Index: runtime/vm/zone_text_buffer.h |
diff --git a/runtime/vm/zone_text_buffer.h b/runtime/vm/zone_text_buffer.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..8d6ae1154065e66180f6c7d316ca0c55f3dcf65b |
--- /dev/null |
+++ b/runtime/vm/zone_text_buffer.h |
@@ -0,0 +1,38 @@ |
+// Copyright (c) 2017, 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. |
+ |
+#ifndef RUNTIME_VM_ZONE_TEXT_BUFFER_H_ |
+#define RUNTIME_VM_ZONE_TEXT_BUFFER_H_ |
+ |
+#include "vm/allocation.h" |
+#include "vm/globals.h" |
+ |
+namespace dart { |
+ |
+class Zone; |
+ |
+// TextBuffer maintains a dynamic character buffer with a printf-style way to |
+// append text. |
+class ZoneTextBuffer : ValueObject { |
+ public: |
+ ZoneTextBuffer(Zone* zone, intptr_t initial_capacity); |
+ ~ZoneTextBuffer() {} |
+ |
+ intptr_t Printf(const char* format, ...) PRINTF_ATTRIBUTE(2, 3); |
+ void AddString(const char* s); |
+ |
+ char* buffer() { return buffer_; } |
+ intptr_t length() { return length_; } |
+ |
+ private: |
+ void EnsureCapacity(intptr_t len); |
+ Zone* zone_; |
+ char* buffer_; |
+ intptr_t length_; |
+ intptr_t capacity_; |
+}; |
+ |
+} // namespace dart |
+ |
+#endif // RUNTIME_VM_ZONE_TEXT_BUFFER_H_ |