123 lines
7.1 KiB
Rust
123 lines
7.1 KiB
Rust
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//
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// Check the macro follow sets (see corresponding rpass test).
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// FOLLOW(pat) = {FatArrow, Comma, Eq, Or, Ident(if), Ident(in)}
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macro_rules! follow_pat {
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($p:pat ()) => {}; //~WARN `$p:pat` is followed by `(`
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($p:pat []) => {}; //~WARN `$p:pat` is followed by `[`
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($p:pat {}) => {}; //~WARN `$p:pat` is followed by `{`
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($p:pat :) => {}; //~ERROR `$p:pat` is followed by `:`
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($p:pat >) => {}; //~ERROR `$p:pat` is followed by `>`
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($p:pat +) => {}; //~ERROR `$p:pat` is followed by `+`
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($p:pat ident) => {}; //~ERROR `$p:pat` is followed by `ident`
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($p:pat $p:pat) => {}; //~ERROR `$p:pat` is followed by `$p:pat`
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($p:pat $e:expr) => {}; //~ERROR `$p:pat` is followed by `$e:expr`
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($p:pat $t:ty) => {}; //~ERROR `$p:pat` is followed by `$t:ty`
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($p:pat $s:stmt) => {}; //~ERROR `$p:pat` is followed by `$s:stmt`
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($p:pat $p:path) => {}; //~ERROR `$p:pat` is followed by `$p:path`
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($p:pat $b:block) => {}; //~ERROR `$p:pat` is followed by `$b:block`
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($p:pat $i:ident) => {}; //~ERROR `$p:pat` is followed by `$i:ident`
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($p:pat $t:tt) => {}; //~ERROR `$p:pat` is followed by `$t:tt`
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($p:pat $i:item) => {}; //~ERROR `$p:pat` is followed by `$i:item`
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($p:pat $m:meta) => {}; //~ERROR `$p:pat` is followed by `$m:meta`
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}
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// FOLLOW(expr) = {FatArrow, Comma, Semicolon}
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macro_rules! follow_expr {
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($e:expr ()) => {}; //~WARN `$e:expr` is followed by `(`
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($e:expr []) => {}; //~WARN `$e:expr` is followed by `[`
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($e:expr {}) => {}; //~WARN `$e:expr` is followed by `{`
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($e:expr =) => {}; //~ERROR `$e:expr` is followed by `=`
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($e:expr |) => {}; //~ERROR `$e:expr` is followed by `|`
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($e:expr :) => {}; //~ERROR `$e:expr` is followed by `:`
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($e:expr >) => {}; //~ERROR `$e:expr` is followed by `>`
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($e:expr +) => {}; //~ERROR `$e:expr` is followed by `+`
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($e:expr ident) => {}; //~ERROR `$e:expr` is followed by `ident`
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($e:expr if) => {}; //~ERROR `$e:expr` is followed by `if`
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($e:expr in) => {}; //~ERROR `$e:expr` is followed by `in`
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($e:expr $p:pat) => {}; //~ERROR `$e:expr` is followed by `$p:pat`
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($e:expr $e:expr) => {}; //~ERROR `$e:expr` is followed by `$e:expr`
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($e:expr $t:ty) => {}; //~ERROR `$e:expr` is followed by `$t:ty`
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($e:expr $s:stmt) => {}; //~ERROR `$e:expr` is followed by `$s:stmt`
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($e:expr $p:path) => {}; //~ERROR `$e:expr` is followed by `$p:path`
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($e:expr $b:block) => {}; //~ERROR `$e:expr` is followed by `$b:block`
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($e:expr $i:ident) => {}; //~ERROR `$e:expr` is followed by `$i:ident`
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($e:expr $t:tt) => {}; //~ERROR `$e:expr` is followed by `$t:tt`
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($e:expr $i:item) => {}; //~ERROR `$e:expr` is followed by `$i:item`
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($e:expr $m:meta) => {}; //~ERROR `$e:expr` is followed by `$m:meta`
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}
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// FOLLOW(ty) = {OpenDelim(Brace), Comma, FatArrow, Colon, Eq, Gt, Semi, Or,
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// Ident(as), Ident(where), OpenDelim(Bracket)}
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macro_rules! follow_ty {
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($t:ty ()) => {}; //~WARN `$t:ty` is followed by `(`
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($t:ty []) => {}; // ok (RFC 1462)
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($t:ty +) => {}; //~ERROR `$t:ty` is followed by `+`
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($t:ty ident) => {}; //~ERROR `$t:ty` is followed by `ident`
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($t:ty if) => {}; //~ERROR `$t:ty` is followed by `if`
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($t:ty $p:pat) => {}; //~ERROR `$t:ty` is followed by `$p:pat`
