/// Return the symbol pointer to the individual field that this
/// structselect represents; also set structid to the ID of the
/// structure type, and fieldid to the field index within the struct.
Symbol *
ASTstructselect::find_fieldsym (int &structid, int &fieldid)
{
if (! lvalue()->typespec().is_structure() &&
! lvalue()->typespec().is_structure_array()) {
return NULL;
}
ustring structsymname;
TypeSpec structtype;
find_structsym (lvalue().get(), structsymname, structtype);
structid = structtype.structure();
StructSpec *structspec (structtype.structspec());
fieldid = -1;
for (int i = 0; i < (int)structspec->numfields(); ++i) {
if (structspec->field(i).name == m_field) {
fieldid = i;
break;
}
}
if (fieldid < 0) {
error ("struct type '%s' does not have a member '%s'",
structspec->name().c_str(), m_field.c_str());
return NULL;
}
const StructSpec::FieldSpec &fieldrec (structspec->field(fieldid));
ustring fieldsymname = ustring::format ("%s.%s", structsymname.c_str(),
fieldrec.name.c_str());
Symbol *sym = m_compiler->symtab().find (fieldsymname);
return sym;
}
