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-rw-r--r--grammer.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/grammer.cpp b/grammer.cpp
index 796c099..508d6c5 100644
--- a/grammer.cpp
+++ b/grammer.cpp
@@ -179,7 +179,7 @@ bool Tree::Add(const Token& token, const BNF& bnf, const std::map<std::string, s
std::vector<TreeNode> parent_nodes = getParentTreeNode(bnf, reverseBNF);
if (parent_nodes.size() == 0)
- throw std::runtime_error("Couldn't add new parent node for "s + nodes[root].token.type);
+ throw std::runtime_error("Couldn't add new parent node for "s + nodes[root].token.type + "("s + std::to_string(root) + ")"s);
for (const auto &i : parent_nodes) {
AddRootNode(i);