initial commit of actions

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/index.js

@@ -0,0 +1,288 @@
+'use strict';
+
+const path = require("path");
+const browserslist = require("browserslist");
+const { version, homepage } = require("../package.json");
+const flatTypeScriptConfigs = {};
+const createRule = (name, browserstring, description, { ts = null } = {}) => {
+  const rule = require(`./rules/${name}`);
+  module.exports.rules[name] = {
+    meta: Object.assign(
+      {
+        type: "problem",
+        docs: {
+          description,
+          recommended: true,
+          url: `${homepage}/blob/v${version}/docs/${name}.md`,
+        },
+        fixable: false,
+        schema: [],
+        deprecated: false,
+        replacedBy: null,
+      },
+      rule.meta || {}
+    ),
+    create(context) {
+      let browsers = browserslist(browserstring);
+      const config = browserslist.findConfig(path.dirname(
+        context.filename ?? context.getFilename()
+      )) || {
+        defaults: "defaults",
+      };
+      const desiredBrowsers = browserslist(config.defaults);
+      const badBrowsers = desiredBrowsers
+        .filter((browser) => browsers.includes(browser))
+        .join(", ");
+      if (globalThis.ESLINT_TESTING || badBrowsers) {
+        const create = typeof rule === "function" ? rule : rule.create;
+        return create(context, globalThis.ESLINT_TESTING ? undefined : badBrowsers);
+      }
+      return {};
+    },
+  };
+
+  const configName = `typescript-${ts || "base"}`;
+  const flatConfigName = `flat/${configName}`;
+  if (!module.exports.configs[configName]) {
+    flatTypeScriptConfigs[configName] = [{
+      name: `escompat/${configName}`,
+      plugins: {
+        escompat: module.exports
+      },
+      rules: {}
+    }];
+    const config = { rules: {} };
+    if (ts === 2016) {
+      config.extends = [`plugin:escompat/typescript-base`];
+      flatTypeScriptConfigs[configName].unshift(
+        ...flatTypeScriptConfigs['typescript-base']
+      );
+    } else if (ts) {
+      let previous = ts - 1;
+      while (!module.exports.configs[`typescript-${previous}`]) previous -= 1;
+
+      config.extends = [`plugin:escompat/typescript-${previous}`];
+      flatTypeScriptConfigs[configName].unshift(
+        ...flatTypeScriptConfigs[`typescript-${previous}`]
+      );
+    }
+    module.exports.configs[configName] = config;
+    module.exports.configs[flatConfigName] = flatTypeScriptConfigs[configName];
+  }
+  module.exports.configs[`typescript-base`].rules[`escompat/${name}`] = "off";
+  module.exports.configs[`flat/typescript-base`].at(-1).rules[`escompat/${name}`] = "off";
+  module.exports.configs[configName].rules[`escompat/${name}`] = "error";
+  module.exports.configs[flatConfigName].at(-1).rules[`escompat/${name}`] = "error";
+};
+
+module.exports = { rules: {}, configs: {} };
+// ES2015
+createRule(
+  "no-edge-destructure-bug",
+  "edge < 18",
+  "disallow the use of specific destructuring patterns that cause bugs in old Edge"
+);
+
+// ES2016
+createRule(
+  "no-exponentiation-operator",
+  "chrome < 52, edge < 14, firefox < 52, safari < 10.1",
+  "disallow use of exponentiation operator (**)",
+  { ts: 2016 }
+);
+
+// ES2018
+createRule(
+  "no-async-iteration",
+  "edge < 79, safari < 12, firefox < 57, chrome < 63",
+  "disallow the use of `for await of` style loops",
+  { ts: 2018 }
+);
+createRule(
+  "no-async-generator",
+  "edge < 79, safari < 12, firefox < 57, chrome < 63",
+  "disallow the use of async generator functions",
+  { ts: 2018 }
+);
+createRule(
+  "no-object-rest-spread",
+  "edge < 79, safari < 11.1, firefox < 55, chrome < 60",
+  "disallow object rest/spread patterns",
+  { ts: 2018 }
+);
+createRule(
+  "no-regexp-s-flag",
+  "edge < 79, safari < 11.1, firefox < 78, chrome < 62",
+  "disallow the use of the RegExp `s` flag"
+);
+createRule(
+  "no-regexp-lookbehind",
+  "edge < 79, safari < 16.4, firefox < 78, chrome < 62",
+  "disallow the use of RegExp lookbehinds"
+);
+createRule(
+  "no-regexp-named-group",
+  "edge < 79, safari 11.1, firefox < 78, chrome < 64",
