forked from cerc-io/plugeth
abi.js cleanup && new types.js, utils.js
This commit is contained in:
parent
cf534d4726
commit
2491c99b37
249
dist/ethereum.js
vendored
249
dist/ethereum.js
vendored
@ -27,6 +27,8 @@ if ("build" !== 'build') {/*
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*/}
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var web3 = require('./web3');
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var utils = require('./utils');
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var types = require('./types');
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var f = require('./formatters');
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BigNumber.config({ ROUNDING_MODE: BigNumber.ROUND_DOWN });
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@ -36,22 +38,9 @@ var ETH_PADDING = 32;
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/// method signature length in bytes
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var ETH_METHOD_SIGNATURE_LENGTH = 4;
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/// Finds first index of array element matching pattern
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/// @param array
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/// @param callback pattern
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/// @returns index of element
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var findIndex = function (array, callback) {
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var end = false;
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var i = 0;
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for (; i < array.length && !end; i++) {
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end = callback(array[i]);
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}
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return end ? i - 1 : -1;
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};
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/// @returns a function that is used as a pattern for 'findIndex'
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var findMethodIndex = function (json, methodName) {
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return findIndex(json, function (method) {
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return utils.findIndex(json, function (method) {
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return method.name === methodName;
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});
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};
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@ -82,31 +71,6 @@ var filterEvents = function (json) {
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});
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};
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/// @param string string to be padded
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/// @param number of characters that result string should have
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/// @param sign, by default 0
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/// @returns right aligned string
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/// TODO: remove, it was moved to formatters.js
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var padLeft = function (string, chars, sign) {
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return new Array(chars - string.length + 1).join(sign ? sign : "0") + string;
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};
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/// @param expected type prefix (string)
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/// @returns function which checks if type has matching prefix. if yes, returns true, otherwise false
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var prefixedType = function (prefix) {
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return function (type) {
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return type.indexOf(prefix) === 0;
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};
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};
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/// @param expected type name (string)
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/// @returns function which checks if type is matching expected one. if yes, returns true, otherwise false
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var namedType = function (name) {
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return function (type) {
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return name === type;
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};
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};
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/// This method should be called if we want to check if givent type is an array type
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/// @returns true if it is, otherwise false
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var arrayType = function (type) {
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@ -120,23 +84,7 @@ var dynamicTypeBytes = function (type, value) {
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return "";
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};
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/// Setups input formatters for solidity types
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/// @returns an array of input formatters
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var setupInputTypes = function () {
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return [
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{ type: prefixedType('uint'), format: f.formatInputInt },
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{ type: prefixedType('int'), format: f.formatInputInt },
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{ type: prefixedType('hash'), format: f.formatInputInt },
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{ type: prefixedType('string'), format: f.formatInputString },
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{ type: prefixedType('real'), format: f.formatInputReal },
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{ type: prefixedType('ureal'), format: f.formatInputReal },
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{ type: namedType('address'), format: f.formatInputInt },
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{ type: namedType('bool'), format: f.formatInputBool }
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];
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};
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var inputTypes = setupInputTypes();
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var inputTypes = types.inputTypes();
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/// Formats input params to bytes
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/// @param contract json abi
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@ -184,23 +132,7 @@ var dynamicBytesLength = function (type) {
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return 0;
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};
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/// Setups output formaters for solidity types
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/// @returns an array of output formatters
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var setupOutputTypes = function () {
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return [
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{ type: prefixedType('uint'), format: f.formatOutputUInt },
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{ type: prefixedType('int'), format: f.formatOutputInt },
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{ type: prefixedType('hash'), format: f.formatOutputHash },
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{ type: prefixedType('string'), format: f.formatOutputString },
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{ type: prefixedType('real'), format: f.formatOutputReal },
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{ type: prefixedType('ureal'), format: f.formatOutputUReal },
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{ type: namedType('address'), format: f.formatOutputAddress },
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{ type: namedType('bool'), format: f.formatOutputBool }
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];
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};
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var outputTypes = setupOutputTypes();
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var outputTypes = types.outputTypes();
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/// Formats output bytes back to param list
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/// @param contract json abi
