diff options
| -rw-r--r-- | lib/syntax_tools/src/erl_prettypr.erl | 21 | ||||
| -rw-r--r-- | lib/syntax_tools/src/erl_syntax.erl | 135 | ||||
| -rw-r--r-- | lib/syntax_tools/src/erl_syntax_lib.erl | 80 | ||||
| -rw-r--r-- | lib/syntax_tools/src/erl_tidy.erl | 30 | ||||
| -rw-r--r-- | lib/syntax_tools/src/igor.erl | 23 |
5 files changed, 14 insertions, 275 deletions
diff --git a/lib/syntax_tools/src/erl_prettypr.erl b/lib/syntax_tools/src/erl_prettypr.erl index 919df337d0..81272e62de 100644 --- a/lib/syntax_tools/src/erl_prettypr.erl +++ b/lib/syntax_tools/src/erl_prettypr.erl @@ -50,8 +50,7 @@ | fun((erl_syntax:syntaxTree(), _, _) -> prettypr:document()). -type clause_t() :: 'case_expr' | 'cond_expr' | 'fun_expr' | 'if_expr' | 'receive_expr' | 'try_expr' - | {'function', prettypr:document()} - | {'rule', prettypr:document()}. + | {'function', prettypr:document()}. -record(ctxt, {prec = 0 :: integer(), sub_indent = 2 :: non_neg_integer(), @@ -587,8 +586,6 @@ lay_2(Node, Ctxt) -> make_case_clause(D1, D2, D3, Ctxt); try_expr -> make_case_clause(D1, D2, D3, Ctxt); - {rule, N} -> - make_rule_clause(N, D1, D2, D3, Ctxt); undefined -> %% If a clause is formatted out of context, we %% use a "fun-expression" clause style. @@ -922,15 +919,6 @@ lay_2(Node, Ctxt) -> D2 = lay(erl_syntax:map_field_exact_value(Node), Ctxt1), par([D1, floating(text(":=")), D2], Ctxt1#ctxt.break_indent); - rule -> - %% Comments on the name will be repeated; cf. - %% `function'. - Ctxt1 = reset_prec(Ctxt), - D1 = lay(erl_syntax:rule_name(Node), Ctxt1), - D2 = lay_clauses(erl_syntax:rule_clauses(Node), - {rule, D1}, Ctxt1), - beside(D2, floating(text("."))); - size_qualifier -> Ctxt1 = set_prec(Ctxt, max_prec()), D1 = lay(erl_syntax:size_qualifier_body(Node), Ctxt1), @@ -1069,10 +1057,6 @@ make_fun_clause_head(N, P, Ctxt) -> beside(N, D) end. -make_rule_clause(N, P, G, B, Ctxt) -> - D = make_fun_clause_head(N, P, Ctxt), - append_rule_body(B, append_guard(G, D, Ctxt), Ctxt). - make_case_clause(P, G, B, Ctxt) -> append_clause_body(B, append_guard(G, P, Ctxt), Ctxt). @@ -1088,9 +1072,6 @@ make_if_clause(_P, G, B, Ctxt) -> append_clause_body(B, D, Ctxt) -> append_clause_body(B, D, floating(text(" ->")), Ctxt). -append_rule_body(B, D, Ctxt) -> - append_clause_body(B, D, floating(text(" :-")), Ctxt). - append_clause_body(B, D, S, Ctxt) -> sep([beside(D, S), nest(Ctxt#ctxt.break_indent, B)]). diff --git a/lib/syntax_tools/src/erl_syntax.erl b/lib/syntax_tools/src/erl_syntax.erl index 7ce9f231a1..3f2a3e05dd 100644 --- a/lib/syntax_tools/src/erl_syntax.erl +++ b/lib/syntax_tools/src/erl_syntax.erl @@ -270,10 +270,6 @@ record_index_expr/2, record_index_expr_field/1, record_index_expr_type/1, - rule/2, - rule_arity/1, - rule_clauses/1, - rule_name/1, size_qualifier/2, size_qualifier_argument/1, size_qualifier_body/1, @@ -471,19 +467,16 @@ %% <td>record_field</td> %% </tr><tr> %% <td>record_index_expr</td> -%% <td>rule</td> %% <td>size_qualifier</td> %% <td>string</td> -%% </tr><tr> %% <td>text</td> +%% </tr><tr> %% <td>try_expr</td> %% <td>tuple</td> %% <td>underscore</td> -%% </tr><tr> %% <td>variable</td> +%% </tr><tr> %% <td>warning_marker</td> -%% <td></td> -%% <td></td> %% </tr> %% </table></center> %% @@ -539,7 +532,6 @@ %% @see record_expr/2 %% @see record_field/2 %% @see record_index_expr/2 -%% @see rule/2 %% @see size_qualifier/2 %% @see string/1 %% @see text/1 @@ -608,7 +600,6 @@ type(Node) -> {record_field, _, _, _, _} -> record_access; {record_index, _, _, _} -> record_index_expr; {remote, _, _, _} -> module_qualifier; - {rule, _, _, _, _} -> rule; {'try', _, _, _, _, _} -> try_expr; {tuple, _, _} -> tuple; _ -> @@ -691,10 +682,9 @@ is_leaf(Node) -> %% <td>`comment'</td> %% <td>`error_marker'</td> %% <td>`eof_marker'</td> -%% <td>`form_list'</td> %% </tr><tr> +%% <td>`form_list'</td> %% <td>`function'</td> -%% <td>`rule'</td> %% <td>`warning_marker'</td> %% <td>`text'</td> %% </tr> @@ -707,7 +697,6 @@ is_leaf(Node) -> %% @see error_marker/1 %% @see form_list/1 %% @see function/2 -%% @see rule/2 %% @see warning_marker/1 -spec is_form(syntaxTree()) -> boolean(). @@ -720,7 +709,6 @@ is_form(Node) -> eof_marker -> true; error_marker -> true; form_list -> true; - rule -> true; warning_marker -> true; text -> true; _ -> false @@ -3478,7 +3466,6 @@ module_qualifier_body(Node) -> %% @see function_clauses/1 %% @see function_arity/1 %% @see is_form/1 -%% @see rule/2 %% Don't use the name 'function' for this record, to avoid confusion with %% the tuples on the form {function,Name,Arity} used by erl_parse. @@ -4773,117 +4760,6 @@ binary_comp_body(Node) -> %% ===================================================================== -%% @doc Creates an abstract Mnemosyne rule. If `Clauses' is -%% `[C1, ..., Cn]', the results represents -%% "<code><em>Name</em> <em>C1</em>; ...; <em>Name</em> -%% <em>Cn</em>.</code>". More exactly, if each `Ci' -%% represents "<code>(<em>Pi1</em>, ..., <em>Pim</em>) <em>Gi</em> -> -%% <em>Bi</em></code>", then the result represents -%% "<code><em>Name</em>(<em>P11</em>, ..., <em>P1m</em>) <em>G1</em> :- -%% <em>B1</em>; ...; <em>Name</em>(<em>Pn1</em>, ..., <em>Pnm</em>) -%% <em>Gn</em> :- <em>Bn</em>.</code>". Rules are source code forms. -%% -%% @see rule_name/1 -%% @see rule_clauses/1 -%% @see rule_arity/1 -%% @see is_form/1 -%% @see function/2 - --record(rule, {name :: syntaxTree(), clauses :: [syntaxTree()]}). - -%% type(Node) = rule -%% data(Node) = #rule{name :: Name, clauses :: Clauses} -%% -%% Name = syntaxTree() -%% Clauses = [syntaxTree()] -%% -%% (See `function' for notes on why the arity is not stored.) -%% -%% `erl_parse' representation: -%% -%% {rule, Pos, Name, Arity, Clauses} -%% -%% Name = atom() -%% Arity = integer() -%% Clauses = [Clause] \ [] -%% Clause = {clause, ...} -%% -%% where the number of patterns in each clause should be equal to -%% the integer `Arity'; see `clause' for documentation on -%% `erl_parse' clauses. - --spec rule(syntaxTree(), [syntaxTree()]) -> syntaxTree(). - -rule(Name, Clauses) -> - tree(rule, #rule{name = Name, clauses = Clauses}). - -revert_rule(Node) -> - Name = rule_name(Node), - Clauses = [revert_clause(C) || C <- rule_clauses(Node)], - Pos = get_pos(Node), - case type(Name) of - atom -> - A = rule_arity(Node), - {rule, Pos, concrete(Name), A, Clauses}; - _ -> - Node - end. - - -%% ===================================================================== -%% @doc Returns the name subtree of a `rule' node. -%% -%% @see rule/2 - --spec rule_name(syntaxTree()) -> syntaxTree(). - -rule_name(Node) -> - case unwrap(Node) of - {rule, Pos, Name, _, _} -> - set_pos(atom(Name), Pos); - Node1 -> - (data(Node1))#rule.name - end. - -%% ===================================================================== -%% @doc Returns the list of clause subtrees of a `rule' node. -%% -%% @see rule/2 - --spec rule_clauses(syntaxTree()) -> [syntaxTree()]. - -rule_clauses(Node) -> - case unwrap(Node) of - {rule, _, _, _, Clauses} -> - Clauses; - Node1 -> - (data(Node1))#rule.clauses - end. - -%% ===================================================================== -%% @doc Returns the arity