more comments

3 files changed, 26 insertions, 10 deletions

diff --git a/dist/ethereum.js b/dist/ethereum.js
index d7b55b6e4..2ce1346b4 100644
--- a/dist/ethereum.js
+++ b/dist/ethereum.js
@@ -83,6 +83,8 @@ var namedType = function (name) {
 /// @returns an array of input formatters 
 var setupInputTypes = function () {
     
+    /// Formats input value to byte representation of int
+    /// @returns right-aligned byte representation of int
     var formatInt = function (value) {
         var padding = 32 * 2;
         if (typeof value === 'number')
@@ -96,10 +98,14 @@ var setupInputTypes = function () {
         return padLeft(value, padding);
     };
 
+    /// Formats input value to byte representation of string
+    /// @returns left-algined byte representation of string
     var formatString = function (value) {
         return web3.fromAscii(value, 32).substr(2);
     };
 
+    /// Formats input value to byte representation of bool
+    /// @returns right-aligned byte representation bool
     var formatBool = function (value) {
         return '000000000000000000000000000000000000000000000000000000000000000' + (value ?  '1' : '0');
     };
@@ -153,26 +159,28 @@ var toAbiInput = function (json, methodName, params) {
 /// @returns an array of output formatters
 var setupOutputTypes = function () {
 
-    /// @returns input bytes formatted to int
+    /// Formats input right-aligned input bytes to int
+    /// @returns right-aligned input bytes formatted to int
     var formatInt = function (value) {
         return value.length <= 8 ? +parseInt(value, 16) : hexToDec(value);
     };
 
-    /// @returns input bytes formatted to hex
+    /// @returns right-aligned input bytes formatted to hex
     var formatHash = function (value) {
         return "0x" + value;
     };
 
-    /// @returns input bytes formatted to bool
+    /// @returns right-aligned input bytes formatted to bool
     var formatBool = function (value) {
         return value === '0000000000000000000000000000000000000000000000000000000000000001' ? true : false;
     };
 
-    /// @returns input bytes formatted to ascii string
+    /// @returns left-aligned input bytes formatted to ascii string
     var formatString = function (value) {
         return web3.toAscii(value);
     };
 
