mirror of
https://github.com/nim-lang/Nim.git
synced 2026-09-01 19:33:42 +00:00
bff0bc45fd
`nim c --ic:on` could not compile anything that reached `std/tempfiles`:
lib/std/tempfiles.nim(115, 38) Error: type mismatch
Expression: initRand()
Expected one of: [1] proc initRand(seed: int64)
That is `std/random`. It declares `proc initRand(): Rand` WITHOUT a `*`
and then, forty lines later, `since (1, 5, 1): export initRand`.
Two mechanisms make a symbol importable and the writer only knew one.
`sfExported` is the `*` on the declaration; `semExport` instead calls
`reexportSym`, which adds the symbol to the module's interface table and
sets no flag. `writeSymDef` decided the NIF `x` marker — "importable as a
bare identifier" — from `sfExported` alone, so a symbol exported the
second way shipped as private and its importer reported an undeclared
identifier. Nothing about this is IC-specific in the source; it is
ordinary stdlib code that classic compilation accepts.
So ask the interface too: `reexportedLocalSyms` collects the symbols a
module defines that reached its interface without the flag, and they get
the marker. Symbols that are genuinely private still do not — the
regression test's sibling case (`proc g()`, never exported) is still
rejected under both `--ic:on` and `--ic:off`.
This was found by pointing `--ic:on` at Atlas, which is now the first
sizeable third-party program it builds. `nim c --ic:off` and `--ic:on`
produce the same working binary from the same 209-module closure.
ic 41/41 (the new test is the 41st), `koch boot -d:release` equal
executables.
5 lines
130 B
Nim
5 lines
130 B
Nim
proc pub*(x: int): int = x + 1
|
|
|
|
proc hidden(): int = 42 # no `*` ...
|
|
export hidden # ... but explicitly re-exported
|