mirror of https://github.com/ethereum/go-ethereum
obscuren
10 years ago
commit
7c278d6ac2
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<!doctype> |
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<html> |
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<head> |
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<script type="text/javascript" src="js/bignumber.js/bignumber.min.js"></script> |
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<script type="text/javascript" src="../dist/ethereum.js"></script> |
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<script type="text/javascript"> |
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var web3 = require('web3'); |
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web3.setProvider(new web3.providers.HttpSyncProvider()); |
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// solidity source code |
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var source = "" + |
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"contract test {\n" + |
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" function multiply(uint[] a) returns(uint d) {\n" + |
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" return a[0] + a[1];\n" + |
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" }\n" + |
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"}\n"; |
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// contract description, this will be autogenerated somehow |
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var desc = [{ |
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"name": "multiply(uint256[])", |
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"type": "function", |
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"inputs": [ |
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{ |
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"name": "a", |
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"type": "uint256[]" |
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} |
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], |
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"outputs": [ |
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{ |
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"name": "d", |
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"type": "uint256" |
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} |
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] |
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}]; |
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var contract; |
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function createExampleContract() { |
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// hide create button |
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document.getElementById('create').style.visibility = 'hidden'; |
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document.getElementById('source').innerText = source; |
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// create contract |
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var address = web3.eth.transact({code: web3.eth.solidity(source)}); |
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contract = web3.eth.contract(address, desc); |
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document.getElementById('call').style.visibility = 'visible'; |
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} |
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function callExampleContract() { |
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// this should be generated by ethereum |
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var param = parseInt(document.getElementById('value').value); |
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var param2 = parseInt(document.getElementById('value2').value); |
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// call the contract |
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var res = contract.call().multiply([param, param2]); |
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document.getElementById('result').innerText = res.toString(10); |
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} |
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</script> |
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</head> |
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<body> |
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<h1>contract</h1> |
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<div id="source"></div> |
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<div id='create'> |
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<button type="button" onClick="createExampleContract();">create example contract</button> |
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</div> |
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<div id='call' style='visibility: hidden;'> |
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<input type="number" id="value" onkeyup='callExampleContract()'></input> |
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<input type="number" id="value2" onkeyup='callExampleContract()'></input> |
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</div> |
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<div id="result"></div> |
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</body> |
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</html> |
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@ -0,0 +1,120 @@ |
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<!doctype> |
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<html> |
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<head> |
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<script type="text/javascript" src="js/bignumber.js/bignumber.min.js"></script> |
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<script type="text/javascript" src="../dist/ethereum.js"></script> |
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<script type="text/javascript"> |
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var web3 = require('web3'); |
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web3.setProvider(new web3.providers.HttpSyncProvider('http://localhost:8080')); |
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var desc = [{ |
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"type":"event", |
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"inputs": [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"hash256","indexed":false}], |
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"name":"Event" |
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}, { |
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"type":"event", |
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"inputs": [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"hash256","indexed":false}], |
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"name":"Event2" |
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}, { |
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"type":"function", |
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"inputs": [{"name":"a","type":"uint256"}], |
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"name":"foo", |
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"outputs": [] |
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}]; |
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var address = '0x01'; |
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var contract = web3.eth.contract(address, desc); |
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function test1() { |
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// "{"topic":["0x83c9849c","0xc4d76332"],"address":"0x01"}" |
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web3.eth.watch(contract).changed(function (res) { |
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}); |
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}; |
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function test2() { |
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// "{"topic":["0x83c9849c"],"address":"0x01"}" |
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web3.eth.watch(contract.Event).changed(function (res) { |
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}); |
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}; |
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function test3() { |
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// "{"topic":["0x83c9849c"],"address":"0x01"}" |
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contract.Event().changed(function (res) { |
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}); |
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}; |
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function test4() { |
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// "{"topic":["0x83c9849c","0000000000000000000000000000000000000000000000000000000000000045"],"address":"0x01"}" |
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contract.Event({a: 69}).changed(function (res) { |
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}); |
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}; |
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function test5() { |
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// "{"topic":["0x83c9849c",["0000000000000000000000000000000000000000000000000000000000000045","000000000000000000000000000000000000000000000000000000000000002a"]],"address":"0x01"}" |
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contract.Event({a: [69, 42]}).changed(function (res) { |
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}); |
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}; |
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function test6() { |
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// "{"topic":["0x83c9849c","000000000000000000000000000000000000000000000000000000000000001e"],"max":100,"address":"0x01"}" |
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contract.Event({a: 30}, {max: 100}).changed(function (res) { |
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}); |
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}; |
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function test7() { |
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// "{"topic":["0x83c9849c","000000000000000000000000000000000000000000000000000000000000001e"],"address":"0x01"}" |
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web3.eth.watch(contract.Event, {a: 30}).changed(function (res) { |
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}); |
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}; |
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function test8() { |
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// "{"topic":["0x83c9849c","000000000000000000000000000000000000000000000000000000000000001e"],"max":100,"address":"0x01"}" |
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web3.eth.watch(contract.Event, {a: 30}, {max: 100}).changed(function (res) { |
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}); |
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}; |
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// not valid |
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// function testX() { |
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// web3.eth.watch([contract.Event, contract.Event2]).changed(function (res) { |
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// }); |
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// }; |
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</script> |
