Method GetGoObject

value.go:1199–1236

GetGoObject retrieves Go object from JavaScript class instance This method extracts the opaque data stored by the constructor proxy

()

// GetGoObject retrieves Go object from JavaScript class instance
// This method extracts the opaque data stored by the constructor proxy
func (v *Value) GetGoObject() (interface{}, error) {
	if v == nil || v.ctx == nil {
		return nil, errors.New("value context is not available")
	}
	if v.ctx.runtime == nil || !v.ctx.runtime.ensureOwnerAccess() {
		return nil, errOwnerAccessDenied
	}
	if v.ctx.ref == nil || v.ctx.handleStore == nil {
		return nil, errors.New("value context is not available")
	}

	// First check if the value is an object
	if !v.IsObject() {
		return nil, errors.New("value is not an object")
	}

	// Get class ID to ensure we have a class instance
	classID := C.JS_GetClassID(v.ref)

	// Use JS_GetOpaque2 for type-safe retrieval with context validation
	// This corresponds to point.c: s = JS_GetOpaque2(ctx, this_val, js_point_class_id)
	opaque := C.JS_GetOpaque2(v.ctx.ref, v.ref, classID)
	if opaque == nil {
		return nil, errors.New("no instance data found")
	}

	ownerCtx, handleID, ok := resolveClassObjectFromOpaque(v.ctx, opaque)
	if !ok || ownerCtx == nil || ownerCtx.handleStore == nil {
		return nil, errors.New("instance data not found in handle store")
	}

	// Retrieve Go object from resolved HandleStore
	if obj, exists := ownerCtx.handleStore.Load(handleID); exists {
		return obj, nil
	}

	return nil, errors.New("instance data not found in handle store")
}

// =============================================================================
// SPECIALIZED CLASS TYPE CHECKING METHODS