diff options
Diffstat (limited to 'dependencies/pkg/mod/github.com/go-sql-driver/mysql@v1.8.1/fields.go')
-rw-r--r-- | dependencies/pkg/mod/github.com/go-sql-driver/mysql@v1.8.1/fields.go | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/github.com/go-sql-driver/mysql@v1.8.1/fields.go b/dependencies/pkg/mod/github.com/go-sql-driver/mysql@v1.8.1/fields.go new file mode 100644 index 0000000..2860842 --- /dev/null +++ b/dependencies/pkg/mod/github.com/go-sql-driver/mysql@v1.8.1/fields.go @@ -0,0 +1,222 @@ +// Go MySQL Driver - A MySQL-Driver for Go's database/sql package +// +// Copyright 2017 The Go-MySQL-Driver Authors. All rights reserved. +// +// This Source Code Form is subject to the terms of the Mozilla Public +// License, v. 2.0. If a copy of the MPL was not distributed with this file, +// You can obtain one at http://mozilla.org/MPL/2.0/. + +package mysql + +import ( + "database/sql" + "reflect" +) + +func (mf *mysqlField) typeDatabaseName() string { + switch mf.fieldType { + case fieldTypeBit: + return "BIT" + case fieldTypeBLOB: + if mf.charSet != binaryCollationID { + return "TEXT" + } + return "BLOB" + case fieldTypeDate: + return "DATE" + case fieldTypeDateTime: + return "DATETIME" + case fieldTypeDecimal: + return "DECIMAL" + case fieldTypeDouble: + return "DOUBLE" + case fieldTypeEnum: + return "ENUM" + case fieldTypeFloat: + return "FLOAT" + case fieldTypeGeometry: + return "GEOMETRY" + case fieldTypeInt24: + if mf.flags&flagUnsigned != 0 { + return "UNSIGNED MEDIUMINT" + } + return "MEDIUMINT" + case fieldTypeJSON: + return "JSON" + case fieldTypeLong: + if mf.flags&flagUnsigned != 0 { + return "UNSIGNED INT" + } + return "INT" + case fieldTypeLongBLOB: + if mf.charSet != binaryCollationID { + return "LONGTEXT" + } + return "LONGBLOB" + case fieldTypeLongLong: + if mf.flags&flagUnsigned != 0 { + return "UNSIGNED BIGINT" + } + return "BIGINT" + case fieldTypeMediumBLOB: + if mf.charSet != binaryCollationID { + return "MEDIUMTEXT" + } + return "MEDIUMBLOB" + case fieldTypeNewDate: + return "DATE" + case fieldTypeNewDecimal: + return "DECIMAL" + case fieldTypeNULL: + return "NULL" + case fieldTypeSet: + return "SET" + case fieldTypeShort: + if mf.flags&flagUnsigned != 0 { + return "UNSIGNED SMALLINT" + } + return "SMALLINT" + case fieldTypeString: + if mf.flags&flagEnum != 0 { + return "ENUM" + } else if mf.flags&flagSet != 0 { + return "SET" + } + if mf.charSet == binaryCollationID { + return "BINARY" + } + return "CHAR" + case fieldTypeTime: + return "TIME" + case fieldTypeTimestamp: + return "TIMESTAMP" + case fieldTypeTiny: + if mf.flags&flagUnsigned != 0 { + return "UNSIGNED TINYINT" + } + return "TINYINT" + case fieldTypeTinyBLOB: + if mf.charSet != binaryCollationID { + return "TINYTEXT" + } + return "TINYBLOB" + case fieldTypeVarChar: + if mf.charSet == binaryCollationID { + return "VARBINARY" + } + return "VARCHAR" + case fieldTypeVarString: + if mf.charSet == binaryCollationID { + return "VARBINARY" + } + return "VARCHAR" + case fieldTypeYear: + return "YEAR" + default: + return "" + } +} + +var ( + scanTypeFloat32 = reflect.TypeOf(float32(0)) + scanTypeFloat64 = reflect.TypeOf(float64(0)) + scanTypeInt8 = reflect.TypeOf(int8(0)) + scanTypeInt16 = reflect.TypeOf(int16(0)) + scanTypeInt32 = reflect.TypeOf(int32(0)) + scanTypeInt64 = reflect.TypeOf(int64(0)) + scanTypeNullFloat = reflect.TypeOf(sql.NullFloat64{}) + scanTypeNullInt = reflect.TypeOf(sql.NullInt64{}) + scanTypeNullTime = reflect.TypeOf(sql.NullTime{}) + scanTypeUint8 = reflect.TypeOf(uint8(0)) + scanTypeUint16 = reflect.TypeOf(uint16(0)) + scanTypeUint32 = reflect.TypeOf(uint32(0)) + scanTypeUint64 = reflect.TypeOf(uint64(0)) + scanTypeString = reflect.TypeOf("") + scanTypeNullString = reflect.TypeOf(sql.NullString{}) + scanTypeBytes = reflect.TypeOf([]byte{}) + scanTypeUnknown = reflect.TypeOf(new(any)) +) + +type mysqlField struct { + tableName string + name string + length uint32 + flags fieldFlag + fieldType fieldType + decimals byte + charSet uint8 +} + +func (mf *mysqlField) scanType() reflect.Type { + switch mf.fieldType { + case fieldTypeTiny: + if mf.flags&flagNotNULL != 0 { + if mf.flags&flagUnsigned != 0 { + return scanTypeUint8 + } + return scanTypeInt8 + } + return scanTypeNullInt + + case fieldTypeShort, fieldTypeYear: + if mf.flags&flagNotNULL != 0 { + if mf.flags&flagUnsigned != 0 { + return scanTypeUint16 + } + return scanTypeInt16 + } + return scanTypeNullInt + + case fieldTypeInt24, fieldTypeLong: + if mf.flags&flagNotNULL != 0 { + if mf.flags&flagUnsigned != 0 { + return scanTypeUint32 + } + return scanTypeInt32 + } + return scanTypeNullInt + + case fieldTypeLongLong: + if mf.flags&flagNotNULL != 0 { + if mf.flags&flagUnsigned != 0 { + return scanTypeUint64 + } + return scanTypeInt64 + } + return scanTypeNullInt + + case fieldTypeFloat: + if mf.flags&flagNotNULL != 0 { + return scanTypeFloat32 + } + return scanTypeNullFloat + + case fieldTypeDouble: + if mf.flags&flagNotNULL != 0 { + return scanTypeFloat64 + } + return scanTypeNullFloat + + case fieldTypeBit, fieldTypeTinyBLOB, fieldTypeMediumBLOB, fieldTypeLongBLOB, + fieldTypeBLOB, fieldTypeVarString, fieldTypeString, fieldTypeGeometry: + if mf.charSet == binaryCollationID { + return scanTypeBytes + } + fallthrough + case fieldTypeDecimal, fieldTypeNewDecimal, fieldTypeVarChar, + fieldTypeEnum, fieldTypeSet, fieldTypeJSON, fieldTypeTime: + if mf.flags&flagNotNULL != 0 { + return scanTypeString + } + return scanTypeNullString + + case fieldTypeDate, fieldTypeNewDate, + fieldTypeTimestamp, fieldTypeDateTime: + // NullTime is always returned for more consistent behavior as it can + // handle both cases of parseTime regardless if the field is nullable. + return scanTypeNullTime + + default: + return scanTypeUnknown + } +} |