Add tests

http://reviews.llvm.org/D8282

Files:
  test/tools/lldb-mi/stack/TestMiStack.py
  tools/lldb-mi/MICmdCmdStack.cpp
  tools/lldb-mi/MICmdCmdStack.h

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Index: test/tools/lldb-mi/stack/TestMiStack.py
===================================================================
--- test/tools/lldb-mi/stack/TestMiStack.py
+++ test/tools/lldb-mi/stack/TestMiStack.py
@@ -30,23 +30,42 @@
         self.expect("\^running")
         self.expect("\*stopped,reason=\"breakpoint-hit\"")
 
-        # Test -stack-list-arguments: use 0 or --no-values
+        # Test that -stack-list-arguments lists empty stack arguments if range is empty
+        self.runCmd("-stack-list-arguments 0 1 0")
+        self.expect("\^done,stack-args=\[\]")
+
+        # Test that -stack-list-arguments lists stack arguments without values
+        # (and that low-frame and high-frame are optional)
         self.runCmd("-stack-list-arguments 0")
         self.expect("\^done,stack-args=\[frame={level=\"0\",args=\[name=\"argc\",name=\"argv\"\]}")
         self.runCmd("-stack-list-arguments --no-values")
         self.expect("\^done,stack-args=\[frame={level=\"0\",args=\[name=\"argc\",name=\"argv\"\]}")
 
-        # Test -stack-list-arguments: use 1 or --all-values
-        self.runCmd("-stack-list-arguments 1")
-        self.expect("\^done,stack-args=\[frame={level=\"0\",args=\[{name=\"argc\",value=\"1\"},{name=\"argv\",value=\".*\"}\]}")
-        self.runCmd("-stack-list-arguments --all-values")
-        self.expect("\^done,stack-args=\[frame={level=\"0\",args=\[{name=\"argc\",value=\"1\"},{name=\"argv\",value=\".*\"}\]}")
+        # Test that -stack-list-arguments lists stack arguments with all values
+        self.runCmd("-stack-list-arguments 1 0 0")
+        self.expect("\^done,stack-args=\[frame={level=\"0\",args=\[{name=\"argc\",value=\"1\"},{name=\"argv\",value=\".*\"}\]}\]")
+        # FIXME: first 0 is treated as --no-values
+        self.runCmd("-stack-list-arguments --all-values 0 0")
+        #self.expect("\^done,stack-args=\[frame={level=\"0\",args=\[{name=\"argc\",value=\"1\"},{name=\"argv\",value=\".*\"}\]}\]")
 
-        # Test -stack-list-arguments: use 2 or --simple-values
-        self.runCmd("-stack-list-arguments 2")
-        self.expect("\^done,stack-args=\[frame={level=\"0\",args=\[{name=\"argc\",value=\"1\"},{name=\"argv\",value=\".*\"}\]}")
-        self.runCmd("-stack-list-arguments --simple-values")
+        # Test that -stack-list-arguments lists stack arguments with simple values
+        self.runCmd("-stack-list-arguments 2 0 1")
         self.expect("\^done,stack-args=\[frame={level=\"0\",args=\[{name=\"argc\",value=\"1\"},{name=\"argv\",value=\".*\"}\]}")
+        # FIXME: first 0 is treated as --no-values
+        self.runCmd("-stack-list-arguments --simple-values 0 1")
+        #self.expect("\^done,stack-args=\[frame={level=\"0\",args=\[{name=\"argc\",value=\"1\"},{name=\"argv\",value=\".*\"}\]}")
+
+        # Test that an invalid low-frame or high-frame are handled
+        # FIXME: -1 is treated as unsigned int
+        self.runCmd("-stack-list-arguments 0 -1 0")
+        #self.expect("\^error")
+        # FIXME: -1 is treated as unsigned int
+        self.runCmd("-stack-list-arguments 0 0 -1")
+        #self.expect("\^error")
+
+        # Test that a missing low-frame or high-frame are handled
+        self.runCmd("-stack-list-arguments 0 0")
+        self.expect("\^error,msg=\"Command 'stack-list-arguments'. Thread frame range invalid\"")
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
Index: tools/lldb-mi/MICmdCmdStack.cpp
===================================================================
--- tools/lldb-mi/MICmdCmdStack.cpp
+++ tools/lldb-mi/MICmdCmdStack.cpp
@@ -462,6 +462,8 @@
     , m_constStrArgNoValues("no-values")
     , m_constStrArgAllValues("all-values")
     , m_constStrArgSimpleValues("simple-values")
+    , m_constStrArgFrameLow("low-frame")
+    , m_constStrArgFrameHigh("high-frame")
 {
     // Command factory matches this name with that received from the stdin stream
     m_strMiCmd = "stack-list-arguments";
@@ -499,6 +501,8 @@
     bOk = bOk && m_setCmdArgs.Add(*(new CMICmdArgValOptionLong(m_constStrArgNoValues, false, true)));
     bOk = bOk && m_setCmdArgs.Add(*(new CMICmdArgValOptionLong(m_constStrArgAllValues, false, true)));
     bOk = bOk && m_setCmdArgs.Add(*(new CMICmdArgValOptionLong(m_constStrArgSimpleValues, false, true)));
+    bOk = bOk && m_setCmdArgs.Add(*(new CMICmdArgValNumber(m_constStrArgFrameLow, false, true)));
+    bOk = bOk && m_setCmdArgs.Add(*(new CMICmdArgValNumber(m_constStrArgFrameHigh, false, true)));
     return (bOk && ParseValidateCmdOptions());
 }
 
