689 lines
24 KiB
JavaScript
689 lines
24 KiB
JavaScript
'use strict';
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var Wallet = require('../index.js');
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var solc = require('solc');
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var ethereumVm = require('ethereumjs-vm');
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var ethereumUtil = require('ethereumjs-util');
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var BN = Wallet.utils.BN;
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var utils = require('./utils.js');
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var random = utils.random;
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// Create the indent given a tabstop
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function indent(tabs) {
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var indent = new Buffer(tabs * 4);
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indent.fill(32);
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return indent.toString('utf8')
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}
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/**
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*
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*
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*/
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function createContractOutput(types, values) {
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var source = 'contract Test {\n';
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source += ' function test() constant returns (' + types.join(', ') + ') {\n';
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var returns = [];
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for (var i = 0; i < types.length; i++) {
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var name = String.fromCharCode(97 + i);
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// Array type; do a deep copy
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if (types[i].indexOf('[') >= 0) {
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// Each count (or optionally empty) array type
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var arrays = types[i].match(/\[[0-9]*\]/g);
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// Allocate the space (only dynamic arrays require new)
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source += indent(2) + types[i] + ' memory ' + name;
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if (arrays[arrays.length - 1] === '[]') {
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source += ' = new ' + types[i] + '(' + values[i].length+ ')';
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}
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source +=';\n';
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var baseType = types[i].substring(0, types[i].indexOf('['));
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function recursiveSet(item, indices) {
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if (Array.isArray(item)) {
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item.forEach(function(item, index) {
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var i = indices.slice();
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i.unshift(index);
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recursiveSet(item, i);
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});
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} else {
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var loc = '';
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indices.forEach(function(index) {
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loc = '[' + index + ']' + loc;
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})
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if (item instanceof BN) { item = item.toString(10); }
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source += indent(2) + name + loc + ' = ' + baseType + '(' + item + ');\n';
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}
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}
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recursiveSet(values[i], []);
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// Dynamic type: bytes
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} else if (types[i] === 'bytes') {
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source += indent(2) + 'bytes memory ' + name + ' = new bytes(' + values[i].length + ');\n';
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source += indent(2) + 'assembly {\n'
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source += indent(3) + 'mstore(' + name + ', ' + values[i].length + ')\n';
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for (var j = 0; j < values[i].length; j++) {
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source += indent(3) + 'mstore8(add(' + name + ', ' + (32 + j) + '), ' + values[i][j] + ')\n';
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}
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source += indent(2) + '}\n'
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/*
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var value = '';
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for (var j = 0; j < values[i].length; j++) {
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value += '\\' + 'x' + values[i].slice(j, j + 1).toString('hex');
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}
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source += ' bytes memory ' + name + ' = "' + value + '";\n';
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*/
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// Dynamic type: string
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} else if (types[i] === 'string') {
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source += ' string memory ' + name + ' = "' + values[i] + '";\n';
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// Static type; just use the stack
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} else {
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source += ' ' + types[i] + ' ' + name + ' = ' + types[i] + '(' + values[i] + ');\n';
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}
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// Track the name to return
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returns.push(name);
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}
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// Return the values
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source += ' return (' + returns.join(', ') + ');\n';
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source += ' }\n';
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source += '}\n';
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try {
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var contract = solc.compile(source, 0);
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contract = contract.contracts.Test;
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contract.sourceCode= source;
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return contract;
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} catch (error) {
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console.log('Failed to compile ========');
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console.log({types: types, values: values, contract: contract});
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console.log(source);
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console.log('========');
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process.exit();
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}
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}
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/**
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* createContract(types)
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*
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* Creates the source code for a function that takes in the types,
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* creates a deep copy of them and returns them and compiles the
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* contract.
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*/
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/* I don't need this anymore, I think?
