Implement a suggestions mechanism

Each `Error` class now includes a set of suggestions, and these are printed by the top-level handler.
2022-03-07 10:09:09 +01:00
parent b09baf690b
commit c0792b1546
7 changed files with 191 additions and 6 deletions
@@ -282,6 +282,13 @@ std::ostream & showErrorInfo(std::ostream & out, const ErrorInfo & einfo, bool s
        }
    }

+    auto suggestions = einfo.suggestions.trim();
+    if (! suggestions.suggestions.empty()){
+        oss << "Did you mean " <<
+            suggestions.trim().pretty_print() <<
+            "?" << std::endl;
+    }
+
    // traces
    if (showTrace && !einfo.traces.empty()) {
        for (auto iter = einfo.traces.rbegin(); iter != einfo.traces.rend(); ++iter) {