Add a line number to error messages

1 files changed, 15 insertions, 0 deletions

diff --git a/error/error.go b/error/error.go
new file mode 100644
index 0000000..1745c52
--- /dev/null
+++ b/error/error.go
@@ -0,0 +1,15 @@
+package error
+
+import "fmt"
+
+type SpecError struct {
+	Cause error
+	Row   int
+}
+
+func (e *SpecError) Error() string {
+	if e.Row == 0 {
+		return fmt.Sprintf("error: %v", e.Cause)
+	}
+	return fmt.Sprintf("%v: error: %v", e.Row, e.Cause)
+}