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use std::hash::Hasher;
use sway_types::{Ident, Span, Spanned};
use crate::{decl_engine::*, engine_threading::*, language::ty, type_system::*};
#[derive(Debug, Clone)]
pub struct DeclRef {
pub name: Ident,
pub id: DeclId,
pub decl_span: Span,
}
impl DeclRef {
pub(crate) fn new(name: Ident, id: usize, decl_span: Span) -> DeclRef {
DeclRef {
name,
id: DeclId::new(id),
decl_span,
}
}
pub(crate) fn with_parent<'a, T>(self, decl_engine: &DeclEngine, parent: &'a T) -> DeclRef
where
DeclId: From<&'a T>,
{
decl_engine.register_parent::<T>(&self, parent);
self
}
pub(crate) fn replace_id(&mut self, index: DeclId) {
self.id.replace_id(index);
}
pub(crate) fn subst_types_and_insert_new(
&self,
type_mapping: &TypeSubstMap,
engines: Engines<'_>,
) -> DeclRef {
let decl_engine = engines.de();
let mut decl = decl_engine.get(self);
decl.subst(type_mapping, engines);
decl_engine
.insert_wrapper(self.name.clone(), decl, self.decl_span.clone())
.with_parent(decl_engine, self)
}
pub(crate) fn replace_self_type_and_insert_new(
&self,
engines: Engines<'_>,
self_type: TypeId,
) -> DeclRef {
let decl_engine = engines.de();
let mut decl = decl_engine.get(self);
decl.replace_self_type(engines, self_type);
decl_engine
.insert_wrapper(self.name.clone(), decl, self.decl_span.clone())
.with_parent(decl_engine, self)
}
pub(crate) fn replace_decls_and_insert_new(
&self,
decl_mapping: &DeclMapping,
engines: Engines<'_>,
) -> DeclRef {
let decl_engine = engines.de();
let mut decl = decl_engine.get(&self.clone());
decl.replace_decls(decl_mapping, engines);
decl_engine
.insert_wrapper(self.name.clone(), decl, self.decl_span.clone())
.with_parent(decl_engine, self)
}
}
impl EqWithEngines for DeclRef {}
impl PartialEqWithEngines for DeclRef {
fn eq(&self, other: &Self, engines: Engines<'_>) -> bool {
let decl_engine = engines.de();
let left = decl_engine.get(self);
let right = decl_engine.get(other);
self.name == other.name && left.eq(&right, engines)
}
}
impl HashWithEngines for DeclRef {
fn hash<H: Hasher>(&self, state: &mut H, engines: Engines<'_>) {
let decl_engine = engines.de();
let decl = decl_engine.get(self);
decl.hash(state, engines);
}
}
impl Spanned for DeclRef {
fn span(&self) -> Span {
self.decl_span.clone()
}
}
impl SubstTypes for DeclRef {
fn subst_inner(&mut self, type_mapping: &TypeSubstMap, engines: Engines<'_>) {
let decl_engine = engines.de();
let mut decl = decl_engine.get(self);
decl.subst(type_mapping, engines);
decl_engine.replace(self, decl);
}
}
impl ReplaceSelfType for DeclRef {
fn replace_self_type(&mut self, engines: Engines<'_>, self_type: TypeId) {
let decl_engine = engines.de();
let mut decl = decl_engine.get(self);
decl.replace_self_type(engines, self_type);
decl_engine.replace(self, decl);
}
}
impl ReplaceDecls for DeclRef {
fn replace_decls_inner(&mut self, decl_mapping: &DeclMapping, engines: Engines<'_>) {
let decl_engine = engines.de();
if let Some(new_decl_ref) = decl_mapping.find_match(self) {
self.id = new_decl_ref;
return;
}
let all_parents = decl_engine.find_all_parents(engines, self);
for parent in all_parents.iter() {
if let Some(new_decl_ref) = decl_mapping.find_match(parent) {
self.id = new_decl_ref;
return;
}
}
}
}
impl ReplaceFunctionImplementingType for DeclRef {
fn replace_implementing_type(
&mut self,
engines: Engines<'_>,
implementing_type: ty::TyDeclaration,
) {
let decl_engine = engines.de();
let mut decl = decl_engine.get(self);
decl.replace_implementing_type(engines, implementing_type);
decl_engine.replace(self, decl);
}
}