author | mjsousa |
Thu, 27 Nov 2014 13:26:58 +0000 | |
changeset 950 | 935c8b6ba3c5 |
parent 938 | 31e3b3f2eff1 |
child 1041 | 56ebe2a31b5b |
permissions | -rwxr-xr-x |
181 | 1 |
/* |
265
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
2 |
* matiec - a compiler for the programming languages defined in IEC 61131-3 |
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
3 |
* |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
4 |
* Copyright (C) 2003-2012 Mario de Sousa (msousa@fe.up.pt) |
279
c0453b7f99df
Re-generated std lib related code, with updated headers, updated all forgotten headers
Edouard Tisserant
parents:
265
diff
changeset
|
5 |
* Copyright (C) 2007-2011 Laurent Bessard and Edouard Tisserant |
265
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
6 |
* |
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
7 |
* This program is free software: you can redistribute it and/or modify |
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
8 |
* it under the terms of the GNU General Public License as published by |
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
9 |
* the Free Software Foundation, either version 3 of the License, or |
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
10 |
* (at your option) any later version. |
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
11 |
* |
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
12 |
* This program is distributed in the hope that it will be useful, |
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
13 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
14 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
15 |
* GNU General Public License for more details. |
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
16 |
* |
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
17 |
* You should have received a copy of the GNU General Public License |
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
18 |
* along with this program. If not, see <http://www.gnu.org/licenses/>. |
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
19 |
* |
181 | 20 |
* |
21 |
* This code is made available on the understanding that it will not be |
|
22 |
* used in safety-critical situations without a full and competent review. |
|
23 |
*/ |
|
24 |
||
25 |
/* |
|
265
4d222f46f8cc
Updating license info (with Edouard's permission for relevant files).
Mario de Sousa <msousa@fe.up.pt>
parents:
238
diff
changeset
|
26 |
* An IEC 61131-3 compiler. |
181 | 27 |
* |
28 |
* Based on the |
|
29 |
* FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10) |
|
30 |
* |
|
31 |
*/ |
|
32 |
||
33 |
/* Determine the data type of a variable. |
|
34 |
* The variable may be a simple variable, a function block instance, a |
|
35 |
* struture element within a data structured type (a struct or a fb), or |
|
36 |
* an array element. |
|
37 |
* A mixture of array element of a structure element of a structure element |
|
38 |
* of a .... is also suported! |
|
39 |
* |
|
40 |
* example: |
|
41 |
* window.points[1].coordinate.x |
|
42 |
* window.points[1].colour |
|
43 |
* etc... ARE ALLOWED! |
|
44 |
* |
|
45 |
* This class must be passed the scope within which the |
|
46 |
* variable was declared, and the variable name... |
|
321
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
47 |
* |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
48 |
* |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
49 |
* |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
50 |
* |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
51 |
* |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
52 |
* This class has several members, depending on the exact data the caller |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
53 |
* is looking for... |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
54 |
* |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
55 |
* - item i: we can get either the name of the data type(A), |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
56 |
* or it's declaration (B) |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
57 |
* (notice however that some variables belong to a data type that does |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
58 |
* not have a name, only a declaration as in |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
59 |
* VAR a: ARRAY [1..3] of INT; END_VAR |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
60 |
* ) |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
61 |
* - item ii: we can get either the direct data type (1), |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
62 |
* or the base type (2) |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
63 |
* |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
64 |
* By direct type, I mean the data type of the variable. By base type, I |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
65 |
* mean the data type on which the direct type is based on. For example, in |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
66 |
* a subrange on INT, the direct type is the subrange itself, while the |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
67 |
* base type is INT. |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
68 |
* e.g. |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
69 |
* This means that if we find that the variable is of type MY_INT, |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
70 |
* which was previously declared to be |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
71 |
* TYPE MY_INT: INT := 9; |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
72 |
* option (1) will return MY_INT |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
73 |
* option (2) will return INT |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
74 |
* |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
75 |
* |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
76 |
* Member functions: |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
77 |
* ================ |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
78 |
* get_basetype_id() ---> returns 2A (implemented, although currently it is not needed! ) |
321
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
79 |
* get_basetype_decl() ---> returns 2B |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
80 |
* get_type_id() ---> returns 1A |
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
81 |
* |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
82 |
* Since we haven't yet needed it, we don't yet implement |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
83 |
* get_type_decl() ---> returns 1B |
321
a96399ab57c2
Add better comments, and change name of functions to clarify what they do.
