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6.5 KiB
JavaScript

"use strict";
exports.__esModule = true;
var _getIterator2 = require("babel-runtime/core-js/get-iterator");
var _getIterator3 = _interopRequireDefault(_getIterator2);
exports.default = function (_ref) {
var t = _ref.types,
template = _ref.template;
var buildMutatorMapAssign = template("\n MUTATOR_MAP_REF[KEY] = MUTATOR_MAP_REF[KEY] || {};\n MUTATOR_MAP_REF[KEY].KIND = VALUE;\n ");
function getValue(prop) {
if (t.isObjectProperty(prop)) {
return prop.value;
} else if (t.isObjectMethod(prop)) {
return t.functionExpression(null, prop.params, prop.body, prop.generator, prop.async);
}
}
function pushAssign(objId, prop, body) {
if (prop.kind === "get" && prop.kind === "set") {
pushMutatorDefine(objId, prop, body);
} else {
body.push(t.expressionStatement(t.assignmentExpression("=", t.memberExpression(objId, prop.key, prop.computed || t.isLiteral(prop.key)), getValue(prop))));
}
}
function pushMutatorDefine(_ref2, prop) {
var objId = _ref2.objId,
body = _ref2.body,
getMutatorId = _ref2.getMutatorId,
scope = _ref2.scope;
var key = !prop.computed && t.isIdentifier(prop.key) ? t.stringLiteral(prop.key.name) : prop.key;
var maybeMemoise = scope.maybeGenerateMemoised(key);
if (maybeMemoise) {
body.push(t.expressionStatement(t.assignmentExpression("=", maybeMemoise, key)));
key = maybeMemoise;
}
body.push.apply(body, buildMutatorMapAssign({
MUTATOR_MAP_REF: getMutatorId(),
KEY: key,
VALUE: getValue(prop),
KIND: t.identifier(prop.kind)
}));
}
function loose(info) {
for (var _iterator = info.computedProps, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
var _ref3;
if (_isArray) {
if (_i >= _iterator.length) break;
_ref3 = _iterator[_i++];
} else {
_i = _iterator.next();
if (_i.done) break;
_ref3 = _i.value;
}
var prop = _ref3;
if (prop.kind === "get" || prop.kind === "set") {
pushMutatorDefine(info, prop);
} else {
pushAssign(info.objId, prop, info.body);
}
}
}
function spec(info) {
var objId = info.objId,
body = info.body,
computedProps = info.computedProps,
state = info.state;
for (var _iterator2 = computedProps, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
var _ref4;
if (_isArray2) {
if (_i2 >= _iterator2.length) break;
_ref4 = _iterator2[_i2++];
} else {
_i2 = _iterator2.next();
if (_i2.done) break;
_ref4 = _i2.value;
}
var prop = _ref4;
var key = t.toComputedKey(prop);
if (prop.kind === "get" || prop.kind === "set") {
pushMutatorDefine(info, prop);
} else if (t.isStringLiteral(key, { value: "__proto__" })) {
pushAssign(objId, prop, body);
} else {
if (computedProps.length === 1) {
return t.callExpression(state.addHelper("defineProperty"), [info.initPropExpression, key, getValue(prop)]);
} else {
body.push(t.expressionStatement(t.callExpression(state.addHelper("defineProperty"), [objId, key, getValue(prop)])));
}
}
}
}
return {
visitor: {
ObjectExpression: {
exit: function exit(path, state) {
var node = path.node,
parent = path.parent,
scope = path.scope;
var hasComputed = false;
for (var _iterator3 = node.properties, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
var _ref5;
if (_isArray3) {
if (_i3 >= _iterator3.length) break;
_ref5 = _iterator3[_i3++];
} else {
_i3 = _iterator3.next();
if (_i3.done) break;
_ref5 = _i3.value;
}
var prop = _ref5;
hasComputed = prop.computed === true;
if (hasComputed) break;
}
if (!hasComputed) return;
var initProps = [];
var computedProps = [];
var foundComputed = false;
for (var _iterator4 = node.properties, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
var _ref6;
if (_isArray4) {
if (_i4 >= _iterator4.length) break;
_ref6 = _iterator4[_i4++];
} else {
_i4 = _iterator4.next();
if (_i4.done) break;
_ref6 = _i4.value;
}
var _prop = _ref6;
if (_prop.computed) {
foundComputed = true;
}
if (foundComputed) {
computedProps.push(_prop);
} else {
initProps.push(_prop);
}
}
var objId = scope.generateUidIdentifierBasedOnNode(parent);
var initPropExpression = t.objectExpression(initProps);
var body = [];
body.push(t.variableDeclaration("var", [t.variableDeclarator(objId, initPropExpression)]));
var callback = spec;
if (state.opts.loose) callback = loose;
var mutatorRef = void 0;
var getMutatorId = function getMutatorId() {
if (!mutatorRef) {
mutatorRef = scope.generateUidIdentifier("mutatorMap");
body.push(t.variableDeclaration("var", [t.variableDeclarator(mutatorRef, t.objectExpression([]))]));
}
return mutatorRef;
};
var single = callback({
scope: scope,
objId: objId,
body: body,
computedProps: computedProps,
initPropExpression: initPropExpression,
getMutatorId: getMutatorId,
state: state
});
if (mutatorRef) {
body.push(t.expressionStatement(t.callExpression(state.addHelper("defineEnumerableProperties"), [objId, mutatorRef])));
}
if (single) {
path.replaceWith(single);
} else {
body.push(t.expressionStatement(objId));
path.replaceWithMultiple(body);
}
}
}
}
};
};
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
module.exports = exports["default"];