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Fix some bugs in sol-cov

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This commit is contained in:
Alex Browne
2018-06-21 13:14:13 -07:00
parent 88500e3714
commit 4cf331067b
2 changed files with 23 additions and 7 deletions
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18
packages/sol-cov/src/revert_trace_subprovider.ts
View File

@@ -75,6 +75,7 @@ export class RevertTraceSubprovider extends TraceCollectionSubprovider {
}
const bytecodeHex = stripHexPrefix(bytecode);
const sourceMap = isContractCreation ? contractData.sourceMap : contractData.sourceMapRuntime;
const pcToSourceRange = parseSourceMap(
contractData.sourceCodes,
sourceMap,
@@ -88,16 +89,19 @@ export class RevertTraceSubprovider extends TraceCollectionSubprovider {
// actually happens in assembly). In that case, we want to keep
// searching backwards by decrementing the pc until we find a
// mapped source range.
while (_.isUndefined(sourceRange)) {
while (_.isUndefined(sourceRange) && pc > 0) {
sourceRange = pcToSourceRange[pc];
pc -= 1;
if (pc <= 0) {
this._logger.warn(
`could not find matching sourceRange for structLog: ${evmCallStackEntry.structLog}`,
);
continue;
}
}
if (_.isUndefined(sourceRange)) {
this._logger.warn(
`could not find matching sourceRange for structLog: ${JSON.stringify(
_.omit(evmCallStackEntry.structLog, 'stack'),
)}`,
);
continue;
}
const fileIndex = contractData.sources.indexOf(sourceRange.fileName);
const sourceSnippet = getSourceRangeSnippet(sourceRange, contractData.sourceCodes[fileIndex]);
if (sourceSnippet !== null) {

12
packages/sol-cov/src/utils.ts
View File

@@ -5,6 +5,10 @@ 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;
@@ -38,7 +42,15 @@ export const utils = {
}
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));