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+#===- cindex.py - Python Indexing Library Bindings -----------*- python -*--===#
+#
+# The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+#===------------------------------------------------------------------------===#
+
+r"""
+Clang Indexing Library Bindings
+===============================
+
+This module provides an interface to the Clang indexing library. It is a
+low-level interface to the indexing library which attempts to match the Clang
+API directly while also being "pythonic". Notable differences from the C API
+are:
+
+ * string results are returned as Python strings, not CXString objects.
+
+ * null cursors are translated to None.
+
+ * access to child cursors is done via iteration, not visitation.
+
+The major indexing objects are:
+
+ Index
+
+ The top-level object which manages some global library state.
+
+ TranslationUnit
+
+ High-level object encapsulating the AST for a single translation unit. These
+ can be loaded from .ast files or parsed on the fly.
+
+ Cursor
+
+ Generic object for representing a node in the AST.
+
+ SourceRange, SourceLocation, and File
+
+ Objects representing information about the input source.
+
+Most object information is exposed using properties, when the underlying API
+call is efficient.
+"""
+
+# TODO
+# ====
+#
+# o API support for invalid translation units. Currently we can't even get the
+# diagnostics on failure because they refer to locations in an object that
+# will have been invalidated.
+#
+# o fix memory management issues (currently client must hold on to index and
+# translation unit, or risk crashes).
+#
+# o expose code completion APIs.
+#
+# o cleanup ctypes wrapping, would be nice to separate the ctypes details more
+# clearly, and hide from the external interface (i.e., help(cindex)).
+#
+# o implement additional SourceLocation, SourceRange, and File methods.
+
+from ctypes import *
+
+def get_cindex_library():
+ # FIXME: It's probably not the case that the library is actually found in
+ # this location. We need a better system of identifying and loading the
+ # CIndex library. It could be on path or elsewhere, or versioned, etc.
+ import platform
+ name = platform.system()
+ if name == 'Darwin':
+ return cdll.LoadLibrary('libCIndex.dylib')
+ elif name == 'Windows':
+ return cdll.LoadLibrary('libCIndex.dll')
+ else:
+ return cdll.LoadLibrary('libCIndex.so')
+
+# ctypes doesn't implicitly convert c_void_p to the appropriate wrapper
+# object. This is a problem, because it means that from_parameter will see an
+# integer and pass the wrong value on platforms where int != void*. Work around
+# this by marshalling object arguments as void**.
+c_object_p = POINTER(c_void_p)
+
+lib = get_cindex_library()
+
+### Structures and Utility Classes ###
+
+class _CXString(Structure):
+ """Helper for transforming CXString results."""
+
+ _fields_ = [("spelling", c_char_p), ("free", c_int)]
+
+ def __del__(self):
+ _CXString_dispose(self)
+
+ @staticmethod
+ def from_result(res, fn, args):
+ assert isinstance(res, _CXString)
+ return _CXString_getCString(res)
+
+class SourceLocation(Structure):
+ """
+ A SourceLocation represents a particular location within a source file.
+ """
+ _fields_ = [("ptr_data", c_void_p * 2), ("int_data", c_uint)]
+ _data = None
+
+ def _get_instantiation(self):
+ if self._data is None:
+ f, l, c, o = c_object_p(), c_uint(), c_uint(), c_uint()
+ SourceLocation_loc(self, byref(f), byref(l), byref(c), byref(o))
+ f = File(f) if f else None
+ self._data = (f, int(l.value), int(c.value), int(c.value))
+ return self._data
+
+ @property
+ def file(self):
+ """Get the file represented by this source location."""
+ return self._get_instantiation()[0]
+
+ @property
+ def line(self):
+ """Get the line represented by this source location."""
+ return self._get_instantiation()[1]
+
+ @property
+ def column(self):
+ """Get the column represented by this source location."""
+ return self._get_instantiation()[2]
+
+ @property
+ def offset(self):
+ """Get the file offset represented by this source location."""
+ return self._get_instantiation()[3]
+
+ def __repr__(self):
+ return "<SourceLocation file %r, line %r, column %r>" % (
+ self.file.name if self.file else None, self.line, self.column)
+
+class SourceRange(Structure):
+ """
+ A SourceRange describes a range of source locations within the source
+ code.
