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| author | Björn Gustavsson <[email protected]> | 2019-02-13 08:58:01 +0100 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2019-02-13 09:55:02 +0100 |
| commit | 5c4e24725e1f4b2db89b8f58423a0ba29132faf9 (patch) | |
| tree | 036214f8cc9d829a5bca12b28c1b2601cfa8f979 | |
| parent | 485713afa0d2481e93882bc386aebb06a49c04bc (diff) | |
| download | otp-5c4e24725e1f4b2db89b8f58423a0ba29132faf9.tar.gz otp-5c4e24725e1f4b2db89b8f58423a0ba29132faf9.tar.bz2 otp-5c4e24725e1f4b2db89b8f58423a0ba29132faf9.zip | |
Make dialyzer faster for left-associative andalso/orelse expressions
https://bugs.erlang.org/browse/ERL-851
| -rw-r--r-- | lib/compiler/src/v3_core.erl | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/compiler/src/v3_core.erl b/lib/compiler/src/v3_core.erl index 27131bc3ab..66e578b776 100644 --- a/lib/compiler/src/v3_core.erl +++ b/lib/compiler/src/v3_core.erl @@ -766,14 +766,16 @@ expr({op,_,'++',{lc,Llc,E,Qs0},More}, St0) -> {Qs,St2} = preprocess_quals(Llc, Qs0, St1), {Y,Yps,St} = lc_tq(Llc, E, Qs, Mc, St2), {Y,Mps++Yps,St}; -expr({op,L,'andalso',E1,E2}, St0) -> +expr({op,_,'andalso',_,_}=E0, St0) -> + {op,L,'andalso',E1,E2} = right_assoc(E0, 'andalso', St0), Anno = lineno_anno(L, St0), {#c_var{name=V0},St} = new_var(Anno, St0), V = {var,L,V0}, False = {atom,L,false}, E = make_bool_switch(L, E1, V, E2, False, St0), expr(E, St); -expr({op,L,'orelse',E1,E2}, St0) -> +expr({op,_,'orelse',_,_}=E0, St0) -> + {op,L,'orelse',E1,E2} = right_assoc(E0, 'orelse', St0), Anno = lineno_anno(L, St0), {#c_var{name=V0},St} = new_var(Anno, St0), V = {var,L,V0}, |