[PATCH] D120724: [pseudo] Add a print-grammar option in the tool

[Haojian Wu via Phabricator via cfe-commits]

hokein created this revision.
hokein added a reviewer: sammccall.
hokein requested review of this revision.
Herald added a project: clang.

This is helpful for debugging purposes.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D120724

Files:
  clang/tools/clang-pseudo/ClangPseudo.cpp


Index: clang/tools/clang-pseudo/ClangPseudo.cpp
===================================================================
--- clang/tools/clang-pseudo/ClangPseudo.cpp
+++ clang/tools/clang-pseudo/ClangPseudo.cpp
@@ -24,6 +24,7 @@
 
 static opt<std::string>
     Grammar("grammar", desc("Parse and check a BNF grammar file."), init(""));
+static opt<bool> PrintGrammar("print-grammar", desc("Print the grammar."));
 static opt<bool> PrintGraph("print-graph",
                             desc("Print the LR graph for the grammar"));
 static opt<bool> PrintTable("print-table",
@@ -60,6 +61,8 @@
     }
     llvm::outs() << llvm::formatv("grammar file {0} is parsed successfully\n",
                                   Grammar);
+    if (PrintGrammar)
+      llvm::outs() << G->dump();
     if (PrintGraph)
       llvm::outs() << clang::syntax::pseudo::LRGraph::buildLR0(*G).dumpForTests(
           *G);


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