diff options
Diffstat (limited to 'src/pkg/exp/sql/driver')
| -rw-r--r-- | src/pkg/exp/sql/driver/driver.go | 46 | ||||
| -rw-r--r-- | src/pkg/exp/sql/driver/types.go | 11 |
2 files changed, 27 insertions, 30 deletions
diff --git a/src/pkg/exp/sql/driver/driver.go b/src/pkg/exp/sql/driver/driver.go index 7508b19fa1..52714e817a 100644 --- a/src/pkg/exp/sql/driver/driver.go +++ b/src/pkg/exp/sql/driver/driver.go @@ -19,9 +19,7 @@ // package driver -import ( - "os" -) +import "errors" // Driver is the interface that must be implemented by a database // driver. @@ -31,7 +29,7 @@ type Driver interface { // // The returned connection is only used by one goroutine at a // time. - Open(name string) (Conn, os.Error) + Open(name string) (Conn, error) } // Execer is an optional interface that may be implemented by a Driver @@ -48,7 +46,7 @@ type Driver interface { // // All arguments are of a subset type as defined in the package docs. type Execer interface { - Exec(query string, args []interface{}) (Result, os.Error) + Exec(query string, args []interface{}) (Result, error) } // Conn is a connection to a database. It is not used concurrently @@ -57,16 +55,16 @@ type Execer interface { // Conn is assumed to be stateful. type Conn interface { // Prepare returns a prepared statement, bound to this connection. - Prepare(query string) (Stmt, os.Error) + Prepare(query string) (Stmt, error) // Close invalidates and potentially stops any current // prepared statements and transactions, marking this // connection as no longer in use. The driver may cache or // close its underlying connection to its database. - Close() os.Error + Close() error // Begin starts and returns a new transaction. - Begin() (Tx, os.Error) + Begin() (Tx, error) } // Result is the result of a query execution. @@ -74,18 +72,18 @@ type Result interface { // LastInsertId returns the database's auto-generated ID // after, for example, an INSERT into a table with primary // key. - LastInsertId() (int64, os.Error) + LastInsertId() (int64, error) // RowsAffected returns the number of rows affected by the // query. - RowsAffected() (int64, os.Error) + RowsAffected() (int64, error) } // Stmt is a prepared statement. It is bound to a Conn and not // used by multiple goroutines concurrently. type Stmt interface { // Close closes the statement. - Close() os.Error + Close() error // NumInput returns the number of placeholder parameters. NumInput() int @@ -93,11 +91,11 @@ type Stmt interface { // Exec executes a query that doesn't return rows, such // as an INSERT or UPDATE. The args are all of a subset // type as defined above. - Exec(args []interface{}) (Result, os.Error) + Exec(args []interface{}) (Result, error) // Exec executes a query that may return rows, such as a // SELECT. The args of all of a subset type as defined above. - Query(args []interface{}) (Rows, os.Error) + Query(args []interface{}) (Rows, error) } // ColumnConverter may be optionally implemented by Stmt if the @@ -120,7 +118,7 @@ type Rows interface { Columns() []string // Close closes the rows iterator. - Close() os.Error + Close() error // Next is called to populate the next row of data into // the provided slice. The provided slice will be the same @@ -129,13 +127,13 @@ type Rows interface { // The dest slice may be populated with only with values // of subset types defined above, but excluding string. // All string values must be converted to []byte. - Next(dest []interface{}) os.Error + Next(dest []interface{}) error } // Tx is a transaction. type Tx interface { - Commit() os.Error - Rollback() os.Error + Commit() error + Rollback() error } // RowsAffected implements Result for an INSERT or UPDATE operation @@ -144,11 +142,11 @@ type RowsAffected int64 var _ Result = RowsAffected(0) -func (RowsAffected) LastInsertId() (int64, os.Error) { - return 0, os.NewError("no LastInsertId available") +func (RowsAffected) LastInsertId() (int64, error) { + return 0, errors.New("no LastInsertId available") } -func (v RowsAffected) RowsAffected() (int64, os.Error) { +func (v RowsAffected) RowsAffected() (int64, error) { return int64(v), nil } @@ -160,10 +158,10 @@ type ddlSuccess struct{} var _ Result = ddlSuccess{} -func (ddlSuccess) LastInsertId() (int64, os.Error) { - return 0, os.NewError("no LastInsertId available after DDL statement") +func (ddlSuccess) LastInsertId() (int64, error) { + return 0, errors.New("no LastInsertId available after DDL statement") } -func (ddlSuccess) RowsAffected() (int64, os.Error) { - return 0, os.NewError("no RowsAffected available after DDL statement") +func (ddlSuccess) RowsAffected() (int64, error) { + return 0, errors.New("no RowsAffected available after DDL statement") } diff --git a/src/pkg/exp/sql/driver/types.go b/src/pkg/exp/sql/driver/types.go index 5521d5389c..9faf32f671 100644 --- a/src/pkg/exp/sql/driver/types.go +++ b/src/pkg/exp/sql/driver/types.go @@ -6,7 +6,6 @@ package driver import ( "fmt" - "os" "reflect" "strconv" ) @@ -14,7 +13,7 @@ import ( // ValueConverter is the interface providing the ConvertValue method. type ValueConverter interface { // ConvertValue converts a value to a restricted subset type. - ConvertValue(v interface{}) (interface{}, os.Error) + ConvertValue(v interface{}) (interface{}, error) } // Bool is a ValueConverter that converts input values to bools. @@ -27,7 +26,7 @@ type boolType struct{} var _ ValueConverter = boolType{} -func (boolType) ConvertValue(v interface{}) (interface{}, os.Error) { +func (boolType) ConvertValue(v interface{}) (interface{}, error) { return nil, fmt.Errorf("TODO(bradfitz): bool conversions") } @@ -39,7 +38,7 @@ type int32Type struct{} var _ ValueConverter = int32Type{} -func (int32Type) ConvertValue(v interface{}) (interface{}, os.Error) { +func (int32Type) ConvertValue(v interface{}) (interface{}, error) { rv := reflect.ValueOf(v) switch rv.Kind() { case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: @@ -72,7 +71,7 @@ var String stringType type stringType struct{} -func (stringType) ConvertValue(v interface{}) (interface{}, os.Error) { +func (stringType) ConvertValue(v interface{}) (interface{}, error) { switch v.(type) { case string, []byte: return v, nil @@ -137,7 +136,7 @@ type defaultConverter struct{} var _ ValueConverter = defaultConverter{} -func (defaultConverter) ConvertValue(v interface{}) (interface{}, os.Error) { +func (defaultConverter) ConvertValue(v interface{}) (interface{}, error) { if IsParameterSubsetType(v) { return v, nil } |