js/baba-yaga/debug-when.js


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// debug-when.js - Debug when expression with Result types

import { createLexer } from './src/core/lexer.js';
import { createParser } from './src/core/parser.js';
import { createInterpreter } from './src/core/interpreter.js';

const code = `
  jsObj : io.callJS "JSON.parse" ["{\\"x\\": 42}"];
  debug.inspect jsObj;
  
  result : when jsObj is
    Ok obj then obj
    Err msg then "error";
  
  debug.inspect result;
  result;
`;

const lexer = createLexer(code);
const tokens = lexer.allTokens();
const parser = createParser(tokens);
const ast = parser.parse();

const host = {
  jsBridgeConfig: {
    allowedFunctions: new Set(['JSON.parse', 'JSON.stringify', 'Math.abs'])
  },
  io: {
    out: (...args) => console.log('[OUT]', ...args),
    debug: (...args) => console.log('[DEBUG]', ...args)
  }
};

const interpreter = createInterpreter(ast, host);
interpreter.interpret();

const result = interpreter.scope.get('result');
console.log('Final result:', result);