NET-Web-API-w-Angular/my-app/node_modules/@babel/plugin-transform-computed-properties/lib/index.js

168 lines
5.7 KiB
JavaScript
Executable file

"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 = exports.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, obj, prop) {
const type = prop.kind;
const key = !prop.computed && _core.types.isIdentifier(prop.key) ? _core.types.stringLiteral(prop.key.name) : prop.key;
const fn = getValue(prop);
{
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 pushComputedPropsLoose(info) {
const {
computedProps,
state,
initPropExpression,
objId,
body
} = info;
for (const prop of computedProps) {
if (_core.types.isObjectMethod(prop) && (prop.kind === "get" || prop.kind === "set")) {
if (computedProps.length === 1) {
return buildDefineAccessor(state, initPropExpression, prop);
} else {
body.push(_core.types.expressionStatement(buildDefineAccessor(state, _core.types.cloneNode(objId), prop)));
}
} else {
pushAssign(_core.types.cloneNode(objId), prop, body);
}
}
}
function pushComputedPropsSpec(info) {
const {
objId,
body,
computedProps,
state
} = info;
const CHUNK_LENGTH_CAP = 10;
let currentChunk = null;
const computedPropsChunks = [];
for (const prop of computedProps) {
if (!currentChunk || currentChunk.length === CHUNK_LENGTH_CAP) {
currentChunk = [];
computedPropsChunks.push(currentChunk);
}
currentChunk.push(prop);
}
for (const chunk of computedPropsChunks) {
const single = computedPropsChunks.length === 1;
let node = single ? info.initPropExpression : _core.types.cloneNode(objId);
for (const prop of chunk) {
if (_core.types.isObjectMethod(prop) && (prop.kind === "get" || prop.kind === "set")) {
node = buildDefineAccessor(info.state, node, prop);
} else {
node = _core.types.callExpression(state.addHelper("defineProperty"), [node, _core.types.toComputedKey(prop), getValue(prop)]);
}
}
if (single) return node;
body.push(_core.types.expressionStatement(node));
}
}
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 {
if (setComputedProperties) {
body.push(_core.types.expressionStatement(_core.types.cloneNode(objId)));
}
path.replaceWithMultiple(body);
}
}
}
}
};
});
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