4e942b5373
Rename all example tests/companions to the XXXX-category-test-name scheme (per-category 100-blocks: basic 0010, types 0100, ... errors 1000, diagnostics 1100, ffi 1200, ffi-objc 1300, ffi-jni 1400, vectors 1500, platform 1600). Companions and dir/C fixtures move in lockstep with their parent test; #import/#source/#include paths rewritten to match. Expected output now lives in examples/expected/ (a sibling dir of the tests) split into three streams per the new convention: <name>.exit / <name>.stdout / <name>.stderr (+ optional <name>.ir) run_examples.sh rewritten: scans examples/ and issues/ for an expected/<name>.exit marker, captures stdout and stderr separately (no more 2>&1), compares each stream + exit + optional IR snapshot. Behavior validated unchanged: every renamed test reproduces its prior merged output + exit (diffs limited to file paths/basenames embedded in diagnostics + traces, which correctly reflect the new names). Suite: 292 passed, 0 failed. 50-smoke.sx split + issue relocation + docs follow in subsequent commits.
40 lines
1.5 KiB
Plaintext
40 lines
1.5 KiB
Plaintext
// Feature 1 — heterogeneous protocol-constrained variadic pack (binding).
|
|
//
|
|
// `..xs: Show` (no `[]`, no `$`) is a pack, not a slice: each call site
|
|
// monomorphizes with the concrete per-position arg types (Decision 1 — a pack
|
|
// is a comptime mechanism, no runtime pack value), and `xs.len` is a comptime
|
|
// constant. Arity and element types vary per call; each call is a distinct
|
|
// specialization.
|
|
//
|
|
// DESIGN (locked): a pack element is viewed THROUGH the protocol — only the
|
|
// protocol's own interface (its methods, and the projections `xs.T` / `xs.value`)
|
|
// is accessible, NOT arbitrary concrete members. So `xs[i].get()` / `xs.T` are
|
|
// the intended interface; `xs[i].v` (a field on the concrete IntBox, not part
|
|
// of `Show`) is an error. Those are still being implemented — this example
|
|
// locks in only the binding + comptime `xs.len`, the protocol-agnostic part.
|
|
|
|
#import "modules/std.sx";
|
|
|
|
Show :: protocol(T: Type) {
|
|
get :: (self: *Self) -> T;
|
|
}
|
|
|
|
IntBox :: struct { v: s64; }
|
|
StrBox :: struct { s: string; }
|
|
impl Show(s64) for IntBox { get :: (self: *IntBox) -> s64 => self.v; }
|
|
impl Show(string) for StrBox { get :: (self: *StrBox) -> string => self.s; }
|
|
|
|
howmany :: (..xs: Show) -> s64 {
|
|
return xs.len;
|
|
}
|
|
|
|
main :: () -> s32 {
|
|
a := IntBox.{ v = 42 };
|
|
b := IntBox.{ v = 7 };
|
|
c := StrBox.{ s = "cool" };
|
|
print("n0={}\n", howmany()); // empty pack
|
|
print("n2={}\n", howmany(a, b)); // two elements
|
|
print("n3={}\n", howmany(a, b, c)); // heterogeneous: IntBox, IntBox, StrBox
|
|
0;
|
|
}
|