Class Symbol

scripts/kconfig/kconfiglib.py:4086–5093

Represents a configuration symbol: (menu)config FOO ... The following attributes are available. They should be viewed as read-only, and some are implemented through @property magic (but are still efficient to access due to internal caching). Note: Prompts, hel

class Symbol(object):
    """
    Represents a configuration symbol:

      (menu)config FOO
          ...

    The following attributes are available. They should be viewed as read-only,
    and some are implemented through @property magic (but are still efficient
    to access due to internal caching).

    Note: Prompts, help texts, and locations are stored in the Symbol's
    MenuNode(s) rather than in the Symbol itself. Check the MenuNode class and
    the Symbol.nodes attribute. This organization matches the C tools.

    name:
      The name of the symbol, e.g. "FOO" for 'config FOO'.

    type:
      The type of the symbol. One of BOOL, TRISTATE, STRING, INT, HEX, UNKNOWN.
      UNKNOWN is for undefined symbols, (non-special) constant symbols, and
      symbols defined without a type.

      When running without modules (MODULES having the value n), TRISTATE
      symbols magically change type to BOOL. This also happens for symbols
      within choices in "y" mode. This matches the C tools, and makes sense for
      menuconfig-like functionality.

    orig_type:
      The type as given in the Kconfig file, without any magic applied. Used
      when printing the symbol.

    tri_value:
      The tristate value of the symbol as an integer. One of 0, 1, 2,
      representing n, m, y. Always 0 (n) for non-bool/tristate symbols.

      This is the symbol value that's used outside of relation expressions
      (A, !A, A && B, A || B).

    str_value:
      The value of the symbol as a string. Gives the value for string/int/hex
      symbols. For bool/tristate symbols, gives "n", "m", or "y".

      This is the symbol value that's used in relational expressions
      (A = B, A != B, etc.)

      Gotcha: For int/hex symbols, the exact format of the value is often
      preserved (e.g. when writing a .config file), hence why you can't get it
      directly as an int. Do int(int_sym.str_value) or
      int(hex_sym.str_value, 16) to get the integer value.

    user_value:
      The user value of the symbol. None if no user value has been assigned
      (via Kconfig.load_config() or Symbol.set_value()).

      Holds 0, 1, or 2 for bool/tristate symbols, and a string for the other
      symbol types.