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[lexer] Add fail() constructor to StateResult

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This commit is contained in:
Eryn Wells 2018-09-01 22:21:21 -07:00
parent d69c3dbc31
commit 7b6259977f
1 changed files with 6 additions and 0 deletions
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6
lexer/src/states/mod.rs
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@ -35,3 +35,9 @@ pub trait State: Debug {
fn lex(&mut self, c: char) -> StateResult; fn lex(&mut self, c: char) -> StateResult;
fn none(&mut self) -> Result<Option<Token>, String>; fn none(&mut self) -> Result<Option<Token>, String>;
} }
impl StateResult {
pub fn fail(msg: &str) -> StateResult {
StateResult::Fail { msg: msg.to_string() }
}
}