Mario de Sousa <msousa@fe.up.pt>
parents:
279
diff
changeset
|
84 |
*/ |
181 | 85 |
|
86 |
||
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
87 |
|
181 | 88 |
#include "absyntax_utils.hh" |
89 |
||
90 |
||
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
91 |
void search_varfb_instance_type_c::init(void) { |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
92 |
this->current_type_id = NULL; |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
93 |
this->current_basetype_id = NULL; |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
94 |
this->current_basetype_decl = NULL; |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
95 |
this->current_field_selector = NULL; |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
96 |
} |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
97 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
98 |
|
181 | 99 |
search_varfb_instance_type_c::search_varfb_instance_type_c(symbol_c *search_scope): search_var_instance_decl(search_scope) { |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
100 |
this->init(); |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
101 |
} |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
102 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
103 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
104 |
/* We expect to be passed a symbolic_variable_c */ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
105 |
symbol_c *search_varfb_instance_type_c::get_type_id(symbol_c *variable_name) { |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
106 |
this->init(); |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
107 |
variable_name->accept(*this); |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
108 |
return current_type_id; |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
109 |
} |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
110 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
111 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
112 |
symbol_c *search_varfb_instance_type_c::get_basetype_id(symbol_c *variable_name) { |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
113 |
this->init(); |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
114 |
variable_name->accept(*this); |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
115 |
return current_basetype_id; |
181 | 116 |
} |
117 |
||
372
25332e048742
Implement get_type_decl(), as it seems Manuele will need it later...
Mario de Sousa <msousa@fe.up.pt>
parents:
371
diff
changeset
|
118 |
|
25332e048742
Implement get_type_decl(), as it seems Manuele will need it later...
Mario de Sousa <msousa@fe.up.pt>
parents:
371
diff
changeset
|
119 |
symbol_c *search_varfb_instance_type_c::get_basetype_decl(symbol_c *variable_name) { |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
120 |
this->init(); |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
121 |
variable_name->accept(*this); |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
122 |
return current_basetype_decl; |
372
25332e048742
Implement get_type_decl(), as it seems Manuele will need it later...
Mario de Sousa <msousa@fe.up.pt>
parents:
371
diff
changeset
|
123 |
} |
25332e048742
Implement get_type_decl(), as it seems Manuele will need it later...
Mario de Sousa <msousa@fe.up.pt>
parents:
371
diff
changeset
|
124 |
|
25332e048742
Implement get_type_decl(), as it seems Manuele will need it later...
Mario de Sousa <msousa@fe.up.pt>
parents:
371
diff
changeset
|
125 |
|
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
126 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
127 |
|
420
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
128 |
/*************************/ |
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
129 |
/* B.1 - Common elements */ |
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
130 |
/*************************/ |
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
131 |
/*******************************************/ |
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
132 |
/* B 1.1 - Letters, digits and identifiers */ |
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
133 |
/*******************************************/ |
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
134 |
// SYM_TOKEN(identifier_c) |
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
135 |
void *search_varfb_instance_type_c::visit(identifier_c *variable_name) { |
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
136 |
/* symbol should be a variable name!! */ |
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
137 |
/* Note: although the method is called get_decl(), it is getting the declaration of the variable, which for us is the type_id of that variable! */ |
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
138 |
current_type_id = search_var_instance_decl.get_decl (variable_name); |
718
a9f8cc778444
Make search_base_type_c a singleton!
Mario de Sousa <msousa@fe.up.pt>
parents:
693
diff
changeset
|
139 |
current_basetype_decl = search_base_type_c::get_basetype_decl(current_type_id); |
a9f8cc778444
Make search_base_type_c a singleton!
