java: implement java linking

1 files changed, 10 insertions, 1 deletions

diff --git a/mesonbuild/build.py b/mesonbuild/build.py
index 7d071e0..dc14326 100644
--- a/mesonbuild/build.py
+++ b/mesonbuild/build.py
@@ -1911,6 +1911,9 @@ class Jar(BuildTarget):
         for s in self.sources:
             if not s.endswith('.java'):
                 raise InvalidArguments('Jar source %s is not a java file.' % s)
+        for t in self.link_targets:
+            if not isinstance(t, Jar):
+                raise InvalidArguments('Link target %s is not a jar target.' % t)
         self.filename = self.name + '.jar'
         self.outputs = [self.filename]
         self.java_args = kwargs.get('java_args', [])
@@ -1928,6 +1931,13 @@ class Jar(BuildTarget):
         # All jar targets are installable.
         pass
 
+    def is_linkable_target(self):
+        return True
+
+    def get_classpath_args(self):
+        cp_paths = [os.path.join(l.get_subdir(), l.get_filename()) for l in self.link_targets]
+        return ['-cp', os.pathsep.join(cp_paths)]
+
 class CustomTargetIndex:
 
     """A special opaque object returned by indexing a CustomTarget. This object
@@ -1950,7 +1960,6 @@ class CustomTargetIndex:
     def get_subdir(self):
         return self.target.get_subdir()
 
-
 class ConfigureFile:
 
     def __init__(self, subdir, sourcename, targetname, configuration_data):