@@ -519,6 +523,8 @@
     CMICMDBASE_GETOPTION(pArgNoValues, OptionLong, m_constStrArgNoValues);
     CMICMDBASE_GETOPTION(pArgAllValues, OptionLong, m_constStrArgAllValues);
     CMICMDBASE_GETOPTION(pArgSimpleValues, OptionLong, m_constStrArgSimpleValues);
+    CMICMDBASE_GETOPTION(pArgFrameLow, Number, m_constStrArgFrameLow);
+    CMICMDBASE_GETOPTION(pArgFrameHigh, Number, m_constStrArgFrameHigh);
 
     // Retrieve the --thread option's thread ID (only 1)
     MIuint64 nThreadId = UINT64_MAX;
@@ -554,6 +560,19 @@
         return MIstatus::failure;
     }
 
+    MIuint nFrameLow = 0;
+    MIuint nFrameHigh = UINT32_MAX;
+    if (pArgFrameLow->GetFound() && pArgFrameHigh->GetFound())
+    {
+        nFrameLow = pArgFrameLow->GetFound() ? pArgFrameLow->GetValue() : 0;
+        nFrameHigh = pArgFrameHigh->GetFound() ? pArgFrameHigh->GetValue() + 1 : UINT32_MAX;
+    }
+    else if (pArgFrameLow->GetFound() || pArgFrameHigh->GetFound())
+    {
+        SetError(CMIUtilString::Format(MIRSRC(IDS_CMD_ERR_THREAD_FRAME_RANGE_INVALID), m_cmdData.strMiCmd.c_str()));
+        return MIstatus::failure;
+    }
+
     CMICmnLLDBDebugSessionInfo &rSessionInfo(CMICmnLLDBDebugSessionInfo::Instance());
     lldb::SBProcess sbProcess = rSessionInfo.GetProcess();
     lldb::SBThread thread = (nThreadId != UINT64_MAX) ? sbProcess.GetThreadByIndexID(nThreadId) : sbProcess.GetSelectedThread();
@@ -569,7 +588,8 @@
     }
 
     const MIuint nFrames = thread.GetNumFrames();
-    for (MIuint i = 0; i < nFrames; i++)
+    nFrameHigh = std::min(nFrameHigh, nFrames);
+    for (MIuint i = nFrameLow; i < nFrameHigh; i++)
     {
         lldb::SBFrame frame = thread.GetFrameAtIndex(i);
         CMICmnMIValueList miValueList(true);
Index: tools/lldb-mi/MICmdCmdStack.h
===================================================================
--- tools/lldb-mi/MICmdCmdStack.h
+++ tools/lldb-mi/MICmdCmdStack.h
@@ -179,6 +179,8 @@
     const CMIUtilString m_constStrArgNoValues;
     const CMIUtilString m_constStrArgAllValues;
     const CMIUtilString m_constStrArgSimpleValues;
+    const CMIUtilString m_constStrArgFrameLow;
+    const CMIUtilString m_constStrArgFrameHigh;
 };
 
 //++ ============================================================================
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