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@@ -1,6 +1,15 @@
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import c
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global func main(argc: i64, argv: i64) {
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x = "TEST"
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printf("%s\n", ^&x)
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struct Test {
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text: ^string
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}
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global func main(argc: i64, argv: i64) {
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text = "test"
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x = new Test {
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text = &text
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}
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printf("%s\n", x.text^)
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}
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@@ -220,6 +220,10 @@ public class Generator
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return definition.Fields.Sum(f => QbeTypeSize(f.Type));
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}
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case NubPointerType:
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{
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return 8;
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}
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default:
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{
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throw new NotImplementedException();
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@@ -254,6 +258,8 @@ public class Generator
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_builder.AppendLine($"({string.Join(", ", parameterStrings)}) {{");
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_builder.AppendLine("@start");
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_builder.AppendLine(" # Variable allocation");
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foreach (var parameter in node.Parameters)
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{
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var parameterName = parameter.Name;
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@@ -278,23 +284,35 @@ public class Generator
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break;
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}
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_variables.Add(parameter.Name, new Variable
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var pointerLabel = GenName();
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_builder.AppendLine($" %{pointerLabel} ={SQT(parameter.Type)} alloc8 {QbeTypeSize(parameter.Type)}");
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_builder.AppendLine($" storel %{parameterName}, %{pointerLabel}");
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_variables[parameter.Name] = new Variable
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{
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Identifier = $"%{parameterName}",
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Pointer = $"%{pointerLabel}",
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Type = parameter.Type
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});
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};
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}
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_builder.AppendLine(" # End variable allocation");
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_builder.AppendLine();
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GenerateBlock(node.Body);
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if (node.Body.Statements.Last() is not ReturnNode)
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{
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if (!node.ReturnType.HasValue && node.Name == "main")
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{
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_builder.AppendLine();
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_builder.AppendLine(" # Implicit return for main");
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_builder.AppendLine(" ret 0");
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}
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else if (!node.ReturnType.HasValue)
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{
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_builder.AppendLine();
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_builder.AppendLine(" # Implicit return");
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_builder.AppendLine(" ret");
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}
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}
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@@ -456,9 +474,13 @@ public class Generator
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private void GenerateVariableAssignment(VariableAssignmentNode variableAssignment)
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{
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var result = GenerateExpression(variableAssignment.Value);
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var pointerLabel = GenName();
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_builder.AppendLine($" %{pointerLabel} ={SQT(variableAssignment.Value.Type)} alloc8 {QbeTypeSize(variableAssignment.Value.Type)}");
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_builder.AppendLine($" storel {result}, %{pointerLabel}");
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_variables[variableAssignment.Name] = new Variable
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{
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Identifier = result,
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Pointer = $"%{pointerLabel}",
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Type = variableAssignment.Value.Type
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};
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}
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@@ -1180,7 +1202,10 @@ public class Generator
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private string GenerateIdentifier(IdentifierNode identifier)
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{
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return _variables[identifier.Identifier].Identifier;
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var variable = _variables[identifier.Identifier];
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var outputLabel = GenName();
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_builder.AppendLine($" %{outputLabel} ={SQT(identifier.Type)} load{SQT(identifier.Type)} {variable.Pointer}");
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return $"%{outputLabel}";
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}
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private string GenerateLiteral(LiteralNode literal)
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@@ -1317,23 +1342,8 @@ public class Generator
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}
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case UnaryExpressionOperator.Dereference:
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{
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// Handle dereference operator (assuming operand is a pointer)
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// This would load the value from the address stored in the operand
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if (unaryExpression.Type is NubPrimitiveType primitiveType)
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{
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_builder.AppendLine($" %{outputLabel} ={SQT(primitiveType)} load{SQT(primitiveType)} {operand}");
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return $"%{outputLabel}";
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}
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if (unaryExpression.Type is NubStructType structType)
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{
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// For struct types, we'd need to handle differently
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// This is a simplified version
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_builder.AppendLine($" %{outputLabel} =l copy {operand}");
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return $"%{outputLabel}";
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}
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break;
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_builder.AppendLine($" %{outputLabel} ={SQT(unaryExpression.Type)} load{SQT(unaryExpression.Type)} {operand}");
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return $"%{outputLabel}";
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}
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default:
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{
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@@ -1397,7 +1407,7 @@ public class Generator
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private class Variable
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{
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public required string Identifier { get; init; }
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public required string Pointer { get; init; }
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public required NubType Type { get; init; }
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}
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}
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@@ -359,11 +359,6 @@ public class Parser
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return new StructInitializerNode(type, initializers);
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}
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case Symbol.Caret:
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{
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var expression = ParsePrimaryExpression();
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return new UnaryExpressionNode(UnaryExpressionOperator.Dereference, expression);
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}
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case Symbol.Ampersand:
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{
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var expression = ParsePrimaryExpression();
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@@ -413,6 +408,10 @@ public class Parser
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{
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var field = ExpectIdentifier();
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result = new StructFieldAccessorNode(result, field.Value);
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if (TryExpectSymbol(Symbol.Caret))
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{
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result = new UnaryExpressionNode(UnaryExpressionOperator.Dereference, result);
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}
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} while (TryExpectSymbol(Symbol.Period));
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return result;
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@@ -435,6 +434,11 @@ public class Parser
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}
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}
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if (TryExpectSymbol(Symbol.Caret))
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{
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return new UnaryExpressionNode(UnaryExpressionOperator.Dereference, new IdentifierNode(identifier.Value));
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}
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return new IdentifierNode(identifier.Value);
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}
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@@ -452,8 +456,10 @@ public class Parser
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private NubType ParseType()
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{
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var pointer = TryExpectSymbol(Symbol.Caret);
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var name = ExpectIdentifier().Value;
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return NubType.Parse(name);
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var type = NubType.Parse(name);
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return pointer ? new NubPointerType(type) : type;
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}
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private Token ExpectToken()
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