diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/syntax_tools/src/erl_prettypr.erl | 14 | ||||
| -rw-r--r-- | lib/syntax_tools/src/erl_syntax.erl | 44 |
2 files changed, 50 insertions, 8 deletions
diff --git a/lib/syntax_tools/src/erl_prettypr.erl b/lib/syntax_tools/src/erl_prettypr.erl index 40ddd2b22a..f03f326278 100644 --- a/lib/syntax_tools/src/erl_prettypr.erl +++ b/lib/syntax_tools/src/erl_prettypr.erl @@ -774,9 +774,17 @@ lay_2(Node, Ctxt) -> class_qualifier -> Ctxt1 = set_prec(Ctxt, max_prec()), D1 = lay(erl_syntax:class_qualifier_argument(Node), Ctxt1), - D2 = lay(erl_syntax:class_qualifier_body(Node), Ctxt1), - beside(D1, beside(text(":"), D2)); - + D2 = lay(erl_syntax:class_qualifier_body(Node), Ctxt1), + Stacktrace = erl_syntax:class_qualifier_stacktrace(Node), + case erl_syntax:variable_name(Stacktrace) of + '_' -> + beside(D1, beside(text(":"), D2)); + _ -> + D3 = lay(erl_syntax:class_qualifier_stacktrace(Node), + Ctxt1), + beside(D1, beside(beside(text(":"), D2), + beside(text(":"), D3))) + end; comment -> D = stack_comment_lines( erl_syntax:comment_text(Node)), diff --git a/lib/syntax_tools/src/erl_syntax.erl b/lib/syntax_tools/src/erl_syntax.erl index 9b2b503762..ed552b73df 100644 --- a/lib/syntax_tools/src/erl_syntax.erl +++ b/lib/syntax_tools/src/erl_syntax.erl @@ -342,8 +342,10 @@ typed_record_field_body/1, typed_record_field_type/1, class_qualifier/2, + class_qualifier/3, class_qualifier_argument/1, class_qualifier_body/1, + class_qualifier_stacktrace/1, tuple/1, tuple_elements/1, tuple_size/1, @@ -3884,7 +3886,7 @@ fold_try_clause({clause, Pos, [P], Guard, Body}) -> class_qualifier -> {tuple, Pos, [class_qualifier_argument(P), class_qualifier_body(P), - {var, Pos, '_'}]}; + class_qualifier_stacktrace(P)]}; _ -> {tuple, Pos, [{atom, Pos, throw}, P, {var, Pos, '_'}]} end, @@ -3896,9 +3898,9 @@ unfold_try_clauses(Cs) -> unfold_try_clause({clause, Pos, [{tuple, _, [{atom, _, throw}, V, _]}], Guard, Body}) -> {clause, Pos, [V], Guard, Body}; -unfold_try_clause({clause, Pos, [{tuple, _, [C, V, _]}], +unfold_try_clause({clause, Pos, [{tuple, _, [C, V, Stacktrace]}], Guard, Body}) -> - {clause, Pos, [class_qualifier(C, V)], Guard, Body}. + {clause, Pos, [class_qualifier(C, V, Stacktrace)], Guard, Body}. %% ===================================================================== @@ -6725,9 +6727,12 @@ try_expr_after(Node) -> %% %% @see class_qualifier_argument/1 %% @see class_qualifier_body/1 +%% @see class_qualifier_stacktrace/1 %% @see try_expr/4 --record(class_qualifier, {class :: syntaxTree(), body :: syntaxTree()}). +-record(class_qualifier, {class :: syntaxTree(), + body :: syntaxTree(), + stacktrace :: syntaxTree()}). %% type(Node) = class_qualifier %% data(Node) = #class_qualifier{class :: Class, body :: Body} @@ -6737,8 +6742,27 @@ try_expr_after(Node) -> -spec class_qualifier(syntaxTree(), syntaxTree()) -> syntaxTree(). class_qualifier(Class, Body) -> + Underscore = {var, get_pos(Body), '_'}, tree(class_qualifier, - #class_qualifier{class = Class, body = Body}). + #class_qualifier{class = Class, body = Body, + stacktrace = Underscore}). + +%% ===================================================================== +%% @doc Creates an abstract class qualifier. The result represents +%% "<code><em>Class</em>:<em>Body</em>:<em>Stacktrace</em></code>". +%% +%% @see class_qualifier_argument/1 +%% @see class_qualifier_body/1 +%% @see try_expr/4 + +-spec class_qualifier(syntaxTree(), syntaxTree(), syntaxTree()) -> + syntaxTree(). + +class_qualifier(Class, Body, Stacktrace) -> + tree(class_qualifier, + #class_qualifier{class = Class, + body = Body, + stacktrace = Stacktrace}). %% ===================================================================== @@ -6763,6 +6787,16 @@ class_qualifier_argument(Node) -> class_qualifier_body(Node) -> (data(Node))#class_qualifier.body. +%% ===================================================================== +%% @doc Returns the stacktrace subtree of a `class_qualifier' node. +%% +%% @see class_qualifier/2 + +-spec class_qualifier_stacktrace(syntaxTree()) -> syntaxTree(). + +class_qualifier_stacktrace(Node) -> + (data(Node))#class_qualifier.stacktrace. + %% ===================================================================== %% @doc Creates an abstract "implicit fun" expression. If |