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comparison macro.c @ 184:d359d9b86327

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Don't rely on anonymous unions. They break on... dun dun dun... Solaris. Such a shock.
author David A. Holland
date Fri, 12 Jun 2015 03:35:01 -0400
parents 6119608a9817
children c8d4ab9aeff0
comparison
equal deleted inserted replaced
183:4c3375895c6e 184:d359d9b86327
30 #include <stdint.h> 30 #include <stdint.h>
31 #include <stdio.h> 31 #include <stdio.h>
32 #include <stdlib.h> 32 #include <stdlib.h>
33 #include <string.h> 33 #include <string.h>
34 34
35 #include "union.h"
35 #include "array.h" 36 #include "array.h"
36 #include "mode.h" 37 #include "mode.h"
37 #include "place.h" 38 #include "place.h"
38 #include "macro.h" 39 #include "macro.h"
39 #include "output.h" 40 #include "output.h"
40 41
41 struct expansionitem { 42 struct expansionitem {
42 enum { EI_STRING, EI_PARAM, EI_FILE, EI_LINE } itemtype; 43 enum { EI_STRING, EI_PARAM, EI_FILE, EI_LINE } itemtype;
43 union { 44 union {
44 char *string; /* EI_STRING */ 45 char *ei_string; /* for EI_STRING */
45 unsigned param; /* EI_PARAM */ 46 unsigned ei_param; /* for EI_PARAM */
46 }; 47 } UN;
47 }; 48 };
48 DECLARRAY(expansionitem, static UNUSED); 49 DECLARRAY(expansionitem, static UNUSED);
49 DEFARRAY(expansionitem, static); 50 DEFARRAY(expansionitem, static);
51
52 #ifdef NEED_UNION_ACCESSORS
53 #define ei_string un.ei_string
54 #define ei_param un.ei_param
55 #endif
56
50 57
51 struct macro { 58 struct macro {
52 struct place defplace; 59 struct place defplace;
53 struct place expansionplace; 60 struct place expansionplace;
54 unsigned hash; 61 unsigned hash;
76 { 83 {
77 struct expansionitem *ei; 84 struct expansionitem *ei;
78 85
79 ei = domalloc(sizeof(*ei)); 86 ei = domalloc(sizeof(*ei));
80 ei->itemtype = EI_STRING; 87 ei->itemtype = EI_STRING;
81 ei->string = dostrdup(string); 88 ei->ei_string = dostrdup(string);
82 return ei; 89 return ei;
83 } 90 }
84 91
85 static 92 static
86 struct expansionitem * 93 struct expansionitem *
88 { 95 {
89 struct expansionitem *ei; 96 struct expansionitem *ei;
90 97
91 ei = domalloc(sizeof(*ei)); 98 ei = domalloc(sizeof(*ei));
92 ei->itemtype = EI_STRING; 99 ei->itemtype = EI_STRING;
93 ei->string = dostrndup(string, len); 100 ei->ei_string = dostrndup(string, len);
94 return ei; 101 return ei;
95 } 102 }
96 103
97 static 104 static
98 struct expansionitem * 105 struct expansionitem *
100 { 107 {
101 struct expansionitem *ei; 108 struct expansionitem *ei;
102 109
103 ei = domalloc(sizeof(*ei)); 110 ei = domalloc(sizeof(*ei));
104 ei->itemtype = EI_PARAM; 111 ei->itemtype = EI_PARAM;
105 ei->param = param; 112 ei->ei_param = param;
106 return ei; 113 return ei;
107 } 114 }
108 115
109 static 116 static
110 struct expansionitem * 117 struct expansionitem *
132 void 139 void
133 expansionitem_destroy(struct expansionitem *ei) 140 expansionitem_destroy(struct expansionitem *ei)
134 { 141 {
135 switch (ei->itemtype) { 142 switch (ei->itemtype) {
136 case EI_STRING: 143 case EI_STRING:
137 dostrfree(ei->string); 144 dostrfree(ei->ei_string);
138 break; 145 break;
139 case EI_PARAM: 146 case EI_PARAM:
140 case EI_FILE: 147 case EI_FILE:
141 case EI_LINE: 148 case EI_LINE:
142 break; 149 break;
152 if (ei1->itemtype != ei2->itemtype) { 159 if (ei1->itemtype != ei2->itemtype) {
153 return false; 160 return false;
154 } 161 }
155 switch (ei1->itemtype) { 162 switch (ei1->itemtype) {
156 case EI_STRING: 163 case EI_STRING:
157 if (strcmp(ei1->string, ei2->string) != 0) { 164 if (strcmp(ei1->ei_string, ei2->ei_string) != 0) {
158 return false; 165 return false;
159 } 166 }
160 break; 167 break;
161 case EI_PARAM: 168 case EI_PARAM:
162 if (ei1->param != ei2->param) { 169 if (ei1->ei_param != ei2->ei_param) {
163 return false; 170 return false;
164 } 171 }
165 break; 172 break;
166 case EI_FILE: 173 case EI_FILE:
167 case EI_LINE: 174 case EI_LINE:
820 num = expansionitemarray_num(&es->curmacro->expansion); 827 num = expansionitemarray_num(&es->curmacro->expansion);
821 for (i=0; i<num; i++) { 828 for (i=0; i<num; i++) {
822 ei = expansionitemarray_get(&es->curmacro->expansion, i); 829 ei = expansionitemarray_get(&es->curmacro->expansion, i);
823 switch (ei->itemtype) { 830 switch (ei->itemtype) {
824 case EI_STRING: 831 case EI_STRING:
825 len += strlen(ei->string); 832 len += strlen(ei->ei_string);
826 break; 833 break;
827 case EI_PARAM: 834 case EI_PARAM:
828 arg = stringarray_get(&es->args, ei->param); 835 arg = stringarray_get(&es->args, ei->ei_param);
829 len += strlen(arg); 836 len += strlen(arg);
830 break; 837 break;
831 case EI_FILE: 838 case EI_FILE:
832 len += strlen(place_getname(p)) + 2; 839 len += strlen(place_getname(p)) + 2;
833 break; 840 break;
841 *ret = '\0'; 848 *ret = '\0';
842 for (i=0; i<num; i++) { 849 for (i=0; i<num; i++) {
843 ei = expansionitemarray_get(&es->curmacro->expansion, i); 850 ei = expansionitemarray_get(&es->curmacro->expansion, i);
844 switch (ei->itemtype) { 851 switch (ei->itemtype) {
845 case EI_STRING: 852 case EI_STRING:
846 strcat(ret, ei->string); 853 strcat(ret, ei->ei_string);
847 break; 854 break;
848 case EI_PARAM: 855 case EI_PARAM:
849 arg = stringarray_get(&es->args, ei->param); 856 arg = stringarray_get(&es->args, ei->ei_param);
850 strcat(ret, arg); 857 strcat(ret, arg);
851 break; 858 break;
852 case EI_FILE: 859 case EI_FILE:
853 strcat(ret, "\""); 860 strcat(ret, "\"");
854 strcat(ret, place_getname(p)); 861 strcat(ret, place_getname(p));