# pygccxml.declarations.declarations_matchers module

class calldef_matcher_t(name=None, return_type=None, arg_types=None, decl_type=None, header_dir=None, header_file=None)

  Bases: `pygccxml.declarations.declarations_matchers.declaration_matcher_t`

  Instance of this class will match callable by the following criteria:

    - `declaration_matcher_t` criteria

    - return type. For example: `int_t` or ‘int’

    - argument types

class declaration_matcher_t(name=None, decl_type=None, header_dir=None, header_file=None)

  Bases: `pygccxml.declarations.matchers.matcher_base_t`

  Instance of this class will match declarations by next criteria:

    - declaration name, also could be fully qualified name Example: wstring or ::std::wstring

    - declaration type Example: `class_t`, `namespace_t`, `enumeration_t`

    - location within file system ( file or directory )

  check_name(decl)
  property decl_name_only
  is_full_name()
  property name

class namespace_matcher_t(name=None)

  Bases: `pygccxml.declarations.declarations_matchers.declaration_matcher_t`

  Instance of this class will match namespaces by name.

class operator_matcher_t(name=None, symbol=None, return_type=None, arg_types=None, decl_type=None, header_dir=None, header_file=None)

  Bases: `pygccxml.declarations.declarations_matchers.calldef_matcher_t`

  Instance of this class will match operators by next criteria:

    - `calldef_matcher_t` criteria

    - operator symbol: =, !=, (), [] and etc

class variable_matcher_t(name=None, decl_type=None, header_dir=None, header_file=None)

  Bases: `pygccxml.declarations.declarations_matchers.declaration_matcher_t`

  Instance of this class will match variables by next criteria:

    - `declaration_matcher_t` criteria

    - variable type. Example: `int_t` or ‘int’