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use sway_types::Span;

use crate::{declaration_engine::DeclarationId, language::CallPath, type_system::*};

#[derive(Clone, Debug)]
pub struct TyImplTrait {
    pub impl_type_parameters: Vec<TypeParameter>,
    pub trait_name: CallPath,
    pub trait_type_arguments: Vec<TypeArgument>,
    pub methods: Vec<DeclarationId>,
    pub implementing_for_type_id: TypeId,
    pub type_implementing_for_span: Span,
    pub span: Span,
}

impl EqWithTypeEngine for TyImplTrait {}
impl PartialEqWithTypeEngine for TyImplTrait {
    fn eq(&self, rhs: &Self, type_engine: &TypeEngine) -> bool {
        self.impl_type_parameters
            .eq(&rhs.impl_type_parameters, type_engine)
            && self.trait_name == rhs.trait_name
            && self
                .trait_type_arguments
                .eq(&rhs.trait_type_arguments, type_engine)
            && self.methods.eq(&rhs.methods, type_engine)
            && self.implementing_for_type_id == rhs.implementing_for_type_id
            && self.type_implementing_for_span == rhs.type_implementing_for_span
            && self.span == rhs.span
    }
}

impl CopyTypes for TyImplTrait {
    fn copy_types_inner(&mut self, type_mapping: &TypeMapping, type_engine: &TypeEngine) {
        self.impl_type_parameters
            .iter_mut()
            .for_each(|x| x.copy_types(type_mapping, type_engine));
        self.implementing_for_type_id
            .copy_types(type_mapping, type_engine);
        self.methods
            .iter_mut()
            .for_each(|x| x.copy_types(type_mapping, type_engine));
    }
}

impl ReplaceSelfType for TyImplTrait {
    fn replace_self_type(&mut self, type_engine: &TypeEngine, self_type: TypeId) {
        self.impl_type_parameters
            .iter_mut()
            .for_each(|x| x.replace_self_type(type_engine, self_type));
        self.implementing_for_type_id
            .replace_self_type(type_engine, self_type);
        self.methods
            .iter_mut()
            .for_each(|x| x.replace_self_type(type_engine, self_type));
    }
}