1 files changed, 27 insertions, 0 deletions
diff --git a/vendor/github.com/quasilyte/regex/syntax/errors.go b/vendor/github.com/quasilyte/regex/syntax/errors.go
new file mode 100644
index 000000000..beefba5f9
--- /dev/null
+++ b/vendor/github.com/quasilyte/regex/syntax/errors.go
@@ -0,0 +1,27 @@
+package syntax
+
+type ParseError struct {
+	Pos     Position
+	Message string
+}
+
+func (e ParseError) Error() string { return e.Message }
+
+func throw(pos Position, message string) {
+	panic(ParseError{Pos: pos, Message: message})
+}
+
+func throwExpectedFound(pos Position, expected, found string) {
+	throw(pos, "expected '"+expected+"', found '"+found+"'")
+}
+
+func throwUnexpectedToken(pos Position, token string) {
+	throw(pos, "unexpected token: "+token)
+}
+
+func newPos(begin, end int) Position {
+	return Position{
+		Begin: uint16(begin),
+		End:   uint16(end),
+	}
+}