mirror of
https://github.com/logos-messaging/nim-ffi.git
synced 2026-07-17 05:19:36 +00:00
45 lines
1.3 KiB
Nim
45 lines
1.3 KiB
Nim
## Helpers shared by the C/C++ binding generators (cpp.nim, c.nim).
|
|
|
|
import std/strutils
|
|
import ./meta, ./string_helpers
|
|
|
|
proc stripLibPrefix*(procName, libName: string): string =
|
|
## Drops the `<lib>_` prefix from an exported C symbol.
|
|
let prefix = libName & "_"
|
|
if procName.startsWith(prefix):
|
|
return procName[prefix.len .. ^1]
|
|
return procName
|
|
|
|
proc reqStructName*(p: FFIProcMeta): string =
|
|
## Per-proc wire envelope name: `<PascalCase(procName)>Req` (`...CtorReq` for ctors).
|
|
let camel = snakeToPascalCase(p.procName)
|
|
if p.kind == FFIKind.CTOR:
|
|
camel & "CtorReq"
|
|
else:
|
|
camel & "Req"
|
|
|
|
type ClassifiedProcs* = object
|
|
ctors*: seq[FFIProcMeta]
|
|
methods*: seq[FFIProcMeta]
|
|
dtorProcName*: string
|
|
|
|
proc classifyProcs*(procs: seq[FFIProcMeta]): ClassifiedProcs =
|
|
## Splits the registry into constructors, methods and the first destructor.
|
|
var c: ClassifiedProcs
|
|
for p in procs:
|
|
case p.kind
|
|
of FFIKind.CTOR:
|
|
c.ctors.add(p)
|
|
of FFIKind.FFI:
|
|
c.methods.add(p)
|
|
of FFIKind.DTOR:
|
|
if c.dtorProcName.len == 0:
|
|
c.dtorProcName = p.procName
|
|
c
|
|
|
|
proc libTypeName*(ctors: seq[FFIProcMeta], libName: string): string =
|
|
## The library type name, from the first ctor or derived from `libName`.
|
|
if ctors.len > 0:
|
|
return ctors[0].libTypeName
|
|
capitalizeFirstLetter(libName)
|