Can create top level targets that have the same name but different type.

build.py

@@ -585,6 +585,8 @@ class Executable(BuildTarget):
         else:
             self.filename = self.name
 
+    def type_suffix(self):
+        return "@exe"
 
 class StaticLibrary(BuildTarget):
     def __init__(self, name, subdir, is_cross, sources, objects, environment, kwargs):
@@ -601,6 +603,9 @@ class StaticLibrary(BuildTarget):
     def get_osx_filename(self):
         return self.get_filename()
 
+    def type_suffix(self):
+        return "@sta"
+
 class SharedLibrary(BuildTarget):
     def __init__(self, name, subdir, is_cross, sources, objects, environment, kwargs):
         self.version = None
@@ -666,6 +671,9 @@ class SharedLibrary(BuildTarget):
             aliases.append(self.get_shbase())
         return aliases
 
+    def type_suffix(self):
+        return "@sha"
+
 class CustomTarget:
     known_kwargs = {'input' : True,
                     'output' : True,
@@ -788,6 +796,9 @@ class CustomTarget:
     def get_generated_sources(self):
         return []
 
+    def type_suffix(self):
+        return "@cus"
+
 class RunTarget:
     def __init__(self, name, command, args, subdir):
         self.name = name
@@ -816,6 +827,9 @@ class RunTarget:
     def get_filename(self):
         return self.name
 
+    def type_suffix(self):
+        return "@run"
+
 class Jar(BuildTarget):
     def __init__(self, name, subdir, is_cross, sources, objects, environment, kwargs):
         super().__init__(name, subdir, is_cross, sources, objects, environment, kwargs);
@@ -827,6 +841,9 @@ class Jar(BuildTarget):
     def get_main_class(self):
         return self.main_class
 
+    def type_suffix(self):
+        return "@jar"
+
 class ConfigureFile():
 
     def __init__(self, subdir, sourcename, targetname, configuration_data):

interpreter.py

@@ -1373,13 +1373,8 @@ class Interpreter():
         if len(args) != 1:
             raise InterpreterException('Incorrect number of arguments')
         name = args[0]
-        if name in coredata.forbidden_target_names:
-            raise InvalidArguments('Target name "%s" is reserved for Meson\'s internal use. Please rename.'\
-                                   % name)
-        if name in self.build.targets:
-            raise InvalidCode('Tried to create target "%s", but a target of that name already exists.' % name)
         tg = CustomTargetHolder(build.CustomTarget(name, self.subdir, kwargs))
-        self.build.targets[name] = tg.held_object
+        self.add_target(name, tg.held_object)
         return tg
 
     @stringArgs
@@ -1388,15 +1383,10 @@ class Interpreter():
         if len(args) < 2:
             raise InterpreterException('Incorrect number of arguments')
         name = args[0]
-        if name in coredata.forbidden_target_names:
-            raise InvalidArguments('Target name "%s" is reserved for Meson\'s internal use. Please rename.'\
-                                   % name)
-        if name in self.build.targets:
-            raise InvalidCode('Tried to create target "%s", but a target of that name already exists.' % name)
         command = args[1]
         cmd_args = args[2:]
         tg = RunTargetHolder(name, command, cmd_args, self.subdir)
-        self.build.targets[name] = tg.held_object
+        self.add_target(name, tg.held_object)
         return tg
 
     def func_generator(self, node, args, kwargs):
@@ -1609,6 +1599,19 @@ class Interpreter():
             results.append(s)
         return results
 
