diff options
Diffstat (limited to 'src/mongo/gotools/src/github.com/mongodb/mongo-tools/vendor/github.com/smartystreets/assertions/internal/oglematchers/identical_to.go')
-rw-r--r-- | src/mongo/gotools/src/github.com/mongodb/mongo-tools/vendor/github.com/smartystreets/assertions/internal/oglematchers/identical_to.go | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/src/mongo/gotools/src/github.com/mongodb/mongo-tools/vendor/github.com/smartystreets/assertions/internal/oglematchers/identical_to.go b/src/mongo/gotools/src/github.com/mongodb/mongo-tools/vendor/github.com/smartystreets/assertions/internal/oglematchers/identical_to.go deleted file mode 100644 index ae6460ed966..00000000000 --- a/src/mongo/gotools/src/github.com/mongodb/mongo-tools/vendor/github.com/smartystreets/assertions/internal/oglematchers/identical_to.go +++ /dev/null @@ -1,134 +0,0 @@ -// Copyright 2012 Aaron Jacobs. All Rights Reserved. -// Author: aaronjjacobs@gmail.com (Aaron Jacobs) -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package oglematchers - -import ( - "errors" - "fmt" - "reflect" -) - -// Is the type comparable according to the definition here? -// -// http://weekly.golang.org/doc/go_spec.html#Comparison_operators -// -func isComparable(t reflect.Type) bool { - switch t.Kind() { - case reflect.Array: - return isComparable(t.Elem()) - - case reflect.Struct: - for i := 0; i < t.NumField(); i++ { - if !isComparable(t.Field(i).Type) { - return false - } - } - - return true - - case reflect.Slice, reflect.Map, reflect.Func: - return false - } - - return true -} - -// Should the supplied type be allowed as an argument to IdenticalTo? -func isLegalForIdenticalTo(t reflect.Type) (bool, error) { - // Allow the zero type. - if t == nil { - return true, nil - } - - // Reference types are always okay; we compare pointers. - switch t.Kind() { - case reflect.Slice, reflect.Map, reflect.Func, reflect.Chan: - return true, nil - } - - // Reject other non-comparable types. - if !isComparable(t) { - return false, errors.New(fmt.Sprintf("%v is not comparable", t)) - } - - return true, nil -} - -// IdenticalTo(x) returns a matcher that matches values v with type identical -// to x such that: -// -// 1. If v and x are of a reference type (slice, map, function, channel), then -// they are either both nil or are references to the same object. -// -// 2. Otherwise, if v and x are not of a reference type but have a valid type, -// then v == x. -// -// If v and x are both the invalid type (which results from the predeclared nil -// value, or from nil interface variables), then the matcher is satisfied. -// -// This function will panic if x is of a value type that is not comparable. For -// example, x cannot be an array of functions. -func IdenticalTo(x interface{}) Matcher { - t := reflect.TypeOf(x) - - // Reject illegal arguments. - if ok, err := isLegalForIdenticalTo(t); !ok { - panic("IdenticalTo: " + err.Error()) - } - - return &identicalToMatcher{x} -} - -type identicalToMatcher struct { - x interface{} -} - -func (m *identicalToMatcher) Description() string { - t := reflect.TypeOf(m.x) - return fmt.Sprintf("identical to <%v> %v", t, m.x) -} - -func (m *identicalToMatcher) Matches(c interface{}) error { - // Make sure the candidate's type is correct. - t := reflect.TypeOf(m.x) - if ct := reflect.TypeOf(c); t != ct { - return NewFatalError(fmt.Sprintf("which is of type %v", ct)) - } - - // Special case: two values of the invalid type are always identical. - if t == nil { - return nil - } - - // Handle reference types. - switch t.Kind() { - case reflect.Slice, reflect.Map, reflect.Func, reflect.Chan: - xv := reflect.ValueOf(m.x) - cv := reflect.ValueOf(c) - if xv.Pointer() == cv.Pointer() { - return nil - } - - return errors.New("which is not an identical reference") - } - - // Are the values equal? - if m.x == c { - return nil - } - - return errors.New("") -} |