of a `rule' node. The result is the -%% number of parameter patterns in the first clause of the rule; -%% subsequent clauses are ignored. -%% -%% An exception is thrown if `rule_clauses(Node)' returns -%% an empty list, or if the first element of that list is not a syntax -%% tree `C' of type `clause' such that -%% `clause_patterns(C)' is a nonempty list. -%% -%% @see rule/2 -%% @see rule_clauses/1 -%% @see clause/3 -%% @see clause_patterns/1 - --spec rule_arity(syntaxTree()) -> arity(). - -rule_arity(Node) -> - %% Note that this never accesses the arity field of - %% `erl_parse' rule nodes. - length(clause_patterns(hd(rule_clauses(Node)))). - - -%% ===================================================================== %% @doc Creates an abstract generator. The result represents %% "<code><em>Pattern</em> <- <em>Body</em></code>". %% @@ -6368,8 +6244,6 @@ revert_root(Node) -> revert_record_expr(Node); record_index_expr -> revert_record_index_expr(Node); - rule -> - revert_rule(Node); string -> revert_string(Node); try_expr -> @@ -6649,8 +6523,6 @@ subtrees(T) -> record_index_expr -> [[record_index_expr_type(T)], [record_index_expr_field(T)]]; - rule -> - [[rule_name(T)], rule_clauses(T)]; size_qualifier -> [[size_qualifier_body(T)], [size_qualifier_argument(T)]]; @@ -6753,7 +6625,6 @@ make_tree(record_field, [[N]]) -> record_field(N); make_tree(record_field, [[N], [E]]) -> record_field(N, E); make_tree(record_index_expr, [[T], [F]]) -> record_index_expr(T, F); -make_tree(rule, [[N], C]) -> rule(N, C); make_tree(size_qualifier, [[N], [A]]) -> size_qualifier(N, A); make_tree(try_expr, [B, C, H, A]) -> try_expr(B, C, H, A); make_tree(tuple, [E]) -> tuple(E). diff --git a/lib/syntax_tools/src/erl_syntax_lib.erl b/lib/syntax_tools/src/erl_syntax_lib.erl index d5f80e15f4..5b5b18d15b 100644 --- a/lib/syntax_tools/src/erl_syntax_lib.erl +++ b/lib/syntax_tools/src/erl_syntax_lib.erl @@ -35,8 +35,7 @@ analyze_function_name/1, analyze_implicit_fun/1, analyze_import_attribute/1, analyze_module_attribute/1, analyze_record_attribute/1, analyze_record_expr/1, - analyze_record_field/1, analyze_rule/1, - analyze_wild_attribute/1, annotate_bindings/1, + analyze_record_field/1, analyze_wild_attribute/1, annotate_bindings/1, annotate_bindings/2, fold/3, fold_subtrees/3, foldl_listlist/3, function_name_expansions/1, is_fail_expr/1, limit/2, limit/3, map/2, map_subtrees/2, mapfold/3, mapfold_subtrees/3, @@ -527,8 +526,6 @@ vann(Tree, Env) -> vann_try_expr(Tree, Env); function -> vann_function(Tree, Env); - rule -> - vann_rule(Tree, Env); fun_expr -> vann_fun_expr(Tree, Env); list_comp -> @@ -569,15 +566,6 @@ vann_function(Tree, Env) -> Bound = [], {ann_bindings(Tree1, Env, Bound, Free), Bound, Free}. -vann_rule(Tree, Env) -> - Cs = erl_syntax:rule_clauses(Tree), - {Cs1, {_, Free}} = vann_clauses(Cs, Env), - N = erl_syntax:rule_name(Tree), - {N1, _, _} = vann(N, Env), - Tree1 = rewrite(Tree, erl_syntax:rule(N1, Cs1)), - Bound = [], - {ann_bindings(Tree1, Env, Bound, Free), Bound, Free}. - vann_fun_expr(Tree, Env) -> Cs = erl_syntax:fun_expr_clauses(Tree), {Cs1, {_, Free}} = vann_clauses(Cs, Env), @@ -946,7 +934,7 @@ is_fail_expr(E) -> %% %% Forms = syntaxTree() | [syntaxTree()] %% Key = attributes | errors | exports | functions | imports -%% | module | records | rules | warnings +%% | module | records | warnings %% %% @doc Analyzes a sequence of "program forms". The given %% `Forms' may be a single syntax tree of type @@ -1047,16 +1035,6 @@ is_fail_expr(E) -> %% that each record name occurs at most once in the list. The %% order of listing is not defined.