Improve code quality and write tests

This commit is contained in:
Shivam Mathur
2019-09-20 08:11:20 +05:30
parent db44db4b97
commit 43178a7254
3597 changed files with 255478 additions and 785554 deletions

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MIT License
Copyright (c) 2014-present Sebastian McKenzie and other contributors
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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# @babel/plugin-transform-modules-systemjs
> This plugin transforms ES2015 modules to SystemJS
See our website [@babel/plugin-transform-modules-systemjs](https://babeljs.io/docs/en/next/babel-plugin-transform-modules-systemjs.html) for more information.
## Install
Using npm:
```sh
npm install --save-dev @babel/plugin-transform-modules-systemjs
```
or using yarn:
```sh
yarn add @babel/plugin-transform-modules-systemjs --dev
```

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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
function _helperPluginUtils() {
const data = require("@babel/helper-plugin-utils");
_helperPluginUtils = function () {
return data;
};
return data;
}
function _helperHoistVariables() {
const data = _interopRequireDefault(require("@babel/helper-hoist-variables"));
_helperHoistVariables = function () {
return data;
};
return data;
}
function _core() {
const data = require("@babel/core");
_core = function () {
return data;
};
return data;
}
function _utils() {
const data = require("babel-plugin-dynamic-import-node/utils");
_utils = function () {
return data;
};
return data;
}
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
const buildTemplate = (0, _core().template)(`
SYSTEM_REGISTER(MODULE_NAME, SOURCES, function (EXPORT_IDENTIFIER, CONTEXT_IDENTIFIER) {
"use strict";
BEFORE_BODY;
return {
setters: SETTERS,
execute: function () {
BODY;
}
};
});
`);
const buildExportAll = (0, _core().template)(`
for (var KEY in TARGET) {
if (KEY !== "default" && KEY !== "__esModule") EXPORT_OBJ[KEY] = TARGET[KEY];
}
`);
const MISSING_PLUGIN_WARNING = `\
WARNING: Dynamic import() transformation must be enabled using the
@babel/plugin-proposal-dynamic-import plugin. Babel 8 will
no longer transform import() without using that plugin.
`;
function constructExportCall(path, exportIdent, exportNames, exportValues, exportStarTarget) {
const statements = [];
if (exportNames.length === 1) {
statements.push(_core().types.expressionStatement(_core().types.callExpression(exportIdent, [_core().types.stringLiteral(exportNames[0]), exportValues[0]])));
} else if (!exportStarTarget) {
const objectProperties = [];
for (let i = 0; i < exportNames.length; i++) {
const exportName = exportNames[i];
const exportValue = exportValues[i];
objectProperties.push(_core().types.objectProperty(_core().types.identifier(exportName), exportValue));
}
statements.push(_core().types.expressionStatement(_core().types.callExpression(exportIdent, [_core().types.objectExpression(objectProperties)])));
} else {
const exportObj = path.scope.generateUid("exportObj");
statements.push(_core().types.variableDeclaration("var", [_core().types.variableDeclarator(_core().types.identifier(exportObj), _core().types.objectExpression([]))]));
statements.push(buildExportAll({
KEY: path.scope.generateUidIdentifier("key"),
EXPORT_OBJ: _core().types.identifier(exportObj),
TARGET: exportStarTarget
}));
for (let i = 0; i < exportNames.length; i++) {
const exportName = exportNames[i];
const exportValue = exportValues[i];
statements.push(_core().types.expressionStatement(_core().types.assignmentExpression("=", _core().types.memberExpression(_core().types.identifier(exportObj), _core().types.identifier(exportName)), exportValue)));
}
statements.push(_core().types.expressionStatement(_core().types.callExpression(exportIdent, [_core().types.identifier(exportObj)])));
}
return statements;
}
