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authorlittleblack111 <littleblack11111@gmail.com>2023-10-14 15:31:11 +0800
committerlittleblack111 <littleblack11111@gmail.com>2023-10-14 15:31:11 +0800
commitaa773172311dcada759dfbaac485f4bc6e00bc21 (patch)
treeca6d9a5eff3ab8f689f9acb4f0df791d9486813d /node_modules/@babel/plugin-transform-computed-properties/lib/index.js
parentc5a5384e846f242e901e859fe600d695d8990a9a (diff)
added babel
Diffstat (limited to 'node_modules/@babel/plugin-transform-computed-properties/lib/index.js')
-rw-r--r--node_modules/@babel/plugin-transform-computed-properties/lib/index.js161
1 files changed, 161 insertions, 0 deletions
diff --git a/node_modules/@babel/plugin-transform-computed-properties/lib/index.js b/node_modules/@babel/plugin-transform-computed-properties/lib/index.js
new file mode 100644
index 00000000..8b5d93a3
--- /dev/null
+++ b/node_modules/@babel/plugin-transform-computed-properties/lib/index.js
@@ -0,0 +1,161 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+var _core = require("@babel/core");
+var _helperPluginUtils = require("@babel/helper-plugin-utils");
+var _template = require("@babel/template");
+{
+ var DefineAccessorHelper = _template.default.expression.ast`
+ function (type, obj, key, fn) {
+ var desc = { configurable: true, enumerable: true };
+ desc[type] = fn;
+ return Object.defineProperty(obj, key, desc);
+ }
+ `;
+ DefineAccessorHelper._compact = true;
+}
+var _default = (0, _helperPluginUtils.declare)((api, options) => {
+ var _api$assumption;
+ api.assertVersion(7);
+ const setComputedProperties = (_api$assumption = api.assumption("setComputedProperties")) != null ? _api$assumption : options.loose;
+ const pushComputedProps = setComputedProperties ? pushComputedPropsLoose : pushComputedPropsSpec;
+ function buildDefineAccessor(state, type, obj, key, fn) {
+ {
+ let helper;
+ if (state.availableHelper("defineAccessor")) {
+ helper = state.addHelper("defineAccessor");
+ } else {
+ const file = state.file;
+ helper = file.get("fallbackDefineAccessorHelper");
+ if (!helper) {
+ const id = file.scope.generateUidIdentifier("defineAccessor");
+ file.scope.push({
+ id,
+ init: DefineAccessorHelper
+ });
+ file.set("fallbackDefineAccessorHelper", helper = id);
+ }
+ helper = _core.types.cloneNode(helper);
+ }
+ return _core.types.callExpression(helper, [_core.types.stringLiteral(type), obj, key, fn]);
+ }
+ }
+ function getValue(prop) {
+ if (_core.types.isObjectProperty(prop)) {
+ return prop.value;
+ } else if (_core.types.isObjectMethod(prop)) {
+ return _core.types.functionExpression(null, prop.params, prop.body, prop.generator, prop.async);
+ }
+ }
+ function pushAssign(objId, prop, body) {
+ body.push(_core.types.expressionStatement(_core.types.assignmentExpression("=", _core.types.memberExpression(_core.types.cloneNode(objId), prop.key, prop.computed || _core.types.isLiteral(prop.key)), getValue(prop))));
+ }
+ function pushAccessorDefine({
+ body,
+ computedProps,
+ initPropExpression,
+ objId,
+ state
+ }, prop) {
+ const kind = prop.kind;
+ const key = !prop.computed && _core.types.isIdentifier(prop.key) ? _core.types.stringLiteral(prop.key.name) : prop.key;
+ const value = getValue(prop);
+ if (computedProps.length === 1) {
+ return buildDefineAccessor(state, kind, initPropExpression, key, value);
+ } else {
+ body.push(_core.types.expressionStatement(buildDefineAccessor(state, kind, _core.types.cloneNode(objId), key, value)));
+ }
+ }
+ function pushComputedPropsLoose(info) {
+ for (const prop of info.computedProps) {
+ if (_core.types.isObjectMethod(prop) && (prop.kind === "get" || prop.kind === "set")) {
+ const single = pushAccessorDefine(info, prop);
+ if (single) return single;
+ } else {
+ pushAssign(_core.types.cloneNode(info.objId), prop, info.body);
+ }
+ }
+ }
+ function pushComputedPropsSpec(info) {
+ const {
+ objId,
+ body,
+ computedProps,
+ state
+ } = info;
+ for (const prop of computedProps) {
+ const key = _core.types.toComputedKey(prop);
+ if (_core.types.isObjectMethod(prop) && (prop.kind === "get" || prop.kind === "set")) {
+ const single = pushAccessorDefine(info, prop);
+ if (single) return single;
+ } else {
+ const value = getValue(prop);
+ if (computedProps.length === 1) {
+ return _core.types.callExpression(state.addHelper("defineProperty"), [info.initPropExpression, key, value]);
+ } else {
+ body.push(_core.types.expressionStatement(_core.types.callExpression(state.addHelper("defineProperty"), [_core.types.cloneNode(objId), key, value])));
+ }
+ }
+ }
+ }
+ return {
+ name: "transform-computed-properties",
+ visitor: {
+ ObjectExpression: {
+ exit(path, state) {
+ const {
+ node,
+ parent,
+ scope
+ } = path;
+ let hasComputed = false;
+ for (const prop of node.properties) {
+ hasComputed = prop.computed === true;
+ if (hasComputed) break;
+ }
+ if (!hasComputed) return;
+ const initProps = [];
+ const computedProps = [];
+ let foundComputed = false;
+ for (const prop of node.properties) {
+ if (_core.types.isSpreadElement(prop)) {
+ continue;
+ }
+ if (prop.computed) {
+ foundComputed = true;
+ }
+ if (foundComputed) {
+ computedProps.push(prop);
+ } else {
+ initProps.push(prop);
+ }
+ }
+ const objId = scope.generateUidIdentifierBasedOnNode(parent);
+ const initPropExpression = _core.types.objectExpression(initProps);
+ const body = [];
+ body.push(_core.types.variableDeclaration("var", [_core.types.variableDeclarator(objId, initPropExpression)]));
+ const single = pushComputedProps({
+ scope,
+ objId,
+ body,
+ computedProps,
+ initPropExpression,
+ state
+ });
+ if (single) {
+ path.replaceWith(single);
+ } else {
+ body.push(_core.types.expressionStatement(_core.types.cloneNode(objId)));
+ path.replaceWithMultiple(body);
+ }
+ }
+ }
+ }
+ };
+});
+exports.default = _default;
+
+//# sourceMappingURL=index.js.map