add sqlite vendor (#48)

[bytom/vapor.git] / vendor / github.com / mattn / go-sqlite3 / sqlite3_context.go

diff --git a/vendor/github.com/mattn/go-sqlite3/sqlite3_context.go b/vendor/github.com/mattn/go-sqlite3/sqlite3_context.go
new file mode 100644 (file)
index 0000000..78ced18
--- /dev/null
+++ b/vendor/github.com/mattn/go-sqlite3/sqlite3_context.go
@@ -0,0 +1,103 @@
+// Copyright (C) 2014 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
+//
+// Use of this source code is governed by an MIT-style
+// license that can be found in the LICENSE file.
+
+package sqlite3
+
+/*
+
+#ifndef USE_LIBSQLITE3
+#include <sqlite3-binding.h>
+#else
+#include <sqlite3.h>
+#endif
+#include <stdlib.h>
+// These wrappers are necessary because SQLITE_TRANSIENT
+// is a pointer constant, and cgo doesn't translate them correctly.
+
+static inline void my_result_text(sqlite3_context *ctx, char *p, int np) {
+       sqlite3_result_text(ctx, p, np, SQLITE_TRANSIENT);
+}
+
+static inline void my_result_blob(sqlite3_context *ctx, void *p, int np) {
+       sqlite3_result_blob(ctx, p, np, SQLITE_TRANSIENT);
+}
+*/
+import "C"
+
+import (
+       "math"
+       "reflect"
+       "unsafe"
+)
+
+const i64 = unsafe.Sizeof(int(0)) > 4
+
+// SQLiteContext behave sqlite3_context
+type SQLiteContext C.sqlite3_context
+
+// ResultBool sets the result of an SQL function.
+func (c *SQLiteContext) ResultBool(b bool) {
+       if b {
+               c.ResultInt(1)
+       } else {
+               c.ResultInt(0)
+       }
+}
+
+// ResultBlob sets the result of an SQL function.
+// See: sqlite3_result_blob, http://sqlite.org/c3ref/result_blob.html
+func (c *SQLiteContext) ResultBlob(b []byte) {
+       if i64 && len(b) > math.MaxInt32 {
+               C.sqlite3_result_error_toobig((*C.sqlite3_context)(c))
+               return
+       }
+       var p *byte
+       if len(b) > 0 {
+               p = &b[0]
+       }
+       C.my_result_blob((*C.sqlite3_context)(c), unsafe.Pointer(p), C.int(len(b)))
+}
+
+// ResultDouble sets the result of an SQL function.
+// See: sqlite3_result_double, http://sqlite.org/c3ref/result_blob.html
+func (c *SQLiteContext) ResultDouble(d float64) {
+       C.sqlite3_result_double((*C.sqlite3_context)(c), C.double(d))
+}
+
+// ResultInt sets the result of an SQL function.
+// See: sqlite3_result_int, http://sqlite.org/c3ref/result_blob.html
+func (c *SQLiteContext) ResultInt(i int) {
+       if i64 && (i > math.MaxInt32 || i < math.MinInt32) {
+               C.sqlite3_result_int64((*C.sqlite3_context)(c), C.sqlite3_int64(i))
+       } else {
+               C.sqlite3_result_int((*C.sqlite3_context)(c), C.int(i))
+       }
+}
+
+// ResultInt64 sets the result of an SQL function.
+// See: sqlite3_result_int64, http://sqlite.org/c3ref/result_blob.html
+func (c *SQLiteContext) ResultInt64(i int64) {
+       C.sqlite3_result_int64((*C.sqlite3_context)(c), C.sqlite3_int64(i))
+}
+
+// ResultNull sets the result of an SQL function.
+// See: sqlite3_result_null, http://sqlite.org/c3ref/result_blob.html
+func (c *SQLiteContext) ResultNull() {
+       C.sqlite3_result_null((*C.sqlite3_context)(c))
+}
+
+// ResultText sets the result of an SQL function.
+// See: sqlite3_result_text, http://sqlite.org/c3ref/result_blob.html
+func (c *SQLiteContext) ResultText(s string) {
+       h := (*reflect.StringHeader)(unsafe.Pointer(&s))
+       cs, l := (*C.char)(unsafe.Pointer(h.Data)), C.int(h.Len)
+       C.my_result_text((*C.sqlite3_context)(c), cs, l)
+}
+
+// ResultZeroblob sets the result of an SQL function.
+// See: sqlite3_result_zeroblob, http://sqlite.org/c3ref/result_blob.html
+func (c *SQLiteContext) ResultZeroblob(n int) {
+       C.sqlite3_result_zeroblob((*C.sqlite3_context)(c), C.int(n))
+}