public override void ExitAssign1(ssuplParser.Assign1Context context)
{
// assign ``:`` ID EQ expr
string vname = context.ID().GetText();
if (!symtable.Contains(vname))
{
throw new Exception("Undeclared variable: " + vname);
}
if (type(context.expr()) != symtable.Get(vname).type)
{
throw new Exception("Variable type mismatch in assignment");
}
VarType vtype = symtable.Get(vname).type;
int vsizeInQuads = SizeForType(vtype) / 8;
string lbl = symtable.Get(vname).location;
ASM asmcode = new ASM();
asmcode += code.Get(context.expr());
for (int i = 0; i < vsizeInQuads; i++)
{
asmcode += "pop rax";
asmcode += $"mov [{lbl}+{i * 8}],rax";
}
code.Put(context, asmcode);
typeAttr.Put(context, vtype);
}
/// <summary>
/// Exit a parse tree produced by the <c>assign1</c>
/// labeled alternative in <see cref="ssuplParser.assign"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitAssign1([NotNull] ssuplParser.Assign1Context context)
{
}