quickjs-tart

quickjs-based runtime for wallet-core logic
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prelude.js (928B)

      1 // The prelude defines basic functionality
      2 // that is expected by the Taler wallet core JavaScript,
      3 // but not provided by quickjs or the "tart" module directly.
      4 
      5 import * as os from "os";
      6 import * as tart from "tart";
      7 
      8 class TextEncoder {
      9   encode(str) {
     10     return new Uint8Array(tart.encodeUtf8(str));
     11   }
     12 }
     13 
     14 class TextDecoder {
     15   decode(bytes) {
     16     return tart.decodeUtf8(bytes);
     17   }
     18 }
     19 
     20 globalThis.TextEncoder = TextEncoder;
     21 globalThis.TextDecoder = TextDecoder;
     22 globalThis.setTimeout = (f, t) => os.setTimeout(f, t);
     23 globalThis.clearTimeout = (h) => os.clearTimeout(h);
     24 globalThis.setImmediate = (f) => os.setTimeout(f, 0);
     25 
     26 // FIXME: log to the right streams!
     27 console.info = (...args) => { console.log(...args); };
     28 console.warn = (...args) => { console.log(...args); };
     29 console.error = (...args) => { console.log(...args); };
     30 console.assert = (b) => { if (!b) throw Error("assertion failed") };
     31 
     32 globalThis._tart = tart;