+    def add_target(self, name, tobj):
+        if name in coredata.forbidden_target_names:
+            raise InvalidArguments('Target name "%s" is reserved for Meson\'s internal use. Please rename.'\
+                                   % name)
+        # To permit an executable and a shared library to have the
+        # same name, such as "foo.exe" and "libfoo.a".
+        idname = name + tobj.type_suffix()
+        if idname in self.build.targets:
+            raise InvalidCode('Tried to create target "%s", but a target of that name already exists.' % name)
+        self.build.targets[idname] = tobj
+        if idname not in self.coredata.target_guids:
+            self.coredata.target_guids[idname] = str(uuid.uuid4()).upper()
+
     def build_target(self, node, args, kwargs, targetholder):
         name = args[0]
         sources = args[1:]
@@ -1619,9 +1622,6 @@ class Interpreter():
                 is_cross = True
         else:
             is_cross = False
-        if name in coredata.forbidden_target_names:
-            raise InvalidArguments('Target name "%s" is reserved for Meson\'s internal use. Please rename.'\
-                                   % name)
         try:
             kw_src = self.flatten(kwargs['sources'])
             if not isinstance(kw_src, list):
@@ -1634,8 +1634,6 @@ class Interpreter():
         kwargs['dependencies'] = self.flatten(kwargs.get('dependencies', []))
         if not isinstance(objs, list):
             objs = [objs]
-        if name in self.build.targets:
-            raise InvalidCode('Tried to create target "%s", but a target of that name already exists.' % name)
         self.check_sources_exist(os.path.join(self.source_root, self.subdir), sources)
         if targetholder is ExecutableHolder:
             targetclass = build.Executable
@@ -1650,9 +1648,7 @@ class Interpreter():
             raise RuntimeError('Unreachable code')
         target = targetclass(name, self.subdir, is_cross, sources, objs, self.environment, kwargs)
         l = targetholder(target)
-        self.build.targets[name] = l.held_object
-        if name not in self.coredata.target_guids:
-            self.coredata.target_guids[name] = str(uuid.uuid4()).upper()
+        self.add_target(name, l.held_object)
         self.global_args_frozen = True
         return l
 

ninjabackend.py

@@ -164,7 +164,7 @@ class NinjaBackend(backends.Backend):
             self.generate_custom_target(target, outfile)
         if isinstance(target, build.RunTarget):
             self.generate_run_target(target, outfile)
-        name = target.get_basename()
+        name = target.get_basename() + target.type_suffix()
         gen_src_deps = []
         if name in self.processed_targets:
             return
@@ -266,7 +266,7 @@ class NinjaBackend(backends.Backend):
 
     def process_target_dependencies(self, target, outfile):
         for t in target.get_dependencies():
-            tname = t.get_basename()
+            tname = t.get_basename() + t.type_suffix()
             if not tname in self.processed_targets:
                 self.generate_target(t, outfile)
 
@@ -305,7 +305,7 @@ class NinjaBackend(backends.Backend):
         elem.add_item('COMMAND', cmd)
         elem.add_item('description', 'Generating %s with a custom command.' % target.name)
         elem.write(outfile)
-        self.processed_targets[target.name] = True
+        self.processed_targets[target.name + target.type_suffix()] = True
 
     def generate_run_target(self, target, outfile):
         runnerscript = os.path.join(self.environment.get_script_dir(), 'commandrunner.py')
@@ -316,7 +316,7 @@ class NinjaBackend(backends.Backend):
         elem.add_item('description', 'Running external command %s.' % target.name)
         elem.add_item('pool', 'console')
         elem.write(outfile)
-        self.processed_targets[target.name] = True
+        self.processed_targets[target.name + target.type_suffix()] = True
 
     def generate_po(self, outfile):
         for p in self.build.pot:

test cases/common/86 same basename/exe1.c

@@ -0,0 +1,5 @@
+int func();
+
+int main(int argc, char **argv) {
+    return func();
+}

test cases/common/86 same basename/exe2.c

@@ -0,0 +1,5 @@
+int func();
+
+int main(int argc, char **argv) {
+    return func() == 1 ? 0 : 1;
+}

test cases/common/86 same basename/meson.build

@@ -0,0 +1,10 @@
+project('same basename', 'c')
+
+stlib = static_library('name', 'stat.c')
+shlib = shared_library('name', 'shar.c')
+
+exe1 = executable('name', 'exe1.c', link_with : stlib)
+exe2 = executable('name2', 'exe2.c', link_with : shlib)
+
+test('static', exe1)
+test('shared', exe2)

test cases/common/86 same basename/shar.c

@@ -0,0 +1,3 @@
+int func() {
+    return 1;
+}

test cases/common/86 same basename/stat.c

@@ -0,0 +1,3 @@
+int func() {
+    return 0;
+}

test cases/failing/17 same name/file.c

@@ -0,0 +1,3 @@
+int func() {
+    return 0;
+}

test cases/failing/17 same name/meson.build

@@ -0,0 +1,4 @@
+project('same name', 'c')
+
+static_library('foo', 'file.c')
+subdir('sub')

test cases/failing/17 same name/sub/file2.c

@@ -0,0 +1,3 @@
+int func() {
+    return 5;
+}

test cases/failing/17 same name/sub/meson.build

@@ -0,0 +1 @@
+static_library('foo', 'file2.c')