diff options
Diffstat (limited to 'src/libsyntax/ast.rs')
| -rw-r--r-- | src/libsyntax/ast.rs | 91 |
1 files changed, 51 insertions, 40 deletions
diff --git a/src/libsyntax/ast.rs b/src/libsyntax/ast.rs index f761c35cd5c..67d1acbccfb 100644 --- a/src/libsyntax/ast.rs +++ b/src/libsyntax/ast.rs @@ -22,7 +22,6 @@ pub use GenericArgs::*; pub use UnsafeSource::*; pub use crate::util::parser::ExprPrecedence; -pub use rustc_target::abi::FloatTy; pub use syntax_pos::symbol::{Ident, Symbol as Name}; use crate::parse::token::{self, DelimToken}; @@ -1400,7 +1399,7 @@ pub struct Lit { // Clippy uses Hash and PartialEq /// Type of the integer literal based on provided suffix. -#[derive(Clone, RustcEncodable, RustcDecodable, Debug, Copy, Hash, PartialEq)] +#[derive(Clone, Copy, RustcEncodable, RustcDecodable, Debug, Hash, PartialEq)] pub enum LitIntType { /// e.g. `42_i32`. Signed(IntTy), @@ -1410,6 +1409,15 @@ pub enum LitIntType { Unsuffixed, } +/// Type of the float literal based on provided suffix. +#[derive(Clone, Copy, RustcEncodable, RustcDecodable, Debug, Hash, PartialEq)] +pub enum LitFloatType { + /// A float literal with a suffix (`1f32` or `1E10f32`). + Suffixed(FloatTy), + /// A float literal without a suffix (`1.0 or 1.0E10`). + Unsuffixed, +} + /// Literal kind. /// /// E.g., `"foo"`, `42`, `12.34`, or `bool`. @@ -1427,9 +1435,7 @@ pub enum LitKind { /// An integer literal (`1`). Int(u128, LitIntType), /// A float literal (`1f64` or `1E10f64`). - Float(Symbol, FloatTy), - /// A float literal without a suffix (`1.0 or 1.0E10`). - FloatUnsuffixed(Symbol), + Float(Symbol, LitFloatType), /// A boolean literal. Bool(bool), /// Placeholder for a literal that wasn't well-formed in some way. @@ -1456,7 +1462,7 @@ impl LitKind { /// Returns `true` if this is a numeric literal. pub fn is_numeric(&self) -> bool { match *self { - LitKind::Int(..) | LitKind::Float(..) | LitKind::FloatUnsuffixed(..) => true, + LitKind::Int(..) | LitKind::Float(..) => true, _ => false, } } @@ -1473,14 +1479,14 @@ impl LitKind { // suffixed variants LitKind::Int(_, LitIntType::Signed(..)) | LitKind::Int(_, LitIntType::Unsigned(..)) - | LitKind::Float(..) => true, + | LitKind::Float(_, LitFloatType::Suffixed(..)) => true, // unsuffixed variants LitKind::Str(..) | LitKind::ByteStr(..) | LitKind::Byte(..) | LitKind::Char(..) | LitKind::Int(_, LitIntType::Unsuffixed) - | LitKind::FloatUnsuffixed(..) + | LitKind::Float(_, LitFloatType::Unsuffixed) | LitKind::Bool(..) | LitKind::Err(..) => false, } @@ -1552,7 +1558,36 @@ pub enum ImplItemKind { Macro(Mac), } -#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash, RustcEncodable, RustcDecodable, Copy)] +#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, RustcEncodable, RustcDecodable, Debug)] +pub enum FloatTy { + F32, + F64, +} + +impl FloatTy { + pub fn name_str(self) -> &'static str { + match self { + FloatTy::F32 => "f32", + FloatTy::F64 => "f64", + } + } + + pub fn name(self) -> Symbol { + match self { + FloatTy::F32 => sym::f32, + FloatTy::F64 => sym::f64, + } + } + + pub fn bit_width(self) -> usize { + match self { + FloatTy::F32 => 32, + FloatTy::F64 => 64, + } + } +} + +#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, RustcEncodable, RustcDecodable, Debug)] pub enum IntTy { Isize, I8, @@ -1562,20 +1597,8 @@ pub enum IntTy { I128, } -impl fmt::Debug for IntTy { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - fmt::Display::fmt(self, f) - } -} - -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 { + pub fn name_str(&self) -> &'static str { match *self { IntTy::Isize => "isize", IntTy::I8 => "i8", @@ -1586,7 +1609,7 @@ impl IntTy { } } - pub fn to_symbol(&self) -> Symbol { + pub fn name(&self) -> Symbol { match *self { IntTy::Isize => sym::isize, IntTy::I8 => sym::i8, @@ -1601,7 +1624,7 @@ impl IntTy { // Cast to a `u128` so we can correctly print `INT128_MIN`. All integral types // are parsed as `u128`, so we wouldn't want to print an extra negative // sign. - format!("{}{}", val as u128, self.ty_to_string()) + format!("{}{}", val as u128, self.name_str()) } pub fn bit_width(&self) -> Option<usize> { @@ -1616,7 +1639,7 @@ impl IntTy { } } -#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash, RustcEncodable, RustcDecodable, Copy)] +#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash, RustcEncodable, RustcDecodable, Copy, Debug)] pub enum UintTy { Usize, U8, @@ -1627,7 +1650,7 @@ pub enum UintTy { } impl UintTy { - pub fn ty_to_string(&self) -> &'static str { + pub fn name_str(&self) -> &'static str { match *self { UintTy::Usize => "usize", UintTy::U8 => "u8", @@ -1638,7 +1661,7 @@ impl UintTy { } } - pub fn to_symbol(&self) -> Symbol { + pub fn name(&self) -> Symbol { match *self { UintTy::Usize => sym::usize, UintTy::U8 => sym::u8, @@ -1650,7 +1673,7 @@ impl UintTy { } pub fn val_to_string(&self, val: u128) -> String { - format!("{}{}", val, self.ty_to_string()) + format!("{}{}", val, self.name_str()) } pub fn bit_width(&self) -> Option<usize> { @@ -1665,18 +1688,6 @@ impl UintTy { } } -impl fmt::Debug for UintTy { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - fmt::Display::fmt(self, f) - } -} - -impl fmt::Display for UintTy { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - write!(f, "{}", self.ty_to_string()) - } -} - /// A constraint on an associated type (e.g., `A = Bar` in `Foo<A = Bar>` or /// `A: TraitA + TraitB` in `Foo<A: TraitA + TraitB>`). #[derive(Clone, RustcEncodable, RustcDecodable, Debug)] |