+ """
+ _fields_ = [
+ ("ptr_data", c_void_p * 2),
+ ("begin_int_data", c_uint),
+ ("end_int_data", c_uint)]
+
+ # FIXME: Eliminate this and make normal constructor? Requires hiding ctypes
+ # object.
+ @staticmethod
+ def from_locations(start, end):
+ return SourceRange_getRange(start, end)
+
+ @property
+ def start(self):
+ """
+ Return a SourceLocation representing the first character within a
+ source range.
+ """
+ return SourceRange_start(self)
+
+ @property
+ def end(self):
+ """
+ Return a SourceLocation representing the last character within a
+ source range.
+ """
+ return SourceRange_end(self)
+
+ def __repr__(self):
+ return "<SourceRange start %r, end %r>" % (self.start, self.end)
+
+class Diagnostic(object):
+ """
+ A Diagnostic is a single instance of a Clang diagnostic. It includes the
+ diagnostic severity, the message, the location the diagnostic occurred, as
+ well as additional source ranges and associated fix-it hints.
+ """
+
+ Ignored = 0
+ Note = 1
+ Warning = 2
+ Error = 3
+ Fatal = 4
+
+ def __init__(self, severity, location, spelling, ranges, fixits):
+ self.severity = severity
+ self.location = location
+ self.spelling = spelling
+ self.ranges = ranges
+ self.fixits = fixits
+
+ def __repr__(self):
+ return "<Diagnostic severity %r, location %r, spelling %r>" % (
+ self.severity, self.location, self.spelling)
+
+class FixIt(object):
+ """
+ A FixIt represents a transformation to be applied to the source to
+ "fix-it". The fix-it shouldbe applied by replacing the given source range
+ with the given value.
+ """
+
+ def __init__(self, range, value):
+ self.range = range
+ self.value = value
+
+ def __repr__(self):
+ return "<FixIt range %r, value %r>" % (self.range, self.value)
+
+### Cursor Kinds ###
+
+class CursorKind(object):
+ """
+ A CursorKind describes the kind of entity that a cursor points to.
+ """
+
+ # The unique kind objects, indexed by id.
+ _kinds = []
+ _name_map = None
+
+ def __init__(self, value):
+ if value >= len(CursorKind._kinds):
+ CursorKind._kinds += [None] * (value - len(CursorKind._kinds) + 1)
+ if CursorKind._kinds[value] is not None:
+ raise ValueError,'CursorKind already loaded'
+ self.value = value
+ CursorKind._kinds[value] = self
+ CursorKind._name_map = None
+
+ def from_param(self):
+ return self.value
+
+ @property
+ def name(self):
+ """Get the enumeration name of this cursor kind."""
+ if self._name_map is None:
+ self._name_map = {}
+ for key,value in CursorKind.__dict__.items():
+ if isinstance(value,CursorKind):
+ self._name_map[value] = key
+ return self._name_map[self]
+
+ @staticmethod
+ def from_id(id):
+ if id >= len(CursorKind._kinds) or CursorKind._kinds[id] is None:
+ raise ValueError,'Unknown cursor kind'
+ return CursorKind._kinds[id]
+
+ @staticmethod
+ def get_all_kinds():
+ """Return all CursorKind enumeration instances."""
+ return filter(None, CursorKind._kinds)
+
+ def is_declaration(self):
+ """Test if this is a declaration kind."""
+ return CursorKind_is_decl(self)
+
+ def is_reference(self):
+ """Test if this is a reference kind."""
+ return CursorKind_is_ref(self)
+
+ def is_expression(self):
+ """Test if this is an expression kind."""
+ return CursorKind_is_expr(self)
+
+ def is_statement(self):
+ """Test if this is a statement kind."""
+ return CursorKind_is_stmt(self)
+
+ def is_invalid(self):
+ """Test if this is an invalid kind."""
+ return CursorKind_is_inv(self)
+
+ def __repr__(self):
+ return 'CursorKind.%s' % (self.name,)
+
+# FIXME: Is there a nicer way to expose this enumeration? We could potentially
+# represent the nested structure, or even build a class hierarchy. The main
+# things we want for sure are (a) simple external access to kinds, (b) a place
+# to hang a description and name, (c) easy to keep in sync with Index.h.
