: "-=",
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    LEFT_SHIFT_ASSIGNMENT: "<<=",
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    RIGHT_SHIFT_ASSIGNMENT: ">>=",
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    UNSIGNED_RIGHT_SHIFT_ASSIGNMENT: ">>>=",
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    AND_ASSIGNMENT: "&=",
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    XOR_ASSIGNMENT: "^=",
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    OR_ASSIGNMENT: "|="
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};
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function operatorOf(kind) {
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     var name = kind.name();
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     if (name in operatorSymbols) {
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         return operatorSymbols[name];
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     }
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     throw "invalid operator: " + name;
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}
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var gprint = print;
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function prettyPrint(file) {
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    var ast = parser.parse(file, gprint);
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    if (!ast) {
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        // failed to parse. don't print anything!
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        return;
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    }
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    // AST visitor
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    var visitor;
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    // current indent level
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    var indentLevel = 0;
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    var out = System.out;
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    function print(obj) {
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        out.print(String(obj));
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    }
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    function println(obj) {
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        obj?  out.println(String(obj)) : out.println();
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    }
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    // semicolon and end-of-line
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    function eol() {
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        println(";");
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    }
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    // print indentation - 4 spaces per level
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    function indent() {
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        for (var i = 0; i < indentLevel; i++) {
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            // 4 spaces per indent level
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            print("    ");
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        }
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    }
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   153
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   154
    // escape string literals
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parents:
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   155
    function escapeString(str) {
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   156
        // FIXME: incomplete, revisit again!
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   157
        return str.replace(/[\\"']/g, '\\$&')
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   158
    }
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parents:
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   159
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   160
    // print a single statement (could be a block too)
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parents:
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   161
    function printStatement(stat, extra, end) {
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   162
        if (stat instanceof Block) {
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   163
            println(" {");
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   164
            printStatements(stat.statements, extra);
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   165
            indent();
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   166
            print('}');
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   167
            typeof end != "undefined"? print(end) : println();
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parents:
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   168
        } else {
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   169
            println();
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   170
            indentLevel++;
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parents:
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   171
            try {
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   172
                stat.accept(visitor, extra);
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   173
            } finally {
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   174
                indentLevel--;
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   175
            }
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   176
        }
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   177
    }
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parents:
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   178
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   179
    // print a statement list
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   180
    function printStatements(stats, extra) {
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   181
        indentLevel++;
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   182
        try {
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   183
            for each (var stat in stats) {
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   184
                stat.accept(visitor, extra);
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   185
            }
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parents:
diff changeset
   186
        } finally {
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   187
            indentLevel--;
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parents:
diff changeset
   188
        }
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parents:
diff changeset
   189
    }
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parents:
diff changeset
   190
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   191
    // function arguments, array literal elements.
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parents:
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   192
    function printCommaList(args, extra) {
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   193
        var len = args.length;
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   194
        for (var i = 0; i < len; i++) {
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   195
            args[i].accept(visitor, extra);
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diff changeset
   196
            if (i != len - 1) {
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parents:
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   197
                print(", ");
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parents:
diff changeset
   198
            }
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   199
        }
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parents:
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   200
    }
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parents:
diff changeset
   201
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parents:
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   202
    // print function declarations and expressions
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parents:
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   203
    function printFunction(func, extra, end) {
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   204
        // extra lines around function declarations for clarity
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   205
        var funcDecl = (func instanceof FunctionDeclaration);
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parents:
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   206
        if (funcDecl) {
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   207
            println();
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   208
            indent();
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parents:
diff changeset
   209
        }
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   210
        print("function ");
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parents:
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   211
        if (func.name) {
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   212
            print(func.name);
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parents:
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   213
        }
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   214
        printFunctionBody(func, extra, end);
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parents:
diff changeset
   215
        if (funcDecl) {
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sundar
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diff changeset
   216
            println();
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sundar
parents:
diff changeset
   217
        }
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parents:
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   218
    }
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parents:
diff changeset
   219
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parents:
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   220
    // print function declaration/expression body
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sundar
parents:
diff changeset
   221
    function printFunctionBody(func, extra, end) {
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   222
        print('(');
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   223
        var params = func.parameters;
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   224
        if (params) {
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sundar
parents:
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   225
            printCommaList(params);
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sundar
parents:
diff changeset
   226
        }
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   227
        print(')');
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   228
        printStatement(func.body, extra, end);
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parents:
diff changeset
   229
    }
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parents:
diff changeset
   230
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   231
    // print object literal property
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parents:
diff changeset
   232
    function printProperty(node, extra, comma) {
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   233
        var key = node.key;
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   234
        var val = node.value;
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   235
        var getter = node.getter;
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parents:
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   236
        var setter = node.setter;
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parents:
diff changeset
   237
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   238
        if (getter) {
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sundar
parents:
diff changeset
   239
            print("get ");
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sundar
parents:
diff changeset
   240
        } else if (setter) {
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sundar
parents:
diff changeset
   241
            print("set ");
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parents:
diff changeset
   242
        }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
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parents:
diff changeset
   243
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   244
        if (typeof key == "string") {
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sundar
parents:
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   245
            print(key);
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sundar
parents:
diff changeset
   246
        } else {
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   247
            key.accept(visitor, extra);
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parents:
diff changeset
   248
        }
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parents:
diff changeset
   249
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   250
        if (val) {
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sundar
parents:
diff changeset
   251
            print(": ");
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sundar
parents:
diff changeset
   252
            if (val instanceof FunctionExpression) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
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   253
                printFunction(val, extra, comma? ',' : undefined);
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sundar
parents:
diff changeset
   254
            } else {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   255
                val.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   256
                if (comma) print(',');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   257
            }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   258
        } else if (getter) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   259
            printFunctionBody(getter, extra, comma? ',' : undefined);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   260
        } else if (setter) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   261
            printFunctionBody(setter, extra, comma? ',' : undefined);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   262
        }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   263
    }
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sundar
parents:
diff changeset
   264
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
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parents:
diff changeset
   265
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
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diff changeset
   266
    ast.accept(visitor = new (Java.extend(SimpleTreeVisitor)) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   267
         visitAssignment: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
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diff changeset
   268
             node.variable.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   269
             print(" = ");
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sundar
parents:
diff changeset
   270
             node.expression.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   271
         },
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parents:
diff changeset
   272
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
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diff changeset
   273
         visitCompoundAssignment: function(node, extra) {
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sundar
parents:
diff changeset
   274
             node.variable.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   275
             print(' ' + operatorOf(node.kind) + ' ');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   276
             node.expression.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   277
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   278
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
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diff changeset
   279
         visitBinary: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   280
             node.leftOperand.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   281
             print(' ' + operatorOf(node.kind) + ' ');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   282
             node.rightOperand.accept(visitor, extra);
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sundar
parents:
diff changeset
   283
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   284
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   285
         visitBlock: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   286
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   287
             println('{');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   288
             printStatements(node.statements, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   289
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   290
             println('}');
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sundar
parents:
diff changeset
   291
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   292
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   293
         visitBreak: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   294
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   295
             print("break");
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sundar
parents:
diff changeset
   296
             if (node.label) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   297
                 print(' ' + node.label);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   298
             }
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sundar
parents:
diff changeset
   299
             eol();
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sundar
parents:
diff changeset
   300
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   301
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
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   302
         visitCase: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   303
             var expr = node.expression;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   304
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   305
             if (expr) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   306
                 print("case ");
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sundar
parents:
diff changeset
   307
                 expr.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   308
                 println(':');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   309
             } else {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   310
                 println("default:");
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sundar
parents:
diff changeset
   311
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   312
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   313
             printStatements(node.statements, extra);
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sundar
parents:
diff changeset
   314
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   315
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   316
         visitCatch: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   317
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   318
             print("catch (" + node.parameter.name);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   319
             var cond = node.condition;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   320
             if (cond) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   321
                 print(" if ");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   322
                 cond.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   323
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   324
             print(')');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   325
             printStatement(node.block);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   326
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   327
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   328
         visitConditionalExpression: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   329
             print('(');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   330
             node.condition.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   331
             print(" ? ");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   332
             node.trueExpression.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   333
             print(" : ");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   334
             node.falseExpression.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   335
             print(')');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   336
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   337
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   338
         visitContinue: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   339
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   340
             print("continue");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   341
             if (node.label) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   342
                 print(' ' + node.label);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   343
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   344
             eol();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   345
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   346
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   347
         visitDebugger: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   348
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   349
             print("debugger");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   350
             eol();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   351
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   352
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   353
         visitDoWhileLoop: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   354
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   355
             print("do");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   356