+    /// @returns right-aligned input bytes formatted to address
     var formatAddress = function (value) {
         return "0x" + value.slice(value.length - 40, value.length);
     };
diff --git a/dist/ethereum.js.map b/dist/ethereum.js.map
index 042ddb86f..4deea76d9 100644
--- a/dist/ethereum.js.map
+++ b/dist/ethereum.js.map
@@ -14,12 +14,12 @@
     "index.js"
   ],
   "names": [],
-  "mappings": 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+  "mappings": 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   "file": "generated.js",
   "sourceRoot": "",
   "sourcesContent": [
     "(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})",
-    "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file abi.js\n * @authors:\n *   Marek Kotewicz <marek@ethdev.com>\n *   Gav Wood <g@ethdev.com>\n * @date 2014\n */\n\n// TODO: is these line is supposed to be here? \nif (\"build\" !== 'build') {/*\n    var web3 = require('./web3'); // jshint ignore:line\n*/}\n\n// TODO: make these be actually accurate instead of falling back onto JS's doubles.\nvar hexToDec = function (hex) {\n    return parseInt(hex, 16).toString();\n};\n\nvar decToHex = function (dec) {\n    return parseInt(dec).toString(16);\n};\n\n/// Finds first index of array element matching pattern\n/// @param array\n/// @param callback pattern\n/// @returns index of element\nvar findIndex = function (array, callback) {\n    var end = false;\n    var i = 0;\n    for (; i < array.length && !end; i++) {\n        end = callback(array[i]);\n    }\n    return end ? i - 1 : -1;\n};\n\n/// @returns a function that is used as a pattern for 'findIndex'\nvar findMethodIndex = function (json, methodName) {\n    return findIndex(json, function (method) {\n        return method.name === methodName;\n    });\n};\n\n/// @param string string to be padded\n/// @param number of characters that result string should have\n/// @returns right aligned string\nvar padLeft = function (string, chars) {\n    return new Array(chars - string.length + 1).join(\"0\") + string;\n};\n\n/// @param expected type prefix (string)\n/// @returns function which checks if type has matching prefix. if yes, returns true, otherwise false\nvar prefixedType = function (prefix) {\n    return function (type) {\n        return type.indexOf(prefix) === 0;\n    };\n};\n\n/// @param expected type name (string)\n/// @returns function which checks if type is matching expected one. if yes, returns true, otherwise false\nvar namedType = function (name) {\n    return function (type) {\n        return name === type;\n    };\n};\n\n/// Setups input formatters for solidity types\n/// @returns an array of input formatters \nvar setupInputTypes = function () {\n    \n    var formatInt = function (value) {\n        var padding = 32 * 2;\n        if (typeof value === 'number')\n            value = value.toString(16);\n        else if (value.indexOf('0x') === 0)\n            value = value.substr(2);\n        else if (typeof value === 'string')\n            value = value.toHex(value);\n        else\n            value = (+value).toString(16);\n        return padLeft(value, padding);\n    };\n\n    var formatString = function (value) {\n        return web3.fromAscii(value, 32).substr(2);\n    };\n\n    var formatBool = function (value) {\n        return '000000000000000000000000000000000000000000000000000000000000000' + (value ?  '1' : '0');\n    };\n\n    return [\n        { type: prefixedType('uint'), format: formatInt },\n        { type: prefixedType('int'), format: formatInt },\n        { type: prefixedType('hash'), format: formatInt },\n        { type: prefixedType('string'), format: formatString }, \n        { type: prefixedType('real'), format: formatInt },\n        { type: prefixedType('ureal'), format: formatInt },\n        { type: namedType('address'), format: formatInt },\n        { type: namedType('bool'), format: formatBool }\n    ];\n};\n\nvar inputTypes = setupInputTypes();\n\n/// Formats input params to bytes\n/// @param contract json abi\n/// @param name of the method that we want to use\n/// @param array of params that will be formatted to bytes\n/// @returns bytes representation of input params\nvar toAbiInput = function (json, methodName, params) {\n    var bytes = \"\";\n    var index = findMethodIndex(json, methodName);\n\n    if (index === -1) {\n        return;\n    }\n\n    var method = json[index];\n    var padding = 32 * 2;\n\n    for (var i = 0; i < method.inputs.length; i++) {\n        var typeMatch = false;\n        for (var j = 0; j < inputTypes.length && !typeMatch; j++) {\n            typeMatch = inputTypes[j].type(method.inputs[i].type, params[i]);\n        }\n        if (!typeMatch) {\n            console.error('input parser does not support type: ' + method.inputs[i].type);\n        }\n\n        var formatter = inputTypes[j - 1].format;\n        bytes += (formatter ? formatter(params[i]) : params[i]);\n    }\n    return bytes;\n};\n\n/// Setups output formaters for solidity types\n/// @returns an array of output formatters\nvar setupOutputTypes = function () {\n\n    /// @returns input bytes formatted to int\n    var formatInt = function (value) {\n        return value.length <= 8 ? +parseInt(value, 