floats iter 3.2: install neg/int_to_float/float_to_int_truncate/float_to_str/is_nan

2026-05-10 15:31:14 +02:00
parent 6890aa244f
commit 60a4c687b3
2 changed files with 161 additions and 0 deletions
@@ -136,6 +136,47 @@ pub(crate) fn builtin_ail_type(name: &str) -> Option<Type> {
            constraints: vec![],
            body: Box::new(Type::Var { name: "a".into() }),
        },
+        // Iter 22-floats.3: Float-conversion and inspection builtins.
+        // Same lockstep with `crates/ailang-check/src/builtins.rs`.
+        "neg" => Type::Forall {
+            vars: vec!["a".into()],
+            constraints: vec![],
+            body: Box::new(Type::Fn {
+                params: vec![Type::Var { name: "a".into() }],
+                ret: Box::new(Type::Var { name: "a".into() }),
+                effects: vec![],
+                param_modes: vec![],
+                ret_mode: ParamMode::Implicit,
+            }),
+        },
+        "int_to_float" => Type::Fn {
+            params: vec![Type::int()],
+            ret: Box::new(Type::float()),
+            effects: vec![],
+            param_modes: vec![],
+            ret_mode: ParamMode::Implicit,
+        },
+        "float_to_int_truncate" => Type::Fn {
+            params: vec![Type::float()],
+            ret: Box::new(Type::int()),
+            effects: vec![],
+            param_modes: vec![],
+            ret_mode: ParamMode::Implicit,
+        },
+        "float_to_str" => Type::Fn {
+            params: vec![Type::float()],
+            ret: Box::new(Type::str_()),
+            effects: vec![],
+            param_modes: vec![],
+            ret_mode: ParamMode::Implicit,
+        },
+        "is_nan" => Type::Fn {
+            params: vec![Type::float()],
+            ret: Box::new(Type::bool_()),
+            effects: vec![],
+            param_modes: vec![],
+            ret_mode: ParamMode::Implicit,
+        },
        _ => return None,
    })
 }