Fixed broken tests

nac3core/src/codegen/expr.rs

@@ -1193,6 +1193,7 @@ pub fn gen_expr<'ctx, 'a, G: CodeGenerator>(
                         .unwrap()
                         .to_basic_value_enum(ctx, generator)
                         .into_int_value();
+                    let raw_index = ctx.builder.build_int_s_extend(raw_index, generator.get_size_type(ctx.ctx), "sext");
                     // handle negative index
                     let is_negative = ctx.builder.build_int_compare(inkwell::IntPredicate::SLT, raw_index,
                         generator.get_size_type(ctx.ctx).const_zero(), "is_neg");

nac3standalone/demo/src/lists.py

@@ -29,8 +29,8 @@ def run() -> int32:
     output_int32_list(data[m2::m1])
 
     # work around https://git.m-labs.hk/M-Labs/nac3/issues/188
-    #get_list_slice()
-    #list_slice_assignment()
+    get_list_slice()
+    list_slice_assignment()
     return 0
 
 def get_list_slice():

nac3standalone/src/basic_symbol_resolver.rs

@@ -17,6 +17,7 @@ pub struct ResolverInternal {
     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 {
@@ -71,7 +72,14 @@ impl SymbolResolver for Resolver {
         self.0.id_to_def.lock().get(&id).cloned()
     }
 
-    fn get_string_id(&self, _: &str) -> i32 {
-        unimplemented!()
+    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 = str_store.len() as i32;
+            str_store.insert(s.to_string(), id);
+            id
+        }
     }
 }

nac3standalone/src/main.rs

@@ -52,6 +52,7 @@ fn main() {
         id_to_def: builtins_def.into(),
         class_names: Default::default(),
         module_globals: Default::default(),
+        str_store: Default::default(),
     }
     .into();
     let resolver =