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@ -242,7 +174,7 @@ var fromAbiOutput = function (json, methodName, output) {
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}
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result.push(array);
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}
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else if (prefixedType('string')(method.outputs[i].type)) {
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else if (types.prefixedType('string')(method.outputs[i].type)) {
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dynamicPart = dynamicPart.slice(padding);
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result.push(formatter(output.slice(0, padding)));
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output = output.slice(padding);
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@ -270,9 +202,10 @@ var methodTypeName = function (method) {
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/// @param json abi for contract
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/// @returns input parser object for given json abi
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/// TODO: refactor creating the parser, do not double logic from contract
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var inputParser = function (json) {
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var parser = {};
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filterFunctions(json).forEach(function (method) {
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json.forEach(function (method) {
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var displayName = methodDisplayName(method.name);
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var typeName = methodTypeName(method.name);
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@ -295,7 +228,7 @@ var inputParser = function (json) {
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/// @returns output parser for given json abi
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var outputParser = function (json) {
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var parser = {};
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filterFunctions(json).forEach(function (method) {
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json.forEach(function (method) {
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var displayName = methodDisplayName(method.name);
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var typeName = methodTypeName(method.name);
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@ -332,7 +265,7 @@ module.exports = {
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};
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},{"./formatters":5,"./web3":9}],2:[function(require,module,exports){
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},{"./formatters":5,"./types":9,"./utils":10,"./web3":11}],2:[function(require,module,exports){
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/*
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This file is part of ethereum.js.
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@ -462,7 +395,7 @@ var addEventsToContract = function (contract, desc, address) {
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var impl = function () {
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var params = Array.prototype.slice.call(arguments);
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var signature = abi.methodSignature(e.name);
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var event = eventImpl(address, signature);
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var event = eventImpl(address, signature, e);
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var o = event.apply(null, params);
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return web3.eth.watch(o);
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};
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@ -541,7 +474,7 @@ var contract = function (address, desc) {
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module.exports = contract;
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},{"./abi":1,"./event":3,"./web3":9}],3:[function(require,module,exports){
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},{"./abi":1,"./event":3,"./web3":11}],3:[function(require,module,exports){
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/*
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This file is part of ethereum.js.
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@ -565,8 +498,31 @@ module.exports = contract;
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*/
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var abi = require('./abi');
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var utils = require('./utils');
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var inputWithName = function (inputs, name) {
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var index = utils.findIndex(inputs, function (input) {
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return input.name === name;
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});
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if (index === -1) {
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console.error('indexed param ' + name + ' not found in the abi');
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return undefined;
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}
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return inputs[index];
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};
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var indexedParamsToTopics = function (inputs, indexed) {
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Object.keys(indexed).map(function (key) {
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var inp = inputWithName(key);
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var value = indexed[key];
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if (value instanceof Array) {
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}
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});
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};
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var implementationOfEvent = function (address, signature, event) {
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var implementationOfEvent = function (address, signature) {
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// valid options are 'earliest', 'latest', 'offset' and 'max', as defined for 'eth.watch'
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return function (indexed, options) {
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@ -581,7 +537,7 @@ var implementationOfEvent = function (address, signature) {
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module.exports = implementationOfEvent;
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},{"./abi":1}],4:[function(require,module,exports){
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},{"./abi":1,"./utils":10}],4:[function(require,module,exports){
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/*
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This file is part of ethereum.js.
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@ -680,7 +636,7 @@ Filter.prototype.logs = function () {
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module.exports = Filter;
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},{"./web3":9}],5:[function(require,module,exports){
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},{"./web3":11}],5:[function(require,module,exports){
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/*
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This file is part of ethereum.js.
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@ -707,6 +663,7 @@ if ("build" !== 'build') {/*
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var BigNumber = require('bignumber.js'); // jshint ignore:line
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*/}
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// TODO: remove web3 dependency from here!
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var web3 = require('./web3');
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BigNumber.config({ ROUNDING_MODE: BigNumber.ROUND_DOWN });
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@ -838,7 +795,7 @@ module.exports = {
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};
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},{"./web3":9}],6:[function(require,module,exports){
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},{"./web3":11}],6:[function(require,module,exports){
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/*
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This file is part of ethereum.js.
