Replace intptr_t with TokenDescriptor

runtime/vm/simulator_arm64.cc

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include <setjmp.h>  // NOLINT
 #include <stdlib.h>
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_ARM64)
 
@@ skipping 77 matching lines @@
   char* ReadLine(const char* prompt);
 
  private:
   Simulator* sim_;
 
   bool GetValue(char* desc, uint64_t* value);
   bool GetSValue(char* desc, uint32_t* value);
   bool GetDValue(char* desc, uint64_t* value);
   bool GetQValue(char* desc, simd_value_t* value);
 
-  static intptr_t GetApproximateTokenIndex(const Code& code, uword pc);
+  static TokenPosition GetApproximateTokenIndex(const Code& code, uword pc);
 
   static void PrintDartFrame(uword pc, uword fp, uword sp,
                              const Function& function,
-                             intptr_t token_pos,
+                             TokenPosition token_pos,
                              bool is_optimized,
                              bool is_inlined);
   void PrintBacktrace();
 
   // Set or delete a breakpoint. Returns true if successful.
   bool SetBreakpoint(Instr* breakpc);
   bool DeleteBreakpoint(Instr* breakpc);
 
   // Undo and redo all breakpoints. This is needed to bracket disassembly and
   // execution to skip past breakpoints when run from the debugger.
@@ skipping 143 matching lines @@
         return false;
       }
       *value = *(reinterpret_cast<simd_value_t*>(addr));
       return true;
     }
   }
   return false;
 }
 
 
-intptr_t SimulatorDebugger::GetApproximateTokenIndex(const Code& code,
-                                                     uword pc) {
-  intptr_t token_pos = -1;
+TokenPosition SimulatorDebugger::GetApproximateTokenIndex(const Code& code,
+                                                            uword pc) {
+  TokenPosition token_pos = TokenPosition::kNoSource;
   uword pc_offset = pc - code.EntryPoint();
   const PcDescriptors& descriptors =
       PcDescriptors::Handle(code.pc_descriptors());
   PcDescriptors::Iterator iter(descriptors, RawPcDescriptors::kAnyKind);
   while (iter.MoveNext()) {
     if (iter.PcOffset() == pc_offset) {
       return iter.TokenPos();
-    } else if ((token_pos <= 0) && (iter.PcOffset() > pc_offset)) {
+    } else if (!token_pos.IsReal() && (iter.PcOffset() > pc_offset)) {
       token_pos = iter.TokenPos();
     }
   }
   return token_pos;
 }
 
 
 void SimulatorDebugger::PrintDartFrame(uword pc, uword fp, uword sp,
                                        const Function& function,
-                                       intptr_t token_pos,
+                                       TokenPosition token_pos,
                                        bool is_optimized,
                                        bool is_inlined) {
   const Script& script = Script::Handle(function.script());
   const String& func_name = String::Handle(function.QualifiedUserVisibleName());
   const String& url = String::Handle(script.url());
   intptr_t line = -1;
   intptr_t column = -1;
-  if (token_pos >= 0) {
+  if (token_pos.IsReal()) {
     script.GetTokenLocation(token_pos, &line, &column);
   }
   OS::Print("pc=0x%" Px " fp=0x%" Px " sp=0x%" Px " %s%s (%s:%" Pd
             ":%" Pd ")\n",
             pc, fp, sp,
             is_optimized ? (is_inlined ? "inlined " : "optimized ") : "",
             func_name.ToCString(),
             url.ToCString(),
             line, column);
 }
@@ skipping 3251 matching lines @@
   set_register(NULL, kExceptionObjectReg, bit_cast<int64_t>(raw_exception));
   set_register(NULL, kStackTraceObjectReg, bit_cast<int64_t>(raw_stacktrace));
   buf->Longjmp();
 }
 
 }  // namespace dart
 
 #endif  // !defined(USING_SIMULATOR)
 
 #endif  // defined TARGET_ARCH_ARM64