// // Check the macro follow sets (see corresponding rpass test). #![allow(unused_macros)] // FOLLOW(pat) = {FatArrow, Comma, Eq, Or, Ident(if), Ident(in)} macro_rules! follow_pat { ($p:pat ()) => {}; //~ERROR `$p:pat` is followed by `(` ($p:pat []) => {}; //~ERROR `$p:pat` is followed by `[` ($p:pat {}) => {}; //~ERROR `$p:pat` is followed by `{` ($p:pat :) => {}; //~ERROR `$p:pat` is followed by `:` ($p:pat >) => {}; //~ERROR `$p:pat` is followed by `>` ($p:pat +) => {}; //~ERROR `$p:pat` is followed by `+` ($p:pat ident) => {}; //~ERROR `$p:pat` is followed by `ident` ($p:pat $q:pat) => {}; //~ERROR `$p:pat` is followed by `$q:pat` ($p:pat $e:expr) => {}; //~ERROR `$p:pat` is followed by `$e:expr` ($p:pat $t:ty) => {}; //~ERROR `$p:pat` is followed by `$t:ty` ($p:pat $s:stmt) => {}; //~ERROR `$p:pat` is followed by `$s:stmt` ($p:pat $q:path) => {}; //~ERROR `$p:pat` is followed by `$q:path` ($p:pat $b:block) => {}; //~ERROR `$p:pat` is followed by `$b:block` ($p:pat $i:ident) => {}; //~ERROR `$p:pat` is followed by `$i:ident` ($p:pat $t:tt) => {}; //~ERROR `$p:pat` is followed by `$t:tt` ($p:pat $i:item) => {}; //~ERROR `$p:pat` is followed by `$i:item` ($p:pat $m:meta) => {}; //~ERROR `$p:pat` is followed by `$m:meta` } // FOLLOW(expr) = {FatArrow, Comma, Semicolon} macro_rules! follow_expr { ($e:expr ()) => {}; //~ERROR `$e:expr` is followed by `(` ($e:expr []) => {}; //~ERROR `$e:expr` is followed by `[` ($e:expr {}) => {}; //~ERROR `$e:expr` is followed by `{` ($e:expr =) => {}; //~ERROR `$e:expr` is followed by `=` ($e:expr |) => {}; //~ERROR `$e:expr` is followed by `|` ($e:expr :) => {}; //~ERROR `$e:expr` is followed by `:` ($e:expr >) => {}; //~ERROR `$e:expr` is followed by `>` ($e:expr +) => {}; //~ERROR `$e:expr` is followed by `+` ($e:expr ident) => {}; //~ERROR `$e:expr` is followed by `ident` ($e:expr if) => {}; //~ERROR `$e:expr` is followed by `if` ($e:expr in) => {}; //~ERROR `$e:expr` is followed by `in` ($e:expr $p:pat) => {}; //~ERROR `$e:expr` is followed by `$p:pat` ($e:expr $f:expr) => {}; //~ERROR `$e:expr` is followed by `$f:expr` ($e:expr $t:ty) => {}; //~ERROR `$e:expr` is followed by `$t:ty` ($e:expr $s:stmt) => {}; //~ERROR `$e:expr` is followed by `$s:stmt` ($e:expr $p:path) => {}; //~ERROR `$e:expr` is followed by `$p:path` ($e:expr $b:block) => {}; //~ERROR `$e:expr` is followed by `$b:block` ($e:expr $i:ident) => {}; //~ERROR `$e:expr` is followed by `$i:ident` ($e:expr $t:tt) => {}; //~ERROR `$e:expr` is followed by `$t:tt` ($e:expr $i:item) => {}; //~ERROR `$e:expr` is followed by `$i:item` ($e:expr $m:meta) => {}; //~ERROR `$e:expr` is followed by `$m:meta` } // FOLLOW(ty) = {OpenDelim(Brace), Comma, FatArrow, Colon, Eq, Gt, Semi, Or, // Ident(as), Ident(where), OpenDelim(Bracket), Nonterminal(Block)} macro_rules! follow_ty { ($t:ty ()) => {}; //~ERROR `$t:ty` is followed by `(` ($t:ty []) => {}; // ok (RFC 1462) ($t:ty +) => {}; //~ERROR `$t:ty` is followed by `+` ($t:ty ident) => {}; //~ERROR `$t:ty` is followed by `ident` ($t:ty if) => {}; //~ERROR `$t:ty` is followed by `if` ($t:ty $p:pat) => {}; //~ERROR `$t:ty` is followed by `$p:pat` ($t:ty $e:expr) => {}; //~ERROR `$t:ty` is followed by `$e:expr` ($t:ty $r:ty) => {}; //~ERROR `$t:ty` is followed by `$r:ty` ($t:ty $s:stmt) => {}; //~ERROR `$t:ty` is followed by `$s:stmt` ($t:ty $p:path) => {}; //~ERROR `$t:ty` is followed by `$p:path` ($t:ty $b:block) => {}; // ok (RFC 1494) ($t:ty $i:ident) => {}; //~ERROR `$t:ty` is followed by `$i:ident` ($t:ty $r:tt) => {}; //~ERROR `$t:ty` is followed by `$r:tt` ($t:ty $i:item) => {}; //~ERROR `$t:ty` is followed by `$i:item` ($t:ty $m:meta) => {}; //~ERROR `$t:ty` is followed by `$m:meta` } // FOLLOW(stmt) = FOLLOW(expr) macro_rules! follow_stmt { ($s:stmt ()) => {}; //~ERROR `$s:stmt` is followed by `(` ($s:stmt []) => {}; //~ERROR `$s:stmt` is followed by `[` ($s:stmt {}) => {}; //~ERROR `$s:stmt` is followed by `{` ($s:stmt =) => {}; //~ERROR `$s:stmt` is followed by `=` ($s:stmt |) => {}; //~ERROR `$s:stmt` is followed by `|` ($s:stmt :) => {}; //~ERROR `$s:stmt` is followed by `:` ($s:stmt >) => {}; //~ERROR `$s:stmt` is followed by `>` ($s:stmt +) => {}; //~ERROR `$s:stmt` is followed by `+` ($s:stmt ident) => {}; //~ERROR `$s:stmt` is followed by `ident` ($s:stmt if) => {}; //~ERROR `$s:stmt` is followed by `if` ($s:stmt in) => {}; //~ERROR `$s:stmt` is followed by `in` ($s:stmt $p:pat) => {}; //~ERROR `$s:stmt` is followed by `$p:pat` ($s:stmt $e:expr) => {}; //~ERROR `$s:stmt` is followed by `$e:expr` ($s:stmt $t:ty) => {}; //~ERROR `$s:stmt` is followed by `$t:ty` ($s:stmt $t:stmt) => {}; //~ERROR `$s:stmt` is followed by `$t:stmt` ($s:stmt $p:path) => {}; //~ERROR `$s:stmt` is followed by `$p:path` ($s:stmt $b:block) => {}; //~ERROR `$s:stmt` is followed by `$b:block` ($s:stmt $i:ident) => {}; //~ERROR `$s:stmt` is followed by `$i:ident` ($s:stmt $t:tt) => {}; //~ERROR `$s:stmt` is followed by `$t:tt` ($s:stmt $i:item) => {}; //~ERROR `$s:stmt` is followed by `$i:item` ($s:stmt $m:meta) => {}; //~ERROR `$s:stmt` is followed by `$m:meta` } // FOLLOW(path) = FOLLOW(ty) macro_rules! follow_path { ($p:path ()) => {}; //~ERROR `$p:path` is followed by `(` ($p:path []) => {}; // ok (RFC 1462) ($p:path +) => {}; //~ERROR `$p:path` is followed by `+` ($p:path ident) => {}; //~ERROR `$p:path` is followed by `ident` ($p:path if) => {}; //~ERROR `$p:path` is followed by `if` ($p:path $q:pat) => {}; //~ERROR `$p:path` is followed by `$q:pat` ($p:path $e:expr) => {}; //~ERROR `$p:path` is followed by `$e:expr` ($p:path $t:ty) => {}; //~ERROR `$p:path` is followed by `$t:ty` ($p:path $s:stmt) => {}; //~ERROR `$p:path` is followed by `$s:stmt` ($p:path $q:path) => {}; //~ERROR `$p:path` is followed by `$q:path` ($p:path $b:block) => {}; // ok (RFC 1494) ($p:path $i:ident) => {}; //~ERROR `$p:path` is followed by `$i:ident` ($p:path $t:tt) => {}; //~ERROR `$p:path` is followed by `$t:tt` ($p:path $i:item) => {}; //~ERROR `$p:path` is followed by `$i:item` ($p:path $m:meta) => {}; //~ERROR `$p:path` is followed by `$m:meta` } // FOLLOW(block) = any token // FOLLOW(ident) = any token fn main() {}