Mario de Sousa <msousa@fe.up.pt>
parents:
693
diff
changeset
|
140 |
current_basetype_id = search_base_type_c::get_basetype_id (current_type_id); |
420
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
141 |
|
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
142 |
/* What if the variable has not been declared? Then this should not be a compiler error! |
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
143 |
* However, currently stage 2 of the compiler already detects when variables have not been delcared, |
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
144 |
* so if the variable's declaration is not found, then that means that we have an internal compiler error! |
616
0c7663fdc8d3
Aloow use of SFC STEPs as variables.
Mario de Sousa <msousa@fe.up.pt>
parents:
540
diff
changeset
|
145 |
* |
0c7663fdc8d3
Aloow use of SFC STEPs as variables.
Mario de Sousa <msousa@fe.up.pt>
parents:
540
diff
changeset
|
146 |
* Actually, the above is not true anymore. See the use of the any_symbolic_variable in iec_bison.yy |
0c7663fdc8d3
Aloow use of SFC STEPs as variables.
Mario de Sousa <msousa@fe.up.pt>
parents:
540
diff
changeset
|
147 |
* - when defining the delay of a delayed action association in SFC |
0c7663fdc8d3
Aloow use of SFC STEPs as variables.
Mario de Sousa <msousa@fe.up.pt>
parents:
540
diff
changeset
|
148 |
* - in program connections inside configurations (will this search_varfb_instance_type_c class be called to handle this??) |
420
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
149 |
*/ |
616
0c7663fdc8d3
Aloow use of SFC STEPs as variables.
Mario de Sousa <msousa@fe.up.pt>
parents:
540
diff
changeset
|
150 |
// if (NULL == current_type_id) ERROR; |
420
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
151 |
|
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
152 |
return NULL; |
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
153 |
} |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
154 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
155 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
156 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
157 |
|
181 | 158 |
|
159 |
/********************************/ |
|
160 |
/* B 1.3.3 - Derived data types */ |
|
161 |
/********************************/ |
|
162 |
/* identifier ':' array_spec_init */ |
|
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
163 |
/* NOTE: I don't think this will ever get called, since in the visit method for array_variable_c |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
164 |
* we use the basetype_decl for recursively calling this class, and the base type should never be a |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
165 |
* array_type_declaration_c, but for now, let's leave it in... |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
166 |
*/ |
181 | 167 |
void *search_varfb_instance_type_c::visit(array_type_declaration_c *symbol) { |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
168 |
ERROR; |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
169 |
return NULL; |
181 | 170 |
} |
171 |
||
238
0919986a5c98
Bug when trying to get type of elements in a big complex structure fixed
laurent
parents:
235
diff
changeset
|
172 |
/* array_specification [ASSIGN array_initialization] */ |
181 | 173 |
/* array_initialization may be NULL ! */ |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
174 |
/* NOTE: I don't think this will ever get called, since in the visit method for array_variable_c |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
175 |
* we use the basetype_decl for recursively calling this class, and the base type should never be a |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
176 |
* array_spec_init_c, but for now, let's leave it in... |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
177 |
*/ |
181 | 178 |
void *search_varfb_instance_type_c::visit(array_spec_init_c *symbol) { |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
179 |
/* Note that the 'array_specification' may be either an identifier of a previsously defined array type, |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
180 |
* or an array_specification_c, so we can not stop here and simply return a array_spec_init_c, |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
181 |
* especially if we are looking for the base class! |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
182 |
*/ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
183 |
ERROR; |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
184 |
return NULL; |
181 | 185 |
} |
238
0919986a5c98
Bug when trying to get type of elements in a big complex structure fixed
laurent
parents:
235
diff
changeset
|
186 |
|
181 | 187 |
/* ARRAY '[' array_subrange_list ']' OF non_generic_type_name */ |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
188 |
/* NOTE: This method will be reached after being called from the |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
189 |
* search_varfb_instance_type_c::visit(array_variable_c *symbol) |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
190 |
* method, so we must return the data type of the data stored in the array, |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
191 |
* and not the data type of the array itself! |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
192 |
*/ |
181 | 193 |
void *search_varfb_instance_type_c::visit(array_specification_c *symbol) { |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
194 |
/* found the type of the element we were looking for! */ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
195 |
current_type_id = symbol->non_generic_type_name; |
718
a9f8cc778444
Make search_base_type_c a singleton!
