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Fixed: #2338 AS2 Reading large classes with incorrect if jumps on the beginning

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Fixed: #2338 AS1/2/3 Obfuscated code - jump to jump handling
This commit is contained in:
Jindra Petřík
2025-07-12 14:49:55 +02:00
parent fedca32372
commit 381b97c026
14 changed files with 655 additions and 185 deletions
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50
libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/ActionScript2AssemblerTest.java
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@@ -75,7 +75,7 @@ public class ActionScript2AssemblerTest extends ActionScript2TestBase {
HighlightedTextWriter writer = new HighlightedTextWriter(new CodeFormatting(), false);
try {
Action.actionsToSource(new HashMap<>(),doa, doa.getActions(), "", writer, swf.getCharset());
Action.actionsToSource(new HashMap<>(), doa, doa.getActions(), "", writer, swf.getCharset());
} catch (InterruptedException ex) {
fail();
}
@@ -126,7 +126,7 @@ public class ActionScript2AssemblerTest extends ActionScript2TestBase {
DoActionTag doa = getFirstActionTag();
doa.setActionBytes(Action.actionsToBytes(actions, true, swf.version));
HighlightedTextWriter writer = new HighlightedTextWriter(new CodeFormatting(), false);
Action.actionsToSource(new HashMap<>(),doa, doa.getActions(), "", writer, swf.getCharset());
Action.actionsToSource(new HashMap<>(), doa, doa.getActions(), "", writer, swf.getCharset());
writer.finishHilights();
String actualResult = writer.toString();
writer = new HighlightedTextWriter(new CodeFormatting(), false);
@@ -175,6 +175,52 @@ public class ActionScript2AssemblerTest extends ActionScript2TestBase {
+ "}");
}
@Test
public void testJumpAfterFunctionFix() {
String res = decompilePcode("ConstantPool \"F\", \"A\", \"f\", \"B\", \"C\"\n"
+ "DefineFunction \"f\", 0 {\n"
+ "Push \"F\"\n"
+ "Trace\n"
+ "Push 1, 1\n"
+ "Equals2\n"
+ "If loc005b\n"
+ "Push \"G\"\n"
+ "Trace\n"
+ "}\n"
+ "Push \"A\"\n"
+ "Trace\n"
+ "Push 0\n"
+ "Push \"f\"\n"
+ "CallFunction\n"
+ "Pop\n"
+ "Push \"B\"\n"
+ "Trace\n"
+ "Push 1\n"
+ "loc005b:Push 2\n"
+ "Equals2\n"
+ "If loc006e\n"
+ "Push \"C\"\n"
+ "Trace\n"
+ "loc006e:Stop");
res = cleanPCode(res);
assertEquals(res, "function f()\n"
+ "{\n"
+ "trace(\"F\");\n"
+ "if(1 != 1)\n"
+ "{\n"
+ "trace(\"G\");\n"
+ "}\n"
+ "}\n"
+ "trace(\"A\");\n"
+ "f();\n"
+ "trace(\"B\");\n"
+ "if(1 != 2)\n"
+ "{\n"
+ "trace(\"C\");\n"
+ "}\n"
+ "stop();");
}
@Test
public void testDefineFuncRegCleaner() {
String res = decompilePcode("ConstantPool \"Math\" \"randi\" \"random\" \"b\" \"a\" \"floor\" \"randf\" \"randa\" \"arguments\" \"rande\" \"sign\" \"abs\"\n"