public void Visit(AssignmentNode n)
{
var children = n.GetChildren();
var subCalls = children.SkipLast().ToList();
var table = (FunctionSymbolTableEntry)n.SymTable;
_writer.WriteComment($"Assignment");
var rhsNode = children.Last();
rhsNode.Accept(this);
var rhsVarName = rhsNode.TemporaryVariableName;
var rhsOffset = table.MemoryLayout.GetOffset(rhsVarName);
WriteCallchainCode(subCalls, FSPReg); // r12 has absolute address of variable to write to.
var finalValSize = Utils.GetTypeFullSize(_globalSymbolTable, subCalls.Last().ExprType);
var srcReg = Registers.R12;
var dstReg = PopRegister();
var sizeReg = PopRegister();
_writer.WriteInstruction(Instructions.Addi, sizeReg, sizeReg, $"{finalValSize}");
_writer.WriteInstruction(Instructions.Add, dstReg, dstReg, FSPReg);
_writer.WriteInstruction(Instructions.Addi, dstReg, dstReg, $"{rhsOffset}");
// src dst inverted, because bugs
WriteMultiByteCopy(dstReg, srcReg, sizeReg);
PushRegister(sizeReg);
PushRegister(dstReg);
}
public void Visit(AssignmentNode n)
{
PrintDOTIDLabel(n);
PrintDOTParentChild(n);
foreach (var child in n.GetChildren())
{
child.Accept(this);
}
}
public void Visit(AssignmentNode n)
{
var children = n.GetChildren();
foreach (var child in children)
{
child.SymTable = n.SymTable;
child.Accept(this);
}
}
public void Visit(AssignmentNode n)
{
var table = (FunctionSymbolTableEntry)n.SymTable;
n._CallchainAddressVarName = table.MemoryLayout.AddTemporaryVariable();
var children = n.GetChildren();
foreach (var child in children)
{
child.Accept(this);
}
}
public void Visit(AssignmentNode n)
{
var children = n.GetChildren();
var rhs = children.Last();
rhs.SymTable = n.SymTable;
rhs.SecondarySymTable = n.SymTable;
rhs.Accept(this);
var rhsType = rhs.ExprType;
var first = children.First();
first.SymTable = n.SymTable;
first.SecondarySymTable = n.SymTable;
first.Accept(this);
var currentScopeSpec = first.ScopeSpec;
var line = ((IdentifierNode)first.LeftmostChildNode).Token.StartLine;
for (int i = 1; i < children.Count - 1; ++i)
{
if (string.IsNullOrEmpty(currentScopeSpec))
{
_errorStream.WriteLine($"Use of variable with no scopespec.");
Console.WriteLine($"Error: Use of variable with no scopespec.");
break;
}
var classTable = _globalTable.GetClassSymbolTableByName(currentScopeSpec);
if (classTable == null)
{
_errorStream.WriteLine($"ScopeSpec \"{currentScopeSpec}\" refers to a non existing class.");
Console.WriteLine($"Error: ScopeSpec \"{currentScopeSpec}\" refers to a non existing class.");
break;
}
children[i].SymTable = classTable;
children[i].SecondarySymTable = n.SymTable;
children[i].Accept(this);
currentScopeSpec = children[i].ScopeSpec;
}
var lhsType = children[children.Count - 2].ExprType;
if (!string.Equals(lhsType.Type, rhsType.Type) || !rhsType.Dims.SequenceEqual(lhsType.Dims))
{
_errorStream.WriteLine($"Assignment type missmatch! {lhsType.Type} <-> {rhsType.Type} (line: {line})");
Console.WriteLine($"Error: Assignment type missmatch! {lhsType.Type} <-> {rhsType.Type} (line: {line})");
}
}