diff options
Diffstat (limited to 'js/message.js')
| -rw-r--r-- | js/message.js | 284 |
1 files changed, 248 insertions, 36 deletions
diff --git a/js/message.js b/js/message.js index cef9aefd..813e6b8c 100644 --- a/js/message.js +++ b/js/message.js @@ -39,8 +39,8 @@ goog.provide('jspb.Message'); goog.require('goog.array'); goog.require('goog.asserts'); +goog.require('goog.crypt.base64'); goog.require('goog.json'); -goog.require('goog.object'); // Not needed in compilation units that have no protos with xids. goog.forwardDeclare('xid.String'); @@ -120,6 +120,14 @@ jspb.ExtensionFieldInfo = function(fieldNumber, fieldName, ctor, toObjectFn, /** + * @return {boolean} Does this field represent a sub Message? + */ +jspb.ExtensionFieldInfo.prototype.isMessageType = function() { + return !!this.ctor; +}; + + +/** * Base class for all JsPb messages. * @constructor * @struct @@ -166,6 +174,14 @@ goog.define('jspb.Message.MINIMIZE_MEMORY_ALLOCATIONS', COMPILED); /** + * Does this browser support Uint8Aray typed arrays? + * @type {boolean} + * @private + */ +jspb.Message.SUPPORTS_UINT8ARRAY_ = (typeof Uint8Array == 'function'); + + +/** * The internal data array. * @type {!Array} * @protected @@ -211,6 +227,14 @@ jspb.Message.prototype.messageId_; /** + * Repeated float or double fields which have been converted to include only + * numbers and not strings holding "NaN", "Infinity" and "-Infinity". + * @private {!Object<number,boolean>|undefined} + */ +jspb.Message.prototype.convertedFloatingPointFields_; + + +/** * The xid of this proto type (The same for all instances of a proto). Provides * a way to identify a proto by stable obfuscated name. * @see {xid}. @@ -284,6 +308,8 @@ jspb.Message.initialize = function( msg.arrayIndexOffset_ = messageId === 0 ? -1 : 0; msg.array = data; jspb.Message.materializeExtensionObject_(msg, suggestedPivot); + msg.convertedFloatingPointFields_ = {}; + if (repeatedFields) { for (var i = 0; i < repeatedFields.length; i++) { var fieldNumber = repeatedFields[i]; @@ -419,8 +445,9 @@ jspb.Message.toObjectList = function(field, toObjectFn, opt_includeInstance) { * @param {!jspb.Message} proto The proto whose extensions to convert. * @param {!Object} obj The Soy object to add converted extension data to. * @param {!Object} extensions The proto class' registered extensions. - * @param {function(jspb.ExtensionFieldInfo) : *} getExtensionFn The proto - * class' getExtension function. Passed for effective dead code removal. + * @param {function(this:?, jspb.ExtensionFieldInfo) : *} getExtensionFn + * The proto class' getExtension function. Passed for effective dead code + * removal. * @param {boolean=} opt_includeInstance Whether to include the JSPB instance * for transitional soy proto support: http://goto/soy-param-migration */ @@ -472,7 +499,7 @@ jspb.Message.serializeBinaryExtensions = function(proto, writer, extensions, } var value = getExtensionFn.call(proto, fieldInfo); if (value) { - if (fieldInfo.ctor) { // is this a message type? + if (fieldInfo.isMessageType()) { // If the message type of the extension was generated without binary // support, there may not be a binary message serializer function, and // we can't know when we codegen the extending message that the extended @@ -517,8 +544,7 @@ jspb.Message.readBinaryExtension = function(msg, reader, extensions, } var value; - if (fieldInfo.ctor) { - // Message type. + if (fieldInfo.isMessageType()) { value = new fieldInfo.ctor(); fieldInfo.binaryReaderFn.call( reader, value, fieldInfo.binaryMessageDeserializeFn); @@ -567,6 +593,130 @@ jspb.Message.getField = function(msg, fieldNumber) { /** + * Gets the value of an optional float or double field. + * @param {!jspb.Message} msg A jspb proto. + * @param {number} fieldNumber The field number. + * @return {?number|undefined} The field's value. + * @protected + */ +jspb.Message.getOptionalFloatingPointField = function(msg, fieldNumber) { + var value = jspb.Message.getField(msg, fieldNumber); + // Converts "NaN", "Infinity" and "-Infinity" to their corresponding numbers. + return value == null ? value : +value; +}; + + +/** + * Gets the value of a repeated float or double field. + * @param {!jspb.Message} msg A jspb proto. + * @param {number} fieldNumber The field number. + * @return {!Array<number>} The field's value. + * @protected + */ +jspb.Message.getRepeatedFloatingPointField = function(msg, fieldNumber) { + var values = jspb.Message.getField(msg, fieldNumber); + if (!msg.convertedFloatingPointFields_) { + msg.convertedFloatingPointFields_ = {}; + } + if (!msg.convertedFloatingPointFields_[fieldNumber]) { + for (var i = 0; i < values.length; i++) { + // Converts "NaN", "Infinity" and "-Infinity" to their corresponding + // numbers. + values[i] = +values[i]; + } + msg.convertedFloatingPointFields_[fieldNumber] = true; + } + return /** @type {!Array<number>} */ (values); +}; + + +/** + * Coerce a 'bytes' field to a base 64 string. + * @param {string|Uint8Array|null} value + * @return {?string} The field's coerced value. + */ +jspb.Message.bytesAsB64 = function(value) { + if (value == null || goog.isString(value)) { + return value; + } + if (jspb.Message.SUPPORTS_UINT8ARRAY_ && value instanceof Uint8Array) { + return goog.crypt.base64.encodeByteArray(value); + } + goog.asserts.fail('Cannot coerce to b64 string: ' + goog.typeOf(value)); + return null; +}; + + +/** + * Coerce a 'bytes' field to a Uint8Array byte buffer. + * Note that Uint8Array is not supported on IE versions before 10 nor on Opera + * Mini. @see http://caniuse.com/Uint8Array + * @param {string|Uint8Array|null} value + * @return {?Uint8Array} The field's coerced value. + */ +jspb.Message.bytesAsU8 = function(value) { + if (value == null || value instanceof Uint8Array) { + return value; + } + if (goog.isString(value)) { + return goog.crypt.base64.decodeStringToUint8Array(value); + } + goog.asserts.fail('Cannot coerce to Uint8Array: ' + goog.typeOf(value)); + return null; +}; + + +/** + * Coerce a repeated 'bytes' field to an array of base 64 strings. + * Note: the returned array should be treated as immutable. + * @param {!Array<string>|!Array<!Uint8Array>} value + * @return {!Array<string?>} The field's coerced value. + */ +jspb.Message.bytesListAsB64 = function(value) { + jspb.Message.assertConsistentTypes_(value); + if (!value.length || goog.isString(value[0])) { + return /** @type {!Array<string>} */ (value); + } + return goog.array.map(value, jspb.Message.bytesAsB64); +}; + + +/** + * Coerce a repeated 'bytes' field to an array of Uint8Array byte buffers. + * Note: the returned array should be treated as immutable. + * Note that Uint8Array is not supported on IE versions before 10 nor on Opera + * Mini. @see http://caniuse.com/Uint8Array + * @param {!Array<string>|!Array<!Uint8Array>} value + * @return {!Array<Uint8Array?>} The field's coerced value. + */ +jspb.Message.bytesListAsU8 = function(value) { + jspb.Message.assertConsistentTypes_(value); + if (!value.length || value[0] instanceof Uint8Array) { + return /** @type {!Array<!Uint8Array>} */ (value); + } + return goog.array.map(value, jspb.Message.bytesAsU8); +}; + + +/** + * Asserts that all elements of an array are of the same type. + * @param {Array?} array The array to test. + * @private + */ +jspb.Message.assertConsistentTypes_ = function(array) { + if (goog.DEBUG && array && array.length > 1) { + var expected = goog.typeOf(array[0]); + goog.array.forEach(array, function(e) { + if (goog.typeOf(e) != expected) { + goog.asserts.fail('Inconsistent type in JSPB repeated field array. ' + + 'Got ' + goog.typeOf(e) + ' expected ' + expected); + } + }); + } +}; + + +/** * Gets the value of a non-extension primitive field, with proto3 (non-nullable * primitives) semantics. Returns `defaultValue` if the field is not otherwise * set. @@ -841,7 +991,7 @@ jspb.Message.prototype.getExtension = function(fieldInfo) { } var fieldNumber = fieldInfo.fieldIndex; if (fieldInfo.isRepeated) { - if (fieldInfo.ctor) { + if (fieldInfo.isMessageType()) { if (!this.wrappers_[fieldNumber]) { this.wrappers_[fieldNumber] = goog.array.map(this.extensionObject_[fieldNumber] || [], @@ -854,7 +1004,7 @@ jspb.Message.prototype.getExtension = function(fieldInfo) { return this.extensionObject_[fieldNumber]; } } else { - if (fieldInfo.ctor) { + if (fieldInfo.isMessageType()) { if (!this.wrappers_[fieldNumber] && this.extensionObject_[fieldNumber]) { this.wrappers_[fieldNumber] = new fieldInfo.ctor( /** @type {Array|undefined} */ ( @@ -871,7 +1021,8 @@ jspb.Message.prototype.getExtension = function(fieldInfo) { /** * Sets the value of the extension field in the extended object. * @param {jspb.ExtensionFieldInfo} fieldInfo Specifies the field to set. - * @param {jspb.Message|string|number|boolean|Array} value The value to set. + * @param {jspb.Message|string|Uint8Array|number|boolean|Array?