Allow CustomTarget's to be indexed

This allows a CustomTarget to be indexed, and the resulting indexed
value (a CustomTargetIndex type), to be used as a source in other
targets. This will confer a dependency on the original target, but only
inserts the source file returning by index the original target's
outputs. This can allow a CustomTarget that creates both a header and a
code file to have it's outputs split, for example.

Fixes #1470

1 files changed, 3 insertions, 1 deletions

diff --git a/mesonbuild/backend/vs2010backend.py b/mesonbuild/backend/vs2010backend.py
index 22c1779..cb8dad6 100644
--- a/mesonbuild/backend/vs2010backend.py
+++ b/mesonbuild/backend/vs2010backend.py
@@ -91,7 +91,7 @@ class Vs2010Backend(backends.Backend):
         source_target_dir = self.get_target_source_dir(target)
         down = self.target_to_build_root(target)
         for genlist in target.get_generated_sources():
-            if isinstance(genlist, build.CustomTarget):
+            if isinstance(genlist, (build.CustomTarget, build.CustomTargetIndex)):
                 for i in genlist.get_outputs():
                     # Path to the generated source from the current vcxproj dir via the build root
                     ipath = os.path.join(down, self.get_target_dir(genlist), i)
@@ -201,6 +201,8 @@ class Vs2010Backend(backends.Backend):
                 for gendep in target.get_generated_sources():
                     if isinstance(gendep, build.CustomTarget):
                         all_deps[gendep.get_id()] = gendep
+                    elif isinstance(gendep, build.CustomTargetIndex):
+                        all_deps[gendep.target.get_id()] = gendep.target
                     else:
                         gen_exe = gendep.generator.get_exe()
                         if isinstance(gen_exe, build.Executable):