error: move NewErrorf to error.go

Author: zchee

error.go

@@ -4,6 +4,10 @@
 
 package jsonrpc2
 
+import (
+	"fmt"
+)
+
 type ErrorCode int64
 
 const (
@@ -42,3 +46,12 @@ func (e *Error) Error() string {
 	}
 	return e.Message
 }
+
+// NewErrorf builds a Error struct for the suppied message and code.
+// If args is not empty, message and args will be passed to Sprintf.
+func NewErrorf(code ErrorCode, format string, args ...interface{}) *Error {
+	return &Error{
+		Code:    code,
+		Message: fmt.Sprintf(format, args...),
+	}
+}

jsonrpc2.go

@@ -43,23 +43,14 @@ type Conn struct {
 type Handler func(context.Context, *Conn, *Request)
 
 // Canceler is an option you can pass to NewConn which is invoked for
-// cancelled outgoing requests.
+// canceled outgoing requests.
 // The request will have the ID filled in, which can be used to propagate the
 // cancel to the other process if needed.
 // It is okay to use the connection to send notifications, but the context will
-// be in the cancelled state, so you must do it with the background context
+// be in the canceled state, so you must do it with the background context
 // instead.
 type Canceler func(context.Context, *Conn, *Request)
 
-// NewErrorf builds a Error struct for the suppied message and code.
-// If args is not empty, message and args will be passed to Sprintf.
-func NewErrorf(code ErrorCode, format string, args ...interface{}) *Error {
-	return &Error{
-		Code:    code,
-		Message: fmt.Sprintf(format, args...),
-	}
-}
-
 // NewConn creates a new connection object that reads and writes messages from
 // the supplied stream and dispatches incoming messages to the supplied handler.
 func NewConn(ctx context.Context, s Stream, options ...interface{}) *Conn {