var _default = (0, _helperPluginUtils().declare)((api, options) => {
api.assertVersion(7);
const {
systemGlobal = "System"
} = options;
const IGNORE_REASSIGNMENT_SYMBOL = Symbol();
const reassignmentVisitor = {
"AssignmentExpression|UpdateExpression"(path) {
if (path.node[IGNORE_REASSIGNMENT_SYMBOL]) return;
path.node[IGNORE_REASSIGNMENT_SYMBOL] = true;
const arg = path.get(path.isAssignmentExpression() ? "left" : "argument");
if (arg.isObjectPattern() || arg.isArrayPattern()) {
const exprs = [path.node];
for (const name of Object.keys(arg.getBindingIdentifiers())) {
if (this.scope.getBinding(name) !== path.scope.getBinding(name)) {
return;
}
const exportedNames = this.exports[name];
if (!exportedNames) return;
for (const exportedName of exportedNames) {
exprs.push(this.buildCall(exportedName, _core().types.identifier(name)).expression);
}
}
path.replaceWith(_core().types.sequenceExpression(exprs));
return;
}
if (!arg.isIdentifier()) return;
const name = arg.node.name;
if (this.scope.getBinding(name) !== path.scope.getBinding(name)) return;
const exportedNames = this.exports[name];
if (!exportedNames) return;
let node = path.node;
const isPostUpdateExpression = path.isUpdateExpression({
prefix: false
});
if (isPostUpdateExpression) {
node = _core().types.binaryExpression(node.operator[0], _core().types.unaryExpression("+", _core().types.cloneNode(node.argument)), _core().types.numericLiteral(1));
}
for (const exportedName of exportedNames) {
node = this.buildCall(exportedName, node).expression;
}
if (isPostUpdateExpression) {
node = _core().types.sequenceExpression([node, path.node]);
}
path.replaceWith(node);
}
};
return {
name: "transform-modules-systemjs",
pre() {
this.file.set("@babel/plugin-transform-modules-*", "systemjs");
},
visitor: {
CallExpression(path, state) {
if (_core().types.isImport(path.node.callee)) {
if (!this.file.has("@babel/plugin-proposal-dynamic-import")) {
console.warn(MISSING_PLUGIN_WARNING);
}
path.replaceWith(_core().types.callExpression(_core().types.memberExpression(_core().types.identifier(state.contextIdent), _core().types.identifier("import")), [(0, _utils().getImportSource)(_core().types, path.node)]));
}
},
MetaProperty(path, state) {
if (path.node.meta.name === "import" && path.node.property.name === "meta") {
path.replaceWith(_core().types.memberExpression(_core().types.identifier(state.contextIdent), _core().types.identifier("meta")));
}
},
ReferencedIdentifier(path, state) {
if (path.node.name === "__moduleName" && !path.scope.hasBinding("__moduleName")) {
path.replaceWith(_core().types.memberExpression(_core().types.identifier(state.contextIdent), _core().types.identifier("id")));
}
},
Program: {
enter(path, state) {
state.contextIdent = path.scope.generateUid("context");
},
exit(path, state) {
const undefinedIdent = path.scope.buildUndefinedNode();
const exportIdent = path.scope.generateUid("export");
const contextIdent = state.contextIdent;
const exportMap = Object.create(null);
const modules = [];
let beforeBody = [];
const setters = [];
const sources = [];
const variableIds = [];
const removedPaths = [];
function addExportName(key, val) {
exportMap[key] = exportMap[key] || [];
exportMap[key].push(val);
}
function pushModule(source, key, specifiers) {
let module;
modules.forEach(function (m) {
if (m.key === source) {
module = m;
}
});
if (!module) {
modules.push(module = {
key: source,
imports: [],
exports: []
});
}
module[key] = module[key].concat(specifiers);
}
function buildExportCall(name, val) {
return _core().types.expressionStatement(_core().types.callExpression(_core().types.identifier(exportIdent), [_core().types.stringLiteral(name), val]));
}
const exportNames = [];
const exportValues = [];
const body = path.get("body");
for (const path of body) {
if (path.isFunctionDeclaration()) {
beforeBody.push(path.node);
removedPaths.push(path);
} else if (path.isClassDeclaration()) {
