You can not select more than 25 topics
			Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
		
		
		
		
		
			
		
			
				
					
					
						
							155 lines
						
					
					
						
							4.5 KiB
						
					
					
				
			
		
		
	
	
							155 lines
						
					
					
						
							4.5 KiB
						
					
					
				| "use strict";
 | |
| Object.defineProperty(exports, "__esModule", { value: true });
 | |
| exports.regexpCode = exports.getEsmExportName = exports.getProperty = exports.safeStringify = exports.stringify = exports.strConcat = exports.addCodeArg = exports.str = exports._ = exports.nil = exports._Code = exports.Name = exports.IDENTIFIER = exports._CodeOrName = void 0;
 | |
| class _CodeOrName {
 | |
| }
 | |
| exports._CodeOrName = _CodeOrName;
 | |
| exports.IDENTIFIER = /^[a-z$_][a-z$_0-9]*$/i;
 | |
| class Name extends _CodeOrName {
 | |
|     constructor(s) {
 | |
|         super();
 | |
|         if (!exports.IDENTIFIER.test(s))
 | |
|             throw new Error("CodeGen: name must be a valid identifier");
 | |
|         this.str = s;
 | |
|     }
 | |
|     toString() {
 | |
|         return this.str;
 | |
|     }
 | |
|     emptyStr() {
 | |
|         return false;
 | |
|     }
 | |
|     get names() {
 | |
|         return { [this.str]: 1 };
 | |
|     }
 | |
| }
 | |
| exports.Name = Name;
 | |
| class _Code extends _CodeOrName {
 | |
|     constructor(code) {
 | |
|         super();
 | |
|         this._items = typeof code === "string" ? [code] : code;
 | |
|     }
 | |
|     toString() {
 | |
|         return this.str;
 | |
|     }
 | |
|     emptyStr() {
 | |
|         if (this._items.length > 1)
 | |
|             return false;
 | |
|         const item = this._items[0];
 | |
|         return item === "" || item === '""';
 | |
|     }
 | |
|     get str() {
 | |
|         var _a;
 | |
|         return ((_a = this._str) !== null && _a !== void 0 ? _a : (this._str = this._items.reduce((s, c) => `${s}${c}`, "")));
 | |
|     }
 | |
|     get names() {
 | |
|         var _a;
 | |
|         return ((_a = this._names) !== null && _a !== void 0 ? _a : (this._names = this._items.reduce((names, c) => {
 | |
|             if (c instanceof Name)
 | |
|                 names[c.str] = (names[c.str] || 0) + 1;
 | |
|             return names;
 | |
|         }, {})));
 | |
|     }
 | |
| }
 | |
| exports._Code = _Code;
 | |
| exports.nil = new _Code("");
 | |
| function _(strs, ...args) {
 | |
|     const code = [strs[0]];
 | |
|     let i = 0;
 | |
|     while (i < args.length) {
 | |
|         addCodeArg(code, args[i]);
 | |
|         code.push(strs[++i]);
 | |
|     }
 | |
|     return new _Code(code);
 | |
| }
 | |
| exports._ = _;
 | |
| const plus = new _Code("+");
 | |
| function str(strs, ...args) {
 | |
|     const expr = [safeStringify(strs[0])];
 | |
|     let i = 0;
 | |
|     while (i < args.length) {
 | |
|         expr.push(plus);
 | |
|         addCodeArg(expr, args[i]);
 | |
|         expr.push(plus, safeStringify(strs[++i]));
 | |
|     }
 | |
|     optimize(expr);
 | |
|     return new _Code(expr);
 | |
| }
 | |
| exports.str = str;
 | |
| function addCodeArg(code, arg) {
 | |
|     if (arg instanceof _Code)
 | |
|         code.push(...arg._items);
 | |
|     else if (arg instanceof Name)
 | |
|         code.push(arg);
 | |
|     else
 | |
|         code.push(interpolate(arg));
 | |
| }
 | |
| exports.addCodeArg = addCodeArg;
 | |
| function optimize(expr) {
 | |
|     let i = 1;
 | |
|     while (i < expr.length - 1) {
 | |
|         if (expr[i] === plus) {
 | |
|             const res = mergeExprItems(expr[i - 1], expr[i + 1]);
 | |
|             if (res !== undefined) {
 | |
|                 expr.splice(i - 1, 3, res);
 | |
|                 continue;
 | |
|             }
 | |
|             expr[i++] = "+";
 | |
|         }
 | |
|         i++;
 | |
|     }
 | |
| }
 | |
| function mergeExprItems(a, b) {
 | |
|     if (b === '""')
 | |
|         return a;
 | |
|     if (a === '""')
 | |
|         return b;
 | |
|     if (typeof a == "string") {
 | |
|         if (b instanceof Name || a[a.length - 1] !== '"')
 | |
|             return;
 | |
|         if (typeof b != "string")
 | |
|             return `${a.slice(0, -1)}${b}"`;
 | |
|         if (b[0] === '"')
 | |
|             return a.slice(0, -1) + b.slice(1);
 | |
|         return;
 | |
|     }
 | |
|     if (typeof b == "string" && b[0] === '"' && !(a instanceof Name))
 | |
|         return `"${a}${b.slice(1)}`;
 | |
|     return;
 | |
| }
 | |
| function strConcat(c1, c2) {
 | |
|     return c2.emptyStr() ? c1 : c1.emptyStr() ? c2 : str `${c1}${c2}`;
 | |
| }
 | |
| exports.strConcat = strConcat;
 | |
| // TODO do not allow arrays here
 | |
| function interpolate(x) {
 | |
|     return typeof x == "number" || typeof x == "boolean" || x === null
 | |
|         ? x
 | |
|         : safeStringify(Array.isArray(x) ? x.join(",") : x);
 | |
| }
 | |
| function stringify(x) {
 | |
|     return new _Code(safeStringify(x));
 | |
| }
 | |
| exports.stringify = stringify;
 | |
| function safeStringify(x) {
 | |
|     return JSON.stringify(x)
 | |
|         .replace(/\u2028/g, "\\u2028")
 | |
|         .replace(/\u2029/g, "\\u2029");
 | |
| }
 | |
| exports.safeStringify = safeStringify;
 | |
| function getProperty(key) {
 | |
|     return typeof key == "string" && exports.IDENTIFIER.test(key) ? new _Code(`.${key}`) : _ `[${key}]`;
 | |
| }
 | |
| exports.getProperty = getProperty;
 | |
| //Does best effort to format the name properly
 | |
| function getEsmExportName(key) {
 | |
|     if (typeof key == "string" && exports.IDENTIFIER.test(key)) {
 | |
|         return new _Code(`${key}`);
 | |
|     }
 | |
|     throw new Error(`CodeGen: invalid export name: ${key}, use explicit $id name mapping`);
 | |
| }
 | |
| exports.getEsmExportName = getEsmExportName;
 | |
| function regexpCode(rx) {
 | |
|     return new _Code(rx.toString());
 | |
| }
 | |
| exports.regexpCode = regexpCode;
 | |
| //# sourceMappingURL=code.js.map
 |