1 files changed, 36 insertions, 0 deletions
diff --git a/vendor/github.com/dalzilio/rudd/errors.go b/vendor/github.com/dalzilio/rudd/errors.go
new file mode 100644
index 0000000..7db6976
--- /dev/null
+++ b/vendor/github.com/dalzilio/rudd/errors.go
@@ -0,0 +1,36 @@
+// Copyright (c) 2021 Silvano DAL ZILIO
+//
+// MIT License
+
+package rudd
+
+import (
+	"fmt"
+	"log"
+)
+
+// Error returns the error status of the BDD.
+func (b *BDD) Error() string {
+	if b.error == nil {
+		return ""
+	}
+	return b.error.Error()
+}
+
+// Errored returns true if there was an error during a computation.
+func (b *BDD) Errored() bool {
+	return b.error != nil
+}
+
+func (b *BDD) seterror(format string, a ...interface{}) Node {
+	if b.error != nil {
+		format = format + "; " + b.Error()
+		b.error = fmt.Errorf(format, a...)
+		return nil
+	}
+	b.error = fmt.Errorf(format, a...)
+	if _DEBUG {
+		log.Println(b.error)
+	}
+	return nil
+}