Method registerFunc

web/src/runtime.ts:1087–1110

* Register function to be global function in tvm runtime. * @param name The name of the function. * @param func Function to be registered. * @param override Whether overwrite function in existing registry.

(
    name: string,
    func: PackedFunc | Function,
    override = false
  )

   * @param override Whether overwrite function in existing registry.
   */
  registerFunc(
    name: string,
    func: PackedFunc | Function,
    override = false
  ): void {
    this.withNewScope(() => {
      const autoAttachToScope = true;
      // packed func can be released once it is registered
      const packedFunc = this.toPackedFuncInternal(func, autoAttachToScope);
      const ioverride = override ? 1 : 0;

      const stack = this.lib.getOrAllocCallStack();
      const nameOffset = stack.allocByteArrayForString(name);
      stack.commitToWasmMemory();
      this.lib.checkCall(
        (this.lib.exports.TVMFFIFunctionSetGlobal as ctypes.FTVMFFIFunctionSetGlobal)(
          stack.ptrFromOffset(nameOffset),
          packedFunc._tvmPackedCell.getHandle(),
          ioverride
        )
      );
      this.lib.recycleCallStack(stack);
    });
  }

  /**
   * Get global PackedFunc from the runtime.