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</head> |
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<body> |
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<div> |
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<button type="button" onClick="test1();">test1</button> |
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</div> |
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<div> |
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<button type="button" onClick="test2();">test2</button> |
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</div> |
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<div> |
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<button type="button" onClick="test3();">test3</button> |
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</div> |
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<div> |
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<button type="button" onClick="test4();">test4</button> |
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</div> |
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<div> |
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<button type="button" onClick="test5();">test5</button> |
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</div> |
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<div> |
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<button type="button" onClick="test6();">test6</button> |
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</div> |
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<div> |
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<button type="button" onClick="test7();">test7</button> |
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</div> |
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<div> |
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<button type="button" onClick="test8();">test8</button> |
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</div> |
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</body> |
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</html> |
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@ -0,0 +1,66 @@ |
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<!doctype> |
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<html> |
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<head> |
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<script type="text/javascript" src="js/bignumber.js/bignumber.min.js"></script> |
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<script type="text/javascript" src="../dist/ethereum.js"></script> |
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<script type="text/javascript"> |
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var web3 = require('web3'); |
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web3.setProvider(new web3.providers.HttpSyncProvider('http://localhost:8080')); |
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var source = "" + |
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"contract Contract { " + |
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" event Incremented(bool indexed odd, uint x); " + |
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" function Contract() { " + |
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" x = 69; " + |
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" } " + |
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" function inc() { " + |
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" ++x; " + |
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" Incremented(x % 2 == 1, x); " + |
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" } " + |
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" uint x; " + |
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"}"; |
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var desc = [{ |
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"type":"event", |
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"name":"Incremented", |
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"inputs": [{"name":"odd","type":"bool","indexed":true},{"name":"x","type":"uint","indexed":false}], |
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}, { |
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"type":"function", |
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"name":"inc", |
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"inputs": [], |
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"outputs": [] |
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}]; |
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var address; |
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var contract; |
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var update = function (x) { |
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document.getElementById('result').innerText = JSON.stringify(x); |
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}; |
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var createContract = function () { |
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address = web3.eth.transact({code: web3.eth.solidity(source)}); |
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contract = web3.eth.contract(address, desc); |
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contract.Incremented({odd: true}).changed(update); |
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}; |
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var callContract = function () { |
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contract.call().inc(); |
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}; |
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</script> |
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</head> |
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<body> |
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<div> |
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<button type="button" onClick="createContract();">create contract</button> |
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</div> |
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<div> |
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<button type="button" onClick="callContract();">test1</button> |
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</div> |
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<div id="result"> |
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</div> |
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</body> |
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</html> |
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@ -0,0 +1,56 @@ |
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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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|
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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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|
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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 const.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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/// required to define ETH_BIGNUMBER_ROUNDING_MODE
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if (process.env.NODE_ENV !== 'build') { |
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var BigNumber = require('bignumber.js'); // jshint ignore:line
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} |
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var ETH_UNITS = [
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'wei',
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'Kwei',
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'Mwei',
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'Gwei',
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'szabo',
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'finney',
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'ether',
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'grand',
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'Mether',
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'Gether',
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'Tether',
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'Pether',
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'Eether',
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'Zether',
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'Yether',
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'Nether',
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'Dether',
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'Vether',
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'Uether'
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]; |
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module.exports = { |
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ETH_PADDING: 32, |
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ETH_SIGNATURE_LENGTH: 4, |
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ETH_UNITS: ETH_UNITS, |
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ETH_BIGNUMBER_ROUNDING_MODE: { ROUNDING_MODE: BigNumber.ROUND_DOWN } |
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}; |
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@ -0,0 +1,135 @@ |
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/* |
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This file is part of ethereum.js. |
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|
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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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|
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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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|
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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 event.js |
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* @authors: |
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* Marek Kotewicz <marek@ethdev.com> |
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* @date 2014 |
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*/ |
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var abi = require('./abi'); |
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var utils = require('./utils'); |
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/// filter inputs array && returns only indexed (or not) inputs
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/// @param inputs array
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/// @param bool if result should be an array of indexed params on not
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/// @returns array of (not?) indexed params
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var filterInputs = function (inputs, indexed) { |
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return inputs.filter(function (current) { |
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return current.indexed === indexed; |
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}); |
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}; |
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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 with name ' + name + ' not found'); |
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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 (event, indexed) { |
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// sort keys?
