public override bool Visit(AstAssignStatement node)
{
return true;
}
public override bool Visit(AstAssignStatement node)
{
ErrorIfIsNull(node.NewValue);
ErrorIfIsNull(node.Variable);
return true;
}
// #ASSIGN_STATEMENT ID ASSIGNMENT #EXPRESSION
private void ConstructAssignStatement()
{
var expr = nodes.Pop() as AstExpression;
var variable = nodes.Pop() as AstIdExpression;
var assignStmt = new AstAssignStatement(variable, expr);
PushNode(assignStmt);
}
// #ASSIGN_STATEMENT ID #ARRAY ASSIGNMENT #EXPRESSION
private void ConstructAssignArrayStatement()
{
var newValue = nodes.Pop() as AstExpression;
List<AstArrayIndex> indices = new List<AstArrayIndex>();
while (nodes.Peek() is AstArrayIndex)
{
indices.Insert(0, nodes.Pop() as AstArrayIndex);
}
AstExpressionList index = new AstExpressionList(indices.ToArray());
var id = nodes.Pop() as AstIdExpression;
var idArrExpression = new AstIdArrayExpression(id.Id, index);
idArrExpression.SetTextPosition( tokenCurrPosition );
var node = new AstAssignStatement(idArrExpression, newValue);
PushNode(node);
}
public override bool Visit(AstAssignStatement node)
{
var symbolTableVariable = table.Lookup(node.Variable.Id);
node.NewValue.Accept(this);
if (Symbol.IsArray(symbolTableVariable))
{
arrAssign = true;
var newValueVar = GetCurrUnnamedVariable();
node.Variable.Accept(this);
var index = GetCurrUnnamedVariable();
codeStream.WriteLine("store i32 " + newValueVar + ", "
+ GetLLVMType(symbolTableVariable.Type) + "* " + GetCurrUnnamedVariable());
arrAssign = false;
}
else if (classVariables.Contains(node.Variable.Id))
{
codeStream.WriteLine("store " + GetLLVMType(symbolTableVariable.Type) + " " + GetCurrUnnamedVariable()
+ ", " + GetLLVMType(symbolTableVariable.Type) + "* @" + node.Variable.Id);
}
else if (symbolTableVariable.Type == BuiltInTypes.STRING)
{
}
else
{
UseVaribaleCatched(node.Variable.Id);
var name = GetCurrVariableState(node.Variable.Id);
var type = GetLLVMType(symbolTableVariable.Type);
codeStream.WriteLine("%" + name + " = add " + type + " 0, " + GetCurrUnnamedVariable());
}
return false;
}
public override bool Visit(AstAssignStatement node)
{
var leftType = resolver.Resolve(node.Variable);
var rightType = resolver.Resolve(node.NewValue);
if (leftType != rightType)
{
DispatchError(node.TextPosition, "Can not assign " + rightType + " to variable of type " + leftType );
return false;
}
currStateInsideExpr = false;
node.Variable.Accept(this);
currStateInsideExpr = true;
node.NewValue.Accept(this);
return false;
}
public abstract bool Visit(AstAssignStatement node);
