From 75b1783b2bf18572e9c286eaaa7f95ee82e7c514 Mon Sep 17 00:00:00 2001
From: Reid Kleckner <reid@kleckner.net>
Date: Fri, 19 Jul 2013 18:05:13 +0000
Subject: Add some flag exclusion tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186704 91177308-0d34-0410-b5e6-96231b3b80d8
---
 unittests/Option/OptionParsingTest.cpp | 46 ++++++++++++++++++++++++++++------
 unittests/Option/Opts.td               | 15 +++++++----
 2 files changed, 49 insertions(+), 12 deletions(-)

(limited to 'unittests/Option')

diff --git a/unittests/Option/OptionParsingTest.cpp b/unittests/Option/OptionParsingTest.cpp
index 30944d9be7..8bfa99b5de 100644
--- a/unittests/Option/OptionParsingTest.cpp
+++ b/unittests/Option/OptionParsingTest.cpp
@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/ADT/OwningPtr.h"
+#include "llvm/ADT/STLExtras.h"
 #include "llvm/Option/Arg.h"
 #include "llvm/Option/ArgList.h"
 #include "llvm/Option/Option.h"
@@ -29,6 +30,12 @@ enum ID {
 #include "Opts.inc"
 #undef PREFIX
 
+enum OptionFlags {
+  OptFlag1 = (1 << 4),
+  OptFlag2 = (1 << 5),
+  OptFlag3 = (1 << 6)
+};
+
 static const OptTable::Info InfoTable[] = {
 #define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, FLAGS, PARAM, \
                HELPTEXT, METAVAR)   \
@@ -42,7 +49,7 @@ namespace {
 class TestOptTable : public OptTable {
 public:
   TestOptTable()
-    : OptTable(InfoTable, sizeof(InfoTable) / sizeof(InfoTable[0])) {}
+    : OptTable(InfoTable, array_lengthof(InfoTable)) {}
 };
 }
 
@@ -58,14 +65,10 @@ const char *Args[] = {
   "-Gchuu", "2"
   };
 
-TEST(Support, OptionParsing) {
+TEST(Option, OptionParsing) {
   TestOptTable T;
   unsigned MAI, MAC;
-  OwningPtr<InputArgList>
-    AL(T.ParseArgs(Args,
-                   Args + (sizeof(Args) / sizeof(Args[0])),
-                   MAI,
-                   MAC));
+  OwningPtr<InputArgList> AL(T.ParseArgs(Args, array_endof(Args), MAI, MAC));
 
   // Check they all exist.
   EXPECT_TRUE(AL->hasArg(OPT_A));
@@ -104,3 +107,32 @@ TEST(Support, OptionParsing) {
   EXPECT_EQ(StringRef(ASL[0]), "-C");
   EXPECT_EQ(StringRef(ASL[1]), "desu");
 }
+
+TEST(Option, ParseWithFlagExclusions) {
+  TestOptTable T;
+  unsigned MAI, MAC;
+  OwningPtr<InputArgList> AL;
+
+  // Exclude flag3 to avoid parsing as OPT_SLASH_C.
+  AL.reset(T.ParseArgs(Args, array_endof(Args), MAI, MAC,
+                       /*FlagsToInclude=*/0,
+                       /*FlagsToExclude=*/OptFlag3));
+  EXPECT_TRUE(AL->hasArg(OPT_A));
+  EXPECT_TRUE(AL->hasArg(OPT_C));
+  EXPECT_FALSE(AL->hasArg(OPT_SLASH_C));
+
+  // Exclude flag1 to avoid parsing as OPT_C.
+  AL.reset(T.ParseArgs(Args, array_endof(Args), MAI, MAC,
+                       /*FlagsToInclude=*/0,
+                       /*FlagsToExclude=*/OptFlag1));
+  EXPECT_TRUE(AL->hasArg(OPT_B));
+  EXPECT_FALSE(AL->hasArg(OPT_C));
+  EXPECT_TRUE(AL->hasArg(OPT_SLASH_C));
+
+  const char *NewArgs[] = { "/C", "foo", "--C=bar" };
+  AL.reset(T.ParseArgs(NewArgs, array_endof(NewArgs), MAI, MAC));
+  EXPECT_TRUE(AL->hasArg(OPT_SLASH_C));
+  EXPECT_TRUE(AL->hasArg(OPT_C));
+  EXPECT_EQ(AL->getLastArgValue(OPT_SLASH_C), "foo");
+  EXPECT_EQ(AL->getLastArgValue(OPT_C), "bar");
+}
diff --git a/unittests/Option/Opts.td b/unittests/Option/Opts.td
index 3d6242f518..ccb377fc7e 100644
--- a/unittests/Option/Opts.td
+++ b/unittests/Option/Opts.td
@@ -1,13 +1,18 @@
 include "llvm/Option/OptParser.td"
 
-def A : Flag<["-"], "A">, HelpText<"The A option">;
-def B : Joined<["-"], "B">, HelpText<"The B option">, MetaVarName<"B">;
-def C : Separate<["-"], "C">, HelpText<"The C option">, MetaVarName<"C">;
+def OptFlag1 : OptionFlag;
+def OptFlag2 : OptionFlag;
+def OptFlag3 : OptionFlag;
+
+def A : Flag<["-"], "A">, HelpText<"The A option">, Flags<[OptFlag1]>;
+def B : Joined<["-"], "B">, HelpText<"The B option">, MetaVarName<"B">, Flags<[OptFlag2]>;
+def C : Separate<["-"], "C">, HelpText<"The C option">, MetaVarName<"C">, Flags<[OptFlag1]>;
+def SLASH_C : Separate<["/", "-"], "C">, HelpText<"The C option">, MetaVarName<"C">, Flags<[OptFlag3]>;
 def D : CommaJoined<["-"], "D">, HelpText<"The D option">, MetaVarName<"D">;
-def E : MultiArg<["-"], "E", 2>;
+def E : MultiArg<["-"], "E", 2>, Flags<[OptFlag1, OptFlag2]>;
 def F : JoinedOrSeparate<["-"], "F">, HelpText<"The F option">, MetaVarName<"F">;
 def G : JoinedAndSeparate<["-"], "G">, HelpText<"The G option">, MetaVarName<"G">;
 
-def Ceq : Joined<["-", "--"], "C=">, Alias<C>;
+def Ceq : Joined<["-", "--"], "C=">, Alias<C>, Flags<[OptFlag1]>;
 
 def H : Flag<["-"], "H">, Flags<[HelpHidden]>;
-- 
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