Golang system.Type类代码示例

func printStructDefinition(ctx context.Context, env *envctx.Env, g *builder.Builder, typ *system.Type) error {
	if typ.Description != "" {
		g.Println("// ", typ.Description)
	}
	g.Println("type ", system.GoName(typ.Id.Name), " struct {")
	{
		if !typ.Basic {
			g.Println("*", g.SprintRef("kego.io/system", system.GoName("object")))
		}

		embedsSortable := system.SortableReferences(typ.Embed)
		sort.Sort(embedsSortable)
		embeds := []*system.Reference(embedsSortable)
		for _, embed := range embeds {
			g.Println("*", builder.Reference(embed.Package, system.GoName(embed.Name), env.Path, g.Imports.Add))
		}

		for _, nf := range typ.SortedFields() {
			b := nf.Rule.(system.ObjectInterface).GetObject(nil)
			if b.Description != "" {
				g.Println("// ", b.Description)
			}
			descriptor, err := builder.FieldTypeDefinition(ctx, nf.Name, nf.Rule, env.Path, g.Imports.Add)
			if err != nil {
				return kerr.Wrap("GDSKJDEKQD", err)
			}
			g.Println(system.GoName(nf.Name), " ", descriptor)
		}
	}
	g.Println("}")
	return nil
}

func (n *Node) setType(ctx context.Context, t *system.Type) error {
	if t == nil {
		n.Type = nil
		n.JsonType = system.J_NULL
		n.UnderlyingRule = nil
		n.UnderlyingInnerType = nil
		return nil
	}
	if t.Interface {
		return kerr.New("VHOSYBMDQL", "Can't set type to an interface - must be concrete type.")
	}
	n.Type = t
	n.JsonType = t.NativeJsonType(ctx)

	if t.Alias != nil {
		rw := system.WrapRule(ctx, t.Alias)
		n.UnderlyingRule = rw

		uit := rw.InnerType(ctx)
		for uit.Alias != nil {
			uit = system.WrapRule(ctx, uit.Alias).InnerType(ctx)
		}
		n.UnderlyingInnerType = uit
	} else {
		n.UnderlyingRule = system.WrapEmptyRule(ctx, t)
		n.UnderlyingInnerType = t
	}

	return nil
}

func printValueMethod(ctx context.Context, env *envctx.Env, g *builder.Builder, typ *system.Type) error {
	name := system.GoName(typ.Id.Name)
	gotype, err := typ.NativeValueGolangType()
	if err != nil {
		return kerr.Wrap("LUHQRVBQRT", err)
	}
	g.Println("func (o *", name, ") Value() ", gotype, "{")
	{
		g.Println("return ", gotype, "(*o)")
	}
	g.Println("}")
	return nil
}

func printInterfaceDefinition(ctx context.Context, env *envctx.Env, g *builder.Builder, typ *system.Type) {

	g.Println("type ", system.GoInterfaceName(typ.Id.Name), " interface {")
	{
		g.Println("Get",
			system.GoName(typ.Id.Name),
			"(ctx ",
			builder.Reference("context", "Context", env.Path, g.Imports.Add),
			") ",
			typ.PassedAsPointerString(ctx),
			system.GoName(typ.Id.Name))
	}
	g.Println("}")
}

func printInterfaceImplementation(ctx context.Context, env *envctx.Env, g *builder.Builder, typ *system.Type) {

	g.Println("func (o ",
		typ.PassedAsPointerString(ctx),
		system.GoName(typ.Id.Name),
		") Get",
		system.GoName(typ.Id.Name),
		"(ctx ",
		builder.Reference("context", "Context", env.Path, g.Imports.Add),
		") ",
		typ.PassedAsPointerString(ctx),
		system.GoName(typ.Id.Name),
		" {")
	{
		g.Println("return o")
	}
	g.Println("}")
}

