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
|
import libdemangle
from dataclasses import dataclass, field
from typing import List
from ...builder import AsyncBuilder
from ... import util
from ...types import *
from ..symbol import *
special_func_no_return = set([
"ct",
"dt"
])
@dataclass(eq=False)
class Function(Symbol):
return_type: Type = None
argument_types: List[Type] = field(default_factory=list)
special_func_name: str = None
func_is_const: bool = False
asm: bool = False
@property
def uses_any_templates(self):
if self.demangled_name and self.demangled_name.has_template:
return True
is_templated = [False]
def callback(tp, depth):
if isinstance(tp, NamedType):
is_templated[0] |= tp.has_template
if is_templated[0]:
return True
if self.return_type:
self.return_type.traverse(callback, 0)
for arg_type in self.argument_types:
arg_type.traverse(callback, 0)
return is_templated[0]
@property
def is_static(self):
s = self.reference_count.static
e = self.reference_count.extern
r = self.reference_count.rel
static_by_references = (s > 0 and e == 0 and r == 0)
if not static_by_references:
return False
if not self.demangled_name:
# very arbitrary, but function begining with __ are often special
if self.identifier.name and self.identifier.name.startswith("__"):
return False
return True
return not self.uses_any_templates
@property
def label(self):
return self.identifier.label
def function_name(self, c_export: bool, full_qualified_name: bool):
if not self.demangled_name or c_export:
return self.identifier.label
if self.demangled_name.require_specialization:
return self.identifier.label
name = self.demangled_name
if self.special_func_name and self.has_class:
# fix up the constructor and destructor if the function is template specialized
special_name = None
if self.special_func_name == "ct":
special_name = name.second_last.to_str()
if self.special_func_name == "dt":
special_name = "~" + name.second_last.to_str()
if special_name:
name = NamedType(
self.demangled_name.names[:-1] + [ClassName(special_name, [])])
if full_qualified_name:
return name.to_str()
else:
return name.last.to_str()
def valid_reference(self, addr):
return addr % 4 == 0
def cpp_reference(self, accessor, addr):
if addr == self.addr:
return self.label
else:
offset = addr - self.addr
return f"(((char*){self.label})+0x{offset:X})"
def relocation_symbols(self, context, symbol_table, section):
symbols = section.relocations_in_range(
symbol_table, self.start, self.end)
return symbols
def types(self):
return set()
async def export_function_header(self, exporter,
builder: AsyncBuilder,
forward: bool,
c_export: bool,
full_qualified_name: bool):
# TODO: remove or refactor
if False:
await builder.write(f"// {self.is_static} {self.uses_any_templates}")
lines = []
def callback(tp, depth):
pad = '\t' * depth
template = False
if isinstance(tp, NamedType):
template = tp.has_template
lines.append(f"// {pad} {tp.type()} {template}")
if self.return_type:
self.return_type.traverse(callback, 0)
for arg_type in self.argument_types:
arg_type.traverse(callback, 0)
for line in lines:
await builder.write(line)
arg_type = []
if forward:
arg_type = [x.type(specialize_templates=True) for x in self.argument_types]
else:
arg_type = [
x.decl(f"param_{i}",specialize_templates=True)
for i, x in enumerate(self.argument_types)
]
if self.demangled_name and self.demangled_name.require_specialization:
arg_type = [f"void* _this", *arg_type]
arg_type = ", ".join(arg_type)
if self._section == ".init":
await builder.write_nonewline(f"SECTION_INIT ")
elif c_export or (self.demangled_name and self.demangled_name.require_specialization and full_qualified_name):
await builder.write_nonewline(f"extern \"C\" ")
if self.is_static and not self.has_class:
await self.export_static(builder)
if self.asm and not forward:
await builder.write_nonewline(f"asm ")
return_type = self.return_type
if not self.return_type:
return_type = VOID
is_special_function = (
self.special_func_name in special_func_no_return)
specialized = (
self.demangled_name and self.demangled_name.require_specialization)
if c_export:
await builder.write_nonewline(f"{return_type.type()} ")
await builder.write_nonewline(f"{self.function_name(c_export=True,full_qualified_name=full_qualified_name)}")
# specialized function will have the arguments even when exported as C
if specialized:
await builder.write_nonewline(f"({arg_type})")
else:
await builder.write_nonewline(f"()")
else:
if not is_special_function or specialized:
await builder.write_nonewline(f"{return_type.type()} ")
await builder.write_nonewline(f"{self.function_name(c_export=False, full_qualified_name=full_qualified_name)}")
await builder.write_nonewline(f"({arg_type})")
if self.has_class and self.func_is_const:
if specialized:
await builder.write_nonewline(f" /* const */")
else:
await builder.write_nonewline(f" const")
async def export_forward_references(self, exporter,
builder: AsyncBuilder,
c_export: bool = False):
# forward reference will only happen for c style functions. other functions willö
# will be forward referenced using the cpp-exporter types finder.
if not c_export:
return
await self.export_function_header(exporter, builder,
forward=True,
c_export=c_export,
full_qualified_name=False)
await builder.write(f";")
async def export_function_body(self, exporter, builder: AsyncBuilder):
assert False
async def export_declaration(self, exporter, builder: AsyncBuilder):
assert self.padding == 0
if self.alignment:
await builder.write("#pragma push")
await builder.write(f"#pragma function_align {self.alignment}")
await self.export_function_header(exporter, builder, forward=False, c_export=False, full_qualified_name=True)
await self.export_function_body(exporter, builder)
if self.alignment:
await builder.write("#pragma pop")
await builder.write("")
|