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return Object.keys(indexed).map(function (key) { |
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var inputs = [inputWithName(filterInputs(event.inputs, true), key)]; |
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var value = indexed[key]; |
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if (value instanceof Array) { |
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return value.map(function (v) { |
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return abi.formatInput(inputs, [v]); |
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});
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} |
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return abi.formatInput(inputs, [value]); |
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}); |
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}; |
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var inputParser = function (address, signature, event) { |
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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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var o = options || {}; |
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o.address = address; |
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o.topic = []; |
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o.topic.push(signature); |
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if (indexed) { |
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o.topic = o.topic.concat(indexedParamsToTopics(event, indexed)); |
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} |
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return o; |
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}; |
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}; |
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var getArgumentsObject = function (inputs, indexed, notIndexed) { |
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var indexedCopy = indexed.slice(); |
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var notIndexedCopy = notIndexed.slice(); |
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return inputs.reduce(function (acc, current) { |
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var value; |
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if (current.indexed) |
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value = indexed.splice(0, 1)[0]; |
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else |
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value = notIndexed.splice(0, 1)[0]; |
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acc[current.name] = value; |
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return acc; |
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}, {});
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}; |
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var outputParser = function (event) { |
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return function (output) { |
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var result = { |
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event: utils.extractDisplayName(event.name), |
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number: output.number, |
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args: {} |
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}; |
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if (!output.topic) { |
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return result; |
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} |
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var indexedOutputs = filterInputs(event.inputs, true); |
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var indexedData = "0x" + output.topic.slice(1, output.topic.length).map(function (topic) { return topic.slice(2); }).join(""); |
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var indexedRes = abi.formatOutput(indexedOutputs, indexedData); |
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var notIndexedOutputs = filterInputs(event.inputs, false); |
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var notIndexedRes = abi.formatOutput(notIndexedOutputs, output.data); |