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function createContract(types) {
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var signature = [];
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for (var i = 0; i < types.length; i++) {
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var name = String.fromCharCode(97 + i);
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signature.push(types[i] + ' _' + name);
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}
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var returns = [];
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var maxCounter = -1;
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// Begin a contract and test function
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var source = 'contract Test {\n';
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source += ' function test(' + signature.join(', ') + ') constant returns (' + types.join(', ') + ') {\n';
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for (var i = 0; i < types.length; i++) {
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var name = String.fromCharCode(97 + i);
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// Array type; do a deep copy
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if (types[i].indexOf('[') >= 0) {
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// Each count (or optionally empty) array type
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var arrays = types[i].match(/\[[0-9]*\]/g);
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// Allocate the space
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source += indent(2) + types[i] + ' memory ' + name;
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if (arrays[arrays.length - 1] === '[]') {
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source += ' = new ' + types[i] + '(_' + name + '.length)';
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}
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source +=';\n';
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// Build the for loops to copy
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var current = name;
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for (var j = 0; j < arrays.length; j++) {
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var counter = 'l' + String.fromCharCode(97 + j);
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if (j > maxCounter) {
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source += indent(j + 2) + 'uint ' + counter + ';\n';
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maxCounter = j;
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}
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source += indent(j + 2) + 'for (' + counter + ' = 0; ' + counter + ' < _' + current + '.length; ' + counter+ '++) {\n';
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current += '[' + counter + ']'; //arrays[j];
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}
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// Do the copy of an individual value
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var loc = name;
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for (var j = 0; j < arrays.length; j++) {
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loc += '[l' + String.fromCharCode(97 + j) + ']';
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}
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source += indent(2 + arrays.length) + loc + ' = _' + loc + ';\n';
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// Close all the for loops
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for (var j = arrays.length - 1; j >= 0; j--) {
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source += indent(j + 2) + '}\n';
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}
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// Dynamic type; new memory
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} else if (types[i] === 'bytes' || types[i] === 'string') {
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source += ' ' + types[i] + ' memory ' + name + ' = _' + name + ';\n';
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// Static type; just use the stack
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} else {
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source += ' ' + types[i] + ' ' + name + ' = _' + name + ';\n';
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}
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// Track the name to return
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returns.push(name);
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}
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// Return the copied values
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source += ' return (' + returns.join(', ') + ');\n';
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// Done the function and contract
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source += ' }\n';
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source += '}';
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var contract = solc.compile(source, 0);
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contract = contract.contracts.Test;
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contract.sourceCode= source;
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return contract;
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}
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*/
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module.exports = function(test) {
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//var coderWeb3 = require('./node_modules/web3/lib/solidity/coder.js');
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//coderWeb3._name = 'web3';
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var coderAbi = require('ethereumjs-abi');
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var coderEjs = {
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encodeParams: function(types, values) {
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return coderAbi.rawEncode(types, values).toString('hex');
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},
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decodeParams: function(types, data) {
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return coderAbi.rawDecode(types, data);
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},
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_name: 'ejs'
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}
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function dumpHex(data) {
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for (var i = 2; i < data.length; i += 64) {
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console.log(' ' + data.substring(i, i + 64));
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}
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}
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function recursiveEqual(a, b) {
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function fail() {
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return false;
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}
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if (typeof(a) === 'number') { a = new BN(a); }
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if (typeof(b) === 'number') { b = new BN(b); }
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if (utils.isHexString(a)) { a = utils.hexOrBuffer(a); }
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if (utils.isHexString(b)) { b = utils.hexOrBuffer(b); }
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if (a.eq) {
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if (!b.eq || !a.eq(b)) { return fail(); }
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return true;
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}
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if (Buffer.isBuffer(a)) {
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if (!Buffer.isBuffer(b) || Buffer.compare(a, b) !== 0) { return fail(); }
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return true;
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}
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if (Array.isArray(a)) {
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if (!Array.isArray(b) || a.length !== b.length) { return fail(); }
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for (var i = 0; i < a.length; i++) {
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if (!recursiveEqual(a[i], b[i])) { return fail(); }
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}
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return true;
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}
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if (a !== b) { return fail(); }
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return true;
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}
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function checkLib(types, values, coder) {
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//console.log(types, values, coder._name);
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var officialData = '0x' + coder.encodeParams(types, values);
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var ethersData = Wallet._Contract.Interface.encodeParams(types, values);
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if (officialData !== ethersData) {
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test.ok(false, 'encoded value did not match ' + coder._name);
