Enhance bindings for IDE hints

* Follow https://pkg.go.dev/cmd/go#hdr-Generate_Go_files_by_processing_source
  for leading comment
* Add godoc strings for all exposed methods for IDE support
* Copy field godoc strings into generated code as function godoc string
* Remove unused/unnecessary fields from generator.go structures
* Cleanup code regarding template usage

Signed-off-by: Jhon Honce <jhonce@redhat.com>

vendor/github.com/onsi/gomega/gstruct/elements.go

@@ -0,0 +1,231 @@
+// untested sections: 6
+
+package gstruct
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"runtime/debug"
+	"strconv"
+
+	"github.com/onsi/gomega/format"
+	errorsutil "github.com/onsi/gomega/gstruct/errors"
+	"github.com/onsi/gomega/types"
+)
+
+//MatchAllElements succeeds if every element of a slice matches the element matcher it maps to
+//through the id function, and every element matcher is matched.
+//    idFn := func(element interface{}) string {
+//        return fmt.Sprintf("%v", element)
+//    }
+//
+//    Expect([]string{"a", "b"}).To(MatchAllElements(idFn, Elements{
+//        "a": Equal("a"),
+//        "b": Equal("b"),
+//    }))
+func MatchAllElements(identifier Identifier, elements Elements) types.GomegaMatcher {
+	return &ElementsMatcher{
+		Identifier: identifier,
+		Elements:   elements,
+	}
+}
+
+//MatchAllElementsWithIndex succeeds if every element of a slice matches the element matcher it maps to
+//through the id with index function, and every element matcher is matched.
+//    idFn := func(index int, element interface{}) string {
+//        return strconv.Itoa(index)
+//    }
+//
+//    Expect([]string{"a", "b"}).To(MatchAllElements(idFn, Elements{
+//        "0": Equal("a"),
+//        "1": Equal("b"),
+//    }))
+func MatchAllElementsWithIndex(identifier IdentifierWithIndex, elements Elements) types.GomegaMatcher {
+	return &ElementsMatcher{
+		Identifier: identifier,
+		Elements:   elements,
+	}
+}
+
+//MatchElements succeeds if each element of a slice matches the element matcher it maps to
+//through the id function. It can ignore extra elements and/or missing elements.
+//    idFn := func(element interface{}) string {
+//        return fmt.Sprintf("%v", element)
+//    }
+//
+//    Expect([]string{"a", "b", "c"}).To(MatchElements(idFn, IgnoreExtras, Elements{
+//        "a": Equal("a"),
+//        "b": Equal("b"),
+//    }))
+//    Expect([]string{"a", "c"}).To(MatchElements(idFn, IgnoreMissing, Elements{
+//        "a": Equal("a"),
+//        "b": Equal("b"),
+//        "c": Equal("c"),
+//        "d": Equal("d"),
+//    }))
+func MatchElements(identifier Identifier, options Options, elements Elements) types.GomegaMatcher {
+	return &ElementsMatcher{
+		Identifier:      identifier,
+		Elements:        elements,
+		IgnoreExtras:    options&IgnoreExtras != 0,
+		IgnoreMissing:   options&IgnoreMissing != 0,
+		AllowDuplicates: options&AllowDuplicates != 0,
+	}
+}
+
+//MatchElementsWithIndex succeeds if each element of a slice matches the element matcher it maps to
+//through the id with index function. It can ignore extra elements and/or missing elements.
+//    idFn := func(index int, element interface{}) string {
+//        return strconv.Itoa(index)
+//    }
+//
+//    Expect([]string{"a", "b", "c"}).To(MatchElements(idFn, IgnoreExtras, Elements{
+//        "0": Equal("a"),
+//        "1": Equal("b"),
+//    }))
+//    Expect([]string{"a", "c"}).To(MatchElements(idFn, IgnoreMissing, Elements{
+//        "0": Equal("a"),
+//        "1": Equal("b"),
+//        "2": Equal("c"),
+//        "3": Equal("d"),
+//    }))
+func MatchElementsWithIndex(identifier IdentifierWithIndex, options Options, elements Elements) types.GomegaMatcher {
+	return &ElementsMatcher{
+		Identifier:      identifier,
+		Elements:        elements,
+		IgnoreExtras:    options&IgnoreExtras != 0,
+		IgnoreMissing:   options&IgnoreMissing != 0,