+
+###
+# Declaration Kinds
+
+# A declaration whose specific kind is not exposed via this interface.
+#
+# Unexposed declarations have the same operations as any other kind of
+# declaration; one can extract their location information, spelling, find their
+# definitions, etc. However, the specific kind of the declaration is not
+# reported.
+CursorKind.UNEXPOSED_DECL = CursorKind(1)
+
+# A C or C++ struct.
+CursorKind.STRUCT_DECL = CursorKind(2)
+
+# A C or C++ union.
+CursorKind.UNION_DECL = CursorKind(3)
+
+# A C++ class.
+CursorKind.CLASS_DECL = CursorKind(4)
+
+# An enumeration.
+CursorKind.ENUM_DECL = CursorKind(5)
+
+# A field (in C) or non-static data member (in C++) in a struct, union, or C++
+# class.
+CursorKind.FIELD_DECL = CursorKind(6)
+
+# An enumerator constant.
+CursorKind.ENUM_CONSTANT_DECL = CursorKind(7)
+
+# A function.
+CursorKind.FUNCTION_DECL = CursorKind(8)
+
+# A variable.
+CursorKind.VAR_DECL = CursorKind(9)
+
+# A function or method parameter.
+CursorKind.PARM_DECL = CursorKind(10)
+
+# An Objective-C @interface.
+CursorKind.OBJC_INTERFACE_DECL = CursorKind(11)
+
+# An Objective-C @interface for a category.
+CursorKind.OBJC_CATEGORY_DECL = CursorKind(12)
+
+# An Objective-C @protocol declaration.
+CursorKind.OBJC_PROTOCOL_DECL = CursorKind(13)
+
+# An Objective-C @property declaration.
+CursorKind.OBJC_PROPERTY_DECL = CursorKind(14)
+
+# An Objective-C instance variable.
+CursorKind.OBJC_IVAR_DECL = CursorKind(15)
+
+# An Objective-C instance method.
+CursorKind.OBJC_INSTANCE_METHOD_DECL = CursorKind(16)
+
+# An Objective-C class method.
+CursorKind.OBJC_CLASS_METHOD_DECL = CursorKind(17)
+
+# An Objective-C @implementation.
+CursorKind.OBJC_IMPLEMENTATION_DECL = CursorKind(18)
+
+# An Objective-C @implementation for a category.
+CursorKind.OBJC_CATEGORY_IMPL_DECL = CursorKind(19)
+
+# A typedef.
+CursorKind.TYPEDEF_DECL = CursorKind(20)
+
+###
+# Reference Kinds
+
+CursorKind.OBJC_SUPER_CLASS_REF = CursorKind(40)
+CursorKind.OBJC_PROTOCOL_REF = CursorKind(41)
+CursorKind.OBJC_CLASS_REF = CursorKind(42)
+
+# A reference to a type declaration.
+#
+# A type reference occurs anywhere where a type is named but not
+# declared. For example, given:
+# typedef unsigned size_type;
+# size_type size;
+#
+# The typedef is a declaration of size_type (CXCursor_TypedefDecl),
+# while the type of the variable "size" is referenced. The cursor
+# referenced by the type of size is the typedef for size_type.
+CursorKind.TYPE_REF = CursorKind(43)
+
+###
+# Invalid/Error Kinds
+
+CursorKind.INVALID_FILE = CursorKind(70)
+CursorKind.NO_DECL_FOUND = CursorKind(71)
+CursorKind.NOT_IMPLEMENTED = CursorKind(72)
+
+###
+# Expression Kinds
+
+# An expression whose specific kind is not exposed via this interface.
+#
+# Unexposed expressions have the same operations as any other kind of
+# expression; one can extract their location information, spelling, children,
+# etc. However, the specific kind of the expression is not reported.
+CursorKind.UNEXPOSED_EXPR = CursorKind(100)
+
+# An expression that refers to some value declaration, such as a function,
+# varible, or enumerator.