Mario de Sousa <msousa@fe.up.pt>
parents:
693
diff
changeset
|
196 |
current_basetype_decl = search_base_type_c::get_basetype_decl(current_type_id); |
a9f8cc778444
Make search_base_type_c a singleton!
Mario de Sousa <msousa@fe.up.pt>
parents:
693
diff
changeset
|
197 |
current_basetype_id = search_base_type_c::get_basetype_id (current_type_id); |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
198 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
199 |
return NULL; |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
200 |
} |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
201 |
|
181 | 202 |
|
203 |
/* structure_type_name ':' structure_specification */ |
|
371
926490780952
Cleaning up: Getting some sense into the code handling structures.
Mario de Sousa <msousa@fe.up.pt>
parents:
367
diff
changeset
|
204 |
/* NOTE: this is only used inside a TYPE ... END_TYPE declaration. |
926490780952
Cleaning up: Getting some sense into the code handling structures.
Mario de Sousa <msousa@fe.up.pt>
parents:
367
diff
changeset
|
205 |
* It is never used directly when declaring a new variable! |
926490780952
Cleaning up: Getting some sense into the code handling structures.
Mario de Sousa <msousa@fe.up.pt>
parents:
367
diff
changeset
|
206 |
*/ |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
207 |
/* NOTE: I don't think this will ever get called, since in the visit method for structured_variable_c |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
208 |
* we use the basetype_decl for recursively calling this class, and the base type should never be a |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
209 |
* structure_type_declaration_c, but for now, let's leave it in... |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
210 |
*/ |
181 | 211 |
void *search_varfb_instance_type_c::visit(structure_type_declaration_c *symbol) { |
830
6f45ec6ed011
Handle buggy source code gracefully (do not bork when non-array variable is used as an array. e.g: int_var[42]:= 33)
mjsousa
parents:
718
diff
changeset
|
212 |
if (NULL == current_field_selector) return NULL; // the source code has a datatype consistency bug that will be caught later!! |
6f45ec6ed011
Handle buggy source code gracefully (do not bork when non-array variable is used as an array. e.g: int_var[42]:= 33)
mjsousa
parents:
718
diff
changeset
|
213 |
|
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
214 |
symbol->structure_specification->accept(*this); |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
215 |
return NULL; |
181 | 216 |
/* NOTE: structure_specification will point to either a |
217 |
* initialized_structure_c |
|
218 |
* OR A |
|
219 |
* structure_element_declaration_list_c |
|
220 |
*/ |
|
221 |
} |
|
222 |
||
223 |
/* structure_type_name ASSIGN structure_initialization */ |
|
224 |
/* structure_initialization may be NULL ! */ |
|
225 |
// SYM_REF2(initialized_structure_c, structure_type_name, structure_initialization) |
|
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
226 |
/* NOTE: only the initialized structure is never used when declaring a new variable instance */ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
227 |
/* NOTE: I don't think this will ever get called, since in the visit method for structured_variable_c |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
228 |
* we use the basetype_decl for recursively calling this class, and the base type should never be a |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
229 |
* initialized_structure_c, but for now, let's leave it in... |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
230 |
*/ |
181 | 231 |
void *search_varfb_instance_type_c::visit(initialized_structure_c *symbol) { |
830
6f45ec6ed011
Handle buggy source code gracefully (do not bork when non-array variable is used as an array. e.g: int_var[42]:= 33)
mjsousa
parents:
718
diff
changeset
|
232 |
if (NULL == current_field_selector) return NULL; // the source code has a datatype consistency bug that will be caught later!! |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
233 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
234 |
/* recursively find out the data type of current_field_selector... */ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
235 |
symbol->structure_type_name->accept(*this); |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
236 |
return NULL; |
382
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
237 |
} |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
238 |
|
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
239 |
/* helper symbol for structure_declaration */ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
240 |
/* structure_declaration: STRUCT structure_element_declaration_list END_STRUCT */ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