+		AllowDuplicates: options&AllowDuplicates != 0,
+	}
+}
+
+// ElementsMatcher is a NestingMatcher that applies custom matchers to each element of a slice mapped
+// by the Identifier function.
+// TODO: Extend this to work with arrays & maps (map the key) as well.
+type ElementsMatcher struct {
+	// Matchers for each element.
+	Elements Elements
+	// Function mapping an element to the string key identifying its matcher.
+	Identifier Identify
+
+	// Whether to ignore extra elements or consider it an error.
+	IgnoreExtras bool
+	// Whether to ignore missing elements or consider it an error.
+	IgnoreMissing bool
+	// Whether to key duplicates when matching IDs.
+	AllowDuplicates bool
+
+	// State.
+	failures []error
+}
+
+// Element ID to matcher.
+type Elements map[string]types.GomegaMatcher
+
+// Function for identifying (mapping) elements.
+type Identifier func(element interface{}) string
+
+// Calls the underlying fucntion with the provided params.
+// Identifier drops the index.
+func (i Identifier) WithIndexAndElement(index int, element interface{}) string {
+	return i(element)
+}
+
+// Uses the index and element to generate an element name
+type IdentifierWithIndex func(index int, element interface{}) string
+
+// Calls the underlying fucntion with the provided params.
+// IdentifierWithIndex uses the index.
+func (i IdentifierWithIndex) WithIndexAndElement(index int, element interface{}) string {
+	return i(index, element)
+}
+
+// Interface for identifing the element
+type Identify interface {
+	WithIndexAndElement(i int, element interface{}) string
+}
+
+// IndexIdentity is a helper function for using an index as
+// the key in the element map
+func IndexIdentity(index int, _ interface{}) string {
+	return strconv.Itoa(index)
+}
+
+func (m *ElementsMatcher) Match(actual interface{}) (success bool, err error) {
+	if reflect.TypeOf(actual).Kind() != reflect.Slice {
+		return false, fmt.Errorf("%v is type %T, expected slice", actual, actual)
+	}
+
+	m.failures = m.matchElements(actual)
+	if len(m.failures) > 0 {
+		return false, nil
+	}
+	return true, nil
+}
+
+func (m *ElementsMatcher) matchElements(actual interface{}) (errs []error) {
+	// Provide more useful error messages in the case of a panic.
+	defer func() {
+		if err := recover(); err != nil {
+			errs = append(errs, fmt.Errorf("panic checking %+v: %v\n%s", actual, err, debug.Stack()))
+		}
+	}()
+
+	val := reflect.ValueOf(actual)
+	elements := map[string]bool{}
+	for i := 0; i < val.Len(); i++ {
+		element := val.Index(i).Interface()
+		id := m.Identifier.WithIndexAndElement(i, element)
+		if elements[id] {
+			if !m.AllowDuplicates {
+				errs = append(errs, fmt.Errorf("found duplicate element ID %s", id))
+				continue
+			}
+		}
+		elements[id] = true
+
+		matcher, expected := m.Elements[id]
+		if !expected {
+			if !m.IgnoreExtras {
+				errs = append(errs, fmt.Errorf("unexpected element %s", id))
+			}
+			continue
+		}
+
+		match, err := matcher.Match(element)
+		if match {
+			continue
+		}
+
+		if err == nil {
+			if nesting, ok := matcher.(errorsutil.NestingMatcher); ok {
+				err = errorsutil.AggregateError(nesting.Failures())
+			} else {
+				err = errors.New(matcher.FailureMessage(element))
+			}
+		}
+		errs = append(errs, errorsutil.Nest(fmt.Sprintf("[%s]", id), err))
+	}
+
+	for id := range m.Elements {
+		if !elements[id] && !m.IgnoreMissing {
+			errs = append(errs, fmt.Errorf("missing expected element %s", id))
+		}
+	}
+
+	return errs
+}
+
+func (m *ElementsMatcher) FailureMessage(actual interface{}) (message string) {
+	failure := errorsutil.AggregateError(m.failures)
+	return format.Message(actual, fmt.Sprintf("to match elements: %v", failure))
+}
+
+func (m *ElementsMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to match elements")
+}
+
+func (m *ElementsMatcher) Failures() []error {
+	return m.failures
+}