16) : hexToDec(value);\n    };\n\n    /// @returns input bytes formatted to hex\n    var formatHash = function (value) {\n        return \"0x\" + value;\n    };\n\n    /// @returns input bytes formatted to bool\n    var formatBool = function (value) {\n        return value === '0000000000000000000000000000000000000000000000000000000000000001' ? true : false;\n    };\n\n    /// @returns input bytes formatted to ascii string\n    var formatString = function (value) {\n        return web3.toAscii(value);\n    };\n\n    var formatAddress = function (value) {\n        return \"0x\" + value.slice(value.length - 40, value.length);\n    };\n\n    return [\n        { type: prefixedType('uint'), format: formatInt },\n        { type: prefixedType('int'), format: formatInt },\n        { type: prefixedType('hash'), format: formatHash },\n        { type: prefixedType('string'), format: formatString },\n        { type: prefixedType('real'), format: formatInt },\n        { type: prefixedType('ureal'), format: formatInt },\n        { type: namedType('address'), format: formatAddress },\n        { type: namedType('bool'), format: formatBool }\n    ];\n};\n\nvar outputTypes = setupOutputTypes();\n\n/// Formats output bytes back to param list\n/// @param contract json abi\n/// @param name of the method that we want to use\n/// @param bytes representtion of output \n/// @returns array of output params \nvar fromAbiOutput = function (json, methodName, output) {\n    var index = findMethodIndex(json, methodName);\n\n    if (index === -1) {\n        return;\n    }\n\n    output = output.slice(2);\n\n    var result = [];\n    var method = json[index];\n    var padding = 32 * 2;\n    for (var i = 0; i < method.outputs.length; i++) {\n        var typeMatch = false;\n        for (var j = 0; j < outputTypes.length && !typeMatch; j++) {\n            typeMatch = outputTypes[j].type(method.outputs[i].type);\n        }\n\n        if (!typeMatch) {\n            // not found output parsing\n            console.error('output parser does not support type: ' + method.outputs[i].type);\n            continue;\n        }\n        var res = output.slice(0, padding);\n        var formatter = outputTypes[j - 1].format;\n        result.push(formatter ? formatter(res) : (\"0x\" + res));\n        output = output.slice(padding);\n    }\n\n    return result;\n};\n\n/// @param json abi for contract\n/// @returns input parser object for given json abi\nvar inputParser = function (json) {\n    var parser = {};\n    json.forEach(function (method) {\n        parser[method.name] = function () {\n            var params = Array.prototype.slice.call(arguments);\n            return toAbiInput(json, method.name, params);\n        };\n    });\n\n    return parser;\n};\n\n/// @param json abi for contract\n/// @returns output parser for given json abi\nvar outputParser = function (json) {\n    var parser = {};\n    json.forEach(function (method) {\n        parser[method.name] = function (output) {\n            return fromAbiOutput(json, method.name, output);\n        };\n    });\n\n    return parser;\n};\n\n/// @param json abi for contract\n/// @param method name for which we want to get method signature\n/// @returns (promise) contract method signature for method with given name\nvar methodSignature = function (json, name) {\n    var method = json[findMethodIndex(json, name)];\n    var result = name + '(';\n    var inputTypes = method.inputs.map(function (inp) {\n        return inp.type;\n    });\n    result += inputTypes.join(',');\n    result += ')';\n\n    return web3.sha3(web3.fromAscii(result));\n};\n\nmodule.exports = {\n    inputParser: inputParser,\n    outputParser: outputParser,\n    methodSignature: methodSignature\n};\n\n",
+    "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file abi.js\n * @authors:\n *   Marek Kotewicz <marek@ethdev.com>\n *   Gav Wood <g@ethdev.com>\n * @date 2014\n */\n\n// TODO: is these line is supposed to be here? \nif (\"build\" !== 'build') {/*\n    var web3 = require('./web3'); // jshint ignore:line\n*/}\n\n// TODO: make these be actually accurate instead of falling back onto JS's doubles.\nvar hexToDec = function (hex) {\n    return parseInt(hex, 16).toString();\n};\n\nvar decToHex = function (dec) {\n    return parseInt(dec).toString(16);\n};\n\n/// Finds first index of array element matching pattern\n/// @param array\n/// @param callback pattern\n/// @returns index of element\nvar findIndex = function (array, callback) {\n    var end = false;\n    var i = 0;\n    for (; i < array.length && !end; i++) {\n        end = callback(array[i]);\n    }\n    return end ? i - 1 : -1;\n};\n\n/// @returns a function that is used as a pattern for 'findIndex'\nvar findMethodIndex = function (json, methodName) {\n    return findIndex(json, function (method) {\n        return method.name === methodName;\n    });\n};\n\n/// @param string string to be padded\n/// @param number of characters that result string should have\n/// @returns right aligned string\nvar padLeft = function (string, chars) {\n    return new Array(chars - string.length + 1).join(\"0\") + string;\n};\n\n/// @param expected type prefix (string)\n/// @returns function which checks if type has matching prefix. if yes, returns