+CursorKind.DECL_REF_EXPR = CursorKind(101)
+
+# An expression that refers to a member of a struct, union, class, Objective-C
+# class, etc.
+CursorKind.MEMBER_REF_EXPR = CursorKind(102)
+
+# An expression that calls a function.
+CursorKind.CALL_EXPR = CursorKind(103)
+
+# An expression that sends a message to an Objective-C object or class.
+CursorKind.OBJC_MESSAGE_EXPR = CursorKind(104)
+
+# A statement whose specific kind is not exposed via this interface.
+#
+# Unexposed statements have the same operations as any other kind of statement;
+# one can extract their location information, spelling, children, etc. However,
+# the specific kind of the statement is not reported.
+CursorKind.UNEXPOSED_STMT = CursorKind(200)
+
+###
+# Other Kinds
+
+# Cursor that represents the translation unit itself.
+#
+# The translation unit cursor exists primarily to act as the root cursor for
+# traversing the contents of a translation unit.
+CursorKind.TRANSLATION_UNIT = CursorKind(300)
+
+### Cursors ###
+
+class Cursor(Structure):
+ """
+ The Cursor class represents a reference to an element within the AST. It
+ acts as a kind of iterator.
+ """
+ _fields_ = [("_kind_id", c_int), ("data", c_void_p * 3)]
+
+ def __eq__(self, other):
+ return Cursor_eq(self, other)
+
+ def __ne__(self, other):
+ return not Cursor_eq(self, other)
+
+ def is_definition(self):
+ """
+ Returns true if the declaration pointed at by the cursor is also a
+ definition of that entity.
+ """
+ return Cursor_is_def(self)
+
+ def get_definition(self):
+ """
+ If the cursor is a reference to a declaration or a declaration of
+ some entity, return a cursor that points to the definition of that
+ entity.
+ """
+ # TODO: Should probably check that this is either a reference or
+ # declaration prior to issuing the lookup.
+ return Cursor_def(self)
+
+ def get_usr(self):
+ """Return the Unified Symbol Resultion (USR) for the entity referenced
+ by the given cursor (or None).
+
+ A Unified Symbol Resolution (USR) is a string that identifies a
+ particular entity (function, class, variable, etc.) within a
+ program. USRs can be compared across translation units to determine,
+ e.g., when references in one translation refer to an entity defined in
+ another translation unit."""
+ return Cursor_usr(self)
+
+ @property
+ def kind(self):
+ """Return the kind of this cursor."""
+ return CursorKind.from_id(self._kind_id)
+
+ @property
+ def spelling(self):
+ """Return the spelling of the entity pointed at by the cursor."""
+ if not self.kind.is_declaration():
+ # FIXME: clang_getCursorSpelling should be fixed to not assert on
+ # this, for consistency with clang_getCursorUSR.
+ return None
+ return Cursor_spelling(self)
+
+ @property
+ def location(self):
+ """
+ Return the source location (the starting character) of the entity
+ pointed at by the cursor.
+ """
+ return Cursor_loc(self)
+
+ @property
+ def extent(self):
+ """
+ Return the source range (the range of text) occupied by the entity
+ pointed at by the cursor.
+ """
+ return Cursor_extent(self)
+
+ def get_children(self):
+ """Return an iterator for accessing the children of this cursor."""
+
+ # FIXME: Expose iteration from CIndex, PR6125.
+ def visitor(child, parent, children):
+ # FIXME: Document this assertion in API.
+ # FIXME: There should just be an isNull method.
+ assert child != Cursor_null()
+ children.append(child)
+ return 1 # continue
+ children = []
+ Cursor_visit(self, Cursor_visit_callback(visitor), children)
+ return iter(children)
+
+ @staticmethod
+ def from_result(res, fn, args):
+ assert isinstance(res, Cursor)
+ # FIXME: There should just be an isNull method.
+ if res == Cursor_null():
+ return None
+ return res
+
+## CIndex Objects ##
+
+# CIndex objects (derived from ClangObject) are essentially lightweight
+# wrappers attached to some underlying object, which is exposed via CIndex as
+# a void*.
+
+class ClangObject(object):
+ """
+ A helper for Clang objects. This class helps act as an intermediary for
+ the ctypes library and the Clang CIndex library.
