mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-14 20:37:55 -05:00
e1e1baa1bd
* Make throwOnError=true the new default
* Handle JS errors as part of the RPC request/response flow
* Return a new Result type with .Err on it
This enables constructs on the form:
```handlebars
{{ with transform.ToMath "c = \\foo{a^2 + b^2}" }}
{{ with .Err }}
{{ warnf "error: %s" . }}
{{ else }}
{{ . }}
{{ end }}
{{ end }}
```
Note that the new `Result` type behaves like `template.HTML` (or a string if needed) when printed, but it will panic if in a error state.
Closes #12748
146 lines
3.3 KiB
Go
146 lines
3.3 KiB
Go
// Copyright 2019 The Hugo Authors. All rights reserved.
|
|
//
|
|
// 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 types contains types shared between packages in Hugo.
|
|
package types
|
|
|
|
import (
|
|
"fmt"
|
|
"reflect"
|
|
"sync/atomic"
|
|
|
|
"github.com/spf13/cast"
|
|
)
|
|
|
|
// RLocker represents the read locks in sync.RWMutex.
|
|
type RLocker interface {
|
|
RLock()
|
|
RUnlock()
|
|
}
|
|
|
|
// KeyValue is a interface{} tuple.
|
|
type KeyValue struct {
|
|
Key any
|
|
Value any
|
|
}
|
|
|
|
// KeyValueStr is a string tuple.
|
|
type KeyValueStr struct {
|
|
Key string
|
|
Value string
|
|
}
|
|
|
|
// KeyValues holds an key and a slice of values.
|
|
type KeyValues struct {
|
|
Key any
|
|
Values []any
|
|
}
|
|
|
|
// KeyString returns the key as a string, an empty string if conversion fails.
|
|
func (k KeyValues) KeyString() string {
|
|
return cast.ToString(k.Key)
|
|
}
|
|
|
|
func (k KeyValues) String() string {
|
|
return fmt.Sprintf("%v: %v", k.Key, k.Values)
|
|
}
|
|
|
|
// NewKeyValuesStrings takes a given key and slice of values and returns a new
|
|
// KeyValues struct.
|
|
func NewKeyValuesStrings(key string, values ...string) KeyValues {
|
|
iv := make([]any, len(values))
|
|
for i := 0; i < len(values); i++ {
|
|
iv[i] = values[i]
|
|
}
|
|
return KeyValues{Key: key, Values: iv}
|
|
}
|
|
|
|
// Zeroer, as implemented by time.Time, will be used by the truth template
|
|
// funcs in Hugo (if, with, not, and, or).
|
|
type Zeroer interface {
|
|
IsZero() bool
|
|
}
|
|
|
|
// IsNil reports whether v is nil.
|
|
func IsNil(v any) bool {
|
|
if v == nil {
|
|
return true
|
|
}
|
|
|
|
value := reflect.ValueOf(v)
|
|
switch value.Kind() {
|
|
case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
|
|
return value.IsNil()
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// DevMarker is a marker interface for types that should only be used during
|
|
// development.
|
|
type DevMarker interface {
|
|
DevOnly()
|
|
}
|
|
|
|
// Unwrapper is implemented by types that can unwrap themselves.
|
|
type Unwrapper interface {
|
|
// Unwrapv is for internal use only.
|
|
// It got its slightly odd name to prevent collisions with user types.
|
|
Unwrapv() any
|
|
}
|
|
|
|
// Unwrap returns the underlying value of v if it implements Unwrapper, otherwise v is returned.
|
|
func Unwrapv(v any) any {
|
|
if u, ok := v.(Unwrapper); ok {
|
|
return u.Unwrapv()
|
|
}
|
|
return v
|
|
}
|
|
|
|
// LowHigh is typically used to represent a slice boundary.
|
|
type LowHigh struct {
|
|
Low int
|
|
High int
|
|
}
|
|
|
|
// This is only used for debugging purposes.
|
|
var InvocationCounter atomic.Int64
|
|
|
|
// NewTrue returns a pointer to b.
|
|
func NewBool(b bool) *bool {
|
|
return &b
|
|
}
|
|
|
|
// PrintableValueProvider is implemented by types that can provide a printable value.
|
|
type PrintableValueProvider interface {
|
|
PrintableValue() any
|
|
}
|
|
|
|
var _ PrintableValueProvider = Result[any]{}
|
|
|
|
// Result is a generic result type.
|
|
type Result[T any] struct {
|
|
// The result value.
|
|
Value T
|
|
|
|
// The error value.
|
|
Err error
|
|
}
|
|
|
|
// PrintableValue returns the value or panics if there is an error.
|
|
func (r Result[T]) PrintableValue() any {
|
|
if r.Err != nil {
|
|
panic(r.Err)
|
|
}
|
|
return r.Value
|
|
}
|