Function code_deparse_align

uncompyle6/semantics/aligner.py:128–206

ingests and deparses a given code block 'co'

(
    co,
    out=sys.stderr,
    version=None,
    is_pypy=None,
    debug_opts=DEFAULT_DEBUG_OPTS,
    code_objects={},
    compile_mode="exec",
)

def code_deparse_align(
    co,
    out=sys.stderr,
    version=None,
    is_pypy=None,
    debug_opts=DEFAULT_DEBUG_OPTS,
    code_objects={},
    compile_mode="exec",
):
    """
    ingests and deparses a given code block 'co'
    """

    assert iscode(co)

    if version is None:
        version = PYTHON_VERSION_TRIPLE
    if is_pypy is None:
        is_pypy = IS_PYPY

    # store final output stream for case of error
    scanner = get_scanner(version, is_pypy=is_pypy)

    tokens, customize = scanner.ingest(co, code_objects=code_objects)
    show_asm = debug_opts.get("asm", None)
    maybe_show_asm(show_asm, tokens)

    debug_parser = dict(PARSER_DEFAULT_DEBUG)
    show_grammar = debug_opts.get("grammar", None)
    show_grammar = debug_opts.get("grammar", None)
    if show_grammar:
        debug_parser["reduce"] = show_grammar
        debug_parser["errorstack"] = True

    #  Build a parse tree from tokenized and massaged disassembly.
    show_ast = debug_opts.get("ast", TREE_DEFAULT_DEBUG)
    deparsed = AligningWalker(
        version,
        out,
        scanner,
        showast=show_ast,
        debug_parser=debug_parser,
        compile_mode=compile_mode,
        is_pypy=is_pypy,
    )

    is_top_level_module = co.co_name == "<module>"
    deparsed.ast = deparsed.build_ast(
        tokens, customize, co, is_top_level_module=is_top_level_module
    )

    assert deparsed.ast == "stmts", "Should have parsed grammar start"

    del tokens  # save memory

    (deparsed.mod_globs, _) = find_globals_and_nonlocals(
        deparsed.ast, set(), set(), co, version
    )