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-rw-r--r--lib/syntax_tools/src/erl_prettypr.erl26
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/syntax_tools/src/erl_prettypr.erl b/lib/syntax_tools/src/erl_prettypr.erl
index 1ffcf31134..4d6e88f58b 100644
--- a/lib/syntax_tools/src/erl_prettypr.erl
+++ b/lib/syntax_tools/src/erl_prettypr.erl
@@ -892,6 +892,32 @@ lay_2(Node, Ctxt) ->
beside(floating(text(".")), D2)),
maybe_parentheses(D3, Prec, Ctxt);
+ map_expr ->
+ {PrecL, Prec, _} = inop_prec('#'),
+ Ctxt1 = reset_prec(Ctxt),
+ D1 = par(seq(erl_syntax:map_expr_fields(Node),
+ floating(text(",")), Ctxt1, fun lay/2)),
+ D2 = beside(text("#{"), beside(D1, floating(text("}")))),
+ D3 = case erl_syntax:map_expr_argument(Node) of
+ none ->
+ D2;
+ A ->
+ beside(lay(A, set_prec(Ctxt, PrecL)), D2)
+ end,
+ maybe_parentheses(D3, Prec, Ctxt);
+
+ map_field_assoc ->
+ Ctxt1 = reset_prec(Ctxt),
+ D1 = lay(erl_syntax:map_field_assoc_name(Node), Ctxt1),
+ D2 = lay(erl_syntax:map_field_assoc_value(Node), Ctxt1),
+ par([D1, floating(text("=>")), D2], Ctxt1#ctxt.break_indent);
+
+ map_field_exact ->
+ Ctxt1 = reset_prec(Ctxt),
+ D1 = lay(erl_syntax:map_field_exact_name(Node), Ctxt1),
+ 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'.