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vendor/github.com/aws/aws-sdk-go/private/model/api/passes.go

@@ -0,0 +1,306 @@
+// +build codegen
+
+package api
+
+import (
+	"fmt"
+	"regexp"
+	"strings"
+)
+
+// updateTopLevelShapeReferences moves resultWrapper, locationName, and
+// xmlNamespace traits from toplevel shape references to the toplevel
+// shapes for easier code generation
+func (a *API) updateTopLevelShapeReferences() {
+	for _, o := range a.Operations {
+		// these are for REST-XML services
+		if o.InputRef.LocationName != "" {
+			o.InputRef.Shape.LocationName = o.InputRef.LocationName
+		}
+		if o.InputRef.Location != "" {
+			o.InputRef.Shape.Location = o.InputRef.Location
+		}
+		if o.InputRef.Payload != "" {
+			o.InputRef.Shape.Payload = o.InputRef.Payload
+		}
+		if o.InputRef.XMLNamespace.Prefix != "" {
+			o.InputRef.Shape.XMLNamespace.Prefix = o.InputRef.XMLNamespace.Prefix
+		}
+		if o.InputRef.XMLNamespace.URI != "" {
+			o.InputRef.Shape.XMLNamespace.URI = o.InputRef.XMLNamespace.URI
+		}
+	}
+
+}
+
+// writeShapeNames sets each shape's API and shape name values. Binding the
+// shape to its parent API.
+func (a *API) writeShapeNames() {
+	for n, s := range a.Shapes {
+		s.API = a
+		s.ShapeName = n
+	}
+}
+
+func (a *API) resolveReferences() {
+	resolver := referenceResolver{API: a, visited: map[*ShapeRef]bool{}}
+
+	for _, s := range a.Shapes {
+		resolver.resolveShape(s)
+	}
+
+	for _, o := range a.Operations {
+		o.API = a // resolve parent reference
+
+		resolver.resolveReference(&o.InputRef)
+		resolver.resolveReference(&o.OutputRef)
+
+		// Resolve references for errors also
+		for i := range o.ErrorRefs {
+			resolver.resolveReference(&o.ErrorRefs[i])
+			o.ErrorRefs[i].Shape.IsError = true
+		}
+	}
+}
+
+// A referenceResolver provides a way to resolve shape references to
+// shape definitions.
+type referenceResolver struct {
+	*API
+	visited map[*ShapeRef]bool
+}
+
+var jsonvalueShape = &Shape{
+	ShapeName: "JSONValue",
+	Type:      "jsonvalue",
+	ValueRef: ShapeRef{
+		JSONValue: true,
+	},
+}
+
+// resolveReference updates a shape reference to reference the API and
+// its shape definition. All other nested references are also resolved.
+func (r *referenceResolver) resolveReference(ref *ShapeRef) {
+	if ref.ShapeName == "" {
+		return
+	}
+
+	if shape, ok := r.API.Shapes[ref.ShapeName]; ok {
+		if ref.JSONValue {
+			ref.ShapeName = "JSONValue"
+			r.API.Shapes[ref.ShapeName] = jsonvalueShape
+		}
+
+		ref.API = r.API   // resolve reference back to API
+		ref.Shape = shape // resolve shape reference
+
+		if r.visited[ref] {
+			return
+		}
+		r.visited[ref] = true
+
+		shape.refs = append(shape.refs, ref) // register the ref
+
+		// resolve shape's references, if it has any
+		r.resolveShape(shape)
+	}
+}
+
+// resolveShape resolves a shape's Member Key Value, and nested member
+// shape references.
+func (r *referenceResolver) resolveShape(shape *Shape) {
+	r.resolveReference(&shape.MemberRef)
+	r.resolveReference(&shape.KeyRef)
+	r.resolveReference(&shape.ValueRef)
+	for _, m := range shape.MemberRefs {
+		r.resolveReference(m)
+	}
+}
+
+// renameToplevelShapes renames all top level shapes of an API to their
+// exportable variant. The shapes are also updated to include notations
+// if they are Input or Outputs.
+func (a *API) renameToplevelShapes() {
+	for _, v := range a.OperationList() {
+		if v.HasInput() {
+			name := v.ExportedName + "Input"
+			switch {
+			case a.Shapes[name] == nil:
+				if service, ok := shamelist[a.name]; ok {
+					if check, ok := service[v.Name]; ok && check.input {
+						break
+					}
+				}
+				v.InputRef.Shape.Rename(name)
+			}
+		}
+		if v.HasOutput() {
+			name := v.ExportedName + "Output"
+			switch {
+			case a.Shapes[name] == nil:
+				if service, ok := shamelist[a.name]; ok {
+					if check, ok := service[v.Name]; ok && check.output {
+						break
+					}
+				}
+				v.OutputRef.Shape.Rename(name)
+			}
+		}
+		v.InputRef.Payload = a.ExportableName(v.InputRef.Payload)
+		v.OutputRef.Payload = a.ExportableName(v.OutputRef.Payload)
+	}
+}
+
+// fixStutterNames fixes all name struttering based on Go naming conventions.
