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23 changes: 23 additions & 0 deletions src/librustdoc/clean/types.rs
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ use std::{slice, vec};
use rustc_ast::attr;
use rustc_ast::util::comments::beautify_doc_string;
use rustc_ast::{self as ast, AttrStyle};
use rustc_ast::{FloatTy, IntTy, UintTy};
use rustc_data_structures::fx::{FxHashMap, FxHashSet};
use rustc_hir as hir;
use rustc_hir::def::Res;
Expand Down Expand Up @@ -1279,6 +1280,28 @@ impl GetDefId for Type {
}

impl PrimitiveType {
pub fn from_hir(prim: hir::PrimTy) -> PrimitiveType {
match prim {
hir::PrimTy::Int(IntTy::Isize) => PrimitiveType::Isize,
hir::PrimTy::Int(IntTy::I8) => PrimitiveType::I8,
hir::PrimTy::Int(IntTy::I16) => PrimitiveType::I16,
hir::PrimTy::Int(IntTy::I32) => PrimitiveType::I32,
hir::PrimTy::Int(IntTy::I64) => PrimitiveType::I64,
hir::PrimTy::Int(IntTy::I128) => PrimitiveType::I128,
hir::PrimTy::Uint(UintTy::Usize) => PrimitiveType::Usize,
hir::PrimTy::Uint(UintTy::U8) => PrimitiveType::U8,
hir::PrimTy::Uint(UintTy::U16) => PrimitiveType::U16,
hir::PrimTy::Uint(UintTy::U32) => PrimitiveType::U32,
hir::PrimTy::Uint(UintTy::U64) => PrimitiveType::U64,
hir::PrimTy::Uint(UintTy::U128) => PrimitiveType::U128,
hir::PrimTy::Float(FloatTy::F32) => PrimitiveType::F32,
hir::PrimTy::Float(FloatTy::F64) => PrimitiveType::F64,
hir::PrimTy::Str => PrimitiveType::Str,
hir::PrimTy::Bool => PrimitiveType::Bool,
hir::PrimTy::Char => PrimitiveType::Char,
}
}

pub fn from_symbol(s: Symbol) -> Option<PrimitiveType> {
match s {
sym::isize => Some(PrimitiveType::Isize),
Expand Down
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