add error code for components

errors/gerror/gerror.go

@@ -49,7 +49,7 @@ func New(text string) error {
 	return &Error{
 		stack: callers(),
 		text:  text,
-		code:  -1,
+		code:  CodeNil,
 	}
 }
 
@@ -58,7 +58,7 @@ func Newf(format string, args ...interface{}) error {
 	return &Error{
 		stack: callers(),
 		text:  fmt.Sprintf(format, args...),
-		code:  -1,
+		code:  CodeNil,
 	}
 }
 
@@ -68,7 +68,7 @@ func NewSkip(skip int, text string) error {
 	return &Error{
 		stack: callers(skip),
 		text:  text,
-		code:  -1,
+		code:  CodeNil,
 	}
 }
 
@@ -78,7 +78,7 @@ func NewSkipf(skip int, format string, args ...interface{}) error {
 	return &Error{
 		stack: callers(skip),
 		text:  fmt.Sprintf(format, args...),
-		code:  -1,
+		code:  CodeNil,
 	}
 }
 

errors/gerror/gerror_code.go

@@ -0,0 +1,25 @@
+// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package gerror
+
+// Reserved internal error code of framework: code < 1000.
+
+const (
+	CodeNil                  = -1 // No error code specified.
+	CodeOk                   = 0  // It is OK without error.
+	CodeInternalError        = 50 // An error occurred internally.
+	CodeValidationFailed     = 51 // Data validation failed.
+	CodeDbOperationError     = 52 // Database operation error.
+	CodeInvalidParameter     = 53 // The given parameter for current operation is invalid.
+	CodeMissingParameter     = 54 // Parameter for current operation is missing.
+	CodeInvalidOperation     = 55 // The function cannot be used like this.
+	CodeInvalidConfiguration = 56 // The configuration is invalid for current operation.
+	CodeMissingConfiguration = 57 // The configuration is missing for current operation.
+	CodeNotImplemented       = 58 // The operation is not implemented yet.
+	CodeNotSupported         = 59 // The operation is not supported yet.
+	CodeOperationFailed      = 60 // I tried, but I cannot give you what you want.
+)

errors/gerror/gerror_error.go

@@ -179,6 +179,9 @@ func (err *Error) MarshalJSON() ([]byte, error) {
 
 // formatSubStack formats the stack for error.
 func formatSubStack(st stack, buffer *bytes.Buffer) {
+	if st == nil {
+		return
+	}
 	index := 1
 	space := "  "
 	for _, p := range st {

errors/gerror/gerror_option.go

@@ -0,0 +1,28 @@
+// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package gerror
+
+// Option is option for creating error.
+type Option struct {
+	Error error  // Wrapped error.
+	Stack bool   // Record stack information into error.
+	Text  string // Error text, which is created by New* functions.
+	Code  int    // Error code if necessary.
+}
+
+// NewOption creates and returns an error with Option.
+func NewOption(option Option) error {
+	err := &Error{
+		error: option.Error,
+		text:  option.Text,
+		code:  option.Code,
+	}
+	if option.Stack {
+		err.stack = callers()
+	}
+	return err
+}