variableIds.push(path.node.id);
path.replaceWith(_core().types.expressionStatement(_core().types.assignmentExpression("=", _core().types.cloneNode(path.node.id), _core().types.toExpression(path.node))));
} else if (path.isImportDeclaration()) {
const source = path.node.source.value;
pushModule(source, "imports", path.node.specifiers);
for (const name of Object.keys(path.getBindingIdentifiers())) {
path.scope.removeBinding(name);
variableIds.push(_core().types.identifier(name));
}
path.remove();
} else if (path.isExportAllDeclaration()) {
pushModule(path.node.source.value, "exports", path.node);
path.remove();
} else if (path.isExportDefaultDeclaration()) {
const declar = path.get("declaration");
const id = declar.node.id;
if (declar.isClassDeclaration()) {
if (id) {
exportNames.push("default");
exportValues.push(undefinedIdent);
variableIds.push(id);
addExportName(id.name, "default");
path.replaceWith(_core().types.expressionStatement(_core().types.assignmentExpression("=", _core().types.cloneNode(id), _core().types.toExpression(declar.node))));
} else {
exportNames.push("default");
exportValues.push(_core().types.toExpression(declar.node));
removedPaths.push(path);
}
} else if (declar.isFunctionDeclaration()) {
if (id) {
beforeBody.push(declar.node);
exportNames.push("default");
exportValues.push(_core().types.cloneNode(id));
addExportName(id.name, "default");
} else {
exportNames.push("default");
exportValues.push(_core().types.toExpression(declar.node));
}
removedPaths.push(path);
} else {
path.replaceWith(buildExportCall("default", declar.node));
}
} else if (path.isExportNamedDeclaration()) {
const declar = path.get("declaration");
if (declar.node) {
path.replaceWith(declar);
if (path.isFunction()) {
const node = declar.node;
const name = node.id.name;
addExportName(name, name);
beforeBody.push(node);
exportNames.push(name);
exportValues.push(_core().types.cloneNode(node.id));
removedPaths.push(path);
} else if (path.isClass()) {
const name = declar.node.id.name;
exportNames.push(name);
exportValues.push(undefinedIdent);
variableIds.push(declar.node.id);
path.replaceWith(_core().types.expressionStatement(_core().types.assignmentExpression("=", _core().types.cloneNode(declar.node.id), _core().types.toExpression(declar.node))));
addExportName(name, name);
} else {
for (const name of Object.keys(declar.getBindingIdentifiers())) {
addExportName(name, name);
}
}
} else {
const specifiers = path.node.specifiers;
if (specifiers && specifiers.length) {
if (path.node.source) {
pushModule(path.node.source.value, "exports", specifiers);
path.remove();
} else {
const nodes = [];
for (const specifier of specifiers) {
const binding = path.scope.getBinding(specifier.local.name);
if (binding && _core().types.isFunctionDeclaration(binding.path.node)) {
exportNames.push(specifier.exported.name);
exportValues.push(_core().types.cloneNode(specifier.local));
} else if (!binding) {
nodes.push(buildExportCall(specifier.exported.name, specifier.local));
}
addExportName(specifier.local.name, specifier.exported.name);
}
path.replaceWithMultiple(nodes);
}
}
}
}
}
modules.forEach(function (specifiers) {
let setterBody = [];
const target = path.scope.generateUid(specifiers.key);
for (let specifier of specifiers.imports) {
if (_core().types.isImportNamespaceSpecifier(specifier)) {
setterBody.push(_core().types.expressionStatement(_core().types.assignmentExpression("=", specifier.local, _core().types.identifier(target))));
} else if (_core().types.isImportDefaultSpecifier(specifier)) {
specifier = _core().types.importSpecifier(specifier.local, _core().types.identifier("default"));
}
if (_core().types.isImportSpecifier(specifier)) {
setterBody.push(_core().types.expressionStatement(_core().types.assignmentExpression("=", specifier.local, _core().types.memberExpression(_core().types.identifier(target), specifier.imported))));