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@ -1022,7 +979,7 @@ ProviderManager.prototype.stopPolling = function (pollId) {
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module.exports = ProviderManager;
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},{"./web3":9}],8:[function(require,module,exports){
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},{"./web3":11}],8:[function(require,module,exports){
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/*
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This file is part of ethereum.js.
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@ -1073,6 +1030,128 @@ module.exports = QtSyncProvider;
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You should have received a copy of the GNU Lesser General Public License
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along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file types.js
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* @authors:
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* Marek Kotewicz <marek@ethdev.com>
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* @date 2015
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*/
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var f = require('./formatters');
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/// @param expected type prefix (string)
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/// @returns function which checks if type has matching prefix. if yes, returns true, otherwise false
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var prefixedType = function (prefix) {
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return function (type) {
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return type.indexOf(prefix) === 0;
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};
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};
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/// @param expected type name (string)
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/// @returns function which checks if type is matching expected one. if yes, returns true, otherwise false
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var namedType = function (name) {
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return function (type) {
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return name === type;
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};
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};
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/// Setups input formatters for solidity types
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/// @returns an array of input formatters
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var inputTypes = function () {
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return [
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{ type: prefixedType('uint'), format: f.formatInputInt },
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{ type: prefixedType('int'), format: f.formatInputInt },
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{ type: prefixedType('hash'), format: f.formatInputInt },
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{ type: prefixedType('string'), format: f.formatInputString },
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{ type: prefixedType('real'), format: f.formatInputReal },
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{ type: prefixedType('ureal'), format: f.formatInputReal },
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{ type: namedType('address'), format: f.formatInputInt },
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{ type: namedType('bool'), format: f.formatInputBool }
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];
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};
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/// Setups output formaters for solidity types
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/// @returns an array of output formatters
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var outputTypes = function () {
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return [
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{ type: prefixedType('uint'), format: f.formatOutputUInt },
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{ type: prefixedType('int'), format: f.formatOutputInt },
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{ type: prefixedType('hash'), format: f.formatOutputHash },
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{ type: prefixedType('string'), format: f.formatOutputString },
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{ type: prefixedType('real'), format: f.formatOutputReal },
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{ type: prefixedType('ureal'), format: f.formatOutputUReal },
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{ type: namedType('address'), format: f.formatOutputAddress },
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{ type: namedType('bool'), format: f.formatOutputBool }
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];
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};
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module.exports = {
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prefixedType: prefixedType,
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namedType: namedType,
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inputTypes: inputTypes,
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outputTypes: outputTypes
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};
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},{"./formatters":5}],10:[function(require,module,exports){
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/*
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This file is part of ethereum.js.
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ethereum.js is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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ethereum.js is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file utils.js
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* @authors:
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* Marek Kotewicz <marek@ethdev.com>
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* @date 2015
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*/
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/// Finds first index of array element matching pattern
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/// @param array
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/// @param callback pattern
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/// @returns index of element
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var findIndex = function (array, callback) {
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var end = false;
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var i = 0;
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for (; i < array.length && !end; i++) {
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end = callback(array[i]);
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}
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return end ? i - 1 : -1;
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};
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module.exports = {
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findIndex: findIndex
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};
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},{}],11:[function(require,module,exports){
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/*
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This file is part of ethereum.js.
