[experiment] add alternative wasm sqlite3 implementation available via build-tag (#2863)

This allows for building GoToSocial with [SQLite transpiled to WASM](https://github.com/ncruces/go-sqlite3) and accessed through [Wazero](https://wazero.io/).

1 files changed, 106 insertions, 0 deletions

diff --git a/vendor/github.com/ncruces/go-sqlite3/internal/util/error.go b/vendor/github.com/ncruces/go-sqlite3/internal/util/error.go
new file mode 100644
index 000000000..1f5555fd3
--- /dev/null
+++ b/vendor/github.com/ncruces/go-sqlite3/internal/util/error.go
@@ -0,0 +1,106 @@
+package util
+
+import (
+	"runtime"
+	"strconv"
+)
+
+type ErrorString string
+
+func (e ErrorString) Error() string { return string(e) }
+
+const (
+	NilErr       = ErrorString("sqlite3: invalid memory address or null pointer dereference")
+	OOMErr       = ErrorString("sqlite3: out of memory")
+	RangeErr     = ErrorString("sqlite3: index out of range")
+	NoNulErr     = ErrorString("sqlite3: missing NUL terminator")
+	NoBinaryErr  = ErrorString("sqlite3: no SQLite binary embed/set/loaded")
+	BadBinaryErr = ErrorString("sqlite3: invalid SQLite binary embed/set/loaded")
+	TimeErr      = ErrorString("sqlite3: invalid time value")
+	WhenceErr    = ErrorString("sqlite3: invalid whence")
+	OffsetErr    = ErrorString("sqlite3: invalid offset")
+	TailErr      = ErrorString("sqlite3: multiple statements")
+	IsolationErr = ErrorString("sqlite3: unsupported isolation level")
+	ValueErr     = ErrorString("sqlite3: unsupported value")
+	NoVFSErr     = ErrorString("sqlite3: no such vfs: ")
+)
+
+func AssertErr() ErrorString {
+	msg := "sqlite3: assertion failed"
+	if _, file, line, ok := runtime.Caller(1); ok {
+		msg += " (" + file + ":" + strconv.Itoa(line) + ")"
+	}
+	return ErrorString(msg)
+}
+
+func ErrorCodeString(rc uint32) string {
+	switch rc {
+	case ABORT_ROLLBACK:
+		return "sqlite3: abort due to ROLLBACK"
+	case ROW:
+		return "sqlite3: another row available"
+	case DONE:
+		return "sqlite3: no more rows available"
+	}
+	switch rc & 0xff {
+	case OK:
+		return "sqlite3: not an error"
+	case ERROR:
+		return "sqlite3: SQL logic error"
+	case INTERNAL:
+		break
+	case PERM:
+		return "sqlite3: access permission denied"
+	case ABORT:
+		return "sqlite3: query aborted"
+	case BUSY:
+		return "sqlite3: database is locked"
+	case LOCKED:
+		return "sqlite3: database table is locked"
+	case NOMEM:
+		return "sqlite3: out of memory"
+	case READONLY:
+		return "sqlite3: attempt to write a readonly database"
+	case INTERRUPT:
+		return "sqlite3: interrupted"
+	case IOERR:
+		return "sqlite3: disk I/O error"
+	case CORRUPT:
+		return "sqlite3: database disk image is malformed"
+	case NOTFOUND:
+		return "sqlite3: unknown operation"
+	case FULL:
+		return "sqlite3: database or disk is full"
+	case CANTOPEN:
+		return "sqlite3: unable to open database file"
+	case PROTOCOL:
+		return "sqlite3: locking protocol"
+	case FORMAT:
+		break
+	case SCHEMA:
+		return "sqlite3: database schema has changed"
+	case TOOBIG:
+		return "sqlite3: string or blob too big"
+	case CONSTRAINT:
+		return "sqlite3: constraint failed"
+	case MISMATCH:
+		return "sqlite3: datatype mismatch"
+	case MISUSE:
+		return "sqlite3: bad parameter or other API misuse"
+	case NOLFS:
+		break
+	case AUTH:
+		return "sqlite3: authorization denied"
+	case EMPTY:
+		break
+	case RANGE:
+		return "sqlite3: column index out of range"
+	case NOTADB:
+		return "sqlite3: file is not a database"
+	case NOTICE:
+		return "sqlite3: notification message"
+	case WARNING:
+		return "sqlite3: warning message"
+	}
+	return "sqlite3: unknown error"
+}