</dd> %% -%% <dt>`{rules, Rules}'</dt> -%% <dd><ul> -%% <li>`Rules = [{atom(), integer()}]'</li> -%% </ul> -%% `Rules' is a list of the names of the rules that are -%% defined in `Forms' (cf. -%% `analyze_rule/1'). We do not guarantee that each -%% name occurs at most once in the list. The order of listing is -%% not defined.</dd> -%% %% <dt>`{warnings, Warnings}'</dt> %% <dd><ul> %% <li>`Warnings = [term()]'</li> @@ -1074,12 +1052,11 @@ is_fail_expr(E) -> %% @see analyze_import_attribute/1 %% @see analyze_record_attribute/1 %% @see analyze_function/1 -%% @see analyze_rule/1 %% @see erl_syntax:error_marker_info/1 %% @see erl_syntax:warning_marker_info/1 -type key() :: 'attributes' | 'errors' | 'exports' | 'functions' | 'imports' - | 'module' | 'records' | 'rules' | 'warnings'. + | 'module' | 'records' | 'warnings'. -type info_pair() :: {key(), term()}. -spec analyze_forms(erl_syntax:forms()) -> [info_pair()]. @@ -1099,8 +1076,6 @@ collect_form(Node, Info) -> Info; {function, Name} -> finfo_add_function(Name, Info); - {rule, Name} -> - finfo_add_rule(Name, Info); {error_marker, Data} -> finfo_add_error(Data, Info); {warning_marker, Data} -> @@ -1136,8 +1111,7 @@ collect_attribute(_, {N, V}, Info) -> records = [] :: [{atom(), [{atom(), field_default()}]}], errors = [] :: [term()], warnings = [] :: [term()], - functions = [] :: [{atom(), arity()}], - rules = [] :: [{atom(), arity()}]}). + functions = [] :: [{atom(), arity()}]}). -type field_default() :: 'none' | erl_syntax:syntaxTree(). @@ -1183,9 +1157,6 @@ finfo_add_warning(R, Info) -> finfo_add_function(F, Info) -> Info#forms{functions = [F | Info#forms.functions]}. -finfo_add_rule(F, Info) -> - Info#forms{rules = [F | Info#forms.rules]}. - finfo_to_list(Info) -> [{Key, Value} || {Key, {value, Value}} <- @@ -1197,8 +1168,7 @@ finfo_to_list(Info) -> {records, list_value(Info#forms.records)}, {errors, list_value(Info#forms.errors)}, {warnings, list_value(Info#forms.warnings)}, - {functions, list_value(Info#forms.functions)}, - {rules, list_value(Info#forms.rules)} + {functions, list_value(Info#forms.functions)} ]]. list_value([]) -> @@ -1229,10 +1199,6 @@ list_value(List) -> %% %% <dd>where `Info = analyze_function(Node)'.</dd> %% -%% <dt>`{rule, Info}'</dt> -%% -%% <dd>where `Info = analyze_rule(Node)'.</dd> -%% %% <dt>`{warning_marker, Info}'</dt> %% %% <dd>where `Info = @@ -1245,7 +1211,6 @@ list_value(List) -> %% %% @see analyze_attribute/1 %% @see analyze_function/1 -%% @see analyze_rule/1 %% @see erl_syntax:is_form/1 %% @see erl_syntax:error_marker_info/1 %% @see erl_syntax:warning_marker_info/1 @@ -1258,8 +1223,6 @@ analyze_form(Node) -> {attribute, analyze_attribute(Node)}; function -> {function, analyze_function(Node)}; - rule -> - {rule, analyze_rule(Node)}; error_marker -> {error_marker, erl_syntax:error_marker_info(Node)}; warning_marker -> @@ -1829,8 +1792,6 @@ analyze_file_attribute(Node) -> %% The evaluation throws `syntax_error' if %% `Node' does not represent a well-formed function %% definition. -%% -%% @see analyze_rule/1 -spec analyze_function(erl_syntax:syntaxTree()) -> {atom(), arity()}. @@ -1851,37 +1812,6 @@ analyze_function(Node) -> %% ===================================================================== -%% @spec analyze_rule(Node::syntaxTree()) -> {atom(), integer()} -%% -%% @doc Returns the name and arity of a Mnemosyne rule. The result is a -%% pair `{Name, A}' if `Node' represents a rule -%% "`Name(<em>P_1</em>, ..., <em>P_A</em>) :- ...'". -%% -%% The evaluation throws `syntax_error' if -%% `Node' does not represent a well-formed Mnemosyne -%% rule. -%% -%% @see analyze_function/1 - --spec analyze_rule(erl_syntax:syntaxTree()) -> {atom(), arity()}. - -analyze_rule(Node) -> - case erl_syntax:type(Node) of - rule -> - N = erl_syntax:rule_name(Node), - case erl_syntax:type(N) of - atom -> - {erl_syntax:atom_value(N), - erl_syntax:rule_arity(Node)}; - _ -> - throw(syntax_error) - end; - _ -> - throw(syntax_error) - end. - - -%% ===================================================================== %% @spec analyze_implicit_fun(Node::syntaxTree()) -> FunctionName %% %% FunctionName = atom() | {atom(), integer()} diff --git a/lib/syntax_tools/src/erl_tidy.erl b/lib/syntax_tools/src/erl_tidy.erl index 38e0c2099b..db7f0939a3 100644 --- a/lib/syntax_tools/src/erl_tidy.erl +++ b/lib/syntax_tools/src/erl_tidy.erl @@ -792,16 +792,11 @@ keep_form(Form, Used, Opts) -> N = erl_syntax_lib:analyze_function(Form), case sets:is_element(N, Used) of false -> - report_removed_def("function", N, Form, Opts), - false; - true -> - true - end; - rule -> - N = erl_syntax_lib:analyze_rule(Form), - case sets:is_element(N, Used) of - false -> - report_removed_def("rule", N, Form, Opts), + {F, A} = N, + File = proplists:get_value(file, Opts, ""), + report({File, erl_syntax:get_pos(Form), + "removing unused function `~w/~w'."}, + [F, A], Opts), false; true -> true @@ -823,12 +818,6 @@ keep_form(Form, Used, Opts) -> true end. -report_removed_def(Type, {N, A}, Form, Opts) -> - File = proplists:get_value(file, Opts, ""), - report({File, erl_syntax:get_pos(Form), - "removing unused ~s `~w/~w'."}, - [Type, N, A], Opts). - collect_functions(Forms) -> lists:foldl( fun (F, {Names, Defs}) -> @@ -837,10 +826,6 @@ collect_functions(Forms) -> N = erl_syntax_lib:analyze_function(F), {sets:add_element(N, Names), dict:store(N, {F, []}, Defs)}; - rule -> - N = erl_syntax_lib:analyze_rule(F), - {sets:add_element(N, Names), - dict:store(N, {F, []}, Defs)}; _ -> {Names, Defs} end @@ -855,11 +840,6 @@ update_forms([F | Fs], Defs, Imports, Opts) -> {F1, Fs1} = dict:fetch(N, Defs), [F1 | lists:reverse(Fs1)] ++ update_forms(Fs, Defs, Imports, Opts); - rule -> - N = erl_syntax_lib:analyze_rule(F), - {F1, Fs1} = dict:fetch(N, Defs), - [F1 | lists:reverse(Fs1)] ++ update_forms(Fs, Defs, Imports, - Opts); attribute -> [update_attribute(F, Imports, Opts) | update_forms(Fs, Defs, Imports, Opts)]; diff --git a/lib/syntax_tools/src/igor.erl b/lib/syntax_tools/src/igor.erl index 0420508f2a..eac5af5540 100644 --- a/lib/syntax_tools/src/igor.erl +++ b/lib/syntax_tools/src/igor.erl @@ -1713,8 +1713,6 @@ transform(Tree, Env, St) -> transform_function(Tree, Env, St); implicit_fun -> transform_implicit_fun(Tree, Env, St); - rule -> - transform_rule(Tree, Env, St); record_expr -> transform_record(Tree, Env, St); record_index_expr -> @@ -1778,27 +1776,6 @@ renaming_note(Name) -> rename_atom(Node, Atom) -> rewrite(Node, erl_syntax:atom(Atom)). -%% Renaming Mnemosyne rules (just like function definitions) - -transform_rule(T, Env, St) -> - {T1, St1} = default_transform(T, Env, St), - F = erl_syntax_lib:analyze_rule(T1), - {V, Text} = case (Env#code.map)(F) of - F -> - %% Not renamed - {none, []}; - {Atom, _Arity} -> - %% Renamed - Cs = erl_syntax:rule_clauses(T1), - N = rename_atom( - erl_syntax:rule_name(T1), - Atom), - T2 = rewrite(T1, - erl_syntax:rule(N, Cs)), - {{value, T2}, renaming_note(Atom)} - end, - {maybe_modified(V, T1, 2, Text, Env), St1}. - %% Renaming "implicit fun" expressions (done quietly). transform_implicit_fun(T, Env, St) -> |