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contract.js simplified

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This commit is contained in:
Marek Kotewicz 2015-01-29 13:32:32 +01:00
parent 842b8cf323
commit c8ee08c24b
6 changed files with 289 additions and 246 deletions
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275
dist/ethereum.js vendored
View File

@ -428,7 +428,7 @@ module.exports = {
};
},{"./web3":7}],2:[function(require,module,exports){
},{"./web3":8}],2:[function(require,module,exports){
/*
This file is part of ethereum.js.
@ -453,6 +453,129 @@ module.exports = {
var web3 = require('./web3');
var abi = require('./abi');
var eventImplementation = require('./event');
var addFunctionRelatedPropertiesToContract = function (contract) {
contract.call = function (options) {
contract._isTransact = false;
contract._options = options;
return contract;
};
contract.transact = function (options) {
contract._isTransact = true;
contract._options = options;
return contract;
};
contract._options = {};
['gas', 'gasPrice', 'value', 'from'].forEach(function(p) {
contract[p] = function (v) {
contract._options[p] = v;
return contract;
};
});
};
var addFunctionsToContract = function (contract, desc, address) {
var inputParser = abi.inputParser(desc);
var outputParser = abi.outputParser(desc);
// create contract functions
abi.filterFunctions(desc).forEach(function (method) {
var displayName = abi.methodDisplayName(method.name);
var typeName = abi.methodTypeName(method.name);
var impl = function () {
var params = Array.prototype.slice.call(arguments);
var signature = abi.methodSignature(method.name);
var parsed = inputParser[displayName][typeName].apply(null, params);
var options = contract._options || {};
options.to = address;
options.data = signature + parsed;
var isTransact = contract._isTransact === true || (contract._isTransact !== false && !method.constant);
var collapse = options.collapse !== false;
// reset
contract._options = {};
contract._isTransact = null;
if (isTransact) {
// it's used byt natspec.js
// TODO: figure out better way to solve this
web3._currentContractAbi = desc;
web3._currentContractAddress = address;
web3._currentContractMethodName = method.name;
web3._currentContractMethodParams = params;
// transactions do not have any output, cause we do not know, when they will be processed
web3.eth.transact(options);
return;
}
var output = web3.eth.call(options);
var ret = outputParser[displayName][typeName](output);
if (collapse)
{
if (ret.length === 1)
ret = ret[0];
else if (ret.length === 0)
ret = null;
}
return ret;
};
if (contract[displayName] === undefined) {
contract[displayName] = impl;
}
contract[displayName][typeName] = impl;
});
};
var addEventRelatedPropertiesToContract = function (contract, desc, address) {
contract.address = address;
Object.defineProperty(contract, 'topics', {
get: function() {
return abi.filterEvents(desc).map(function (e) {
return abi.methodSignature(e.name);
});
}
});
};
var addEventsToContract = function (contract, desc, address) {
// create contract events
abi.filterEvents(desc).forEach(function (e) {
var impl = function () {
var params = Array.prototype.slice.call(arguments);
var signature = abi.methodSignature(e.name);
var eventImpl = eventImplementation(address, signature);
var o = eventImpl.apply(null, params);
return web3.eth.watch(o);
};
// TODO: rename these methods, cause they are used not only for methods
var displayName = abi.methodDisplayName(e.name);
var typeName = abi.methodTypeName(e.name);
if (contract[displayName] === undefined) {
contract[displayName] = impl;
}
contract[displayName][typeName] = impl;
});
};
/**
* This method should be called when we want to call / transact some solidity method from javascript
@ -490,123 +613,13 @@ var contract = function (address, desc) {
}
});
var inputParser = abi.inputParser(desc);
var outputParser = abi.outputParser(desc);
var result = {
address: address,
};
Object.defineProperty(result, 'topics', {
get: function() {
return abi.filterEvents(desc).map(function (event) {
return abi.methodSignature(event.name);
});
}
});
result.call = function (options) {
result._isTransact = false;
result._options = options;
return result;
};
result.transact = function (options) {
result._isTransact = true;
result._options = options;
