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).
37 lines
1.4 KiB
Plaintext
37 lines
1.4 KiB
Plaintext
// Comptime compiler API — read-only reflection readers (Phase 3).
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//
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// `find_type` / `type_field_count` are bound to the `compiler` library via
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// `abi(.compiler)`, joining the `intern` / `text_of` seed. They are
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// the first REFLECTION readers: the compiler exposes its own type table to
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// comptime sx as plain handles (a `TypeId` is a u32, like a `StringId`), so the
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// calls are clean scalar host-calls — handle in, scalar out, no marshaling.
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//
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// find_type(name) → the named type's handle (0 / `unresolved` if absent)
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// type_field_count(t) → its member count (struct fields here)
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//
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// Comptime-only: they run inside `#run`, folding to plain int constants the
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// runtime `main` prints. Chains `intern` → `find_type` → `type_field_count`.
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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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find_type :: (name: StringId) -> TypeId abi(.compiler);
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type_field_count :: (t: TypeId) -> i64 abi(.compiler);
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Point :: struct { x: i64; y: i64; z: i64; }
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// Look the struct up by name and count its fields, all at comptime.
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point_fields :: #run type_field_count(find_type(intern("Point")));
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// A name with no matching type folds to the `unresolved` sentinel (0).
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missing_id :: #run find_type(intern("NoSuchType"));
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main :: () {
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print("Point has {} fields\n", point_fields);
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print("missing type id = {}\n", missing_id);
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}
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