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Postincrement/decrement property in ASC2

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Jindra Petřík
2021-02-01 12:51:00 +01:00
parent b6ddb79009
commit 709e2c1205
1 changed files with 37 additions and 4 deletions
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41
libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/instructions/localregs/GetLocalTypeIns.java
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@@ -30,6 +30,8 @@ import com.jpexs.decompiler.flash.abc.avm2.model.FullMultinameAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.GetPropertyAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.IncrementAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.LocalRegAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.PostDecrementAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.PostIncrementAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.ScriptAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.SetLocalAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.SetPropertyAVM2Item;
@@ -93,11 +95,42 @@ public abstract class GetLocalTypeIns extends InstructionDefinition {
//computedValue = new NotCompileTimeItem(ins, localData.lineStartInstruction, computedValue);
}
//chained assignments FIXME!!!
//chained assignments and/or ASC post/pre increment
if (!output.isEmpty()) {
if ((output.get(output.size() - 1) instanceof SetTypeAVM2Item)) {
GraphTargetItem setItem = output.get(output.size() - 1);
if (setItem.value.getNotCoerced() instanceof SetLocalAVM2Item) {
if ((setItem instanceof SetPropertyAVM2Item)
&& ((setItem.value.getNotCoerced() instanceof DecrementAVM2Item)
|| (setItem.value.getNotCoerced() instanceof IncrementAVM2Item))) {
boolean isIncrement = (setItem.value.getNotCoerced() instanceof IncrementAVM2Item);
GraphTargetItem val = setItem.value.getNotCoerced();
if (val.value instanceof SetLocalAVM2Item) {
SetLocalAVM2Item setLocal = (SetLocalAVM2Item) val.value;
if (setLocal.regIndex == regId) {
if (setLocal.value.getNotCoerced() instanceof GetPropertyAVM2Item) {
SetPropertyAVM2Item setProp = (SetPropertyAVM2Item) setItem;
GetPropertyAVM2Item getProp = (GetPropertyAVM2Item) setLocal.value.getNotCoerced();
if (getProp.object.getThroughDuplicate() == setProp.object) {
if (((FullMultinameAVM2Item) setProp.propertyName).compareSame((FullMultinameAVM2Item) getProp.propertyName)) {
if (getProp.object instanceof DuplicateItem) {
getProp.object = getProp.object.value;
}
GraphTargetItem result;
if (isIncrement) {
result = new PostIncrementAVM2Item(setProp.getSrc(), localData.lineStartInstruction, getProp);
} else {
result = new PostDecrementAVM2Item(setProp.getSrc(), localData.lineStartInstruction, getProp);
}
output.remove(output.size() - 1);
stack.add(result);
return;
}
}
}
}
}
}
else if (setItem.value.getNotCoerced() instanceof SetLocalAVM2Item) {
SetLocalAVM2Item setLocal = (SetLocalAVM2Item) setItem.value.getNotCoerced();
if (setLocal.regIndex == regId) {
if ((setItem.value instanceof CoerceAVM2Item) || (setItem.value instanceof ConvertAVM2Item)) {
@@ -120,9 +153,9 @@ public abstract class GetLocalTypeIns extends InstructionDefinition {
getProp.object = getProp.object.value;
}
if (isIncrement) {
setItem = new PreIncrementAVM2Item(null, localData.lineStartInstruction, getProp);
setItem = new PreIncrementAVM2Item(setProp.getSrc(), localData.lineStartInstruction, getProp);
} else {
setItem = new PreDecrementAVM2Item(null, localData.lineStartInstruction, getProp);
setItem = new PreDecrementAVM2Item(setProp.getSrc(), localData.lineStartInstruction, getProp);
}
}
}