Index: runtime/lib/integers.cc |
=================================================================== |
--- runtime/lib/integers.cc (revision 14972) |
+++ runtime/lib/integers.cc (working copy) |
@@ -9,6 +9,7 @@ |
#include "vm/exceptions.h" |
#include "vm/native_entry.h" |
#include "vm/object.h" |
+#include "vm/symbols.h" |
namespace dart { |
@@ -172,6 +173,32 @@ |
} |
+DEFINE_NATIVE_ENTRY(Integer_parse, 1) { |
+ GET_NATIVE_ARGUMENT(String, value, arguments->NativeArgAt(0)); |
+ const String& dummy_key = String::Handle(Symbols::Empty()); |
+ Scanner scanner(value, dummy_key); |
+ const Scanner::GrowableTokenStream& tokens = scanner.GetStream(); |
+ String* int_string; |
+ bool is_positive; |
+ if (Scanner::IsValidLiteral(tokens, |
+ Token::kINTEGER, |
+ &is_positive, |
+ &int_string)) { |
+ if (is_positive) { |
+ return Integer::New(*int_string); |
+ } |
+ String& temp = String::Handle(); |
+ temp = String::Concat(String::Handle(Symbols::New("-")), *int_string); |
+ return Integer::New(temp); |
+ } |
+ |
+ GrowableArray<const Object*> args; |
+ args.Add(&value); |
+ Exceptions::ThrowByType(Exceptions::kFormat, args); |
+ return Object::null(); |
+} |
+ |
+ |
static RawInteger* ShiftOperationHelper(Token::Kind kind, |
const Integer& value, |
const Smi& amount) { |