Merge the partial_snapshots branch back into bleeding_edge. For...

src/json-delay.js

-// Copyright 2009 the V8 project authors. 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.
-
-var $JSON = global.JSON;
-
-function ParseJSONUnfiltered(text) {
-  var s = $String(text);
-  var f = %CompileString(text, true);
-  return f();
-}
-
-function Revive(holder, name, reviver) {
-  var val = holder[name];
-  if (IS_OBJECT(val)) {
-    if (IS_ARRAY(val)) {
-      var length = val.length;
-      for (var i = 0; i < length; i++) {
-        var newElement = Revive(val, $String(i), reviver);
-        val[i] = newElement;
-      }
-    } else {
-      for (var p in val) {
-        if (ObjectHasOwnProperty.call(val, p)) {
-          var newElement = Revive(val, p, reviver);
-          if (IS_UNDEFINED(newElement)) {
-            delete val[p];
-          } else {
-            val[p] = newElement;
-          }
-        }
-      }
-    }
-  }
-  return reviver.call(holder, name, val);
-}
-
-function JSONParse(text, reviver) {
-  var unfiltered = ParseJSONUnfiltered(text);
-  if (IS_FUNCTION(reviver)) {
-    return Revive({'': unfiltered}, '', reviver);
-  } else {
-    return unfiltered;
-  }
-}
-
-var characterQuoteCache = {
-  '\"': '\\"',
-  '\\': '\\\\',
-  '/': '\\/',
-  '\b': '\\b',
-  '\f': '\\f',
-  '\n': '\\n',
-  '\r': '\\r',
-  '\t': '\\t',
-  '\x0B': '\\u000b'
-};
-
-function QuoteSingleJSONCharacter(c) {
-  if (c in characterQuoteCache) {
-    return characterQuoteCache[c];
-  }
-  var charCode = c.charCodeAt(0);
-  var result;
-  if (charCode < 16) result = '\\u000';
-  else if (charCode < 256) result = '\\u00';
-  else if (charCode < 4096) result = '\\u0';
-  else result = '\\u';
-  result += charCode.toString(16);
-  characterQuoteCache[c] = result;
-  return result;
-}
-
-function QuoteJSONString(str) {
-  var quotable = /[\\\"\x00-\x1f\x80-\uffff]/g;
-  return '"' + str.replace(quotable, QuoteSingleJSONCharacter) + '"';
-}
-
-function StackContains(stack, val) {
-  var length = stack.length;
-  for (var i = 0; i < length; i++) {
-    if (stack[i] === val) {
-      return true;
-    }
-  }
-  return false;
-}
-
-function SerializeArray(value, replacer, stack, indent, gap) {
-  if (StackContains(stack, value)) {
-    throw MakeTypeError('circular_structure', []);
-  }
-  stack.push(value);
-  var stepback = indent;
-  indent += gap;
-  var partial = [];
-  var len = value.length;
-  for (var i = 0; i < len; i++) {
-    var strP = JSONSerialize($String(i), value, replacer, stack,
-                             indent, gap);
-    if (IS_UNDEFINED(strP)) {
-      strP = "null";
-    }
-    partial.push(strP);
-  }
-  var final;
-  if (gap == "") {
-    final = "[" + partial.join(",") + "]";
-  } else if (partial.length > 0) {
-    var separator = ",\n" + indent;
-    final = "[\n" + indent + partial.join(separator) + "\n" +
-        stepback + "]";
-  } else {
-    final = "[]";
-  }
-  stack.pop();
-  return final;
-}
-
-function SerializeObject(value, replacer, stack, indent, gap) {
-  if (StackContains(stack, value)) {
-    throw MakeTypeError('circular_structure', []);
-  }
-  stack.push(value);
-  var stepback = indent;
-  indent += gap;
-  var partial = [];
-  if (IS_ARRAY(replacer)) {
-    var length = replacer.length;
-    for (var i = 0; i < length; i++) {
-      if (ObjectHasOwnProperty.call(replacer, i)) {
-        var p = replacer[i];
-        var strP = JSONSerialize(p, value, replacer, stack, indent, gap);
-        if (!IS_UNDEFINED(strP)) {
-          var member = QuoteJSONString(p) + ":";
-          if (gap != "") member += " ";
-          member += strP;
-          partial.push(member);
-        }
-      }
-    }
-  } else {
-    for (var p in value) {
-      if (ObjectHasOwnProperty.call(value, p)) {
-        var strP = JSONSerialize(p, value, replacer, stack, indent, gap);
-        if (!IS_UNDEFINED(strP)) {
-          var member = QuoteJSONString(p) + ":";
-          if (gap != "") member += " ";
-          member += strP;
-          partial.push(member);
-        }
-      }
-    }
-  }
-  var final;
-  if (gap == "") {
-    final = "{" + partial.join(",") + "}";
-  } else if (partial.length > 0) {
-    var separator = ",\n" + indent;
-    final = "{\n" + indent + partial.join(separator) + "\n" +
-        stepback + "}";
-  } else {
-    final = "{}";
-  }
-  stack.pop();
-  return final;
-}
-
-function JSONSerialize(key, holder, replacer, stack, indent, gap) {
-  var value = holder[key];
-  if (IS_OBJECT(value) && value) {
-    var toJSON = value.toJSON;
-    if (IS_FUNCTION(toJSON)) {
-      value = toJSON.call(value, key);
-    }
-  }
-  if (IS_FUNCTION(replacer)) {
-    value = replacer.call(holder, key, value);
-  }
-  // Unwrap value if necessary
-  if (IS_OBJECT(value)) {
-    if (IS_NUMBER_WRAPPER(value)) {
-      value = $Number(value);
-    } else if (IS_STRING_WRAPPER(value)) {
-      value = $String(value);
-    } else if (IS_BOOLEAN_WRAPPER(value)) {
-      value = $Boolean(value);
-    }
-  }
-  switch (typeof value) {
-    case "string":
-      return QuoteJSONString(value);
-    case "object":
-      if (!value) {
-        return "null";
-      } else if (IS_ARRAY(value)) {
-        return SerializeArray(value, replacer, stack, indent, gap);
-      } else {
-        return SerializeObject(value, replacer, stack, indent, gap);
-      }
-    case "number":
-      return $isFinite(value) ? $String(value) : "null";
-    case "boolean":
-      return value ? "true" : "false";
-  }
-}
-
-function JSONStringify(value, replacer, space) {
-  var stack = [];
-  var indent = "";
-  if (IS_OBJECT(space)) {
-    // Unwrap 'space' if it is wrapped
-    if (IS_NUMBER_WRAPPER(space)) {
-      space = $Number(space);
-    } else if (IS_STRING_WRAPPER(space)) {
-      space = $String(space);
-    }
-  }
-  var gap;
-  if (IS_NUMBER(space)) {
-    space = $Math.min(space, 10);
-    gap = "";
-    for (var i = 0; i < space; i++) {
-      gap += " ";
-    }
-  } else if (IS_STRING(space)) {
-    if (space.length > 10) {
-      gap = space.substring(0, 10);
-    } else {
-      gap = space;
-    }
-  } else {
-    gap = "";
-  }
-  return JSONSerialize('', {'': value}, replacer, stack, indent, gap);
-}
-
-function SetupJSON() {
-  InstallFunctions($JSON, DONT_ENUM, $Array(
-    "parse", JSONParse,
-    "stringify", JSONStringify
-  ));
-}
-
-SetupJSON();