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ethereum.js is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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ethereum.js is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file web3.js
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* @authors:
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* Jeffrey Wilcke <jeff@ethdev.com>
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@ -1404,7 +1483,7 @@ web3.abi = require('./lib/abi');
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module.exports = web3;
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},{"./lib/abi":1,"./lib/contract":2,"./lib/filter":4,"./lib/httpsync":6,"./lib/providermanager":7,"./lib/qtsync":8,"./lib/web3":9}]},{},["web3"])
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},{"./lib/abi":1,"./lib/contract":2,"./lib/filter":4,"./lib/httpsync":6,"./lib/providermanager":7,"./lib/qtsync":8,"./lib/web3":11}]},{},["web3"])
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//# sourceMappingURL=ethereum.js.map
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14
dist/ethereum.js.map
vendored
14
dist/ethereum.js.map
vendored
File diff suppressed because one or more lines are too long
2
dist/ethereum.min.js
vendored
2
dist/ethereum.min.js
vendored
File diff suppressed because one or more lines are too long
85
lib/abi.js
85
lib/abi.js
@ -26,6 +26,8 @@ if (process.env.NODE_ENV !== 'build') {
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}
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var web3 = require('./web3');
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var utils = require('./utils');
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var types = require('./types');
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var f = require('./formatters');
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BigNumber.config({ ROUNDING_MODE: BigNumber.ROUND_DOWN });
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@ -35,22 +37,9 @@ var ETH_PADDING = 32;
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/// method signature length in bytes
|
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var ETH_METHOD_SIGNATURE_LENGTH = 4;
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|
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/// Finds first index of array element matching pattern
|
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/// @param array
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/// @param callback pattern
|
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/// @returns index of element
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var findIndex = function (array, callback) {
|
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var end = false;
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var i = 0;
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for (; i < array.length && !end; i++) {
|
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end = callback(array[i]);
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}
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return end ? i - 1 : -1;
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};
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/// @returns a function that is used as a pattern for 'findIndex'
|
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var findMethodIndex = function (json, methodName) {
|
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return findIndex(json, function (method) {
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return utils.findIndex(json, function (method) {
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return method.name === methodName;
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});
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};
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@ -81,31 +70,6 @@ var filterEvents = function (json) {
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});
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};
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/// @param string string to be padded
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/// @param number of characters that result string should have
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/// @param sign, by default 0
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/// @returns right aligned string
|
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/// TODO: remove, it was moved to formatters.js
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var padLeft = function (string, chars, sign) {
|
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return new Array(chars - string.length + 1).join(sign ? sign : "0") + string;
|
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};
|
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|
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/// @param expected type prefix (string)
|
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/// @returns function which checks if type has matching prefix. if yes, returns true, otherwise false
|
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var prefixedType = function (prefix) {
|
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return function (type) {
|
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return type.indexOf(prefix) === 0;
|
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};
|
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};
|
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|
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/// @param expected type name (string)
|
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/// @returns function which checks if type is matching expected one. if yes, returns true, otherwise false
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var namedType = function (name) {
