Selectively allow unused fields and trait members for rust-1.83 (#470)

Co-authored-by: Trevor Elliott <trevor@stripe.com>
Co-authored-by: Fable Tales <penelope@hey.com>

Author: 3 people

librubyfmt/src/parser_state.rs

@@ -124,12 +124,17 @@ where
     fn current_formatting_context(&self) -> FormattingContext;
     fn is_absorbing_indents(&self) -> bool;
     fn has_comments_in_line(&self, start_line: LineNumber, end_line: LineNumber) -> bool;
+
+    #[allow(unused)]
     fn current_line_number(&self) -> u64;
 
     // blocks
+    #[allow(unused)]
     fn start_indent(&mut self);
     fn start_indent_for_call_chain(&mut self);
+    #[allow(unused)]
     fn end_indent_for_call_chain(&mut self);
+    #[allow(unused)]
     fn end_indent(&mut self);
     fn with_formatting_context(&mut self, fc: FormattingContext, f: RenderFunc);
     fn new_scope(&mut self, f: RenderFunc);
@@ -153,6 +158,7 @@ where
     fn with_suppress_comments(&mut self, suppress: bool, f: RenderFunc);
     fn will_render_as_multiline(&mut self, f: RenderFunc) -> bool;
 
+    #[allow(unused)]
     fn will_render_beyond_max_line_length(&mut self, f: RenderFunc) -> bool;
 
     // stuff to remove from this enum

librubyfmt/src/ripper_tree_types.rs

@@ -1259,6 +1259,7 @@ impl Params {
 //   we have for some reason.
 #[derive(RipperDeserialize, Debug, Clone)]
 pub enum RestParamOr0OrExcessedComma {
+    #[allow(unused)]
     Zero(i64),
     RestParam(RestParam),
     ExcessedComma(ExcessedComma),
@@ -1290,6 +1291,7 @@ impl Params {
 #[allow(clippy::large_enum_variant)]
 pub enum ExpressionOrFalse {
     Expression(Expression),
+    #[allow(unused)]
     False(bool),
 }
 
@@ -1312,6 +1314,7 @@ def_tag!(blockarg_tag, "blockarg");
 pub struct BlockArg(pub blockarg_tag, pub Option<Ident>);
 
 #[derive(Deserialize, Debug, Clone)]
+#[allow(unused)]
 pub struct LineCol(pub LineNumber, pub u64);
 
 #[derive(Deserialize, Debug, Clone, Eq, PartialEq)]
@@ -1415,16 +1418,19 @@ pub enum ArgNode {
     Exprs(Vec<Expression>),
     Const(Const),
     Ident(Ident),
+    #[allow(unused)]
     Null(Option<String>),
 }
 
 def_tag!(arg_paren_tag, "arg_paren");
 #[derive(Deserialize, Debug, Clone)]
+#[allow(unused)]
 pub struct ArgParen(pub arg_paren_tag, pub Box<ArgNode>, pub StartEnd);
 
 // See: https://dev.to/penelope_zone/understanding-ruby-s-block-proc-parsing-4a89
 #[derive(RipperDeserialize, Debug, Clone)]
 pub enum ToProcExpr {
+    #[allow(unused)]
     NotPresent(bool),
     Present(Box<Expression>),
 }
@@ -1436,12 +1442,13 @@ pub struct ArgsAddBlock(
     pub args_add_block_tag,
     pub ArgsAddBlockInner,
     pub Option<ToProcExpr>,
-    pub StartEnd,
+    #[allow(unused)] pub StartEnd,
 );
 
 #[derive(RipperDeserialize, Debug, Clone)]
 pub enum AABParen {
     Paren((paren_tag, Box<Expression>)),
+    #[allow(unused)]
     EmptyParen((paren_tag, bool)),
     Expression(Box<Expression>),
 }
@@ -1945,6 +1952,7 @@ impl DotTypeOrOp {
 
 def_tag!(period_tag, "@period");
 #[derive(Deserialize, Debug, Clone)]
+#[allow(unused)]
 pub struct Period(pub period_tag, pub String, pub LineCol);
 
 def_tag!(equals_tag, "==");
@@ -2103,7 +2111,7 @@ def_tag!(defs_tag, "defs");
 pub struct Defs(
     pub defs_tag,
     pub Singleton,
-    pub DotOrColon,
+    #[allow(unused)] pub DotOrColon,
     pub IdentOrOpOrKeywordOrConst,
     pub ParenOrParams,
     pub Box<DefBodyStmt>,
@@ -2112,7 +2120,9 @@ pub struct Defs(
 
 #[derive(RipperDeserialize, Debug, Clone)]
 pub enum IdentOrKw {
+    #[allow(unused)]
     Ident(Ident),
+    #[allow(unused)]
     Kw(Kw),
 }
 
@@ -2126,7 +2136,9 @@ pub enum Singleton {
 // can only occur in defs, Op is always `::`
 #[derive(RipperDeserialize, Debug, Clone)]
 pub enum DotOrColon {
+    #[allow(unused)]
     Period(Period),
+    #[allow(unused)]
     Op(Operator),
 }
 
@@ -2292,7 +2304,9 @@ impl Block {
 //    variables are present
 #[derive(RipperDeserialize, Debug, Clone)]
 pub enum BlockLocalVariables {
+    #[allow(unused)]
     EmptyBecauseParamsWerePresent(bool),
+    #[allow(unused)]
     NilBecauseParamsWereNotPresent(Option<()>),
     Present(Vec<Ident>),
 }