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-rw-r--r--lib/syntax_tools/src/erl_comment_scan.erl1
-rw-r--r--lib/syntax_tools/src/erl_syntax.erl1
-rw-r--r--lib/syntax_tools/src/erl_syntax_lib.erl2
-rw-r--r--lib/syntax_tools/src/prettypr.erl2
4 files changed, 6 insertions, 0 deletions
diff --git a/lib/syntax_tools/src/erl_comment_scan.erl b/lib/syntax_tools/src/erl_comment_scan.erl
index e2c6976a2b..108ab3bffd 100644
--- a/lib/syntax_tools/src/erl_comment_scan.erl
+++ b/lib/syntax_tools/src/erl_comment_scan.erl
@@ -26,6 +26,7 @@
-export([file/1, join_lines/1, scan_lines/1, string/1]).
+-export_type([comment/0]).
%% =====================================================================
diff --git a/lib/syntax_tools/src/erl_syntax.erl b/lib/syntax_tools/src/erl_syntax.erl
index 9a2967d550..a40bf83c5a 100644
--- a/lib/syntax_tools/src/erl_syntax.erl
+++ b/lib/syntax_tools/src/erl_syntax.erl
@@ -309,6 +309,7 @@
data/1,
is_tree/1]).
+-export_type([forms/0, syntaxTree/0, syntaxTreeAttributes/0]).
%% =====================================================================
%% IMPLEMENTATION NOTES:
diff --git a/lib/syntax_tools/src/erl_syntax_lib.erl b/lib/syntax_tools/src/erl_syntax_lib.erl
index 1c0367c3d9..4808971a59 100644
--- a/lib/syntax_tools/src/erl_syntax_lib.erl
+++ b/lib/syntax_tools/src/erl_syntax_lib.erl
@@ -46,6 +46,8 @@
new_variable_names/2, new_variable_names/3, strip_comments/1,
to_comment/1, to_comment/2, to_comment/3, variables/1]).
+-export_type([info_pair/0]).
+
%% =====================================================================
-type ordset(X) :: [X]. % XXX: TAKE ME OUT
diff --git a/lib/syntax_tools/src/prettypr.erl b/lib/syntax_tools/src/prettypr.erl
index 1868f63e54..c13fa30998 100644
--- a/lib/syntax_tools/src/prettypr.erl
+++ b/lib/syntax_tools/src/prettypr.erl
@@ -48,6 +48,8 @@
nest/2, par/1, par/2, sep/1, text/1, null_text/1, text_par/1,
text_par/2]).
+-export_type([document/0]).
+
%% ---------------------------------------------------------------------
-type deep_string() :: [char() | deep_string()].