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1 | /* -*-c-*- |
2 | * | |
3 | * Test program for the keyword-argument machinery | |
4 | * | |
5 | * (c) 2015 Straylight/Edgeware | |
6 | */ | |
7 | ||
8 | /*----- Licensing notice --------------------------------------------------* | |
9 | * | |
10 | * This file is part of the Sensible Object Design, an object system for C. | |
11 | * | |
12 | * SOD is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * SOD is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with SOD; if not, write to the Free Software Foundation, | |
24 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
25 | */ | |
26 | ||
27 | #include <setjmp.h> | |
28 | #include <stdarg.h> | |
29 | #include <stdlib.h> | |
30 | #include <stdio.h> | |
31 | ||
32 | #include "keyword.h" | |
33 | ||
34 | static void show_kwval(const char *what, int f, const char *fmt, ...) | |
35 | { | |
36 | va_list ap; | |
37 | ||
38 | printf(" %s = ", what); | |
39 | if (!f) | |
40 | puts("<unset>"); | |
41 | else { | |
42 | va_start(ap, fmt); | |
43 | vprintf(fmt, ap); | |
44 | va_end(ap); | |
45 | putchar('\n'); | |
46 | } | |
47 | } | |
48 | ||
49 | #define SHOW(mem, fmt) show_kwval(#mem, kw.mem##_suppliedp, fmt, kw.mem) | |
50 | ||
51 | #define t1_KWSET(_) \ | |
52 | _(int, x, 0) \ | |
53 | _(double, y, 69.0) \ | |
54 | _(const char *, z, "default") | |
55 | KWSET_STRUCT(t1); | |
56 | static KWSET_PARSEFN(t1) | |
57 | static KWCALL void t1(const char *what, KWTAIL) | |
58 | { | |
59 | KWPARSE(t1); | |
60 | ||
61 | printf("t1: %s\n", what); | |
62 | SHOW(x, "%d"); | |
63 | SHOW(y, "%g"); | |
64 | SHOW(z, "`%s'"); | |
65 | } | |
66 | ||
67 | static KWCALL void t2(const char *what, ...) | |
68 | { | |
69 | va_list ap; | |
70 | ||
71 | printf("t2: %s\n", what); | |
72 | va_start(ap, what); | |
73 | t1("via t2", KWARGS(K_VALIST(ap))); | |
74 | va_end(ap); | |
75 | } | |
76 | ||
77 | #define t3_KWSET(_) \ | |
78 | _(int, q, 0) \ | |
79 | t1_KWSET(_) | |
80 | KWSET_STRUCT(t3); | |
81 | static KWSET_PARSEFN(t3) | |
82 | static KWCALL void t3(const char *what, KWTAIL) | |
83 | { | |
84 | struct kwval v[KW_COUNT(t1)]; | |
85 | size_t n = 0; | |
86 | KWPARSE(t3); | |
87 | ||
88 | printf("t3: %s\n", what); | |
89 | SHOW(q, "%c"); | |
90 | SHOW(z, "`%s'"); | |
91 | ||
92 | KW_COPY(t3, t1, kw, v, n); | |
93 | t1("via t3", KWARGS(K_TAB(v, n) | |
94 | K(x, kw.x_suppliedp ? kw.x + 1 : 42))); | |
95 | } | |
96 | ||
97 | /* The @KW_TEST@ machinery from the manpage... */ | |
98 | #define KWARGS_TEST(k, val) KWARGS(K(k, val) K(kw.unknown, 0)) | |
99 | ||
100 | static jmp_buf kw_test_jmp; | |
101 | ||
102 | static void kw_test_unknown(const char *set, const char *kw) | |
103 | { | |
104 | if (strcmp(kw, "kw.unknown") == 0) longjmp(kw_test_jmp, 1); | |
105 | else longjmp(kw_test_jmp, 2); | |
106 | } | |
107 | ||
108 | #define KW_TEST(flag, set, call) do { \ | |
109 | kw_unkhookfn *oldunk = kw_unkhook; \ | |
110 | kw_unkhook = kw_test_unknown; \ | |
111 | switch (setjmp(kw_test_jmp)) { \ | |
112 | case 0: call; abort(); \ | |
113 | case 1: flag = 1; break; \ | |
114 | case 2: flag = 0; break; \ | |
115 | default: abort(); \ | |
116 | } \ | |
117 | kw_unkhook = oldunk; \ | |
118 | } while (0) | |
119 | /* END */ | |
120 | ||
121 | int main(void) | |
122 | { | |
123 | t1("no args", NO_KWARGS); | |
124 | t1("some args", KWARGS(K(z, "set") K(x, 42))); | |
125 | ||
126 | t2("indirection", KWARGS(K(y, 6.283))); | |
127 | ||
128 | t3("no args", NO_KWARGS); | |
129 | t3("x initially 19", KWARGS(K(q, 't') K(x, 19) K(z, "boing"))); | |
130 | ||
131 | #define TEST_KWTEST(kw, val) do { \ | |
132 | int f_; \ | |
133 | KW_TEST(f_, t3, t3(0, KWARGS_TEST(kw, val))); \ | |
134 | printf("t3 arg `%s' %s\n", #kw, f_ ? "present" : "absent"); \ | |
135 | } while (0) | |
136 | TEST_KWTEST(q, '!'); | |
137 | TEST_KWTEST(z, "splat"); | |
138 | TEST_KWTEST(nope, 0); | |
139 | ||
140 | return (0); | |
141 | } | |
142 | ||
143 | /*----- That's all, folks -------------------------------------------------*/ |