241 |
/* structure_element_declaration_list structure_element_declaration ';' */ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
242 |
void *search_varfb_instance_type_c::visit(structure_element_declaration_list_c *symbol) { |
830
6f45ec6ed011
Handle buggy source code gracefully (do not bork when non-array variable is used as an array. e.g: int_var[42]:= 33)
mjsousa
parents:
718
diff
changeset
|
243 |
if (NULL == current_field_selector) return NULL; // the source code has a datatype consistency bug that will be caught later!! |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
244 |
|
382
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
245 |
/* now search the structure declaration */ |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
246 |
for(int i = 0; i < symbol->n; i++) { |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
247 |
symbol->elements[i]->accept(*this); |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
248 |
} |
619
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
249 |
|
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
250 |
return NULL; |
382
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
251 |
} |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
252 |
|
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
253 |
/* structure_element_name ':' spec_init */ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
254 |
void *search_varfb_instance_type_c::visit(structure_element_declaration_c *symbol) { |
830
6f45ec6ed011
Handle buggy source code gracefully (do not bork when non-array variable is used as an array. e.g: int_var[42]:= 33)
mjsousa
parents:
718
diff
changeset
|
255 |
if (NULL == current_field_selector) return NULL; // the source code has a datatype consistency bug that will be caught later!! |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
256 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
257 |
if (compare_identifiers(symbol->structure_element_name, current_field_selector) == 0) { |
382
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
258 |
/* found the type of the element we were looking for! */ |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
259 |
current_type_id = symbol->spec_init; |
718
a9f8cc778444
Make search_base_type_c a singleton!
Mario de Sousa <msousa@fe.up.pt>
parents:
693
diff
changeset
|
260 |
current_basetype_decl = search_base_type_c::get_basetype_decl(current_type_id); |
a9f8cc778444
Make search_base_type_c a singleton!
Mario de Sousa <msousa@fe.up.pt>
parents:
693
diff
changeset
|
261 |
current_basetype_id = search_base_type_c::get_basetype_id (current_type_id); |
382
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
262 |
} |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
263 |
|
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
264 |
/* Did not find the type of the element we were looking for! */ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
265 |
/* Will keep looking... */ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
266 |
return NULL; |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
267 |
} |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
268 |
|
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
269 |
/* helper symbol for structure_initialization */ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
270 |
/* structure_initialization: '(' structure_element_initialization_list ')' */ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
271 |
/* structure_element_initialization_list ',' structure_element_initialization */ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
272 |
void *search_varfb_instance_type_c::visit(structure_element_initialization_list_c *symbol) {ERROR; return NULL;} /* should never get called... */ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
273 |
/* structure_element_name ASSIGN value */ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
274 |
void *search_varfb_instance_type_c::visit(structure_element_initialization_c *symbol) {ERROR; return NULL;} /* should never get called... */ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
275 |
|
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
276 |
|
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
277 |
/*********************/ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
278 |
/* B 1.4 - Variables */ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
279 |
/*********************/ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
280 |
// SYM_REF1(symbolic_variable_c, var_name) |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
281 |
void *search_varfb_instance_type_c::visit(symbolic_variable_c *symbol) { |
420
866eb35e4e14
Fix search_varfb_instance_decl to be able to find variables and FB when only given an identifier.
