1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
use crate::syntax::{NamedType, Ty1, Type};
use proc_macro2::{Ident, Span};
use std::hash::{Hash, Hasher};
use syn::Token;
#[derive(Copy, Clone, PartialEq, Eq, Hash)]
pub(crate) enum ImplKey<'a> {
RustBox(NamedImplKey<'a>),
RustVec(NamedImplKey<'a>),
UniquePtr(NamedImplKey<'a>),
SharedPtr(NamedImplKey<'a>),
WeakPtr(NamedImplKey<'a>),
CxxVector(NamedImplKey<'a>),
}
#[derive(Copy, Clone)]
pub(crate) struct NamedImplKey<'a> {
#[allow(dead_code)] // only used by cxxbridge-macro, not cxx-build
pub begin_span: Span,
pub rust: &'a Ident,
#[allow(dead_code)] // only used by cxxbridge-macro, not cxx-build
pub lt_token: Option<Token![<]>,
#[allow(dead_code)] // only used by cxxbridge-macro, not cxx-build
pub gt_token: Option<Token![>]>,
#[allow(dead_code)] // only used by cxxbridge-macro, not cxx-build
pub end_span: Span,
}
impl Type {
pub(crate) fn impl_key(&self) -> Option<ImplKey> {
if let Type::RustBox(ty) = self {
if let Type::Ident(ident) = &ty.inner {
return Some(ImplKey::RustBox(NamedImplKey::new(ty, ident)));
}
} else if let Type::RustVec(ty) = self {
if let Type::Ident(ident) = &ty.inner {
return Some(ImplKey::RustVec(NamedImplKey::new(ty, ident)));
}
} else if let Type::UniquePtr(ty) = self {
if let Type::Ident(ident) = &ty.inner {
return Some(ImplKey::UniquePtr(NamedImplKey::new(ty, ident)));
}
} else if let Type::SharedPtr(ty) = self {
if let Type::Ident(ident) = &ty.inner {
return Some(ImplKey::SharedPtr(NamedImplKey::new(ty, ident)));
}
} else if let Type::WeakPtr(ty) = self {
if let Type::Ident(ident) = &ty.inner {
return Some(ImplKey::WeakPtr(NamedImplKey::new(ty, ident)));
}
} else if let Type::CxxVector(ty) = self {
if let Type::Ident(ident) = &ty.inner {
return Some(ImplKey::CxxVector(NamedImplKey::new(ty, ident)));
}
}
None
}
}
impl<'a> PartialEq for NamedImplKey<'a> {
fn eq(&self, other: &Self) -> bool {
PartialEq::eq(self.rust, other.rust)
}
}
impl<'a> Eq for NamedImplKey<'a> {}
impl<'a> Hash for NamedImplKey<'a> {
fn hash<H: Hasher>(&self, hasher: &mut H) {
self.rust.hash(hasher);
}
}
impl<'a> NamedImplKey<'a> {
fn new(outer: &Ty1, inner: &'a NamedType) -> Self {
NamedImplKey {
begin_span: outer.name.span(),
rust: &inner.rust,
lt_token: inner.generics.lt_token,
gt_token: inner.generics.gt_token,
end_span: outer.rangle.span,
}
}
}
|
