1 files changed, 145 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/source/Interpreter/OptionValueFileColonLine.cpp b/contrib/llvm-project/lldb/source/Interpreter/OptionValueFileColonLine.cpp
new file mode 100644
index 000000000000..dac557c4248a
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+++ b/contrib/llvm-project/lldb/source/Interpreter/OptionValueFileColonLine.cpp
@@ -0,0 +1,145 @@
+//===-- OptionValueFileColonLine.cpp---------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Interpreter/OptionValueFileColonLine.h"
+
+#include "lldb/DataFormatters/FormatManager.h"
+#include "lldb/Interpreter/CommandCompletions.h"
+#include "lldb/Interpreter/CommandInterpreter.h"
+#include "lldb/Utility/Args.h"
+#include "lldb/Utility/State.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+// This is an OptionValue for parsing file:line:column specifications.
+// I set the completer to "source file" which isn't quite right, but we can
+// only usefully complete in the file name part of it so it should be good
+// enough.
+OptionValueFileColonLine::OptionValueFileColonLine()
+    : OptionValue(), m_file_spec(), m_line_number(LLDB_INVALID_LINE_NUMBER),
+      m_column_number(LLDB_INVALID_COLUMN_NUMBER),
+      m_completion_mask(CommandCompletions::eSourceFileCompletion) {}
+
+OptionValueFileColonLine::OptionValueFileColonLine(llvm::StringRef input)
+    : OptionValue(), m_file_spec(), m_line_number(LLDB_INVALID_LINE_NUMBER),
+      m_column_number(LLDB_INVALID_COLUMN_NUMBER),
+      m_completion_mask(CommandCompletions::eSourceFileCompletion) {
+  SetValueFromString(input, eVarSetOperationAssign);
+}
+
+void OptionValueFileColonLine::DumpValue(const ExecutionContext *exe_ctx,
+                                         Stream &strm, uint32_t dump_mask) {
+  if (dump_mask & eDumpOptionType)
+    strm.Printf("(%s)", GetTypeAsCString());
+  if (dump_mask & eDumpOptionValue) {
+    if (dump_mask & eDumpOptionType)
+      strm.PutCString(" = ");
+
+    if (m_file_spec)
+      strm << '"' << m_file_spec.GetPath().c_str() << '"';
+    if (m_line_number != LLDB_INVALID_LINE_NUMBER)
+      strm.Printf(":%d", m_line_number);
+    if (m_column_number != LLDB_INVALID_COLUMN_NUMBER)
+      strm.Printf(":%d", m_column_number);
+  }
+}
+
+Status OptionValueFileColonLine::SetValueFromString(llvm::StringRef value,
+                                                    VarSetOperationType op) {
+  Status error;
+  switch (op) {
+  case eVarSetOperationClear:
+    Clear();
+    NotifyValueChanged();
+    break;
+
+  case eVarSetOperationReplace:
+  case eVarSetOperationAssign:
+    if (value.size() > 0) {
+      // This is in the form filename:linenumber:column.
+      // I wish we could use filename:linenumber.column, that would make the
+      // parsing unambiguous and so much easier...
+      // But clang & gcc both print the output with two : so we're stuck with
+      // the two colons.  Practically, the only actual ambiguity this introduces
+      // is with files like "foo:10", which doesn't seem terribly likely.
+
+      // Providing the column is optional, so the input value might have one or
+      // two colons.  First pick off the last colon separated piece.
+      // It has to be there, since the line number is required:
+      llvm::StringRef last_piece;
+      llvm::StringRef left_of_last_piece;
+
+      std::tie(left_of_last_piece, last_piece) = value.rsplit(':');
+      if (last_piece.empty()) {
+        error.SetErrorStringWithFormat("Line specifier must include file and "
+                                       "line: '%s'",
+                                       value.str().c_str());
+        return error;
+      }
+
+      // Now see if there's another colon and if so pull out the middle piece:
+      // Then check whether the middle piece is an integer.  If it is, then it
+      // was the line number, and if it isn't we're going to assume that there
+      // was a colon in the filename (see note at the beginning of the function)
+      // and ignore it.
+      llvm::StringRef file_name;
+      llvm::StringRef middle_piece;
+
+      std::tie(file_name, middle_piece) = left_of_last_piece.rsplit(':');
+      if (middle_piece.empty() || !llvm::to_integer(middle_piece, 
+                                                    m_line_number)) {
+        // The middle piece was empty or not an integer, so there were only two
+        // legit pieces; our original division was right.  Reassign the file
+        // name and pull out the line number:
+        file_name = left_of_last_piece;
+        if (!llvm::to_integer(last_piece, m_line_number)) {
+          error.SetErrorStringWithFormat("Bad line number value '%s' in: '%s'",
+                                         last_piece.str().c_str(),
+                                         value.str().c_str());
+          return error;
+        }
+      } else {
+        // There were three pieces, and we've got the line number.  So now
+        // we just need to check the column number which was the last peice.
+        if (!llvm::to_integer(last_piece, m_column_number)) {
+          error.SetErrorStringWithFormat("Bad column value '%s' in: '%s'",
+                                         last_piece.str().c_str(),
+                                         value.str().c_str());
+          return error;
+        }
+      }
+
+      m_value_was_set = true;
+      m_file_spec.SetFile(file_name, FileSpec::Style::native);
+      NotifyValueChanged();
+    } else {
+      error.SetErrorString("invalid value string");
+    }
+    break;
+
+  case eVarSetOperationInsertBefore:
+  case eVarSetOperationInsertAfter:
+  case eVarSetOperationRemove:
+  case eVarSetOperationAppend:
+  case eVarSetOperationInvalid:
+    error = OptionValue::SetValueFromString(value, op);
+    break;
+  }
+  return error;
+}
+
+lldb::OptionValueSP OptionValueFileColonLine::DeepCopy() const {
+  return OptionValueSP(new OptionValueFileColonLine(*this));
+}
+
+void OptionValueFileColonLine::AutoComplete(CommandInterpreter &interpreter,
+                                            CompletionRequest &request) {
+  CommandCompletions::InvokeCommonCompletionCallbacks(
+      interpreter, m_completion_mask, request, nullptr);
+}