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next part of abi.js docs

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This commit is contained in:
Marek Kotewicz 2015-01-14 14:19:54 +01:00
parent 6b2ec23132
commit b0a9bbf33a
4 changed files with 71 additions and 61 deletions
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63
dist/ethereum.js vendored
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@ -36,6 +36,10 @@ var decToHex = function (dec) {
return parseInt(dec).toString(16);
};
/// 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;
@ -45,32 +49,40 @@ var findIndex = function (array, callback) {
return end ? i - 1 : -1;
};
/// @returns a function that is used as a pattern for 'findIndex'
var findMethodIndex = function (json, methodName) {
return findIndex(json, function (method) {
return method.name === methodName;
});
};
/// @param string string to be padded
/// @param number of characters that result string should have
/// @returns right aligned string
var padLeft = function (string, chars) {
return new Array(chars - string.length + 1).join("0") + string;
};
/// @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 setupInputTypes = function () {
var prefixedType = function (prefix) {
return function (type, value) {
return type.indexOf(prefix) === 0;
};
};
var namedType = function (name, formatter) {
return function (type, value) {
return type === name;
};
};
var formatInt = function (value) {
var padding = 32 * 2;
if (typeof value === 'number')
@ -106,6 +118,11 @@ var setupInputTypes = function () {
var inputTypes = setupInputTypes();
/// Formats input params to bytes
/// @param contract json abi
/// @param name of the method that we want to use
/// @param array of params that will be formatted to bytes
/// @returns bytes representation of input params
var toAbiInput = function (json, methodName, params) {
var bytes = "";
var index = findMethodIndex(json, methodName);
@ -136,23 +153,6 @@ var toAbiInput = function (json, methodName, params) {
/// @returns an array of output formatters
var setupOutputTypes = function () {
/// @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) {
var expected = prefix;
return type.indexOf(expected) === 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;
};
};
/// @returns input bytes formatted to int
var formatInt = function (value) {
return value.length <= 8 ? +parseInt(value, 16) : hexToDec(value);
@ -187,6 +187,11 @@ var setupOutputTypes = function () {
var outputTypes = setupOutputTypes();
/// Formats output bytes back to param list
/// @param contract json abi
/// @param name of the method that we want to use
/// @param bytes representtion of output
/// @returns array of output params
var fromAbiOutput = function (json, methodName, output) {
var index = findMethodIndex(json, methodName);

4
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

63
lib/abi.js
View File

@ -35,6 +35,10 @@ var decToHex = function (dec) {
return parseInt(dec).toString(16);
};
/// 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;
@ -44,32 +48,40 @@ var findIndex = function (array, callback) {
return end ? i - 1 : -1;
};
/// @returns a function that is used as a pattern for 'findIndex'
var findMethodIndex = function (json, methodName) {
return findIndex(json, function (method) {
return method.name === methodName;
});
};
/// @param string string to be padded
/// @param number of characters that result string should have
/// @returns right aligned string
var padLeft = function (string, chars) {
return new Array(chars - string.length + 1).join("0") + string;
};
/// @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 setupInputTypes = function () {
var prefixedType = function (prefix) {
return function (type, value) {
return type.indexOf(prefix) === 0;
};
};
var namedType = function (name, formatter) {
return function (type, value) {
return type === name;
};
};
var formatInt = function (value) {
var padding = 32 * 2;
if (typeof value === 'number')
@ -105,6 +117,11 @@ var setupInputTypes = function () {
var inputTypes = setupInputTypes();
/// Formats input params to bytes
/// @param contract json abi
/// @param name of the method that we want to use
/// @param array of params that will be formatted to bytes
/// @returns bytes representation of input params
var toAbiInput = function (json, methodName, params) {
var bytes = "";
var index = findMethodIndex(json, methodName);
@ -135,23 +152,6 @@ var toAbiInput = function (json, methodName, params) {
/// @returns an array of output formatters
var setupOutputTypes = function () {
/// @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) {
var expected = prefix;
return type.indexOf(expected) === 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;
};
};
/// @returns input bytes formatted to int
var formatInt = function (value) {
return value.length <= 8 ? +parseInt(value, 16) : hexToDec(value);
@ -186,6 +186,11 @@ var setupOutputTypes = function () {
var outputTypes = setupOutputTypes();
/// Formats output bytes back to param list
/// @param contract json abi
/// @param name of the method that we want to use
/// @param bytes representtion of output
/// @returns array of output params
var fromAbiOutput = function (json, methodName, output) {
var index = findMethodIndex(json, methodName);