gccrs: libproc_macro: Remove has_suffix attribute

This variable was redundant with the empty string representation and
may have lead to desync between both.

libgrust/ChangeLog:

	* libproc_macro/literal.h: Remove has_suffix member
	attribute from Literal.
	* libproc_macro/literal.cc: Update constructors.
	* libproc_macro/rust/bridge/literal.rs: Remove
	has_suffix attribute from Literal.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

3 files changed, 19 insertions, 33 deletions

diff --git a/libgrust/libproc_macro/literal.cc b/libgrust/libproc_macro/literal.cc
index e3d171f..af1632b 100644
--- a/libgrust/libproc_macro/literal.cc
+++ b/libgrust/libproc_macro/literal.cc
@@ -46,8 +46,7 @@ Literal::drop (Literal *lit)
 Literal
 Literal::clone () const
 {
-  return {this->kind, this->text.clone (), this->has_suffix,
-	  this->suffix.clone ()};
+  return {this->kind, this->text.clone (), this->suffix.clone ()};
 }
 
 Literal
@@ -56,7 +55,7 @@ Literal::make_literal (LitKind kind, const std::string &text,
 {
   auto ffi_text = FFIString::make_ffistring (text);
   auto ffi_suffix = FFIString::make_ffistring (suffix);
-  return {kind, ffi_text, suffix != "", ffi_suffix};
+  return {kind, ffi_text, ffi_suffix};
 }
 
 Literal
@@ -64,7 +63,7 @@ Literal::make_u8 (std::uint8_t value, bool suffixed)
 {
   auto text = FFIString::make_ffistring (std::to_string (value));
   auto suffix = FFIString::make_ffistring (suffixed ? "u8" : "");
-  return {LitKind::make_integer (), text, suffixed, suffix};
+  return {LitKind::make_integer (), text, suffix};
 }
 
 Literal
@@ -72,7 +71,7 @@ Literal::make_u16 (std::uint16_t value, bool suffixed)
 {
   auto text = FFIString::make_ffistring (std::to_string (value));
   auto suffix = FFIString::make_ffistring (suffixed ? "u16" : "");
-  return {LitKind::make_integer (), text, suffixed, suffix};
+  return {LitKind::make_integer (), text, suffix};
 }
 
 Literal
@@ -80,7 +79,7 @@ Literal::make_u32 (std::uint32_t value, bool suffixed)
 {
   auto text = FFIString::make_ffistring (std::to_string (value));
   auto suffix = FFIString::make_ffistring (suffixed ? "u32" : "");
-  return {LitKind::make_integer (), text, suffixed, suffix};
+  return {LitKind::make_integer (), text, suffix};
 }
 
 Literal
@@ -88,7 +87,7 @@ Literal::make_u64 (std::uint64_t value, bool suffixed)
 {
   auto text = FFIString::make_ffistring (std::to_string (value));
   auto suffix = FFIString::make_ffistring (suffixed ? "u64" : "");
-  return {LitKind::make_integer (), text, suffixed, suffix};
+  return {LitKind::make_integer (), text, suffix};
 }
 
 Literal
@@ -96,7 +95,7 @@ Literal::make_i8 (std::int8_t value, bool suffixed)
 {
   auto text = FFIString::make_ffistring (std::to_string (value));
   auto suffix = FFIString::make_ffistring (suffixed ? "i8" : "");
-  return {LitKind::make_integer (), text, suffixed, suffix};
+  return {LitKind::make_integer (), text, suffix};
 }
 
 Literal
@@ -104,7 +103,7 @@ Literal::make_i16 (std::int16_t value, bool suffixed)
 {
   auto text = FFIString::make_ffistring (std::to_string (value));
   auto suffix = FFIString::make_ffistring (suffixed ? "i16" : "");
-  return {LitKind::make_integer (), text, suffixed, suffix};
+  return {LitKind::make_integer (), text, suffix};
 }
 
 Literal
@@ -112,7 +111,7 @@ Literal::make_i32 (std::int32_t value, bool suffixed)
 {
   auto text = FFIString::make_ffistring (std::to_string (value));
   auto suffix = FFIString::make_ffistring (suffixed ? "i32" : "");
-  return {LitKind::make_integer (), text, suffixed, suffix};
+  return {LitKind::make_integer (), text, suffix};
 }
 
 Literal
@@ -120,7 +119,7 @@ Literal::make_i64 (std::int64_t value, bool suffixed)
 {
   auto text = FFIString::make_ffistring (std::to_string (value));
   auto suffix = FFIString::make_ffistring (suffixed ? "i64" : "");
-  return {LitKind::make_integer (), text, suffixed, suffix};
+  return {LitKind::make_integer (), text, suffix};
 }
 
 Literal
@@ -128,7 +127,7 @@ Literal::make_string (const std::string &str)
 {
   auto text = FFIString::make_ffistring (str);
   auto suffix = FFIString::make_ffistring ("");
-  return {LitKind::make_str (), text, false, suffix};
+  return {LitKind::make_str (), text, suffix};
 }
 
 Literal
@@ -137,7 +136,7 @@ Literal::make_byte_string (const std::vector<std::uint8_t> &vec)
   auto text
     = FFIString::make_ffistring (std::string (vec.cbegin (), vec.cend ()));
   auto suffix = FFIString::make_ffistring ("");
-  return {LitKind::make_byte_str (), text, false, suffix};
+  return {LitKind::make_byte_str (), text, suffix};
 }
 
 Literal
@@ -145,7 +144,7 @@ Literal::make_f32 (float value, bool suffixed)
 {
   auto text = FFIString::make_ffistring (std::to_string (value));
   auto suffix = FFIString::make_ffistring (suffixed ? "f32" : "");
-  return {LitKind::make_float (), text, suffixed, suffix};
+  return {LitKind::make_float (), text, suffix};
 }
 
