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| ; | |
| Object.defineProperty(exports, "__esModule", { | |
| value: true | |
| }); | |
| exports.default = _default; | |
| var _template = require("@babel/template"); | |
| var _t = require("@babel/types"); | |
| const { | |
| NOT_LOCAL_BINDING, | |
| cloneNode, | |
| identifier, | |
| isAssignmentExpression, | |
| isAssignmentPattern, | |
| isFunction, | |
| isIdentifier, | |
| isLiteral, | |
| isNullLiteral, | |
| isObjectMethod, | |
| isObjectProperty, | |
| isRegExpLiteral, | |
| isRestElement, | |
| isTemplateLiteral, | |
| isVariableDeclarator, | |
| toBindingIdentifierName | |
| } = _t; | |
| function getFunctionArity(node) { | |
| const count = node.params.findIndex(param => isAssignmentPattern(param) || isRestElement(param)); | |
| return count === -1 ? node.params.length : count; | |
| } | |
| const buildPropertyMethodAssignmentWrapper = _template.default.statement(` | |
| (function (FUNCTION_KEY) { | |
| function FUNCTION_ID() { | |
| return FUNCTION_KEY.apply(this, arguments); | |
| } | |
| FUNCTION_ID.toString = function () { | |
| return FUNCTION_KEY.toString(); | |
| } | |
| return FUNCTION_ID; | |
| })(FUNCTION) | |
| `); | |
| const buildGeneratorPropertyMethodAssignmentWrapper = _template.default.statement(` | |
| (function (FUNCTION_KEY) { | |
| function* FUNCTION_ID() { | |
| return yield* FUNCTION_KEY.apply(this, arguments); | |
| } | |
| FUNCTION_ID.toString = function () { | |
| return FUNCTION_KEY.toString(); | |
| }; | |
| return FUNCTION_ID; | |
| })(FUNCTION) | |
| `); | |
| const visitor = { | |
| "ReferencedIdentifier|BindingIdentifier"(path, state) { | |
| if (path.node.name !== state.name) return; | |
| const localDeclar = path.scope.getBindingIdentifier(state.name); | |
| if (localDeclar !== state.outerDeclar) return; | |
| state.selfReference = true; | |
| path.stop(); | |
| } | |
| }; | |
| function getNameFromLiteralId(id) { | |
| if (isNullLiteral(id)) { | |
| return "null"; | |
| } | |
| if (isRegExpLiteral(id)) { | |
| return `_${id.pattern}_${id.flags}`; | |
| } | |
| if (isTemplateLiteral(id)) { | |
| return id.quasis.map(quasi => quasi.value.raw).join(""); | |
| } | |
| if (id.value !== undefined) { | |
| return id.value + ""; | |
| } | |
| return ""; | |
| } | |
| function wrap(state, method, id, scope) { | |
| if (state.selfReference) { | |
| if (scope.hasBinding(id.name) && !scope.hasGlobal(id.name)) { | |
| scope.rename(id.name); | |
| } else { | |
| if (!isFunction(method)) return; | |
| let build = buildPropertyMethodAssignmentWrapper; | |
| if (method.generator) { | |
| build = buildGeneratorPropertyMethodAssignmentWrapper; | |
| } | |
| const template = build({ | |
| FUNCTION: method, | |
| FUNCTION_ID: id, | |
| FUNCTION_KEY: scope.generateUidIdentifier(id.name) | |
| }).expression; | |
| const params = template.callee.body.body[0].params; | |
| for (let i = 0, len = getFunctionArity(method); i < len; i++) { | |
| params.push(scope.generateUidIdentifier("x")); | |
| } | |
| return template; | |
| } | |
| } | |
| method.id = id; | |
| scope.getProgramParent().references[id.name] = true; | |
| } | |
| function visit(node, name, scope) { | |
| const state = { | |
| selfAssignment: false, | |
| selfReference: false, | |
| outerDeclar: scope.getBindingIdentifier(name), | |
| name: name | |
| }; | |
| const binding = scope.getOwnBinding(name); | |
| if (binding) { | |
| if (binding.kind === "param") { | |
| state.selfReference = true; | |
| } else {} | |
| } else if (state.outerDeclar || scope.hasGlobal(name)) { | |
| scope.traverse(node, visitor, state); | |
| } | |
| return state; | |
| } | |
| function _default({ | |
| node, | |
| parent, | |
| scope, | |
| id | |
| }, localBinding = false, supportUnicodeId = false) { | |
| if (node.id) return; | |
| if ((isObjectProperty(parent) || isObjectMethod(parent, { | |
| kind: "method" | |
| })) && (!parent.computed || isLiteral(parent.key))) { | |
| id = parent.key; | |
| } else if (isVariableDeclarator(parent)) { | |
| id = parent.id; | |
| if (isIdentifier(id) && !localBinding) { | |
| const binding = scope.parent.getBinding(id.name); | |
| if (binding && binding.constant && scope.getBinding(id.name) === binding) { | |
| node.id = cloneNode(id); | |
| node.id[NOT_LOCAL_BINDING] = true; | |
| return; | |
| } | |
| } | |
| } else if (isAssignmentExpression(parent, { | |
| operator: "=" | |
| })) { | |
| id = parent.left; | |
| } else if (!id) { | |
| return; | |
| } | |
| let name; | |
| if (id && isLiteral(id)) { | |
| name = getNameFromLiteralId(id); | |
| } else if (id && isIdentifier(id)) { | |
| name = id.name; | |
| } | |
| if (name === undefined) { | |
| return; | |
| } | |
| if (!supportUnicodeId && isFunction(node) && /[\uD800-\uDFFF]/.test(name)) { | |
| return; | |
| } | |
| name = toBindingIdentifierName(name); | |
| const newId = identifier(name); | |
| newId[NOT_LOCAL_BINDING] = true; | |
| const state = visit(node, name, scope); | |
| return wrap(state, node, newId, scope) || node; | |
| } | |
| //# sourceMappingURL=index.js.map | |