From 14c689313ce8e5247f279cc6d7352f04cd843217 Mon Sep 17 00:00:00 2001
From: Harald Eilertsen <haraldei@anduin.net>
Date: Sat, 27 Mar 2021 15:35:28 +0100
Subject: LV2/makeplugin: Get variable decls from plugin header.

---
 plugins/LV2/Template/Plugin.h             |  1 +
 plugins/LV2/lib/makeplugin/plugin_info.rb | 13 ++++++++++++-
 plugins/LV2/makeplugin                    |  1 +
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/plugins/LV2/Template/Plugin.h b/plugins/LV2/Template/Plugin.h
index 7569955..3d17d0f 100644
--- a/plugins/LV2/Template/Plugin.h
+++ b/plugins/LV2/Template/Plugin.h
@@ -22,6 +22,7 @@ private:
     /*
      * Members needed by the processing functions.
      */
+    @VARDECLS@
 };
 
 #endif
diff --git a/plugins/LV2/lib/makeplugin/plugin_info.rb b/plugins/LV2/lib/makeplugin/plugin_info.rb
index 59b7590..15de9d3 100644
--- a/plugins/LV2/lib/makeplugin/plugin_info.rb
+++ b/plugins/LV2/lib/makeplugin/plugin_info.rb
@@ -27,10 +27,12 @@ module MakePlugin
     attr_reader :use
     attr_reader :desc
     attr_reader :comment
+    attr_reader :var_decls
 
     def initialize(root, name)
       @name = name
       @ctrl_ports = []
+      @var_decls = []
       self.find_plugin_info(root)
       if @n_ctrl_ports != @ctrl_ports.length
         raise "Expected #{@n_ctrl_ports} but found #{@ctrl_ports.length}"
@@ -80,9 +82,18 @@ module MakePlugin
       header_file = File.join(root, '../WinVST', @name, "#{@name}.h")
 
       File.open(header_file) do |f|
+        vars = false
         f.each_line do |line|
-          if line =~ /kNumParameters\s*=\s*(\d+)/
+          if vars
+            if line =~ /^\};$/
+              vars = false
+            else
+              @var_decls << line.chomp
+            end
+          elsif line =~ /kNumParameters\s*=\s*(\d+)/
             @n_ctrl_ports = $1.to_i
+          elsif line =~ /std::set<[^>]+>\s*_canDo;/
+            vars = true
           end
         end
       end
diff --git a/plugins/LV2/makeplugin b/plugins/LV2/makeplugin
index 915117b..061d712 100755
--- a/plugins/LV2/makeplugin
+++ b/plugins/LV2/makeplugin
@@ -48,6 +48,7 @@ begin
       .gsub('@plugin@', pi.slug)
       .gsub('@NCtrlPorts@', pi.n_ctrl_ports.to_s)
       .gsub('@AssignParams@', make_param_assigns(pi.ctrl_ports))
+      .gsub('@VARDECLS@', pi.var_decls.join("\n"))
 
     fname = t.sub('Plugin', pi.name)
 
-- 
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