func printInterfaceUnpacker(ctx context.Context, env *envctx.Env, g *builder.Builder, typ *system.Type) {
	// if type kind is native, also accept bare json native
	// if type kind is array, also accept bare json array
	typeName := system.GoName(typ.Id.Name)
	var interfaceName string
	if typ.Interface {
		interfaceName = system.GoName(typ.Id.Name)
	} else {
		interfaceName = system.GoInterfaceName(typ.Id.Name)
	}
	fmtPkg := g.Imports.Add("fmt")
	g.Println("func Unpack", interfaceName, "(ctx ", g.SprintRef("context", "Context"), ", in ", g.SprintRef("kego.io/system", "Packed"), ") (", interfaceName, ", error) {")
	{
		g.Println("switch in.Type() {")
		{
			g.Println("case ", g.SprintRef("kego.io/system", "J_MAP"), ":")
			{
				unknownTypeFunc := g.SprintFunctionCall("kego.io/system", "UnpackUnknownType", "ctx", "in", "true", strconv.Quote(typ.Id.Package), strconv.Quote(typ.Id.Name))
				g.Println("i, err := ", unknownTypeFunc)
				g.Println("if err != nil {")
				{
					g.Println("return nil, err")
				}
				g.Println("}")
				g.Println("ob, ok := i.(", interfaceName, ")")
				g.Println("if !ok {")
				{
					g.Println("return nil, ", fmtPkg, `.Errorf("%T does not implement `, interfaceName, `", i)`)
				}
				g.Println("}")
				g.Println("return ob, nil")
			}
			switch typ.NativeJsonType(ctx) {
			// We don't include J_MAP in here.
			case system.J_STRING, system.J_NUMBER, system.J_BOOL, system.J_ARRAY:
				switch typ.NativeJsonType(ctx) {
				case system.J_STRING:
					g.Println("case ", g.SprintRef("kego.io/system", "J_STRING"), ":")
				case system.J_NUMBER:
					g.Println("case ", g.SprintRef("kego.io/system", "J_NUMBER"), ":")
				case system.J_BOOL:
					g.Println("case ", g.SprintRef("kego.io/system", "J_BOOL"), ":")
				case system.J_ARRAY:
					g.Println("case ", g.SprintRef("kego.io/system", "J_ARRAY"), ":")
				}
				g.Println("ob := new(", typeName, ")")
				g.Println("if err := ob.Unpack(ctx, in, false); err != nil {")
				{
					g.Println("return nil, err")
				}
				g.Println("}")
				g.Println("return ob, nil")
			}
			g.Println("default:")
			{
				g.Println("return nil, ", fmtPkg, `.Errorf("Unsupported json type %s when unpacking into `, interfaceName, `.", in.Type())`)
			}
		}
		g.Println("}")
	}
	g.Println("}")
}

func printUnpacker(ctx context.Context, env *envctx.Env, g *builder.Builder, typ *system.Type) error {
	name := system.GoName(typ.Id.Name)
	fmtPkg := g.Imports.Add("fmt")
	g.Println("func (v *", name, ") Unpack(ctx ", g.SprintRef("context", "Context"), ", in ", g.SprintRef("kego.io/system", "Packed"), ", iface bool) error {")
	{

		g.Println("if in == nil || in.Type() == ", g.SprintRef("kego.io/system", "J_NULL"), " {")
		{
			g.Println("return nil")
		}
		g.Println("}")

		kind, _ := typ.Kind(ctx)
		switch kind {
		case system.KindStruct:
			structType := typ
			if typ.Alias != nil {
				structType = system.WrapRule(ctx, typ.Alias).Parent
			}
			for _, embedRef := range structType.AllEmbeds() {
				embedType, ok := system.GetTypeFromCache(ctx, embedRef.Package, embedRef.Name)
				if !ok {
					return kerr.New("IOEEVJCDPU", "Type %s not found", embedRef.String())
				}
				embedName := system.GoName(embedRef.Name)
				embedTypeName := builder.Reference(embedType.Id.Package, system.GoName(embedType.Id.Name), env.Path, g.Imports.Add)
				g.Println("if v.", embedName, " == nil {")
				{
					g.Println("v.", embedName, " = new(", embedTypeName, ")")
				}
				g.Println("}")
				g.Println("if err := v.", embedName, ".Unpack(ctx, in, false); err != nil {")
				{
					g.Println("return err")
				}
				g.Println("}")
				if embedRef.Package == "kego.io/system" && embedRef.Name == "object" {
					g.Println("if err := v.Object.InitializeType(", strconv.Quote(typ.Id.Package), ", ", strconv.Quote(typ.Id.Name), "); err != nil {")
					{
						g.Println("return err")
					}
					g.Println("}")
				}
			}
			for _, f := range structType.SortedFields() {
				g.Println("if field, ok := in.Map()[", strconv.Quote(f.Name), "]; ok && field.Type() != ", g.SprintRef("kego.io/system", "J_NULL"), " {")
				{
					in := "field"
					out := "ob0"
					depth := 0
					if err := printUnpackCode(ctx, env, g, in, out, depth, f.Rule); err != nil {
						return kerr.Wrap("QLARKEBDBJ", err)
					}
					g.Println("v.", system.GoName(f.Name), " = ", out)
				}
				if dr, ok := f.Rule.(system.DefaultRule); ok && dr.GetDefault() != nil {
					g.Println("} else {")
					{
						b, err := json.Marshal(dr.GetDefault())
						if err != nil {
							return kerr.Wrap("DLOUEHXVJF", err)
						}
						in := g.SprintFunctionCall("kego.io/system", "Pack", string(b))
						out := "ob0"
						depth := 0
						if err := printUnpackCode(ctx, env, g, in, out, depth, f.Rule); err != nil {
							return kerr.Wrap("UOWRFWSTNT", err)
						}
						g.Println("v.", system.GoName(f.Name), " = ", out)
					}
					g.Println("}")
				} else {
					g.Println("}")
				}
			}
		case system.KindValue:
			g.Println("if in.Type() == ", g.SprintRef("kego.io/system", "J_MAP"), " {")
			{
				g.Println("in = in.Map()[\"value\"]")
			}
			g.Println("}")
			switch typ.NativeJsonType(ctx) {
			case system.J_BOOL:
				g.Println("if in.Type() != ", g.SprintRef("kego.io/system", "J_BOOL"), " {")
				{
					g.Println("return ", fmtPkg, `.Errorf("Invalid type %s while unpacking a bool.", in.Type())`)
				}
				g.Println("}")
				g.Println("*v = ", name, "(in.Bool())")
			case system.J_STRING:
				g.Println("if in.Type() != ", g.SprintRef("kego.io/system", "J_STRING"), " {")
				{
					g.Println("return ", fmtPkg, `.Errorf("Invalid type %s while unpacking a string.", in.Type())`)
				}
				g.Println("}")
				g.Println("*v = ", name, "(in.String())")
			case system.J_NUMBER:
				g.Println("if in.Type() != ", g.SprintRef("kego.io/system", "J_NUMBER"), " {")
				{
					g.Println("return ", fmtPkg, `.Errorf("Invalid type %s while unpacking a number.", in.Type())`)
//.........这里部分代码省略.........

