From b42453915e4c6aa1133e88c06a60dfbc5fe5e1f0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= <egil@erlang.org>
Date: Thu, 24 Oct 2013 21:17:11 +0200
Subject: edoc,syntax_tools: Teach Map understanding

---
 lib/syntax_tools/src/erl_syntax.erl | 36 +++++++++++++++++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

(limited to 'lib/syntax_tools/src')

diff --git a/lib/syntax_tools/src/erl_syntax.erl b/lib/syntax_tools/src/erl_syntax.erl
index 4f7f9e83ac..78a37445ed 100644
--- a/lib/syntax_tools/src/erl_syntax.erl
+++ b/lib/syntax_tools/src/erl_syntax.erl
@@ -582,6 +582,9 @@ type(Node) ->
 	{match, _, _, _} -> match_expr;
 	{op, _, _, _, _} -> infix_expr;
 	{op, _, _, _} -> prefix_expr;
+	{map,_,_} -> map;
+	{map_field_assoc,_,_,_} -> map_field_assoc;
+	{map_field_exact,_,_,_} -> map_field_exact;
 	{record, _, _, _, _} -> record_expr;
 	{record, _, _, _} -> record_expr;
 	{record_field, _, _, _, _} -> record_access;
@@ -1909,6 +1912,28 @@ atom_literal(Node) ->
     io_lib:write_atom(atom_value(Node)).
 
 
+%% =====================================================================
+
+map_elements(Node) ->
+    case unwrap(Node) of
+	{map, _, List} ->
+	    List;
+	Node1 ->
+	    data(Node1)
+    end.
+
+map_field_elements({_,_,K,V}) ->
+    [K,V].
+
+map(List) ->
+    tree(map, List).
+
+map_field_assoc(List) ->
+    tree(map_field_assoc, List).
+
+map_field_exact(List) ->
+    tree(map_field_exact, List).
+
 %% =====================================================================
 %% @doc Creates an abstract tuple. If `Elements' is
 %% `[X1, ..., Xn]', the result represents
@@ -6396,6 +6421,12 @@ subtrees(T) ->
 		     try_expr_clauses(T),
 		     try_expr_handlers(T),
 		     try_expr_after(T)];
+	        map ->
+		    [map_elements(T)];
+		map_field_assoc ->
+		    [map_field_elements(T)];
+		map_field_exact ->
+		    [map_field_elements(T)];
 		tuple ->
 		    [tuple_elements(T)]
 	    end
@@ -6491,7 +6522,10 @@ make_tree(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).
+make_tree(tuple, [E]) -> tuple(E);
+make_tree(map, [E]) -> map(E);
+make_tree(map_field_assoc, [E]) -> map_field_assoc(E);
+make_tree(map_field_exact, [E]) -> map_field_exact(E).
 
 
 %% =====================================================================
-- 
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