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allow java.lang.Object with no virtual methods, which may occur due to code shrinking

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This commit is contained in:
Joel Dice 2008-01-21 16:42:12 -07:00
parent c9714c73f2
commit 125fe3440e
1 changed files with 17 additions and 10 deletions
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7
src/machine.cpp
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@ -1347,6 +1347,7 @@ parseMethodTable(Thread* t, Stream& s, object class_, object pool)
if (declaredVirtualCount == 0 if (declaredVirtualCount == 0
and (classFlags(t, class_) & ACC_INTERFACE) == 0) and (classFlags(t, class_) & ACC_INTERFACE) == 0)
{ {
if (classSuper(t, class_)) {
// inherit virtual table from superclass // inherit virtual table from superclass
set(t, class_, ClassVirtualTable, superVirtualTable); set(t, class_, ClassVirtualTable, superVirtualTable);
@ -1358,6 +1359,12 @@ parseMethodTable(Thread* t, Stream& s, object class_, object pool)
set(t, class_, ClassInterfaceTable, set(t, class_, ClassInterfaceTable,
classInterfaceTable(t, classSuper(t, class_))); classInterfaceTable(t, classSuper(t, class_)));
} }
} else {
// apparently Object does not have any virtual methods. We give
// it a vtable anyway so code doesn't break elsewhere.
object vtable = makeArray(t, 0, false);
set(t, class_, ClassVirtualTable, vtable);
}
} else if (virtualCount) { } else if (virtualCount) {
// generate class vtable // generate class vtable