Merge pull request #10 from debris/abi

Abi
This commit is contained in:
Marian OANCΞA 2014-11-18 09:00:01 +02:00
commit 8b7e59729f
8 changed files with 209 additions and 40 deletions

14
dist/ethereum.js vendored

File diff suppressed because one or more lines are too long

File diff suppressed because one or more lines are too long

File diff suppressed because one or more lines are too long

View File

@ -4,41 +4,38 @@
<head>
<script type="text/javascript" src="js/es6-promise/promise.min.js"></script>
<script type="text/javascript" src="../dist/ethereum.js"></script>
<script type="text/javascript">
if (window.Promise === undefined) {
window.Promise = ES6Promise.Promise;
}
var web3 = require('web3');
//web3.setProvider(new web3.providers.QtProvider());
//web3.setProvider(new web3.providers.HttpRpcProvider("http://localhost:8080"));
// web3.setProvider(new web3.providers.WebSocketProvider("ws://localhost:40404/eth"));
web3.setProvider(new web3.providers.AutoProvider());
function testSnippet() {
web3.eth.watch({altered: web3.eth.coinbase}).changed(function() {
web3.eth.balanceAt(web3.eth.coinbase).then(function (balance) {
console.log(parseInt(balance,16));
console.log(typeof balance);
document.getElementById("result").innerText = +balance;
function watchBalance() {
var coinbase = web3.eth.coinbase;
var originalBalance = 0;
web3.eth.balanceAt(coinbase).then(function (balance) {
originalBalance = web3.toDecimal(balance);
document.getElementById('original').innerText = 'original balance: ' + originalBalance + ' watching...';
});
web3.eth.watch({altered: coinbase}).changed(function() {
web3.eth.balanceAt(coinbase).then(function (balance) {
var currentBalance = web3.toDecimal(balance);
document.getElementById("current").innerText = 'current: ' + currentBalance;
document.getElementById("diff").innerText = 'diff: ' + (currentBalance - originalBalance);
});
});
}
</script>
</head>
<body>
<h1>std::name_reg</h1>
<input type="text" id="name"></input>
<button type="button" onClick="testSnippet();">test snippet</button>
<h1>balance</h1>
<button type="button" onClick="watchBalance();">watch balance</button>
<div></div>
result: <div id="result"></div>
<div id="original"></div>
<div id="current"></div>
<div id="diff"></div>
</body>
</html>

View File

@ -3,5 +3,6 @@ web3.providers.WebSocketProvider = require('./lib/websocket');
web3.providers.HttpRpcProvider = require('./lib/httprpc');
web3.providers.QtProvider = require('./lib/qt');
web3.providers.AutoProvider = require('./lib/autoprovider');
web3.contract = require('./lib/abi');
module.exports = web3;

View File

@ -1,4 +1,5 @@
var web3 = require('./lib/main');
web3.providers.QtProvider = require('./lib/qt');
web3.abi = require('./lib/abi');
module.exports = web3;

164
lib/abi.js Normal file
View File

@ -0,0 +1,164 @@
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;
};
var findMethodIndex = function (json, methodName) {
return findIndex(json, function (method) {
return method.name === methodName;
});
};
var padLeft = function (number, n) {
return (new Array(n * 2 - number.toString().length + 1)).join("0") + number;
};
var setupInputTypes = function () {
var prefixedType = function (prefix) {
return function (type, value) {
var expected = prefix;
if (type.indexOf(expected) !== 0) {
return false;
}
var padding = parseInt(type.slice(expected.length)) / 8;
return padLeft(value, padding);
};
};
var namedType = function (name, padding, formatter) {
return function (type, value) {
if (type !== name) {
return false;
}
return padLeft(formatter ? value : formatter(value), padding);
};
};
var formatBool = function (value) {
return value ? '1' : '0';
};
return [
prefixedType('uint'),
prefixedType('int'),
namedType('address', 20),
namedType('bool', 1, formatBool),
];
};
var inputTypes = setupInputTypes();
var toAbiInput = function (json, methodName, params) {
var bytes = "";
var index = findMethodIndex(json, methodName);
if (index === -1) {
return;
}
// it needs to be checked in WebThreeStubServer
// something wrong might be with this additional zero
bytes = bytes + index + 'x' + '0';
var method = json[index];
for (var i = 0; i < method.inputs.length; i++) {
var found = false;
for (var j = 0; j < inputTypes.length && !found; j++) {
found = inputTypes[j](method.inputs[i].type, params[i]);
}
if (!found) {
console.error('unsupported json type: ' + method.inputs[i].type);
}
bytes += found;
}
return bytes;
};
var setupOutputTypes = function () {
var prefixedType = function (prefix) {
return function (type) {
var expected = prefix;
if (type.indexOf(expected) !== 0) {
return -1;
}
var padding = parseInt(type.slice(expected.length)) / 8;
return padding * 2;
};
};
var namedType = function (name, padding) {
return function (type) {
return name === type ? padding * 2: -1;
};
};
var formatInt = function (value) {
return parseInt(value, 16);
};
var formatBool = function (value) {
return value === '1' ? true : false;
};
return [
{ padding: prefixedType('uint'), format: formatInt },
{ padding: prefixedType('int'), format: formatInt },
{ padding: namedType('address', 20) },
{ padding: namedType('bool', 1), format: formatBool }
];
};
var outputTypes = setupOutputTypes();
var fromAbiOutput = function (json, methodName, output) {
var index = findMethodIndex(json, methodName);
if (index === -1) {
return;
}
output = output.slice(2);
var result = [];
var method = json[index];
for (var i = 0; i < method.outputs.length; i++) {
var padding = -1;
for (var j = 0; j < outputTypes.length && padding === -1; j++) {
padding = outputTypes[j].padding(method.outputs[i].type);
}
if (padding === -1) {
// not found output parsing
continue;
}
var res = output.slice(0, padding);
var formatter = outputTypes[j - 1].format;
result.push(formatter ? formatter(res): res);
output = output.slice(padding);
}
return result;
};
var load = function (json) {
var contract = {};
json.forEach(function (method) {
contract[method.name] = function () {
var params = Array.prototype.slice.call(arguments);
return toAbiInput(json, method.name, params);
};
});
return contract;
};
module.exports = load;

View File

@ -77,6 +77,7 @@ var ethMethods = function () {
var methods = [
{ name: 'balanceAt', call: 'eth_balanceAt' },
{ name: 'stateAt', call: 'eth_stateAt' },
{ name: 'storageAt', call: 'eth_storageAt' },
{ name: 'countAt', call: 'eth_countAt'},
{ name: 'codeAt', call: 'eth_codeAt' },
{ name: 'transact', call: 'eth_transact' },
@ -84,8 +85,9 @@ var ethMethods = function () {
{ name: 'block', call: blockCall },
{ name: 'transaction', call: transactionCall },
{ name: 'uncle', call: uncleCall },
{ name: 'compile', call: 'eth_compile' },
{ name: 'lll', call: 'eth_lll' }
{ name: 'compilers', call: 'eth_compilers' },
{ name: 'lll', call: 'eth_lll' },
{ name: 'solidity', call: 'eth_solidity' }
];
return methods;
};