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result.args = getArgumentsObject(event.inputs, indexedRes, notIndexedRes); |
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return result; |
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}; |
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}; |
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var getMatchingEvent = function (events, payload) { |
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for (var i = 0; i < events.length; i++) { |
||||||
|
var signature = abi.eventSignatureFromAscii(events[i].name);
|
||||||
|
if (signature === payload.topic[0]) { |
||||||
|
return events[i]; |
||||||
|
} |
||||||
|
} |
||||||
|
return undefined; |
||||||
|
}; |
||||||
|
|
||||||
|
|
||||||
|
module.exports = { |
||||||
|
inputParser: inputParser, |
||||||
|
outputParser: outputParser, |
||||||
|
getMatchingEvent: getMatchingEvent |
||||||
|
}; |
||||||
|
|
||||||
@ -0,0 +1,154 @@ |
|||||||
|
/* |
||||||
|
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 formatters.js |
||||||
|
* @authors: |
||||||
|
* Marek Kotewicz <marek@ethdev.com> |
||||||
|
* @date 2015 |
||||||
|
*/ |
||||||
|
|
||||||
|
if (process.env.NODE_ENV !== 'build') { |
||||||
|
var BigNumber = require('bignumber.js'); // jshint ignore:line
|
||||||
|
} |
||||||
|
|
||||||
|
var utils = require('./utils'); |
||||||
|
var c = require('./const'); |
||||||
|
|
||||||
|
/// @param string string to be padded
|
||||||
|
/// @param number of characters that result string should have
|
||||||
|
/// @param sign, by default 0
|
||||||
|
/// @returns right aligned string
|
||||||
|
var padLeft = function (string, chars, sign) { |
||||||
|
return new Array(chars - string.length + 1).join(sign ? sign : "0") + string; |
||||||
|
}; |
||||||
|
|
||||||
|
/// Formats input value to byte representation of int
|
||||||
|
/// If value is negative, return it's two's complement
|
||||||
|
/// If the value is floating point, round it down
|
||||||
|
/// @returns right-aligned byte representation of int
|
||||||
|
var formatInputInt = function (value) { |
||||||
|
var padding = c.ETH_PADDING * 2; |
||||||
|
if (value instanceof BigNumber || typeof value === 'number') { |
||||||
|
if (typeof value === 'number') |
||||||
|
value = new BigNumber(value); |
||||||
|
BigNumber.config(c.ETH_BIGNUMBER_ROUNDING_MODE); |
||||||
|
value = value.round(); |
||||||
|
|
||||||
|
if (value.lessThan(0))
|
||||||
|
value = new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16).plus(value).plus(1); |
||||||
|
value = value.toString(16); |
||||||
|
} |
||||||
|
else if (value.indexOf('0x') === 0) |
||||||
|
value = value.substr(2); |
||||||
|
else if (typeof value === 'string') |
||||||
|
value = formatInputInt(new BigNumber(value)); |
||||||
|
else |
||||||
|
value = (+value).toString(16); |
||||||
|
return padLeft(value, padding); |
||||||
|
}; |
||||||
|
|
||||||
|
/// Formats input value to byte representation of string
|
||||||
|
/// @returns left-algined byte representation of string
|
||||||
|
var formatInputString = function (value) { |
||||||
|
return utils.fromAscii(value, c.ETH_PADDING).substr(2); |
||||||
|
}; |
||||||
|
|
||||||
|
/// Formats input value to byte representation of bool
|
||||||
|
/// @returns right-aligned byte representation bool
|
||||||
|
var formatInputBool = function (value) { |
||||||
|
return '000000000000000000000000000000000000000000000000000000000000000' + (value ? '1' : '0'); |
||||||
|
}; |
||||||
|
|
||||||
|
/// Formats input value to byte representation of real
|
||||||
|
/// Values are multiplied by 2^m and encoded as integers
|
||||||
|
/// @returns byte representation of real
|
||||||
|
var formatInputReal = function (value) { |
||||||
|
return formatInputInt(new BigNumber(value).times(new BigNumber(2).pow(128)));
|
||||||
|
}; |
||||||
|
|
||||||
|
|
||||||
|
/// Check if input value is negative
|
||||||
|
/// @param value is hex format
|
||||||
|
/// @returns true if it is negative, otherwise false
|
||||||
|
var signedIsNegative = function (value) { |
||||||
|
return (new BigNumber(value.substr(0, 1), 16).toString(2).substr(0, 1)) === '1'; |
||||||
|
}; |
||||||
|
|
||||||
|
/// Formats input right-aligned input bytes to int
|
||||||
|
/// @returns right-aligned input bytes formatted to int