+  "disallow the use of RegExp named groups"
+);
+
+// ES2019
+createRule(
+  "no-optional-catch",
+  "edge < 79, safari < 11.1, firefox < 58, chrome < 66",
+  "always require catch() to have an argument",
+  { ts: 2019 }
+);
+
+// ES2020
+createRule(
+  "no-dynamic-imports",
+  "edge < 79, safari < 11, firefox < 67, chrome < 63",
+  "disallow dynamic import statements"
+);
+createRule(
+  "no-optional-chaining",
+  "edge < 80, safari < 13.1, firefox < 72, chrome < 80",
+  "disallow the .? optional chaining operator",
+  { ts: 2020 }
+);
+createRule(
+  "no-nullish-coalescing",
+  "edge < 80, safari < 13.1, firefox < 72, chrome < 80",
+  "disallow the ?? nullish coalescing operator",
+  { ts: 2020 }
+);
+createRule(
+  "no-bigint",
+  "edge < 79, safari < 14, firefox < 68, chrome < 67",
+  "disallow bigints"
+);
+
+// ES2021
+createRule(
+  "no-numeric-separators",
+  "edge < 79, safari < 13, firefox < 68, chrome < 75",
+  "disallow use of numeric separators like 1_000_000",
+  { ts: 2021 }
+);
+
+createRule(
+  "no-logical-assignment-operator",
+  "edge < 85, safari < 14, firefox < 79, chrome < 85",
+  "disallow logical assignment operators like &&=",
+  { ts: 2021 }
+);
+
+// ES2022
+createRule(
+  "no-public-static-class-fields",
+  "edge < 79, safari < 14.5, firefox < 75, chrome < 72",
+  "disallow public static class fields like foo = 1",
+  { ts: 2022 }
+);
+createRule(
+  "no-public-instance-class-fields",
+  "edge < 79, safari < 14.5, firefox < 69, chrome < 72",
+  "disallow public class fields like foo = 1",
+  { ts: 2022 }
+);
+createRule(
+  "no-computed-public-class-fields",
+  "edge < 79, safari < 14.5, firefox < 69, chrome < 74",
+  "disallow computed public static or instance class fields like [foo] = 1",
+  { ts: 2022 }
+);
+createRule(
+  "no-private-class-fields",
+  "edge < 79, safari < 14.5, firefox < 90, chrome < 74",
+  "disallow private class fields like #foo = 1",
+  { ts: 2022 }
+);
+createRule(
+  "no-class-static-blocks",
+  "edge < 94, safari < 16.4, firefox < 93, chrome < 94",
+  "disallow static blocks like `static { x = 1 }`",
+  { ts: 2022 }
+);
+createRule(
+  "no-top-level-await",
+  "edge < 89, safari < 15, firefox < 89, chrome < 89",
+  "disallow await keyword outside of async function context",
+  { ts: 2022 }
+);
+
+// ES2023
+createRule(
+  "no-hashbang-comment",
+  "edge < 79, safari < 13.1, firefox < 67, chrome < 74",
+  "disallow hashbang comments",
+  { ts: 2023 }
+);
+
+// ES2024
+createRule(
+  "no-regexp-v-flag",
+  "edge > 0, safari < 17, firefox < 116, chrome < 112",
+  "disallow the use of the RegExp `v` flag",
+  { ts: 2024 }
+);
+
+// ES2025
+createRule(
+  "no-regexp-duplicate-named-groups",
+  "edge < 125, safari < 17, firefox < 129, chrome < 125",
+  "disallow the use of RegExp duplicate named groups",
+  { ts: 2025 }
+);
+
+// Proposals...
+createRule(
+  "no-do-expression",
+  "edge > 0, safari > 0, firefox > 0, chrome > 0",
+  'disallow "do" expressions'
+);
+createRule(
+  "no-bind-operator",
+  "edge > 0, safari > 0, firefox > 0, chrome > 0",
+  "disallow the :: bind operator"
+);
+createRule(
+  "no-pipeline-operator",
+  "edge > 0, safari > 0, firefox > 0, chrome > 0",
+  "disallow the > pipeline operator"
+);
+
+module.exports.configs.recommended = {
+  plugins: ["escompat"],
+  parserOptions: { ecmaVersion: 2025 },
+  rules: Object.keys(module.exports.rules).reduce(
+    (o, r) => ((o["escompat/" + r] = ["error"]), o),
+    {}
+  ),
+};
+
+module.exports.configs["flat/recommended"] = {
+  name: 'escompat/flat/recommended',
+  plugins: {
+    escompat: module.exports
+  },
+  languageOptions: {
+    ecmaVersion: 2025
+  },
+  rules: Object.keys(module.exports.rules).reduce(
+    (o, r) => ((o["escompat/" + r] = ["error"]), o),
+    {}
+  ),
+};
+
+module.exports.configs.typescript = {
+  extends: ["plugin:escompat/typescript-2025"],
+};
+module.exports.configs['flat/typescript'] = flatTypeScriptConfigs[
+  'typescript-2025'
+];
+
+if (require.main === module) {
+  console.log(require("util").inspect(module.exports, { depth: Infinity }));
+}
+

