diff options
Diffstat (limited to 'mojo/public/js/tests/validation_test_input_parser.js')
-rw-r--r-- | mojo/public/js/tests/validation_test_input_parser.js | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/mojo/public/js/tests/validation_test_input_parser.js b/mojo/public/js/tests/validation_test_input_parser.js deleted file mode 100644 index f5a57f9..0000000 --- a/mojo/public/js/tests/validation_test_input_parser.js +++ /dev/null @@ -1,299 +0,0 @@ -// Copyright 2014 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -// Support for parsing binary sequences encoded as readable strings -// or ".data" files. The input format is described here: -// mojo/public/cpp/bindings/tests/validation_test_input_parser.h - -define([ - "mojo/public/js/buffer" - ], function(buffer) { - - // Files and Lines represent the raw text from an input string - // or ".data" file. - - function InputError(message, line) { - this.message = message; - this.line = line; - } - - InputError.prototype.toString = function() { - var s = 'Error: ' + this.message; - if (this.line) - s += ', at line ' + - (this.line.number + 1) + ': "' + this.line.contents + '"'; - return s; - } - - function File(contents) { - this.contents = contents; - this.index = 0; - this.lineNumber = 0; - } - - File.prototype.endReached = function() { - return this.index >= this.contents.length; - } - - File.prototype.nextLine = function() { - if (this.endReached()) - return null; - var start = this.index; - var end = this.contents.indexOf('\n', start); - if (end == -1) - end = this.contents.length; - this.index = end + 1; - return new Line(this.contents.substring(start, end), this.lineNumber++); - } - - function Line(contents, number) { - var i = contents.indexOf('//'); - var s = (i == -1) ? contents.trim() : contents.substring(0, i).trim(); - this.contents = contents; - this.items = (s.length > 0) ? s.split(/\s+/) : []; - this.index = 0; - this.number = number; - } - - Line.prototype.endReached = function() { - return this.index >= this.items.length; - } - - var ITEM_TYPE_SIZES = { - u1: 1, u2: 2, u4: 4, u8: 8, s1: 1, s2: 2, s4: 4, s8: 8, b: 1, f: 4, d: 8, - dist4: 4, dist8: 8, anchr: 0, handles: 0 - }; - - function isValidItemType(type) { - return ITEM_TYPE_SIZES[type] !== undefined; - } - - Line.prototype.nextItem = function() { - if (this.endReached()) - return null; - - var itemString = this.items[this.index++]; - var type = 'u1'; - var value = itemString; - - if (itemString.charAt(0) == '[') { - var i = itemString.indexOf(']'); - if (i != -1 && i + 1 < itemString.length) { - type = itemString.substring(1, i); - value = itemString.substring(i + 1); - } else { - throw new InputError('invalid item', this); - } - } - if (!isValidItemType(type)) - throw new InputError('invalid item type', this); - - return new Item(this, type, value); - } - - // The text for each whitespace delimited binary data "item" is represented - // by an Item. - - function Item(line, type, value) { - this.line = line; - this.type = type; - this.value = value; - this.size = ITEM_TYPE_SIZES[type]; - } - - Item.prototype.isFloat = function() { - return this.type == 'f' || this.type == 'd'; - } - - Item.prototype.isInteger = function() { - return ['u1', 'u2', 'u4', 'u8', - 's1', 's2', 's4', 's8'].indexOf(this.type) != -1; - } - - Item.prototype.isNumber = function() { - return this.isFloat() || this.isInteger(); - } - - Item.prototype.isByte = function() { - return this.type == 'b'; - } - - Item.prototype.isDistance = function() { - return this.type == 'dist4' || this.type == 'dist8'; - } - - Item.prototype.isAnchor = function() { - return this.type == 'anchr'; - } - - Item.prototype.isHandles = function() { - return this.type == 'handles'; - } - - // A TestMessage represents the complete binary message loaded from an input - // string or ".data" file. The parseTestMessage() function below constructs - // a TestMessage from a File. - - function TestMessage(byteLength) { - this.index = 0; - this.buffer = new buffer.Buffer(byteLength); - this.distances = {}; - this.handleCount = 0; - } - - function checkItemNumberValue(item, n, min, max) { - if (n < min || n > max) - throw new InputError('invalid