private void VisitAssignStatement(ASTAssignStatementNode assignNode)
{
if (assignNode.Left is ASTVariableNode varNode)
{
VisitVariable(varNode);
}
}
/// <summary>
/// Builds assignment statement
/// </summary>
/// <param name="assignNode">Assignment statement node</param>
private void BuildAssignStatement(ASTAssignStatementNode assignNode)
{
//to dictionary assign
if (assignNode.Left is ASTIndexOpNode indexNode)
{
//get object
BuildIndexOp(indexNode);
//get index
BuildExpression(indexNode.Index);
_emitter.Box();
//get value
BuildExpression(assignNode.Right);
_emitter.Box();
//call setter
_emitter.VirtualCall(typeof(Dictionary <object, object>), "set_Item", new Type[] { typeof(object), typeof(object) });
}
if (assignNode.Left is ASTVariableNode varNode)//to local assign
{
BuildExpression(assignNode.Right);
_emitter.Box();
if (_context.IsLocal(varNode.Name))
{
_emitter.StoreLocal(_context.GetLocal(varNode.Name));
}
else
{
_emitter.StoreArg(_context.GetArgID(varNode.Name));
}
}
}
private void CheckAssignStatement(ASTAssignStatementNode assignNode)
{
if (IsRvalue(assignNode.Left))
{
_messages.Add(new MessageRecord(
MsgCode.RvalueAssign,
assignNode.SourcePath,
assignNode.StartLine,
assignNode.StartPos,
null
));
}
else
{
CheckExpression(assignNode.Left);
}
CheckExpression(assignNode.Right);
}