Function test_expression_language

src/core/unit_tests.cpp:2326–2381

}

static void test_expression_language()
{
	namespace el = expression_language;
	memory_globals::init();
	{
		unsigned byte_code[1024];
		f32 stack_data[32];
		el::Stack stack(stack_data, countof(stack_data));

		u32 num = el::compile(""
			, 0
			, NULL
			, 0
			, NULL
			, NULL
			, byte_code
			, countof(byte_code)
			);
		ENSURE(num <= countof(byte_code));

		bool ok = el::run(byte_code, NULL, stack);
		ENSURE(ok && stack.size == 0);
	}
	{
		auto eval = [](const char *expr) {
			unsigned byte_code[1024];
			f32 stack_data[32];
			const char *variable_names[] = { "a", "b" };
			f32 variable_values[] = { 2.0f, 1.5f };
			const char *constant_names[] = { "PI" };
			f32 constant_values[] = { 3.14159265359f };
			el::Stack stack(stack_data, countof(stack_data));

			u32 num = el::compile(expr
				, countof(variable_names)
				, variable_names
				, countof(constant_names)
				, constant_names
				, constant_values
				, byte_code
				, countof(byte_code)
				);
			ENSURE(num <= countof(byte_code));

			bool ok = el::run(byte_code, variable_values, stack);
			ENSURE(ok && stack.size > 0);
			return stack_data[stack.size - 1];
		};

		ENSURE(fequal(eval("1 + 1"), 2.0f, 0.0001f));
		ENSURE(fequal(eval("a + b"), 3.5f, 0.0001f));
		ENSURE(fequal(eval("3*(sin(PI/2) + 2) - 1"), 8.0f, 0.0001f));
		ENSURE(fequal(eval("2*b*(sin(a)/2) + 2) - 1"), 2.36394f, 0.0001f));
	}
	memory_globals::shutdown();
}

static void test_unit_id()