}
}
if (specifiers.exports.length) {
const exportNames = [];
const exportValues = [];
let hasExportStar = false;
for (const node of specifiers.exports) {
if (_core().types.isExportAllDeclaration(node)) {
hasExportStar = true;
} else if (_core().types.isExportSpecifier(node)) {
exportNames.push(node.exported.name);
exportValues.push(_core().types.memberExpression(_core().types.identifier(target), node.local));
} else {}
}
setterBody = setterBody.concat(constructExportCall(path, _core().types.identifier(exportIdent), exportNames, exportValues, hasExportStar ? _core().types.identifier(target) : null));
}
sources.push(_core().types.stringLiteral(specifiers.key));
setters.push(_core().types.functionExpression(null, [_core().types.identifier(target)], _core().types.blockStatement(setterBody)));
});
let moduleName = this.getModuleName();
if (moduleName) moduleName = _core().types.stringLiteral(moduleName);
(0, _helperHoistVariables().default)(path, (id, name, hasInit) => {
variableIds.push(id);
if (!hasInit) {
exportNames.push(name);
exportValues.push(undefinedIdent);
}
}, null);
if (variableIds.length) {
beforeBody.unshift(_core().types.variableDeclaration("var", variableIds.map(id => _core().types.variableDeclarator(id))));
}
if (exportNames.length) {
beforeBody = beforeBody.concat(constructExportCall(path, _core().types.identifier(exportIdent), exportNames, exportValues, null));
}
path.traverse(reassignmentVisitor, {
exports: exportMap,
buildCall: buildExportCall,
scope: path.scope
});
for (const path of removedPaths) {
path.remove();
}
path.node.body = [buildTemplate({
SYSTEM_REGISTER: _core().types.memberExpression(_core().types.identifier(systemGlobal), _core().types.identifier("register")),
BEFORE_BODY: beforeBody,
MODULE_NAME: moduleName,
SETTERS: _core().types.arrayExpression(setters),
SOURCES: _core().types.arrayExpression(sources),
BODY: path.node.body,
EXPORT_IDENTIFIER: _core().types.identifier(exportIdent),
CONTEXT_IDENTIFIER: _core().types.identifier(contextIdent)
})];
}
}
}
};
});
exports.default = _default;

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{
"_args": [
[
"@babel/plugin-transform-modules-systemjs@7.5.0",
"E:\\python\\setup-php"
]
],
"_from": "@babel/plugin-transform-modules-systemjs@7.5.0",
"_id": "@babel/plugin-transform-modules-systemjs@7.5.0",
"_inBundle": false,
"_integrity": "sha512-Q2m56tyoQWmuNGxEtUyeEkm6qJYFqs4c+XyXH5RAuYxObRNz9Zgj/1g2GMnjYp2EUyEy7YTrxliGCXzecl/vJg==",
"_location": "/@babel/plugin-transform-modules-systemjs",
"_phantomChildren": {},
"_requested": {
"type": "version",
"registry": true,
"raw": "@babel/plugin-transform-modules-systemjs@7.5.0",
"name": "@babel/plugin-transform-modules-systemjs",
"escapedName": "@babel%2fplugin-transform-modules-systemjs",
"scope": "@babel",
"rawSpec": "7.5.0",
"saveSpec": null,
"fetchSpec": "7.5.0"
},
"_requiredBy": [
"/@babel/preset-env"
],
"_resolved": "https://registry.npmjs.org/@babel/plugin-transform-modules-systemjs/-/plugin-transform-modules-systemjs-7.5.0.tgz",
"_spec": "7.5.0",
"_where": "E:\\python\\setup-php",
"dependencies": {
"@babel/helper-hoist-variables": "^7.4.4",
"@babel/helper-plugin-utils": "^7.0.0",
"babel-plugin-dynamic-import-node": "^2.3.0"
},
"description": "This plugin transforms ES2015 modules to SystemJS",
"devDependencies": {
"@babel/core": "^7.5.0",
"@babel/helper-plugin-test-runner": "^7.0.0",
"@babel/plugin-syntax-dynamic-import": "^7.2.0"
},
"gitHead": "49da9a07c81156e997e60146eb001ea77b7044c4",
"keywords": [
"babel-plugin"
],
"license": "MIT",
"main": "lib/index.js",
"name": "@babel/plugin-transform-modules-systemjs",
"peerDependencies": {
"@babel/core": "^7.0.0-0"
},
"publishConfig": {
"access": "public"
},
"repository": {
"type": "git",
"url": "https://github.com/babel/babel/tree/master/packages/babel-plugin-transform-modules-systemjs"
},
"version": "7.5.0"
}