+ """
+ def __init__(self, obj):
+ assert isinstance(obj, c_object_p) and obj
+ self.obj = self._as_parameter_ = obj
+
+ def from_param(self):
+ return self._as_parameter_
+
+
+class _CXUnsavedFile(Structure):
+ """Helper for passing unsaved file arguments."""
+ _fields_ = [("name", c_char_p), ("contents", c_char_p), ('length', c_ulong)]
+
+## Diagnostic Conversion ##
+
+# Diagnostic objects are temporary, we must extract all the information from the
+# diagnostic object when it is passed to the callback.
+
+_clang_getDiagnosticSeverity = lib.clang_getDiagnosticSeverity
+_clang_getDiagnosticSeverity.argtypes = [c_object_p]
+_clang_getDiagnosticSeverity.restype = c_int
+
+_clang_getDiagnosticLocation = lib.clang_getDiagnosticLocation
+_clang_getDiagnosticLocation.argtypes = [c_object_p]
+_clang_getDiagnosticLocation.restype = SourceLocation
+
+_clang_getDiagnosticSpelling = lib.clang_getDiagnosticSpelling
+_clang_getDiagnosticSpelling.argtypes = [c_object_p]
+_clang_getDiagnosticSpelling.restype = _CXString
+_clang_getDiagnosticSpelling.errcheck = _CXString.from_result
+
+_clang_getDiagnosticNumRanges = lib.clang_getDiagnosticNumRanges
+_clang_getDiagnosticNumRanges.argtypes = [c_object_p]
+_clang_getDiagnosticNumRanges.restype = c_uint
+
+_clang_getDiagnosticRange = lib.clang_getDiagnosticRange
+_clang_getDiagnosticRange.argtypes = [c_object_p, c_uint]
+_clang_getDiagnosticRange.restype = SourceRange
+
+_clang_getDiagnosticNumFixIts = lib.clang_getDiagnosticNumFixIts
+_clang_getDiagnosticNumFixIts.argtypes = [c_object_p]
+_clang_getDiagnosticNumFixIts.restype = c_uint
+
+_clang_getDiagnosticFixItKind = lib.clang_getDiagnosticFixItKind
+_clang_getDiagnosticFixItKind.argtypes = [c_object_p, c_uint]
+_clang_getDiagnosticFixItKind.restype = c_int
+
+_clang_getDiagnosticFixItInsertion = lib.clang_getDiagnosticFixItInsertion
+_clang_getDiagnosticFixItInsertion.argtypes = [c_object_p, c_uint,
+ POINTER(SourceLocation)]
+_clang_getDiagnosticFixItInsertion.restype = _CXString
+_clang_getDiagnosticFixItInsertion.errcheck = _CXString.from_result
+
+_clang_getDiagnosticFixItRemoval = lib.clang_getDiagnosticFixItRemoval
+_clang_getDiagnosticFixItRemoval.argtypes = [c_object_p, c_uint,
+ POINTER(SourceLocation)]
+_clang_getDiagnosticFixItRemoval.restype = _CXString
+_clang_getDiagnosticFixItRemoval.errcheck = _CXString.from_result
+
+_clang_getDiagnosticFixItReplacement = lib.clang_getDiagnosticFixItReplacement
+_clang_getDiagnosticFixItReplacement.argtypes = [c_object_p, c_uint,
+ POINTER(SourceRange)]
+_clang_getDiagnosticFixItReplacement.restype = _CXString
+_clang_getDiagnosticFixItReplacement.errcheck = _CXString.from_result
+
+def _convert_fixit(diag_ptr, index):
+ # We normalize all the fix-its to a single representation, this is more
+ # convenient.
+ #
+ # FIXME: Push this back into API? It isn't exactly clear what the
+ # SourceRange semantics are, we should make sure we can represent an empty
+ # range.
