src/frontend.rs

@@ -4,7 +4,7 @@ use std::fmt::Write;
 
 use super::parser;
 use crate::rtlil;
-pub use callable::{Callable, CallableContext, CallableId};
+pub use callable::Callable;
 pub use types::{Type, TypeStruct, TypingContext};
 
 mod callable;
@@ -64,8 +64,7 @@ impl Signal {
 
 pub struct Context {
     /// map callable name to callable
-    callable_names: BTreeMap<String, CallableId>,
-    callables: CallableContext,
+    callables: BTreeMap<String, Callable>,
     /// type names
     typenames: BTreeMap<String, Type>,
     types: TypingContext,
@@ -90,23 +89,16 @@ impl Counter {
 
 impl Context {
     pub fn new() -> Self {
-        let mut tcx = TypingContext::new();
-        let ccx = CallableContext::new(&mut tcx);
-
-        let typenames = [
-            ("Logic".to_string(), tcx.primitives.logic),
-            ("Num".to_string(), tcx.primitives.elabnum),
-        ]
-        .into();
-
-        let callable_names = [("reduce_or".to_string(), ccx.builtins.reduce_or)].into();
-
+        let tcx = TypingContext::new();
         Context {
-            callables: ccx,
-            callable_names,
+            callables: BTreeMap::new(),
             signals: BTreeMap::new(),
-            types: tcx,
-            typenames,
+            types: TypingContext::new(),
+            typenames: [
+                ("Logic".to_string(), tcx.primitives.logic),
+                ("Num".to_string(), tcx.primitives.elabnum),
+            ]
+            .into(),
             ids: Counter::new(),
         }
     }
@@ -123,8 +115,8 @@ impl Context {
         })
     }
 
-    fn try_get_callable(&self, callname: &str) -> Result<CallableId, CompileError> {
-        self.callable_names.get(callname).copied().ok_or_else(|| {
+    fn try_get_callable(&self, callname: &str) -> Result<&Callable, CompileError> {
+        self.callables.get(callname).ok_or_else(|| {
             CompileError::new(CompileErrorKind::UndefinedReference(callname.to_owned()))
         })
     }
@@ -172,7 +164,7 @@ impl Context {
                 typed_ir::Expr {
                     id,
                     kind: typed_ir::ExprKind::Call {
-                        called: self.callables.builtins.bitnot,
+                        called: typed_ir::DefId(99),
                         args: vec![a],
                     },
                     typ: self.types.primitives.infer,
@@ -183,7 +175,7 @@ impl Context {
                 typed_ir::Expr {
                     id,
                     kind: typed_ir::ExprKind::Call {
-                        called: self.callables.builtins.xor,
+                        called: typed_ir::DefId(99),
                         args: vec![a, b],
                     },
                     typ: self.types.primitives.infer,
@@ -195,11 +187,10 @@ impl Context {
                     .iter()
                     .map(|expr| self.type_expression(expr))
                     .collect::<Result<Vec<_>, _>>()?;
-                let called = self.try_get_callable(call.name.fragment())?;
                 typed_ir::Expr {
                     id,
                     kind: typed_ir::ExprKind::Call {
-                        called,
+                        called: typed_ir::DefId(99),
                         args: args_resolved,
                     },
                     typ: self.types.primitives.infer,
@@ -293,8 +284,7 @@ impl Context {
                         Ok(format!("_{}", arg.id.0))
                     })
                     .collect::<Result<Vec<_>, std::fmt::Error>>()?;
-                let callable = self.callables.get(*called);
-                format!("{}({})", callable.name(), args.join(", "))
+                format!("_{}({})", called.0, args.join(", "))
             }
         };
         let mut type_pretty = String::new();

src/frontend/callable.rs

@@ -1,8 +1,4 @@
-use super::types::{Type, TypingContext};
-use std::collections::HashMap;
-
-#[derive(Debug, Copy, Clone, PartialOrd, PartialEq, Eq, Ord)]
-pub struct CallableId(pub usize);
+use super::types::Type;
 
 pub struct Callable {
     pub name: String,
@@ -19,54 +15,3 @@ impl<'ty> Callable {
         self.args.len()
     }
 }
-
-pub struct BuiltinCallables {
-    pub xor: CallableId,
-    pub bitnot: CallableId,
-    pub reduce_or: CallableId,
-}
-
-pub struct CallableContext {
-    pub builtins: BuiltinCallables,
-    callables: Vec<Callable>,
-}
-
-impl CallableContext {
-    pub fn new(typectx: &mut TypingContext) -> Self {
-        let builtins = BuiltinCallables {
-            xor: CallableId(0),
-            bitnot: CallableId(1),
-            reduce_or: CallableId(2),
-        };
-        Self {
-            callables: vec![
-                Callable {
-                    name: "builtin::xor".to_string(),
-                    args: vec![],
-                    ret_type: Some(typectx.primitives.logic),
-                },
-                Callable {
-                    name: "builtin::bitnot".to_string(),
-                    args: vec![],
-                    ret_type: Some(typectx.primitives.logic),
-                },
-                Callable {
-                    name: "builtin::reduce_or".to_string(),
-                    args: vec![],
-                    ret_type: Some(typectx.primitives.logic),
-                },
-            ],
-            builtins,
-        }
-    }
-
-    pub fn add(&mut self, callable: Callable) -> CallableId {
-        let id = self.callables.len();
-        self.callables.push(callable);
-        CallableId(id)
-    }
-
-    pub fn get(&self, id: CallableId) -> &Callable {
-        &self.callables[id.0]
-    }
-}

src/frontend/typed_ir.rs

@@ -1,4 +1,3 @@
-use super::callable::CallableId;
 use super::types::{ElabData, Type};
 use std::fmt::Debug;
 
@@ -32,7 +31,7 @@ pub struct Expr {
 pub enum ExprKind {
     Literal(ElabData),
     Path(DefId),
-    Call { called: CallableId, args: Vec<Expr> },
+    Call { called: DefId, args: Vec<Expr> },
 }
 
 #[derive(Debug, Clone)]

src/frontend/types.rs

@@ -27,17 +27,11 @@ enum TypeKind {
     /// UInt of generic width
     UInt(ElabData),
     /// Callable
-    Callable(FnSig),
+    Callable,
     /// A type that was not given and needs to be inferred
     Infer,
 }
 
-#[derive(Debug, Clone)]
-pub struct FnSig {
-    params: Vec<Type>,
-    ret: Type,
-}
-
 #[derive(Debug, Clone)]
 pub struct ElabData {
     typ: Type,
@@ -151,7 +145,7 @@ impl TypingContext {
                 }
             }
             TypeKind::UInt(_) => todo!(),
-            TypeKind::Callable(_sig) => todo!("callable generic params"),
+            TypeKind::Callable => todo!("callable generic params"),
             // need to know what the type is to parameterize it
             TypeKind::Infer => None,
         }
@@ -178,7 +172,7 @@ impl TypingContext {
             }
             TypeKind::Infer => write!(w, "?"),
             TypeKind::UInt(_) => todo!("print uint"),
-            TypeKind::Callable(_sig) => todo!("print callable"),
+            TypeKind::Callable => todo!("print callable"),
         }
     }
 }