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-rw-r--r--lib/edoc/src/edoc_extract.erl11
-rw-r--r--lib/syntax_tools/src/erl_prettypr.erl33
-rw-r--r--lib/syntax_tools/src/erl_syntax.erl208
-rw-r--r--lib/syntax_tools/src/erl_syntax_lib.erl106
-rw-r--r--lib/syntax_tools/src/erl_tidy.erl30
-rw-r--r--lib/syntax_tools/src/igor.erl23
6 files changed, 43 insertions, 368 deletions
diff --git a/lib/edoc/src/edoc_extract.erl b/lib/edoc/src/edoc_extract.erl
index a2a1a6b718..6d34de3a85 100644
--- a/lib/edoc/src/edoc_extract.erl
+++ b/lib/edoc/src/edoc_extract.erl
@@ -351,8 +351,6 @@ preprocess_forms_2(F, Fs) ->
[F | preprocess_forms_1(Fs)];
{function, _} ->
[F | preprocess_forms_1(Fs)];
- {rule, _} ->
- [F | preprocess_forms_1(Fs)];
{attribute, {module, _}} ->
[F | preprocess_forms_1(Fs)];
text ->
@@ -390,15 +388,6 @@ collect([F | Fs], Cs, Ss, Ts, As, Header, Mod) ->
export = Export,
data = {comment_text(Cs),Ss,Ts}} | As],
Header, Mod);
- {rule, Name} ->
- L = erl_syntax:get_pos(F),
- Export = ordsets:is_element(Name, Mod#module.exports),
- Args = parameters(erl_syntax:rule_clauses(F)),
- collect(Fs, [], [], [],
- [#entry{name = Name, args = Args, line = L,
- export = Export,
- data = {comment_text(Cs),Ss,Ts}} | As],
- Header, Mod);
{attribute, {module, _}} when Header =:= undefined ->
L = erl_syntax:get_pos(F),
collect(Fs, [], [], [], As,
diff --git a/lib/syntax_tools/src/erl_prettypr.erl b/lib/syntax_tools/src/erl_prettypr.erl
index 877675772f..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.
@@ -851,14 +848,10 @@ lay_2(Node, Ctxt) ->
floating(text(".")),
lay(erl_syntax:record_access_field(Node),
set_prec(Ctxt, PrecR))),
- D3 = case erl_syntax:record_access_type(Node) of
- none ->
- D2;
- T ->
- beside(beside(floating(text("#")),
- lay(T, reset_prec(Ctxt))),
- D2)
- end,
+ T = erl_syntax:record_access_type(Node),
+ D3 = beside(beside(floating(text("#")),
+ lay(T, reset_prec(Ctxt))),
+ D2),
maybe_parentheses(beside(D1, D3), Prec, Ctxt);
record_expr ->
@@ -926,15 +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),
@@ -1073,10 +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).
@@ -1092,9 +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 de271d7f2f..3f2a3e05dd 100644
--- a/lib/syntax_tools/src/erl_syntax.erl
+++ b/lib/syntax_tools/src/erl_syntax.erl
@@ -254,7 +254,6 @@
receive_expr_action/1,
receive_expr_clauses/1,
receive_expr_timeout/1,
- record_access/2,
record_access/3,
record_access_argument/1,
record_access_field/1,
@@ -271,10 +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,
@@ -472,19 +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>
%%
@@ -540,7 +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
@@ -607,10 +598,8 @@ type(Node) ->
{record, _, _, _, _} -> record_expr;
{record, _, _, _} -> record_expr;
{record_field, _, _, _, _} -> record_access;
- {record_field, _, _, _} -> record_access;
{record_index, _, _, _} -> record_index_expr;
{remote, _, _, _} -> module_qualifier;
- {rule, _, _, _, _} -> rule;
{'try', _, _, _, _, _} -> try_expr;
{tuple, _, _} -> tuple;
_ ->
@@ -693,10 +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>
@@ -709,7 +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().
@@ -722,7 +709,6 @@ is_form(Node) ->
eof_marker -> true;
error_marker -> true;
form_list -> true;
- rule -> true;
warning_marker -> true;
text -> true;
_ -> false
@@ -3480,7 +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.
@@ -4310,49 +4295,32 @@ record_index_expr_field(Node) ->
%% =====================================================================
-%% @equiv record_access(Argument, none, Field)
-
--spec record_access(syntaxTree(), syntaxTree()) -> syntaxTree().
-
-record_access(Argument, Field) ->
- record_access(Argument, none, Field).
-
-
-%% =====================================================================
-%% @doc Creates an abstract record field access expression. If
-%% `Type' is not `none', the result represents
-%% "<code><em>Argument</em>#<em>Type</em>.<em>Field</em></code>".
-%%
-%% If `Type' is `none', the result represents
-%% "<code><em>Argument</em>.<em>Field</em></code>". This is a special
-%% form only allowed within Mnemosyne queries.
+%% @doc Creates an abstract record field access expression. The result
+%% represents "<code><em>Argument</em>#<em>Type</em>.<em>Field</em></code>".
%%
-%% @see record_access/2
%% @see record_access_argument/1
%% @see record_access_type/1
%% @see record_access_field/1
%% @see record_expr/3
-record(record_access, {argument :: syntaxTree(),
- type :: 'none' | syntaxTree(),
+ type :: syntaxTree(),
field :: syntaxTree()}).