Mario de Sousa <msousa@fe.up.pt>
parents:
417
diff
changeset
|
282 |
symbol->var_name->accept(*this); |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
283 |
return NULL; |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
284 |
} |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
285 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
286 |
/********************************************/ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
287 |
/* B.1.4.1 Directly Represented Variables */ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
288 |
/********************************************/ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
289 |
// SYM_TOKEN(direct_variable_c) |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
290 |
/* We do not yet handle this. Will we ever need to handle it, as the data type of the direct variable is |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
291 |
* directly obtainable from the syntax of the direct variable itself? |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
292 |
*/ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
293 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
294 |
/*************************************/ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
295 |
/* B 1.4.2 - Multi-element variables */ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
296 |
/*************************************/ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
297 |
/* subscripted_variable '[' subscript_list ']' */ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
298 |
// SYM_REF2(array_variable_c, subscripted_variable, subscript_list) |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
299 |
/* NOTE: when passed a array_variable_c, which represents some IEC61131-3 code similar to X[42] |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
300 |
* we must return the data type of the value _stored_ in the array. |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
301 |
* If you want to get the data type of the array itself (i.e. just the X variable, without the [42]) |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
302 |
* then this class must be called with the identifier_c 'X'. |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
303 |
*/ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
304 |
void *search_varfb_instance_type_c::visit(array_variable_c *symbol) { |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
305 |
/* determine the data type of the subscripted_variable... |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
306 |
* This should be an array_specification_c |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
307 |
* ARRAY [xx..yy] OF Stored_Data_Type |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
308 |
*/ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
309 |
symbol->subscripted_variable->accept(*this); |
619
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
310 |
symbol_c *basetype_decl = current_basetype_decl; |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
311 |
this->init(); /* set all current_*** pointers to NULL ! */ |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
312 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
313 |
/* Now we determine the 'Stored_Data_Type', i.e. the data type of the variable stored in the array. */ |
619
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
314 |
if (NULL != basetype_decl) { |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
315 |
basetype_decl->accept(*this); |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
316 |
} |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
317 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
318 |
return NULL; |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
319 |
} |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
320 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
321 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
322 |
/* record_variable '.' field_selector */ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
323 |
/* WARNING: input and/or output variables of function blocks |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
324 |
* may be accessed as fields of a structured variable! |
619
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
325 |
* Code handling a structured_variable_c must take this into account! |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
326 |
* (i.e. that a FB instance may be accessed as a structured variable)! |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
327 |
* |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
328 |
* WARNING: Status bit (.X) and activation time (.T) of STEPS in SFC diagrams |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
329 |
* may be accessed as fields of a structured variable! |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
330 |
* Code handling a structured_variable_c must take this into account |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
331 |
* (i.e. that an SFC STEP may be accessed as a structured variable)! |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
332 |
*/ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
333 |
// SYM_REF2(structured_variable_c, record_variable, field_selector) |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
334 |
void *search_varfb_instance_type_c::visit(structured_variable_c *symbol) { |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
335 |
symbol->record_variable->accept(*this); |
619
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
336 |
symbol_c *basetype_decl = current_basetype_decl; |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
337 |
this->init(); /* set all current_*** pointers to NULL ! */ |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
338 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
339 |
/* Now we search for the data type of the field... But only if we were able to determine the data type of the variable */ |
619
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
340 |
if (NULL != basetype_decl) { |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
341 |
current_field_selector = symbol->field_selector; |
619
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
342 |
basetype_decl->accept(*this); |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
343 |
current_field_selector = NULL; |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
344 |
} |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
345 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
346 |
return NULL; |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
347 |
} |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
348 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
349 |
|
382
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
350 |
|
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
351 |
/**************************************/ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
352 |
/* B.1.5 - Program organization units */ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
353 |
/**************************************/ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
354 |
/*****************************/ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
355 |
/* B 1.5.2 - Function Blocks */ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
356 |
/*****************************/ |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
357 |
|
382
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
358 |
/* FUNCTION_BLOCK derived_function_block_name io_OR_other_var_declarations function_block_body END_FUNCTION_BLOCK */ |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
359 |
// SYM_REF4(function_block_declaration_c, fblock_name, var_declarations, fblock_body, unused) |
ac6dfec701c9
Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax
laurent
parents:
377
diff
changeset
|
360 |
void *search_varfb_instance_type_c::visit(function_block_declaration_c *symbol) { |
830
6f45ec6ed011
Handle buggy source code gracefully (do not bork when non-array variable is used as an array. e.g: int_var[42]:= 33)
mjsousa
parents:
718
diff
changeset
|
361 |
if (NULL == current_field_selector) return NULL; // the source code has a datatype consistency bug that will be caught later!! |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
362 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
363 |
/* now search the function block declaration for the variable... */ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
364 |
/* If not found, these pointers will all be set to NULL!! */ |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
365 |
search_var_instance_decl_c search_decl(symbol); |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
366 |
current_type_id = search_decl.get_decl(current_field_selector); |
718
a9f8cc778444
Make search_base_type_c a singleton!