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-async-generator.js

@@ -0,0 +1,7 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  ':function[async=true][generator=true]'(node) {
+    context.report(node, `Async Generators are not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-async-iteration.js

@@ -0,0 +1,7 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  'ForOfStatement[await=true]'(node) {
+    context.report(node, `Async Iteration is not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-bigint.js

@@ -0,0 +1,7 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  'Literal[bigint]'(node) {
+    context.report(node, `BigInts are not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-bind-operator.js

@@ -0,0 +1,7 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  BindExpression(node) {
+    context.report(node, `The Bind Operator is not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-class-static-blocks.js

@@ -0,0 +1,10 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  StaticBlock(node) {
+    context.report(
+      node,
+      `Class Static Blocks are not supported in ${badBrowser}`
+    );
+  },
+});

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-computed-public-class-fields.js

@@ -0,0 +1,11 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  // Ignore type annotations that don't assign
+  'ClassProperty[computed=true]:not([typeAnnotation]:not([value]))'(node) {
+    context.report(node, `Computed Class Fields are not supported in ${badBrowser}`)
+  },
+  'PropertyDefinition[computed=true]:not([typeAnnotation]:not([value]))'(node) {
+    context.report(node, `Computed Class Fields are not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-do-expression.js

@@ -0,0 +1,7 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  DoExpression(node) {
+    context.report(node, `Do Expressions are not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-dynamic-imports.js

@@ -0,0 +1,7 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  'ImportExpression, CallExpression[callee.type="Import"]'(node) {
+    context.report(node, `Dynamic import is not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-edge-destructure-bug.js

@@ -0,0 +1,31 @@
+'use strict';
+
+const objectPatternHasDefaults = node =>
+  node.type === 'ObjectPattern' && node.properties.some(prop => prop.value.type === 'AssignmentPattern')
+
+module.exports = function(context) {
+  return {
+    ArrowFunctionExpression(node) {
+      // Unary functions don't trip on this bug
+      if (node.params.length < 2) return
+
+      // This bug only occurs when some arguments use Object destructuring
+      if (!node.params.some(param => param.type === 'ObjectPattern')) return
+
+      const objectPatternArgs = node.params.filter(node => node.type === 'ObjectPattern')
+
+      // This bug is only occurs when an argument uses Object Destructuring with Default assignment
+      if (!objectPatternArgs.some(objectPatternHasDefaults)) return
+
+      // This bug gets fixed if the first argument uses Object destructuring with default assignments!
+      if (node.params[0].type === 'ObjectPattern' && objectPatternHasDefaults(node.params[0])) return
+
+      context.report(
+        node,
+        'There is an Edge 15-17 bug which causes second argument destructuring to fail. See https://git.io/fhd7N for more'
+      )
+    }
+  }
+}
+
+module.exports.schema = []

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-exponentiation-operator.js

@@ -0,0 +1,7 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  'AssignmentExpression[operator="**="], BinaryExpression[operator="**"]'(node) {
+    context.report(node, `Exponentiation Operator is not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-hashbang-comment.js

@@ -0,0 +1,13 @@
+'use strict';
+
+module.exports = (context, badBrowser) => {
+  const { sourceCode = context.getSourceCode() } = context;
+  return {
+    'Program:exit' (node) {
+      const [comment] = sourceCode.getAllComments();
+      if (comment && comment.type === 'Shebang') {
+        context.report(node, `Hashbang comments are not supported in ${badBrowser}`)
+      }
+    }
+  }
+}

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-logical-assignment-operator.js

@@ -0,0 +1,13 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  'AssignmentExpression[operator="||="]'(node) {
+    context.report(node, `Logical assignment operators are not supported in ${badBrowser}`)
+  },
+  'AssignmentExpression[operator="&&="]'(node) {
+    context.report(node, `Logical assignment operators are not supported in ${badBrowser}`)
+  },
+  'AssignmentExpression[operator="??="]'(node) {
+    context.report(node, `Logical assignment operators are not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-nullish-coalescing.js

