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
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
|
from __future__ import annotations
import copy
from typing import TYPE_CHECKING
from typing import Type as T
from fortls.constants import (
BLOCK_TYPE_ID,
FUNCTION_TYPE_ID,
INTERFACE_TYPE_ID,
MODULE_TYPE_ID,
SUBMODULE_TYPE_ID,
SUBROUTINE_TYPE_ID,
)
from fortls.json_templates import range_json
from .base import FortranObj
from .diagnostics import Diagnostic
from .imports import Import
from .utilities import find_in_scope
if TYPE_CHECKING:
from .ast import FortranAST
from .use import Use
class Scope(FortranObj):
def __init__(
self,
file_ast: FortranAST,
line_number: int,
name: str,
keywords: list = None,
):
super().__init__()
if keywords is None:
keywords = []
self.file_ast: FortranAST = file_ast
self.sline: int = line_number
self.eline: int = line_number
self.name: str = name
self.children: list[T[Scope]] = []
self.members: list = []
self.use: list[Use | Import] = []
self.keywords: list = keywords
self.inherit = None
self.parent = None
self.contains_start = None
self.implicit_line = None
self.FQSN: str = self.name.lower()
if file_ast.enc_scope_name is not None:
self.FQSN = f"{file_ast.enc_scope_name.lower()}::{self.name.lower()}"
def copy_from(self, copy_source: Scope):
# Pass the reference, we don't want shallow copy since that would still
# result into 2 versions of attributes between copy_source and self
for k, v in copy_source.__dict__.items():
setattr(self, k, v)
def add_use(self, use_mod: Use | Import):
self.use.append(use_mod)
def set_inherit(self, inherit_type):
self.inherit = inherit_type
def set_parent(self, parent_obj):
self.parent = parent_obj
def set_implicit(self, implicit_flag, line_number):
self.implicit_vars = implicit_flag
self.implicit_line = line_number
def mark_contains(self, line_number):
if self.contains_start is not None:
raise ValueError
self.contains_start = line_number
def add_child(self, child):
self.children.append(child)
child.set_parent(self)
def update_fqsn(self, enc_scope=None):
if enc_scope is not None:
self.FQSN = f"{enc_scope.lower()}::{self.name.lower()}"
else:
self.FQSN = self.name.lower()
for child in self.children:
child.update_fqsn(self.FQSN)
def add_member(self, member):
self.members.append(member)
def get_children(self, public_only=False) -> list[T[FortranObj]]:
if not public_only:
return copy.copy(self.children)
pub_children = []
for child in self.children:
if (child.vis < 0) or ((self.def_vis < 0) and (child.vis <= 0)):
continue
if child.name.startswith("#GEN_INT"):
pub_children.append(child)
continue
pub_children.append(child)
return pub_children
def check_definitions(self, obj_tree) -> list[Diagnostic]:
"""Check for definition errors in scope"""
fqsn_dict: dict[str, int] = {}
errors: list[Diagnostic] = []
known_types: dict[str, FortranObj] = {}
for child in self.children:
# Skip masking/double checks for interfaces
if child.get_type() == INTERFACE_TYPE_ID:
continue
# Check other variables in current scope
if child.FQSN in fqsn_dict:
if child.sline < fqsn_dict[child.FQSN]:
fqsn_dict[child.FQSN] = child.sline - 1
else:
fqsn_dict[child.FQSN] = child.sline - 1
contains_line = -1
if self.get_type() in (
MODULE_TYPE_ID,
SUBMODULE_TYPE_ID,
SUBROUTINE_TYPE_ID,
FUNCTION_TYPE_ID,
):
contains_line = (
self.contains_start if self.contains_start is not None else self.eline
)
# Detect interface definitions
is_interface = (
self.parent is not None
and self.parent.get_type() == INTERFACE_TYPE_ID
and not self.is_mod_scope()
)
for child in self.children:
if child.name.startswith("#"):
continue
line_number = child.sline - 1
# Check for type definition in scope
def_error, known_types = child.check_definition(
obj_tree, known_types=known_types, interface=is_interface
)
if def_error is not None:
errors.append(def_error)
# Detect contains errors
if contains_line >= child.sline and child.get_type(no_link=True) in (
SUBROUTINE_TYPE_ID,
FUNCTION_TYPE_ID,
):
new_diag = Diagnostic(
line_number,
message="Subroutine/Function definition before CONTAINS statement",
severity=1,
)
errors.append(new_diag)
# Skip masking/double checks for interfaces and members
if (
self.get_type() == INTERFACE_TYPE_ID
or child.get_type() == INTERFACE_TYPE_ID
):
continue
# Check other variables in current scope
if child.FQSN in fqsn_dict and line_number > fqsn_dict[child.FQSN]:
new_diag = Diagnostic(
line_number,
message=f'Variable "{child.name}" declared twice in scope',
severity=1,
find_word=child.name,
)
new_diag.add_related(
path=self.file_ast.path,
line=fqsn_dict[child.FQSN],
message="First declaration",
)
errors.append(new_diag)
continue
# Check for masking from parent scope in subroutines, functions, and blocks
if self.parent is not None and self.get_type() in (
SUBROUTINE_TYPE_ID,
FUNCTION_TYPE_ID,
BLOCK_TYPE_ID,
):
parent_var = find_in_scope(self.parent, child.name, obj_tree)
if parent_var is not None:
# Ignore if function return variable
if (
self.get_type() == FUNCTION_TYPE_ID
and parent_var.FQSN == self.FQSN
):
continue
new_diag = Diagnostic(
line_number,
message=(
f'Variable "{child.name}" masks variable in parent scope'
),
severity=2,
find_word=child.name,
)
new_diag.add_related(
path=parent_var.file_ast.path,
line=parent_var.sline - 1,
message="First declaration",
)
errors.append(new_diag)
return errors
def check_use(self, obj_tree):
errors = []
last_use_line = -1
for use_stmnt in self.use:
last_use_line = max(last_use_line, use_stmnt.line_number)
if type(use_stmnt) is Import:
if (self.parent is None) or (
self.parent.get_type() != INTERFACE_TYPE_ID
):
new_diag = Diagnostic(
use_stmnt.line_number - 1,
message="IMPORT statement outside of interface",
severity=1,
)
errors.append(new_diag)
continue
if use_stmnt.mod_name not in obj_tree:
new_diag = Diagnostic(
use_stmnt.line_number - 1,
message=f'Module "{use_stmnt.mod_name}" not found in project',
severity=3,
find_word=use_stmnt.mod_name,
)
errors.append(new_diag)
if (self.implicit_line is not None) and (last_use_line >= self.implicit_line):
new_diag = Diagnostic(
self.implicit_line - 1,
message="USE statements after IMPLICIT statement",
severity=1,
find_word="IMPLICIT",
)
errors.append(new_diag)
return errors
def add_subroutine(self, interface_string, no_contains=False):
edits = []
line_number = self.eline - 1
if (self.contains_start is None) and (not no_contains):
first_sub_line = line_number
for child in self.children:
if child.get_type() in (SUBROUTINE_TYPE_ID, FUNCTION_TYPE_ID):
first_sub_line = min(first_sub_line, child.sline - 1)
edits.append(
{
**range_json(first_sub_line, 0, first_sub_line, 0),
"newText": "CONTAINS\n",
}
)
edits.append(
{
**range_json(line_number, 0, line_number, 0),
"newText": interface_string + "\n",
}
)
return self.file_ast.path, edits
|
