diff options
Diffstat (limited to 'node_modules/babel-helper-function-name/lib')
-rw-r--r-- | node_modules/babel-helper-function-name/lib/index.js | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/node_modules/babel-helper-function-name/lib/index.js b/node_modules/babel-helper-function-name/lib/index.js new file mode 100644 index 000000000..bde7c8a75 --- /dev/null +++ b/node_modules/babel-helper-function-name/lib/index.js @@ -0,0 +1,133 @@ +"use strict"; + +exports.__esModule = true; + +exports.default = function (_ref) { + var node = _ref.node, + parent = _ref.parent, + scope = _ref.scope, + id = _ref.id; + + if (node.id) return; + + if ((t.isObjectProperty(parent) || t.isObjectMethod(parent, { kind: "method" })) && (!parent.computed || t.isLiteral(parent.key))) { + id = parent.key; + } else if (t.isVariableDeclarator(parent)) { + id = parent.id; + + if (t.isIdentifier(id)) { + var binding = scope.parent.getBinding(id.name); + if (binding && binding.constant && scope.getBinding(id.name) === binding) { + node.id = id; + node.id[t.NOT_LOCAL_BINDING] = true; + return; + } + } + } else if (t.isAssignmentExpression(parent)) { + id = parent.left; + } else if (!id) { + return; + } + + var name = void 0; + if (id && t.isLiteral(id)) { + name = id.value; + } else if (id && t.isIdentifier(id)) { + name = id.name; + } else { + return; + } + + name = t.toBindingIdentifierName(name); + id = t.identifier(name); + + id[t.NOT_LOCAL_BINDING] = true; + + var state = visit(node, name, scope); + return wrap(state, node, id, scope) || node; +}; + +var _babelHelperGetFunctionArity = require("babel-helper-get-function-arity"); + +var _babelHelperGetFunctionArity2 = _interopRequireDefault(_babelHelperGetFunctionArity); + +var _babelTemplate = require("babel-template"); + +var _babelTemplate2 = _interopRequireDefault(_babelTemplate); + +var _babelTypes = require("babel-types"); + +var t = _interopRequireWildcard(_babelTypes); + +function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } } + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +var buildPropertyMethodAssignmentWrapper = (0, _babelTemplate2.default)("\n (function (FUNCTION_KEY) {\n function FUNCTION_ID() {\n return FUNCTION_KEY.apply(this, arguments);\n }\n\n FUNCTION_ID.toString = function () {\n return FUNCTION_KEY.toString();\n }\n\n return FUNCTION_ID;\n })(FUNCTION)\n"); + +var buildGeneratorPropertyMethodAssignmentWrapper = (0, _babelTemplate2.default)("\n (function (FUNCTION_KEY) {\n function* FUNCTION_ID() {\n return yield* FUNCTION_KEY.apply(this, arguments);\n }\n\n FUNCTION_ID.toString = function () {\n return FUNCTION_KEY.toString();\n };\n\n return FUNCTION_ID;\n })(FUNCTION)\n"); + +var visitor = { + "ReferencedIdentifier|BindingIdentifier": function ReferencedIdentifierBindingIdentifier(path, state) { + if (path.node.name !== state.name) return; + + var localDeclar = path.scope.getBindingIdentifier(state.name); + if (localDeclar !== state.outerDeclar) return; + + state.selfReference = true; + path.stop(); + } +}; + +function wrap(state, method, id, scope) { + if (state.selfReference) { + if (scope.hasBinding(id.name) && !scope.hasGlobal(id.name)) { + scope.rename(id.name); + } else { + if (!t.isFunction(method)) return; + + var build = buildPropertyMethodAssignmentWrapper; + if (method.generator) build = buildGeneratorPropertyMethodAssignmentWrapper; + var _template = build({ + FUNCTION: method, + FUNCTION_ID: id, + FUNCTION_KEY: scope.generateUidIdentifier(id.name) + }).expression; + _template.callee._skipModulesRemap = true; + + var params = _template.callee.body.body[0].params; + for (var i = 0, len = (0, _babelHelperGetFunctionArity2.default)(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) { + var state = { + selfAssignment: false, + selfReference: false, + outerDeclar: scope.getBindingIdentifier(name), + references: [], + name: name + }; + + var 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; +} + +module.exports = exports["default"];
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