%% type(Node) = record_access
%% data(Node) = #record_access{argument :: Argument, type :: Type,
%% field :: Field}
%%
-%% Argument = Field = syntaxTree()
-%% Type = none | syntaxTree()
+%% Argument = Type = Field = syntaxTree()
%%
%% `erl_parse' representation:
%%
%% {record_field, Pos, Argument, Type, Field}
-%% {record_field, Pos, Argument, Field}
%%
%% Argument = Field = erl_parse()
%% Type = atom()
--spec record_access(syntaxTree(), 'none' | syntaxTree(), syntaxTree()) ->
+-spec record_access(syntaxTree(), syntaxTree(), syntaxTree()) ->
syntaxTree().
record_access(Argument, Type, Field) ->
@@ -4365,16 +4333,11 @@ revert_record_access(Node) ->
Argument = record_access_argument(Node),
Type = record_access_type(Node),
Field = record_access_field(Node),
- if Type =:= none ->
- {record_field, Pos, Argument, Field};
- true ->
- case type(Type) of
- atom ->
- {record_field, Pos,
- Argument, concrete(Type), Field};
- _ ->
- Node
- end
+ case type(Type) of
+ atom ->
+ {record_field, Pos, Argument, concrete(Type), Field};
+ _ ->
+ Node
end.
@@ -4387,8 +4350,6 @@ revert_record_access(Node) ->
record_access_argument(Node) ->
case unwrap(Node) of
- {record_field, _, Argument, _} ->
- Argument;
{record_field, _, Argument, _, _} ->
Argument;
Node1 ->
@@ -4397,21 +4358,14 @@ record_access_argument(Node) ->
%% =====================================================================
-%% @doc Returns the type subtree of a `record_access' node,
-%% if any. If `Node' represents
-%% "<code><em>Argument</em>.<em>Field</em></code>", `none'
-%% is returned, otherwise if `Node' represents
-%% "<code><em>Argument</em>#<em>Type</em>.<em>Field</em></code>",
-%% `Type' is returned.
+%% @doc Returns the type subtree of a `record_access' node.
%%
%% @see record_access/3
--spec record_access_type(syntaxTree()) -> 'none' | syntaxTree().
+-spec record_access_type(syntaxTree()) -> syntaxTree().
record_access_type(Node) ->
case unwrap(Node) of
- {record_field, _, _, _} ->
- none;
{record_field, Pos, _, Type, _} ->
set_pos(atom(Type), Pos);
Node1 ->
@@ -4428,8 +4382,6 @@ record_access_type(Node) ->
record_access_field(Node) ->
case unwrap(Node) of
- {record_field, _, _, Field} ->
- Field;
{record_field, _, _, _, Field} ->
Field;
Node1 ->
@@ -4808,117 +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> &lt;- <em>Body</em></code>".
%%
@@ -6403,8 +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 ->
@@ -6661,15 +6500,9 @@ subtrees(T) ->
receive_expr_action(T)]
end;
record_access ->
- case record_access_type(T) of
- none ->
- [[record_access_argument(T)],
- [record_access_field(T)]];
- R ->
- [[record_access_argument(T)],
- [R],
- [record_access_field(T)]]
- end;
+ [[record_access_argument(T)],
+ [record_access_type(T)],
+ [record_access_field(T)]];
record_expr ->
case record_expr_argument(T) of
none ->
@@ -6690,8 +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)]];
@@ -6786,8 +6617,6 @@ make_tree(parentheses, [[E]]) -> parentheses(E);
make_tree(prefix_expr, [[F], [A]]) -> prefix_expr(F, A);
make_tree(receive_expr, [C]) -> receive_expr(C);
make_tree(receive_expr, [C, [E], A]) -> receive_expr(C, E, A);
-make_tree(record_access, [[E], [F]]) ->
- record_access(E, F);
make_tree(record_access, [[E], [T], [F]]) ->
record_access(E, T, F);
make_tree(record_expr, [[T], F]) -> record_expr(T, F);
@@ -6796,7 +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 2f0488abec..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 ->
@@ -1669,7 +1632,7 @@ analyze_record_attribute_tuple(Node) ->
%% <dt>`record_expr':</dt>
%% <dd>`{atom(), [{atom(), Value}]}'</dd>
%% <dt>`record_access':</dt>
-%% <dd>`{atom(), atom()} | atom()'</dd>
+%% <dd>`{atom(), atom()}'</dd>
%% <dt>`record_index_expr':</dt>
%% <dd>`{atom(), atom()}'</dd>
%% </dl>
@@ -1679,9 +1642,7 @@ analyze_record_attribute_tuple(Node) ->
%% listed in the order they appear. (See
%% `analyze_record_field/1' for details on the field
%% descriptors). For a `record_access' node,
-%% `Info' represents the record name and the field name (or
-%% if the record name is not included, only the field name; this is
-%% allowed only in Mnemosyne-query syntax). For a
+%% `Info' represents the record name and the field name. For a
%% `record_index_expr' node, `Info' represents the
%% record name and the name field name.
%%
@@ -1713,18 +1674,14 @@ analyze_record_expr(Node) ->
F = erl_syntax:record_access_field(Node),
case erl_syntax:type(F) of
atom ->
- case erl_syntax:record_access_type(Node) of
- none ->
- {record_access, erl_syntax:atom_value(F)};
- A ->
- case erl_syntax:type(A) of
- atom ->
- {record_access,
- {erl_syntax:atom_value(A),
- erl_syntax:atom_value(F)}};
- _ ->
- throw(syntax_error)
- end
+ A = erl_syntax:record_access_type(Node),
+ case erl_syntax:type(A) of
+ atom ->
+ {record_access,
+ {erl_syntax:atom_value(A),
+ erl_syntax:atom_value(F)}};
+ _ ->
+ throw(syntax_error)
end;
_ ->
throw(syntax_error)
@@ -1835,8 +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()}.
@@ -1857,37 +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) ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 13:28:58 +0000