chore: update to solidity 0.7.4

.nvmrc

@@ -1 +1 @@
-10
+12

.travis.yml

@@ -1,18 +1,15 @@
-dist: trusty
+os: linux
+dist: xenial
 group: beta
 language: node_js
 node_js:
-  - "10"
+  - "12"
 
-# for some reason caching fails build
 cache:
   directories:
     - node_modules
 
 jobs:
-  # XXX fast_finish doesn't work with stages yet. See
-  # https://github.com/travis-ci/travis-ci/issues/8425
-  # --elopio - 20180531
   fast_finish: true
   allow_failures:
     - env: SOLC_NIGHTLY=true

buidler.config.js

@@ -13,7 +13,7 @@ module.exports = {
     },
   },
   solc: {
-    version: '0.7.1',
+    version: '0.7.4',
     optimizer: {
       enabled: true,
       runs: 200,

package.json

@@ -56,37 +56,33 @@
   ],
   "license": "MIT",
   "devDependencies": {
-    "@nomiclabs/buidler": "^1.4.5",
+    "@nomiclabs/buidler": "^1.4.8",
     "@nomiclabs/buidler-ganache": "^1.3.3",
     "@nomiclabs/buidler-truffle5": "^1.3.4",
     "@nomiclabs/buidler-web3": "^1.3.4",
-    "@openzeppelin/test-helpers": "^0.5.6",
-    "@vuepress/plugin-google-analytics": "^1.5.3",
+    "@openzeppelin/test-helpers": "^0.5.7",
+    "@vuepress/plugin-google-analytics": "^1.7.1",
     "chai": "^4.2.0",
     "coveralls": "^3.1.0",
-    "eslint": "^7.8.1",
+    "eslint": "^7.10.0",
     "eslint-config-standard": "^14.1.1",
-    "eslint-plugin-import": "^2.22.0",
+    "eslint-plugin-import": "^2.22.1",
     "eslint-plugin-mocha-no-only": "^1.1.1",
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-promise": "^4.2.1",
     "eslint-plugin-standard": "^4.0.1",
-    "ethereumjs-util": "^7.0.5",
-    "ethjs-abi": "^0.2.1",
-    "ganache-cli": "^6.10.2",
+    "ganache-cli": "^6.11.0",
     "lite-server": "^2.5.4",
-    "pify": "^5.0.0",
     "sol2uml": "^1.1.18",
-    "solhint": "^3.2.0",
-    "solidity-coverage": "^0.7.10",
-    "surya": "github:vittominacori/surya#feature/update-solidity-parser",
-    "truffle": "5.1.44",
+    "solhint": "^3.2.2",
+    "solidity-coverage": "^0.7.11",
+    "surya": "^0.4.1",
+    "truffle": "^5.1.49",
     "truffle-flattener": "^1.5.0",
-    "vuepress": "^1.5.3",
-    "web3": "^1.2.11"
+    "vuepress": "^1.7.1"
   },
   "dependencies": {
-    "@openzeppelin/contracts": "3.2.0-solc-0.7",
-    "eth-token-recover": "3.2.0"
+    "@openzeppelin/contracts": "3.2.1-solc-0.7",
+    "eth-token-recover": "3.2.1"
   }
 }

scripts/analyze.sh

@@ -1,13 +1,14 @@
 #!/usr/bin/env bash
 
-CONTRACT_NAME=SampleContract
-
 npm run flat
 
-surya inheritance dist/$CONTRACT_NAME.dist.sol | dot -Tpng > analysis/inheritance-tree/$CONTRACT_NAME.png
+for contract in "SampleContract"
+do
+  npx surya inheritance dist/$contract.dist.sol | dot -Tpng > analysis/inheritance-tree/$contract.png
 
-surya graph dist/$CONTRACT_NAME.dist.sol | dot -Tpng > analysis/control-flow/$CONTRACT_NAME.png
+  npx surya graph dist/$contract.dist.sol | dot -Tpng > analysis/control-flow/$contract.png
 
-surya mdreport analysis/description-table/$CONTRACT_NAME.md dist/$CONTRACT_NAME.dist.sol
+  npx surya mdreport analysis/description-table/$contract.md dist/$contract.dist.sol
 
-sol2uml dist/$CONTRACT_NAME.dist.sol -o analysis/uml/$CONTRACT_NAME.svg
+  npx sol2uml dist/$contract.dist.sol -o analysis/uml/$contract.svg
+done

scripts/flat.sh

@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 
-CONTRACT_NAME=SampleContract
-
-truffle-flattener contracts/$CONTRACT_NAME.sol > dist/$CONTRACT_NAME.dist.sol
+for contract in "SampleContract"
+do
+  npx truffle-flattener contracts/$contract.sol > dist/$contract.dist.sol
+done

truffle-config.js

@@ -1,7 +1,7 @@
 require('chai/register-should');
 
 const solcStable = {
-  version: '0.7.1',
+  version: '0.7.4',
   settings: {
     optimizer: {
       enabled: true,