vendor/github.com/onsi/gomega/gstruct/errors/nested_types.go

@@ -0,0 +1,72 @@
+package errors
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/onsi/gomega/types"
+)
+
+// A stateful matcher that nests other matchers within it and preserves the error types of the
+// nested matcher failures.
+type NestingMatcher interface {
+	types.GomegaMatcher
+
+	// Returns the failures of nested matchers.
+	Failures() []error
+}
+
+// An error type for labeling errors on deeply nested matchers.
+type NestedError struct {
+	Path string
+	Err  error
+}
+
+func (e *NestedError) Error() string {
+	// Indent Errors.
+	indented := strings.Replace(e.Err.Error(), "\n", "\n\t", -1)
+	return fmt.Sprintf("%s:\n\t%v", e.Path, indented)
+}
+
+// Create a NestedError with the given path.
+// If err is a NestedError, prepend the path to it.
+// If err is an AggregateError, recursively Nest each error.
+func Nest(path string, err error) error {
+	if ag, ok := err.(AggregateError); ok {
+		var errs AggregateError
+		for _, e := range ag {
+			errs = append(errs, Nest(path, e))
+		}
+		return errs
+	}
+	if ne, ok := err.(*NestedError); ok {
+		return &NestedError{
+			Path: path + ne.Path,
+			Err:  ne.Err,
+		}
+	}
+	return &NestedError{
+		Path: path,
+		Err:  err,
+	}
+}
+
+// An error type for treating multiple errors as a single error.
+type AggregateError []error
+
+// Error is part of the error interface.
+func (err AggregateError) Error() string {
+	if len(err) == 0 {
+		// This should never happen, really.
+		return ""
+	}
+	if len(err) == 1 {
+		return err[0].Error()
+	}
+	result := fmt.Sprintf("[%s", err[0].Error())
+	for i := 1; i < len(err); i++ {
+		result += fmt.Sprintf(", %s", err[i].Error())
+	}
+	result += "]"
+	return result
+}

vendor/github.com/onsi/gomega/gstruct/fields.go

@@ -0,0 +1,165 @@
+// untested sections: 6
+
+package gstruct
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"runtime/debug"
+	"strings"
+
+	"github.com/onsi/gomega/format"
+	errorsutil "github.com/onsi/gomega/gstruct/errors"
+	"github.com/onsi/gomega/types"
+)
+
+//MatchAllFields succeeds if every field of a struct matches the field matcher associated with
+//it, and every element matcher is matched.
+//    actual := struct{
+//      A int
+//      B []bool
+//      C string
+//    }{
+//      A: 5,
+//      B: []bool{true, false},
+//      C: "foo",
+//    }
+//
+//    Expect(actual).To(MatchAllFields(Fields{
+//      "A": Equal(5),
+//      "B": ConsistOf(true, false),
+//      "C": Equal("foo"),
+//    }))
+func MatchAllFields(fields Fields) types.GomegaMatcher {
+	return &FieldsMatcher{
+		Fields: fields,
+	}
+}
+
+//MatchFields succeeds if each element of a struct matches the field matcher associated with
+//it. It can ignore extra fields and/or missing fields.
+//    actual := struct{
+//      A int
+//      B []bool
+//      C string
+//    }{
+//      A: 5,
+//      B: []bool{true, false},
+//      C: "foo",
+//    }
+//
+//    Expect(actual).To(MatchFields(IgnoreExtras, Fields{
+//      "A": Equal(5),
+//      "B": ConsistOf(true, false),
+//    }))
+//    Expect(actual).To(MatchFields(IgnoreMissing, Fields{
+//      "A": Equal(5),
+//      "B": ConsistOf(true, false),
+//      "C": Equal("foo"),
+//      "D": Equal("extra"),
+//    }))
+func MatchFields(options Options, fields Fields) types.GomegaMatcher {
+	return &FieldsMatcher{
+		Fields:        fields,
+		IgnoreExtras:  options&IgnoreExtras != 0,
+		IgnoreMissing: options&IgnoreMissing != 0,
+	}
+}
+
+type FieldsMatcher struct {
+	// Matchers for each field.
+	Fields Fields
+
+	// Whether to ignore extra elements or consider it an error.
+	IgnoreExtras bool
+	// Whether to ignore missing elements or consider it an error.
+	IgnoreMissing bool
+
+	// State.
+	failures []error
+}
+
+// Field name to matcher.
+type Fields map[string]types.GomegaMatcher
+
+func (m *FieldsMatcher) Match(actual interface{}) (success bool, err error) {
+	if reflect.TypeOf(actual).Kind() != reflect.Struct {
+		return false, fmt.Errorf("%v is type %T, expected struct", actual, actual)
+	}
+
+	m.failures = m.matchFields(actual)
+	if len(m.failures) > 0 {
+		return false, nil
+	}
+	return true, nil
+}
+
+func (m *FieldsMatcher) matchFields(actual interface{}) (errs []error) {
+	val := reflect.ValueOf(actual)
+	typ := val.Type()
+	fields := map[string]bool{}
+	for i := 0; i < val.NumField(); i++ {
+		fieldName := typ.Field(i).Name
+		fields[fieldName] = true
+
+		err := func() (err error) {
+			// This test relies heavily on reflect, which tends to panic.
+			// Recover here to provide more useful error messages in that case.
+			defer func() {
+				if r := recover(); r != nil {
+					err = fmt.Errorf("panic checking %+v: %v\n%s", actual, r, debug.Stack())
+				}
+			}()
+
+			matcher, expected := m.Fields[fieldName]
+			if !expected {
+				if !m.IgnoreExtras {
+					return fmt.Errorf("unexpected field %s: %+v", fieldName, actual)
+				}
+				return nil
+			}
+
+			field := val.Field(i).Interface()
+
+			match, err := matcher.Match(field)
+			if err != nil {
+				return err
+			} else if !match {
+				if nesting, ok := matcher.(errorsutil.NestingMatcher); ok {
+					return errorsutil.AggregateError(nesting.Failures())
+				}
+				return errors.New(matcher.FailureMessage(field))
+			}
+			return nil
+		}()
+		if err != nil {
+			errs = append(errs, errorsutil.Nest("."+fieldName, err))
+		}
+	}
+
+	for field := range m.Fields {
+		if !fields[field] && !m.IgnoreMissing {
+			errs = append(errs, fmt.Errorf("missing expected field %s", field))
+		}
+	}
+
+	return errs
+}
+
+func (m *FieldsMatcher) FailureMessage(actual interface{}) (message string) {
+	failures := make([]string, len(m.failures))
+	for i := range m.failures {
+		failures[i] = m.failures[i].Error()
+	}
+	return format.Message(reflect.TypeOf(actual).Name(),
+		fmt.Sprintf("to match fields: {\n%v\n}\n", strings.Join(failures, "\n")))
+}
+
+func (m *FieldsMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to match fields")
+}
+
+func (m *FieldsMatcher) Failures() []error {
+	return m.failures
+}

