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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
|
/*
* MRustC - Rust Compiler
* - By John Hodge (Mutabah/thePowersGang)
*
* hir/path.hpp
* - Item paths
*/
#ifndef _HIR_PATH_HPP_
#define _HIR_PATH_HPP_
#pragma once
#include <common.hpp>
#include <tagged_union.hpp>
#include <span.hpp>
namespace HIR {
class TypeRef;
class Trait;
enum Compare {
Equal,
Fuzzy,
Unequal,
};
typedef ::std::function<const ::HIR::TypeRef&(const ::HIR::TypeRef&)> t_cb_resolve_type;
typedef ::std::function< ::HIR::Compare(unsigned int, const RcString&, const ::HIR::TypeRef&) > t_cb_match_generics;
static inline ::std::ostream& operator<<(::std::ostream& os, const Compare& x) {
switch(x)
{
case Compare::Equal: os << "Equal"; break;
case Compare::Fuzzy: os << "Fuzzy"; break;
case Compare::Unequal: os << "Unequal"; break;
}
return os;
}
static inline Compare& operator &=(Compare& x, const Compare& y) {
if(x == Compare::Unequal) {
}
else if(y == Compare::Unequal) {
x = Compare::Unequal;
}
else if(y == Compare::Fuzzy) {
x = Compare::Fuzzy;
}
else {
// keep as-is
}
return x;
}
/// Simple path - Absolute with no generic parameters
struct SimplePath
{
RcString m_crate_name;
::std::vector< RcString> m_components;
SimplePath():
m_crate_name("")
{
}
SimplePath(RcString crate):
m_crate_name( mv$(crate) )
{
}
SimplePath(RcString crate, ::std::vector< RcString> components):
m_crate_name( mv$(crate) ),
m_components( mv$(components) )
{
}
SimplePath clone() const;
SimplePath operator+(const RcString& s) const;
bool operator==(const SimplePath& x) const {
return m_crate_name == x.m_crate_name && m_components == x.m_components;
}
bool operator!=(const SimplePath& x) const {
return !(*this == x);
}
bool operator<(const SimplePath& x) const {
if( m_crate_name < x.m_crate_name ) return true;
if( m_crate_name > x.m_crate_name ) return false;
return ( m_components < x.m_components );
}
Ordering ord(const SimplePath& x) const {
auto rv = ::ord(m_crate_name, x.m_crate_name);
if(rv != OrdEqual) return rv;
rv = ::ord(m_components, x.m_components);
return rv;
}
friend ::std::ostream& operator<<(::std::ostream& os, const SimplePath& x);
};
struct PathParams
{
//::std::vector<LifetimeRef> m_lifetimes;
::std::vector<TypeRef> m_types;
PathParams();
PathParams(::HIR::TypeRef );
PathParams clone() const;
PathParams(const PathParams&) = delete;
PathParams& operator=(const PathParams&) = delete;
PathParams(PathParams&&) = default;
PathParams& operator=(PathParams&&) = default;
Compare compare_with_placeholders(const Span& sp, const PathParams& x, t_cb_resolve_type resolve_placeholder) const;
Compare match_test_generics_fuzz(const Span& sp, const PathParams& x, t_cb_resolve_type resolve_placeholder, t_cb_match_generics) const;
/// Indicates that params exist (and thus the target requires monomorphisation)
/// - Ignores lifetime params
bool has_params() const {
return !m_types.empty();
}
bool operator==(const PathParams& x) const;
bool operator!=(const PathParams& x) const { return !(*this == x); }
bool operator<(const PathParams& x) const { return ord(x) == OrdLess; }
Ordering ord(const PathParams& x) const {
return ::ord(m_types, x.m_types);
}
friend ::std::ostream& operator<<(::std::ostream& os, const PathParams& x);
};
/// Generic path - Simple path with one lot of generic params
class GenericPath
{
public:
SimplePath m_path;
PathParams m_params;
GenericPath();
GenericPath(::HIR::SimplePath sp);
GenericPath(::HIR::SimplePath sp, ::HIR::PathParams params);
GenericPath clone() const;
Compare compare_with_placeholders(const Span& sp, const GenericPath& x, t_cb_resolve_type resolve_placeholder) const;
bool operator==(const GenericPath& x) const;
bool operator!=(const GenericPath& x) const { return !(*this == x); }
bool operator<(const GenericPath& x) const { return ord(x) == OrdLess; }
Ordering ord(const GenericPath& x) const {
auto rv = ::ord(m_path, x.m_path);
if(rv != OrdEqual) return rv;
return ::ord(m_params, x.m_params);
}
friend ::std::ostream& operator<<(::std::ostream& os, const GenericPath& x);
};
class TraitPath
{
public:
GenericPath m_path;
::std::vector< RcString> m_hrls;
// TODO: Each bound should list its origin trait
::std::map< RcString, ::HIR::TypeRef> m_type_bounds;
const ::HIR::Trait* m_trait_ptr;
TraitPath clone() const;
Compare compare_with_placeholders(const Span& sp, const TraitPath& x, t_cb_resolve_type resolve_placeholder) const;
bool operator==(const TraitPath& x) const;
bool operator!=(const TraitPath& x) const { return !(*this == x); }
bool operator<(const TraitPath& x) const { return ord(x) == OrdLess; }
Ordering ord(const TraitPath& x) const {
ORD(m_path, x.m_path);
ORD(m_hrls, x.m_hrls);
return ::ord(m_type_bounds, x.m_type_bounds);
}
friend ::std::ostream& operator<<(::std::ostream& os, const TraitPath& x);
};
class Path
{
public:
// Two possibilities
// - UFCS
// - Generic path
TAGGED_UNION(Data, Generic,
(Generic, GenericPath),
(UfcsInherent, struct {
::std::unique_ptr<TypeRef> type;
RcString item;
PathParams params;
PathParams impl_params;
}),
(UfcsKnown, struct {
::std::unique_ptr<TypeRef> type;
GenericPath trait;
RcString item;
PathParams params;
}),
(UfcsUnknown, struct {
::std::unique_ptr<TypeRef> type;
//GenericPath ??;
RcString item;
PathParams params;
})
);
Data m_data;
Path(Data data):
m_data(mv$(data))
{}
Path(GenericPath _);
Path(SimplePath _);
Path(TypeRef ty, RcString item, PathParams item_params=PathParams());
Path(TypeRef ty, GenericPath trait, RcString item, PathParams item_params=PathParams());
Path clone() const;
Compare compare_with_placeholders(const Span& sp, const Path& x, t_cb_resolve_type resolve_placeholder) const;
Ordering ord(const Path& x) const;
bool operator==(const Path& x) const;
bool operator!=(const Path& x) const { return !(*this == x); }
bool operator<(const Path& x) const { return ord(x) == OrdLess; }
friend ::std::ostream& operator<<(::std::ostream& os, const Path& x);
};
} // namespace HIR
#endif
|
