From 25ab719cfaf42d196287fec2171bf3eefb845b62 Mon Sep 17 00:00:00 2001 From: Hans Bolinder Date: Wed, 30 Apr 2014 09:11:34 +0200 Subject: dialyzer: Introduce module local suppression of warnings The -dialyzer() attribute can be used for suppressing warnings in a module by specifying functions or warning options. It can also be used for requesting warnings in a module. --- lib/dialyzer/src/dialyzer_contracts.erl | 45 ++++++++++++++++++--------------- 1 file changed, 24 insertions(+), 21 deletions(-) (limited to 'lib/dialyzer/src/dialyzer_contracts.erl') diff --git a/lib/dialyzer/src/dialyzer_contracts.erl b/lib/dialyzer/src/dialyzer_contracts.erl index ee147ca102..39a178cb7d 100644 --- a/lib/dialyzer/src/dialyzer_contracts.erl +++ b/lib/dialyzer/src/dialyzer_contracts.erl @@ -351,7 +351,7 @@ solve_constraints(Contract, Call, Constraints) -> %% Checks the contracts for functions that are not implemented -spec contracts_without_fun(contracts(), [_], dialyzer_callgraph:callgraph()) -> - [dial_warning()]. + [raw_warning()]. contracts_without_fun(Contracts, AllFuns0, Callgraph) -> AllFuns1 = [{dialyzer_callgraph:lookup_name(Label, Callgraph), Arity} @@ -362,8 +362,9 @@ contracts_without_fun(Contracts, AllFuns0, Callgraph) -> [warn_spec_missing_fun(MFA, Contracts) || MFA <- ErrorContractMFAs]. warn_spec_missing_fun({M, F, A} = MFA, Contracts) -> - {FileLine, _Contract, _Xtra} = dict:fetch(MFA, Contracts), - {?WARN_CONTRACT_SYNTAX, FileLine, {spec_missing_fun, [M, F, A]}}. + {{File, Line}, _Contract, _Xtra} = dict:fetch(MFA, Contracts), + WarningInfo = {File, Line, MFA}, + {?WARN_CONTRACT_SYNTAX, WarningInfo, {spec_missing_fun, [M, F, A]}}. %% This treats the "when" constraints. It will be extended, we hope. insert_constraints([{subtype, Type1, Type2}|Left], Dict) -> @@ -585,7 +586,7 @@ general_domain([], AccSig) -> -spec get_invalid_contract_warnings([module()], dialyzer_codeserver:codeserver(), dialyzer_plt:plt(), - opaques_fun()) -> [dial_warning()]. + opaques_fun()) -> [raw_warning()]. get_invalid_contract_warnings(Modules, CodeServer, Plt, FindOpaques) -> get_invalid_contract_warnings_modules(Modules, CodeServer, Plt, FindOpaques, []). @@ -609,12 +610,14 @@ get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract, _Xtra}}|Left], Sig = erl_types:t_fun(Args, Ret), {M, _F, _A} = MFA, Opaques = FindOpaques(M), + {File, Line} = FileLine, + WarningInfo = {File, Line, MFA}, NewAcc = case check_contract(Contract, Sig, Opaques) of {error, invalid_contract} -> - [invalid_contract_warning(MFA, FileLine, Sig, RecDict)|Acc]; + [invalid_contract_warning(MFA, WarningInfo, Sig, RecDict)|Acc]; {error, {overlapping_contract, []}} -> - [overlapping_contract_warning(MFA, FileLine)|Acc]; + [overlapping_contract_warning(MFA, WarningInfo)|Acc]; {error, {extra_range, ExtraRanges, STRange}} -> Warn = case t_from_forms_without_remote(Contract#contract.forms, @@ -627,12 +630,12 @@ get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract, _Xtra}}|Left], end, case Warn of true -> - [extra_range_warning(MFA, FileLine, ExtraRanges, STRange)|Acc]; + [extra_range_warning(MFA, WarningInfo, ExtraRanges, STRange)|Acc]; false -> Acc end; {error, Msg} -> - [{?WARN_CONTRACT_SYNTAX, FileLine, Msg}|Acc]; + [{?WARN_CONTRACT_SYNTAX, WarningInfo, Msg}|Acc]; ok -> {M, F, A} = MFA, CSig0 = get_contract_signature(Contract), @@ -646,14 +649,14 @@ get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract, _Xtra}}|Left], BifSig = erl_types:t_fun(BifArgs, BifRet), case check_contract(Contract, BifSig, Opaques) of {error, _} -> - [invalid_contract_warning(MFA, FileLine, BifSig, RecDict) + [invalid_contract_warning(MFA, WarningInfo, BifSig, RecDict) |Acc]; ok -> - picky_contract_check(CSig, BifSig, MFA, FileLine, + picky_contract_check(CSig, BifSig, MFA, WarningInfo, Contract, RecDict, Acc) end; false -> - picky_contract_check(CSig, Sig, MFA, FileLine, Contract, + picky_contract_check(CSig, Sig, MFA, WarningInfo, Contract, RecDict, Acc) end end, @@ -662,20 +665,20 @@ get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract, _Xtra}}|Left], get_invalid_contract_warnings_funs([], _Plt, _RecDict, _FindOpaques, Acc) -> Acc. -invalid_contract_warning({M, F, A}, FileLine, SuccType, RecDict) -> +invalid_contract_warning({M, F, A}, WarningInfo, SuccType, RecDict) -> SuccTypeStr = dialyzer_utils:format_sig(SuccType, RecDict), - {?WARN_CONTRACT_TYPES, FileLine, {invalid_contract, [M, F, A, SuccTypeStr]}}. + {?WARN_CONTRACT_TYPES, WarningInfo, {invalid_contract, [M, F, A, SuccTypeStr]}}. -overlapping_contract_warning({M, F, A}, FileLine) -> - {?WARN_CONTRACT_TYPES, FileLine, {overlapping_contract, [M, F, A]}}. +overlapping_contract_warning({M, F, A}, WarningInfo) -> + {?WARN_CONTRACT_TYPES, WarningInfo, {overlapping_contract, [M, F, A]}}. -extra_range_warning({M, F, A}, FileLine, ExtraRanges, STRange) -> +extra_range_warning({M, F, A}, WarningInfo, ExtraRanges, STRange) -> ERangesStr = erl_types:t_to_string(ExtraRanges), STRangeStr = erl_types:t_to_string(STRange), - {?WARN_CONTRACT_SUPERTYPE, FileLine, + {?WARN_CONTRACT_SUPERTYPE, WarningInfo, {extra_range, [M, F, A, ERangesStr, STRangeStr]}}. -picky_contract_check(CSig0, Sig0, MFA, FileLine, Contract, RecDict, Acc) -> +picky_contract_check(CSig0, Sig0, MFA, WarningInfo, Contract, RecDict, Acc) -> CSig = erl_types:t_abstract_records(CSig0, RecDict), Sig = erl_types:t_abstract_records(Sig0, RecDict), case erl_types:t_is_equal(CSig, Sig) of @@ -685,7 +688,7 @@ picky_contract_check(CSig0, Sig0, MFA, FileLine, Contract, RecDict, Acc) -> erl_types:t_is_unit(erl_types:t_fun_range(CSig))) of true -> Acc; false -> - case extra_contract_warning(MFA, FileLine, Contract, + case extra_contract_warning(MFA, WarningInfo, Contract, CSig0, Sig0, RecDict) of no_warning -> Acc; {warning, Warning} -> [Warning|Acc] @@ -693,7 +696,7 @@ picky_contract_check(CSig0, Sig0, MFA, FileLine, Contract, RecDict, Acc) -> end end. -extra_contract_warning({M, F, A}, FileLine, Contract, CSig, Sig, RecDict) -> +extra_contract_warning({M, F, A}, WarningInfo, Contract, CSig, Sig, RecDict) -> %% We do not want to depend upon erl_types:t_to_string() possibly %% hiding the contents of opaque types. SigUnopaque = erl_types:t_unopaque(Sig), @@ -724,7 +727,7 @@ extra_contract_warning({M, F, A}, FileLine, Contract, CSig, Sig, RecDict) -> {?WARN_CONTRACT_NOT_EQUAL, {contract_diff, [M, F, A, ContractString, SigString]}} end, - {warning, {Tag, FileLine, Msg}} + {warning, {Tag, WarningInfo, Msg}} end. is_remote_types_related(Contract, CSig, Sig, RecDict) -> -- cgit v1.2.3