test/addProtocol.m

   1 /*
   2 TEST_RUN_OUTPUT
   3 objc\[\d+\]: protocol_addProtocol: added protocol 'EmptyProto' is still under construction!
   4 objc\[\d+\]: objc_registerProtocol: protocol 'Proto1' was already registered!
   5 objc\[\d+\]: protocol_addProtocol: modified protocol 'Proto1' is not under construction!
   6 objc\[\d+\]: protocol_addMethodDescription: protocol 'Proto1' is not under construction!
   7 objc\[\d+\]: objc_registerProtocol: protocol 'SuperProto' was already registered!
   8 objc\[\d+\]: protocol_addProtocol: modified protocol 'SuperProto' is not under construction!
   9 objc\[\d+\]: protocol_addMethodDescription: protocol 'SuperProto' is not under construction!
  10 OK: addProtocol.m
  11 END
  12 */
  13
  14 #include "test.h"
  15
  16 #include <objc/runtime.h>
  17
  18 @protocol SuperProto @end
  19 @protocol SuperProto2 @end
  20 @protocol UnrelatedProto @end
  21
  22 int main()
  23 {
  24     Protocol *proto, *proto2;
  25     Protocol * __unsafe_unretained *protolist;
  26     struct objc_method_description *desclist;
  27     objc_property_t *proplist;
  28     unsigned int count;
  29
  30     // make sure binary contains hard copies of these protocols
  31     proto = @protocol(SuperProto);
  32     proto = @protocol(SuperProto2);
  33
  34     // Adding a protocol
  35
  36     char *name = strdup("Proto1");
  37     proto = objc_allocateProtocol(name);
  38     testassert(proto);
  39     testassert(!objc_getProtocol(name));
  40
  41     protocol_addProtocol(proto, @protocol(SuperProto));
  42     protocol_addProtocol(proto, @protocol(SuperProto2));
  43     // no inheritance cycles
  44     proto2 = objc_allocateProtocol("EmptyProto");
  45     protocol_addProtocol(proto, proto2);  // fails
  46     objc_registerProtocol(proto2);
  47     protocol_addProtocol(proto, proto2);  // succeeds
  48
  49     char *types = strdup("@:");
  50     protocol_addMethodDescription(proto, @selector(ReqInst0), types, YES, YES);
  51     protocol_addMethodDescription(proto, @selector(ReqInst1), types, YES, YES);
  52     protocol_addMethodDescription(proto, @selector(ReqInst2), types, YES, YES);
  53     protocol_addMethodDescription(proto, @selector(ReqInst3), types, YES, YES);
  54
  55     protocol_addMethodDescription(proto, @selector(ReqClas0), types, YES, NO);
  56     protocol_addMethodDescription(proto, @selector(ReqClas1), types, YES, NO);
  57     protocol_addMethodDescription(proto, @selector(ReqClas2), types, YES, NO);
  58     protocol_addMethodDescription(proto, @selector(ReqClas3), types, YES, NO);
  59
  60     protocol_addMethodDescription(proto, @selector(OptInst0), types, NO,  YES);
  61     protocol_addMethodDescription(proto, @selector(OptInst1), types, NO,  YES);
  62     protocol_addMethodDescription(proto, @selector(OptInst2), types, NO,  YES);
  63     protocol_addMethodDescription(proto, @selector(OptInst3), types, NO,  YES);
  64
  65     protocol_addMethodDescription(proto, @selector(OptClas0), types, NO,  NO);
  66     protocol_addMethodDescription(proto, @selector(OptClas1), types, NO,  NO);
  67     protocol_addMethodDescription(proto, @selector(OptClas2), types, NO,  NO);
  68     protocol_addMethodDescription(proto, @selector(OptClas3), types, NO,  NO);
  69
  70     char *name0 = strdup("ReqInst0");
  71     char *name1 = strdup("ReqInst1");
  72     char *name2 = strdup("ReqInst2");
  73     char *name3 = strdup("ReqInst3");
  74     char *attrname = strdup("T");
  75     char *attrvalue = strdup("i");
  76     objc_property_attribute_t attrs[] = {{attrname, attrvalue}};
  77     int attrcount = sizeof(attrs) / sizeof(attrs[0]);
  78     protocol_addProperty(proto, name0, attrs, attrcount, YES, YES);
  79     protocol_addProperty(proto, name1, attrs, attrcount, YES, YES);
  80     protocol_addProperty(proto, name2, attrs, attrcount, YES, YES);
  81     protocol_addProperty(proto, name3, attrs, attrcount, YES, YES);
  82
  83     objc_registerProtocol(proto);
  84     testassert(0 == strcmp(protocol_getName(proto), "Proto1"));
  85
  86     // Use of added protocols
  87
  88     testassert(proto == objc_getProtocol("Proto1"));
  89     strcpy(name, "XXXXXX");  // name is copied
  90     testassert(0 == strcmp(protocol_getName(proto), "Proto1"));
  91
  92     protolist = protocol_copyProtocolList(proto, &count);
  93     testassert(protolist);
  94     testassert(count == 3);
  95     // note this order is not required
  96     testassert(protolist[0] == @protocol(SuperProto)  &&
  97                protolist[1] == @protocol(SuperProto2)  &&
  98                protolist[2] == proto2);
  99     free(protolist);
 100