|
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return function (type) {
|
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return name === type;
|
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};
|
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};
|
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|
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/// This method should be called if we want to check if givent type is an array type
|
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/// @returns true if it is, otherwise false
|
||||
var arrayType = function (type) {
|
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@ -119,23 +83,7 @@ var dynamicTypeBytes = function (type, value) {
|
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return "";
|
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};
|
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|
||||
/// Setups input formatters for solidity types
|
||||
/// @returns an array of input formatters
|
||||
var setupInputTypes = function () {
|
||||
|
||||
return [
|
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{ type: prefixedType('uint'), format: f.formatInputInt },
|
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{ type: prefixedType('int'), format: f.formatInputInt },
|
||||
{ type: prefixedType('hash'), format: f.formatInputInt },
|
||||
{ type: prefixedType('string'), format: f.formatInputString },
|
||||
{ type: prefixedType('real'), format: f.formatInputReal },
|
||||
{ type: prefixedType('ureal'), format: f.formatInputReal },
|
||||
{ type: namedType('address'), format: f.formatInputInt },
|
||||
{ type: namedType('bool'), format: f.formatInputBool }
|
||||
];
|
||||
};
|
||||
|
||||
var inputTypes = setupInputTypes();
|
||||
var inputTypes = types.inputTypes();
|
||||
|
||||
/// Formats input params to bytes
|
||||
/// @param contract json abi
|
||||
@ -183,23 +131,7 @@ var dynamicBytesLength = function (type) {
|
||||
return 0;
|
||||
};
|
||||
|
||||
/// Setups output formaters for solidity types
|
||||
/// @returns an array of output formatters
|
||||
var setupOutputTypes = function () {
|
||||
|
||||
return [
|
||||
{ type: prefixedType('uint'), format: f.formatOutputUInt },
|
||||
{ type: prefixedType('int'), format: f.formatOutputInt },
|
||||
{ type: prefixedType('hash'), format: f.formatOutputHash },
|
||||
{ type: prefixedType('string'), format: f.formatOutputString },
|
||||
{ type: prefixedType('real'), format: f.formatOutputReal },
|
||||
{ type: prefixedType('ureal'), format: f.formatOutputUReal },
|
||||
{ type: namedType('address'), format: f.formatOutputAddress },
|
||||
{ type: namedType('bool'), format: f.formatOutputBool }
|
||||
];
|
||||
};
|
||||
|
||||
var outputTypes = setupOutputTypes();
|
||||
var outputTypes = types.outputTypes();
|
||||
|
||||
/// Formats output bytes back to param list
|
||||
/// @param contract json abi
|
||||
@ -241,7 +173,7 @@ var fromAbiOutput = function (json, methodName, output) {
|
||||
}
|
||||
result.push(array);
|
||||
}
|
||||
else if (prefixedType('string')(method.outputs[i].type)) {
|
||||
else if (types.prefixedType('string')(method.outputs[i].type)) {
|
||||
dynamicPart = dynamicPart.slice(padding);
|
||||
result.push(formatter(output.slice(0, padding)));
|
||||
output = output.slice(padding);
|
||||
@ -269,9 +201,10 @@ var methodTypeName = function (method) {
|
||||
|
||||
/// @param json abi for contract
|
||||
/// @returns input parser object for given json abi
|
||||
/// TODO: refactor creating the parser, do not double logic from contract
|
||||
var inputParser = function (json) {
|
||||
var parser = {};
|
||||
filterFunctions(json).forEach(function (method) {
|
||||
json.forEach(function (method) {
|
||||
var displayName = methodDisplayName(method.name);
|
||||
var typeName = methodTypeName(method.name);
|
||||
|
||||
@ -294,7 +227,7 @@ var inputParser = function (json) {
|
||||
/// @returns output parser for given json abi
|
||||
var outputParser = function (json) {
|
||||
var parser = {};
|
||||
filterFunctions(json).forEach(function (method) {
|
||||
json.forEach(function (method) {
|
||||
|
||||
var displayName = methodDisplayName(method.name);
|
||||
var typeName = methodTypeName(method.name);
|
||||
|
@ -127,7 +127,7 @@ var addEventsToContract = function (contract, desc, address) {
|
||||
var impl = function () {
|
||||
var params = Array.prototype.slice.call(arguments);
|
||||
var signature = abi.methodSignature(e.name);
|
||||
var event = eventImpl(address, signature);
|
||||
var event = eventImpl(address, signature, e);
|
||||
var o = event.apply(null, params);
|
||||
return web3.eth.watch(o);
|
||||
};
|
||||
|
25
lib/event.js
25
lib/event.js
@ -21,8 +21,31 @@
|
||||
*/
|
||||
|
||||
var abi = require('./abi');
|
||||
var utils = require('./utils');
|
||||
|
||||
var inputWithName = function (inputs, name) {
|
||||
var index = utils.findIndex(inputs, function (input) {
|
||||
return input.name === name;
|
||||
});
|
||||
if (index === -1) {
|
||||
console.error('indexed param ' + name + ' not found in the abi');
|
||||
return undefined;
|
||||
}
|
||||
return inputs[index];
|
||||
};
|
||||
|
||||
var indexedParamsToTopics = function (inputs, indexed) {
|
||||
Object.keys(indexed).map(function (key) {
|
||||
var inp = inputWithName(key);
|
||||
var value = indexed[key];
|
||||
if (value instanceof Array) {
|
||||
|
||||
}
|
||||
});
|
||||
};
|
||||
|
||||
var implementationOfEvent = function (address, signature, event) {
|
||||
|
||||
var implementationOfEvent = function (address, signature) {
|
||||
|
||||
// valid options are 'earliest', 'latest', 'offset' and 'max', as defined for 'eth.watch'
|
||||
return function (indexed, options) {
|
||||
|
@ -24,6 +24,7 @@ if (process.env.NODE_ENV !== 'build') {
|
||||
var BigNumber = require('bignumber.js'); // jshint ignore:line
|
||||
}
|
||||
|
||||
// TODO: remove web3 dependency from here!