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console.log('coder=' + coder._name);
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console.log('types=' + JSON.stringify(types, {depth: null}));
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console.log('values=' + JSON.stringify(values, {depth: null}));
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console.log('officialData=');
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dumpHex(officialData);
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console.log('ethersData=');
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dumpHex(ethersData);
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}
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var ethersValues = Wallet._Contract.Interface.decodeParams(types, officialData);
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if (!recursiveEqual(values, ethersValues)) {
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test.ok(false, 'decoded value did not match ' + coder._name);
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console.log('coder=' + coder._name);
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console.log('types=' + JSON.stringify(types, {depth: null}));
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console.log('values=' + JSON.stringify(values, {depth: null}));
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console.log('officialData=');
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dumpHex(officialData);
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console.log('ethersValues=' + JSON.stringify(ethersValues, {depth: null}));
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}
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}
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var checkPromises = [];
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var nextTestId = 0;
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var remaining = {};
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function check(types, values, normalizedValues) {
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if (!normalizedValues) { normalizedValues = values; }
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// First make sure we agree with ourself
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var ethersData = Wallet._Contract.Interface.encodeParams(types, values);
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var ethersValues = Wallet._Contract.Interface.decodeParams(types, ethersData);
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var okSelf = recursiveEqual(normalizedValues, ethersValues);
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test.ok(okSelf, "self encode/decode failed");
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if (!okSelf) {
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console.log('okSelf', okSelf, types, values, normalizedValues, ethersValues);
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}
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checkPromises.push(new Promise(function(resolve, reject) {
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var testId = (nextTestId++);
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remaining[testId] = true;
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// Use this when a contracts "hangs" (ie. 0-length arrays seem to hang the VM)
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//console.log('a', testId, types, values);
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try {
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var contract = createContractOutput(types, values);
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var contractInterface = new Wallet._Contract.Interface(JSON.parse(contract.interface));
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var call = contractInterface.test.apply(contractInterface);
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var vm = new ethereumVm();
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vm.runCode({
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code: new Buffer(contract.runtimeBytecode, 'hex'),
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data: new Buffer(call.data.substring(2), 'hex'),
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gasLimit: '0x80000000'
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}, function(error, result) {
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delete remaining[testId];
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// Use this when contract hangs (see the above try)
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//console.log('b', testId, Object.keys(remaining).join(','));
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try {
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var vmData = '0x' + result.return.toString('hex');
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test.equal(ethersData, vmData, 'Failed to generate same output as VM');
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if (ethersData !== vmData) {
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console.log('\n\n');
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console.log(contract.sourceCode);
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console.log({
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types: types,
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values: values
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});
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console.log('ethers=');
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dumpHex(ethersData);
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console.log('vm=');
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dumpHex('0x' + result.return.toString('hex'));
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}
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resolve();
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} catch(error) {
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reject(error);
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}
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});
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} catch(error) {
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console.log(error);
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reject(error);
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}
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}));
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return;
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// Second, compile and feed to a solidity contract
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checkPromises.push(new Promise(function(resolve, reject) {
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var contract = createContract(types);
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var contractInterface = new Wallet._Contract.Interface(JSON.parse(contract.interface));
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var call = contractInterface.test.apply(contractInterface, values);
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var vm = new ethereumVm();
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vm.runCode({
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code: new Buffer(contract.runtimeBytecode, 'hex'),
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data: new Buffer(call.data.substring(2), 'hex'),
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gasLimit: '0x80000000'
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}, function(error, result) {
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var vmData = '0x' + result.return.toString('hex');
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var okData = (vmData === ethersData);
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test.ok(okData, 'Data did not match');
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if (!okData) {
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console.dir({
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types: types,
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contract: contract.sourceCode,
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values: values
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}, {depth: null});
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console.log('vm.data=');
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dumpHex(vmData)
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console.log('ethers.data=');
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dumpHex(ethersData)
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}
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var vmValues = call.parse(vmData)
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var okValues = recursiveEqual(normalizedValues, vmValues);
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test.ok(okValues, 'Values did not match');
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if (!okValues) {
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console.dir({
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types: types,
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contract: contract.sourceCode,
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values: values,
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normalized: normalizedValues,
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vmValues: vmValues
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}, {depth: null});
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}
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resolve();
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});
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}));
