Merge branch 'v2-prototype' into feature/combinatorial-testing

* v2-prototype: (40 commits)
  Increase number of columns in relayer grid for small screens
  Make isValidSignature public
  Make batchFill methods return FIllResults struct
  Remove remove_tags script
  Small fixes
  Use semver package instead of getNextPatchVersion
  Use semver library instead of semverUtils
  small fixes
  Show all errors of a given kind at once rather then throwing after the first instance is encountered
  fix package.json
  Add more prepublish checks
  remove remove_tags script
  Create a shared Image component
  Adjust version in changelog
  Update RelayerGridTile render logic to incorportate colors and logos
  Add max width to top bar
  Set max-width for LargeLayout
  Finish last onboarding step
  Finish set allowance step
  Add onboarding assets
  ...

1 files changed, 24 insertions, 0 deletions

diff --git a/packages/sol-cov/src/utils.ts b/packages/sol-cov/src/utils.ts
index 0b32df02e..4f16a1cda 100644
--- a/packages/sol-cov/src/utils.ts
+++ b/packages/sol-cov/src/utils.ts
@@ -1,3 +1,6 @@
+import { addressUtils, BigNumber } from '@0xproject/utils';
+import { OpCode, StructLog } from 'ethereum-types';
+import { addHexPrefix } from 'ethereumjs-util';
 import * as _ from 'lodash';
 
 import { ContractData, LineColumn, SingleFileSourceRange } from './types';
@@ -42,4 +45,25 @@ export const utils = {
         });
         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;
+    },
 };