 101     testassert(protocol_conformsToProtocol(proto, proto2));
 102     testassert(protocol_conformsToProtocol(proto, @protocol(SuperProto)));
 103     testassert(!protocol_conformsToProtocol(proto, @protocol(UnrelatedProto)));
 104
 105     strcpy(types, "XX");  // types is copied
 106     desclist = protocol_copyMethodDescriptionList(proto, YES, YES, &count);
 107     testassert(desclist  &&  count == 4);
 108     testassert(desclist[0].name == @selector(ReqInst0));
 109     testassert(0 == strcmp(desclist[0].types, "@:"));
 110     free(desclist);
 111     desclist = protocol_copyMethodDescriptionList(proto, YES, NO,  &count);
 112     testassert(desclist  &&  count == 4);
 113     testassert(desclist[1].name == @selector(ReqClas1));
 114     testassert(0 == strcmp(desclist[1].types, "@:"));
 115     free(desclist);
 116     desclist = protocol_copyMethodDescriptionList(proto, NO,  YES, &count);
 117     testassert(desclist  &&  count == 4);
 118     testassert(desclist[2].name == @selector(OptInst2));
 119     testassert(0 == strcmp(desclist[2].types, "@:"));
 120     free(desclist);
 121     desclist = protocol_copyMethodDescriptionList(proto, NO,  NO,  &count);
 122     testassert(desclist  &&  count == 4);
 123     testassert(desclist[3].name == @selector(OptClas3));
 124     testassert(0 == strcmp(desclist[3].types, "@:"));
 125     free(desclist);
 126
 127     strcpy(name0, "XXXXXXXX");  // name is copied
 128     strcpy(name1, "XXXXXXXX");  // name is copied
 129     strcpy(name2, "XXXXXXXX");  // name is copied
 130     strcpy(name3, "XXXXXXXX");  // name is copied
 131     strcpy(attrname, "X");             // description is copied
 132     strcpy(attrvalue, "X");            // description is copied
 133     memset(attrs, 'X', sizeof(attrs)); // description is copied
 134     proplist = protocol_copyPropertyList(proto, &count);
 135     testassert(proplist);
 136     testassert(count == 4);
 137     // note this order is not required
 138     testassert(0 == strcmp(property_getName(proplist[0]), "ReqInst0"));
 139     testassert(0 == strcmp(property_getName(proplist[1]), "ReqInst1"));
 140     testassert(0 == strcmp(property_getName(proplist[2]), "ReqInst2"));
 141     testassert(0 == strcmp(property_getName(proplist[3]), "ReqInst3"));
 142     testassert(0 == strcmp(property_getAttributes(proplist[0]), "Ti"));
 143     testassert(0 == strcmp(property_getAttributes(proplist[1]), "Ti"));
 144     testassert(0 == strcmp(property_getAttributes(proplist[2]), "Ti"));
 145     testassert(0 == strcmp(property_getAttributes(proplist[3]), "Ti"));
 146     free(proplist);
 147
 148
 149     testassert(proto2 == objc_getProtocol("EmptyProto"));
 150     testassert(0 == strcmp(protocol_getName(proto2), "EmptyProto"));
 151
 152     protolist = protocol_copyProtocolList(proto2, &count);
 153     testassert(!protolist);
 154     testassert(count == 0);
 155
 156     testassert(!protocol_conformsToProtocol(proto2, proto));
 157     testassert(!protocol_conformsToProtocol(proto2,@protocol(SuperProto)));
 158     testassert(!protocol_conformsToProtocol(proto2,@protocol(UnrelatedProto)));
 159
 160     desclist = protocol_copyMethodDescriptionList(proto2, YES, YES, &count);
 161     testassert(!desclist  &&  count == 0);
 162     desclist = protocol_copyMethodDescriptionList(proto2, YES, NO,  &count);
 163     testassert(!desclist  &&  count == 0);
 164     desclist = protocol_copyMethodDescriptionList(proto2, NO,  YES, &count);
 165     testassert(!desclist  &&  count == 0);
 166     desclist = protocol_copyMethodDescriptionList(proto2, NO,  NO,  &count);
 167     testassert(!desclist  &&  count == 0);
 168
 169     // Immutability of existing protocols
 170
 171     objc_registerProtocol(proto);
 172     protocol_addProtocol(proto, @protocol(SuperProto2));
 173     protocol_addMethodDescription(proto, @selector(foo), "", YES, YES);
 174
 175     objc_registerProtocol(@protocol(SuperProto));
 176     protocol_addProtocol(@protocol(SuperProto), @protocol(SuperProto2));
 177     protocol_addMethodDescription(@protocol(SuperProto), @selector(foo), "", YES, YES);
 178
 179     // No duplicates
 180
 181     proto = objc_allocateProtocol("SuperProto");
 182     testassert(!proto);
 183     proto = objc_allocateProtocol("Proto1");
 184     testassert(!proto);
 185
 186     // NULL protocols ignored
 187
 188     protocol_addProtocol((Protocol *)objc_unretainedObject((void*)1), NULL);
 189     protocol_addProtocol(NULL, (Protocol *)objc_unretainedObject((void*)1));
 190     protocol_addProtocol(NULL, NULL);
 191     protocol_addMethodDescription(NULL, @selector(foo), "", YES, YES);
 192
 193     succeed(__FILE__);
 194 }