             printStatement(node.statement, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   357
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   358
             print("while (");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   359
             node.condition.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   360
             print(')');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   361
             eol();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   362
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   363
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   364
         visitExpressionStatement: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   365
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   366
             var expr = node.expression;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   367
             var objLiteral = expr instanceof ObjectLiteral;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   368
             if (objLiteral) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   369
                 print('(');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   370
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   371
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   372
             expr.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   373
             if (objLiteral) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   374
                 print(')');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   375
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   376
             eol();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   377
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   378
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   379
         visitForLoop: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   380
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   381
             print("for (");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   382
             if (node.initializer) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   383
                node.initializer.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   384
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   385
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   386
             print(';');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   387
             if (node.condition) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   388
                node.condition.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   389
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   390
             print(';');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   391
             if (node.update) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   392
                node.update.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   393
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   394
             print(')');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   395
             printStatement(node.statement);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   396
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   397
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   398
         visitForInLoop: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   399
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   400
             print("for ");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   401
             if (node.forEach) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   402
                 print("each ");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   403
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   404
             print('(');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   405
             node.variable.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   406
             print(" in ");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   407
             node.expression.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   408
             print(')');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   409
             printStatement(node.statement);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   410
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   411
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   412
         visitFunctionCall: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   413
             var func = node.functionSelect;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   414
             // We need parens around function selected
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   415
             // in many non-simple cases. Eg. function
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   416
             // expression created and called immediately.
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   417
             // Such parens are not preserved in AST and so
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   418
             // introduce here.
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   419
             var simpleFunc =
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   420
                 (func instanceof ArrayAccess) ||
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   421
                 (func instanceof Identifier) ||
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   422
                 (func instanceof MemberSelect);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   423
             if (! simpleFunc) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   424
                 print('(');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   425
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   426
             func.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   427
             if (! simpleFunc) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   428
                 print(')');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   429
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   430
             print('(');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   431
             printCommaList(node.arguments, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   432
             print(')');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   433
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   434
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   435
         visitFunctionDeclaration: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   436
             printFunction(node, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   437
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   438
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   439
         visitFunctionExpression: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   440
             printFunction(node, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   441
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   442
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   443
         visitIdentifier: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   444
             print(node.name);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   445
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   446
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   447
         visitIf: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   448
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   449
             print("if (");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   450
             node.condition.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   451
             print(')');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   452
             printStatement(node.thenStatement);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   453
             var el = node.elseStatement;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   454
             if (el) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   455
                 indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   456
                 print("else");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   457
                 printStatement(el);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   458
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   459
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   460
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   461
         visitArrayAccess: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   462
             node.expression.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   463
             print('[');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   464
             node.index.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   465
             print(']');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   466
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   467
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   468
         visitArrayLiteral: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   469
             print('[');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   470
             printCommaList(node.elements);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   471
             print(']');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   472
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   473
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   474
         visitLabeledStatement: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   475
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   476
             print(node.label);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   477
             print(':');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   478
             printStatement(node.statement);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   479
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   480
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   481
         visitLiteral: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   482
             var val = node.value;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   483
             if (typeof val == "string") {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   484
                 print("'" + escapeString(val) + "'");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   485
             } else {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   486
                 print(val);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   487
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   488
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   489
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   490
         visitParenthesized: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   491
             print('(');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   492
             node.expression.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   493
             print(')');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   494
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   495
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   496
         visitReturn: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   497
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   498
             print("return");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   499