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return;
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// And thirdly try ocmparing ourselves against ethereumjs-lib (ignoring
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// cases which they currently have open bugs/issues)
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var checkTypes = types.join(',');
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function has(regex) { return checkTypes.match(regex); }
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var hasDynamic = (has(/\[\]/) || has(/bytes([^0-9]|$)/) || has(/string/));
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var hasDynamicArray = has(/\[\]/);
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var hasFixedArray = has(/\[[0-9]+\]/);
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var hasNestedArray = has(/\]\[/);
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if (!hasFixedArray && !hasDynamicArray) {
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try {
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checkLib(types, values, coderEjs);
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} catch (error) {
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// Bugs in coder
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if (error.message === "Cannot read property '1' of null") {
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return;
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} else if (error.message.match(/^invalid /)) {
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return;
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}
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if (error.message.match(/^Number can only safely store up to/)) {
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return;
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}
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throw error;
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}
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}
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}
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// Test cases: https://github.com/ethereum/solidity.js/blob/master/test/coder.decodeParam.js
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check(['int'], [new BN(1)]);
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check(['int'], [new BN(16)]);
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check(['int'], [new BN(-1)]);
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check(['int256'], [new BN(1)]);
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check(['int256'], [new BN(16)]);
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check(['int256'], [new BN(-1)]);
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check(['int8'], [new BN(16)]);
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check(['int32'], [new BN(16)]);
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check(['int64'], [new BN(16)]);
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check(['int128'], [new BN(16)]);
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check(['uint'], [new BN(1)]);
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check(['uint'], [new BN(16)]);
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check(['uint'], [new BN(-1)], [new BN('ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 16)]);
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check(['uint256'], [new BN(1)]);
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check(['uint256'], [new BN(16)]);
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check(['uint256'], [new BN(-1)], [new BN('ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 16)]);
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check(['uint8'], [new BN(16)]);
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check(['uint32'], [new BN(16)]);
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check(['uint64'], [new BN(16)]);
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check(['uint128'], [new BN(16)]);
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check(['int', 'int'], [new BN(1), new BN(2)]);
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check(['int', 'int'], [new BN(1), new BN(2)]);
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check(['int[2]', 'int'], [[new BN(12), new BN(22)], new BN(3)]);
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check(['int[2]', 'int[]'], [[new BN(32), new BN(42)], [new BN(3), new BN(4), new BN(5)]]);
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check(
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['bytes32'],
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['0x6761766f66796f726b0000000000000000000000000000000000000000000000']
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);
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check(
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['bytes'],
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[new Buffer('6761766f66796f726b', 'hex')]
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);
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check(
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['string'],
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['\uD835\uDF63']
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);
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check(
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['address', 'string', 'bytes6[4]', 'int'],
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[
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"0x97916ef549947a3e0d321485a31dd2715a97d455",
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"foobar2",
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["0xa165ab0173c6", "0xf0f37bee9244", "0xc8dc0bf08d2b", "0xc8dc0bf08d2b"],
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34
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]
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);
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check(
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['bytes32'],
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['0x731a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b']
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);
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check(
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['bytes'],
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[new Buffer('731a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b')]
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);
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check(
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['bytes32[2]'],
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[['0x731a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b',
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'0x731a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b']]
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);
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check(
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['bytes'],
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[new Buffer('131a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b' +
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'231a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b' +
|
|
'331a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b')]
|
|
);
|
|
|
|
// Some extra checks for width and sign tests
|
|
check(['uint32'], [14], [new BN(14)]);
|
|
check(['uint32'], [14], [new BN(14)]);
|
|
check(['uint32'], [-14], [new BN(0xfffffff2)]);
|
|
check(['int32'], [14], [new BN(14)]);
|
|
check(['int32'], [-14], [new BN(-14)]);
|
|
|
|
check(['int8'], [new BN(1)], [new BN(1)]);
|
|
check(['int8'], [new BN(-1)], [new BN(-1)]);
|
|
check(['int8'], [new BN(189)], [new BN(-67)]);
|
|
check(['int8'], [new BN(-189)], [new BN(67)]);
|
|
check(['int8'], [new BN(257)], [new BN(1)]);
|
|
|
|
check(['uint8'], [new BN(343)], [new BN(87)]);
|
|
check(['uint8'], [new BN(-1)], [new BN(255)]);
|
|
|
|
check(['uint56[5]'], [[new BN(639), new BN(227), new BN(727), new BN(325), new BN(146)]]);
|
|
|
|
function randomTypeValue(onlyStatic) {
|
|
switch (random(0, (onlyStatic ? 5: 8))) {
|
|
case 0:
|
|
var size = random(1, 33);
|
|
return {
|
|
type: 'bytes' + size,
|
|
value: function() {
|
|
var value = '0x' + utils.randomBuffer(size).toString('hex');
|
|
return {
|
|
value: value,
|
|
normalized: value
|
|
}
|
|
}
|
|
}
|
|
case 1:
|
|
var signed = (random(0, 2) === 0);
|
|
var type = (!signed ? 'u': '') + 'int';
|
|
var size = 32;
|
|
if (random(0, 4) > 0) {
|
|
size = random(1, 33)
|
|
type += (8 * size);
|
|
}
|
|
|
|
return {
|
|
type: type,
|
|
value: function() {
|
|
var mask = '';
|
|
for (var i = 0; i < size; i++) { mask += 'ff'; }
|
|
|
|
var value = random(-500, 1000);
|
|
var normalized = (new BN(value)).toTwos(size * 8).and(new BN(mask, 16));
|
|
if (signed) {
|
|
normalized = normalized.fromTwos(size * 8);
|
|
}
|
|
/*
|
|
if (!signed && value < 0) {
|
|
normalized = normalized.toTwos(size * 8);
|
|
}
|
|
*/
|
|
return {
|
|
value: value,
|
|
normalized: normalized
|
|
};
|
|
}
|
|
}
|
|
case 2:
|
|
return {
|
|
type: 'address',
|
|
value: function() {
|
|
var value = '0x' + utils.randomBuffer(20).toString('hex');
|
|
return {
|
|
value: value,
|
|
normalized: value
|
|
};
|
|
}
|
|
}
|
|
case 3:
|
|
return {
|
|
type: 'bool',
|
|
value: function() {
|
|
var value = (random(0, 2) === 0);
|
|
return {
|
|
value: value,
|
|
normalized: value
|
|
};
|
|
}
|
|
}
|
|
case 4:
|
|
var size = random(1, 6); /// @TODO: Support random(0, 6)... Why is that even possible?