+// "Stuttering" is when the prefix of a structure or function matches the
+// package name (case insensitive).
+func (a *API) fixStutterNames() {
+	str, end := a.StructName(), ""
+	if len(str) > 1 {
+		l := len(str) - 1
+		str, end = str[0:l], str[l:]
+	}
+	re := regexp.MustCompile(fmt.Sprintf(`\A(?i:%s)%s`, str, end))
+
+	for name, op := range a.Operations {
+		newName := re.ReplaceAllString(name, "")
+		if newName != name {
+			delete(a.Operations, name)
+			a.Operations[newName] = op
+		}
+		op.ExportedName = newName
+	}
+
+	for k, s := range a.Shapes {
+		newName := re.ReplaceAllString(k, "")
+		if newName != s.ShapeName {
+			s.Rename(newName)
+		}
+	}
+}
+
+// renameExportable renames all operation names to be exportable names.
+// All nested Shape names are also updated to the exportable variant.
+func (a *API) renameExportable() {
+	for name, op := range a.Operations {
+		newName := a.ExportableName(name)
+		if newName != name {
+			delete(a.Operations, name)
+			a.Operations[newName] = op
+		}
+		op.ExportedName = newName
+	}
+
+	for k, s := range a.Shapes {
+		// FIXME SNS has lower and uppercased shape names with the same name,
+		// except the lowercased variant is used exclusively for string and
+		// other primitive types. Renaming both would cause a collision.
+		// We work around this by only renaming the structure shapes.
+		if s.Type == "string" {
+			continue
+		}
+
+		for mName, member := range s.MemberRefs {
+			newName := a.ExportableName(mName)
+			if newName != mName {
+				delete(s.MemberRefs, mName)
+				s.MemberRefs[newName] = member
+
+				// also apply locationName trait so we keep the old one
+				// but only if there's no locationName trait on ref or shape
+				if member.LocationName == "" && member.Shape.LocationName == "" {
+					member.LocationName = mName
+				}
+			}
+
+			if newName == "_" {
+				panic("Shape " + s.ShapeName + " uses reserved member name '_'")
+			}
+		}
+
+		newName := a.ExportableName(k)
+		if newName != s.ShapeName {
+			s.Rename(newName)
+		}
+
+		s.Payload = a.ExportableName(s.Payload)
+
+		// fix required trait names
+		for i, n := range s.Required {
+			s.Required[i] = a.ExportableName(n)
+		}
+	}
+
+	for _, s := range a.Shapes {
+		// fix enum names
+		if s.IsEnum() {
+			s.EnumConsts = make([]string, len(s.Enum))
+			for i := range s.Enum {
+				shape := s.ShapeName
+				shape = strings.ToUpper(shape[0:1]) + shape[1:]
+				s.EnumConsts[i] = shape + s.EnumName(i)
+			}
+		}
+	}
+}
+
+// createInputOutputShapes creates toplevel input/output shapes if they
+// have not been defined in the API. This normalizes all APIs to always
+// have an input and output structure in the signature.
+func (a *API) createInputOutputShapes() {
+	for _, op := range a.Operations {
+		if !op.HasInput() {
+			setAsPlacholderShape(&op.InputRef, op.ExportedName+"Input", a)
+		}
+		if !op.HasOutput() {
+			setAsPlacholderShape(&op.OutputRef, op.ExportedName+"Output", a)
+		}
+	}
+}
+
+func setAsPlacholderShape(tgtShapeRef *ShapeRef, name string, a *API) {
+	shape := a.makeIOShape(name)
+	shape.Placeholder = true
+	*tgtShapeRef = ShapeRef{API: a, ShapeName: shape.ShapeName, Shape: shape}
+	shape.refs = append(shape.refs, tgtShapeRef)
+}
+
+// makeIOShape returns a pointer to a new Shape initialized by the name provided.
+func (a *API) makeIOShape(name string) *Shape {
+	shape := &Shape{
+		API: a, ShapeName: name, Type: "structure",
+		MemberRefs: map[string]*ShapeRef{},
+	}
+	a.Shapes[name] = shape
+	return shape
+}
+
+// removeUnusedShapes removes shapes from the API which are not referenced by any
+// other shape in the API.
+func (a *API) removeUnusedShapes() {
+	for n, s := range a.Shapes {
+		if len(s.refs) == 0 {
+			delete(a.Shapes, n)
+		}
+	}
+}
+
+// Represents the service package name to EndpointsID mapping
+var custEndpointsKey = map[string]string{
+	"applicationautoscaling": "application-autoscaling",
+}
+
+// Sents the EndpointsID field of Metadata  with the value of the
+// EndpointPrefix if EndpointsID is not set. Also adds
+// customizations for services if EndpointPrefix is not a valid key.
+func (a *API) setMetadataEndpointsKey() {
+	if len(a.Metadata.EndpointsID) != 0 {
+		return
+	}
+
+	if v, ok := custEndpointsKey[a.PackageName()]; ok {
+		a.Metadata.EndpointsID = v
+	} else {
+		a.Metadata.EndpointsID = a.Metadata.EndpointPrefix
+	}
+}