From d73c83aa63929cb07cbc62d3668b4fa590ed6c64 Mon Sep 17 00:00:00 2001
From: James Westman <james@jwestman.net>
Date: Mon, 28 Mar 2022 14:34:27 -0500
Subject: [PATCH] decompiler: Allow and ignore <placeholder/>

Some existing files contain <placeholder/> tags, which should be
permitted but ignored.
---
 blueprintcompiler/decompiler.py   | 5 +++++
 tests/samples/placeholder.ui      | 9 +++++++++
 tests/samples/placeholder_dec.blp | 4 ++++
 tests/test_samples.py             | 1 +
 4 files changed, 19 insertions(+)
 create mode 100644 tests/samples/placeholder.ui
 create mode 100644 tests/samples/placeholder_dec.blp

diff --git a/blueprintcompiler/decompiler.py b/blueprintcompiler/decompiler.py
index 60a066c..623adb5 100644
--- a/blueprintcompiler/decompiler.py
+++ b/blueprintcompiler/decompiler.py
@@ -238,6 +238,11 @@ def decompile_requires(ctx, gir, lib=None, version=None):
     return gir
 
 
+@decompiler("placeholder")
+def decompile_placeholder(ctx, gir):
+    pass
+
+
 @decompiler("property", cdata=True)
 def decompile_property(ctx, gir, name, cdata, bind_source=None, bind_property=None, bind_flags=None, translatable="false", comments=None, context=None):
     name = name.replace("_", "-")
diff --git a/tests/samples/placeholder.ui b/tests/samples/placeholder.ui
new file mode 100644
index 0000000..82d4360
--- /dev/null
+++ b/tests/samples/placeholder.ui
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk" version="4.0"/>
+  <object class="GtkBox">
+    <child>
+      <placeholder/>
+    </child>
+  </object>
+</interface>
diff --git a/tests/samples/placeholder_dec.blp b/tests/samples/placeholder_dec.blp
new file mode 100644
index 0000000..46afd23
--- /dev/null
+++ b/tests/samples/placeholder_dec.blp
@@ -0,0 +1,4 @@
+using Gtk 4.0;
+
+Box {
+}
diff --git a/tests/test_samples.py b/tests/test_samples.py
index 908cc27..38db1b9 100644
--- a/tests/test_samples.py
+++ b/tests/test_samples.py
@@ -207,6 +207,7 @@ class TestSamples(unittest.TestCase):
         self.assert_decompile("layout_dec")
         self.assert_decompile("menu_dec")
         self.assert_decompile("property")
+        self.assert_decompile("placeholder_dec")
         self.assert_decompile("signal")
         self.assert_decompile("strings")
         self.assert_decompile("style_dec")