+ kind = _clang_getDiagnosticFixItKind(diag_ptr, index)
+ range = None
+ value = None
+ if kind == 0: # insertion
+ location = SourceLocation()
+ value = _clang_getDiagnosticFixItInsertion(diag_ptr, index,
+ byref(location))
+ range = SourceRange.from_locations(location, location)
+ elif kind == 1: # removal
+ range = _clang_getDiagnosticFixItRemoval(diag_ptr, index)
+ value = ''
+ else: # replacement
+ assert kind == 2
+ range = SourceRange()
+ value = _clang_getDiagnosticFixItReplacement(diag_ptr, index,
+ byref(range))
+ return FixIt(range, value)
+
+def _convert_diag(diag_ptr, diag_list):
+ severity = _clang_getDiagnosticSeverity(diag_ptr)
+ loc = _clang_getDiagnosticLocation(diag_ptr)
+ spelling = _clang_getDiagnosticSpelling(diag_ptr)
+
+ # Diagnostic ranges.
+ num_ranges = _clang_getDiagnosticNumRanges(diag_ptr)
+ ranges = [_clang_getDiagnosticRange(diag_ptr, i)
+ for i in range(num_ranges)]
+
+ fixits = [_convert_fixit(diag_ptr, i)
+ for i in range(_clang_getDiagnosticNumFixIts(diag_ptr))]
+
+ diag_list.append(Diagnostic(severity, loc, spelling, ranges, fixits))
+
+###
+
+class Index(ClangObject):
+ """
+ The Index type provides the primary interface to the Clang CIndex library,
+ primarily by providing an interface for reading and parsing translation
+ units.
+ """
+
+ @staticmethod
+ def create(excludeDecls=False):
+ """
+ Create a new Index.
+ Parameters:
+ excludeDecls -- Exclude local declarations from translation units.
+ """
+ return Index(Index_create(excludeDecls))
+
+ def __del__(self):
+ Index_dispose(self)
+
+ def read(self, path):
+ """Load the translation unit from the given AST file."""
+ # FIXME: In theory, we could support streaming diagnostics. It's hard to
+ # integrate this into the API cleanly, however. Resolve.
+ diags = []
+ ptr = TranslationUnit_read(self, path,
+ Diagnostic_callback(_convert_diag), diags)
+ return TranslationUnit(ptr) if ptr else None
+
+ def parse(self, path, args = [], unsaved_files = []):
+ """
+ Load the translation unit from the given source code file by running
+ clang and generating the AST before loading. Additional command line
+ parameters can be passed to clang via the args parameter.
+
+ In-memory contents for files can be provided by passing a list of pairs
+ to as unsaved_files, the first item should be the filenames to be mapped
+ and the second should be the contents to be substituted for the
+ file. The contents may be passed as strings or file objects.
+ """
+ arg_array = 0
+ if len(args):
+ arg_array = (c_char_p * len(args))(* args)
+ unsaved_files_array = 0
+ if len(unsaved_files):
+ unsaved_files_array = (_CXUnsavedFile * len(unsaved_files))()
+ for i,(name,value) in enumerate(unsaved_files):
+ if not isinstance(value, str):
+ # FIXME: It would be great to support an efficient version
+ # of this, one day.
+ value = value.read()
+ print value
+ if not isinstance(value, str):
+ raise TypeError,'Unexpected unsaved file contents.'
+ unsaved_files_array[i].name = name
+ unsaved_files_array[i].contents = value
+ unsaved_files_array[i].length = len(value)
+ # FIXME: In theory, we could support streaming diagnostics. It's hard to
+ # integrate this into the API cleanly, however. Resolve.
+ diags = []
+ ptr = TranslationUnit_parse(self, path, len(args), arg_array,
+ len(unsaved_files), unsaved_files_array,
+ Diagnostic_callback(_convert_diag), diags)
+ return TranslationUnit(ptr, diags) if ptr else None
+
+
+class TranslationUnit(ClangObject):
+ """
+ The TranslationUnit class represents a source code translation unit and
+ provides read-only access to its top-level declarations.
+ """
+
+ def __init__(self, ptr, diagnostics):
+ ClangObject.__init__(self, ptr)
+ self.diagnostics = diagnostics
+
+ def __del__(self):
+ TranslationUnit_dispose(self)
+
+ @property
+ def cursor(self):
+ """Retrieve the cursor that represents the given translation unit."""
+ return TranslationUnit_cursor(self)
+
+ @property
+ def spelling(self):
+ """Get the original translation unit source file name."""
