nac3/nac3standalone/src/basic_symbol_resolver.rs

88 lines
2.6 KiB
Rust

use nac3core::{
codegen::CodeGenContext,
symbol_resolver::{SymbolResolver, SymbolValue, ValueEnum},
toplevel::{DefinitionId, TopLevelDef},
typecheck::{
type_inferencer::PrimitiveStore,
typedef::{Type, Unifier},
},
};
use nac3parser::ast::{self, StrRef};
use parking_lot::{Mutex, RwLock};
use std::{collections::HashMap, sync::Arc};
use std::collections::HashSet;
pub struct ResolverInternal {
pub id_to_type: Mutex<HashMap<StrRef, Type>>,
pub id_to_def: Mutex<HashMap<StrRef, DefinitionId>>,
pub class_names: Mutex<HashMap<StrRef, Type>>,
pub module_globals: Mutex<HashMap<StrRef, SymbolValue>>,
pub str_store: Mutex<HashMap<String, i32>>,
}
impl ResolverInternal {
pub fn add_id_def(&self, id: StrRef, def: DefinitionId) {
self.id_to_def.lock().insert(id, def);
}
pub fn add_id_type(&self, id: StrRef, ty: Type) {
self.id_to_type.lock().insert(id, ty);
}
pub fn add_module_global(&self, id: StrRef, val: SymbolValue) {
self.module_globals.lock().insert(id, val);
}
}
pub struct Resolver(pub Arc<ResolverInternal>);
impl SymbolResolver for Resolver {
fn get_default_param_value(&self, expr: &ast::Expr) -> Option<SymbolValue> {
match &expr.node {
ast::ExprKind::Name { id, .. } => self.0.module_globals.lock().get(id).cloned(),
_ => unimplemented!("other type of expr not supported at {}", expr.location),
}
}
fn get_symbol_type(
&self,
_: &mut Unifier,
_: &[Arc<RwLock<TopLevelDef>>],
_: &PrimitiveStore,
str: StrRef,
) -> Result<Type, String> {
self.0.id_to_type.lock().get(&str).copied().ok_or(format!("cannot get type of {str}"))
}
fn get_symbol_value<'ctx>(
&self,
_: StrRef,
_: &mut CodeGenContext<'ctx, '_>,
) -> Option<ValueEnum<'ctx>> {
unimplemented!()
}
fn get_identifier_def(&self, id: StrRef) -> Result<DefinitionId, HashSet<String>> {
self.0.id_to_def.lock().get(&id).copied()
.ok_or_else(|| HashSet::from([
format!("Undefined identifier `{id}`"),
]))
}
fn get_string_id(&self, s: &str) -> i32 {
let mut str_store = self.0.str_store.lock();
if let Some(id) = str_store.get(s) {
*id
} else {
let id = i32::try_from(str_store.len())
.expect("Symbol resolver string store size exceeds max capacity (i32::MAX)");
str_store.insert(s.to_string(), id);
id
}
}
fn get_exception_id(&self, _: usize) -> usize {
unimplemented!()
}
}