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1#!/usr/bin/env python
2
3#===- cindex-dump.py - cindex/Python Source Dump -------------*- python -*--===#
4#
5#                     The LLVM Compiler Infrastructure
6#
7# This file is distributed under the University of Illinois Open Source
8# License. See LICENSE.TXT for details.
9#
10#===------------------------------------------------------------------------===#
11
12"""
13A simple command line tool for dumping a source file using the Clang Index
14Library.
15"""
16
17def get_diag_info(diag):
18    return { 'severity' : diag.severity,
19             'location' : diag.location,
20             'spelling' : diag.spelling,
21             'ranges' : diag.ranges,
22             'fixits' : diag.fixits }
23
24def get_cursor_id(cursor, cursor_list = []):
25    if not opts.showIDs:
26        return None
27
28    if cursor is None:
29        return None
30
31    # FIXME: This is really slow. It would be nice if the index API exposed
32    # something that let us hash cursors.
33    for i,c in enumerate(cursor_list):
34        if cursor == c:
35            return i
36    cursor_list.append(cursor)
37    return len(cursor_list) - 1
38
39def get_info(node, depth=0):
40    if opts.maxDepth is not None and depth >= opts.maxDepth:
41        children = None
42    else:
43        children = [get_info(c, depth+1)
44                    for c in node.get_children()]
45    return { 'id' : get_cursor_id(node),
46             'kind' : node.kind,
47             'usr' : node.get_usr(),
48             'spelling' : node.spelling,
49             'location' : node.location,
50             'extent.start' : node.extent.start,
51             'extent.end' : node.extent.end,
52             'is_definition' : node.is_definition(),
53             'definition id' : get_cursor_id(node.get_definition()),
54             'children' : children }
55
56def main():
57    from clang.cindex import Index
58    from pprint import pprint
59
60    from optparse import OptionParser, OptionGroup
61
62    global opts
63
64    parser = OptionParser("usage: %prog [options] {filename} [clang-args*]")
65    parser.add_option("", "--show-ids", dest="showIDs",
66                      help="Compute cursor IDs (very slow)",
67                      action="store_true", default=False)
68    parser.add_option("", "--max-depth", dest="maxDepth",
69                      help="Limit cursor expansion to depth N",
70                      metavar="N", type=int, default=None)
71    parser.disable_interspersed_args()
72    (opts, args) = parser.parse_args()
73
74    if len(args) == 0:
75        parser.error('invalid number arguments')
76
77    index = Index.create()
78    tu = index.parse(None, args)
79    if not tu:
80        parser.error("unable to load input")
81
82    pprint(('diags', map(get_diag_info, tu.diagnostics)))
83    pprint(('nodes', get_info(tu.cursor)))
84
85if __name__ == '__main__':
86    main()
87
88