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-rw-r--r--crates/hir_ty/src/consts.rs21
1 files changed, 0 insertions, 21 deletions
diff --git a/crates/hir_ty/src/consts.rs b/crates/hir_ty/src/consts.rs
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--- a/crates/hir_ty/src/consts.rs
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1//! Handling of concrete const values
2
3/// A concrete constant value
4#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
5pub enum ConstScalar {
6 // for now, we only support the trivial case of constant evaluating the length of an array
7 // Note that this is u64 because the target usize may be bigger than our usize
8 Usize(u64),
9
10 /// Case of an unknown value that rustc might know but we don't
11 Unknown,
12}
13
14impl std::fmt::Display for ConstScalar {
15 fn fmt(&self, fmt: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
16 match self {
17 ConstScalar::Usize(us) => write!(fmt, "{}", us),
18 ConstScalar::Unknown => write!(fmt, "_"),
19 }
20 }
21}