ce4c83ff
 wxy
初始提交
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = _default;
function _helperGetFunctionArity() {
var data = _interopRequireDefault(require("@babel/helper-get-function-arity"));
_helperGetFunctionArity = function _helperGetFunctionArity() {
return data;
};
return data;
}
function _template2() {
var data = _interopRequireDefault(require("@babel/template"));
_template2 = function _template2() {
return data;
};
return data;
}
function t() {
var data = _interopRequireWildcard(require("@babel/types"));
t = function t() {
return data;
};
return data;
}
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)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
var buildPropertyMethodAssignmentWrapper = (0, _template2().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, _template2().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;
var params = _template.callee.body.body[0].params;
for (var i = 0, len = (0, _helperGetFunctionArity().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;
}
function _default(_ref, localBinding) {
var node = _ref.node,
parent = _ref.parent,
scope = _ref.scope,
id = _ref.id;
if (localBinding === void 0) {
localBinding = false;
}
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) && !localBinding) {
var binding = scope.parent.getBinding(id.name);
if (binding && binding.constant && scope.getBinding(id.name) === binding) {
node.id = t().cloneNode(id);
node.id[t().NOT_LOCAL_BINDING] = true;
return;
}
}
} else if (t().isAssignmentExpression(parent)) {
id = parent.left;
} else if (!id) {
return;
}
var name;
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;
}
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