From 90523906fa31c8f4e156dc7ef4a433a50d4b706d Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Wed, 30 Jul 2003 19:48:02 +0000
Subject: Make tablegen take an input filename to parse if one is specified,
 otherwise use stdin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7431 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/TableGen/FileParser.y | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'utils/TableGen/FileParser.y')

diff --git a/utils/TableGen/FileParser.y b/utils/TableGen/FileParser.y
index 55938f47ea..b82569ab74 100644
--- a/utils/TableGen/FileParser.y
+++ b/utils/TableGen/FileParser.y
@@ -24,12 +24,24 @@ typedef std::pair<Record*, std::vector<Init*>*> SubClassRefTy;
 static std::vector<std::pair<std::pair<std::string, std::vector<unsigned>*>,
                              Init*> > SetStack;
 
-void ParseFile() {
+void ParseFile(const std::string &Filename) {
   FILE *F = stdin;
+  if (Filename != "-") {
+    F = fopen(Filename.c_str(), "r");
+
+    if (F == 0) {
+      std::cerr << "Could not open input file '" + Filename + "'!\n";
+      abort();
+    }
+  }
+
 
   Filein = F;
   Filelineno = 1;
   Fileparse();
+
+  if (F != stdin)
+    fclose(F);
   Filein = stdin;
 }
 
-- 
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