item value', item.line); - } - - TestMessage.prototype.addNumber = function(item) { - var n = item.isInteger() ? parseInt(item.value) : parseFloat(item.value); - if (Number.isNaN(n)) - throw new InputError("can't parse item value", item.line); - - switch(item.type) { - case 'u1': - checkItemNumberValue(item, n, 0, 0xFF); - this.buffer.setUint8(this.index, n); - break; - case 'u2': - checkItemNumberValue(item, n, 0, 0xFFFF); - this.buffer.setUint16(this.index, n); - break; - case 'u4': - checkItemNumberValue(item, n, 0, 0xFFFFFFFF); - this.buffer.setUint32(this.index, n); - break; - case 'u8': - checkItemNumberValue(item, n, 0, Number.MAX_SAFE_INTEGER); - this.buffer.setUint64(this.index, n); - break; - case 's1': - checkItemNumberValue(item, n, -128, 127); - this.buffer.setInt8(this.index, n); - break; - case 's2': - checkItemNumberValue(item, n, -32768, 32767); - this.buffer.setInt16(this.index, n); - break; - case 's4': - checkItemNumberValue(item, n, -2147483648, 2147483647); - this.buffer.setInt32(this.index, n); - break; - case 's8': - checkItemNumberValue(item, n, - Number.MIN_SAFE_INTEGER, - Number.MAX_SAFE_INTEGER); - this.buffer.setInt64(this.index, n); - break; - case 'f': - this.buffer.setFloat32(this.index, n); - break; - case 'd': - this.buffer.setFloat64(this.index, n); - break; - - default: - throw new InputError('unrecognized item type', item.line); - } - } - - TestMessage.prototype.addByte = function(item) { - if (!/^[01]{8}$/.test(item.value)) - throw new InputError('invalid byte item value', item.line); - function b(i) { - return (item.value.charAt(7 - i) == '1') ? 1 << i : 0; - } - var n = b(0) | b(1) | b(2) | b(3) | b(4) | b(5) | b(6) | b(7); - this.buffer.setUint8(this.index, n); - } - - TestMessage.prototype.addDistance = function(item) { - if (this.distances[item.value]) - throw new InputError('duplicate distance item', item.line); - this.distances[item.value] = {index: this.index, item: item}; - } - - TestMessage.prototype.addAnchor = function(item) { - var dist = this.distances[item.value]; - if (!dist) - throw new InputError('unmatched anchor item', item.line); - delete this.distances[item.value]; - - var n = this.index - dist.index; - // TODO(hansmuller): validate n - - if (dist.item.type == 'dist4') - this.buffer.setUint32(dist.index, n); - else if (dist.item.type == 'dist8') - this.buffer.setUint64(dist.index, n); - else - throw new InputError('unrecognzed distance item type', dist.item.line); - } - - TestMessage.prototype.addHandles = function(item) { - this.handleCount = parseInt(item.value); - if (Number.isNaN(this.handleCount)) - throw new InputError("can't parse handleCount", item.line); - } - - TestMessage.prototype.addItem = function(item) { - if (item.isNumber()) - this.addNumber(item); - else if (item.isByte()) - this.addByte(item); - else if (item.isDistance()) - this.addDistance(item); - else if (item.isAnchor()) - this.addAnchor(item); - else if (item.isHandles()) - this.addHandles(item); - else - throw new InputError('unrecognized item type', item.line); - - this.index += item.size; - } - - TestMessage.prototype.unanchoredDistances = function() { - var names = null; - for (var name in this.distances) { - if (this.distances.hasOwnProperty(name)) - names = (names === null) ? name : names + ' ' + name; - } - return names; - } - - function parseTestMessage(text) { - var file = new File(text); - var items = []; - var messageLength = 0; - while(!file.endReached()) { - var line = file.nextLine(); - while (!line.endReached()) { - var item = line.nextItem(); - if (item.isHandles() && items.length > 0) - throw new InputError('handles item is not first'); - messageLength += item.size; - items.push(item); - } - } - - var msg = new TestMessage(messageLength); - for (var i = 0; i < items.length; i++) - msg.addItem(items[i]); - - if (messageLength != msg.index) - throw new InputError('failed to compute message length'); - var names = msg.unanchoredDistances(); - if (names) - throw new InputError('no anchors for ' + names, 0); - - return msg; - } - - var exports = {}; - exports.parseTestMessage = parseTestMessage; - exports.InputError = InputError; - return exports; -}); |