diff options
Diffstat (limited to 'vendor/github.com/ncruces/go-sqlite3/context.go')
| -rw-r--r-- | vendor/github.com/ncruces/go-sqlite3/context.go | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/vendor/github.com/ncruces/go-sqlite3/context.go b/vendor/github.com/ncruces/go-sqlite3/context.go deleted file mode 100644 index 637ddc282..000000000 --- a/vendor/github.com/ncruces/go-sqlite3/context.go +++ /dev/null @@ -1,228 +0,0 @@ -package sqlite3 - -import ( - "encoding/json" - "errors" - "math" - "time" - - "github.com/ncruces/go-sqlite3/internal/util" -) - -// Context is the context in which an SQL function executes. -// An SQLite [Context] is in no way related to a Go [context.Context]. -// -// https://sqlite.org/c3ref/context.html -type Context struct { - c *Conn - handle ptr_t -} - -// Conn returns the database connection of the -// [Conn.CreateFunction] or [Conn.CreateWindowFunction] -// routines that originally registered the application defined function. -// -// https://sqlite.org/c3ref/context_db_handle.html -func (ctx Context) Conn() *Conn { - return ctx.c -} - -// SetAuxData saves metadata for argument n of the function. -// -// https://sqlite.org/c3ref/get_auxdata.html -func (ctx Context) SetAuxData(n int, data any) { - ptr := util.AddHandle(ctx.c.ctx, data) - ctx.c.call("sqlite3_set_auxdata_go", stk_t(ctx.handle), stk_t(n), stk_t(ptr)) -} - -// GetAuxData returns metadata for argument n of the function. -// -// https://sqlite.org/c3ref/get_auxdata.html -func (ctx Context) GetAuxData(n int) any { - ptr := ptr_t(ctx.c.call("sqlite3_get_auxdata", stk_t(ctx.handle), stk_t(n))) - return util.GetHandle(ctx.c.ctx, ptr) -} - -// ResultBool sets the result of the function to a bool. -// SQLite does not have a separate boolean storage class. -// Instead, boolean values are stored as integers 0 (false) and 1 (true). -// -// https://sqlite.org/c3ref/result_blob.html -func (ctx Context) ResultBool(value bool) { - var i int64 - if value { - i = 1 - } - ctx.ResultInt64(i) -} - -// ResultInt sets the result of the function to an int. -// -// https://sqlite.org/c3ref/result_blob.html -func (ctx Context) ResultInt(value int) { - ctx.ResultInt64(int64(value)) -} - -// ResultInt64 sets the result of the function to an int64. -// -// https://sqlite.org/c3ref/result_blob.html -func (ctx Context) ResultInt64(value int64) { - ctx.c.call("sqlite3_result_int64", - stk_t(ctx.handle), stk_t(value)) -} - -// ResultFloat sets the result of the function to a float64. -// -// https://sqlite.org/c3ref/result_blob.html -func (ctx Context) ResultFloat(value float64) { - ctx.c.call("sqlite3_result_double", - stk_t(ctx.handle), stk_t(math.Float64bits(value))) -} - -// ResultText sets the result of the function to a string. -// -// https://sqlite.org/c3ref/result_blob.html -func (ctx Context) ResultText(value string) { - ptr := ctx.c.newString(value) - ctx.c.call("sqlite3_result_text_go", - stk_t(ctx.handle), stk_t(ptr), stk_t(len(value))) -} - -// ResultRawText sets the text result of the function to a []byte. -// Returning a nil slice is the same as calling [Context.ResultNull]. -// -// https://sqlite.org/c3ref/result_blob.html -func (ctx Context) ResultRawText(value []byte) { - ptr := ctx.c.newBytes(value) - ctx.c.call("sqlite3_result_text_go", - stk_t(ctx.handle), stk_t(ptr), stk_t(len(value))) -} - -// ResultBlob sets the result of the function to a []byte. -// Returning a nil slice is the same as calling [Context.ResultNull]. -// -// https://sqlite.org/c3ref/result_blob.html -func (ctx