+ return TranslationUnit_spelling(self)
+
+ def get_includes(self):
+ """
+ Return an iterable sequence of FileInclusion objects that describe the
+ sequence of inclusions in a translation unit. The first object in
+ this sequence is always the input file. Note that this method will not
+ recursively iterate over header files included through precompiled
+ headers.
+ """
+ def visitor(fobj, lptr, depth, includes):
+ loc = lptr.contents
+ includes.append(FileInclusion(loc.file, File(fobj), loc, depth))
+
+ # Automatically adapt CIndex/ctype pointers to python objects
+ includes = []
+ TranslationUnit_includes(self,
+ TranslationUnit_includes_callback(visitor),
+ includes)
+ return iter(includes)
+
+class File(ClangObject):
+ """
+ The File class represents a particular source file that is part of a
+ translation unit.
+ """
+
+ @property
+ def name(self):
+ """Return the complete file and path name of the file."""
+ return File_name(self)
+
+ @property
+ def time(self):
+ """Return the last modification time of the file."""
+ return File_time(self)
+
+class FileInclusion(object):
+ """
+ The FileInclusion class represents the inclusion of one source file by
+ another via a '#include' directive or as the input file for the translation
+ unit. This class provides information about the included file, the including
+ file, the location of the '#include' directive and the depth of the included
+ file in the stack. Note that the input file has depth 0.
+ """
+
+ def __init__(self, src, tgt, loc, depth):
+ self.source = src
+ self.include = tgt
+ self.location = loc
+ self.depth = depth
+
+ @property
+ def is_input_file(self):
+ """True if the included file is the input file."""
+ return self.depth == 0
+
+# Additional Functions and Types
+
+# String Functions
+_CXString_dispose = lib.clang_disposeString
+_CXString_dispose.argtypes = [_CXString]
+
+_CXString_getCString = lib.clang_getCString
+_CXString_getCString.argtypes = [_CXString]
+_CXString_getCString.restype = c_char_p
+
+# Source Location Functions
+SourceLocation_loc = lib.clang_getInstantiationLocation
+SourceLocation_loc.argtypes = [SourceLocation, POINTER(c_object_p),
+ POINTER(c_uint), POINTER(c_uint),
+ POINTER(c_uint)]
+
+# Source Range Functions
+SourceRange_getRange = lib.clang_getRange
+SourceRange_getRange.argtypes = [SourceLocation, SourceLocation]
+SourceRange_getRange.restype = SourceRange
+
+SourceRange_start = lib.clang_getRangeStart
+SourceRange_start.argtypes = [SourceRange]
+SourceRange_start.restype = SourceLocation
+
+SourceRange_end = lib.clang_getRangeEnd
+SourceRange_end.argtypes = [SourceRange]
+SourceRange_end.restype = SourceLocation
+
+# CursorKind Functions
+CursorKind_is_decl = lib.clang_isDeclaration
+CursorKind_is_decl.argtypes = [CursorKind]
+CursorKind_is_decl.restype = bool
+
+CursorKind_is_ref = lib.clang_isReference
+CursorKind_is_ref.argtypes = [CursorKind]
+CursorKind_is_ref.restype = bool
+
+CursorKind_is_expr = lib.clang_isExpression
+CursorKind_is_expr.argtypes = [CursorKind]
+CursorKind_is_expr.restype = bool
+
+CursorKind_is_stmt = lib.clang_isStatement
+CursorKind_is_stmt.argtypes = [CursorKind]
+CursorKind_is_stmt.restype = bool
+
+CursorKind_is_inv = lib.clang_isInvalid
+CursorKind_is_inv.argtypes = [CursorKind]
+CursorKind_is_inv.restype = bool
+
+# Cursor Functions
+# TODO: Implement this function
+Cursor_get = lib.clang_getCursor
