RUN: llvm-cxxfilt -n  < %s | FileCheck --match-full-lines %s

CHECK: a::main
       _RNvC1a4main

CHECK: hello::rust
       _RNvCshGpAVYOtgW1_5hello4rust

CHECK: a::b::c
       _RNvNvC1a1b1c

; Closure namespace

CHECK: crate::{closure#0}
       _RNCC5crate0

CHECK: crate::{closure#1}
       _RNCC5crates_0

CHECK: crate::{closure:foo#0}
       _RNCC5crate3foo

CHECK: crate::{closure:foo#1}
       _RNCC5crates_3foo

; Shim namespace

CHECK: crate::{shim:reify#0}
       _RNSC5crate5reify

; Unrecognized special namespace

CHECK: crate::{Z:ident#10}
       _RNZC5crates8_5ident

; Generic type arguments

CHECK: generic::<_>
       _RIC7genericpE

CHECK: generic::<_, _>
       _RIC7genericppE

CHECK: generic::<_, _, _>
       _RIC7genericpppE

; Basic types

CHECK: basic::<i8>
       _RIC5basicaE

CHECK: basic::<bool>
       _RIC5basicbE

CHECK: basic::<char>
       _RIC5basiccE

CHECK: basic::<f64>
       _RIC5basicdE

CHECK: basic::<str>
       _RIC5basiceE

CHECK: basic::<f32>
       _RIC5basicfE

CHECK: basic::<u8>
       _RIC5basichE

CHECK: basic::<isize>
       _RIC5basiciE

CHECK: basic::<usize>
       _RIC5basicjE

CHECK: basic::<i32>
       _RIC5basiclE

CHECK: basic::<u32>
       _RIC5basicmE

CHECK: basic::<i128>
       _RIC5basicnE

CHECK: basic::<u128>
       _RIC5basicoE

CHECK: basic::<_>
       _RIC5basicpE

CHECK: basic::<i16>
       _RIC5basicsE

CHECK: basic::<u16>
       _RIC5basictE

CHECK: basic::<()>
       _RIC5basicuE

CHECK: basic::<...>
       _RIC5basicvE

CHECK: basic::<i64>
       _RIC5basicxE

CHECK: basic::<u64>
       _RIC5basicyE

CHECK: basic::<!>
       _RIC5basiczE

; Invalid mangled characters

CHECK: _RNvC2a.1c
       _RNvC2a.1c

CHECK: _RNvC2a$1c
       _RNvC2a$1c

; Invalid namespace (not in [a-zA-Z]).

CHECK: _RN_C5crate4main
       _RN_C5crate4main

; Invalid identifier length (UINT64_MAX + 3, which happens to be ok after a wraparound).

CHECK: _RNvC2ab18446744073709551618xy
       _RNvC2ab18446744073709551618xy

; Mangling scheme includes an optional encoding version. When present it would
; indicate an encoding we don't support yet. Check that it is rejected:

CHECK: _R0NvC1a4main
       _R0NvC1a4main

; Early EOF

CHECK: _RNv
       _RNv

CHECK: _RNvC
       _RNvC

CHECK: _RNvC1a5main
       _RNvC1a5main

CHECK: _RNvC1a20abc
       _RNvC1a20abc