feat: converter accepts the constructs of goodluke and SaintlyCorruption

`init -490 screen`, `import x as y` and `from m import A as B`, classes with @renpy.pure, pickle hooks
on classes, `*` items in tuples and lists, generator functions (yield statements; the player runs them
to the end), multi-line expressions that need brackets, Null() and Animation() images, images given as
expressions (`"path/{}.png".format(x)`, f-strings), window statements in init, `offset` in ATL, input
widgets with their values and the focus/confirm actions, `continue` and `break` in screens, `drag`
and DiamondBox-style `fixed` with cell_size, `getattr(...)()` calls, transforms called with arguments,
and the whitelist for the new runtime. JSON files of a game are shipped as data files. Also fixes
blocking_names failing on a call of a call during full conversion.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

backend/tests/test_compatibility.py

@@ -80,7 +80,7 @@ def test_renpy_only_declarations_are_not_execution_blockers(tmp_path):
 
 
 @pytest.mark.parametrize("source,reason", [
-    ('init python:\n    def helper():\n        yield 1\nlabel start:\n    $ helper()', "init python"),
+    ('init python:\n    def helper():\n        received = yield 1\nlabel start:\n    $ helper()', "init python"),
     ('label start:\n    $ result = renpy.show_displayable("map")', "renpy.show_displayable"),
     ('label start:\n    jump missing', "missing"),
 ])
@@ -362,3 +362,14 @@ def test_upload_rejects_unsupported_engine_without_queueing(tmp_path, monkeypatc
         assert not upload_path(123).exists()
     finally:
         get_settings.cache_clear()
+
+
+def test_blocking_names_survives_a_call_of_a_call():
+    from app.converter.compatibility import blocking_names
+
+    data = ScriptData()
+    source = ('init python:\n    def helper():\n        return getattr(renpy.store, "x", lambda: 1)()\n'
+              'label start:\n    $ helper()\n')
+    data.prescan(source)
+    RpyParser(data, "t.rpy").parse(source)
+    assert blocking_names(data) == []

backend/tests/test_converter.py

@@ -57,10 +57,10 @@ def test_if_chain_and_menu():
 
 
 def test_unsupported_python_is_reported_not_fatal():
-    d = parse("init python:\n    def f():\n        yield 1\n    x = 1\nlabel start:\n    $ y = x\n")
+    d = parse("init python:\n    def f():\n        received = yield 1\n    x = 1\nlabel start:\n    $ y = x\n")
     assert d.init_code[0]["op"] == "set" and "f" in d.deferred  # reported once something calls it
     from app.converter.compatibility import audit_ir
-    d = parse("init python:\n    def f():\n        yield 1\nlabel start:\n    $ f()\n")
+    d = parse("init python:\n    def f():\n        received = yield 1\nlabel start:\n    $ f()\n")
     audit_ir(d)
     assert d.blockers
 

backend/tests/test_renpy_universal.py

@@ -235,3 +235,33 @@ def test_init_if_has_live2d_keeps_only_the_else_branch_and_crop_call_glued_to_a_
 def test_static_atl_line_with_a_spaced_crop_tuple():
     data = parse('image plap:\n    "base"\n    crop (1697,54, 172, 94)\nimage slurp:\n    "base"\n    crop (1, 2, 3, 4) xanchor 0.5\n')
     assert not data.blockers
+
+
+def test_priority_screen_continue_and_offset_with_computed_halves():
+    data = parse('init -490 screen s(items):\n    for item in items:\n        if item == 1:\n            continue\n        text "[item]"\n'
+                 'transform lift:\n    linear 0.2 offset (0, -LIFT)\nlabel start:\n    call screen s([1, 2])\n')
+    assert "s" in data.screens
+    loop = data.screens["s"]["body"][0]
+    assert loop["c"] == "for" and loop["body"][0]["branches"][0]["body"] == [{"c": "continue"}]
+    assert not data.blockers
+
+
+def test_import_alias_decorated_class_null_image_window_in_init_and_offset_line():
+    from app.converter import pyexpr
+
+    code = pyexpr.parse_stmts("import time as stamp\nfrom renpy.text.text import Text as RenpyText\n"
+                              "@renpy.pure\nclass Typing(VariableInputValue):\n    pass\n")
+    assert code[0] == {"op": "set", "t": {"k": "name", "id": "stamp"}, "v": {"k": "name", "id": "time"}}
+    assert code[1]["v"] == {"k": "name", "id": "Text"} and code[2]["op"] == "class"
+    data = parse('init 1:\n    image blank = Null()\ninit -1:\n    window hide\ntransform t:\n    offset (0, 0)\n    on idle:\n        linear 0.2 offset (1, 2)\n')
+    assert data.images["blank"] == {"color": "#00000000"} and not data.blockers
+
+
+def test_starred_tuple_items_and_pickle_hooks_are_accepted():
+    from app import pgvn
+    from app.converter import pyexpr
+
+    code = pyexpr.parse_stmts("pair = (first, *rest)\nclass Scene:\n    def __setstate__(self, state):\n        pass\n    def run(self):\n        return 1\n")
+    pgvn.statements(code)
+    assert code[0]["v"]["v"][1] == {"k": "star", "v": {"k": "name", "id": "rest"}}
+    assert [m["name"] for m in code[1]["body"]] == ["run"]

backend/tests/test_screens.py

@@ -246,3 +246,16 @@ def test_dynamic_at_value_and_draggable_box():
     body = data.screens["s"]["body"]
     assert body[0]["props"]["at"][0]["dyn"]["k"] == "sub"
     assert body[1]["w"] == "drag" and "draggable" in body[1]["props"]
+
+
+def test_input_widget_values_and_focus_actions_are_accepted():
+    data = parse('screen s():\n    default name_value = VariableInputValue("name")\n    input:\n        id "player_name_input"\n'
+                 '        value name_value\n        length 12\n    input:\n        default "Bob"\n        allow "ab"\n'
+                 '    textbutton "x" action [name_value.Toggle(), Confirm("sure?", yes=NullAction()), CaptureFocus("tip")]\n'
+                 '    for i in [1, 2]:\n        if i == 1:\n            continue\n        text "[i]"\n'
+                 'label start:\n    call screen s\n')
+    audit_ir(data)
+    require_supported_scripts(data)
+    body = data.screens["s"]["body"]
+    assert [n.get("w") for n in body[:3]] == ["input", "input", "textbutton"]
+    assert "default" in body[1]["props"] and "value" in body[0]["props"]