| // Copyright (c) 2018 The predicates-rs Project Developers. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/license/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| use crate::reflection; |
| use crate::Predicate; |
| use std::fmt; |
| |
| use normalize_line_endings::normalized; |
| |
| #[derive(Debug, Clone, Copy, PartialEq, Eq)] |
| /// Predicate adapter that normalizes the newlines contained in the variable being tested. |
| /// |
| /// This is created by `pred.normalize()`. |
| pub struct NormalizedPredicate<P> |
| where |
| P: Predicate<str>, |
| { |
| pub(crate) p: P, |
| } |
| |
| impl<P> reflection::PredicateReflection for NormalizedPredicate<P> |
| where |
| P: Predicate<str>, |
| { |
| fn children<'a>(&'a self) -> Box<dyn Iterator<Item = reflection::Child<'a>> + 'a> { |
| let params = vec![reflection::Child::new("predicate", &self.p)]; |
| Box::new(params.into_iter()) |
| } |
| } |
| |
| impl<P> Predicate<str> for NormalizedPredicate<P> |
| where |
| P: Predicate<str>, |
| { |
| fn eval(&self, variable: &str) -> bool { |
| let variable = normalized(variable.chars()).collect::<String>(); |
| self.p.eval(&variable) |
| } |
| |
| fn find_case<'a>(&'a self, expected: bool, variable: &str) -> Option<reflection::Case<'a>> { |
| let variable = normalized(variable.chars()).collect::<String>(); |
| self.p.find_case(expected, &variable) |
| } |
| } |
| |
| impl<P> fmt::Display for NormalizedPredicate<P> |
| where |
| P: Predicate<str>, |
| { |
| fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
| self.p.fmt(f) |
| } |
| } |