             if (node.expression) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   500
                 print(' ');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   501
                 node.expression.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   502
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   503
             eol();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   504
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   505
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   506
         visitMemberSelect: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   507
             node.expression.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   508
             print('.' + node.identifier);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   509
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   510
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   511
         visitNew: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   512
             print("new ");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   513
             node.constructorExpression.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   514
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   515
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   516
         visitObjectLiteral: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   517
             println('{');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   518
             indentLevel++;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   519
             try {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   520
                 var props = node.properties;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   521
                 var len = props.length;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   522
                 for (var p = 0; p < len; p++) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   523
                     var last = (p == len - 1);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   524
                     indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   525
                     printProperty(props[p], extra, !last);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   526
                     println();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   527
                 }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   528
             } finally {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   529
                 indentLevel--;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   530
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   531
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   532
             print('}');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   533
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   534
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   535
         visitRegExpLiteral: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   536
             print('/' + node.pattern + '/');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   537
             print(node.options);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   538
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   539
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   540
         visitEmptyStatement: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   541
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   542
             eol();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   543
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   544
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   545
         visitSwitch: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   546
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   547
             print("switch (");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   548
             node.expression.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   549
             println(") {");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   550
             indentLevel++;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   551
             try {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   552
                 for each (var c in node.cases) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   553
                     c.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   554
                 }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   555
             } finally {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   556
                 indentLevel--;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   557
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   558
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   559
             println('}');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   560
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   561
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   562
         visitThrow: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   563
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   564
             print("throw ");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   565
             node.expression.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   566
             eol();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   567
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   568
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   569
         visitCompilationUnit: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   570
             for each (var stat in node.sourceElements) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   571
                 stat.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   572
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   573
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   574
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   575
         visitTry: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   576
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   577
             print("try");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   578
             printStatement(node.block);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   579
             var catches = node.catches;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   580
             for each (var c in catches) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   581
                 c.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   582
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   583
             var finallyBlock = node.finallyBlock;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   584
             if (finallyBlock) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   585
                 indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   586
                 print("finally");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   587
                 printStatement(finallyBlock);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   588
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   589
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   590
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   591
         visitInstanceOf: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   592
             node.expression.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   593
             print(" instanceof ");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   594
             node.type.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   595
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   596
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   597
         visitUnary: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   598
             var kind = node.kind;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   599
             var prefix = kind != Kind.POSTFIX_INCREMENT && kind != Kind.POSTFIX_DECREMENT;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   600
             if (prefix) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   601
                 print(operatorOf(kind));
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   602
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   603
             node.expression.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   604
             if (!prefix) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   605
                 print(operatorOf(kind));
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   606
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   607
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   608
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   609
         visitVariable: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   610
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   611
             print("var " + node.name);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   612
             var init = node.initializer;
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   613
             if (init) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   614
                 print(" = ");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   615
                 if (init instanceof FunctionExpression) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   616
                     printFunction(init, extra, "");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   617
                 } else {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   618
                     init.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   619
                 }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   620
             }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   621
             eol();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   622
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   623
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   624
         visitWhileLoop: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   625
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   626
             print("while (");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   627
             node.condition.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   628
             print(')');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   629
             printStatement(node.statement);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   630
         },
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   631
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   632
         visitWith: function(node, extra) {
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   633
             indent();
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   634
             print("with (");
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   635
             node.scope.accept(visitor, extra);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   636
             print(')');
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   637
             printStatement(node.statement);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   638
         }
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   639
    }, null);
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   640
}
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   641
efc10427bddc 8006996: Add a pretty printer that prints script source in nice form
sundar
parents:
diff changeset
   642
prettyPrint(file);