Context) ResultBlob(value []byte) { - ptr := ctx.c.newBytes(value) - ctx.c.call("sqlite3_result_blob_go", - stk_t(ctx.handle), stk_t(ptr), stk_t(len(value))) -} - -// ResultZeroBlob sets the result of the function to a zero-filled, length n BLOB. -// -// https://sqlite.org/c3ref/result_blob.html -func (ctx Context) ResultZeroBlob(n int64) { - ctx.c.call("sqlite3_result_zeroblob64", - stk_t(ctx.handle), stk_t(n)) -} - -// ResultNull sets the result of the function to NULL. -// -// https://sqlite.org/c3ref/result_blob.html -func (ctx Context) ResultNull() { - ctx.c.call("sqlite3_result_null", - stk_t(ctx.handle)) -} - -// ResultTime sets the result of the function to a [time.Time]. -// -// https://sqlite.org/c3ref/result_blob.html -func (ctx Context) ResultTime(value time.Time, format TimeFormat) { - switch format { - case TimeFormatDefault, TimeFormatAuto, time.RFC3339Nano: - ctx.resultRFC3339Nano(value) - return - } - switch v := format.Encode(value).(type) { - case string: - ctx.ResultText(v) - case int64: - ctx.ResultInt64(v) - case float64: - ctx.ResultFloat(v) - default: - panic(util.AssertErr()) - } -} - -func (ctx Context) resultRFC3339Nano(value time.Time) { - const maxlen = int64(len(time.RFC3339Nano)) + 5 - - ptr := ctx.c.new(maxlen) - buf := util.View(ctx.c.mod, ptr, maxlen) - buf = value.AppendFormat(buf[:0], time.RFC3339Nano) - - ctx.c.call("sqlite3_result_text_go", - stk_t(ctx.handle), stk_t(ptr), stk_t(len(buf))) -} - -// ResultPointer sets the result of the function to NULL, just like [Context.ResultNull], -// except that it also associates ptr with that NULL value such that it can be retrieved -// within an application-defined SQL function using [Value.Pointer]. -// -// https://sqlite.org/c3ref/result_blob.html -func (ctx Context) ResultPointer(ptr any) { - valPtr := util.AddHandle(ctx.c.ctx, ptr) - ctx.c.call("sqlite3_result_pointer_go", - stk_t(ctx.handle), stk_t(valPtr)) -} - -// ResultJSON sets the result of the function to the JSON encoding of value. -// -// https://sqlite.org/c3ref/result_blob.html -func (ctx Context) ResultJSON(value any) { - data, err := json.Marshal(value) - if err != nil { - ctx.ResultError(err) - return // notest - } - ctx.ResultRawText(data) -} - -// ResultValue sets the result of the function to a copy of [Value]. -// -// https://sqlite.org/c3ref/result_blob.html -func (ctx Context) ResultValue(value Value) { - if value.c != ctx.c { - ctx.ResultError(MISUSE) - return - } - ctx.c.call("sqlite3_result_value", - stk_t(ctx.handle), stk_t(value.handle)) -} - -// ResultError sets the result of the function an error. -// -// https://sqlite.org/c3ref/result_blob.html -func (ctx Context) ResultError(err error) { - if errors.Is(err, NOMEM) { - ctx.c.call("sqlite3_result_error_nomem", stk_t(ctx.handle)) - return - } - - if errors.Is(err, TOOBIG) { - ctx.c.call("sqlite3_result_error_toobig", stk_t(ctx.handle)) - return - } - - msg, code := errorCode(err, _OK) - if msg != "" { - defer ctx.c.arena.mark()() - ptr := ctx.c.arena.string(msg) - ctx.c.call("sqlite3_result_error", - stk_t(ctx.handle), stk_t(ptr), stk_t(len(msg))) - } - if code != _OK { - ctx.c.call("sqlite3_result_error_code", - stk_t(ctx.handle), stk_t(code)) - } -} - -// VTabNoChange may return true if a column is being fetched as part -// of an update during which the column value will not change. -// -// https://sqlite.org/c3ref/vtab_nochange.html -func (ctx Context) VTabNoChange() bool { - b := int32(ctx.c.call("sqlite3_vtab_nochange", stk_t(ctx.handle))) - return b != 0 -} |