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Fixed #2190 AS1/2 - for..in inside switch before break

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This commit is contained in:
Jindra Petřík
2024-08-05 11:17:25 +02:00
parent ece2d537d5
commit f51fee7064
9 changed files with 170 additions and 86 deletions
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libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/ActionGraph.java
+85 -52
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@@ -34,6 +34,7 @@ import com.jpexs.decompiler.flash.action.model.TemporaryRegister;
import com.jpexs.decompiler.flash.action.model.TemporaryRegisterMark;
import com.jpexs.decompiler.flash.action.model.clauses.ForInActionItem;
import com.jpexs.decompiler.flash.action.model.clauses.TellTargetActionItem;
import com.jpexs.decompiler.flash.action.model.operations.EqActionItem;
import com.jpexs.decompiler.flash.action.model.operations.NeqActionItem;
import com.jpexs.decompiler.flash.action.model.operations.StrictEqActionItem;
import com.jpexs.decompiler.flash.action.model.operations.StrictNeqActionItem;
@@ -70,6 +71,7 @@ import com.jpexs.decompiler.graph.model.PopItem;
import com.jpexs.decompiler.graph.model.PushItem;
import com.jpexs.decompiler.graph.model.ScriptEndItem;
import com.jpexs.decompiler.graph.model.SwitchItem;
import com.jpexs.decompiler.graph.model.TrueItem;
import com.jpexs.decompiler.graph.model.WhileItem;
import com.jpexs.helpers.Helper;
import com.jpexs.helpers.Reference;
@@ -362,59 +364,28 @@ public class ActionGraph extends Graph {
checkedLoop = null;
}
}
EnumerateActionItem enumerateItem = null;
BinaryOpItem comparisonOp = null;
//for..in inside switch before break
if ((checkedCondition instanceof TrueItem) && checkedBody != null) {
if (!checkedBody.isEmpty() && (checkedBody.get(0) instanceof IfItem)) {
IfItem ifi = (IfItem) checkedBody.get(0);
if (ifi.onFalse.isEmpty()) {
if (!ifi.onTrue.isEmpty() && (ifi.onTrue.get(ifi.onTrue.size() - 1) instanceof BreakItem)) {
checkedCondition = ifi.expression;
if (checkedCondition instanceof NeqActionItem) {
NeqActionItem ne = (NeqActionItem) checkedCondition;
if (ne.rightSide instanceof DirectValueActionItem) {
DirectValueActionItem dv = (DirectValueActionItem) ne.rightSide;
if (dv.value == Null.INSTANCE) {
GraphTargetItem en = list.get(t - 1);
if (en instanceof EnumerateActionItem) {
EnumerateActionItem eti = (EnumerateActionItem) en;
if (checkedCondition instanceof NeqActionItem) {
NeqActionItem neq = (NeqActionItem) checkedCondition;
if (neq.leftSide instanceof StoreRegisterActionItem) {
if (checkedBody != null && (!checkedBody.isEmpty()) && (checkedBody.get(0) instanceof SetTypeActionItem)) {
SetTypeActionItem sti = (SetTypeActionItem) checkedBody.get(0);
if ((sti.getValue() instanceof DirectValueActionItem) && (((DirectValueActionItem) sti.getValue()).value instanceof RegisterNumber)) {
if ((neq.rightSide instanceof DirectValueActionItem) && (((DirectValueActionItem) neq.rightSide).value instanceof Null)) {
if (neq.leftSide.value instanceof EnumeratedValueActionItem) {
if (((StoreRegisterActionItem) neq.leftSide).register.number == ((RegisterNumber) (((DirectValueActionItem) sti.getValue()).value)).number) {
list.remove(t);
checkedBody.remove(0);
if (checkedLoop == null) {
checkedLoop = new Loop(localData.loops.size(), null, null);
checkedBody.add(new BreakItem(null, null, checkedLoop.id));
}
sti.setValue(new DirectValueActionItem(Null.INSTANCE));
list.add(t, new ForInActionItem(null, null, checkedLoop, (GraphTargetItem) sti, eti.object, checkedBody));