|
||||||
|
var formatOutputInt = function (value) { |
||||||
|
value = value || "0"; |
||||||
|
// check if it's negative number
|
||||||
|
// it it is, return two's complement
|
||||||
|
if (signedIsNegative(value)) { |
||||||
|
return new BigNumber(value, 16).minus(new BigNumber('ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 16)).minus(1); |
||||||
|
} |
||||||
|
return new BigNumber(value, 16); |
||||||
|
}; |
||||||
|
|
||||||
|
/// Formats big right-aligned input bytes to uint
|
||||||
|
/// @returns right-aligned input bytes formatted to uint
|
||||||
|
var formatOutputUInt = function (value) { |
||||||
|
value = value || "0"; |
||||||
|
return new BigNumber(value, 16); |
||||||
|
}; |
||||||
|
|
||||||
|
/// @returns input bytes formatted to real
|
||||||
|
var formatOutputReal = function (value) { |
||||||
|
return formatOutputInt(value).dividedBy(new BigNumber(2).pow(128));
|
||||||
|
}; |
||||||
|
|
||||||
|
/// @returns input bytes formatted to ureal
|
||||||
|
var formatOutputUReal = function (value) { |
||||||
|
return formatOutputUInt(value).dividedBy(new BigNumber(2).pow(128));
|
||||||
|
}; |
||||||
|
|
||||||
|
/// @returns right-aligned input bytes formatted to hex
|
||||||
|
var formatOutputHash = function (value) { |
||||||
|
return "0x" + value; |
||||||
|
}; |
||||||
|
|
||||||
|
/// @returns right-aligned input bytes formatted to bool
|
||||||
|
var formatOutputBool = function (value) { |
||||||
|
return value === '0000000000000000000000000000000000000000000000000000000000000001' ? true : false; |
||||||
|
}; |
||||||
|
|
||||||
|
/// @returns left-aligned input bytes formatted to ascii string
|
||||||
|
var formatOutputString = function (value) { |
||||||
|
return utils.toAscii(value); |
||||||
|
}; |
||||||
|
|
||||||
|
/// @returns right-aligned input bytes formatted to address
|
||||||
|
var formatOutputAddress = function (value) { |
||||||
|
return "0x" + value.slice(value.length - 40, value.length); |
||||||
|
}; |
||||||
|
|
||||||
|
|
||||||
|
module.exports = { |
||||||
|
formatInputInt: formatInputInt, |
||||||
|
formatInputString: formatInputString, |
||||||
|
formatInputBool: formatInputBool, |
||||||
|
formatInputReal: formatInputReal, |
||||||
|
formatOutputInt: formatOutputInt, |
||||||
|
formatOutputUInt: formatOutputUInt, |
||||||
|
formatOutputReal: formatOutputReal, |
||||||
|
formatOutputUReal: formatOutputUReal, |
||||||
|
formatOutputHash: formatOutputHash, |
||||||
|
formatOutputBool: formatOutputBool, |
||||||
|
formatOutputString: formatOutputString, |
||||||
|
formatOutputAddress: formatOutputAddress |
||||||
|
}; |
||||||
|
|
||||||
@ -0,0 +1,65 @@ |
|||||||
|
/* |
||||||
|
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 jsonrpc.js |
||||||
|
* @authors: |
||||||
|
* Marek Kotewicz <marek@ethdev.com> |
||||||
|
* @date 2015 |
||||||
|
*/ |
||||||
|
|
||||||
|
var messageId = 1; |
||||||
|
|
||||||
|
/// Should be called to valid json create payload object
|
||||||
|
/// @param method of jsonrpc call, required
|
||||||
|
/// @param params, an array of method params, optional
|
||||||
|
/// @returns valid jsonrpc payload object
|
||||||
|
var toPayload = function (method, params) { |
||||||
|
if (!method) |
||||||
|
console.error('jsonrpc method should be specified!'); |
||||||
|
|
||||||
|
return { |
||||||
|
jsonrpc: '2.0', |
||||||
|
method: method, |
||||||
|
params: params || [], |
||||||
|
id: messageId++ |
||||||
|
};
|
||||||
|
}; |
||||||
|
|
||||||
|
/// Should be called to check if jsonrpc response is valid
|
||||||
|
/// @returns true if response is valid, otherwise false
|
||||||
|
var isValidResponse = function (response) { |
||||||
|
return !!response && |
||||||
|
!response.error && |
||||||
|
response.jsonrpc === '2.0' && |
||||||
|
typeof response.id === 'number' && |
||||||
|
response.result !== undefined; // only undefined is not valid json object
|
||||||
|
}; |
||||||
|
|
||||||
|
/// Should be called to create batch payload object
|
||||||
|
/// @param messages, an array of objects with method (required) and params (optional) fields
|
||||||
|
var toBatchPayload = function (messages) { |
||||||
|
return messages.map(function (message) { |
||||||
|
return toPayload(message.method, message.params); |
||||||
|
});
|
||||||
|
}; |