|
|
var subTypeValue = randomTypeValue(true);
|
|
return {
|
|
type: subTypeValue.type + '[' + size + ']',
|
|
value: function() {
|
|
var values = [];
|
|
var normalized = [];
|
|
for (var i = 0; i < size; i++) {
|
|
var value = subTypeValue.value();
|
|
values.push(value.value);
|
|
normalized.push(value.normalized);
|
|
}
|
|
return {
|
|
value: values,
|
|
normalized: normalized
|
|
};
|
|
}
|
|
}
|
|
case 5:
|
|
return {
|
|
type: 'bytes',
|
|
value: function() {
|
|
var value = utils.randomBuffer(random(0, 100));
|
|
return {
|
|
value: value,
|
|
normalized: value
|
|
};
|
|
},
|
|
skip: 0
|
|
}
|
|
case 6:
|
|
var text = 'abcdefghijklmnopqrstuvwxyz\u2014ABCDEFGHIJKLMNOPQRSTUVWXYZFOOBARfoobar'
|
|
return {
|
|
type: 'string',
|
|
value: function() {
|
|
var value = text.substring(0, random(0, 60));
|
|
return {
|
|
value: value,
|
|
normalized: value
|
|
};
|
|
}
|
|
}
|
|
case 7:
|
|
var size = random(1, 6); // @TODO: bug in solidity or VM prevents this from being 0
|
|
var subTypeValue = randomTypeValue(true);
|
|
return {
|
|
type: subTypeValue.type + '[]',
|
|
value: function() {
|
|
var values = [];
|
|
var normalized = [];
|
|
for (var i = 0; i < size; i++) {
|
|
var value = subTypeValue.value();
|
|
values.push(value.value);
|
|
normalized.push(value.normalized);
|
|
}
|
|
return {
|
|
value: values,
|
|
normalized: normalized
|
|
};
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// @TODO: Test 0 arguments
|
|
// Create a bunch of random test cases
|
|
|
|
for (var i = 0; i < 1000; i++) {
|
|
var count = random(1, 4);
|
|
var types = [], values = [], normalized = [];;
|
|
for (var j = 0; j < count; j++) {
|
|
var type = randomTypeValue();
|
|
types.push(type.type);
|
|
var value = type.value();
|
|
values.push(value.value);
|
|
normalized.push(value.normalized);
|
|
}
|
|
check(types, values, normalized);
|
|
}
|
|
|
|
/*
|
|
check([ 'bool[4]', 'bool[]', 'int8' ],
|
|
[ [ true, true, false, true ], [ true, true ], -210 ] [ [ true, true, false, true ], [ true, true ], new BN(-0xd2) ],
|
|
[ [ true, true, false, true ], [ true, true ], new BN(2e) ]
|
|
);
|
|
*/
|
|
// Bug in solidity or in the VM, not sure, but this fails
|
|
// check(['uint8[4][]'], [ [] ]);
|
|
|
|
Promise.all(checkPromises).then(function(results) {
|
|
test.done();
|
|
}, function(error) {
|
|
console.log('ERROR', error);
|
|
test.done();
|
|
});
|
|
}
|
|
|