1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
(* Copyright (C) 2015-2025 Free Software Foundation, Inc. *)
(* This file is part of GNU Modula-2.
GNU Modula-2 is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GNU Modula-2 is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. *)
IMPLEMENTATION MODULE mcPreprocess ;
FROM SYSTEM IMPORT ADDRESS ;
FROM DynamicStrings IMPORT string, InitString, Mark, KillString, EqualArray, InitStringCharStar,
Dup, ConCat, ConCatChar, RIndex, Slice ;
FROM libc IMPORT system, exit, unlink, printf ;
FROM alists IMPORT alist, initList, killList, includeItemIntoList, foreachItemInListDo ;
FROM M2RTS IMPORT InstallTerminationProcedure ;
FROM FIO IMPORT StdErr, StdOut ;
FROM mcPrintf IMPORT fprintf1 ;
FROM mcOptions IMPORT getVerbose, getCppCommandLine ;
VAR
listOfFiles: alist ;
(*
makeTempFile -
*)
PROCEDURE makeTempFile (ext: String) : String ;
BEGIN
RETURN ConCat (InitString ('/tmp/mctemp.'), ext)
END makeTempFile ;
(*
onExitDelete -
*)
PROCEDURE onExitDelete (filename: String) : String ;
BEGIN
includeItemIntoList (listOfFiles, Dup (filename)) ;
RETURN filename
END onExitDelete ;
(*
removeFile - removes a single file, s.
*)
PROCEDURE removeFile (a: ADDRESS) ;
VAR
s: String ;
BEGIN
s := a ;
IF unlink (string (s))#0
THEN
END
END removeFile ;
(*
removeFiles -
*)
PROCEDURE removeFiles ;
BEGIN
foreachItemInListDo (listOfFiles, removeFile)
END removeFiles ;
(*
preprocessModule - preprocess a file, filename, returning the new filename
of the preprocessed file.
Preprocessing will only occur if requested by the user.
If no preprocessing was requested then filename is returned.
If preprocessing occurs then a temporary file is created
and its name is returned.
All temporary files will be deleted when the compiler exits.
*)
PROCEDURE preprocessModule (filename: String) : String ;
VAR
tempfile,
command,
commandLine: String ;
pos : CARDINAL ;
BEGIN
command := getCppCommandLine () ;
IF EqualArray (command, '')
THEN
RETURN filename
ELSE
tempfile := InitStringCharStar (makeTempFile (InitString ('cpp'))) ;
commandLine := Dup (command) ;
commandLine := ConCat (ConCat (ConCat (ConCatChar (Dup (commandLine), ' '), filename),
Mark (InitString(' -o '))),
tempfile) ;
IF getVerbose ()
THEN
fprintf1 (StdOut, "%s\n", commandLine)
END ;
IF system (string (commandLine))#0
THEN
fprintf1(StdErr, 'C preprocessor failed when preprocessing %s\n', filename) ;
exit(1)
END ;
commandLine := KillString (commandLine) ;
RETURN onExitDelete (tempfile)
END
END preprocessModule ;
BEGIN
listOfFiles := initList () ;
IF NOT InstallTerminationProcedure (removeFiles)
THEN
HALT
END
END mcPreprocess.
|