@@ -0,0 +1,7 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  'LogicalExpression[operator="??"]'(node) {
+    context.report(node, `the Nullish Coalescing Operator is not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-numeric-separators.js

@@ -0,0 +1,16 @@
+'use strict';
+
+module.exports = {
+  meta: {
+    fixable: 'code'
+  },
+  create: (context, badBrowser) => ({
+    'Literal[raw=/_/][value>=0], Literal[raw=/_/][value<=0]'(node) {
+      context.report({
+        node,
+        message: `Numeric Separators are not supported in ${badBrowser}`,
+        fix: fixer => fixer.replaceText(node, String(node.value))
+      })
+    }
+  })
+}

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-object-rest-spread.js

@@ -0,0 +1,18 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  'ObjectExpression > SpreadElement'(node) {
+    context.report(node, `Object Rest/Spread is not supported in ${badBrowser}`)
+  },
+  'ObjectPattern > RestElement'(node) {
+    context.report(node, `Object Rest/Spread is not supported in ${badBrowser}`)
+  },
+
+  // Catch older versions of eslint and babel-eslint
+  ExperimentalRestProperty(node) {
+    context.report(node, `Object Rest/Spread is not supported in ${badBrowser}`)
+  },
+  ExperimentalSpreadProperty(node) {
+    context.report(node, `Object Rest/Spread is not supported in ${badBrowser}`)
+  },
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-optional-catch.js

@@ -0,0 +1,7 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  'CatchClause:not([param])'(node) {
+    context.report(node, `Optional Catch Parameters are not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-optional-chaining.js

@@ -0,0 +1,10 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  OptionalMemberExpression(node) {
+    context.report(node, `Optional Chaining is not supported in ${badBrowser}`)
+  },
+  ChainExpression(node) {
+    context.report(node, `Optional Chaining is not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-pipeline-operator.js

@@ -0,0 +1,7 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  'BinaryExpression[operator="|>"]'(node) {
+    context.report(node, `The Pipeline Operator is not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-private-class-fields.js

@@ -0,0 +1,10 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  ClassPrivateProperty(node) {
+    context.report(node, `Private Class Fields are not supported in ${badBrowser}`)
+  },
+  PrivateIdentifier(node) {
+    context.report(node, `Private Class Fields are not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-public-instance-class-fields.js

@@ -0,0 +1,13 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  // Ignore type annotations that don't assign
+  'ClassProperty[static=false]:not([typeAnnotation]:not([value]))'(node) {
+    if (node.value === null) return
+    context.report(node, `Instance Class Fields are not supported in ${badBrowser}`)
+  },
+  'PropertyDefinition[static=false]:not([typeAnnotation]:not([value]))'(node) {
+    if (node.value === null) return
+    context.report(node, `Instance Class Fields are not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-public-static-class-fields.js

@@ -0,0 +1,11 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  // Ignore type annotations that don't assign
+  'ClassProperty[static=true]:not([typeAnnotation]:not([value]))'(node) {
+    context.report(node, `Static Class Fields are not supported in ${badBrowser}`)
+  },
+  'PropertyDefinition[static=true]:not([typeAnnotation]:not([value]))'(node) {
+    context.report(node, `Static Class Fields are not supported in ${badBrowser}`)
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-regexp-duplicate-named-groups.js

@@ -0,0 +1,30 @@
+'use strict';
+
+const hasDuplicateNamedGroups = s => /(\(\?<[_$\w]*?)>.*?\1>/.test(s)
+
+module.exports = (context, badBrowser) => ({
+  'Literal[regex]'(node) {
+    if (hasDuplicateNamedGroups(node.regex.pattern)) {
+      context.report(node, `RegExp duplicate named groups are not supported in ${badBrowser}`)
+    }
+  },
+  'CallExpression[callee.name="RegExp"], NewExpression[callee.name="RegExp"]'(node) {
+    const [source] = node.arguments;
+    if (
+      source &&
+      (
+        (
+          source.type === 'Literal' &&
+          typeof source.value === 'string' &&
+          hasDuplicateNamedGroups(source.value)
+        ) ||
+        (
+          source.type === 'TemplateLiteral' &&
+          source.quasis.some(({value: {raw}}) => hasDuplicateNamedGroups(raw))
+        )
+      )
+    ) {
+      context.report(node, `RegExp duplicate named groups are not supported in ${badBrowser}`)
+    }
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-regexp-lookbehind.js

