diff options
Diffstat (limited to 'cpp/072scenario_screen.cc')
| -rw-r--r-- | cpp/072scenario_screen.cc | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/cpp/072scenario_screen.cc b/cpp/072scenario_screen.cc index e928f867..4bc42940 100644 --- a/cpp/072scenario_screen.cc +++ b/cpp/072scenario_screen.cc @@ -1,4 +1,7 @@ -//: Some cleaner way to manipulate and check the screen in scenarios. +//: Clean syntax to manipulate and check the screen in scenarios. +//: Instructions 'assume-screen' and 'screen-should-contain' implicitly create +//: a variable called 'screen' that is accessible inside other 'run' +//: instructions in the scenario. :(scenarios run_mu_scenario) :(scenario screen_in_scenario) @@ -34,6 +37,22 @@ scenario screen-in-scenario-error [ ] +warn: expected screen location (0, 0) to contain 'b' instead of 'a' +:(before "End Globals") +// Scenarios may not define default-space, so they should fit within the +// initial area of memory reserved for tests. We'll put the predefined +// variables available to them at the end of that region. +const size_t Max_variables_in_scenarios = Reserved_for_tests-100; +size_t Next_predefined_global_for_scenarios = Max_variables_in_scenarios; +:(before "End Setup") +assert(Next_predefined_global_for_scenarios < Reserved_for_tests); + +:(before "End Globals") +// Scenario Globals. +const size_t SCREEN = Next_predefined_global_for_scenarios++; +// End Scenario Globals. +:(before "End Predefined Scenario Locals In Run") +Name[tmp_recipe[0]]["screen"] = SCREEN; + :(before "End Rewrite Instruction(curr)") // rewrite `assume-screen width, height` to // `screen:address <- init-fake-screen width, height` @@ -42,7 +61,7 @@ if (curr.name == "assume-screen") { curr.operation = Recipe_number["init-fake-screen"]; assert(curr.products.empty()); curr.products.push_back(reagent("screen:address")); - curr.products[0].set_value(Reserved_for_tests-1); + curr.products[0].set_value(SCREEN); //? cout << "after: " << curr.to_string() << '\n'; //? 1 //? cout << "AAA " << Recipe_number["init-fake-screen"] << '\n'; //? 1 } @@ -61,9 +80,8 @@ case SCREEN_SHOULD_CONTAIN: { :(code) void check_screen(const string& contents) { - static const int screen_variable = Reserved_for_tests-1; assert(!Current_routine->calls.top().default_space); // not supported - index_t screen_location = Memory[screen_variable]; + index_t screen_location = Memory[SCREEN]; int data_offset = find_element_name(Type_number["screen"], "data"); assert(data_offset >= 0); index_t screen_data_location = screen_location+data_offset; // type: address:array:character |