true, otherwise false\nvar prefixedType = function (prefix) {\n    return function (type) {\n        return type.indexOf(prefix) === 0;\n    };\n};\n\n/// @param expected type name (string)\n/// @returns function which checks if type is matching expected one. if yes, returns true, otherwise false\nvar namedType = function (name) {\n    return function (type) {\n        return name === type;\n    };\n};\n\n/// Setups input formatters for solidity types\n/// @returns an array of input formatters \nvar setupInputTypes = function () {\n    \n    /// Formats input value to byte representation of int\n    /// @returns right-aligned byte representation of int\n    var formatInt = function (value) {\n        var padding = 32 * 2;\n        if (typeof value === 'number')\n            value = value.toString(16);\n        else if (value.indexOf('0x') === 0)\n            value = value.substr(2);\n        else if (typeof value === 'string')\n            value = value.toHex(value);\n        else\n            value = (+value).toString(16);\n        return padLeft(value, padding);\n    };\n\n    /// Formats input value to byte representation of string\n    /// @returns left-algined byte representation of string\n    var formatString = function (value) {\n        return web3.fromAscii(value, 32).substr(2);\n    };\n\n    /// Formats input value to byte representation of bool\n    /// @returns right-aligned byte representation bool\n    var formatBool = function (value) {\n        return '000000000000000000000000000000000000000000000000000000000000000' + (value ?  '1' : '0');\n    };\n\n    return [\n        { type: prefixedType('uint'), format: formatInt },\n        { type: prefixedType('int'), format: formatInt },\n        { type: prefixedType('hash'), format: formatInt },\n        { type: prefixedType('string'), format: formatString }, \n        { type: prefixedType('real'), format: formatInt },\n        { type: prefixedType('ureal'), format: formatInt },\n        { type: namedType('address'), format: formatInt },\n        { type: namedType('bool'), format: formatBool }\n    ];\n};\n\nvar inputTypes = setupInputTypes();\n\n/// Formats input params to bytes\n/// @param contract json abi\n/// @param name of the method that we want to use\n/// @param array of params that will be formatted to bytes\n/// @returns bytes representation of input params\nvar toAbiInput = function (json, methodName, params) {\n    var bytes = \"\";\n    var index = findMethodIndex(json, methodName);\n\n    if (index === -1) {\n        return;\n    }\n\n    var method = json[index];\n    var padding = 32 * 2;\n\n    for (var i = 0; i < method.inputs.length; i++) {\n        var typeMatch = false;\n        for (var j = 0; j < inputTypes.length && !typeMatch; j++) {\n            typeMatch = inputTypes[j].type(method.inputs[i].type, params[i]);\n        }\n        if (!typeMatch) {\n            console.error('input parser does not support type: ' + method.inputs[i].type);\n        }\n\n        var formatter = inputTypes[j - 1].format;\n        bytes += (formatter ? formatter(params[i]) : params[i]);\n    }\n    return bytes;\n};\n\n/// Setups output formaters for solidity types\n/// @returns an array of output formatters\nvar setupOutputTypes = function () {\n\n    /// Formats input right-aligned input bytes to int\n    /// @returns right-aligned input bytes formatted to int\n    var formatInt = function (value) {\n        return value.length <= 8 ? +parseInt(value, 16) : hexToDec(value);\n    };\n\n    /// @returns right-aligned input bytes formatted to hex\n    var formatHash = function (value) {\n        return \"0x\" + value;\n    };\n\n    /// @returns right-aligned input bytes formatted to bool\n    var formatBool = function (value) {\n        return value === '0000000000000000000000000000000000000000000000000000000000000001' ? true : false;\n    };\n\n    /// @returns left-aligned input bytes formatted to ascii string\n    var formatString = function (value) {\n        return web3.toAscii(value);\n    };\n\n    /// @returns right-aligned input bytes formatted to address\n    var formatAddress = function (value) {\n        return \"0x\" + value.slice(value.length - 40, value.length);\n    };\n\n    return [\n        { type: prefixedType('uint'), format: formatInt },\n        { type: prefixedType('int'), format: formatInt },\n        { type: prefixedType('hash'), format: formatHash },\n        { type: prefixedType('string'), format: formatString },\n        { type: prefixedType('real'), format: formatInt },\n        { type: prefixedType('ureal'), format: formatInt },\n        { type: namedType('address'), format: formatAddress },\n        { type: namedType('bool'), format: formatBool }\n    ];\n};\n\nvar outputTypes = setupOutputTypes();\n\n/// Formats output bytes back to param list\n/// @param contract json abi\n/// @param name of the method that we want to use\n/// @param bytes representtion of output \n/// @returns array of output params \nvar fromAbiOutput = function (json, methodName, output) {\n    var index = findMethodIndex(json, methodName);\n\n    if (index === -1) {\n        return;\n    }\n\n    output = output.slice(2);\n\n    var result = [];\n    var method = json[index];\n    var padding = 32 * 2;\n    for (var i = 0; i < method.outputs.length; i++) {\n        var typeMatch = false;\n        for (var j = 0; j < outputTypes.length && !typeMatch; j++) {\n            typeMatch = outputTypes[j].type(method.outputs[i].type);\n        }\n\n        if (!typeMatch) {\n            // not found output parsing\n            console.error('output parser does not support type: ' + method.outputs[i].type);\n            continue;\n        }\n        var res = output.slice(0, padding);\n        var formatter = outputTypes[j - 1].format;\n        result.push(formatter ? formatter(res) : (\"0x\" + res));\n        output = output.slice(padding);\n    }\n\n    return result;\n};\n\n/// @param json abi for contract\n/// @returns input parser object for given json abi\nvar inputParser = function (json) {\n    var parser = {};\n    json.forEach(function (method) {\n        parser[method.name] = function () {\n            var params = Array.prototype.slice.call(arguments);\n            return toAbiInput(json, method.name, params);\n        };\n    });\n\n    return parser;\n};\n\n/// @param json abi for contract\n/// @returns output parser for given json abi\nvar outputParser = function (json) {\n    var parser = {};\n    json.forEach(function (method) {\n        parser[method.name] = function (output) {\n            return fromAbiOutput(json, method.name, output);\n        };\n    });\n\n    return parser;\n};\n\n/// @param json abi for contract\n/// @param method name for which we want to get method signature\n/// @returns (promise) contract method signature for method with given name\nvar methodSignature = function (json, name) {\n    var method = json[findMethodIndex(json, name)];\n    var result = name + '(';\n    var inputTypes = method.inputs.map(function (inp) {\n        return inp.type;\n    });\n    result += inputTypes.join(',');\n    result += ')';\n\n    return web3.sha3(web3.fromAscii(result));\n};\n\nmodule.exports = {\n    inputParser: inputParser,\n    outputParser: outputParser,\n    methodSignature: methodSignature\n};\n\n",
     "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file autoprovider.js\n * @authors:\n *   Marek Kotewicz <marek@ethdev.com>\n *   Marian Oancea <marian@ethdev.com>\n * @date 2014\n */\n\n/*\n * @brief if qt object is available, uses QtProvider,\n * if not tries to connect over websockets\n * if it fails, it uses HttpRpcProvider\n */\n\n// TODO: is these line is supposed to be here? \nif (\"build\" !== 'build') {/*\n    var WebSocket = require('ws'); // jshint ignore:line\n    var web3 = require('./web3'); // jshint ignore:line\n*/}\n\n/**\n * AutoProvider object prototype is implementing 'provider protocol'\n * Automatically tries to setup correct provider(Qt, WebSockets or HttpRpc)\n * First it checkes if we are ethereum browser (if navigator.qt object is available)\n * if yes, we are using QtProvider\n * if no, we check if it is possible to establish websockets connection with ethereum (ws://localhost:40404/eth is default)\n * if it's not possible, we are using httprpc provider (http://localhost:8080)\n * The constructor allows you to specify uris on which we are trying to connect over http or websockets\n * You can do that by passing objects with fields httrpc and websockets\n */\nvar AutoProvider = function (userOptions) {\n    if (web3.haveProvider()) {\n        return;\n    }\n\n    // before we determine what provider we are, we have to cache request\n    this.sendQueue = [];\n    this.onmessageQueue = [];\n\n    if (navigator.qt) {\n        this.provider = new web3.providers.QtProvider();\n        return;\n    }\n\n    userOptions = userOptions || {};\n    var options = {\n        httprpc: userOptions.httprpc || 'http://localhost:8080',\n        websockets: userOptions.websockets || 'ws://localhost:40404/eth'\n    };\n\n    var self = this;\n    var closeWithSuccess = function (success) {\n        ws.close();\n        if (success) {\n            self.provider = new web3.providers.WebSocketProvider(options.websockets);\n        } else {\n            self.provider = new web3.providers.HttpRpcProvider(options.httprpc);\n            self.poll = self.provider.poll.bind(self.provider);\n        }\n        self.sendQueue.forEach(function (payload) {\n            self.provider(payload);\n        });\n        self.onmessageQueue.forEach(function (handler) {\n            self.provider.onmessage = handler;\n        });\n    };\n\n    var ws = new WebSocket(options.websockets);\n\n    ws.onopen = function() {\n        closeWithSuccess(true);\n    };\n\n    ws.onerror = function() {\n        closeWithSuccess(false);\n    };\n};\n\n/// Sends message forward to the provider, that is being used\n/// if provider is not yet set, enqueues the message\nAutoProvider.prototype.send = function (payload) {\n    if (this.provider) {\n        this.provider.send(payload);\n        return;\n    }\n    this.sendQueue.push(payload);\n};\n\n/// On incoming message sends the message to the provider that is currently being used\nObject.defineProperty(AutoProvider.prototype, 'onmessage', {\n    set: function (handler) {\n        if (this.provider) {\n            this.provider.onmessage = handler;\n            return;\n        }\n        this.onmessageQueue.push(handler);\n    }\n});\n\nmodule.exports = AutoProvider;\n",