+Cursor_get.argtypes = [TranslationUnit, SourceLocation]
+Cursor_get.restype = Cursor
+
+Cursor_null = lib.clang_getNullCursor
+Cursor_null.restype = Cursor
+
+Cursor_usr = lib.clang_getCursorUSR
+Cursor_usr.argtypes = [Cursor]
+Cursor_usr.restype = _CXString
+Cursor_usr.errcheck = _CXString.from_result
+
+Cursor_is_def = lib.clang_isCursorDefinition
+Cursor_is_def.argtypes = [Cursor]
+Cursor_is_def.restype = bool
+
+Cursor_def = lib.clang_getCursorDefinition
+Cursor_def.argtypes = [Cursor]
+Cursor_def.restype = Cursor
+Cursor_def.errcheck = Cursor.from_result
+
+Cursor_eq = lib.clang_equalCursors
+Cursor_eq.argtypes = [Cursor, Cursor]
+Cursor_eq.restype = c_uint
+
+Cursor_spelling = lib.clang_getCursorSpelling
+Cursor_spelling.argtypes = [Cursor]
+Cursor_spelling.restype = _CXString
+Cursor_spelling.errcheck = _CXString.from_result
+
+Cursor_loc = lib.clang_getCursorLocation
+Cursor_loc.argtypes = [Cursor]
+Cursor_loc.restype = SourceLocation
+
+Cursor_extent = lib.clang_getCursorExtent
+Cursor_extent.argtypes = [Cursor]
+Cursor_extent.restype = SourceRange
+
+Cursor_ref = lib.clang_getCursorReferenced
+Cursor_ref.argtypes = [Cursor]
+Cursor_ref.restype = Cursor
+Cursor_ref.errcheck = Cursor.from_result
+
+Cursor_visit_callback = CFUNCTYPE(c_int, Cursor, Cursor, py_object)
+Cursor_visit = lib.clang_visitChildren
+Cursor_visit.argtypes = [Cursor, Cursor_visit_callback, py_object]
+Cursor_visit.restype = c_uint
+
+# Index Functions
+Index_create = lib.clang_createIndex
+Index_create.argtypes = [c_int]
+Index_create.restype = c_object_p
+
+Index_dispose = lib.clang_disposeIndex
+Index_dispose.argtypes = [Index]
+
+# Translation Unit Functions
+Diagnostic_callback = CFUNCTYPE(None, c_object_p, py_object)
+
+TranslationUnit_read = lib.clang_createTranslationUnit
+TranslationUnit_read.argtypes = [Index, c_char_p,
+ Diagnostic_callback, py_object]
+TranslationUnit_read.restype = c_object_p
+
+TranslationUnit_parse = lib.clang_createTranslationUnitFromSourceFile
+TranslationUnit_parse.argtypes = [Index, c_char_p, c_int, c_void_p,
+ c_int, c_void_p,
+ Diagnostic_callback, py_object]
+TranslationUnit_parse.restype = c_object_p
+
+TranslationUnit_cursor = lib.clang_getTranslationUnitCursor
+TranslationUnit_cursor.argtypes = [TranslationUnit]
+TranslationUnit_cursor.restype = Cursor
+TranslationUnit_cursor.errcheck = Cursor.from_result
+
+TranslationUnit_spelling = lib.clang_getTranslationUnitSpelling
+TranslationUnit_spelling.argtypes = [TranslationUnit]
+TranslationUnit_spelling.restype = _CXString
+TranslationUnit_spelling.errcheck = _CXString.from_result
+
+TranslationUnit_dispose = lib.clang_disposeTranslationUnit
+TranslationUnit_dispose.argtypes = [TranslationUnit]
+
+TranslationUnit_includes_callback = CFUNCTYPE(None,
+ c_object_p,
+ POINTER(SourceLocation),
+ c_uint, py_object)
+TranslationUnit_includes = lib.clang_getInclusions
+TranslationUnit_includes.argtypes = [TranslationUnit,
+ TranslationUnit_includes_callback,
+ py_object]
+
+# File Functions
+File_name = lib.clang_getFileName
+File_name.argtypes = [File]
+File_name.restype = c_char_p
+
+File_time = lib.clang_getFileTime
+File_time.argtypes = [File]
+File_time.restype = c_uint
+
+###
+
+__all__ = ['Index', 'TranslationUnit', 'Cursor', 'CursorKind',
+ 'Diagnostic', 'FixIt', 'SourceRange', 'SourceLocation', 'File']
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