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Include return void statement when required; Temporarily use gotos

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This commit is contained in:
Yoshi Askharoun
2025-07-25 16:32:34 -05:00
parent 0e71917f34
commit 55829c7774
2 changed files with 46 additions and 57 deletions
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libs/UIX.DecompXml/Decompiler.Script.cs
+28 -29
View File
@@ -118,27 +118,14 @@ partial class Decompiler
blockStack.Peek().Statements.Add(ExpressionStatement(propertySetExpression));
break;
case OpCode.PropertyDictionaryAdd:
// TODO
var targetDictProperty = _context.GetImportedProperty(instruction.Operands.ElementAt(0));
case OpCode.VerifyTypeCast:
var objToCast = stack.Pop();
var typeToCastTo = _context.GetImportedType(instruction.Operands.First());
var keyReference = instruction.Operands.ElementAt(1);
var key = _context.GetConstant(keyReference).Value.ToString();
var dictValue = stack.Pop();
var targetInstance = (XElement)stack.Peek();
PropertyDictionaryAddOnXElement(targetInstance, targetDictProperty, IrisObject.Create(dictValue, null, _context), key);
break;
case OpCode.PropertyListAdd:
// TODO
var targetListProperty = _context.GetImportedProperty(instruction.Operands.First());
var valueToAdd = stack.Pop();
var targetInstance2 = (XElement)ToXmlFriendlyObject(stack.Peek());
PropertyListAddOnXElement(targetInstance2, targetListProperty, IrisObject.Create(valueToAdd, null, _context));
stack.Push(CastExpression(
IrisExpression.ToSyntax(typeToCastTo, _context),
IrisExpression.ToSyntax(objToCast, _context)
));
break;
case OpCode.JumpIfFalse:
@@ -149,7 +136,6 @@ partial class Decompiler
// TODO: What about for loops?
if (instruction.Offset > jumpToOffset)
{
throw new NotImplementedException();
}
var isPeek = opCode is OpCode.JumpIfFalsePeek or OpCode.JumpIfTruePeek or OpCode.JumpIfNullPeek;
@@ -169,19 +155,21 @@ partial class Decompiler
_ => throw new NotImplementedException()
};
var ifBlock = new CodeBlockInfo(instruction.Offset, jumpToOffset, SyntaxKind.IfStatement, jumpCondition);
blockStack.Push(ifBlock);
//var ifBlock = new CodeBlockInfo(instruction.Offset, jumpToOffset, SyntaxKind.IfStatement, jumpCondition);
//blockStack.Push(ifBlock);
var ifBlock = IfStatement(jumpCondition,
GotoStatement(SyntaxKind.GotoStatement, IdentifierName($"UIB_{jumpToOffset:X4}")))
.WithLeadingTrivia(Comment($"/* UIB_{instruction.Offset:X4} */"));
blockStack.Peek().Statements.Add(ifBlock);
break;
case OpCode.Jump:
var jumpOffset = (uint)instruction.Operands.First().Value;
var statementsJumpedTo = DecompileMethod(jumpOffset, export);
// TODO
blockStack.Peek().Statements.Add(
Block(List([..statementsJumpedTo]))
.WithTrailingTrivia(EndOfLine(Environment.NewLine), Comment($"// TODO: {instruction}"))
);
blockStack.Peek().Statements.Add(GotoStatement(SyntaxKind.GotoStatement, IdentifierName($"UIB_{jumpOffset:X4}")));
break;
case OpCode.ReturnValue:
@@ -189,7 +177,18 @@ partial class Decompiler
blockStack.Peek().Statements.Add(returnStatement);
break;
case not OpCode.ReturnVoid:
case OpCode.ReturnVoid:
// Include return statement when we're not in the main block (which would return anyway)
// or when we're not at the end of the function
if (blockStack.Count > 1 || i + 1 < methodBody.Length)
blockStack.Peek().Statements.Add(ReturnStatement());
break;
case OpCode.ClearSymbol:
// Ignore these instructions
break;
default:
if (!TryDecompileExpression(instruction, stack, blockStack))
{
var unsupportedComment = Comment($"// Unsupported instruction: {instruction}");
test/STYLES_decomp.uix
+14 -24
View File
@@ -826,37 +826,27 @@
<Script>string GetDefaultFrameBackground()
{
source = null;
/* UIB_001B */
if (zuneUI:ZuneShell.DefaultInstance.CurrentPage is not zuneUI:QuickplayPage)
{
goto UIB_0058;
/* UIB_0029 */
if (zuneUI:ZuneShell.DefaultInstance.CurrentPage is zuneUI:StartupPage)
{
}
goto UIB_0038;
/* UIB_0038 */
if (zuneUI:ZuneShell.DefaultInstance.CurrentPage is zuneUI:StartupPage &amp;&amp; string.IsNullOrEmpty(zuneUI:Shell.SessionStartupPath))
{
}
}
goto UIB_0054;
/* UIB_0058 */
if (zuneUI:ZuneShell.DefaultInstance.CurrentPage is not zuneUI:QuickplayPage &amp;&amp; zuneUI:ZuneShell.DefaultInstance.CurrentPage is not zuneUI:StartupPage || !(string.IsNullOrEmpty(zuneUI:Shell.SessionStartupPath)) || configuration:ClientConfiguration.Shell.StartupPage != zuneUI:Shell.MainFrame.Quickplay.DefaultUIPath)
{
goto UIB_0083;
/* UIB_0066 */
if (zuneUI:ZuneShell.DefaultInstance.CurrentPage is zuneUI:StartupPage)
{
}
}
goto UIB_007F;
/* UIB_0083 */
if (zuneUI:ZuneShell.DefaultInstance.CurrentPage is zuneUI:QuickplayPage || zuneUI:ZuneShell.DefaultInstance.CurrentPage is zuneUI:StartupPage &amp;&amp; string.IsNullOrEmpty(zuneUI:Shell.SessionStartupPath) &amp;&amp; configuration:ClientConfiguration.Shell.StartupPage == zuneUI:Shell.MainFrame.Quickplay.DefaultUIPath || zuneUI:ZuneShell.DefaultInstance.CurrentPage is zuneUI:StartupPage &amp;&amp; zuneUI:Shell.SessionStartupPath == zuneUI:Shell.MainFrame.Quickplay.DefaultUIPath)
{
goto UIB_0097;
source = QuickplayFrameBackground.Value;
{
// Unsupported instruction: CSYM 63
;
return source;
} // TODO: JMP 170
}// Unsupported instruction: VTC 960
;
source = FrameBackgrounds.get_Item(DefaultBackgroundIndex).Value;
// Unsupported instruction: CSYM 63
;
goto UIB_00AA;
source = (zuneUI:NamedStringOption)FrameBackgrounds.get_Item(DefaultBackgroundIndex).Value;
return source;
}</Script>
</Scripts>