     "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file contract.js\n * @authors:\n *   Marek Kotewicz <marek@ethdev.com>\n * @date 2014\n */\n\n// TODO: is these line is supposed to be here? \nif (\"build\" !== 'build') {/*\n    var web3 = require('./web3'); // jshint ignore:line\n*/}\n\nvar abi = require('./abi');\n\n/// method signature length in bytes\nvar ETH_METHOD_SIGNATURE_LENGTH = 4;\n\n/**\n * This method should be called when we want to call / transact some solidity method from javascript\n * it returns an object which has same methods available as solidity contract description\n * usage example: \n *\n * var abi = [{\n *      name: 'myMethod',\n *      inputs: [{ name: 'a', type: 'string' }],\n *      outputs: [{name 'd', type: 'string' }]\n * }];  // contract abi\n *\n * var myContract = web3.eth.contract('0x0123123121', abi); // creation of contract object\n *\n * myContract.myMethod('this is test string param for call').cal(); // myMethod call\n * myContract.myMethod('this is test string param for transact').transact() // myMethod transact\n *\n * @param address - address of the contract, which should be called\n * @param desc - abi json description of the contract, which is being created\n * @returns contract object\n */\nvar contract = function (address, desc) {\n    var inputParser = abi.inputParser(desc);\n    var outputParser = abi.outputParser(desc);\n\n    var contract = {};\n\n    desc.forEach(function (method) {\n        contract[method.name] = function () {\n            var params = Array.prototype.slice.call(arguments);\n            var parsed = inputParser[method.name].apply(null, params);\n\n            var onSuccess = function (result) {\n                return outputParser[method.name](result);\n            };\n\n            return {\n                call: function (extra) {\n                    extra = extra || {};\n                    extra.to = address;\n                    return abi.methodSignature(desc, method.name).then(function (signature) {\n                        extra.data = signature.slice(0, 2 + ETH_METHOD_SIGNATURE_LENGTH * 2) + parsed;\n                        return web3.eth.call(extra).then(onSuccess);\n                    });\n                },\n                transact: function (extra) {\n                    extra = extra || {};\n                    extra.to = address;\n                    return abi.methodSignature(desc, method.name).then(function (signature) {\n                        extra.data = signature.slice(0, 2 + ETH_METHOD_SIGNATURE_LENGTH * 2) + parsed;\n                        return web3.eth.transact(extra).then(onSuccess);\n                    });\n                }\n            };\n        };\n    });\n\n    return contract;\n};\n\nmodule.exports = contract;\n\n",
     "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file filter.js\n * @authors:\n *   Jeffrey Wilcke <jeff@ethdev.com>\n *   Marek Kotewicz <marek@ethdev.com>\n *   Marian Oancea <marian@ethdev.com>\n *   Gav Wood <g@ethdev.com>\n * @date 2014\n */\n\n// TODO: is these line is supposed to be here? \nif (\"build\" !== 'build') {/*\n    var web3 = require('./web3'); // jshint ignore:line\n*/}\n\n/// should be used when we want to watch something\n/// it's using inner polling mechanism and is notified about changes\nvar Filter = function(options, impl) {\n    this.impl = impl;\n    this.callbacks = [];\n\n    var self = this;\n    this.promise = impl.newFilter(options);\n    this.promise.then(function (id) {\n        self.id = id;\n        web3.on(impl.changed, id, self.trigger.bind(self));\n        web3.provider.startPolling({call: impl.changed, args: [id]}, id);\n    });\n};\n\n/// alias for changed*\nFilter.prototype.arrived = function(callback) {\n    this.changed(callback);\n};\n\n/// gets called when there is new eth/shh message\nFilter.prototype.changed = function(callback) {\n    var self = this;\n    this.promise.then(function(id) {\n        self.callbacks.push(callback);\n    });\n};\n\n/// trigger calling new message from people\nFilter.prototype.trigger = function(messages) {\n    for(var i = 0; i < this.callbacks.length; i++) {\n        this.callbacks[i].call(this, messages);\n    }\n};\n\n/// should be called to uninstall current filter\nFilter.prototype.uninstall = function() {\n    var self = this;\n    this.promise.then(function (id) {\n        self.impl.uninstallFilter(id);\n        web3.provider.stopPolling(id);\n        web3.off(impl.changed, id);\n    });\n};\n\n/// should be called to manually trigger getting latest messages from the client\nFilter.prototype.messages = function() {\n    var self = this;\n    return this.promise.then(function (id) {\n        return self.impl.getMessages(id);\n    });\n};\n\n/// alias for messages\nFilter.prototype.logs = function () {\n    return this.messages();\n};\n\nmodule.exports = Filter;\n",
diff --git a/lib/abi.js b/lib/abi.js
index e147a3504..29d3e3e4b 100644
--- a/lib/abi.js
+++ b/lib/abi.js
@@ -82,6 +82,8 @@ var namedType = function (name) {
 /// @returns an array of input formatters 
 var setupInputTypes = function () {
     