//sti.getObject()
list.remove(t - 1);
t--;
continue;
}
}
}
}
}
if (checkedBody != null) {
list.remove(t);
if (checkedLoop == null) {
checkedLoop = new Loop(localData.loops.size(), null, null);
checkedBody.add(new BreakItem(null, null, checkedLoop.id));
}
list.remove(t - 1);
t--;
if (eti.object instanceof SetTypeActionItem) {
list.add(t++, eti.object);
eti.object = ((SetTypeActionItem) eti.object).getObject();
}
list.add(t, new ForInActionItem(null, null, checkedLoop, (GraphTargetItem) neq.leftSide, eti.object, checkedBody));
if (t + 1 < list.size()) {
if (list.get(t + 1) instanceof EnumeratedValueActionItem) {
list.remove(t + 1);
if (checkedCondition instanceof EqActionItem) {
EqActionItem eq = (EqActionItem) checkedCondition;
if (eq.rightSide instanceof DirectValueActionItem) {
DirectValueActionItem dv = (DirectValueActionItem) eq.rightSide;
if (dv.value == Null.INSTANCE) {
GraphTargetItem en = list.get(t - 1);
if (en instanceof EnumerateActionItem) {
enumerateItem = (EnumerateActionItem) en;
if (eq.leftSide instanceof StoreRegisterActionItem) {
comparisonOp = eq;
checkedBody.remove(0);
}
}
}
@@ -425,6 +396,68 @@ public class ActionGraph extends Graph {
}
}
if (checkedCondition instanceof NeqActionItem) {
NeqActionItem ne = (NeqActionItem) checkedCondition;
if (ne.rightSide instanceof DirectValueActionItem) {
DirectValueActionItem dv = (DirectValueActionItem) ne.rightSide;
if (dv.value == Null.INSTANCE) {
GraphTargetItem en = list.get(t - 1);
if (en instanceof EnumerateActionItem) {
enumerateItem = (EnumerateActionItem) en;
if (ne.leftSide instanceof StoreRegisterActionItem) {
comparisonOp = ne;
}
}
}
}
}
if (comparisonOp != null) {
if (checkedBody != null && (!checkedBody.isEmpty()) && (checkedBody.get(0) instanceof SetTypeActionItem)) {
SetTypeActionItem sti = (SetTypeActionItem) checkedBody.get(0);
if ((sti.getValue() instanceof DirectValueActionItem) && (((DirectValueActionItem) sti.getValue()).value instanceof RegisterNumber)) {
if ((comparisonOp.rightSide instanceof DirectValueActionItem) && (((DirectValueActionItem) comparisonOp.rightSide).value instanceof Null)) {
if (comparisonOp.leftSide.value instanceof EnumeratedValueActionItem) {
if (((StoreRegisterActionItem) comparisonOp.leftSide).register.number == ((RegisterNumber) (((DirectValueActionItem) sti.getValue()).value)).number) {
list.remove(t);
checkedBody.remove(0);
if (checkedLoop == null) {
checkedLoop = new Loop(localData.loops.size(), null, null);
checkedBody.add(new BreakItem(null, null, checkedLoop.id));
}
sti.setValue(new DirectValueActionItem(Null.INSTANCE));
list.add(t, new ForInActionItem(null, null, checkedLoop, (GraphTargetItem) sti, enumerateItem.object, checkedBody));
//sti.getObject()
list.remove(t - 1);
t--;
continue;
}
}
}
}
}
if (checkedBody != null) {
list.remove(t);
if (checkedLoop == null) {
checkedLoop = new Loop(localData.loops.size(), null, null);
checkedBody.add(new BreakItem(null, null, checkedLoop.id));
}
list.remove(t - 1);
t--;
if (enumerateItem.object instanceof SetTypeActionItem) {
list.add(t++, enumerateItem.object);
enumerateItem.object = ((SetTypeActionItem) enumerateItem.object).getObject();
}
list.add(t, new ForInActionItem(null, null, checkedLoop, (GraphTargetItem) comparisonOp.leftSide, enumerateItem.object, checkedBody));
if (t + 1 < list.size()) {
if (list.get(t + 1) instanceof EnumeratedValueActionItem) {
list.remove(t + 1);
}
}
}
}
}
//Handle for loops at the end:
super.finalProcess(list, level, localData, path);