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isaac-lua-definitions
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better type transpiling

This commit is contained in:
Jill 2021-11-03 11:24:05 +03:00
parent 38038d710b
commit ff84493fac
1 changed files with 50 additions and 4 deletions
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54
index.js
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@ -8,6 +8,51 @@ const outPath = path.resolve(__dirname, './out/');
let classes = {};
let tsToLuaTypes = {
undefined: 'nil',
unknown: 'any',
}
function transpileType(type) {
type = type.trim();
if (type.startsWith('(') && type.endsWith(')')) type = type.slice(1, -1);
if (tsToLuaTypes[type]) {
return tsToLuaTypes[type];
}
if (type.endsWith('[]')) {
return transpileType(type.slice(0, -2)) + '[]';
}
if (type.includes('|')) {
return type.split('|').map(t => transpileType(t)).join(' | ');
}
if (type.startsWith('Record<')) {
return 'table<' + transpileType(type.split(',')[0].replace('Record<','')) + ', ' + transpileType(type.split(',')[1].replace('>','')) + '>';
}
if (type.startsWith('LuaTable<')) {
return 'table<' + transpileType(type.split(',')[0].replace('LuaTable<','')) + ', ' + transpileType(type.split(',')[1].replace('>','')) + '>';
}
let match;
if (match = /\((.*?)\) ?=> ?(.*)/.exec(type)) { // functions
return `fun(${match[1] !== '' ? match[1].split(',').map(c => c.split(':')[0] + ':' + transpileType(c.split(':')[1])).join(',') : ''}): ${transpileType(match[2])}`;
}
if (match = /(?:Array)|(?:Map)<(.*?)>/.exec(type)) {
return transpileType(match[1]) + '[]';
}
if (match = /(.*?)<(.*?)>/.exec(type)) { // any other weird type we just discard
return transpileType(match[2]);
}
return type;
}
function transpile(parsed, indent, prefix) {
let global = false;
indent = indent || 0;
@ -29,11 +74,11 @@ function transpile(parsed, indent, prefix) {
}
classes[d.name] = contents;
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`;
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`;
case 'function':
return `${d.arguments.map(p => `---@param ${p.name.replace('?', '')} ${p.type}${n}`).join('')}---@return ${d.returns}${n}function ${prefix ? prefix + ':' : ''}${d.name}(${d.arguments.map(a => a.name.replace('?', '')).join(', ')}) end`;
return `${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`;
case 'const':
return `---@type ${d.type}${n}${prefix ? prefix + '.' : ''}${d.name} = nil`;
return `---@type ${transpileType(d.type)}${n}${prefix ? prefix + '.' : ''}${d.name} = nil`;
case 'enum':
return `${prefix ? prefix + '.' : ''}${d.name} = {${n} ${d.contents.map(c => `${c.name} = ${c.value}`).join(`,${n} `)}${n}}`;
}
@ -61,6 +106,7 @@ function parse(code) {
// sanitize stuff
code = removeComments(code);
let match;
const elements = [];
// look for interfaces
@ -83,7 +129,7 @@ function parse(code) {
// look for functions
let functionFreeCode = code;
const functions = /(function)?\s(\w+)\s*\(([^;]*)\)(\s*:\s*([\w\[\]]+))?/g; // wow this sucks
const functions = /(function)?\s(\w+)\s*\(([^;]*)\)(\s*:\s*([\w\[\]\s|<>,]+))?/g; // wow this sucks
while ((match = functions.exec(code)) !== null) {
functionFreeCode = functionFreeCode.replace(match[0], '');
let arguments = match[3].split(',').map(s => {