whereexpr 0.1.6

A fast, expressive rule-based filtering engine for Rust that evaluates boolean expressions over any data structure
Documentation 
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use crate::Operation;
use crate::Error;
use crate::ValueKind;
use super::single_string::*;
// use super::string_contains_one_of::ContainsOneOf;
// use super::string_starts_with_one_of::StartsWithOneOf;
// use super::string_ends_with_one_of::EndsWithOneOf;
use super::string_is_one_of::IsOneOf;


#[derive(Debug)]
pub(crate) struct StringListHas {
    p: Equals
}
impl StringListHas {
    fn new(value: &str, ignore_case: bool) -> Self {
        Self { p: Equals::new(value, ignore_case) }
    }
    fn evaluate(&self, value: &[&str]) -> bool {
        for v in value {
            if self.p.evaluate(v) {
                return true;
            }
        }
        false
    }
}

#[derive(Debug)]
pub(crate) struct StringListHasOneOf {
    p: IsOneOf
}
impl StringListHasOneOf {
    fn new(values: &[&str], ignore_case: bool) -> Result<Self, Error> {
        Ok(Self { p: IsOneOf::with_str_list(values, ignore_case)? })
    }
    fn evaluate(&self, value: &[&str]) -> bool {
        for v in value {
            if self.p.evaluate(v) {
                return true;
            }
        }
        false
    }
}


#[derive(Debug)]
pub(crate) enum StringListPredicate {
    Has(StringListHas),
    HasOneOf(StringListHasOneOf),
}

impl StringListPredicate {
    #[inline(always)]
    pub(crate) fn evaluate(&self, value: &[&str]) -> bool {
        match self {
            StringListPredicate::Has(predicate) => predicate.evaluate(value),
            StringListPredicate::HasOneOf(predicate) => predicate.evaluate(value),
        }
    }
    pub(crate) fn with_str(operation: Operation, value: &str, ignore_case: bool) -> Result<Self, Error> {
        match operation {
            Operation::Has => Ok(StringListPredicate::Has(StringListHas::new(value, ignore_case))),
            _ => Err(Error::InvalidOperationForValue(operation, ValueKind::StringList)),
        }
    }
    pub(crate) fn with_str_list(operation: Operation, values: &[&str], ignore_case: bool) -> Result<Self, Error> {
        match operation {
            Operation::HasOneOf => Ok(StringListPredicate::HasOneOf(StringListHasOneOf::new(values, ignore_case)?)),
            _ => Err(Error::InvalidOperationForValue(operation, ValueKind::StringList)),
        }
    }  
}