YQL-19616 Implement ILexer via antlr_ast

- [x] Added `antlr_ast/antlr4` module and moved `TLexerTokensCollector4` there from `proto_ast/antlr4`.
- [x] Moved stuff around back and forth.

Ready for a review.

---
Co-authored-by: vityaman [[email protected]]

Pull Request resolved: https://github.com/ytsaurus/ytsaurus/pull/1128
commit_hash:e08785c3408ef813505bdc7511560e9536f4ab79

1 files changed, 47 insertions, 0 deletions

diff --git a/yql/essentials/parser/common/error.cpp b/yql/essentials/parser/common/error.cpp
new file mode 100644
index 00000000000..9954a037cb4
--- /dev/null
+++ b/yql/essentials/parser/common/error.cpp
@@ -0,0 +1,47 @@
+#include "error.h"
+
+namespace NAST {
+
+    IErrorCollector::IErrorCollector(size_t maxErrors)
+        : MaxErrors(maxErrors)
+        , NumErrors(0)
+    {
+    }
+
+    IErrorCollector::~IErrorCollector()
+    {
+    }
+
+    void IErrorCollector::Error(ui32 line, ui32 col, const TString& message) {
+        if (NumErrors + 1 == MaxErrors) {
+            AddError(0, 0, "Too many errors");
+            ++NumErrors;
+        }
+
+        if (NumErrors >= MaxErrors) {
+            ythrow TTooManyErrors() << "Too many errors";
+        }
+
+        AddError(line, col, message);
+        ++NumErrors;
+    }
+
+    TErrorOutput::TErrorOutput(IOutputStream& err, const TString& name, size_t maxErrors)
+        : IErrorCollector(maxErrors)
+        , Err(err)
+        , Name(name)
+    {
+    }
+
+    TErrorOutput::~TErrorOutput()
+    {
+    }
+
+    void TErrorOutput::AddError(ui32 line, ui32 col, const TString& message) {
+        if (!Name.empty()) {
+            Err << "Query " << Name << ": ";
+        }
+        Err << "Line " << line << " column " << col << " error: " << message;
+    }
+
+} // namespace NAST