better type transpiling
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parent
38038d710b
commit
ff84493fac
54
index.js
54
index.js
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@ -8,6 +8,51 @@ const outPath = path.resolve(__dirname, './out/');
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let classes = {};
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let tsToLuaTypes = {
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undefined: 'nil',
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unknown: 'any',
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}
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function transpileType(type) {
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type = type.trim();
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if (type.startsWith('(') && type.endsWith(')')) type = type.slice(1, -1);
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if (tsToLuaTypes[type]) {
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return tsToLuaTypes[type];
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}
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if (type.endsWith('[]')) {
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return transpileType(type.slice(0, -2)) + '[]';
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}
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if (type.includes('|')) {
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return type.split('|').map(t => transpileType(t)).join(' | ');
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}
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if (type.startsWith('Record<')) {
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return 'table<' + transpileType(type.split(',')[0].replace('Record<','')) + ', ' + transpileType(type.split(',')[1].replace('>','')) + '>';
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}
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if (type.startsWith('LuaTable<')) {
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return 'table<' + transpileType(type.split(',')[0].replace('LuaTable<','')) + ', ' + transpileType(type.split(',')[1].replace('>','')) + '>';
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}
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let match;
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if (match = /\((.*?)\) ?=> ?(.*)/.exec(type)) { // functions
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return `fun(${match[1] !== '' ? match[1].split(',').map(c => c.split(':')[0] + ':' + transpileType(c.split(':')[1])).join(',') : ''}): ${transpileType(match[2])}`;
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}
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if (match = /(?:Array)|(?:Map)<(.*?)>/.exec(type)) {
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return transpileType(match[1]) + '[]';
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}
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if (match = /(.*?)<(.*?)>/.exec(type)) { // any other weird type we just discard
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return transpileType(match[2]);
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}
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return type;
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}
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function transpile(parsed, indent, prefix) {
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let global = false;
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indent = indent || 0;
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@ -29,11 +74,11 @@ function transpile(parsed, indent, prefix) {
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}
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classes[d.name] = contents;
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return `---@class ${d.name}${n}${contents.filter(e => e[0] === 'const').map(c => `---@field public ${c[1].name} ${c[1].type}${n}`).join('')}${global ? '' : '__class_'}${d.name} = {}${n}${contents.filter(e => e[0] !== 'const').map(c => transpile(c, indent, `${global ? '' : '__class_'}${d.name}`)).join(n)}\n`;
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return `---@class ${d.name}${n}${contents.filter(e => e[0] === 'const').map(c => `---@field public ${c[1].name} ${transpileType(c[1].type)}${n}`).join('')}${global ? '' : '__class_'}${d.name} = {}${n}${contents.filter(e => e[0] !== 'const').map(c => transpile(c, indent, `${global ? '' : '__class_'}${d.name}`)).join(n)}\n`;
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case 'function':
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return `${d.arguments.map(p => `---@param ${p.name.replace('?', '')} ${p.type}${n}`).join('')}---@return ${d.returns}${n}function ${prefix ? prefix + ':' : ''}${d.name}(${d.arguments.map(a => a.name.replace('?', '')).join(', ')}) end`;
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return `${d.arguments.map(p => `---@param ${p.name.replace('?', '')} ${transpileType(p.type)}${n}`).join('')}---@return ${transpileType(d.returns)}${n}function ${prefix ? prefix + ':' : ''}${d.name}(${d.arguments.map(a => a.name.replace('?', '')).join(', ')}) end`;
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case 'const':
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return `---@type ${d.type}${n}${prefix ? prefix + '.' : ''}${d.name} = nil`;
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return `---@type ${transpileType(d.type)}${n}${prefix ? prefix + '.' : ''}${d.name} = nil`;
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case 'enum':
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return `${prefix ? prefix + '.' : ''}${d.name} = {${n} ${d.contents.map(c => `${c.name} = ${c.value}`).join(`,${n} `)}${n}}`;
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}
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@ -61,6 +106,7 @@ function parse(code) {
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// sanitize stuff
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code = removeComments(code);
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let match;
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const elements = [];
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// look for interfaces
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@ -83,7 +129,7 @@ function parse(code) {
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// look for functions
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let functionFreeCode = code;
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const functions = /(function)?\s(\w+)\s*\(([^;]*)\)(\s*:\s*([\w\[\]]+))?/g; // wow this sucks
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const functions = /(function)?\s(\w+)\s*\(([^;]*)\)(\s*:\s*([\w\[\]\s|<>,]+))?/g; // wow this sucks
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while ((match = functions.exec(code)) !== null) {
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functionFreeCode = functionFreeCode.replace(match[0], '');
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let arguments = match[3].split(',').map(s => {
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