Remove unused MatchTree from Decoder::RepeatFallback

Author: archaephyrryx

src/lib.rs

@@ -779,7 +779,7 @@ enum Decoder {
     Record(Vec<(Cow<'static, str>, Decoder)>),
     While(MatchTree, Box<Decoder>),
     Until(MatchTree, Box<Decoder>),
-    RepeatFallback(MatchTree, Box<Decoder>, Box<Decoder>),
+    RepeatFallback(Box<Decoder>, Box<Decoder>),
     RepeatCount(Expr, Box<Decoder>),
     RepeatUntilLast(Expr, Box<Decoder>),
     RepeatUntilSeq(Expr, Box<Decoder>),
@@ -2385,13 +2385,7 @@ impl Decoder {
                     Rc::new(Next::Repeat(wide, next.clone())),
                 )?);
 
-                if let Some(tree) =
-                    MatchTree::build(compiler.module, std::slice::from_ref(format), next)
-                {
-                    Ok(Decoder::RepeatFallback(tree, dnarrow, dwide))
-                } else {
-                    Err(format!("canot build match treee for {:?}", format))
-                }
+                Ok(Decoder::RepeatFallback(dnarrow, dwide))
             }
             Format::Repeat1(a) => {
                 if a.is_nullable(compiler.module) {
@@ -2604,7 +2598,7 @@ impl Decoder {
                 }
                 Ok((Value::Seq(v), input))
             }
-            Decoder::RepeatFallback(_tree, subset, superset) => {
+            Decoder::RepeatFallback(subset, superset) => {
                 let mut accum = Vec::new();
                 let mut incr_input = input;