+    /// Formats input value to byte representation of int
+    /// @returns right-aligned byte representation of int
     var formatInt = function (value) {
         var padding = 32 * 2;
         if (typeof value === 'number')
@@ -95,10 +97,14 @@ var setupInputTypes = function () {
         return padLeft(value, padding);
     };
 
+    /// Formats input value to byte representation of string
+    /// @returns left-algined byte representation of string
     var formatString = function (value) {
         return web3.fromAscii(value, 32).substr(2);
     };
 
+    /// Formats input value to byte representation of bool
+    /// @returns right-aligned byte representation bool
     var formatBool = function (value) {
         return '000000000000000000000000000000000000000000000000000000000000000' + (value ?  '1' : '0');
     };
@@ -152,26 +158,28 @@ var toAbiInput = function (json, methodName, params) {
 /// @returns an array of output formatters
 var setupOutputTypes = function () {
 
-    /// @returns input bytes formatted to int
+    /// Formats input right-aligned input bytes to int
+    /// @returns right-aligned input bytes formatted to int
     var formatInt = function (value) {
         return value.length <= 8 ? +parseInt(value, 16) : hexToDec(value);
     };
 
-    /// @returns input bytes formatted to hex
+    /// @returns right-aligned input bytes formatted to hex
     var formatHash = function (value) {
         return "0x" + value;
     };
 
-    /// @returns input bytes formatted to bool
+    /// @returns right-aligned input bytes formatted to bool
     var formatBool = function (value) {
         return value === '0000000000000000000000000000000000000000000000000000000000000001' ? true : false;
     };
 
-    /// @returns input bytes formatted to ascii string
+    /// @returns left-aligned input bytes formatted to ascii string
     var formatString = function (value) {
         return web3.toAscii(value);
     };
 
+    /// @returns right-aligned input bytes formatted to address
     var formatAddress = function (value) {
         return "0x" + value.slice(value.length - 40, value.length);
     };