return result;
};
result._options = {};
['gas', 'gasPrice', 'value', 'from'].forEach(function(p) {
result[p] = function (v) {
result._options[p] = v;
return result;
};
});
// create contract functions
abi.filterFunctions(desc).forEach(function (method) {
var displayName = abi.methodDisplayName(method.name);
var typeName = abi.methodTypeName(method.name);
var impl = function () {
var params = Array.prototype.slice.call(arguments);
var signature = abi.methodSignature(method.name);
var parsed = inputParser[displayName][typeName].apply(null, params);
var options = result._options || {};
options.to = address;
options.data = signature + parsed;
var isTransact = result._isTransact === true || (result._isTransact !== false && !method.constant);
var collapse = options.collapse !== false;
// reset
result._options = {};
result._isTransact = null;
if (isTransact) {
// it's used byt natspec.js
// TODO: figure out better way to solve this
web3._currentContractAbi = desc;
web3._currentContractAddress = address;
web3._currentContractMethodName = method.name;
web3._currentContractMethodParams = params;
// transactions do not have any output, cause we do not know, when they will be processed
web3.eth.transact(options);
return;
}
var output = web3.eth.call(options);
var ret = outputParser[displayName][typeName](output);
if (collapse)
{
if (ret.length === 1)
ret = ret[0];
else if (ret.length === 0)
ret = null;
}
return ret;
};
if (result[displayName] === undefined) {
result[displayName] = impl;
}
result[displayName][typeName] = impl;
});
// create contract events
abi.filterEvents(desc).forEach(function (event) {
// TODO: rename these methods, cause they are used not only for methods
var displayName = abi.methodDisplayName(event.name);
var typeName = abi.methodTypeName(event.name);
var impl = function (options) {
var signature = abi.methodSignature(event.name);
var o = options || {};
o.address = o.address || address;
o.topics = o.topics || [];
o.topics.push(signature);
return web3.eth.watch(o);
};
if (result[displayName] === undefined) {
result[displayName] = impl;
}
result[displayName][typeName] = impl;
});
var result = {};
addFunctionRelatedPropertiesToContract(result);
addFunctionsToContract(result, desc, address);
addEventRelatedPropertiesToContract(result, desc, address);
addEventsToContract(result, desc, address);
return result;
};
@ -614,7 +627,25 @@ var contract = function (address, desc) {
module.exports = contract;
},{"./abi":1,"./web3":7}],3:[function(require,module,exports){
},{"./abi":1,"./event":3,"./web3":8}],3:[function(require,module,exports){
var abi = require('./abi');
var implementationOfEvent = function (address, signature) {
return function (options) {
var o = options || {};
o.address = o.address || address;
o.topics = o.topics || [];
o.topics.push(signature);
return o;
};
};
module.exports = implementationOfEvent;
},{"./abi":1}],4:[function(require,module,exports){
/*
This file is part of ethereum.js.
@ -689,7 +720,7 @@ Filter.prototype.logs = function () {
module.exports = Filter;
},{"./web3":7}],4:[function(require,module,exports){
},{"./web3":8}],5:[function(require,module,exports){
/*
This file is part of ethereum.js.
@ -761,7 +792,7 @@ HttpSyncProvider.prototype.send = function (payload) {
module.exports = HttpSyncProvider;
},{}],5:[function(require,module,exports){
},{}],6:[function(require,module,exports){
/*
This file is part of ethereum.js.
@ -873,7 +904,7 @@ ProviderManager.prototype.stopPolling = function (pollId) {
module.exports = ProviderManager;
},{"./web3":7}],6:[function(require,module,exports){
},{"./web3":8}],7:[function(require,module,exports){
/*
This file is part of ethereum.js.
@ -907,7 +938,7 @@ QtSyncProvider.prototype.send = function (payload) {
module.exports = QtSyncProvider;
},{}],7:[function(require,module,exports){
},{}],8:[function(require,module,exports){
/*
This file is part of ethereum.js.
@ -1249,7 +1280,7 @@ web3.abi = require('./lib/abi');
module.exports = web3;
},{"./lib/abi":1,"./lib/contract":2,"./lib/filter":3,"./lib/httpsync":4,"./lib/providermanager":5,"./lib/qtsync":6,"./lib/web3":7}]},{},["web3"])
},{"./lib/abi":1,"./lib/contract":2,"./lib/filter":4,"./lib/httpsync":5,"./lib/providermanager":6,"./lib/qtsync":7,"./lib/web3":8}]},{},["web3"])
//# sourceMappingURL=ethereum.js.map

