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File 2513-stdlib-Add-support-for-SSA-check-clauses-in-epp.patch of Package erlang (Revision 6af34d10e5fc1c974d15399d1aade82a)

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From 2c78dbc90e799b71473a2c8de43fbcb1daff405b Mon Sep 17 00:00:00 2001
From: Frej Drejhammar <frej.drejhammar@gmail.com>
Date: Wed, 9 Nov 2022 12:27:11 +0100
Subject: [PATCH 03/13] stdlib: Add support for SSA check clauses in epp

When epp:open/3 and parse_file/3 are given the option `{parse_checks,
true}`, epp will parse and return ssa check clauses.
---
 lib/stdlib/doc/src/epp.xml | 10 +++++++++-
 lib/stdlib/src/epp.erl     | 14 +++++++++++---
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/lib/stdlib/doc/src/epp.xml b/lib/stdlib/doc/src/epp.xml
index 11130b0065..45c0f241d2 100644
--- a/lib/stdlib/doc/src/epp.xml
+++ b/lib/stdlib/doc/src/epp.xml
@@ -4,7 +4,7 @@
 <erlref>
 <header>
 <copyright>
- <year>1996</year><year>2022</year>
+ <year>1996</year><year>2023</year>
 <holder>Ericsson AB. All Rights Reserved.</holder>
 </copyright>
 <legalnotice>
@@ -142,6 +142,10 @@
 The option <c>location</c> is forwarded
 to the Erlang token scanner, see
 <seemfa marker="erl_scan#tokens/3"><c>erl_scan:tokens/3,4</c></seemfa>.
+ The <c>{compiler_internal,term()}</c> option is forwarded
+ to the Erlang token scanner, see
+ <seeerl marker="erl_scan#compiler_interal">
+ <c>{compiler_internal,term()}</c></seeerl>.
 </desc>
 </func>
 
@@ -193,6 +197,10 @@
 The option <c>location</c> is forwarded
 to the Erlang token scanner, see
 <seemfa marker="erl_scan#tokens/3"><c>erl_scan:tokens/3,4</c></seemfa>.
+ The <c>{compiler_internal,term()}</c> option is forwarded
+ to the Erlang token scanner, see
+ <seeerl marker="erl_scan#compiler_interal">
+ <c>{compiler_internal,term()}</c></seeerl>.
 </desc>
 </func>
 
diff --git a/lib/stdlib/src/epp.erl b/lib/stdlib/src/epp.erl
index bdb0bc64a2..5a14d12b3c 100644
--- a/lib/stdlib/src/epp.erl
+++ b/lib/stdlib/src/epp.erl
@@ -125,7 +125,8 @@ open(Name, Path, Pdm) ->
 		 {'name',FileName :: file:name()} |
 		 {'location',StartLocation :: erl_anno:location()} |
 		 {'fd',FileDescriptor :: file:io_device()} |
-		 'extra'],
+		 'extra' |
+ {'compiler_internal', [term()]}],
 Epp :: epp_handle(),
 Extra :: [{'encoding', source_encoding() | 'none'}],
 ErrorDescriptor :: term().
@@ -309,7 +310,8 @@ parse_file(Ifile, Path, Predefs) ->
 		 {'location',StartLocation :: erl_anno:location()} |
 {'reserved_word_fun', Fun :: fun((atom()) -> boolean())} |
 {'features', [Feature :: atom()]} |
-		 'extra'],
+		 'extra' |
+ {'compiler_internal', [term()]}],
 Form :: erl_parse:abstract_form()
 | {'error', ErrorInfo}
 | {'eof',Location},
@@ -608,6 +610,8 @@ init_server(Pid, FileName, Options, St0) ->
 SourceName = proplists:get_value(source_name, Options, FileName),
 Pdm = proplists:get_value(macros, Options, []),
 Features = proplists:get_value(features, Options, []),
+ Internal = proplists:get_value(compiler_internal, Options, []),
+ ParseChecks = proplists:get_bool(ssa_checks, Internal),
 Ms0 = predef_macros(SourceName, Features),
 case user_predef(Pdm, Ms0) of
 	{ok,Ms1} ->
@@ -631,7 +635,11 @@ init_server(Pid, FileName, Options, St0) ->
 			 default_encoding=DefEncoding,
 erl_scan_opts =
 [{text_fun, keep_ftr_keywords()},
- {reserved_word_fun, ResWordFun}],
+ {reserved_word_fun, ResWordFun}]
+ ++ if ParseChecks ->
+ [{compiler_internal,[ssa_checks]}];
+ true -> []
+ end,
 features = Features,
 else_reserved = ResWordFun('else'),
 deterministic = Deterministic},
-- 
2.35.3

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File 2513-stdlib-Add-support-for-SSA-check-clauses-in-epp.patch of Package erlang (Revision 6af34d10e5fc1c974d15399d1aade82a)

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