[6a3a178] | 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | exports.regexpCode = 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;
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| 4 | class _CodeOrName {
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| 5 | }
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| 6 | exports._CodeOrName = _CodeOrName;
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| 7 | exports.IDENTIFIER = /^[a-z$_][a-z$_0-9]*$/i;
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| 8 | class Name extends _CodeOrName {
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| 9 | constructor(s) {
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| 10 | super();
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| 11 | if (!exports.IDENTIFIER.test(s))
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| 12 | throw new Error("CodeGen: name must be a valid identifier");
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| 13 | this.str = s;
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| 14 | }
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| 15 | toString() {
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| 16 | return this.str;
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| 17 | }
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| 18 | emptyStr() {
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| 19 | return false;
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| 20 | }
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| 21 | get names() {
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| 22 | return { [this.str]: 1 };
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| 23 | }
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| 24 | }
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| 25 | exports.Name = Name;
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| 26 | class _Code extends _CodeOrName {
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| 27 | constructor(code) {
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| 28 | super();
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| 29 | this._items = typeof code === "string" ? [code] : code;
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| 30 | }
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| 31 | toString() {
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| 32 | return this.str;
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| 33 | }
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| 34 | emptyStr() {
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| 35 | if (this._items.length > 1)
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| 36 | return false;
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| 37 | const item = this._items[0];
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| 38 | return item === "" || item === '""';
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| 39 | }
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| 40 | get str() {
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| 41 | var _a;
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| 42 | return ((_a = this._str) !== null && _a !== void 0 ? _a : (this._str = this._items.reduce((s, c) => `${s}${c}`, "")));
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| 43 | }
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| 44 | get names() {
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| 45 | var _a;
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| 46 | return ((_a = this._names) !== null && _a !== void 0 ? _a : (this._names = this._items.reduce((names, c) => {
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| 47 | if (c instanceof Name)
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| 48 | names[c.str] = (names[c.str] || 0) + 1;
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| 49 | return names;
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| 50 | }, {})));
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| 51 | }
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| 52 | }
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| 53 | exports._Code = _Code;
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| 54 | exports.nil = new _Code("");
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| 55 | function _(strs, ...args) {
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| 56 | const code = [strs[0]];
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| 57 | let i = 0;
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| 58 | while (i < args.length) {
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| 59 | addCodeArg(code, args[i]);
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| 60 | code.push(strs[++i]);
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| 61 | }
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| 62 | return new _Code(code);
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| 63 | }
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| 64 | exports._ = _;
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| 65 | const plus = new _Code("+");
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| 66 | function str(strs, ...args) {
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| 67 | const expr = [safeStringify(strs[0])];
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| 68 | let i = 0;
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| 69 | while (i < args.length) {
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| 70 | expr.push(plus);
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| 71 | addCodeArg(expr, args[i]);
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| 72 | expr.push(plus, safeStringify(strs[++i]));
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| 73 | }
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| 74 | optimize(expr);
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| 75 | return new _Code(expr);
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| 76 | }
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| 77 | exports.str = str;
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| 78 | function addCodeArg(code, arg) {
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| 79 | if (arg instanceof _Code)
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| 80 | code.push(...arg._items);
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| 81 | else if (arg instanceof Name)
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| 82 | code.push(arg);
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| 83 | else
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| 84 | code.push(interpolate(arg));
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| 85 | }
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| 86 | exports.addCodeArg = addCodeArg;
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| 87 | function optimize(expr) {
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| 88 | let i = 1;
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| 89 | while (i < expr.length - 1) {
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| 90 | if (expr[i] === plus) {
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| 91 | const res = mergeExprItems(expr[i - 1], expr[i + 1]);
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| 92 | if (res !== undefined) {
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| 93 | expr.splice(i - 1, 3, res);
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| 94 | continue;
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| 95 | }
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| 96 | expr[i++] = "+";
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| 97 | }
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| 98 | i++;
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| 99 | }
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| 100 | }
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| 101 | function mergeExprItems(a, b) {
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| 102 | if (b === '""')
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| 103 | return a;
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| 104 | if (a === '""')
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| 105 | return b;
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| 106 | if (typeof a == "string") {
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| 107 | if (b instanceof Name || a[a.length - 1] !== '"')
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| 108 | return;
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| 109 | if (typeof b != "string")
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| 110 | return `${a.slice(0, -1)}${b}"`;
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| 111 | if (b[0] === '"')
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| 112 | return a.slice(0, -1) + b.slice(1);
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| 113 | return;
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| 114 | }
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| 115 | if (typeof b == "string" && b[0] === '"' && !(a instanceof Name))
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| 116 | return `"${a}${b.slice(1)}`;
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| 117 | return;
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| 118 | }
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| 119 | function strConcat(c1, c2) {
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| 120 | return c2.emptyStr() ? c1 : c1.emptyStr() ? c2 : str `${c1}${c2}`;
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| 121 | }
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| 122 | exports.strConcat = strConcat;
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| 123 | // TODO do not allow arrays here
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| 124 | function interpolate(x) {
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| 125 | return typeof x == "number" || typeof x == "boolean" || x === null
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| 126 | ? x
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| 127 | : safeStringify(Array.isArray(x) ? x.join(",") : x);
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| 128 | }
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| 129 | function stringify(x) {
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| 130 | return new _Code(safeStringify(x));
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| 131 | }
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| 132 | exports.stringify = stringify;
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| 133 | function safeStringify(x) {
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| 134 | return JSON.stringify(x)
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| 135 | .replace(/\u2028/g, "\\u2028")
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| 136 | .replace(/\u2029/g, "\\u2029");
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| 137 | }
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| 138 | exports.safeStringify = safeStringify;
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| 139 | function getProperty(key) {
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| 140 | return typeof key == "string" && exports.IDENTIFIER.test(key) ? new _Code(`.${key}`) : _ `[${key}]`;
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| 141 | }
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| 142 | exports.getProperty = getProperty;
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| 143 | function regexpCode(rx) {
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| 144 | return new _Code(rx.toString());
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| 145 | }
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| 146 | exports.regexpCode = regexpCode;
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| 147 | //# sourceMappingURL=code.js.map |
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