66bdc70bf1
Move examples/*.sx and their expected/ snapshots into per-category subfolders (examples/<category>/...). Folder = leading filename token, with ffi-objc/ffi-jni kept whole; filenames are unchanged. The corpus runner and LSP sweep now discover each category's expected/ dir, while issues/ stays flat. Example 1058's repo-root-relative companion import is made file-relative. Path strings embedded in 164 snapshots were regenerated (path-only changes). Test-layout docs in CLAUDE.md updated.
47 lines
2.1 KiB
Plaintext
47 lines
2.1 KiB
Plaintext
// Comptime compiler API — type-kind + enum-value reflection readers (Phase 3).
|
||
//
|
||
// Completes the READ side the metatype needs to re-express `type_info(T)` as sx:
|
||
//
|
||
// type_kind(t) → a stable kind discriminant, to branch on the shape
|
||
// (0 other · 1 struct · 2 enum · 3 tagged_union ·
|
||
// 4 tuple · 5 union · 6 array · 7 vector · 8 error_set)
|
||
// type_field_value(t, i) → enum variant i's integer value (explicit or ordinal)
|
||
//
|
||
// Together with find_type / type_field_count / type_field_name / type_field_type
|
||
// / type_nominal_name (examples 0628–0629), a comptime sx function can now fully
|
||
// reflect a struct/enum/tuple into data — no `#builtin` needed. All folded at
|
||
// `#run`, all serviced natively by the flat-memory VM.
|
||
|
||
#import "modules/std.sx";
|
||
|
||
|
||
StringId :: u32;
|
||
TypeId :: u32;
|
||
|
||
intern :: (s: string) -> StringId abi(.compiler);
|
||
text_of :: (id: StringId) -> string abi(.compiler);
|
||
find_type :: (name: StringId) -> TypeId abi(.compiler);
|
||
type_kind :: (t: TypeId) -> i64 abi(.compiler);
|
||
type_field_name :: (t: TypeId, idx: i64) -> StringId abi(.compiler);
|
||
type_field_value :: (t: TypeId, idx: i64) -> i64 abi(.compiler);
|
||
|
||
Color :: enum { red; green; blue; }
|
||
WindowFlags :: enum flags u32 { vsync :: 64; resizable :: 4; hidden :: 128; }
|
||
Point :: struct { x: i64; y: i64; }
|
||
|
||
color_kind :: #run type_kind(find_type(intern("Color"))); // 2 = enum
|
||
point_kind :: #run type_kind(find_type(intern("Point"))); // 1 = struct
|
||
|
||
// Plain enum → ordinal values.
|
||
green_val :: #run type_field_value(find_type(intern("Color")), 1); // 1
|
||
|
||
// Flags enum → explicit values, read by name + value.
|
||
vsync_name :: #run text_of(type_field_name(find_type(intern("WindowFlags")), 0)); // "vsync"
|
||
vsync_val :: #run type_field_value(find_type(intern("WindowFlags")), 0); // 64
|
||
|
||
main :: () {
|
||
print("Color kind = {}, Point kind = {}\n", color_kind, point_kind);
|
||
print("Color.green = {}\n", green_val);
|
||
print("WindowFlags.{} = {}\n", vsync_name, vsync_val);
|
||
}
|