108 lines
2.9 KiB
Go
108 lines
2.9 KiB
Go
// Copyright 2014 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package proptools
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import (
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"reflect"
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"unicode"
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"unicode/utf8"
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)
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func PropertyNameForField(fieldName string) string {
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r, size := utf8.DecodeRuneInString(fieldName)
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propertyName := string(unicode.ToLower(r))
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if len(fieldName) > size {
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propertyName += fieldName[size:]
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}
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return propertyName
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}
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func FieldNameForProperty(propertyName string) string {
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r, size := utf8.DecodeRuneInString(propertyName)
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fieldName := string(unicode.ToUpper(r))
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if len(propertyName) > size {
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fieldName += propertyName[size:]
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}
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return fieldName
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}
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// BoolPtr returns a pointer to a new bool containing the given value.
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func BoolPtr(b bool) *bool {
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return &b
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}
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// Int64Ptr returns a pointer to a new int64 containing the given value.
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func Int64Ptr(i int64) *int64 {
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b := int64(i)
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return &(b)
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}
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// StringPtr returns a pointer to a new string containing the given value.
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func StringPtr(s string) *string {
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return &s
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}
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// BoolDefault takes a pointer to a bool and returns the value pointed to by the pointer if it is non-nil,
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// or def if the pointer is nil.
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func BoolDefault(b *bool, def bool) bool {
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if b != nil {
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return *b
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}
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return def
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}
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// Bool takes a pointer to a bool and returns true iff the pointer is non-nil and points to a true
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// value.
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func Bool(b *bool) bool {
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return BoolDefault(b, false)
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}
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// String takes a pointer to a string and returns the value of the string if the pointer is non-nil,
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// or def if the pointer is nil.
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func StringDefault(s *string, def string) string {
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if s != nil {
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return *s
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}
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return def
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}
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// String takes a pointer to a string and returns the value of the string if the pointer is non-nil,
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// or an empty string.
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func String(s *string) string {
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return StringDefault(s, "")
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}
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// IntDefault takes a pointer to an int64 and returns the value pointed to by the pointer cast to int
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// if it is non-nil, or def if the pointer is nil.
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func IntDefault(i *int64, def int) int {
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if i != nil {
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return int(*i)
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}
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return def
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}
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// Int takes a pointer to an int64 and returns the value pointed to by the pointer cast to int
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// if it is non-nil, or 0 if the pointer is nil.
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func Int(i *int64) int {
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return IntDefault(i, 0)
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}
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func isStruct(t reflect.Type) bool {
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return t.Kind() == reflect.Struct
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}
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func isStructPtr(t reflect.Type) bool {
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return t.Kind() == reflect.Ptr && t.Elem().Kind() == reflect.Struct
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}
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