next part of abi.js docs

1 files changed, 34 insertions, 29 deletions

diff --git a/lib/abi.js b/lib/abi.js
index cde725ff1..674ad8288 100644
--- a/lib/abi.js
+++ b/lib/abi.js
@@ -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;
@@ -44,31 +48,39 @@ 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;
 };
 
-/// 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;
-        };
+/// @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;
     };
+};
 
-    var namedType = function (name, formatter) {
-        return function (type, value) {
-            return type === name;
-        };
+/// @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 formatInt = function (value) {
         var padding = 32 * 2;
@@ -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);