||||||
|
|
||||||
|
module.exports = { |
||||||
|
toPayload: toPayload, |
||||||
|
isValidResponse: isValidResponse, |
||||||
|
toBatchPayload: toBatchPayload |
||||||
|
}; |
||||||
|
|
||||||
|
|
||||||
@ -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 |
||||||
|
}; |
||||||
|
|
||||||
@ -0,0 +1,142 @@ |
|||||||
|
/* |
||||||
|
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 |
||||||
|
*/ |
||||||
|
|
||||||
|
var c = require('./const'); |
||||||
|
|
||||||
|
/// 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; |
||||||
|
}; |
||||||
|
|
||||||
|
/// @returns ascii string representation of hex value prefixed with 0x
|
||||||
|
var toAscii = function(hex) { |
||||||
|
// Find termination
|
||||||
|
var str = ""; |
||||||
|
var i = 0, l = hex.length; |
||||||
|
if (hex.substring(0, 2) === '0x') { |
||||||
|
i = 2; |
||||||
|
} |
||||||
|
for (; i < l; i+=2) { |
||||||
|
var code = parseInt(hex.substr(i, 2), 16); |
||||||
|
if (code === 0) { |
||||||
|
break; |
||||||
|
} |
||||||
|
|
||||||
|
str += String.fromCharCode(code); |
||||||
|
} |
||||||
|
|
||||||
|
return str; |
||||||
|
}; |
||||||
|
|
||||||
|
var toHex = function(str) { |
||||||
|
var hex = ""; |
||||||
|
for(var i = 0; i < str.length; i++) { |
||||||
|
var n = str.charCodeAt(i).toString(16); |
||||||
|
hex += n.length < 2 ? '0' + n : n; |
||||||
|
} |
||||||
|
|
||||||
|
return hex; |
||||||
|
}; |
||||||
|
|
||||||
|
/// @returns hex representation (prefixed by 0x) of ascii string
|
||||||
|
var fromAscii = function(str, pad) { |
||||||
|
pad = pad === undefined ? 0 : pad; |
||||||
|
var hex = toHex(str); |
||||||
|
while (hex.length < pad*2) |
||||||
|
hex += "00"; |
||||||
|
return "0x" + hex; |
||||||
|
}; |
||||||
|
|
||||||
|
/// @returns display name for function/event eg. multiply(uint256) -> multiply
|
||||||
|
var extractDisplayName = function (name) { |
||||||
|
var length = name.indexOf('(');
|
||||||
|
return length !== -1 ? name.substr(0, length) : name; |
||||||
|
}; |
||||||
|
|
||||||
|
/// @returns overloaded part of function/event name
|
||||||
|
var extractTypeName = function (name) { |
||||||
|
/// TODO: make it invulnerable
|
||||||
|
var length = name.indexOf('('); |
||||||
|
return length !== -1 ? name.substr(length + 1, name.length - 1 - (length + 1)).replace(' ', '') : ""; |
||||||
|
}; |
||||||
|
|
||||||
|
/// Filters all function from input abi
|
||||||
|
/// @returns abi array with filtered objects of type 'function'
|
||||||
|
var filterFunctions = function (json) { |
||||||
|
return json.filter(function (current) { |
||||||
|
return current.type === 'function';
|
||||||
|
});
|
||||||
|
}; |
||||||
|
|
||||||
|
/// Filters all events form input abi
|
||||||
|
/// @returns abi array with filtered objects of type 'event'
|
||||||
|
var filterEvents = function (json) { |
||||||
|
return json.filter(function (current) { |
||||||
|
return current.type === 'event'; |
||||||
|
}); |
||||||
|
}; |
||||||
|
|
||||||
|
/// used to transform value/string to eth string
|
||||||
|
/// TODO: use BigNumber.js to parse int
|
||||||
|
/// TODO: add tests for it!
|
||||||
|
var toEth = function (str) { |
||||||
|
var val = typeof str === "string" ? str.indexOf('0x') === 0 ? parseInt(str.substr(2), 16) : parseInt(str) : str; |
||||||
|
var unit = 0; |
||||||
|
var units = c.ETH_UNITS; |
||||||
|
while (val > 3000 && unit < units.length - 1) |
||||||
|
{ |
||||||
|
val /= 1000; |
||||||
|
unit++; |
||||||
|
} |
||||||
|
var s = val.toString().length < val.toFixed(2).length ? val.toString() : val.toFixed(2); |
||||||
|
var replaceFunction = function($0, $1, $2) { |
||||||
|
return $1 + ',' + $2; |
||||||
|
}; |
||||||
|
|
||||||
|
while (true) { |
||||||
|
var o = s; |
||||||
|
s = s.replace(/(\d)(\d\d\d[\.\,])/, replaceFunction); |
||||||
|
if (o === s) |
||||||
|
break; |
||||||
|
} |
||||||
|
return s + ' ' + units[unit]; |
||||||
|
}; |
||||||
|
|
||||||
|
module.exports = { |
||||||
|
findIndex: findIndex, |
||||||
|
toAscii: toAscii, |
||||||
|
fromAscii: fromAscii, |
||||||
|
extractDisplayName: extractDisplayName, |
||||||
|
extractTypeName: extractTypeName, |
||||||
|
filterFunctions: filterFunctions, |
||||||
|
filterEvents: filterEvents, |
||||||
|
toEth: toEth |
||||||
|
}; |
||||||
|
|
||||||
Loading…
Reference in new issue