 Literal
@@ -153,7 +152,7 @@ Literal::make_f64 (double value, bool suffixed)
 {
   auto text = FFIString::make_ffistring (std::to_string (value));
   auto suffix = FFIString::make_ffistring (suffixed ? "f64" : "");
-  return {LitKind::make_float (), text, suffixed, suffix};
+  return {LitKind::make_float (), text, suffix};
 }
 
 Literal
@@ -161,7 +160,7 @@ Literal::make_char (std::uint32_t ch)
 {
   auto text = FFIString::make_ffistring (std::to_string ((char) ch));
   auto suffix = FFIString::make_ffistring ("");
-  return {LitKind::make_char (), text, false, suffix};
+  return {LitKind::make_char (), text, suffix};
 }
 
 Literal
@@ -169,7 +168,7 @@ Literal::make_usize (std::uint64_t value, bool suffixed)
 {
   auto text = FFIString::make_ffistring (std::to_string (value));
   auto suffix = FFIString::make_ffistring (suffixed ? "usize" : "");
-  return {LitKind::make_integer (), text, suffixed, suffix};
+  return {LitKind::make_integer (), text, suffix};
 }
 
 Literal
@@ -177,7 +176,7 @@ Literal::make_isize (std::int64_t value, bool suffixed)
 {
   auto text = FFIString::make_ffistring (std::to_string (value));
   auto suffix = FFIString::make_ffistring (suffixed ? "isize" : "");
-  return {LitKind::make_integer (), text, suffixed, suffix};
+  return {LitKind::make_integer (), text, suffix};
 }
 
 LitKind
diff --git a/libgrust/libproc_macro/literal.h b/libgrust/libproc_macro/literal.h
index fa2df3f..86b1a17 100644
--- a/libgrust/libproc_macro/literal.h
+++ b/libgrust/libproc_macro/literal.h
@@ -69,12 +69,12 @@ struct Literal
 {
   LitKind kind;
   FFIString text;
-  bool has_suffix;
   FFIString suffix;
   // TODO: Add span once done in rust interface
 
 public:
   Literal clone () const;
+  bool has_suffix () const { return suffix.len != 0; };
 
   static Literal make_literal (const LitKind kind, const std::string &text,
 			       const std::string &suffix = "");
diff --git a/libgrust/libproc_macro/rust/bridge/literal.rs b/libgrust/libproc_macro/rust/bridge/literal.rs
index 945311a..1e15012 100644
--- a/libgrust/libproc_macro/rust/bridge/literal.rs
+++ b/libgrust/libproc_macro/rust/bridge/literal.rs
@@ -28,7 +28,6 @@ pub enum LitKind {
 pub struct Literal {
     kind: LitKind,
     text: FFIString,
-    has_suffix: bool,
     suffix: FFIString,
     // FIXME: Add span, cannot add whilst Span remain an empty type
 }
@@ -39,7 +38,6 @@ macro_rules! suffixed_int_literals {
             Literal {
                 kind : LitKind::Integer,
                 text: FFIString::new(&n.to_string()),
-                has_suffix : true,
                 suffix: FFIString::new(stringify!($kind))
             }
         }
@@ -52,7 +50,6 @@ macro_rules! unsuffixed_int_literals {
             Literal {
                 kind : LitKind::Integer,
                 text: FFIString::new(&n.to_string()),
-                has_suffix : false,
                 suffix: FFIString::new("")
             }
         }
@@ -99,7 +96,6 @@ impl Literal {
         Literal {
             kind: LitKind::Float,
             text: FFIString::new(&repr),
-            has_suffix: false,
             suffix: FFIString::new(""),
         }
     }
@@ -108,7 +104,6 @@ impl Literal {
         Literal {
             kind: LitKind::Float,
             text: FFIString::new(&n.to_string()),
-            has_suffix: true,
             suffix: FFIString::new("f32"),
         }
     }
@@ -122,7 +117,6 @@ impl Literal {
         Literal {
             kind: LitKind::Float,
             text: FFIString::new(&repr),
-            has_suffix: false,
             suffix: FFIString::new(""),
         }
     }
@@ -131,7 +125,6 @@ impl Literal {
         Literal {
             kind: LitKind::Float,
             text: FFIString::new(&n.to_string()),
-            has_suffix: true,
             suffix: FFIString::new("f64"),
         }
     }
@@ -140,7 +133,6 @@ impl Literal {
         Literal {
             kind: LitKind::Str,
             text: FFIString::new(string),
-            has_suffix: false,
             suffix: FFIString::new(""),
         }
     }
@@ -149,7 +141,6 @@ impl Literal {
         Literal {
             kind: LitKind::Char,
             text: FFIString::new(&c.to_string()),
-            has_suffix: false,
             suffix: FFIString::new(""),
         }
     }
@@ -158,7 +149,6 @@ impl Literal {
         Literal {
             kind: LitKind::ByteStr,
             text: FFIString::new(&bytes.escape_ascii().to_string()),
-            has_suffix: false,
             suffix: FFIString::new(""),
         }
     }
@@ -217,9 +207,7 @@ impl fmt::Display for Literal {
             _ => f.write_str(text)?,
         }
 
-        if self.has_suffix {
-            f.write_str(&self.suffix.to_string())?;
-        }
+        f.write_str(&self.suffix.to_string())?;
         Ok(())
     }
 }
@@ -232,7 +220,6 @@ impl FromStr for Literal {
         let mut lit = Literal {
             kind: LitKind::Err,
             text: FFIString::new(""),
-            has_suffix: false,
             suffix: FFIString::new(""),
         };
         // TODO: We might want to pass a LexError by reference to retrieve