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//! This module defines built-in types.
//!
//! A peculiarity of built-in types is that they are always available and are
//! not associated with any particular crate.
use std::fmt;
use hir_expand::name::{name, AsName, Name};
/// Different signed int types.
#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub enum BuiltinInt {
Isize,
I8,
I16,
I32,
I64,
I128,
}
/// Different unsigned int types.
#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub enum BuiltinUint {
Usize,
U8,
U16,
U32,
U64,
U128,
}
#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub enum BuiltinFloat {
F32,
F64,
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum BuiltinType {
Char,
Bool,
Str,
Int(BuiltinInt),
Uint(BuiltinUint),
Float(BuiltinFloat),
}
impl BuiltinType {
#[rustfmt::skip]
pub const ALL: &'static [(Name, BuiltinType)] = &[
(name![char], BuiltinType::Char),
(name![bool], BuiltinType::Bool),
(name![str], BuiltinType::Str),
(name![isize], BuiltinType::Int(BuiltinInt::Isize)),
(name![i8], BuiltinType::Int(BuiltinInt::I8)),
(name![i16], BuiltinType::Int(BuiltinInt::I16)),
(name![i32], BuiltinType::Int(BuiltinInt::I32)),
(name![i64], BuiltinType::Int(BuiltinInt::I64)),
(name![i128], BuiltinType::Int(BuiltinInt::I128)),
(name![usize], BuiltinType::Uint(BuiltinUint::Usize)),
(name![u8], BuiltinType::Uint(BuiltinUint::U8)),
(name![u16], BuiltinType::Uint(BuiltinUint::U16)),
(name![u32], BuiltinType::Uint(BuiltinUint::U32)),
(name![u64], BuiltinType::Uint(BuiltinUint::U64)),
(name![u128], BuiltinType::Uint(BuiltinUint::U128)),
(name![f32], BuiltinType::Float(BuiltinFloat::F32)),
(name![f64], BuiltinType::Float(BuiltinFloat::F64)),
];
}
impl AsName for BuiltinType {
fn as_name(&self) -> Name {
match self {
BuiltinType::Char => name![char],
BuiltinType::Bool => name![bool],
BuiltinType::Str => name![str],
BuiltinType::Int(it) => match it {
BuiltinInt::Isize => name![isize],
BuiltinInt::I8 => name![i8],
BuiltinInt::I16 => name![i16],
BuiltinInt::I32 => name![i32],
BuiltinInt::I64 => name![i64],
BuiltinInt::I128 => name![i128],
},
BuiltinType::Uint(it) => match it {
BuiltinUint::Usize => name![usize],
BuiltinUint::U8 => name![u8],
BuiltinUint::U16 => name![u16],
BuiltinUint::U32 => name![u32],
BuiltinUint::U64 => name![u64],
BuiltinUint::U128 => name![u128],
},
BuiltinType::Float(it) => match it {
BuiltinFloat::F32 => name![f32],
BuiltinFloat::F64 => name![f64],
},
}
}
}
impl fmt::Display for BuiltinType {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let type_name = self.as_name();
type_name.fmt(f)
}
}
#[rustfmt::skip]
impl BuiltinInt {
pub fn from_suffix(suffix: &str) -> Option<BuiltinInt> {
let res = match suffix {
"isize" => Self::Isize,
"i8" => Self::I8,
"i16" => Self::I16,
"i32" => Self::I32,
"i64" => Self::I64,
"i128" => Self::I128,
_ => return None,
};
Some(res)
}
}
#[rustfmt::skip]
impl BuiltinUint {
pub fn from_suffix(suffix: &str) -> Option<BuiltinUint> {
let res = match suffix {
"usize" => Self::Usize,
"u8" => Self::U8,
"u16" => Self::U16,
"u32" => Self::U32,
"u64" => Self::U64,
"u128" => Self::U128,
_ => return None,
};
Some(res)
}
}
#[rustfmt::skip]
impl BuiltinFloat {
pub fn from_suffix(suffix: &str) -> Option<BuiltinFloat> {
let res = match suffix {
"f32" => BuiltinFloat::F32,
"f64" => BuiltinFloat::F64,
_ => return None,
};
Some(res)
}
}
|
