Initial commit

node_modules/with/lib/index.js

@@ -0,0 +1,148 @@
+"use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const parser_1 = require("@babel/parser");
+const babel_walk_1 = require("babel-walk");
+const t = __importStar(require("@babel/types"));
+const globals_1 = __importDefault(require("./globals"));
+const parseOptions = {
+    allowReturnOutsideFunction: true,
+    allowImportExportEverywhere: true,
+};
+/**
+ * Mimic `with` as far as possible but at compile time
+ *
+ * @param obj The object part of a with expression
+ * @param src The body of the with expression
+ * @param exclude A list of variable names to explicitly exclude
+ */
+function addWith(obj, src, exclude = []) {
+    // tslint:disable-next-line: no-parameter-reassignment
+    obj = obj + '';
+    // tslint:disable-next-line: no-parameter-reassignment
+    src = src + '';
+    let ast;
+    try {
+        ast = parser_1.parse(src, parseOptions);
+    }
+    catch (e) {
+        throw Object.assign(new Error('Error parsing body of the with expression'), {
+            component: 'src',
+            babylonError: e,
+        });
+    }
+    let objAst;
+    try {
+        objAst = parser_1.parse(obj, parseOptions);
+    }
+    catch (e) {
+        throw Object.assign(new Error('Error parsing object part of the with expression'), {
+            component: 'obj',
+            babylonError: e,
+        });
+    }
+    const excludeSet = new Set([
+        'undefined',
+        'this',
+        ...exclude,
+        ...globals_1.default(objAst).map((g) => g.name),
+    ]);
+    const vars = new Set(globals_1.default(ast)
+        .map((global) => global.name)
+        .filter((v) => !excludeSet.has(v)));
+    if (vars.size === 0)
+        return src;
+    let declareLocal = '';
+    let local = 'locals_for_with';
+    let result = 'result_of_with';
+    if (t.isValidIdentifier(obj)) {
+        local = obj;
+    }
+    else {
+        while (vars.has(local) || excludeSet.has(local)) {
+            local += '_';
+        }
+        declareLocal = `var ${local} = (${obj});`;
+    }
+    while (vars.has(result) || excludeSet.has(result)) {
+        result += '_';
+    }
+    const args = [
+        'this',
+        ...Array.from(vars).map((v) => `${JSON.stringify(v)} in ${local} ?
+        ${local}.${v} :
+        typeof ${v} !== 'undefined' ? ${v} : undefined`),
+    ];
+    const unwrapped = unwrapReturns(ast, src, result);
+    return `;
+    ${declareLocal}
+    ${unwrapped.before}
+    (function (${Array.from(vars).join(', ')}) {
+      ${unwrapped.body}
+    }.call(${args.join(', ')}));
+    ${unwrapped.after};`;
+}
+exports.default = addWith;
+const unwrapReturnsVisitors = babel_walk_1.recursive({
+    Function(_node, _state, _c) {
+        // returns in these functions are not applicable
+    },
+    ReturnStatement(node, state) {
+        state.hasReturn = true;
+        let value = '';
+        if (node.argument) {
+            value = `value: (${state.source(node.argument)})`;
+        }
+        state.replace(node, `return {${value}};`);
+    },
+});
+/**
+ * Take a self calling function, and unwrap it such that return inside the function
+ * results in return outside the function
+ *
+ * @param src    Some JavaScript code representing a self-calling function
+ * @param result A temporary variable to store the result in
+ */
+function unwrapReturns(ast, src, result) {
+    const charArray = src.split('');
+    const state = {
+        hasReturn: false,
+        source(node) {
+            return src.slice(node.start, node.end);
+        },
+        replace(node, str) {
+            charArray.fill('', node.start, node.end);
+            charArray[node.start] = str;
+        },
+    };
+    unwrapReturnsVisitors(ast, state);
+    return {
+        before: state.hasReturn ? `var ${result} = ` : '',
+        body: charArray.join(''),
+        after: state.hasReturn ? `;if (${result}) return ${result}.value` : '',
+    };
+}
+module.exports = addWith;
+module.exports.default = addWith;
+//# sourceMappingURL=index.js.map