Function makeStruct

hero/struct.go:58–137

(structPtr interface{}, c *Container, partyParamsCount int)

}

func makeStruct(structPtr interface{}, c *Container, partyParamsCount int) *Struct {
	v := valueOf(structPtr)
	typ := v.Type()
	if typ.Kind() != reflect.Ptr || indirectType(typ).Kind() != reflect.Struct {
		panic("binder: struct: should be a pointer to a struct value")
	}

	isSingleton := isMarkedAsSingleton(structPtr)

	disablePayloadAutoBinding := c.DisablePayloadAutoBinding
	enableStructDependents := c.EnableStructDependents
	disableStructDynamicBindings := c.DisableStructDynamicBindings
	if isSingleton {
		disablePayloadAutoBinding = true
		enableStructDependents = false
		disableStructDynamicBindings = true
	}

	// get struct's fields bindings.
	bindings := getBindingsForStruct(v, c.Dependencies, c.MarkExportedFieldsAsRequired, disablePayloadAutoBinding, enableStructDependents, c.DependencyMatcher, partyParamsCount, c.Sorter)

	// length bindings of 0, means that it has no fields or all mapped deps are static.
	// If static then Struct.Acquire will return the same "value" instance, otherwise it will create a new one.
	singleton := true
	elem := v.Elem()

	// fmt.Printf("Service: %s, Bindings(%d):\n", typ, len(bindings))
	for _, b := range bindings {
		// fmt.Printf("* " + b.String() + "\n")
		if b.Dependency.Static {
			// Fill now.
			input, err := b.Dependency.Handle(nil, b.Input)
			if err != nil {
				if err == ErrSeeOther {
					continue
				}

				panic(err)
			}

			elem.FieldByIndex(b.Input.StructFieldIndex).Set(input)
		} else if !b.Dependency.Static {
			if disableStructDynamicBindings {
				panic(fmt.Sprintf("binder: DisableStructDynamicBindings setting is set to true: dynamic binding found: %s", b.String()))
			}

			singleton = false
		}
	}

	if isSingleton && !singleton {
		panic(fmt.Sprintf("binder: Singleton setting is set to true but struct has dynamic bindings: %s", typ))
	}

	s := &Struct{
		ptrValue:    v,
		ptrType:     typ,
		elementType: elem.Type(),