|
||||
var web3 = require('./web3');
|
||||
|
||||
BigNumber.config({ ROUNDING_MODE: BigNumber.ROUND_DOWN });
|
||||
|
79
lib/types.js
Normal file
79
lib/types.js
Normal file
@ -0,0 +1,79 @@
|
||||
/*
|
||||
This file is part of ethereum.js.
|
||||
|
||||
ethereum.js is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU Lesser General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
ethereum.js is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public License
|
||||
along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
/** @file types.js
|
||||
* @authors:
|
||||
* Marek Kotewicz <marek@ethdev.com>
|
||||
* @date 2015
|
||||
*/
|
||||
|
||||
var f = require('./formatters');
|
||||
|
||||
/// @param expected type prefix (string)
|
||||
/// @returns function which checks if type has matching prefix. if yes, returns true, otherwise false
|
||||
var prefixedType = function (prefix) {
|
||||
return function (type) {
|
||||
return type.indexOf(prefix) === 0;
|
||||
};
|
||||
};
|
||||
|
||||
/// @param expected type name (string)
|
||||
/// @returns function which checks if type is matching expected one. if yes, returns true, otherwise false
|
||||
var namedType = function (name) {
|
||||
return function (type) {
|
||||
return name === type;
|
||||
};
|
||||
};
|
||||
|
||||
/// Setups input formatters for solidity types
|
||||
/// @returns an array of input formatters
|
||||
var inputTypes = function () {
|
||||
|
||||
return [
|
||||
{ type: prefixedType('uint'), format: f.formatInputInt },
|
||||
{ type: prefixedType('int'), format: f.formatInputInt },
|
||||
{ type: prefixedType('hash'), format: f.formatInputInt },
|
||||
{ type: prefixedType('string'), format: f.formatInputString },
|
||||
{ type: prefixedType('real'), format: f.formatInputReal },
|
||||
{ type: prefixedType('ureal'), format: f.formatInputReal },
|
||||
{ type: namedType('address'), format: f.formatInputInt },
|
||||
{ type: namedType('bool'), format: f.formatInputBool }
|
||||
];
|
||||
};
|
||||
|
||||
/// Setups output formaters for solidity types
|
||||
/// @returns an array of output formatters
|
||||
var outputTypes = function () {
|
||||
|
||||
return [
|
||||
{ type: prefixedType('uint'), format: f.formatOutputUInt },
|
||||
{ type: prefixedType('int'), format: f.formatOutputInt },
|
||||
{ type: prefixedType('hash'), format: f.formatOutputHash },
|
||||
{ type: prefixedType('string'), format: f.formatOutputString },
|
||||
{ type: prefixedType('real'), format: f.formatOutputReal },
|
||||
{ type: prefixedType('ureal'), format: f.formatOutputUReal },
|
||||
{ type: namedType('address'), format: f.formatOutputAddress },
|
||||
{ type: namedType('bool'), format: f.formatOutputBool }
|
||||
];
|
||||
};
|
||||
|
||||
module.exports = {
|
||||
prefixedType: prefixedType,
|
||||
namedType: namedType,
|
||||
inputTypes: inputTypes,
|
||||
outputTypes: outputTypes
|
||||
};
|
||||
|
39
lib/utils.js
Normal file
39
lib/utils.js
Normal file
@ -0,0 +1,39 @@
|
||||
/*
|
||||
This file is part of ethereum.js.
|
||||
|
||||
ethereum.js is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU Lesser General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
ethereum.js is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public License
|
||||
along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
/** @file utils.js
|
||||
* @authors:
|
||||
* Marek Kotewicz <marek@ethdev.com>
|
||||
* @date 2015
|
||||
*/
|
||||
|
||||
/// Finds first index of array element matching pattern
|
||||
/// @param array
|
||||
/// @param callback pattern
|
||||
/// @returns index of element
|
||||
var findIndex = function (array, callback) {
|
||||
var end = false;
|
||||
var i = 0;
|
||||
for (; i < array.length && !end; i++) {
|
||||
end = callback(array[i]);
|
||||
}
|
||||
return end ? i - 1 : -1;
|
||||
};
|
||||
|
||||
module.exports = {
|
||||
findIndex: findIndex
|
||||
};
|
||||
|
Loading…
Reference in New Issue
Block a user