Replace intptr_t with TokenDescriptor

runtime/lib/errors.cc

 // Copyright (c) 2012, 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 "vm/bootstrap_natives.h"
 #include "vm/exceptions.h"
 #include "vm/object_store.h"
 #include "vm/runtime_entry.h"
 #include "vm/stack_frame.h"
 
 namespace dart {
 
 // Allocate and throw a new AssertionError.
 // Arg0: index of the first token of the failed assertion.
 // Arg1: index of the first token after the failed assertion.
 // Return value: none, throws an exception.
 DEFINE_NATIVE_ENTRY(AssertionError_throwNew, 2) {
   // No need to type check the arguments. This function can only be called
   // internally from the VM.
-  intptr_t assertion_start =
-      Smi::CheckedHandle(arguments->NativeArgAt(0)).Value();
-  intptr_t assertion_end =
-      Smi::CheckedHandle(arguments->NativeArgAt(1)).Value();
+  const TokenDescriptor assertion_start =
+      TokenDescriptor(Smi::CheckedHandle(arguments->NativeArgAt(0)).Value());
+  const TokenDescriptor assertion_end =
+      TokenDescriptor(Smi::CheckedHandle(arguments->NativeArgAt(1)).Value());
 
   const Array& args = Array::Handle(Array::New(4));
 
   DartFrameIterator iterator;
   iterator.NextFrame();  // Skip native call.
   const Script& script = Script::Handle(Exceptions::GetCallerScript(&iterator));
 
   // Initialize argument 'failed_assertion' with source snippet.
   intptr_t from_line, from_column;
   script.GetTokenLocation(assertion_start, &from_line, &from_column);
@@ skipping 19 matching lines @@
 // Allocate and throw a new TypeError or CastError.
 // Arg0: index of the token of the failed type check.
 // Arg1: src value.
 // Arg2: dst type name.
 // Arg3: dst name.
 // Arg4: type error message.
 // Return value: none, throws an exception.
 DEFINE_NATIVE_ENTRY(TypeError_throwNew, 5) {
   // No need to type check the arguments. This function can only be called
   // internally from the VM.
-  intptr_t location = Smi::CheckedHandle(arguments->NativeArgAt(0)).Value();
+  const TokenDescriptor location =
+      TokenDescriptor(Smi::CheckedHandle(arguments->NativeArgAt(0)).Value());
   const Instance& src_value =
       Instance::CheckedHandle(arguments->NativeArgAt(1));
   const String& dst_type_name =
       String::CheckedHandle(arguments->NativeArgAt(2));
   const String& dst_name = String::CheckedHandle(arguments->NativeArgAt(3));
   const String& error_msg = String::CheckedHandle(arguments->NativeArgAt(4));
   const String& src_type_name = String::Handle(
       AbstractType::Handle(src_value.GetType()).UserVisibleName());
   Exceptions::CreateAndThrowTypeError(location, src_type_name,
                                       dst_type_name, dst_name, error_msg);
   UNREACHABLE();
   return Object::null();
 }
 
 
 // Allocate and throw a new FallThroughError.
 // Arg0: index of the case clause token into which we fall through.
 // Return value: none, throws an exception.
 DEFINE_NATIVE_ENTRY(FallThroughError_throwNew, 1) {
   GET_NON_NULL_NATIVE_ARGUMENT(Smi, smi_pos, arguments->NativeArgAt(0));
-  intptr_t fallthrough_pos = smi_pos.Value();
+  TokenDescriptor fallthrough_pos = TokenDescriptor(smi_pos.Value());
 
   const Array& args = Array::Handle(Array::New(2));
 
   // Initialize 'url' and 'line' arguments.
   DartFrameIterator iterator;
   iterator.NextFrame();  // Skip native call.
   const Script& script = Script::Handle(Exceptions::GetCallerScript(&iterator));
   args.SetAt(0, String::Handle(script.url()));
   intptr_t line;
   script.GetTokenLocation(fallthrough_pos, &line, NULL);
   args.SetAt(1, Smi::Handle(Smi::New(line)));
 
   Exceptions::ThrowByType(Exceptions::kFallThrough, args);
   UNREACHABLE();
   return Object::null();
 }
 
 
 // Allocate and throw a new AbstractClassInstantiationError.
 // Arg0: Token position of allocation statement.
 // Arg1: class name of the abstract class that cannot be instantiated.
 // Return value: none, throws an exception.
 DEFINE_NATIVE_ENTRY(AbstractClassInstantiationError_throwNew, 2) {
   GET_NON_NULL_NATIVE_ARGUMENT(Smi, smi_pos, arguments->NativeArgAt(0));
   GET_NON_NULL_NATIVE_ARGUMENT(String, class_name, arguments->NativeArgAt(1));
-  intptr_t error_pos = smi_pos.Value();
+  TokenDescriptor error_pos = TokenDescriptor(smi_pos.Value());
 
   const Array& args = Array::Handle(Array::New(3));
 
   // Initialize 'className', 'url' and 'line' arguments.
   DartFrameIterator iterator;
   iterator.NextFrame();  // Skip native call.
   const Script& script = Script::Handle(Exceptions::GetCallerScript(&iterator));
   args.SetAt(0, class_name);
   args.SetAt(1, String::Handle(script.url()));
   intptr_t line;
   script.GetTokenLocation(error_pos, &line, NULL);
   args.SetAt(2, Smi::Handle(Smi::New(line)));
 
   Exceptions::ThrowByType(Exceptions::kAbstractClassInstantiation, args);
   UNREACHABLE();
   return Object::null();
 }
 
 // Rethrow an error with a stacktrace.
 DEFINE_NATIVE_ENTRY(Async_rethrow, 2) {
   GET_NON_NULL_NATIVE_ARGUMENT(Instance, error, arguments->NativeArgAt(0));
   GET_NON_NULL_NATIVE_ARGUMENT(Instance, stacktrace, arguments->NativeArgAt(1));
   Exceptions::ReThrow(thread, error, stacktrace);
   return Object::null();
 }
 
 }  // namespace dart