Function attributeName

codegen/service/convert.go:845–893

attributeName computes the name of the attribute for the given field name and object that must contain the matching attribute.

(obj *expr.Object, name string)

// attributeName computes the name of the attribute for the given field name and
// object that must contain the matching attribute.
func attributeName(obj *expr.Object, name string) (string, string) {
	if obj == nil {
		return name, ""
	}
	// first look for a "struct:field:external" meta
	for _, nat := range *obj {
		if m := nat.Attribute.Meta["struct:field:external"]; len(m) > 0 {
			if m[0] == name {
				return nat.Name, name
			}
		}
	}
	for _, nat := range *obj { // Deprecated syntax. Only present for backward compatibility.
		if m := nat.Attribute.Meta["struct.field.external"]; len(m) > 0 {
			if m[0] == name {
				return nat.Name, name
			}
		}
	}
	// next look for an exact match
	for _, nat := range *obj {
		if nat.Name == name {
			return name, ""
		}
	}
	// next try to lower case first letter
	ln := strings.ToLower(name[0:1]) + name[1:]
	for _, nat := range *obj {
		if nat.Name == ln {
			return ln, name
		}
	}
	// next look for a lower camel case without acronym
	lcn := codegen.CamelCase(name, false, false)
	for _, nat := range *obj {
		if nat.Name == lcn {
			return lcn, name
		}
	}
	// finally look for a snake case representation
	sn := codegen.SnakeCase(name)
	for _, nat := range *obj {
		if nat.Name == sn {
			return sn, name
		}
	}
	// no match, return field name
	return name, ""
}

// isPrimitive is true if the given kind matches a goa primitive type.
func isPrimitive(t reflect.Type) bool {