2060373c16
Lands the full VM/compiler-API arc on branch reify (701/0 both gates): - abi(.compiler) ABI replaces abi(.zig) extern compiler + the fake #library "compiler"; bodiless decl = compiler-API surface, bodied = user compiler-domain fn (lowered for VM eval, emit-skipped). - out is a plain sx fn (libc write) — the out builtin deleted; the VM handles it via host-FFI. trace_resolve + interp_print_frames ported. - 4B VM-native diagnostics: 1179/1180 render proper comptime type construction failed: under strict. - S5a: build_options/set_post_link_callback on abi(.compiler) with BuildConfig threaded into the VM (green intermediate). - 0522 fixed (describe(args: []Type)); regression 0638. Strict deletion-gate down to 4 compiler_call bails (1609/1614/1615/1616) + 1654 (legitimate unresolvable-symbol diagnostic).
47 lines
2.1 KiB
Plaintext
47 lines
2.1 KiB
Plaintext
// Comptime compiler API — type-kind + enum-value reflection readers (Phase 3).
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//
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// Completes the READ side the metatype needs to re-express `type_info(T)` as sx:
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//
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// type_kind(t) → a stable kind discriminant, to branch on the shape
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// (0 other · 1 struct · 2 enum · 3 tagged_union ·
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// 4 tuple · 5 union · 6 array · 7 vector · 8 error_set)
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// type_field_value(t, i) → enum variant i's integer value (explicit or ordinal)
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//
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// Together with find_type / type_field_count / type_field_name / type_field_type
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// / type_nominal_name (examples 0628–0629), a comptime sx function can now fully
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// reflect a struct/enum/tuple into data — no `#builtin` needed. All folded at
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// `#run`, all serviced natively by the flat-memory VM.
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#import "modules/std.sx";
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StringId :: u32;
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TypeId :: u32;
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intern :: (s: string) -> StringId abi(.compiler);
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text_of :: (id: StringId) -> string abi(.compiler);
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find_type :: (name: StringId) -> TypeId abi(.compiler);
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type_kind :: (t: TypeId) -> i64 abi(.compiler);
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type_field_name :: (t: TypeId, idx: i64) -> StringId abi(.compiler);
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type_field_value :: (t: TypeId, idx: i64) -> i64 abi(.compiler);
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Color :: enum { red; green; blue; }
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WindowFlags :: enum flags u32 { vsync :: 64; resizable :: 4; hidden :: 128; }
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Point :: struct { x: i64; y: i64; }
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color_kind :: #run type_kind(find_type(intern("Color"))); // 2 = enum
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point_kind :: #run type_kind(find_type(intern("Point"))); // 1 = struct
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// Plain enum → ordinal values.
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green_val :: #run type_field_value(find_type(intern("Color")), 1); // 1
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// Flags enum → explicit values, read by name + value.
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vsync_name :: #run text_of(type_field_name(find_type(intern("WindowFlags")), 0)); // "vsync"
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vsync_val :: #run type_field_value(find_type(intern("WindowFlags")), 0); // 64
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main :: () {
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print("Color kind = {}, Point kind = {}\n", color_kind, point_kind);
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print("Color.green = {}\n", green_val);
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print("WindowFlags.{} = {}\n", vsync_name, vsync_val);
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}
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