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properly handle classes with no interface table in isAssignableFrom()

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This commit is contained in:
Joel Dice 2007-08-21 22:03:03 -06:00
parent 57d57ff7bf
commit a1caf06955
1 changed files with 5 additions and 3 deletions
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8
src/machine.cpp
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@ -1694,9 +1694,11 @@ isAssignableFrom(Thread* t, object a, object b)
if (classFlags(t, a) & ACC_INTERFACE) {
for (; b; b = classSuper(t, b)) {
object itable = classInterfaceTable(t, b);
for (unsigned i = 0; i < arrayLength(t, itable); i += 2) {
if (arrayBody(t, itable, i) == a) {
return true;
if (itable) {
for (unsigned i = 0; i < arrayLength(t, itable); i += 2) {
if (arrayBody(t, itable, i) == a) {
return true;
}
}
}
}