refactor file flags into enums

1 files changed, 16 insertions, 4 deletions

diff --git a/src/support/file.h b/src/support/file.h
index 8d92b5ab4..01c7a8546 100644
--- a/src/support/file.h
+++ b/src/support/file.h
@@ -28,16 +28,28 @@
 #include <vector>
 
 namespace wasm {
+
+namespace Flags {
+  enum BinaryOption {
+    Binary,
+    Text
+  };
+  enum DebugOption {
+    Debug,
+    Release
+  };
+}
+
 template <typename T>
-T read_file(const std::string &filename, bool binary, bool debug);
+T read_file(const std::string &filename, Flags::BinaryOption binary, Flags::DebugOption debug);
 // Declare the valid explicit specializations.
-extern template std::string read_file<>(const std::string &, bool, bool);
-extern template std::vector<char> read_file<>(const std::string &, bool, bool);
+extern template std::string read_file<>(const std::string &, Flags::BinaryOption, Flags::DebugOption);
+extern template std::vector<char> read_file<>(const std::string &, Flags::BinaryOption, Flags::DebugOption);
 
 class Output {
  public:
   // An empty filename will open stdout instead.
-  Output(const std::string &filename, bool binary, bool debug);
+  Output(const std::string &filename, Flags::BinaryOption binary, Flags::DebugOption debug);
   ~Output() = default;
   template <typename T>
   std::ostream &operator<<(const T &v) {