6
dist/ethereum.js.map vendored
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2
dist/ethereum.min.js vendored
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File diff suppressed because one or more lines are too long

243
lib/contract.js
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@ -22,6 +22,129 @@
var web3 = require('./web3');
var abi = require('./abi');
var eventImplementation = require('./event');
var addFunctionRelatedPropertiesToContract = function (contract) {
contract.call = function (options) {
contract._isTransact = false;
contract._options = options;
return contract;
};
contract.transact = function (options) {
contract._isTransact = true;
contract._options = options;
return contract;
};
contract._options = {};
['gas', 'gasPrice', 'value', 'from'].forEach(function(p) {
contract[p] = function (v) {
contract._options[p] = v;
return contract;
};
});
};
var addFunctionsToContract = function (contract, desc, address) {
var inputParser = abi.inputParser(desc);
var outputParser = abi.outputParser(desc);
// create contract functions
abi.filterFunctions(desc).forEach(function (method) {
var displayName = abi.methodDisplayName(method.name);
var typeName = abi.methodTypeName(method.name);
var impl = function () {
var params = Array.prototype.slice.call(arguments);
var signature = abi.methodSignature(method.name);
var parsed = inputParser[displayName][typeName].apply(null, params);
var options = contract._options || {};
options.to = address;
options.data = signature + parsed;
var isTransact = contract._isTransact === true || (contract._isTransact !== false && !method.constant);
var collapse = options.collapse !== false;
// reset
contract._options = {};
contract._isTransact = null;
if (isTransact) {
// it's used byt natspec.js
// TODO: figure out better way to solve this
web3._currentContractAbi = desc;
web3._currentContractAddress = address;
web3._currentContractMethodName = method.name;
web3._currentContractMethodParams = params;
// transactions do not have any output, cause we do not know, when they will be processed
web3.eth.transact(options);
return;
}
var output = web3.eth.call(options);
var ret = outputParser[displayName][typeName](output);
if (collapse)
{
if (ret.length === 1)
ret = ret[0];
else if (ret.length === 0)
ret = null;
}
return ret;
};
if (contract[displayName] === undefined) {
contract[displayName] = impl;
}
contract[displayName][typeName] = impl;
});
};
var addEventRelatedPropertiesToContract = function (contract, desc, address) {
contract.address = address;
Object.defineProperty(contract, 'topics', {
get: function() {
return abi.filterEvents(desc).map(function (e) {
return abi.methodSignature(e.name);
});
}
});
};
var addEventsToContract = function (contract, desc, address) {
// create contract events
abi.filterEvents(desc).forEach(function (e) {
var impl = function () {
var params = Array.prototype.slice.call(arguments);
var signature = abi.methodSignature(e.name);
var eventImpl = eventImplementation(address, signature);
var o = eventImpl.apply(null, params);
return web3.eth.watch(o);
};
// TODO: rename these methods, cause they are used not only for methods
var displayName = abi.methodDisplayName(e.name);
var typeName = abi.methodTypeName(e.name);
if (contract[displayName] === undefined) {
contract[displayName] = impl;
}
contract[displayName][typeName] = impl;
});
};
/**
* This method should be called when we want to call / transact some solidity method from javascript
@ -59,123 +182,13 @@ var contract = function (address, desc) {
}
});
var inputParser = abi.inputParser(desc);
var outputParser = abi.outputParser(desc);
var result = {
address: address,
};
Object.defineProperty(result, 'topics', {
get: function() {
return abi.filterEvents(desc).map(function (event) {
return abi.methodSignature(event.name);
});
}
});
result.call = function (options) {
result._isTransact = false;
result._options = options;
return result;
};
result.transact = function (options) {
result._isTransact = true;
result._options = options;
return result;
};
result._options = {};
['gas', 'gasPrice', 'value', 'from'].forEach(function(p) {
result[p] = function (v) {
result._options[p] = v;
return result;
};
});
// create contract functions
abi.filterFunctions(desc).forEach(function (method) {
var displayName = abi.methodDisplayName(method.name);
var typeName = abi.methodTypeName(method.name);
var impl = function () {
var params = Array.prototype.slice.call(arguments);
var signature = abi.methodSignature(method.name);
var parsed = inputParser[displayName][typeName].apply(null, params);
var options = result._options || {};
options.to = address;
options.data = signature + parsed;
var isTransact = result._isTransact === true || (result._isTransact !== false && !method.constant);
var collapse = options.collapse !== false;
// reset
result._options = {};
result._isTransact = null;
if (isTransact) {
// it's used byt natspec.js
// TODO: figure out better way to solve this
web3._currentContractAbi = desc;
web3._currentContractAddress = address;
web3._currentContractMethodName = method.name;
web3._currentContractMethodParams = params;
// transactions do not have any output, cause we do not know, when they will be processed
web3.eth.transact(options);
return;
}
var output = web3.eth.call(options);
var ret = outputParser[displayName][typeName](output);
if (collapse)
{
if (ret.length === 1)
ret = ret[0];
else if (ret.length === 0)
ret = null;
}
return ret;
};
if (result[displayName] === undefined) {
result[displayName] = impl;
}
result[displayName][typeName] = impl;
});
// create contract events
abi.filterEvents(desc).forEach(function (event) {
// TODO: rename these methods, cause they are used not only for methods
var displayName = abi.methodDisplayName(event.name);
var typeName = abi.methodTypeName(event.name);
var impl = function (options) {
var signature = abi.methodSignature(event.name);
var o = options || {};
o.address = o.address || address;
o.topics = o.topics || [];
o.topics.push(signature);
return web3.eth.watch(o);
};
if (result[displayName] === undefined) {
result[displayName] = impl;
}
result[displayName][typeName] = impl;
});
var result = {};
addFunctionRelatedPropertiesToContract(result);
addFunctionsToContract(result, desc, address);
addEventRelatedPropertiesToContract(result, desc, address);
addEventsToContract(result, desc, address);
return result;
};

2
lib/event.js
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@ -1,7 +1,7 @@
var abi = require('./abi');
var implementationOfEvent = function (event, address, signature) {
var implementationOfEvent = function (address, signature) {
return function (options) {
var o = options || {};

7
test/event.js
View File

@ -7,13 +7,9 @@ describe('event', function () {
// given
var address = '0x012345';
var signature = '0x987654';
var e = {
name: 'test',
type: 'event',
};
// when
var impl = event(e, address, signature);
var impl = event(address, signature);
var result = impl();
// then
@ -23,3 +19,4 @@ describe('event', function () {
});
});