go/sqlite3
1
0
Fork 0
mirror of https://github.com/ncruces/go-sqlite3.git synced 2026-01-12 05:59:14 +00:00
Code Issues Packages Projects Releases Wiki Activity

Go 1.23.

Browse Source
This commit is contained in:
Nuno Cruces
2025-02-21 12:17:08 +00:00
parent 12034c4f0b
commit f536765206
10 changed files with 30 additions and 160 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
conn.go
View File

@@ -3,6 +3,7 @@ package sqlite3
import (
"context"
"fmt"
"iter"
"math"
"math/rand"
"net/url"
@@ -503,10 +504,16 @@ func (c *Conn) error(rc res_t, sql ...string) error {
return c.sqlite.error(rc, c.handle, sql...)
}
func (c *Conn) stmtsIter(yield func(*Stmt) bool) {
for _, s := range c.stmts {
if !yield(s) {
break
// Stmts returns an iterator for the prepared statements
// associated with the database connection.
//
// https://sqlite.org/c3ref/next_stmt.html
func (c *Conn) Stmts() iter.Seq[*Stmt] {
return func(yield func(*Stmt) bool) {
for _, s := range c.stmts {
if !yield(s) {
break
}
}
}
}

11
conn_iter.go
View File

@@ -1,11 +0,0 @@
//go:build go1.23
package sqlite3
import "iter"
// Stmts returns an iterator for the prepared statements
// associated with the database connection.
//
// https://sqlite.org/c3ref/next_stmt.html
func (c *Conn) Stmts() iter.Seq[*Stmt] { return c.stmtsIter }

9
conn_old.go
View File

@@ -1,9 +0,0 @@
//go:build !go1.23
package sqlite3
// Stmts returns an iterator for the prepared statements
// associated with the database connection.
//
// https://sqlite.org/c3ref/next_stmt.html
func (c *Conn) Stmts() func(func(*Stmt) bool) { return c.stmtsIter }

2
embed/bcw2/go.mod
View File

@@ -1,6 +1,6 @@
module github.com/ncruces/go-sqlite3/embed/bcw2
go 1.22.0
go 1.23.0
toolchain go1.24.0

70
ext/fileio/coro.go
View File

@@ -1,70 +0,0 @@
//go:build !go1.23
package fileio
import (
"fmt"
"github.com/ncruces/go-sqlite3/internal/util"
)
// Adapted from: https://research.swtch.com/coro
const errCoroCanceled = util.ErrorString("coroutine canceled")
func coroNew[In, Out any](f func(In, func(Out) In) Out) (resume func(In) (Out, bool), cancel func()) {
type msg[T any] struct {
panic any
val T
}
cin := make(chan msg[In])
cout := make(chan msg[Out])
running := true
resume = func(in In) (out Out, ok bool) {
if !running {
return
}
cin <- msg[In]{val: in}
m := <-cout
if m.panic != nil {
panic(m.panic)
}
return m.val, running
}
cancel = func() {
if !running {
return
}
e := fmt.Errorf("%w", errCoroCanceled)
cin <- msg[In]{panic: e}
m := <-cout
if m.panic != nil && m.panic != e {
panic(m.panic)
}
}
yield := func(out Out) In {
cout <- msg[Out]{val: out}
m := <-cin
if m.panic != nil {
panic(m.panic)
}
return m.val
}
go func() {
defer func() {
if running {
running = false
cout <- msg[Out]{panic: recover()}
}
}()
var out Out
m := <-cin
if m.panic == nil {
out = f(m.val, yield)
}
running = false
cout <- msg[Out]{val: out}
}()
return resume, cancel
}

19
ext/fileio/fsdir.go
View File

@@ -2,6 +2,7 @@ package fileio
import (
"io/fs"
"iter"
"os"
"path"
"path/filepath"
@@ -63,7 +64,7 @@ func (d fsdir) Open() (sqlite3.VTabCursor, error) {
type cursor struct {
fsdir
base string
resume resume
resume func() (entry, bool)
cancel func()
curr entry
eof bool
@@ -101,14 +102,26 @@ func (c *cursor) Filter(idxNum int, idxStr string, arg ...sqlite3.Value) error {
c.base = base
}
c.resume, c.cancel = pull(c, root)
c.resume, c.cancel = iter.Pull(func(yield func(entry) bool) {
walkDir := func(path string, d fs.DirEntry, err error) error {
if yield(entry{d, err, path}) {
return nil
}
return fs.SkipAll
}
if c.fsys != nil {
fs.WalkDir(c.fsys, root, walkDir)
} else {
filepath.WalkDir(root, walkDir)
}
})
c.eof = false
c.rowID = 0
return c.Next()
}
func (c *cursor) Next() error {
curr, ok := next(c)
curr, ok := c.resume()
c.curr = curr
c.eof = !ok
c.rowID++

29
ext/fileio/fsdir_coro.go
View File

@@ -1,29 +0,0 @@
//go:build !go1.23
package fileio
import (
"io/fs"
"path/filepath"
)
type resume = func(struct{}) (entry, bool)
func next(c *cursor) (entry, bool) {
return c.resume(struct{}{})
}
func pull(c *cursor, root string) (resume, func()) {
return coroNew(func(_ struct{}, yield func(entry) struct{}) entry {
walkDir := func(path string, d fs.DirEntry, err error) error {
yield(entry{d, err, path})
return nil
}
if c.fsys != nil {
fs.WalkDir(c.fsys, root, walkDir)
} else {
filepath.WalkDir(root, walkDir)
}
return entry{}
})
}

31
ext/fileio/fsdir_iter.go
View File

@@ -1,31 +0,0 @@
//go:build go1.23
package fileio
import (
"io/fs"
"iter"
"path/filepath"
)
type resume = func() (entry, bool)
func next(c *cursor) (entry, bool) {
return c.resume()
}
func pull(c *cursor, root string) (resume, func()) {
return iter.Pull(func(yield func(entry) bool) {
walkDir := func(path string, d fs.DirEntry, err error) error {
if yield(entry{d, err, path}) {
return nil
}
return fs.SkipAll
}
if c.fsys != nil {
fs.WalkDir(c.fsys, root, walkDir)
} else {
filepath.WalkDir(root, walkDir)
}
})
}

2
go.mod
View File

@@ -1,6 +1,6 @@
module github.com/ncruces/go-sqlite3
go 1.22.0
go 1.23.0
toolchain go1.24.0

2
gormlite/go.mod
View File

@@ -1,6 +1,6 @@
module github.com/ncruces/go-sqlite3/gormlite
go 1.22.0
go 1.23.0
toolchain go1.24.0