[Fix] do not use Object.prototype.toString when Symbol.toStringTag is shammed

Author: ljharb

.github/workflows/node-iojs.yml

@@ -12,6 +12,7 @@ jobs:
       - uses: ljharb/actions/node/matrix@main
         id: set-matrix
         with:
+          versionsAsRoot: true
           preset: 'iojs'
 
   latest:
@@ -21,7 +22,11 @@ jobs:
 
     strategy:
       fail-fast: false
-      matrix: ${{ fromJson(needs.matrix.outputs.latest) }}
+      matrix:
+        node-version: ${{ fromJson(needs.matrix.outputs.latest) }}
+        command:
+          - 'tests-only'
+          - 'test:corejs'
 
     steps:
       - uses: actions/checkout@v2
@@ -30,7 +35,7 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
           skip-ls-check: true
-      - run: npm run tests-only
+      - run: npm run ${{ matrix.command }}
       - uses: codecov/codecov-action@v1
 
   minors:
@@ -42,7 +47,11 @@ jobs:
 
     strategy:
       fail-fast: false
-      matrix: ${{ fromJson(needs.matrix.outputs.minors) }}
+      matrix:
+        node-version: ${{ fromJson(needs.matrix.outputs.minors) }}
+        command:
+          - 'tests-only'
+          - 'test:corejs'
 
     steps:
       - uses: actions/checkout@v2
@@ -51,7 +60,7 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
           skip-ls-check: true
-      - run: npm run tests-only
+      - run: npm run ${{ matrix.command }}
       - uses: codecov/codecov-action@v1
 
   node:

.github/workflows/node-zero.yml

@@ -12,6 +12,7 @@ jobs:
       - uses: ljharb/actions/node/matrix@main
         id: set-matrix
         with:
+          versionsAsRoot: true
           preset: '0.x'
 
   stable:
@@ -21,7 +22,11 @@ jobs:
 
     strategy:
       fail-fast: false
-      matrix: ${{ fromJson(needs.matrix.outputs.stable) }}
+      matrix:
+        node-version: ${{ fromJson(needs.matrix.outputs.stable) }}
+        command:
+          - 'tests-only'
+          - 'test:corejs'
 
     steps:
       - uses: actions/checkout@v2
@@ -31,7 +36,7 @@ jobs:
           node-version: ${{ matrix.node-version }}
           cache-node-modules-key: node_modules-${{ github.workflow }}-${{ github.action }}-${{ github.run_id }}
           skip-ls-check: true
-      - run: npm run tests-only
+      - run: npm run ${{ matrix.command }}
       - uses: codecov/codecov-action@v1
 
   unstable:
@@ -43,7 +48,11 @@ jobs:
 
     strategy:
       fail-fast: false
-      matrix: ${{ fromJson(needs.matrix.outputs.unstable) }}
+      matrix:
+        node-version: ${{ fromJson(needs.matrix.outputs.unstable) }}
+        command:
+          - 'tests-only'
+          - 'test:corejs'
 
     steps:
       - uses: actions/checkout@v2
@@ -53,7 +62,7 @@ jobs:
           node-version: ${{ matrix.node-version }}
           cache-node-modules-key: node_modules-${{ github.workflow }}-${{ github.action }}-${{ github.run_id }}
           skip-ls-check: true
-      - run: npm run tests-only
+      - run: npm run ${{ matrix.command }}
       - uses: codecov/codecov-action@v1
 
   node:

.npmignore

@@ -25,3 +25,5 @@ coverage/
 .nyc_output/
 
 .github/workflows
+
+test-corejs.js

.npmrc

@@ -1,4 +1,3 @@
 package-lock=false
-audit-level=moderate
 allow-same-version=true
 message=v%s

.nycrc

@@ -4,6 +4,7 @@
 	"reporter": ["text-summary", "text", "html", "json"],
 	"exclude": [
 		"coverage",
-		"test"
+		"test",
+		"test-corejs.js"
 	]
 }

index.js

@@ -1,8 +1,8 @@
 'use strict';
 
 var callBound = require('call-bind/callBound');
-var hasSymbols = require('has-symbols')();
-var hasToStringTag = hasSymbols && typeof Symbol.toStringTag === 'symbol';
+var hasSymbols = require('has-symbols/shams')();
+var hasToStringTag = hasSymbols && !!Symbol.toStringTag;
 var has;
 var $exec;
 var isRegexMarker;

package.json

@@ -15,6 +15,7 @@
 		"test": "npm run tests-only && npm run test:harmony",
 		"tests-only": "nyc node test",
 		"test:harmony": "nyc node --harmony --es-staging test",
+		"test:corejs": "nyc tape test-corejs.js",
 		"posttest": "npx aud --production",
 		"lint": "eslint .",
 		"eccheck": "eclint check *.js **/*.js > /dev/null",
@@ -45,6 +46,7 @@
 		"@ljharb/eslint-config": "^17.6.0",
 		"aud": "^1.1.5",
 		"auto-changelog": "^2.2.1",
+		"core-js": "^3.12.0",
 		"eclint": "^2.8.1",
 		"eslint": "^7.26.0",
 		"foreach": "^2.0.5",
@@ -53,7 +55,7 @@
 		"tape": "^5.2.2"
 	},
 	"testling": {
-		"files": "test.js",
+		"files": "test/index.js",
 		"browsers": [
 			"iexplore/6.0..latest",
 			"firefox/3.0..6.0",
@@ -62,8 +64,7 @@
 			"chrome/4.0..10.0",
 			"chrome/20.0..latest",
 			"chrome/canary",
-			"opera/10.0..12.0",
-			"opera/15.0..latest",
+			"opera/10.0..latest",
 			"opera/next",
 			"safari/4.0..latest",
 			"ipad/6.0..latest",

test-corejs.js

@@ -0,0 +1,5 @@
+'use strict';
+
+require('core-js');
+
+require('./test');

test/index.js

@@ -1,7 +1,7 @@
 'use strict';
 
-var hasSymbols = require('has-symbols')();
-var hasToStringTag = hasSymbols && typeof Symbol.toStringTag === 'symbol';
+var hasSymbols = require('has-symbols/shams')();
+var hasToStringTag = hasSymbols && !!Symbol.toStringTag;
 var forEach = require('foreach');
 var test = require('tape');
 var isRegex = require('..');