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support for int array types[]

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poc8
Marek Kotewicz 10 years ago
parent 2d8383d3c8
commit b457e88cd0
5 changed files with 180 additions and 109 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 69
      dist/ethereum.js
  2. 4
      dist/ethereum.js.map
  3. 2
      dist/ethereum.min.js
  4. 61
      lib/abi.js
  5. 37
      test/abi.parsers.js

69
dist/ethereum.js vendored
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@ -33,15 +33,6 @@ BigNumber.config({ ROUNDING_MODE: BigNumber.ROUND_DOWN });
var ETH_PADDING = 32;
// TODO: make these be actually accurate instead of falling back onto JS's doubles.
var hexToDec = function (hex) {
return parseInt(hex, 16).toString();
};
var decToHex = function (dec) {
return parseInt(dec).toString(16);
};
/// Finds first index of array element matching pattern
/// @param array
/// @param callback pattern
@ -86,15 +77,15 @@ var namedType = function (name) {
};
};
/// Setups input formatters for solidity types
/// @returns an array of input formatters
var setupInputTypes = function () {
var arrayType = function (type) {
return type.slice(-2) === '[]';
};
/// 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 formatInt = function (value) {
var formatInputInt = function (value) {
var padding = ETH_PADDING * 2;
if (value instanceof BigNumber || typeof value === 'number') {
if (typeof value === 'number')
@ -108,7 +99,7 @@ var setupInputTypes = function () {
else if (value.indexOf('0x') === 0)
value = value.substr(2);
else if (typeof value === 'string')
value = formatInt(new BigNumber(value));
value = formatInputInt(new BigNumber(value));
else
value = (+value).toString(16);
return padLeft(value, padding);
@ -116,25 +107,36 @@ var setupInputTypes = function () {
/// Formats input value to byte representation of string
/// @returns left-algined byte representation of string
var formatString = function (value) {
var formatInputString = function (value) {
return web3.fromAscii(value, ETH_PADDING).substr(2);
};
/// Formats input value to byte representation of bool
/// @returns right-aligned byte representation bool
var formatBool = function (value) {
var formatInputBool = function (value) {
return '000000000000000000000000000000000000000000000000000000000000000' + (value ? '1' : '0');
};
var dynamicTypeBytes = function (type, value) {
// TODO: decide what to do with array of strings
if (arrayType(type) || prefixedType('string')(type))
return formatInputInt(value.length);
return "";
};
/// Setups input formatters for solidity types
/// @returns an array of input formatters
var setupInputTypes = function () {
return [
{ type: prefixedType('uint'), format: formatInt },
{ type: prefixedType('int'), format: formatInt },
{ type: prefixedType('hash'), format: formatInt },
{ type: prefixedType('string'), format: formatString },
{ type: prefixedType('real'), format: formatInt },
{ type: prefixedType('ureal'), format: formatInt },
{ type: namedType('address'), format: formatInt },
{ type: namedType('bool'), format: formatBool }
{ type: prefixedType('uint'), format: formatInputInt },
{ type: prefixedType('int'), format: formatInputInt },
{ type: prefixedType('hash'), format: formatInputInt },
{ type: prefixedType('string'), format: formatInputString },
{ type: prefixedType('real'), format: formatInputInt },
{ type: prefixedType('ureal'), format: formatInputInt },
{ type: namedType('address'), format: formatInputInt },
{ type: namedType('bool'), format: formatInputBool }
];
};
@ -156,7 +158,11 @@ var toAbiInput = function (json, methodName, params) {
var method = json[index];
var padding = ETH_PADDING * 2;
for (var i = 0; i < method.inputs.length; i++) {
method.inputs.forEach(function (input, index) {
bytes += dynamicTypeBytes(input.type, params[index]);
});
method.inputs.forEach(function (input, i) {
var typeMatch = false;
for (var j = 0; j < inputTypes.length && !typeMatch; j++) {
typeMatch = inputTypes[j].type(method.inputs[i].type, params[i]);
@ -166,8 +172,17 @@ var toAbiInput = function (json, methodName, params) {
}
var formatter = inputTypes[j - 1].format;
bytes += (formatter ? formatter(params[i]) : params[i]);
}
var toAppend = "";
if (arrayType(method.inputs[i].type))
toAppend = params[i].reduce(function (acc, curr) {
return acc + formatter(curr);
}, "");
else
toAppend = formatter(params[i]);
bytes += toAppend;
});
return bytes;
};

