Allow building deprecated modules without deprecation warnings

The compiler issues a deprecation warning only on a "non-deprecated" -> "deprecated" transition. As such, building or testing Dub packages which have deprecated modules when a dub_test_root.d file needs to be generated will cause deprecation warnings. This in turn makes it impossible to use `buildRequirements "disallowDeprecations"` in this situation. Fix this by simply making the auto-generated root module (dub_test_root) deprecated. As it is the compiler's entry point, the module itself will not cause a deprecation warning, and it importing deprecating modules will not cause deprecation warnings (as there is no longer a transition of deprecation state).
dlang · Jan 11, 2024 · 5ee7d6b · 5ee7d6b
1 parent ee0fe9c
commit 5ee7d6b
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diff --git a/source/dub/project.d b/source/dub/project.d
@@ -1970,6 +1970,7 @@ public class SelectedVersions {
 
 /// The template code from which the test runner is generated
 private immutable TestRunnerTemplate = q{
+deprecated // allow silently using deprecated symbols
 module dub_test_root;
 
 import std.typetuple;

diff --git a/test/issue2650-deprecated-modules/.no_build b/test/issue2650-deprecated-modules/.no_build
diff --git a/test/issue2650-deprecated-modules/.no_run b/test/issue2650-deprecated-modules/.no_run
diff --git a/test/issue2650-deprecated-modules/dub.sdl b/test/issue2650-deprecated-modules/dub.sdl
@@ -0,0 +1,3 @@
+name "issue2650"
+targetType "sourceLibrary"
+buildRequirements "disallowDeprecations"
diff --git a/test/issue2650-deprecated-modules/source/test.d b/test/issue2650-deprecated-modules/source/test.d
@@ -0,0 +1 @@
+deprecated module test;