@@ -0,0 +1,30 @@
+'use strict';
+
+const hasLookbehind = s => s.includes('(?<=') || s.includes('(?<!')
+
+module.exports = (context, badBrowser) => ({
+  'Literal[regex]'(node) {
+    if (hasLookbehind(node.regex.pattern)) {
+      context.report(node, `RegExp lookbehinds are not supported in ${badBrowser}`)
+    }
+  },
+  'CallExpression[callee.name="RegExp"], NewExpression[callee.name="RegExp"]'(node) {
+    const [source] = node.arguments;
+    if (
+      source &&
+      (
+        (
+          source.type === 'Literal' &&
+          typeof source.value === 'string' &&
+          hasLookbehind(source.value)
+        ) ||
+        (
+          source.type === 'TemplateLiteral' &&
+          source.quasis.some(({value: {raw}}) => hasLookbehind(raw))
+        )
+      )
+    ) {
+      context.report(node, `RegExp lookbehinds are not supported in ${badBrowser}`)
+    }
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-regexp-named-group.js

@@ -0,0 +1,30 @@
+'use strict';
+
+const hasNamedGroup = s => /\(\?<[_$\w]/.test(s)
+
+module.exports = (context, badBrowser) => ({
+  'Literal[regex]'(node) {
+    if (hasNamedGroup(node.regex.pattern)) {
+      context.report(node, `RegExp named groups are not supported in ${badBrowser}`)
+    }
+  },
+  'CallExpression[callee.name="RegExp"], NewExpression[callee.name="RegExp"]'(node) {
+    const [source] = node.arguments;
+    if (
+      source &&
+      (
+        (
+          source.type === 'Literal' &&
+          typeof source.value === 'string' &&
+          hasNamedGroup(source.value)
+        ) ||
+        (
+          source.type === 'TemplateLiteral' &&
+          source.quasis.some(({value: {raw}}) => hasNamedGroup(raw))
+        )
+      )
+    ) {
+      context.report(node, `RegExp named groups are not supported in ${badBrowser}`)
+    }
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-regexp-s-flag.js

@@ -0,0 +1,28 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  'Literal[regex]'(node) {
+    if (node.regex.flags.includes('s')) {
+      context.report(node, `RegExp "s" flag is not supported in ${badBrowser}`)
+    }
+  },
+  'CallExpression[callee.name="RegExp"], NewExpression[callee.name="RegExp"]'(node) {
+    const [, flags] = node.arguments;
+    if (
+      flags &&
+      (
+        (
+          flags.type === 'Literal' &&
+          typeof flags.value === 'string' &&
+          flags.value.includes('s')
+        ) ||
+        (
+          flags.type === 'TemplateLiteral' &&
+          flags.quasis.some(({value: {raw}}) => raw.includes('s'))
+        )
+      )
+    ) {
+      context.report(node, `RegExp "s" flag is not supported in ${badBrowser}`)
+    }
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-regexp-v-flag.js

@@ -0,0 +1,28 @@
+'use strict';
+
+module.exports = (context, badBrowser) => ({
+  'Literal[regex]'(node) {
+    if (node.regex.flags.includes('v')) {
+      context.report(node, `RegExp "v" flag is not supported in ${badBrowser}`)
+    }
+  },
+  'CallExpression[callee.name="RegExp"], NewExpression[callee.name="RegExp"]'(node) {
+    const [, flags] = node.arguments;
+    if (
+      flags &&
+      (
+        (
+          flags.type === 'Literal' &&
+          typeof flags.value === 'string' &&
+          flags.value.includes('v')
+        ) ||
+        (
+          flags.type === 'TemplateLiteral' &&
+          flags.quasis.some(({value: {raw}}) => raw.includes('v'))
+        )
+      )
+    ) {
+      context.report(node, `RegExp "v" flag is not supported in ${badBrowser}`)
+    }
+  }
+})

github/codeql-action-v2/node_modules/eslint-plugin-escompat/lib/rules/no-top-level-await.js

@@ -0,0 +1,20 @@
+'use strict';
+
+const functionTypes = new Set([
+  'FunctionDeclaration',
+  'FunctionExpression',
+  'ArrowFunctionExpression',
+]);
+
+module.exports = (context, badBrowser) => ({
+  AwaitExpression(node) {
+    let currentNode = node;
+    while (currentNode.parent) {
+      currentNode = currentNode.parent;
+      if (functionTypes.has(currentNode.type) && currentNode.async) {
+        return;
+      }
+    }
+    context.report(node, `Top-level await is not supported in ${badBrowser}`)
+  },
+})