Added custom_target[i] support for link_with and link_whole

mesonbuild/backend/backends.py

@@ -171,6 +171,8 @@ class Backend:
                 mlog.warning('custom_target {!r} has more than one output! '
                              'Using the first one.'.format(t.name))
             filename = t.get_outputs()[0]
+        elif isinstance(t, build.CustomTargetIndex):
+            filename = t.get_outputs()[0]
         else:
             assert(isinstance(t, build.BuildTarget))
             filename = t.get_filename()
@@ -214,7 +216,7 @@ class Backend:
             return os.path.join(self.get_target_dir(target), link_lib)
         elif isinstance(target, build.StaticLibrary):
             return os.path.join(self.get_target_dir(target), target.get_filename())
-        elif isinstance(target, build.CustomTarget):
+        elif isinstance(target, build.CustomTarget) or isinstance(target, build.CustomTargetIndex):
             if not target.is_linkable_target():
                 raise MesonException('Tried to link against custom target "%s", which is not linkable.' % target.name)
             return os.path.join(self.get_target_dir(target), target.get_filename())

mesonbuild/backend/vs2010backend.py

@@ -249,8 +249,14 @@ class Vs2010Backend(backends.Backend):
                         all_deps[d.get_id()] = d
             elif isinstance(target, build.BuildTarget):
                 for ldep in target.link_targets:
+                    if isinstance(ldep, build.CustomTargetIndex):
+                        all_deps[ldep.get_id()] = ldep.target
+                    else:
                         all_deps[ldep.get_id()] = ldep
                 for ldep in target.link_whole_targets:
+                    if isinstance(ldep, build.CustomTargetIndex):
+                        all_deps[ldep.get_id()] = ldep.target
+                    else:
                         all_deps[ldep.get_id()] = ldep
                 for obj_id, objdep in self.get_obj_target_deps(target.objects):
                     all_deps[obj_id] = objdep

mesonbuild/build.py

@@ -576,7 +576,7 @@ class BuildTarget(Target):
         if self.link_targets or self.link_whole_targets:
             extra = set()
             for t in itertools.chain(self.link_targets, self.link_whole_targets):
-                if isinstance(t, CustomTarget):
+                if isinstance(t, CustomTarget) or isinstance(t, CustomTargetIndex):
                     continue # We can't know anything about these.
                 for name, compiler in t.compilers.items():
                     if name in clink_langs:
@@ -1066,7 +1066,7 @@ You probably should put it in link_with instead.''')
 
     def link(self, target):
         for t in listify(target, unholder=True):
-            if not isinstance(t, Target):
+            if not isinstance(t, Target) and not isinstance(t, CustomTargetIndex):
                 raise InvalidArguments('{!r} is not a target.'.format(t))
             if not t.is_linkable_target():
                 raise InvalidArguments('Link target {!r} is not linkable.'.format(t))
@@ -1074,13 +1074,13 @@ You probably should put it in link_with instead.''')
                 msg = "Can't link non-PIC static library {!r} into shared library {!r}. ".format(t.name, self.name)
                 msg += "Use the 'pic' option to static_library to build with PIC."
                 raise InvalidArguments(msg)
-            if not isinstance(t, CustomTarget) and self.is_cross != t.is_cross:
+            if not isinstance(t, CustomTarget) and not isinstance(t, CustomTargetIndex) and self.is_cross != t.is_cross:
                 raise InvalidArguments('Tried to mix cross built and native libraries in target {!r}'.format(self.name))
             self.link_targets.append(t)
 
     def link_whole(self, target):
         for t in listify(target, unholder=True):
-            if isinstance(t, CustomTarget):
+            if isinstance(t, CustomTarget) or isinstance(t, CustomTargetIndex):
                 if not t.is_linkable_target():
                     raise InvalidArguments('Custom target {!r} is not linkable.'.format(t))
                 if not t.get_filename().endswith('.a'):
@@ -1091,7 +1091,7 @@ You probably should put it in link_with instead.''')
                 msg = "Can't link non-PIC static library {!r} into shared library {!r}. ".format(t.name, self.name)
                 msg += "Use the 'pic' option to static_library to build with PIC."
                 raise InvalidArguments(msg)
-            if not isinstance(t, CustomTarget) and self.is_cross != t.is_cross:
+            if not isinstance(t, CustomTarget) and not isinstance(t, CustomTargetIndex) and self.is_cross != t.is_cross:
                 raise InvalidArguments('Tried to mix cross built and native libraries in target {!r}'.format(self.name))
             self.link_whole_targets.append(t)
 
@@ -1168,7 +1168,7 @@ You probably should put it in link_with instead.''')
         # Check if any of the internal libraries this target links to were
         # written in this language
         for link_target in itertools.chain(self.link_targets, self.link_whole_targets):
-            if isinstance(link_target, CustomTarget):
+            if isinstance(link_target, CustomTarget) or isinstance(link_target, CustomTargetIndex):
                 continue
             for language in link_target.compilers:
                 if language not in langs:
@@ -2259,6 +2259,26 @@ class CustomTargetIndex:
     def get_subdir(self):
         return self.target.get_subdir()
 
+    def get_filename(self):
+        return self.output
+
+    def get_id(self):
+        return self.target.get_id()
+
+    def get_all_link_deps(self):
+        return []
+
+    def get_link_deps_mapping(self, prefix, environment):
+        return self.target.get_link_deps_mapping(prefix, environment)
+
+    def get_link_dep_subdirs(self):
+        return self.target.get_link_dep_subdirs()
+
+    def is_linkable_target(self):
+        suf = os.path.splitext(self.output)[-1]
+        if suf == '.a' or suf == '.dll' or suf == '.lib' or suf == '.so':
+            return True
+
 class ConfigureFile:
 
     def __init__(self, subdir, sourcename, targetname, configuration_data):