bare func declaration identities (comptime)

README.md

@@ -144,15 +144,20 @@ call_mapper func(mapper native.Imported_Mapper) c_int {
 }
 ```
 
-Native Brolang function pointer values use `*func(...) R`, with fallible
+Native Brolang function pointer values use `@func(...) R`, with fallible
 channels written on the result:
 
 ```bro
-call func(callback *func(value i32) i32, value i32) i32 {
+call func(callback @func(value i32) i32, value i32) i32 {
 	return callback(value)
 }
 ```
 
+Bare `func(...) R` and `c_func(...) R` values are comptime-only declaration
+identities. They implicitly materialize compatible pointers in runtime pointer
+contexts; pointers do not convert back to bare identities. Aggregates containing
+bare identities are likewise comptime-only.
+
 Bodyless manual and imported C functions may be variadic:
 
 ```bro
@@ -226,11 +231,12 @@ Current prototype features:
 - Plain imported C structs/unions, fixed arrays, and C function pointer typedefs, including keyed literals, field access, callbacks, and Apple Silicon by-value ABI lowering
 - Qualified imported globals and functions with package-aware symbol mangling
 - Demand-monomorphized Brolang and C-ABI functions
-- Recursively stable comptime values—including booleans, integers, floats, types, immutable bytes, enums, fixed arrays, records/tuples, optionals, tagged unions, and concrete function values—may be interleaved with runtime parameters, are erased from the ABI, and specialize from explicit arguments, declaration identity, or exact inference provenance
+- Recursively stable comptime values—including booleans, integers, floats, types, immutable bytes, enums, fixed arrays, records/tuples, optionals, tagged unions, and bare function identities—may be interleaved with runtime parameters, are erased from the ABI, and specialize from explicit arguments, declaration identity, or exact inference provenance
 - Forced typed comptime expressions (`$sum(1, 2)`, `$Point { x = 1, y = 2 }`) and comptime value blocks (`${ yield 4 }`)
 - Zig-style comptime type factories returning anonymous native structs (`Box func($T type) type`, used as `Box(i32)`)
 - Comptime execution for bodyful Brolang functions with mutable locals, loops, `defer`/`errdefer`, `match`, `try`/`catch`, pointer/slice storage mutation, pointer captures, and calls through comptime-known function values
-- Native function pointer values and types (`*func(...) R`, `*func(...) R ! E`, `?*func(...) R`)
+- Comptime-only native and C function identities (`func(...) R`, `c_func(...) R`) with structural comptime-only propagation through aggregates
+- Native function pointer values and types (`@func(...) R`, `@func(...) R ! E`, `?@func(...) R`) with implicit bare-to-pointer materialization
 - Typed allocation/reallocation through `std/mem` and generic dynamic arrays through `std/arraylist`
 - Bodyless concrete C function declarations with exact external symbol names
 - Bodyless manual and imported C variadic declarations with default argument promotions