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| author | Anthony Ramine <[email protected]> | 2013-01-11 17:08:08 +0100 |
|---|---|---|
| committer | Anthony Ramine <[email protected]> | 2013-01-16 15:07:52 +0100 |
| commit | 25904f0e6ed034979c2686c6c08daf3ba231ebcc (patch) | |
| tree | 3db83709ac20165eb50a5680b946ae86a5241f55 /lib/compiler/src | |
| parent | 3e8a6c8bceea8552ef50bd8dcfc14a0f79c9f32e (diff) | |
| download | otp-25904f0e6ed034979c2686c6c08daf3ba231ebcc.tar.gz otp-25904f0e6ed034979c2686c6c08daf3ba231ebcc.tar.bz2 otp-25904f0e6ed034979c2686c6c08daf3ba231ebcc.zip | |
Forbid local fun variables in Core Erlang guards
Local fun variables are disallowed in both Erlang and Core Erlang guards
but core_lint doesn't detect this kind of error, making the compilation
fail later in the BEAM assembly generation. A guard is added to only
allow #c_var{} terms where the name is an atom or an integer, which is
the type used by the inliner when introducing new variables.
Diffstat (limited to 'lib/compiler/src')
| -rw-r--r-- | lib/compiler/src/core_lint.erl | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/compiler/src/core_lint.erl b/lib/compiler/src/core_lint.erl index b513a8965c..21296a8b66 100644 --- a/lib/compiler/src/core_lint.erl +++ b/lib/compiler/src/core_lint.erl @@ -247,7 +247,8 @@ gbody(E, Def, Rt, St0) -> false -> St1 end. -gexpr(#c_var{name=N}, Def, _Rt, St) -> expr_var(N, Def, St); +gexpr(#c_var{name=N}, Def, _Rt, St) when is_atom(N); is_integer(N) -> + expr_var(N, Def, St); gexpr(#c_literal{}, _Def, _Rt, St) -> St; gexpr(#c_cons{hd=H,tl=T}, Def, _Rt, St) -> gexpr_list([H,T], Def, St); |