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bux-lang/tests/stdlib_golden/collections/src/Main.bux
T
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feat: generic enums, fix is-operator, Type_Eq, hardcoded limit diagnostics
- feat: generic enum support (parser, lowering, codegen — both selfhost + bootstrap)
  - enum Result<T,E> { Ok(T), Err(E) } parsing + monomorphization
  - tag constant mangling in monomorphized function bodies
  - data field access (l-value + r-value) for generated enum instances
  - multiple concrete instances in same file
  - HIR walker for enum reference mangling (selfhost + bootstrap)

- feat: stdlib Result<T,E> and Option<T> made truly generic
  - breaking: explicit type args required (Result<int, String>)

- fix: 'is' operator — lowering to hBinary tag comparison + C backend fallback
- fix: Type_Eq structural comparison (inner types for pointer/slice/tuple)
- fix: hardcoded limit diagnostics (>8 params/variants/captures now emit errors)
- docs: Iter<T> safety warning for dangling pointer
- docs: IMPROVEMENTS.md — comprehensive plan and changelog
- test: generic_enum example added to EXAMPLES

All tests pass (0 FAIL). Selfhost loop deterministic.
2026-07-28 01:54:15 +03:00

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// Stdlib golden: Map / Set / Result / Option helpers
import Std::Io::{PrintLine};
import Std::Map::{
Map, Map_New, Map_Set, Map_Get, Map_Has, Map_Remove, Map_Clear,
Map_Len, Map_IsEmpty, Map_Free
};
import Std::Set::{
Set, Set_New, Set_Add, Set_Has, Set_Remove, Set_Len, Set_IsEmpty, Set_Free
};
import Std::Result::{
Result, Result_NewOk, Result_NewErr, Result_IsOk, Result_IsErr,
Result_UnwrapOr, Result_Or, Result_UnwrapErr
};
import Std::Option::{
Option, Option_NewSome, Option_NewNone, Option_IsSome, Option_Or, Option_UnwrapOr
};
import Std::String::{String_Eq};
import Std::Test::{
Test_AssertTrue, Test_AssertFalse, Test_AssertEqInt, Test_Pass
};
func Main() -> int {
var m: Map<int, int> = Map_New<int, int>(16);
Map_Set<int, int>(&m, 1, 100);
Map_Set<int, int>(&m, 2, 200);
Map_Set<int, int>(&m, 3, 300);
Test_AssertEqInt(Map_Len<int, int>(&m) as int, 3);
Test_AssertTrue(Map_Has<int, int>(&m, 2));
Test_AssertTrue(Map_Remove<int, int>(&m, 2));
Test_AssertFalse(Map_Has<int, int>(&m, 2));
Test_AssertEqInt(Map_Get<int, int>(&m, 1), 100);
Test_AssertFalse(Map_Remove<int, int>(&m, 99));
Map_Clear<int, int>(&m);
Test_AssertTrue(Map_IsEmpty<int, int>(&m));
Map_Free<int, int>(&m);
var s: Set<int> = Set_New<int>(16);
Set_Add<int>(&s, 10);
Set_Add<int>(&s, 20);
Set_Add<int>(&s, 30);
Test_AssertTrue(Set_Remove<int>(&s, 20));
Test_AssertFalse(Set_Has<int>(&s, 20));
Test_AssertTrue(Set_Has<int>(&s, 10));
Test_AssertEqInt(Set_Len<int>(&s) as int, 2);
Test_AssertFalse(Set_IsEmpty<int>(&s));
Set_Free<int>(&s);
let ok: Result<int, String> = Result_NewOk<int, String>(42);
let err: Result<int, String> = Result_NewErr<int, String>("boom");
Test_AssertTrue(Result_IsOk<int, String>(ok));
Test_AssertTrue(Result_IsErr<int, String>(err));
Test_AssertEqInt(Result_UnwrapOr<int, String>(err, -1), -1);
let recovered: Result<int, String> = Result_Or<int, String>(err, Result_NewOk<int, String>(7));
Test_AssertEqInt(Result_UnwrapOr<int, String>(recovered, 0), 7);
Test_AssertTrue(String_Eq(Result_UnwrapErr<int, String>(err), "boom"));
let some: Option<int> = Option_NewSome<int>(5);
let none: Option<int> = Option_NewNone<int>();
Test_AssertTrue(Option_IsSome<int>(some));
Test_AssertEqInt(Option_UnwrapOr<int>(none, 9), 9);
let filled: Option<int> = Option_Or<int>(none, Option_NewSome<int>(3));
Test_AssertEqInt(Option_UnwrapOr<int>(filled, 0), 3);
PrintLine("stdlib_collections: ok");
Test_Pass("stdlib_collections");
return 0;
}