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authorLeonid Logvinov <logvinov.leon@gmail.com>2019-01-08 19:23:33 +0800
committerLeonid Logvinov <logvinov.leon@gmail.com>2019-01-08 21:48:06 +0800
commit2c974b5f3ffa0e9736000273e39cdeee4a251b94 (patch)
treea1772f93d796e3b4ba7a988194a44a3e8bcd6d31 /packages/sol-cov/src/utils.ts
parent0ac36cef288deecd36caa601c53d13517eef5ca8 (diff)
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Refactor out sol-cov, sol-profiler and sol-trace into their separate packages
Diffstat (limited to 'packages/sol-cov/src/utils.ts')
-rw-r--r--packages/sol-cov/src/utils.ts87
1 files changed, 0 insertions, 87 deletions
diff --git a/packages/sol-cov/src/utils.ts b/packages/sol-cov/src/utils.ts
deleted file mode 100644
index d8bc65e73..000000000
--- a/packages/sol-cov/src/utils.ts
+++ /dev/null
@@ -1,87 +0,0 @@
-import { addressUtils, BigNumber } from '@0x/utils';
-import { OpCode, StructLog } from 'ethereum-types';
-import { addHexPrefix } from 'ethereumjs-util';
-import * as _ from 'lodash';
-
-import { ContractData, LineColumn, SingleFileSourceRange } from './types';
-
-// This is the minimum length of valid contract bytecode. The Solidity compiler
-// metadata is 86 bytes. If you add the '0x' prefix, we get 88.
-const MIN_CONTRACT_BYTECODE_LENGTH = 88;
-
-export const utils = {
- compareLineColumn(lhs: LineColumn, rhs: LineColumn): number {
- return lhs.line !== rhs.line ? lhs.line - rhs.line : lhs.column - rhs.column;
- },
- removeHexPrefix(hex: string): string {
- const hexPrefix = '0x';
- return hex.startsWith(hexPrefix) ? hex.slice(hexPrefix.length) : hex;
- },
- isRangeInside(childRange: SingleFileSourceRange, parentRange: SingleFileSourceRange): boolean {
- return (
- utils.compareLineColumn(parentRange.start, childRange.start) <= 0 &&
- utils.compareLineColumn(childRange.end, parentRange.end) <= 0
- );
- },
- bytecodeToBytecodeRegex(bytecode: string): string {
- const bytecodeRegex = bytecode
- // Library linking placeholder: __ConvertLib____________________________
- .replace(/_.*_/, '.*')
- // Last 86 characters is solidity compiler metadata that's different between compilations
- .replace(/.{86}$/, '')
- // Libraries contain their own address at the beginning of the code and it's impossible to know it in advance
- .replace(/^0x730000000000000000000000000000000000000000/, '0x73........................................');
- // HACK: Node regexes can't be longer that 32767 characters. Contracts bytecode can. We just truncate the regexes. It's safe in practice.
- const MAX_REGEX_LENGTH = 32767;
- const truncatedBytecodeRegex = bytecodeRegex.slice(0, MAX_REGEX_LENGTH);
- return truncatedBytecodeRegex;
- },
- getContractDataIfExists(contractsData: ContractData[], bytecode: string): ContractData | undefined {
- if (!bytecode.startsWith('0x')) {
- throw new Error(`0x hex prefix missing: ${bytecode}`);
- }
- const contractData = _.find(contractsData, contractDataCandidate => {
- const bytecodeRegex = utils.bytecodeToBytecodeRegex(contractDataCandidate.bytecode);
- // If the bytecode is less than the minimum length, we are probably
- // dealing with an interface. This isn't what we're looking for.
- if (bytecodeRegex.length < MIN_CONTRACT_BYTECODE_LENGTH) {
- return false;
- }
- const runtimeBytecodeRegex = utils.bytecodeToBytecodeRegex(contractDataCandidate.runtimeBytecode);
- if (runtimeBytecodeRegex.length < MIN_CONTRACT_BYTECODE_LENGTH) {
- return false;
- }
- // We use that function to find by bytecode or runtimeBytecode. Those are quasi-random strings so
- // collisions are practically impossible and it allows us to reuse that code
- return !_.isNull(bytecode.match(bytecodeRegex)) || !_.isNull(bytecode.match(runtimeBytecodeRegex));
- });
- return contractData;
- },
- isCallLike(op: OpCode): boolean {
- return _.includes([OpCode.CallCode, OpCode.StaticCall, OpCode.Call, OpCode.DelegateCall], op);
- },
- isEndOpcode(op: OpCode): boolean {
- return _.includes([OpCode.Return, OpCode.Stop, OpCode.Revert, OpCode.Invalid, OpCode.SelfDestruct], op);
- },
- getAddressFromStackEntry(stackEntry: string): string {
- const hexBase = 16;
- return addressUtils.padZeros(new BigNumber(addHexPrefix(stackEntry)).toString(hexBase));
- },
- normalizeStructLogs(structLogs: StructLog[]): StructLog[] {
- if (structLogs[0].depth === 1) {
- // Geth uses 1-indexed depth counter whilst ganache starts from 0
- const newStructLogs = _.map(structLogs, structLog => ({
- ...structLog,
- depth: structLog.depth - 1,
- }));
- return newStructLogs;
- }
- return structLogs;
- },
- getRange(sourceCode: string, range: SingleFileSourceRange): string {
- const lines = sourceCode.split('\n').slice(range.start.line - 1, range.end.line);
- lines[lines.length - 1] = lines[lines.length - 1].slice(0, range.end.column);
- lines[0] = lines[0].slice(range.start.column);
- return lines.join('\n');
- },
-};