vendor/github.com/onsi/gomega/gstruct/ignore.go

@@ -0,0 +1,39 @@
+// untested sections: 2
+
+package gstruct
+
+import (
+	"github.com/onsi/gomega/types"
+)
+
+//Ignore ignores the actual value and always succeeds.
+//  Expect(nil).To(Ignore())
+//  Expect(true).To(Ignore())
+func Ignore() types.GomegaMatcher {
+	return &IgnoreMatcher{true}
+}
+
+//Reject ignores the actual value and always fails. It can be used in conjunction with IgnoreMissing
+//to catch problematic elements, or to verify tests are running.
+//  Expect(nil).NotTo(Reject())
+//  Expect(true).NotTo(Reject())
+func Reject() types.GomegaMatcher {
+	return &IgnoreMatcher{false}
+}
+
+// A matcher that either always succeeds or always fails.
+type IgnoreMatcher struct {
+	Succeed bool
+}
+
+func (m *IgnoreMatcher) Match(actual interface{}) (bool, error) {
+	return m.Succeed, nil
+}
+
+func (m *IgnoreMatcher) FailureMessage(_ interface{}) (message string) {
+	return "Unconditional failure"
+}
+
+func (m *IgnoreMatcher) NegatedFailureMessage(_ interface{}) (message string) {
+	return "Unconditional success"
+}