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($t:ty $e:expr) => {}; //~ERROR `$t:ty` is followed by `$e:expr`
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($t:ty $t:ty) => {}; //~ERROR `$t:ty` is followed by `$t:ty`
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($t:ty $s:stmt) => {}; //~ERROR `$t:ty` is followed by `$s:stmt`
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($t:ty $p:path) => {}; //~ERROR `$t:ty` is followed by `$p:path`
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($t:ty $b:block) => {}; //~ERROR `$t:ty` is followed by `$b:block`
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($t:ty $i:ident) => {}; //~ERROR `$t:ty` is followed by `$i:ident`
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($t:ty $t:tt) => {}; //~ERROR `$t:ty` is followed by `$t:tt`
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($t:ty $i:item) => {}; //~ERROR `$t:ty` is followed by `$i:item`
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($t:ty $m:meta) => {}; //~ERROR `$t:ty` is followed by `$m:meta`
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}
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// FOLLOW(stmt) = FOLLOW(expr)
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macro_rules! follow_stmt {
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($s:stmt ()) => {}; //~WARN `$s:stmt` is followed by `(`
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($s:stmt []) => {}; //~WARN `$s:stmt` is followed by `[`
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($s:stmt {}) => {}; //~WARN `$s:stmt` is followed by `{`
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($s:stmt =) => {}; //~ERROR `$s:stmt` is followed by `=`
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($s:stmt |) => {}; //~ERROR `$s:stmt` is followed by `|`
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($s:stmt :) => {}; //~ERROR `$s:stmt` is followed by `:`
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($s:stmt >) => {}; //~ERROR `$s:stmt` is followed by `>`
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($s:stmt +) => {}; //~ERROR `$s:stmt` is followed by `+`
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($s:stmt ident) => {}; //~ERROR `$s:stmt` is followed by `ident`
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($s:stmt if) => {}; //~ERROR `$s:stmt` is followed by `if`
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($s:stmt in) => {}; //~ERROR `$s:stmt` is followed by `in`
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($s:stmt $p:pat) => {}; //~ERROR `$s:stmt` is followed by `$p:pat`
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($s:stmt $e:expr) => {}; //~ERROR `$s:stmt` is followed by `$e:expr`
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($s:stmt $t:ty) => {}; //~ERROR `$s:stmt` is followed by `$t:ty`
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($s:stmt $s:stmt) => {}; //~ERROR `$s:stmt` is followed by `$s:stmt`
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($s:stmt $p:path) => {}; //~ERROR `$s:stmt` is followed by `$p:path`
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($s:stmt $b:block) => {}; //~ERROR `$s:stmt` is followed by `$b:block`
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($s:stmt $i:ident) => {}; //~ERROR `$s:stmt` is followed by `$i:ident`
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($s:stmt $t:tt) => {}; //~ERROR `$s:stmt` is followed by `$t:tt`
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($s:stmt $i:item) => {}; //~ERROR `$s:stmt` is followed by `$i:item`
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($s:stmt $m:meta) => {}; //~ERROR `$s:stmt` is followed by `$m:meta`
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}
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// FOLLOW(path) = FOLLOW(ty)
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macro_rules! follow_path {
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($p:path ()) => {}; //~WARN `$p:path` is followed by `(`
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($p:path []) => {}; // ok (RFC 1462)
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($p:path +) => {}; //~ERROR `$p:path` is followed by `+`
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($p:path ident) => {}; //~ERROR `$p:path` is followed by `ident`
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($p:path if) => {}; //~ERROR `$p:path` is followed by `if`
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($p:path $p:pat) => {}; //~ERROR `$p:path` is followed by `$p:pat`
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($p:path $e:expr) => {}; //~ERROR `$p:path` is followed by `$e:expr`
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($p:path $t:ty) => {}; //~ERROR `$p:path` is followed by `$t:ty`
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($p:path $s:stmt) => {}; //~ERROR `$p:path` is followed by `$s:stmt`
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($p:path $p:path) => {}; //~ERROR `$p:path` is followed by `$p:path`
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($p:path $b:block) => {}; //~ERROR `$p:path` is followed by `$b:block`
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($p:path $i:ident) => {}; //~ERROR `$p:path` is followed by `$i:ident`
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($p:path $t:tt) => {}; //~ERROR `$p:path` is followed by `$t:tt`
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($p:path $i:item) => {}; //~ERROR `$p:path` is followed by `$i:item`
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($p:path $m:meta) => {}; //~ERROR `$p:path` is followed by `$m:meta`
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}
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// FOLLOW(block) = any token
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// FOLLOW(ident) = any token
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fn main() {}
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