how to combine this two scope into one scope

[zrwsmd]

the stream scope API is a little abstract to combine,so how to combine this two scope into one scope

private scopeStructMembers(struct: StructsList): Scope {
const allMembers = this.getStructChain(struct).flatMap((e) => e.items);
const s = stream(allMembers)
.map((e) => {
return this.descriptions.createDescription(e, e.variables);
})
.nonNullable();
return new StreamScope(s);
}

---

private scopeStructMembers(struct: StructsList): Scope {
const allMembers = this.getStructChain(struct).flatMap((e) => e.items);
const s = stream(allMembers)
.map((e) => {
return this.descriptions.createDescription(e, e.variables);
})
.nonNullable();
const allDecl = struct.items as unknown as Struct_Var_Decl_Init[];
let hasNextDecl = allDecl.filter((item) => item.nextVariables.length > 0);
let outerScope;
hasNextDecl.forEach((item) => {
let nextVariables = item.nextVariables;
let nextScope = this.handleNextVariables(item, nextVariables);
outerScope = new StreamScope(s, nextScope);
});
return this.createScopeForNodes(allMembers, outerScope);
}

[zrwsmd]

TYPE
Struct111: STRUCT
aa,bb,cc,dd: INT;
END_STRUCT
END_TYPE

PROGRAM Test
VAR
s1:Struct111
END_VAR

for my using,the above first struct scope method can handle s1.aa:=1;(first variables in var declaration)

while above second struct scope method can handle s1.bb:=1; or s1.cc:=1; or s1.dd:=1;
but i want to combine it into one scopeStructMembers method

[msujew]

Hey @zrwsmd,

the naive and generic method simply would be to do the following:

return new StreamScope(scopeA.getAllElements().concat(scopeB.getAllElements()));

I would assume there is a solution with better performance, for the specific case.