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inform7/inter/codegen-module/Chapter 3/Properties.w
2021-04-30 15:53:28 +01:00

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[SynopticProperties::] Properties.
To renumber the properties and construct suitable functions and arrays.
@ Before this runs, property packages are scattered all over the Inter tree.
We must allocate each one a unique ID.
As this is called, //Synoptic Utilities// has already formed a list |property_nodes|
of packages of type |_activity|.
=
void SynopticProperties::renumber(inter_tree *I, inter_tree_location_list *property_nodes) {
if (TreeLists::len(property_nodes) > 0) {
TreeLists::sort(property_nodes, Synoptic::module_order);
for (int i=0; i<TreeLists::len(property_nodes); i++) {
inter_package *pack = Inter::Package::defined_by_frame(property_nodes->list[i].node);
inter_tree_node *D = Synoptic::get_definition(pack, I"property_id");
D->W.data[DATA_CONST_IFLD+1] = (inter_ti) i;
}
}
}
@ There are also resources to create in the |synoptic| module:
@e CCOUNT_PROPERTY_SYNID
=
int SynopticProperties::redefine(inter_tree *I, inter_tree_node *P, inter_symbol *con_s, int synid) {
inter_package *pack = Inter::Packages::container(P);
inter_bookmark IBM = Inter::Bookmarks::at_end_of_this_package(pack);
switch (synid) {
case CCOUNT_PROPERTY_SYNID:
Inter::Symbols::strike_definition(con_s);
@<Define CCOUNT_PROPERTY@>;
break;
default: return FALSE;
}
return TRUE;
}
@<Define CCOUNT_PROPERTY@> =
Synoptic::def_numeric_constant(con_s, (inter_ti) TreeLists::len(property_nodes), &IBM);