74 lines
2.2 KiB
JavaScript
74 lines
2.2 KiB
JavaScript
/*
|
|
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 event.js
|
|
* @authors:
|
|
* Marek Kotewicz <marek@ethdev.com>
|
|
* @date 2014
|
|
*/
|
|
|
|
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 paray with name ' + name + ' not found');
|
|
return undefined;
|
|
}
|
|
return inputs[index];
|
|
};
|
|
|
|
var indexedParamsToTopics = function (event, indexed) {
|
|
// sort keys?
|
|
return Object.keys(indexed).map(function (key) {
|
|
// TODO: simplify this!
|
|
var parser = abi.inputParser([{
|
|
name: 'test',
|
|
inputs: [inputWithName(event.inputs, key)]
|
|
}]);
|
|
|
|
var value = indexed[key];
|
|
if (value instanceof Array) {
|
|
return value.map(function (v) {
|
|
return parser.test(v);
|
|
});
|
|
}
|
|
return parser.test(value);
|
|
});
|
|
};
|
|
|
|
var implementationOfEvent = function (address, signature, event) {
|
|
|
|
// valid options are 'earliest', 'latest', 'offset' and 'max', as defined for 'eth.watch'
|
|
return function (indexed, options) {
|
|
var o = options || {};
|
|
o.address = address;
|
|
o.topic = [];
|
|
o.topic.push(signature);
|
|
if (indexed) {
|
|
o.topic = o.topic.concat(indexedParamsToTopics(event, indexed));
|
|
}
|
|
return o;
|
|
};
|
|
};
|
|
|
|
module.exports = implementationOfEvent;
|
|
|