Method gc_alloc

g2all/700/module/mem.js:230–246

(size)

  // the backer is an implementation detail. don't use it to mutate the
  // memory
  gc_alloc(size) {
    if (!isInteger(size)) {
      throw TypeError("size not a integer");
    }
    if (size < 0) {
      throw RangeError("size is negative");
    }

    const fastLimit = 1000;
    size = ((size + 7) & ~7) >> 3;
    if (size > fastLimit) {
      throw RangeError("size is too large");
    }

    const backer = new Float64Array(size);
    return [mem.addrof(backer).readp(view_m_vector), backer];
  }

  fakeobj(addr) {
    const values = lohi_from_one(addr);