4
dist/ethereum.js.map vendored
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2
dist/ethereum.min.js vendored
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61
lib/abi.js
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@ -76,15 +76,15 @@ var namedType = function (name) {
};
};
/// Setups input formatters for solidity types
/// @returns an array of input formatters
var setupInputTypes = function () {
var arrayType = function (type) {
return type.slice(-2) === '[]';
};
/// 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 formatInt = function (value) {
var formatInputInt = function (value) {
var padding = ETH_PADDING * 2;
if (value instanceof BigNumber || typeof value === 'number') {
if (typeof value === 'number')
@ -98,7 +98,7 @@ var setupInputTypes = function () {
else if (value.indexOf('0x') === 0)
value = value.substr(2);
else if (typeof value === 'string')
value = formatInt(new BigNumber(value));
value = formatInputInt(new BigNumber(value));
else
value = (+value).toString(16);
return padLeft(value, padding);
@ -106,25 +106,36 @@ var setupInputTypes = function () {
/// Formats input value to byte representation of string
/// @returns left-algined byte representation of string
var formatString = function (value) {
var formatInputString = function (value) {
return web3.fromAscii(value, ETH_PADDING).substr(2);
};
/// Formats input value to byte representation of bool
/// @returns right-aligned byte representation bool
var formatBool = function (value) {
var formatInputBool = function (value) {
return '000000000000000000000000000000000000000000000000000000000000000' + (value ? '1' : '0');
};
var dynamicTypeBytes = function (type, value) {
// TODO: decide what to do with array of strings
if (arrayType(type) || prefixedType('string')(type))
return formatInputInt(value.length);
return "";
};
/// Setups input formatters for solidity types
/// @returns an array of input formatters
var setupInputTypes = function () {
return [
{ type: prefixedType('uint'), format: formatInt },
{ type: prefixedType('int'), format: formatInt },
{ type: prefixedType('hash'), format: formatInt },
{ type: prefixedType('string'), format: formatString },
{ type: prefixedType('real'), format: formatInt },
{ type: prefixedType('ureal'), format: formatInt },
{ type: namedType('address'), format: formatInt },
{ type: namedType('bool'), format: formatBool }
{ type: prefixedType('uint'), format: formatInputInt },
{ type: prefixedType('int'), format: formatInputInt },
{ type: prefixedType('hash'), format: formatInputInt },
{ type: prefixedType('string'), format: formatInputString },
{ type: prefixedType('real'), format: formatInputInt },
{ type: prefixedType('ureal'), format: formatInputInt },
{ type: namedType('address'), format: formatInputInt },
{ type: namedType('bool'), format: formatInputBool }
];
};
@ -146,7 +157,12 @@ var toAbiInput = function (json, methodName, params) {
var method = json[index];
var padding = ETH_PADDING * 2;
for (var i = 0; i < method.inputs.length; i++) {
/// first we iterate in search for dynamic
method.inputs.forEach(function (input, index) {
bytes += dynamicTypeBytes(input.type, params[index]);
});
method.inputs.forEach(function (input, i) {
var typeMatch = false;
for (var j = 0; j < inputTypes.length && !typeMatch; j++) {
typeMatch = inputTypes[j].type(method.inputs[i].type, params[i]);
@ -156,8 +172,17 @@ var toAbiInput = function (json, methodName, params) {
}
var formatter = inputTypes[j - 1].format;
bytes += (formatter ? formatter(params[i]) : params[i]);
}
var toAppend = "";
if (arrayType(method.inputs[i].type))
toAppend = params[i].reduce(function (acc, curr) {
return acc + formatter(curr);
}, "");
else
toAppend = formatter(params[i]);
bytes += toAppend;
});
return bytes;
};

37
test/abi.parsers.js
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@ -307,8 +307,14 @@ describe('abi', function() {
var parser = abi.inputParser(d);
// then
assert.equal(parser.test('hello'), "68656c6c6f000000000000000000000000000000000000000000000000000000");
assert.equal(parser.test('world'), "776f726c64000000000000000000000000000000000000000000000000000000");
assert.equal(
parser.test('hello'),
"000000000000000000000000000000000000000000000000000000000000000568656c6c6f000000000000000000000000000000000000000000000000000000"
);
assert.equal(
parser.test('world'),
"0000000000000000000000000000000000000000000000000000000000000005776f726c64000000000000000000000000000000000000000000000000000000"
);
});
it('should use proper method name', function () {
@ -346,9 +352,34 @@ describe('abi', function() {
//then
assert.equal(parser.test(1), "0000000000000000000000000000000000000000000000000000000000000001");
assert.equal(parser.test2('hello'), "68656c6c6f000000000000000000000000000000000000000000000000000000");
assert.equal(
parser.test2('hello'),
"000000000000000000000000000000000000000000000000000000000000000568656c6c6f000000000000000000000000000000000000000000000000000000"
);
});
it('should parse input array of ints', function () {
// given
var d = clone(description);
d[0].inputs = [
{ type: "int[]" }
];
// when
var parser = abi.inputParser(d);
// then
assert.equal(
parser.test([5, 6]),
"0000000000000000000000000000000000000000000000000000000000000002" +
"0000000000000000000000000000000000000000000000000000000000000005" +
"0000000000000000000000000000000000000000000000000000000000000006"
);
});
});
describe('outputParser', function() {

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