Method emit_leb_u

deps/v8/test/mjsunit/wasm/wasm-module-builder.js:1161–1173

(val, max_len)

  }

  emit_leb_u(val, max_len) {
    this.ensure_space(max_len);
    for (let i = 0; i < max_len; ++i) {
      let v = val & 0xff;
      val = val >>> 7;
      if (val == 0) {
        this.buffer[this.length++] = v;
        return;
      }
      this.buffer[this.length++] = v | 0x80;
    }
    throw new Error('Leb value exceeds maximum length of ' + max_len);
  }

  emit_u32v(val) {
    this.emit_leb_u(val, kMaxVarInt32Size);