Mario de Sousa <msousa@fe.up.pt>
parents:
693
diff
changeset
|
367 |
current_basetype_decl = search_base_type_c::get_basetype_decl(current_type_id); |
a9f8cc778444
Make search_base_type_c a singleton!
Mario de Sousa <msousa@fe.up.pt>
parents:
693
diff
changeset
|
368 |
current_basetype_id = search_base_type_c::get_basetype_id (current_type_id); |
417
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
369 |
|
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
370 |
return NULL; |
d48f53715f77
Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
parents:
382
diff
changeset
|
371 |
} |
619
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
372 |
|
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
373 |
|
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
374 |
|
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
375 |
/*********************************************/ |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
376 |
/* B.1.6 Sequential function chart elements */ |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
377 |
/*********************************************/ |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
378 |
/* INITIAL_STEP step_name ':' action_association_list END_STEP */ |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
379 |
// SYM_REF2(initial_step_c, step_name, action_association_list) |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
380 |
/* NOTE: this method may be called from visit(structured_variable_c *symbol) method| */ |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
381 |
void *search_varfb_instance_type_c::visit(initial_step_c *symbol) { |
830
6f45ec6ed011
Handle buggy source code gracefully (do not bork when non-array variable is used as an array. e.g: int_var[42]:= 33)
mjsousa
parents:
718
diff
changeset
|
382 |
if (NULL == current_field_selector) return NULL; // the source code has a datatype consistency bug that will be caught later!! |
619
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
383 |
|
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
384 |
identifier_c T("T"); |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
385 |
identifier_c X("X"); |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
386 |
|
693
51a2fa6441b9
Prepare to delete search_constant_type_c -> Move the static variables from search_constant_type_c to get_datatype_info_c
Mario de Sousa <msousa@fe.up.pt>
parents:
625
diff
changeset
|
387 |
/* Hard code the datatypes of the implicit variables Stepname.X and Stepname.T */ |
619
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
388 |
if (compare_identifiers(&T, current_field_selector) == 0) |
693
51a2fa6441b9
Prepare to delete search_constant_type_c -> Move the static variables from search_constant_type_c to get_datatype_info_c
Mario de Sousa <msousa@fe.up.pt>
parents:
625
diff
changeset
|
389 |
current_type_id = &get_datatype_info_c::time_type_name; |
619
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
390 |
if (compare_identifiers(&X, current_field_selector) == 0) |
693
51a2fa6441b9
Prepare to delete search_constant_type_c -> Move the static variables from search_constant_type_c to get_datatype_info_c
Mario de Sousa <msousa@fe.up.pt>
parents:
625
diff
changeset
|
391 |
current_type_id = &get_datatype_info_c::bool_type_name; |
619
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
392 |
|
718
a9f8cc778444
Make search_base_type_c a singleton!
Mario de Sousa <msousa@fe.up.pt>
parents:
693
diff
changeset
|
393 |
current_basetype_decl = search_base_type_c::get_basetype_decl(current_type_id); |
a9f8cc778444
Make search_base_type_c a singleton!
