mirror of https://github.com/go-gitea/gitea.git
Update xorm to latest version and fix correct `user` table referencing in sql (#4473)
Lauris BH
7 years ago
committed by
Lunny Xiao
parent
1e2da5d396
commit
0c59edaafa
@ -0,0 +1,119 @@
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// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package builder
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import (
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"unicode/utf8"
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"unsafe"
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)
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// A StringBuilder is used to efficiently build a string using Write methods.
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// It minimizes memory copying. The zero value is ready to use.
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// Do not copy a non-zero Builder.
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type StringBuilder struct {
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addr *StringBuilder // of receiver, to detect copies by value
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buf []byte
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}
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// noescape hides a pointer from escape analysis. noescape is
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// the identity function but escape analysis doesn't think the
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// output depends on the input. noescape is inlined and currently
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// compiles down to zero instructions.
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// USE CAREFULLY!
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// This was copied from the runtime; see issues 23382 and 7921.
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//go:nosplit
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func noescape(p unsafe.Pointer) unsafe.Pointer {
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x := uintptr(p)
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return unsafe.Pointer(x ^ 0)
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}
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func (b *StringBuilder) copyCheck() {
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if b.addr == nil {
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// This hack works around a failing of Go's escape analysis
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// that was causing b to escape and be heap allocated.
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// See issue 23382.
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// TODO: once issue 7921 is fixed, this should be reverted to
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// just "b.addr = b".
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b.addr = (*StringBuilder)(noescape(unsafe.Pointer(b)))
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} else if b.addr != b {
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panic("strings: illegal use of non-zero Builder copied by value")
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}
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}
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// String returns the accumulated string.
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func (b *StringBuilder) String() string {
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return *(*string)(unsafe.Pointer(&b.buf))
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}
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// Len returns the number of accumulated bytes; b.Len() == len(b.String()).
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func (b *StringBuilder) Len() int { return len(b.buf) }
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// Reset resets the Builder to be empty.
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func (b *StringBuilder) Reset() {
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b.addr = nil
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b.buf = nil
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}
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// grow copies the buffer to a new, larger buffer so that there are at least n
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// bytes of capacity beyond len(b.buf).
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func (b *StringBuilder) grow(n int) {
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buf := make([]byte, len(b.buf), 2*cap(b.buf)+n)
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copy(buf, b.buf)
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b.buf = buf
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}
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// Grow grows b's capacity, if necessary, to guarantee space for
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// another n bytes. After Grow(n), at least n bytes can be written to b
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// without another allocation. If n is negative, Grow panics.
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func (b *StringBuilder) Grow(n int) {
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b.copyCheck()
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if n < 0 {
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panic("strings.Builder.Grow: negative count")
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}
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if cap(b.buf)-len(b.buf) < n {
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b.grow(n)
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}
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}
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// Write appends the contents of p to b's buffer.
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// Write always returns len(p), nil.
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func (b *StringBuilder) Write(p []byte) (int, error) {
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b.copyCheck()
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b.buf = append(b.buf, p...)
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return len(p), nil
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}
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// WriteByte appends the byte c to b's buffer.
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// The returned error is always nil.
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func (b *StringBuilder) WriteByte(c byte) error {
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b.copyCheck()
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b.buf = append(b.buf, c)
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return nil
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}
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// WriteRune appends the UTF-8 encoding of Unicode code point r to b's buffer.
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// It returns the length of r and a nil error.
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func (b *StringBuilder) WriteRune(r rune) (int, error) {
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b.copyCheck()
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if r < utf8.RuneSelf {
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b.buf = append(b.buf, byte(r))
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return 1, nil
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}
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l := len(b.buf)
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if cap(b.buf)-l < utf8.UTFMax {
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b.grow(utf8.UTFMax)
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}
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n := utf8.EncodeRune(b.buf[l:l+utf8.UTFMax], r)
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b.buf = b.buf[:l+n]
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return n, nil
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}
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// WriteString appends the contents of s to b's buffer.
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// It returns the length of s and a nil error.
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func (b *StringBuilder) WriteString(s string) (int, error) {
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b.copyCheck()
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b.buf = append(b.buf, s...)
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return len(s), nil
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}
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@ -0,0 +1,113 @@
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// Copyright 2018 The Xorm Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package xorm
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import (
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"fmt"
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"reflect"
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"strings"
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"github.com/go-xorm/core"
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)
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// TableNameWithSchema will automatically add schema prefix on table name
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func (engine *Engine) tbNameWithSchema(v string) string {
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// Add schema name as prefix of table name.
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// Only for postgres database.
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if engine.dialect.DBType() == core.POSTGRES &&
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engine.dialect.URI().Schema != "" &&
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engine.dialect.URI().Schema != postgresPublicSchema &&
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strings.Index(v, ".") == -1 {
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return engine.dialect.URI().Schema + "." + v
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}
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return v
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}
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// TableName returns table name with schema prefix if has
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func (engine *Engine) TableName(bean interface{}, includeSchema ...bool) string {
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tbName := engine.tbNameNoSchema(bean)
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if len(includeSchema) > 0 && includeSchema[0] {
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tbName = engine.tbNameWithSchema(tbName)
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}
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return tbName
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}
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// tbName get some table's table name
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func (session *Session) tbNameNoSchema(table *core.Table) string {
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if len(session.statement.AltTableName) > 0 {
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return session.statement.AltTableName
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}
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return table.Name
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}
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func (engine *Engine) tbNameForMap(v reflect.Value) string {
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if v.Type().Implements(tpTableName) {
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return v.Interface().(TableName).TableName()
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}
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if v.Kind() == reflect.Ptr {
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v = v.Elem()
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if v.Type().Implements(tpTableName) {
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return v.Interface().(TableName).TableName()
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}
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}
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return engine.TableMapper.Obj2Table(v.Type().Name())
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}
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func (engine *Engine) tbNameNoSchema(tablename interface{}) string {
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switch tablename.(type) {
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case []string:
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t := tablename.([]string)
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if len(t) > 1 {
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return fmt.Sprintf("%v AS %v", engine.Quote(t[0]), engine.Quote(t[1]))
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} else if len(t) == 1 {
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return engine.Quote(t[0])
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}
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case []interface{}:
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t := tablename.([]interface{})
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l := len(t)
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var table string
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if l > 0 {
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f := t[0]
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switch f.(type) {
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case string:
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table = f.(string)
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case TableName:
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table = f.(TableName).TableName()
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default:
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v := rValue(f)
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t := v.Type()
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if t.Kind() == reflect.Struct {
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table = engine.tbNameForMap(v)
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} else {
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table = engine.Quote(fmt.Sprintf("%v", f))
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}
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}
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}
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if l > 1 {
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return fmt.Sprintf("%v AS %v", engine.Quote(table),
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engine.Quote(fmt.Sprintf("%v", t[1])))
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} else if l == 1 {
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return engine.Quote(table)
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}
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case TableName:
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return tablename.(TableName).TableName()
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case string:
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return tablename.(string)
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case reflect.Value:
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v := tablename.(reflect.Value)
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return engine.tbNameForMap(v)
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default:
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v := rValue(tablename)
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t := v.Type()
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if t.Kind() == reflect.Struct {
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return engine.tbNameForMap(v)
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}
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return engine.Quote(fmt.Sprintf("%v", tablename))
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}
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return ""
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}
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