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252367af DF |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | */ | |
6 | ||
7 | #ifndef lint | |
8 | static char sccsid[] = "@(#)const.c 5.1 (Berkeley) %G%"; | |
9 | #endif not lint | |
10 | ||
9fad0514 PK |
11 | /* |
12 | * pxp - Pascal execution profiler | |
13 | * | |
14 | * Bill Joy UCB | |
15 | * Version 1.2 January 1979 | |
16 | */ | |
17 | ||
18 | #include "0.h" | |
19 | #include "tree.h" | |
20 | ||
f4e01610 | 21 | STATIC int constcnt = -1; |
9fad0514 PK |
22 | |
23 | /* | |
24 | * The const declaration part | |
25 | */ | |
26 | constbeg(l, cline) | |
27 | int l, cline; | |
28 | { | |
29 | ||
30 | line = l; | |
31 | if (nodecl) | |
32 | printoff(); | |
33 | puthedr(); | |
34 | putcm(); | |
35 | ppnl(); | |
36 | indent(); | |
37 | ppkw("const"); | |
38 | ppgoin(DECL); | |
39 | constcnt = 0; | |
40 | setline(cline); | |
41 | } | |
42 | ||
43 | const(cline, cid, cdecl) | |
44 | int cline; | |
45 | char *cid; | |
46 | int *cdecl; | |
47 | { | |
48 | ||
49 | if (constcnt) | |
50 | putcm(); | |
51 | setline(cline); | |
52 | ppitem(); | |
53 | ppid(cid); | |
54 | ppsep(" = "); | |
55 | gconst(cdecl); | |
56 | ppsep(";"); | |
57 | constcnt++; | |
58 | setinfo(cline); | |
59 | putcml(); | |
60 | } | |
61 | ||
62 | constend() | |
63 | { | |
64 | ||
65 | if (constcnt == -1) | |
66 | return; | |
67 | if (nodecl) | |
68 | return; | |
69 | if (constcnt == 0) | |
70 | ppid("{const decls}"); | |
71 | ppgoout(DECL); | |
72 | constcnt = -1; | |
73 | } | |
74 | ||
75 | /* | |
76 | * A constant in an expression | |
77 | * or a declaration. | |
78 | */ | |
79 | gconst(r) | |
80 | int *r; | |
81 | { | |
82 | register *cn; | |
83 | ||
84 | cn = r; | |
85 | loop: | |
86 | if (cn == NIL) { | |
87 | ppid("{constant}"); | |
88 | return; | |
89 | } | |
90 | switch (cn[0]) { | |
91 | default: | |
92 | panic("gconst"); | |
93 | case T_PLUSC: | |
94 | ppop("+"); | |
95 | cn = cn[1]; | |
96 | goto loop; | |
97 | case T_MINUSC: | |
98 | ppop("-"); | |
99 | cn = cn[1]; | |
100 | goto loop; | |
101 | case T_ID: | |
102 | ppid(cn[1]); | |
103 | return; | |
104 | case T_CBINT: | |
105 | case T_CINT: | |
106 | case T_CFINT: | |
107 | ppnumb(cn[1]); | |
108 | if (cn[0] == T_CBINT) | |
109 | ppsep("b"); | |
110 | return; | |
111 | case T_CSTRNG: | |
112 | ppstr(cn[1]); | |
113 | return; | |
114 | } | |
115 | } |