Mario de Sousa <msousa@fe.up.pt>
parents:
693
diff
changeset
|
394 |
current_basetype_id = search_base_type_c::get_basetype_id (current_type_id); |
619
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
395 |
|
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
396 |
return NULL; |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
397 |
} |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
398 |
|
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
399 |
|
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
400 |
/* STEP step_name ':' action_association_list END_STEP */ |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
401 |
// SYM_REF2(step_c, step_name, action_association_list) |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
402 |
/* NOTE: this method may be called from visit(structured_variable_c *symbol) method| */ |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
403 |
void *search_varfb_instance_type_c::visit(step_c *symbol) { |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
404 |
/* The code here should be identicial to the code in the visit(initial_step_c *) visitor! So we simply call the other visitor! */ |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
405 |
initial_step_c initial_step(NULL, NULL); |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
406 |
return initial_step.accept(*this); |
f8c9ac5c529a
Support for data types of STEP.T and STEP.X in SFCs
Mario de Sousa <msousa@fe.up.pt>
parents:
616
diff
changeset
|
407 |
} |
936
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
408 |
|
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
409 |
|
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
410 |
/***************************************/ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
411 |
/* B.3 - Language ST (Structured Text) */ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
412 |
/***************************************/ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
413 |
/***********************/ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
414 |
/* B 3.1 - Expressions */ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
415 |
/***********************/ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
416 |
/* SYM_REF1(deref_expression_c, exp) --> an extension to the IEC 61131-3 standard - based on the IEC 61131-3 v3 standard. Returns address of the varible! */ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
417 |
void *search_varfb_instance_type_c::visit(deref_expression_c *symbol) { |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
418 |
symbol->exp->accept(*this); |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
419 |
symbol_c *basetype_decl = current_basetype_decl; |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
420 |
this->init(); /* set all current_*** pointers to NULL ! */ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
421 |
|
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
422 |
/* Check whether the expression if a REF_TO datatype, and if so, set the new datatype to the datatype it references! */ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
423 |
/* Determine whether the datatype is a ref_spec_c, as this is the class used as the */ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
424 |
/* canonical/base datatype of REF_TO types (see search_base_type_c ...) */ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
425 |
ref_spec_c * ref_spec = dynamic_cast<ref_spec_c *>(basetype_decl); |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
426 |
if (NULL != ref_spec) { |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
427 |
current_basetype_decl = search_base_type_c::get_basetype_decl(ref_spec->type_name); |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
428 |
current_basetype_id = search_base_type_c::get_basetype_id (ref_spec->type_name); |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
429 |
} |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
430 |
|
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
431 |
return NULL; |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
432 |
} |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
433 |
|
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
434 |
|
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
435 |
/* SYM_REF1(deref_operator_c, exp) --> an extension to the IEC 61131-3 standard - based on the IEC 61131-3 v3 standard. Returns address of the varible! */ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
436 |
void *search_varfb_instance_type_c::visit(deref_operator_c *symbol) { |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
437 |
symbol->exp->accept(*this); |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
438 |
symbol_c *basetype_decl = current_basetype_decl; |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
439 |
this->init(); /* set all current_*** pointers to NULL ! */ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
440 |
|
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
441 |
/* Check whether the expression if a REF_TO datatype, and if so, set the new datatype to the datatype it references! */ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
442 |
/* Determine whether the datatype is a ref_spec_c, as this is the class used as the */ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
443 |
/* canonical/base datatype of REF_TO types (see search_base_type_c ...) */ |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
444 |
ref_spec_c * ref_spec = dynamic_cast<ref_spec_c *>(basetype_decl); |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
445 |
if (NULL != ref_spec) { |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
446 |
current_basetype_decl = search_base_type_c::get_basetype_decl(ref_spec->type_name); |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
447 |
current_basetype_id = search_base_type_c::get_basetype_id (ref_spec->type_name); |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
448 |
} |
0f7bcc160568
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB.
mjsousa
parents:
830
diff
changeset
|
449 |
|
938
31e3b3f2eff1
Do the full fill_candidate/narrow_datatype algorithm for all fields of a structured variable in the fill_candidate_datatypes_c
mjsousa
parents:
936
diff
changeset
|
450 |
return NULL; |
31e3b3f2eff1
Do the full fill_candidate/narrow_datatype algorithm for all fields of a structured variable in the fill_candidate_datatypes_c
mjsousa
parents:
936
diff
changeset
|
451 |
} |