diff options
Diffstat (limited to 'node_modules/@babel/helper-define-polyfill-provider/lib/utils.js')
| -rw-r--r-- | node_modules/@babel/helper-define-polyfill-provider/lib/utils.js | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/node_modules/@babel/helper-define-polyfill-provider/lib/utils.js b/node_modules/@babel/helper-define-polyfill-provider/lib/utils.js new file mode 100644 index 00000000..0aff88b1 --- /dev/null +++ b/node_modules/@babel/helper-define-polyfill-provider/lib/utils.js @@ -0,0 +1,165 @@ +"use strict"; + +exports.__esModule = true; +exports.createUtilsGetter = createUtilsGetter; +exports.getImportSource = getImportSource; +exports.getRequireSource = getRequireSource; +exports.has = has; +exports.intersection = intersection; +exports.resolveKey = resolveKey; +exports.resolveSource = resolveSource; +var _babel = _interopRequireWildcard(require("@babel/core")); +function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); } +function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; } +const { + types: t, + template: template +} = _babel.default || _babel; +function intersection(a, b) { + const result = new Set(); + a.forEach(v => b.has(v) && result.add(v)); + return result; +} +function has(object, key) { + return Object.prototype.hasOwnProperty.call(object, key); +} +function getType(target) { + return Object.prototype.toString.call(target).slice(8, -1); +} +function resolveId(path) { + if (path.isIdentifier() && !path.scope.hasBinding(path.node.name, /* noGlobals */true)) { + return path.node.name; + } + if (path.isPure()) { + const { + deopt + } = path.evaluate(); + if (deopt && deopt.isIdentifier()) { + return deopt.node.name; + } + } +} +function resolveKey(path, computed = false) { + const { + scope + } = path; + if (path.isStringLiteral()) return path.node.value; + const isIdentifier = path.isIdentifier(); + if (isIdentifier && !(computed || path.parent.computed)) { + return path.node.name; + } + if (computed && path.isMemberExpression() && path.get("object").isIdentifier({ + name: "Symbol" + }) && !scope.hasBinding("Symbol", /* noGlobals */true)) { + const sym = resolveKey(path.get("property"), path.node.computed); + if (sym) return "Symbol." + sym; + } + if (isIdentifier ? scope.hasBinding(path.node.name, /* noGlobals */true) : path.isPure()) { + const { + value + } = path.evaluate(); + if (typeof value === "string") return value; + } +} +function resolveSource(obj) { + if (obj.isMemberExpression() && obj.get("property").isIdentifier({ + name: "prototype" + })) { + const id = resolveId(obj.get("object")); + if (id) { + return { + id, + placement: "prototype" + }; + } + return { + id: null, + placement: null + }; + } + const id = resolveId(obj); + if (id) { + return { + id, + placement: "static" + }; + } + if (obj.isRegExpLiteral()) { + return { + id: "RegExp", + placement: "prototype" + }; + } else if (obj.isFunction()) { + return { + id: "Function", + placement: "prototype" + }; + } else if (obj.isPure()) { + const { + value + } = obj.evaluate(); + if (value !== undefined) { + return { + id: getType(value), + placement: "prototype" + }; + } + } + return { + id: null, + placement: null + }; +} +function getImportSource({ + node +}) { + if (node.specifiers.length === 0) return node.source.value; +} +function getRequireSource({ + node +}) { + if (!t.isExpressionStatement(node)) return; + const { + expression + } = node; + if (t.isCallExpression(expression) && t.isIdentifier(expression.callee) && expression.callee.name === "require" && expression.arguments.length === 1 && t.isStringLiteral(expression.arguments[0])) { + return expression.arguments[0].value; + } +} +function hoist(node) { + // @ts-expect-error + node._blockHoist = 3; + return node; +} +function createUtilsGetter(cache) { + return path => { + const prog = path.findParent(p => p.isProgram()); + return { + injectGlobalImport(url) { + cache.storeAnonymous(prog, url, (isScript, source) => { + return isScript ? template.statement.ast`require(${source})` : t.importDeclaration([], source); + }); + }, + injectNamedImport(url, name, hint = name) { + return cache.storeNamed(prog, url, name, (isScript, source, name) => { + const id = prog.scope.generateUidIdentifier(hint); + return { + node: isScript ? hoist(template.statement.ast` + var ${id} = require(${source}).${name} + `) : t.importDeclaration([t.importSpecifier(id, name)], source), + name: id.name + }; + }); + }, + injectDefaultImport(url, hint = url) { + return cache.storeNamed(prog, url, "default", (isScript, source) => { + const id = prog.scope.generateUidIdentifier(hint); + return { + node: isScript ? hoist(template.statement.ast`var ${id} = require(${source})`) : t.importDeclaration([t.importDefaultSpecifier(id)], source), + name: id.name + }; + }); + } + }; + }; +}
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