From 7c2dd85a32e320fd412a720ea5b847c66bf246ae Mon Sep 17 00:00:00 2001
From: Lukas Wirth <lukastw97@gmail.com>
Date: Sun, 28 Feb 2021 10:58:34 +0100
Subject: Use chalk_ir::Scalar directly

---
 crates/hir_ty/src/primitive.rs | 147 ++++++++++++-----------------------------
 1 file changed, 41 insertions(+), 106 deletions(-)

(limited to 'crates/hir_ty/src/primitive.rs')

diff --git a/crates/hir_ty/src/primitive.rs b/crates/hir_ty/src/primitive.rs
index e727c9581..2449addfb 100644
--- a/crates/hir_ty/src/primitive.rs
+++ b/crates/hir_ty/src/primitive.rs
@@ -3,128 +3,63 @@
 //! * during type inference, they can be uncertain (ie, `let x = 92;`)
 //! * they don't belong to any particular crate.
 
-use std::fmt;
-
+pub use chalk_ir::{FloatTy, IntTy, UintTy};
 pub use hir_def::builtin_type::{BuiltinFloat, BuiltinInt, BuiltinUint};
 
-/// Different signed int types.
-#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub enum IntTy {
-    Isize,
-    I8,
-    I16,
-    I32,
-    I64,
-    I128,
-}
-
-/// Different unsigned int types.
-#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub enum UintTy {
-    Usize,
-    U8,
-    U16,
-    U32,
-    U64,
-    U128,
-}
-
-impl fmt::Display for IntTy {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{}", self.ty_to_string())
-    }
-}
-
-impl IntTy {
-    pub fn ty_to_string(self) -> &'static str {
-        match self {
-            IntTy::Isize => "isize",
-            IntTy::I8 => "i8",
-            IntTy::I16 => "i16",
-            IntTy::I32 => "i32",
-            IntTy::I64 => "i64",
-            IntTy::I128 => "i128",
-        }
-    }
-}
-
-impl fmt::Display for UintTy {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{}", self.ty_to_string())
-    }
-}
-
-impl UintTy {
-    pub fn ty_to_string(self) -> &'static str {
-        match self {
-            UintTy::Usize => "usize",
-            UintTy::U8 => "u8",
-            UintTy::U16 => "u16",
-            UintTy::U32 => "u32",
-            UintTy::U64 => "u64",
-            UintTy::U128 => "u128",
-        }
-    }
-}
-
-#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub enum FloatTy {
-    F32,
-    F64,
-}
-
-impl fmt::Debug for FloatTy {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        fmt::Display::fmt(self, f)
+pub fn int_ty_to_string(ty: IntTy) -> &'static str {
+    match ty {
+        IntTy::Isize => "isize",
+        IntTy::I8 => "i8",
+        IntTy::I16 => "i16",
+        IntTy::I32 => "i32",
+        IntTy::I64 => "i64",
+        IntTy::I128 => "i128",
     }
 }
 
-impl fmt::Display for FloatTy {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{}", self.ty_to_string())
+pub fn uint_ty_to_string(ty: UintTy) -> &'static str {
+    match ty {
+        UintTy::Usize => "usize",
+        UintTy::U8 => "u8",
+        UintTy::U16 => "u16",
+        UintTy::U32 => "u32",
+        UintTy::U64 => "u64",
+        UintTy::U128 => "u128",
     }
 }
 
-impl FloatTy {
-    pub fn ty_to_string(self) -> &'static str {
-        match self {
-            FloatTy::F32 => "f32",
-            FloatTy::F64 => "f64",
-        }
+pub fn float_ty_to_string(ty: FloatTy) -> &'static str {
+    match ty {
+        FloatTy::F32 => "f32",
+        FloatTy::F64 => "f64",
     }
 }
 
-impl From<BuiltinInt> for IntTy {
-    fn from(t: BuiltinInt) -> Self {
-        match t {
-            BuiltinInt::Isize => Self::Isize,
-            BuiltinInt::I8 => Self::I8,
-            BuiltinInt::I16 => Self::I16,
-            BuiltinInt::I32 => Self::I32,
-            BuiltinInt::I64 => Self::I64,
-            BuiltinInt::I128 => Self::I128,
-        }
+pub(super) fn int_ty_from_builtin(t: BuiltinInt) -> IntTy {
+    match t {
+        BuiltinInt::Isize => IntTy::Isize,
+        BuiltinInt::I8 => IntTy::I8,
+        BuiltinInt::I16 => IntTy::I16,
+        BuiltinInt::I32 => IntTy::I32,
+        BuiltinInt::I64 => IntTy::I64,
+        BuiltinInt::I128 => IntTy::I128,
     }
 }
 
-impl From<BuiltinUint> for UintTy {
-    fn from(t: BuiltinUint) -> Self {
-        match t {
-            BuiltinUint::Usize => Self::Usize,
-            BuiltinUint::U8 => Self::U8,
-            BuiltinUint::U16 => Self::U16,
-            BuiltinUint::U32 => Self::U32,
-            BuiltinUint::U64 => Self::U64,
-            BuiltinUint::U128 => Self::U128,
-        }
+pub(super) fn uint_ty_from_builtin(t: BuiltinUint) -> UintTy {
+    match t {
+        BuiltinUint::Usize => UintTy::Usize,
+        BuiltinUint::U8 => UintTy::U8,
+        BuiltinUint::U16 => UintTy::U16,
+        BuiltinUint::U32 => UintTy::U32,
+        BuiltinUint::U64 => UintTy::U64,
+        BuiltinUint::U128 => UintTy::U128,
     }
 }
 
-impl From<BuiltinFloat> for FloatTy {
-    fn from(t: BuiltinFloat) -> Self {
-        match t {
-            BuiltinFloat::F32 => Self::F32,
-            BuiltinFloat::F64 => Self::F64,
-        }
+pub(super) fn float_ty_from_builtin(t: BuiltinFloat) -> FloatTy {
+    match t {
+        BuiltinFloat::F32 => FloatTy::F32,
+        BuiltinFloat::F64 => FloatTy::F64,
     }
 }
-- 
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