} value The value + * to set. */ jspb.Message.prototype.setExtension = function(fieldInfo, value) { if (!this.wrappers_) { @@ -881,7 +1032,7 @@ jspb.Message.prototype.setExtension = function(fieldInfo, value) { var fieldNumber = fieldInfo.fieldIndex; if (fieldInfo.isRepeated) { value = value || []; - if (fieldInfo.ctor) { + if (fieldInfo.isMessageType()) { this.wrappers_[fieldNumber] = value; this.extensionObject_[fieldNumber] = goog.array.map( /** @type {Array<jspb.Message>} */ (value), function(msg) { @@ -891,7 +1042,7 @@ jspb.Message.prototype.setExtension = function(fieldInfo, value) { this.extensionObject_[fieldNumber] = value; } } else { - if (fieldInfo.ctor) { + if (fieldInfo.isMessageType()) { this.wrappers_[fieldNumber] = value; this.extensionObject_[fieldNumber] = value ? value.toArray() : value; } else { @@ -958,49 +1109,110 @@ jspb.Message.equals = function(m1, m2) { /** + * Compares two message extension fields recursively. + * @param {!Object} extension1 The first field. + * @param {!Object} extension2 The second field. + * @return {boolean} true if the extensions are null/undefined, or otherwise + * equal. + */ +jspb.Message.compareExtensions = function(extension1, extension2) { + extension1 = extension1 || {}; + extension2 = extension2 || {}; + + var keys = {}; + for (var name in extension1) { + keys[name] = 0; + } + for (var name in extension2) { + keys[name] = 0; + } + for (name in keys) { + if (!jspb.Message.compareFields(extension1[name], extension2[name])) { + return false; + } + } + return true; +}; + + +/** * Compares two message fields recursively. * @param {*} field1 The first field. * @param {*} field2 The second field. * @return {boolean} true if the fields are null/undefined, or otherwise equal. */ jspb.Message.compareFields = function(field1, field2) { - if (goog.isObject(field1) && goog.isObject(field2)) { - var keys = {}, name, extensionObject1, extensionObject2; - for (name in field1) { - field1.hasOwnProperty(name) && (keys[name] = 0); - } - for (name in field2) { - field2.hasOwnProperty(name) && (keys[name] = 0); + // If the fields are trivially equal, they're equal. + if (field1 == field2) return true; + + // If the fields aren't trivially equal and one of them isn't an object, + // they can't possibly be equal. + if (!goog.isObject(field1) || !goog.isObject(field2)) { + return false; + } + + // We have two objects. If they're different types, they're not equal. + field1 = /** @type {!Object} */(field1); + field2 = /** @type {!Object} */(field2); + if (field1.constructor != field2.constructor) return false; + + // If both are Uint8Arrays, compare them element-by-element. + if (jspb.Message.SUPPORTS_UINT8ARRAY_ && field1.constructor === Uint8Array) { + var bytes1 = /** @type {!Uint8Array} */(field1); + var bytes2 = /** @type {!Uint8Array} */(field2); + if (bytes1.length != bytes2.length) return false; + for (var i = 0; i < bytes1.length; i++) { + if (bytes1[i] != bytes2[i]) return false; } - for (name in keys) { - var val1 = field1[name], val2 = field2[name]; - if (goog.isObject(val1) && !goog.isArray(val1)) { - if (extensionObject1 !== undefined) { - throw new Error('invalid jspb state'); - } - extensionObject1 = goog.object.isEmpty(val1) ? undefined : val1; + return true; + } + + // If they're both Arrays, compare them element by element except for the + // optional extension objects at the end, which we compare separately. + if (field1.constructor === Array) { + var extension1 = undefined; + var extension2 = undefined; + + var length = Math.max(field1.length, field2.length); + for (var i = 0; i < length; i++) { + var val1 = field1[i]; + var val2 = field2[i]; + + if (val1 && (val1.constructor == Object)) { + goog.asserts.assert(extension1 === undefined); + goog.asserts.assert(i === field1.length - 1); + extension1 = val1; val1 = undefined; } - if (goog.isObject(val2) && !goog.isArray(val2)) { - if (extensionObject2 !== undefined) { - throw new Error('invalid jspb state'); - } - extensionObject2 = goog.object.isEmpty(val2) ? undefined : val2; + + if (val2 && (val2.constructor == Object)) { + goog.asserts.assert(extension2 === undefined); + goog.asserts.assert(i === field2.length - 1); + extension2 = val2; val2 = undefined; } + if (!jspb.Message.compareFields(val1, val2)) { return false; } } - if (extensionObject1 || extensionObject2) { - return jspb.Message.compareFields(extensionObject1, extensionObject2); + + if (extension1 || extension2) { + extension1 = extension1 || {}; + extension2 = extension2 || {}; + return jspb.Message.compareExtensions(extension1, extension2); } + return true; } - // Primitive fields, null and undefined compare as equal. - // This also forces booleans and 0/1 to compare as equal to ensure - // compatibility with the jspb serializer. - return field1 == field2; + + // If they're both plain Objects (i.e. extensions), compare them as + // extensions. + if (field1.constructor === Object) { + return jspb.Message.compareExtensions(field1, field2); + } + + throw new Error('Invalid type in JSPB array'); }; |