Revert "Revert RESTJSON and RESTXML changes of SDK v1.11.0 (aws#1551)"

This reverts commit 6a946b2.

Fixes the aws#1550 bug with RESTXML not correctly marshaling Amazon Route53 APIs

models/protocol_tests/generate.go

@@ -383,6 +383,7 @@ func generateTestSuite(filename string) string {
 		svcPrefix := inout + "Service" + strconv.Itoa(i+1)
 		suite.API.Metadata.ServiceAbbreviation = svcPrefix + "ProtocolTest"
 		suite.API.Operations = map[string]*api.Operation{}
+
 		for idx, c := range suite.Cases {
 			c.Given.ExportedName = svcPrefix + "TestCaseOperation" + strconv.Itoa(idx+1)
 			suite.API.Operations[c.Given.ExportedName] = c.Given
@@ -395,6 +396,9 @@ func generateTestSuite(filename string) string {
 		suite.API.Setup()
 		suite.API.Metadata.EndpointPrefix = suite.API.PackageName()
 
+		// TODO until generated marshalers are all supported
+		suite.API.EnableSelectGeneratedMarshalers()
+
 		// Sort in order for deterministic test generation
 		names := make([]string, 0, len(suite.API.Shapes))
 		for n := range suite.API.Shapes {

private/model/api/api.go

@@ -46,6 +46,10 @@ type API struct {
 	// Set to true to not generate struct field accessors
 	NoGenStructFieldAccessors bool
 
+	// Set to true to not generate (un)marshalers
+	NoGenMarshalers   bool
+	NoGenUnmarshalers bool
+
 	SvcClientImportPath string
 
 	initialized bool
@@ -272,6 +276,9 @@ func (a *API) APIGoCode() string {
 		a.imports["github.com/aws/aws-sdk-go/private/protocol/"+a.ProtocolPackage()] = true
 		a.imports["github.com/aws/aws-sdk-go/private/protocol"] = true
 	}
+	if !a.NoGenMarshalers || !a.NoGenUnmarshalers {
+		a.imports["github.com/aws/aws-sdk-go/private/protocol"] = true
+	}
 
 	for _, op := range a.Operations {
 		if op.AuthType == "none" {

private/model/api/customization_passes.go

@@ -47,6 +47,21 @@ func (a *API) customizationPasses() {
 	if fn := svcCustomizations[a.PackageName()]; fn != nil {
 		fn(a)
 	}
+
+	// TODO until generated marshalers are all supported
+	a.EnableSelectGeneratedMarshalers()
+}
+
+func (a *API) EnableSelectGeneratedMarshalers() {
+	// Selectivily enable generated marshalers as available
+	a.NoGenMarshalers = true
+	a.NoGenUnmarshalers = true
+
+	// Enable generated marshalers
+	switch a.Metadata.Protocol {
+	case "rest-xml", "rest-json":
+		a.NoGenMarshalers = false
+	}
 }
 
 // s3Customizations customizes the API generation to replace values specific to S3.

private/model/api/passes.go

@@ -61,6 +61,15 @@ func (a *API) resolveReferences() {
 			o.ErrorRefs[i].Shape.IsError = true
 		}
 	}
+
+	for _, s := range a.Shapes {
+		switch s.Type {
+		case "list":
+			s.MemberRef.Shape.UsedInList = true
+		case "map":
+			s.ValueRef.Shape.UsedInMap = true
+		}
+	}
 }
 
 // A referenceResolver provides a way to resolve shape references to

private/model/api/shape.go

@@ -78,6 +78,9 @@ type Shape struct {
 
 	OrigShapeName string `json:"-"`
 
+	UsedInMap  bool
+	UsedInList bool
+
 	// Defines if the shape is a placeholder and should not be used directly
 	Placeholder bool
 
@@ -185,10 +188,18 @@ func (s *Shape) GoStructValueType(name string, ref *ShapeRef) string {
 	return v
 }
 
+func (s *Shape) IsRefPayload(name string) bool {
+	return s.Payload == name
+}
+
+func (s *Shape) IsRefPayloadReader(name string, ref *ShapeRef) bool {
+	return (ref.Streaming || ref.Shape.Streaming) && s.IsRefPayload(name)
+}
+
 // GoStructType returns the type of a struct field based on the API
 // model definition.
 func (s *Shape) GoStructType(name string, ref *ShapeRef) string {
-	if (ref.Streaming || ref.Shape.Streaming) && s.Payload == name {
+	if s.IsRefPayloadReader(name, ref) {
 		rtype := "io.ReadSeeker"
 		if strings.HasSuffix(s.ShapeName, "Output") {
 			rtype = "io.ReadCloser"
@@ -513,7 +524,9 @@ func (s *Shape) NestedShape() *Shape {
 }
 
 var structShapeTmpl = template.Must(template.New("StructShape").Funcs(template.FuncMap{
-	"GetCrosslinkURL": GetCrosslinkURL,
+	"GetCrosslinkURL":      GetCrosslinkURL,
+	"MarshalShapeGoCode":   MarshalShapeGoCode,
+	"UnmarshalShapeGoCode": UnmarshalShapeGoCode,
 }).Parse(`
 {{ .Docstring }}
 {{ if ne $.OrigShapeName "" -}}
@@ -597,6 +610,13 @@ func (s *{{ $builderShapeName }}) get{{ $name }}() (v {{ $context.GoStructValueT
 
 {{ end }}
 {{ end }}
+
+{{ if not $.API.NoGenMarshalers -}}
+{{ MarshalShapeGoCode $ }}
+{{- end }}
+{{ if not $.API.NoGenUnmarshalers -}}
+{{ UnmarshalShapeGoCode $ }}
+{{- end }}
 `))
 
 var enumShapeTmpl = template.Must(template.New("EnumShape").Parse(`