func printRepacker(ctx context.Context, env *envctx.Env, g *builder.Builder, typ *system.Type) error {
	name := system.GoName(typ.Id.Name)
	context_Context := g.SprintRef("context", "Context")
	system_JsonType := g.SprintRef("kego.io/system", "JsonType")
	ptr := typ.PassedAsPointerString(ctx)
	v := "v"
	if typ.PassedAsPointer(ctx) {
		v = "(*v)"
	}
	g.Println("func (v ", ptr, name, ") Repack(ctx ", context_Context, ") (data interface{}, typePackage string, typeName string, jsonType ", system_JsonType, ", err error) {")
	{
		g.Println("if v == nil {")
		{
			system_J_NULL := g.SprintRef("kego.io/system", "J_NULL")
			g.Println("return nil, ", strconv.Quote(typ.Id.Package), ", ", strconv.Quote(typ.Id.Name), ", ", system_J_NULL, ", nil")
		}
		g.Println("}")

		jtype := typ.NativeJsonType(ctx)
		var jsonType string
		switch jtype {
		case system.J_NUMBER:
			jsonType = g.SprintRef("kego.io/system", "J_NUMBER")
		case system.J_STRING:
			jsonType = g.SprintRef("kego.io/system", "J_STRING")
		case system.J_BOOL:
			jsonType = g.SprintRef("kego.io/system", "J_BOOL")
		case system.J_MAP:
			jsonType = g.SprintRef("kego.io/system", "J_MAP")
		case system.J_OBJECT:
			jsonType = g.SprintRef("kego.io/system", "J_OBJECT")
		case system.J_ARRAY:
			jsonType = g.SprintRef("kego.io/system", "J_ARRAY")
		case system.J_NULL:
			jsonType = g.SprintRef("kego.io/system", "J_NULL")
		}

		kind, _ := typ.Kind(ctx)
		switch kind {
		case system.KindStruct:
			g.Println("m := map[string]interface{}{}")
			structType := typ
			if typ.Alias != nil {
				structType = system.WrapRule(ctx, typ.Alias).Parent
			}
			for _, embedRef := range structType.AllEmbeds() {
				embedName := system.GoName(embedRef.Name)
				g.Println("if v.", embedName, " != nil {")
				{
					g.Println("ob, _, _, _, err := v.", embedName, ".Repack(ctx)")
					g.Println("if err != nil {")
					{
						g.Println(`return nil, "", "", "", err`)
					}
					g.Println("}")
					g.Println("for key, val := range ob.(map[string]interface{}) {")
					{
						g.Println("m[key] = val")
					}
					g.Println("}")
				}
				g.Println("}")
			}
			for _, f := range structType.SortedFields() {
				fieldRule := system.WrapRule(ctx, f.Rule)
				fieldName := system.GoName(f.Name)
				fieldType := fieldRule.Parent
				kind, alias := fieldRule.Kind(ctx)
				switch {
				case kind == system.KindStruct || alias:
					g.Println("if v.", fieldName, " != nil {")
					{
						if err := printRepackCode(ctx, env, g, "v."+fieldName, "ob0", 0, f.Rule, true); err != nil {
							return kerr.Wrap("WSARHJIFHS", err)
						}
						g.Println("m[", strconv.Quote(f.Name), "] = ", "ob0")
					}
					g.Println("}")
				case kind == system.KindValue:
					switch fieldType.NativeJsonType(ctx) {
					case system.J_STRING:
						g.Println("if v.", fieldName, " != \"\" {")
					case system.J_NUMBER:
						g.Println("if v.", fieldName, " != 0.0 {")
					case system.J_BOOL:
						g.Println("if v.", fieldName, " != false {")
					}
					{
						if err := printRepackCode(ctx, env, g, "v."+fieldName, "ob0", 0, f.Rule, true); err != nil {
							return kerr.Wrap("YYDYVIMXPM", err)
						}
						g.Println("m[", strconv.Quote(f.Name), "] = ", "ob0")
					}
					g.Println("}")
				case kind == system.KindArray ||
					kind == system.KindMap ||
					kind == system.KindInterface:
					g.Println("if v.", fieldName, " != nil {")
					{
						if err := printRepackCode(ctx, env, g, "v."+fieldName, "ob0", 0, f.Rule, true); err != nil {
//.........这里部分代码省略.........