LLVMCodeBuilder: Fix non-raw value to unknown type conversion

Author: adazem009

src/engine/internal/llvm/llvmcodebuilder.cpp

@@ -2256,6 +2256,9 @@ llvm::Value *LLVMCodeBuilder::castValue(LLVMRegister *reg, Compiler::StaticType
                     return nullptr;
             }
 
+        case Compiler::StaticType::Unknown:
+            return createValue(reg);
+
         default:
             assert(false);
             return nullptr;

test/llvm/llvmcodebuilder_test.cpp

@@ -2106,6 +2106,56 @@ TEST_F(LLVMCodeBuilderTest, ReadVariable)
     ASSERT_EQ(testing::internal::GetCapturedStdout(), expected);
 }
 
+TEST_F(LLVMCodeBuilderTest, CastNonRawValueToUnknownType)
+{
+    Stage stage;
+    Sprite sprite;
+    sprite.setEngine(&m_engine);
+    EXPECT_CALL(m_engine, stage()).WillRepeatedly(Return(&stage));
+
+    auto var = std::make_shared<Variable>("", "", 87);
+    stage.addVariable(var);
+
+    createBuilder(&sprite, true);
+
+    // Unknown type
+    CompilerValue *v = m_builder->addVariableValue(var.get());
+    m_builder->addFunctionCall("test_print_unknown", Compiler::StaticType::Void, { Compiler::StaticType::Unknown }, { v });
+
+    // Number
+    v = m_builder->addConstValue(23.5);
+    m_builder->createVariableWrite(var.get(), v);
+    v = m_builder->addVariableValue(var.get());
+    m_builder->addFunctionCall("test_print_unknown", Compiler::StaticType::Void, { Compiler::StaticType::Unknown }, { v });
+
+    // String
+    v = m_builder->addConstValue("Hello world");
+    m_builder->createVariableWrite(var.get(), v);
+    v = m_builder->addVariableValue(var.get());
+    m_builder->addFunctionCall("test_print_unknown", Compiler::StaticType::Void, { Compiler::StaticType::Unknown }, { v });
+
+    // Bool
+    v = m_builder->addConstValue(true);
+    m_builder->createVariableWrite(var.get(), v);
+    v = m_builder->addVariableValue(var.get());
+    m_builder->addFunctionCall("test_print_unknown", Compiler::StaticType::Void, { Compiler::StaticType::Unknown }, { v });
+
+    std::string expected;
+    expected += var->value().toString() + '\n';
+    expected += "23.5\n";
+    expected += "Hello world\n";
+    expected += "true\n";
+
+    auto code = m_builder->finalize();
+    Script script(&sprite, nullptr, nullptr);
+    script.setCode(code);
+    Thread thread(&sprite, nullptr, &script);
+    auto ctx = code->createExecutionContext(&thread);
+    testing::internal::CaptureStdout();
+    code->run(ctx.get());
+    ASSERT_EQ(testing::internal::GetCapturedStdout(), expected);
+}
+
 TEST_F(LLVMCodeBuilderTest, ClearList)
 {
     Stage stage;