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events

This commit is contained in:
Marek Kotewicz 2015-01-31 03:42:13 +01:00
parent 2491c99b37
commit 80c97ca21b
5 changed files with 120 additions and 22 deletions
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28
dist/ethereum.js vendored
View File

@ -502,27 +502,36 @@ var utils = require('./utils');
var inputWithName = function (inputs, name) {
var index = utils.findIndex(inputs, function (input) {
return input.name === name;
return input.name === name;
});
if (index === -1) {
console.error('indexed param ' + name + ' not found in the abi');
return undefined;
console.error('indexed paray with name ' + name + ' not found');
return undefined;
}
return inputs[index];
};
var indexedParamsToTopics = function (inputs, indexed) {
Object.keys(indexed).map(function (key) {
var inp = inputWithName(key);
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) {
@ -530,6 +539,9 @@ var implementationOfEvent = function (address, signature, event) {
o.address = address;
o.topic = [];
o.topic.push(signature);
if (indexed) {
o.topic = o.topic.concat(indexedParamsToTopics(event, indexed));
}
return o;
};
};

4
dist/ethereum.js.map vendored
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File diff suppressed because one or more lines are too long

2
dist/ethereum.min.js vendored
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File diff suppressed because one or more lines are too long

28
lib/event.js
View File

@ -25,27 +25,36 @@ var utils = require('./utils');
var inputWithName = function (inputs, name) {
var index = utils.findIndex(inputs, function (input) {
return input.name === name;
return input.name === name;
});
if (index === -1) {
console.error('indexed param ' + name + ' not found in the abi');
return undefined;
console.error('indexed paray with name ' + name + ' not found');
return undefined;
}
return inputs[index];
};
var indexedParamsToTopics = function (inputs, indexed) {
Object.keys(indexed).map(function (key) {
var inp = inputWithName(key);
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) {
@ -53,6 +62,9 @@ var implementationOfEvent = function (address, signature, event) {
o.address = address;
o.topic = [];
o.topic.push(signature);
if (indexed) {
o.topic = o.topic.concat(indexedParamsToTopics(event, indexed));
}
return o;
};
};

80
test/event.js
View File

@ -1,5 +1,6 @@
var assert = require('assert');
var event = require('../lib/event.js');
var f = require('../lib/formatters.js');
describe('event', function () {
it('should create basic filter input object', function () {
@ -7,9 +8,13 @@ describe('event', function () {
// given
var address = '0x012345';
var signature = '0x987654';
var e = {
name: 'Event',
inputs: [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"hash256","indexed":false}]
};
// when
var impl = event(address, signature);
var impl = event(address, signature, e);
var result = impl();
// then
@ -19,7 +24,7 @@ describe('event', function () {
});
it('should create basic filter input object', function () {
it('should create filter input object with options', function () {
// given
var address = '0x012345';
@ -30,9 +35,13 @@ describe('event', function () {
offset: 3,
max: 4
};
var e = {
name: 'Event',
inputs: [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"hash256","indexed":false}]
};
// when
var impl = event(address, signature);
var impl = event(address, signature, e);
var result = impl({}, options);
// then
@ -46,5 +55,70 @@ describe('event', function () {
});
it('should create filter input object with indexed params', function () {
// given
var address = '0x012345';
var signature = '0x987654';
var options = {
earliest: 1,
latest: 2,
offset: 3,
max: 4
};
var e = {
name: 'Event',
inputs: [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"hash256","indexed":false}]
};
// when
var impl = event(address, signature, e);
var result = impl({a: 4}, options);
// then
assert.equal(result.address, address);
assert.equal(result.topic.length, 2);
assert.equal(result.topic[0], signature);
assert.equal(result.topic[1], f.formatInputInt(4));
assert.equal(result.earliest, options.earliest);
assert.equal(result.latest, options.latest);
assert.equal(result.offset, options.offset);
assert.equal(result.max, options.max);
});
it('should create filter input object with an array of indexed params', function () {
// given
var address = '0x012345';
var signature = '0x987654';
var options = {
earliest: 1,
latest: 2,
offset: 3,
max: 4
};
var e = {
name: 'Event',
inputs: [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"hash256","indexed":false}]
};
// when
var impl = event(address, signature, e);
var result = impl({a: [4, 69]}, options);
// then
assert.equal(result.address, address);
assert.equal(result.topic.length, 2);
assert.equal(result.topic[0], signature);
assert.equal(result.topic[1][0], f.formatInputInt(4));
assert.equal(result.topic[1][1], f.formatInputInt(69));
assert.equal(result.earliest, options.earliest);
assert.equal(result.latest, options.latest);
assert.equal(result.offset, options.offset);
assert.equal(result.max, options.max);
});
});