Tidy code.

datamodel/low/v3/components.go

@@ -38,6 +38,11 @@ type Components struct {
 	*low.Reference
 }
 
+type componentBuildResult[T any] struct {
+	key   low.KeyReference[string]
+	value low.ValueReference[T]
+}
+
 // GetExtensions returns all Components extensions and satisfies the low.HasExtensions interface.
 func (co *Components) GetExtensions() map[low.KeyReference[string]]low.ValueReference[any] {
 	return co.Extensions
@@ -210,22 +215,18 @@ func (co *Components) Build(root *yaml.Node, idx *index.SpecIndex) error {
 	return reterr
 }
 
-type componentBuildResult[T any] struct {
-	k low.KeyReference[string]
-	v low.ValueReference[T]
-}
-
 // extractComponentValues converts all the YAML nodes of a component type to
 // low level model.
 // Process each node in parallel.
-func extractComponentValues[T low.Buildable[N], N any](label string, root *yaml.Node, idx *index.SpecIndex) (retval low.NodeReference[map[low.KeyReference[string]]low.ValueReference[T]], _ error) {
+func extractComponentValues[T low.Buildable[N], N any](label string, root *yaml.Node, idx *index.SpecIndex) (low.NodeReference[map[low.KeyReference[string]]low.ValueReference[T]], error) {
+	var emptyResult low.NodeReference[map[low.KeyReference[string]]low.ValueReference[T]]
 	_, nodeLabel, nodeValue := utils.FindKeyNodeFullTop(label, root.Content)
 	if nodeValue == nil {
-		return retval, nil
+		return emptyResult, nil
 	}
 	componentValues := make(map[low.KeyReference[string]]low.ValueReference[T])
 	if utils.IsNodeArray(nodeValue) {
-		return retval, fmt.Errorf("node is array, cannot be used in components: line %d, column %d", nodeValue.Line, nodeValue.Column)
+		return emptyResult, fmt.Errorf("node is array, cannot be used in components: line %d, column %d", nodeValue.Line, nodeValue.Column)
 	}
 
 	type inputValue struct {
@@ -270,14 +271,14 @@ func extractComponentValues[T low.Buildable[N], N any](label string, root *yaml.
 	// Collect output.
 	go func() {
 		for result := range out {
-			componentValues[result.k] = result.v
+			componentValues[result.key] = result.value
 		}
 		cancel()
 		wg.Done()
 	}()
 
 	// Translate.
-	translateFunc := func(value inputValue) (retval componentBuildResult[T], _ error) {
+	translateFunc := func(value inputValue) (componentBuildResult[T], error) {
 		var n T = new(N)
 		currentLabel := value.currentLabel
 		node := value.node
@@ -290,21 +291,21 @@ func extractComponentValues[T low.Buildable[N], N any](label string, root *yaml.
 			node, err = low.LocateRefNode(node, idx)
 		}
 		if err != nil {
-			return retval, err
+			return componentBuildResult[T]{}, err
 		}
 
 		// build.
 		_ = low.BuildModel(node, n)
 		err = n.Build(node, idx)
 		if err != nil {
-			return retval, err
+			return componentBuildResult[T]{}, err
 		}
 		return componentBuildResult[T]{
-			k: low.KeyReference[string]{
+			key: low.KeyReference[string]{
 				KeyNode: currentLabel,
 				Value:   currentLabel.Value,
 			},
-			v: low.ValueReference[T]{
+			value: low.ValueReference[T]{
 				Value:     n,
 				ValueNode: node,
 			},
@@ -313,7 +314,7 @@ func extractComponentValues[T low.Buildable[N], N any](label string, root *yaml.
 	err := datamodel.TranslatePipeline[inputValue, componentBuildResult[T]](in, out, translateFunc)
 	wg.Wait()
 	if err != nil {
-		return retval, err
+		return emptyResult, err
 	}
 
 	results := low.NodeReference[map[low.KeyReference[string]]low.ValueReference[T]]{

datamodel/low/v3/paths.go

@@ -68,17 +68,17 @@ func (p *Paths) Build(root *yaml.Node, idx *index.SpecIndex) error {
 	p.Extensions = low.ExtractExtensions(root)
 
 	// Translate YAML nodes to pathsMap using `TranslatePipeline`.
-	type pathBuildResult struct {
+	type buildResult struct {
 		k low.KeyReference[string]
 		v low.ValueReference[*PathItem]
 	}
-	type nodeItem struct {
+	type inputValue struct {
 		currentNode *yaml.Node
 		pathNode    *yaml.Node
 	}
 	pathsMap := make(map[low.KeyReference[string]]low.ValueReference[*PathItem])
-	in := make(chan nodeItem)
-	out := make(chan pathBuildResult)
+	in := make(chan inputValue)
+	out := make(chan buildResult)
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 	var wg sync.WaitGroup
@@ -107,7 +107,7 @@ func (p *Paths) Build(root *yaml.Node, idx *index.SpecIndex) error {
 			}
 
 			select {
-			case in <- nodeItem{
+			case in <- inputValue{
 				currentNode: currentNode,
 				pathNode:    pathNode,
 			}:
@@ -136,8 +136,8 @@ func (p *Paths) Build(root *yaml.Node, idx *index.SpecIndex) error {
 		}
 	}()
 
-	err := datamodel.TranslatePipeline[nodeItem, pathBuildResult](in, out,
-		func(value nodeItem) (pathBuildResult, error) {
+	err := datamodel.TranslatePipeline[inputValue, buildResult](in, out,
+		func(value inputValue) (buildResult, error) {
 			pNode := value.pathNode
 			cNode := value.currentNode
 
@@ -153,11 +153,11 @@ func (p *Paths) Build(root *yaml.Node, idx *index.SpecIndex) error {
 
 					if err != nil {
 						if !idx.AllowCircularReferenceResolving() {
-							return pathBuildResult{}, fmt.Errorf("path item build failed: %s", err.Error())
+							return buildResult{}, fmt.Errorf("path item build failed: %s", err.Error())
 						}
 					}
 				} else {
-					return pathBuildResult{}, fmt.Errorf("path item build failed: cannot find reference: %s at line %d, col %d",
+					return buildResult{}, fmt.Errorf("path item build failed: cannot find reference: %s at line %d, col %d",
 						pNode.Content[1].Value, pNode.Content[1].Line, pNode.Content[1].Column)
 				}
 			}
@@ -166,10 +166,10 @@ func (p *Paths) Build(root *yaml.Node, idx *index.SpecIndex) error {
 			_ = low.BuildModel(pNode, path)
 			err := path.Build(pNode, idx)
 			if err != nil {
-				return pathBuildResult{}, err
+				return buildResult{}, err
 			}
 
-			return pathBuildResult{
+			return buildResult{
 				k: low.KeyReference[string]{
 					Value:   cNode.Value,
 					KeyNode: cNode,