218 lines
6.6 KiB
JavaScript
218 lines
6.6 KiB
JavaScript
'use strict';
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function genString(input, options = {}) {
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const string_ = JSON.stringify(input);
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if (!options.singleQuotes) {
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return JSON.stringify(input);
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}
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return `'${escapeString(string_)}'`;
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}
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const NEEDS_ESCAPE_RE = /[\n\r'\\\u2028\u2029]/;
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const QUOTE_NEWLINE_RE = /([\n\r'\u2028\u2029])/g;
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const BACKSLASH_RE = /\\/g;
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function escapeString(id) {
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if (!NEEDS_ESCAPE_RE.test(id)) {
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return id;
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}
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return id.replace(BACKSLASH_RE, "\\\\").replace(QUOTE_NEWLINE_RE, "\\$1");
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}
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function genImport(specifier, imports, options = {}) {
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return _genStatement("import", specifier, imports, options);
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}
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function genTypeImport(specifier, imports, options = {}) {
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return _genStatement("import type", specifier, imports, options);
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}
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function genTypeExport(specifier, imports, options = {}) {
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return _genStatement("export type", specifier, imports, options);
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}
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const genInlineTypeImport = (specifier, name = "default", options = {}) => {
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return `typeof ${genDynamicImport(specifier, { ...options, wrapper: false })}.${name}`;
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};
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function genExport(specifier, exports, options = {}) {
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return _genStatement("export", specifier, exports, options);
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}
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function _genStatement(type, specifier, names, options = {}) {
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const specifierString = genString(specifier, options);
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if (!names) {
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return `${type} ${specifierString};`;
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}
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const nameArray = Array.isArray(names);
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const _names = (nameArray ? names : [names]).map((index) => {
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if (typeof index === "string") {
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return { name: index };
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}
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if (index.name === index.as) {
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index = { name: index.name };
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}
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return index;
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});
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const namesString = _names.map((index) => index.as ? `${index.name} as ${index.as}` : index.name).join(", ");
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if (nameArray) {
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return `${type} { ${namesString} } from ${genString(specifier, options)}${_genAssertClause(type, options.assert)};`;
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}
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return `${type} ${namesString} from ${genString(specifier, options)}${_genAssertClause(type, options.assert)};`;
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}
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function _genAssertClause(type, assert) {
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if (type === "import type" || type === "export type") {
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return "";
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}
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if (!assert || typeof assert !== "object") {
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return "";
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}
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return ` assert { type: ${genString(assert.type)} }`;
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}
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function genDynamicImport(specifier, options = {}) {
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const commentString = options.comment ? ` /* ${options.comment} */` : "";
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const wrapperString = options.wrapper === false ? "" : "() => ";
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const ineropString = options.interopDefault ? ".then(m => m.default || m)" : "";
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const optionsString = _genDynamicImportOptions(options);
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return `${wrapperString}import(${genString(specifier, options)}${commentString}${optionsString})${ineropString}`;
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}
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function _genDynamicImportOptions(options = {}) {
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return options.assert && typeof options.assert === "object" ? `, { assert: { type: ${genString(options.assert.type)} } }` : "";
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}
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function genSafeVariableName(name) {
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if (reservedNames.has(name)) {
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return `_${name}`;
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}
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return name.replace(/^\d/, (r) => `_${r}`).replace(/\W/g, (r) => "_" + r.charCodeAt(0));
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}
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const reservedNames = /* @__PURE__ */ new Set([
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"Infinity",
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"NaN",
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"arguments",
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"await",
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"break",
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"case",
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"catch",
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"class",
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"const",
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"continue",
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"debugger",
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"default",
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"delete",
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"do",
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"else",
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"enum",
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"eval",
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"export",
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"extends",
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"false",
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"finally",
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"for",
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"function",
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"if",
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"implements",
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"import",
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"in",
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"instanceof",
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"interface",
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"let",
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"new",
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"null",
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"package",
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"private",
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"protected",
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"public",
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"return",
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"static",
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"super",
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"switch",
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"this",
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"throw",
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"true",
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"try",
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"typeof",
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"undefined",
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"var",
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"void",
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"while",
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"with",
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"yield"
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]);
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function wrapInDelimiters(lines, indent = "", delimiters = "{}", withComma = true) {
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if (lines.length === 0) {
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return delimiters;
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}
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const [start, end] = delimiters;
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return `${start}
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` + lines.join(withComma ? ",\n" : "\n") + `
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${indent}${end}`;
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}
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const VALID_IDENTIFIER_RE = /^[$_]?\w*$/;
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function genObjectKey(key) {
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return VALID_IDENTIFIER_RE.test(key) ? key : genString(key);
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}
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function genObjectFromRaw(object, indent = "") {
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return genObjectFromRawEntries(Object.entries(object), indent);
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}
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function genArrayFromRaw(array, indent = "") {
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const newIdent = indent + " ";
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return wrapInDelimiters(array.map((index) => `${newIdent}${genRawValue(index, newIdent)}`), indent, "[]");
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}
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function genObjectFromRawEntries(array, indent = "") {
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const newIdent = indent + " ";
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return wrapInDelimiters(array.map(([key, value]) => `${newIdent}${genObjectKey(key)}: ${genRawValue(value, newIdent)}`), indent, "{}");
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}
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function genRawValue(value, indent = "") {
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if (typeof value === "undefined") {
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return "undefined";
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}
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if (value === null) {
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return "null";
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}
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if (Array.isArray(value)) {
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return genArrayFromRaw(value, indent);
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}
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if (value && typeof value === "object") {
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return genObjectFromRaw(value, indent);
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}
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return value.toString();
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}
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const genTypeObject = (object, indent = "") => {
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const newIndent = indent + " ";
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return wrapInDelimiters(Object.entries(object).map(([key, value]) => {
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const [, k = key, optional = ""] = key.match(/^(.*[^?])(\?)?$/) || [];
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if (typeof value === "string") {
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return `${newIndent}${genObjectKey(k)}${optional}: ${value}`;
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}
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return `${newIndent}${genObjectKey(k)}${optional}: ${genTypeObject(value, newIndent)}`;
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}), indent, "{}", false);
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};
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const genInterface = (name, contents, options = {}) => {
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const result = [
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options.export && "export",
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`interface ${name}`,
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options.extends && `extends ${Array.isArray(options.extends) ? options.extends.join(", ") : options.extends}`,
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contents ? genTypeObject(contents) : "{}"
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].filter(Boolean).join(" ");
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return result;
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};
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const genAugmentation = (specifier, interfaces) => {
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return `declare module ${genString(specifier)} ${wrapInDelimiters(
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Object.entries(interfaces || {}).map(
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([key, entry]) => " " + (Array.isArray(entry) ? genInterface(key, ...entry) : genInterface(key, entry))
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)
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)}`;
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};
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exports.escapeString = escapeString;
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exports.genArrayFromRaw = genArrayFromRaw;
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exports.genAugmentation = genAugmentation;
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exports.genDynamicImport = genDynamicImport;
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exports.genExport = genExport;
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exports.genImport = genImport;
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exports.genInlineTypeImport = genInlineTypeImport;
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exports.genInterface = genInterface;
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exports.genObjectFromRaw = genObjectFromRaw;
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exports.genObjectFromRawEntries = genObjectFromRawEntries;
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exports.genSafeVariableName = genSafeVariableName;
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exports.genString = genString;
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exports.genTypeExport = genTypeExport;
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exports.genTypeImport = genTypeImport;
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exports.genTypeObject = genTypeObject;
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