Solve minor bugs from C# loader.

Author: viferga

source/loaders/cs_loader/CMakeLists.txt

@@ -130,6 +130,7 @@ add_library(${target} MODULE
 # Add target dependencies
 add_dependencies(${target}
 	${LOADER_MODULE_NAMES}
+	cs_loader_impl
 )
 
 # Create namespaced alias

source/loaders/cs_loader/include/cs_loader/simple_netcore.h

@@ -38,11 +38,11 @@ netcore_handle simple_netcore_create(char * dotnet_root, char * dotnet_loader_as
 
 reflect_function * simple_netcore_get_functions(netcore_handle, int *);
 
-void simple_netcore_load_script_from_files(netcore_handle handle, char * files[MAX_FILES], size_t size);
+int simple_netcore_load_script_from_files(netcore_handle handle, char * files[MAX_FILES], size_t size);
 
-void simple_netcore_load_script_from_assembly(netcore_handle handle, char * file);
+int simple_netcore_load_script_from_assembly(netcore_handle handle, char * file);
 
-void simple_netcore_load_script_from_memory(netcore_handle handle, const char * buffer, size_t size);
+int simple_netcore_load_script_from_memory(netcore_handle handle, const char * buffer, size_t size);
 
 execution_result * simple_netcore_invoke(netcore_handle, const char *);
 

source/loaders/cs_loader/netcore/source/Providers/LoaderBase.cs

@@ -144,6 +144,7 @@ public bool LoadFromAssembly(string assemblyFile)
                 catch (Exception exName)
                 {
                     this.log.Error(exName.Message, exName);
+                    return false;
                 }
             }
 

source/loaders/cs_loader/source/cs_loader_impl.c

@@ -274,27 +274,35 @@ loader_handle cs_loader_impl_load_from_file(loader_impl impl, const loader_namin
 		files[i] = (char*)paths[i];
 	}
 
-	simple_netcore_load_script_from_files(nhandle, files, size);
+	if (simple_netcore_load_script_from_files(nhandle, files, size) != 0)
+	{
+		return NULL;
+	}
 
 	return (loader_handle)impl;
 }
 
 loader_handle cs_loader_impl_load_from_package(loader_impl impl, const loader_naming_path path) {
 	netcore_handle nhandle = (netcore_handle)loader_impl_get(impl);
 
-	simple_netcore_load_script_from_assembly(nhandle, (char *)path);
+	if (simple_netcore_load_script_from_assembly(nhandle, (char *)path) != 0)
+	{
+		return NULL;
+	}
 
 	return (loader_handle)impl;
 }
 
 loader_handle cs_loader_impl_load_from_memory(loader_impl impl, const loader_naming_name name, const char * buffer, size_t size)
 {
-
 	(void)name;
 
 	netcore_handle nhandle = (netcore_handle)loader_impl_get(impl);
 
-	simple_netcore_load_script_from_memory(nhandle, buffer, size);
+	if (simple_netcore_load_script_from_memory(nhandle, buffer, size) != 0)
+	{
+		return NULL;
+	}
 
 	return (loader_handle)impl;
 }

source/loaders/cs_loader/source/simple_netcore.cpp

@@ -60,37 +60,29 @@ void simple_netcore_destroy(netcore_handle handle)
 	delete core;
 }
 
-void simple_netcore_load_script_from_files(netcore_handle handle, char * files[MAX_FILES], size_t size)
+int simple_netcore_load_script_from_files(netcore_handle handle, char * files[MAX_FILES], size_t size)
 {
 	netcore * core = (netcore*)handle;
 
-	if (core->load_files(files, size))
-	{
-
-	}
+	return core->load_files(files, size) == true ? 0 : 1;
 }
 
-void simple_netcore_load_script_from_assembly(netcore_handle handle, char * file)
+int simple_netcore_load_script_from_assembly(netcore_handle handle, char * file)
 {
 	netcore * core = (netcore*)handle;
 
-	if (core->load_assembly(file))
-	{
-
-	}
+	return core->load_assembly(file) == true ? 0 : 1;
 }
 
-void simple_netcore_load_script_from_memory(netcore_handle handle, const char * buffer, size_t size)
+int simple_netcore_load_script_from_memory(netcore_handle handle, const char * buffer, size_t size)
 {
 	netcore * core = (netcore*)handle;
 
 	(void)size;
 
-	if (core->load_source((char*)buffer))
-	{
-
-	}
+	return core->load_source((char*)buffer) == true ? 0 : 1;
 }
+
 execution_result * simple_netcore_invoke(netcore_handle handle, const char * func)
 {
 	netcore * core = (netcore*)handle;

source/tests/cs_loader_test/source/cs_loader_test.cpp

@@ -85,3 +85,16 @@ TEST_F(cs_loader_test, Concat)
 
 	metacall_value_destroy(ret);
 }
+
+TEST_F(cs_loader_test, Fail)
+{
+	/* This is a Python script on purpose, in order to test C# when it fails */
+	static const char buffer[] =
+		"#!/usr/bin/env python3\n"
+		"def multmem(left: int, right: int) -> int:\n"
+		"\tresult = left * right;\n"
+		"\tprint(left, ' * ', right, ' = ', result);\n"
+		"\treturn result;";
+
+	EXPECT_EQ((int) 1, (int) metacall_load_from_memory("cs", buffer, sizeof(buffer), NULL));
+}