vendor/github.com/onsi/gomega/gstruct/keys.go

@@ -0,0 +1,126 @@
+// untested sections: 6
+
+package gstruct
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"runtime/debug"
+	"strings"
+
+	"github.com/onsi/gomega/format"
+	errorsutil "github.com/onsi/gomega/gstruct/errors"
+	"github.com/onsi/gomega/types"
+)
+
+func MatchAllKeys(keys Keys) types.GomegaMatcher {
+	return &KeysMatcher{
+		Keys: keys,
+	}
+}
+
+func MatchKeys(options Options, keys Keys) types.GomegaMatcher {
+	return &KeysMatcher{
+		Keys:          keys,
+		IgnoreExtras:  options&IgnoreExtras != 0,
+		IgnoreMissing: options&IgnoreMissing != 0,
+	}
+}
+
+type KeysMatcher struct {
+	// Matchers for each key.
+	Keys Keys
+
+	// Whether to ignore extra keys or consider it an error.
+	IgnoreExtras bool
+	// Whether to ignore missing keys or consider it an error.
+	IgnoreMissing bool
+
+	// State.
+	failures []error
+}
+
+type Keys map[interface{}]types.GomegaMatcher
+
+func (m *KeysMatcher) Match(actual interface{}) (success bool, err error) {
+	if reflect.TypeOf(actual).Kind() != reflect.Map {
+		return false, fmt.Errorf("%v is type %T, expected map", actual, actual)
+	}
+
+	m.failures = m.matchKeys(actual)
+	if len(m.failures) > 0 {
+		return false, nil
+	}
+	return true, nil
+}
+
+func (m *KeysMatcher) matchKeys(actual interface{}) (errs []error) {
+	actualValue := reflect.ValueOf(actual)
+	keys := map[interface{}]bool{}
+	for _, keyValue := range actualValue.MapKeys() {
+		key := keyValue.Interface()
+		keys[key] = true
+
+		err := func() (err error) {
+			// This test relies heavily on reflect, which tends to panic.
+			// Recover here to provide more useful error messages in that case.
+			defer func() {
+				if r := recover(); r != nil {
+					err = fmt.Errorf("panic checking %+v: %v\n%s", actual, r, debug.Stack())
+				}
+			}()
+
+			matcher, ok := m.Keys[key]
+			if !ok {
+				if !m.IgnoreExtras {
+					return fmt.Errorf("unexpected key %s: %+v", key, actual)
+				}
+				return nil
+			}
+
+			valInterface := actualValue.MapIndex(keyValue).Interface()
+
+			match, err := matcher.Match(valInterface)
+			if err != nil {
+				return err
+			}
+
+			if !match {
+				if nesting, ok := matcher.(errorsutil.NestingMatcher); ok {
+					return errorsutil.AggregateError(nesting.Failures())
+				}
+				return errors.New(matcher.FailureMessage(valInterface))
+			}
+			return nil
+		}()
+		if err != nil {
+			errs = append(errs, errorsutil.Nest(fmt.Sprintf(".%#v", key), err))
+		}
+	}
+
+	for key := range m.Keys {
+		if !keys[key] && !m.IgnoreMissing {
+			errs = append(errs, fmt.Errorf("missing expected key %s", key))
+		}
+	}
+
+	return errs
+}
+
+func (m *KeysMatcher) FailureMessage(actual interface{}) (message string) {
+	failures := make([]string, len(m.failures))
+	for i := range m.failures {
+		failures[i] = m.failures[i].Error()
+	}
+	return format.Message(reflect.TypeOf(actual).Name(),
+		fmt.Sprintf("to match keys: {\n%v\n}\n", strings.Join(failures, "\n")))
+}
+
+func (m *KeysMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to match keys")
+}
+
+func (m *KeysMatcher) Failures() []error {
+	return m.failures
+}

vendor/github.com/onsi/gomega/gstruct/pointer.go

@@ -0,0 +1,58 @@
+// untested sections: 3
+
+package gstruct
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/onsi/gomega/format"
+	"github.com/onsi/gomega/types"
+)
+
+//PointTo applies the given matcher to the value pointed to by actual. It fails if the pointer is
+//nil.
+//  actual := 5
+//  Expect(&actual).To(PointTo(Equal(5)))
+func PointTo(matcher types.GomegaMatcher) types.GomegaMatcher {
+	return &PointerMatcher{
+		Matcher: matcher,
+	}
+}
+
+type PointerMatcher struct {
+	Matcher types.GomegaMatcher
+
+	// Failure message.
+	failure string
+}
+
+func (m *PointerMatcher) Match(actual interface{}) (bool, error) {
+	val := reflect.ValueOf(actual)
+
+	// return error if actual type is not a pointer
+	if val.Kind() != reflect.Ptr {
+		return false, fmt.Errorf("PointerMatcher expects a pointer but we have '%s'", val.Kind())
+	}
+
+	if !val.IsValid() || val.IsNil() {
+		m.failure = format.Message(actual, "not to be <nil>")
+		return false, nil
+	}
+
+	// Forward the value.
+	elem := val.Elem().Interface()
+	match, err := m.Matcher.Match(elem)
+	if !match {
+		m.failure = m.Matcher.FailureMessage(elem)
+	}
+	return match, err
+}
+
+func (m *PointerMatcher) FailureMessage(_ interface{}) (message string) {
+	return m.failure
+}
+
+func (m *PointerMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return m.Matcher.NegatedFailureMessage(actual)
+}

vendor/github.com/onsi/gomega/gstruct/types.go

@@ -0,0 +1,15 @@
+package gstruct
+
+//Options is the type for options passed to some matchers.
+type Options int
+
+const (
+	//IgnoreExtras tells the matcher to ignore extra elements or fields, rather than triggering a failure.
+	IgnoreExtras Options = 1 << iota
+	//IgnoreMissing tells the matcher to ignore missing elements or fields, rather than triggering a failure.
+	IgnoreMissing
+	//AllowDuplicates tells the matcher to permit multiple members of the slice to produce the same ID when
+	//considered by the indentifier function. All members that map to a given key must still match successfully
+	//with the matcher that is provided for that key.
+	AllowDuplicates
+)