3 # Copyright 2013 The Rust Project Developers. See the COPYRIGHT
4 # file at the top-level directory of this distribution and at
5 # http://rust-lang.org/COPYRIGHT.
7 # Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
8 # http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
9 # <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
10 # option. This file may not be copied, modified, or distributed
11 # except according to those terms.
14 This script creates a pile of compile-fail tests check that all the
15 derives have spans that point to the fields, rather than the
18 sample usage: src/etc/generate-deriving-span-tests.py
21 import sys, os, datetime, stat
23 TEST_DIR = os.path.abspath(
24 os.path.join(os.path.dirname(__file__), '../test/compile-fail'))
26 YEAR = datetime.datetime.now().year
28 TEMPLATE = """// Copyright {year} The Rust Project Developers. See the COPYRIGHT
29 // file at the top-level directory of this distribution and at
30 // http://rust-lang.org/COPYRIGHT.
32 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
33 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
34 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
35 // option. This file may not be copied, modified, or distributed
36 // except according to those terms.
38 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
56 ENUM_STRUCT_VARIANT_STRING = """
70 STRUCT_TUPLE_STRING = """
77 ENUM_TUPLE, ENUM_STRUCT, STRUCT_FIELDS, STRUCT_TUPLE = range(4)
79 def create_test_case(type, trait, super_traits, number_of_errors):
80 string = [ENUM_STRING, ENUM_STRUCT_VARIANT_STRING, STRUCT_STRING, STRUCT_TUPLE_STRING][type]
81 all_traits = ','.join([trait] + super_traits)
82 super_traits = ','.join(super_traits)
83 error_deriving = '#[derive(%s)]' % super_traits if super_traits else ''
85 errors = '\n'.join('//~%s ERROR' % ('^' * n) for n in range(error_count))
86 code = string.format(traits = all_traits, errors = errors)
87 return TEMPLATE.format(year = YEAR, error_deriving=error_deriving, code = code)
89 def write_file(name, string):
90 test_file = os.path.join(TEST_DIR, 'derives-span-%s.rs' % name)
92 # set write permission if file exists, so it can be changed
93 if os.path.exists(test_file):
94 os.chmod(test_file, stat.S_IWUSR)
96 with open(test_file, 'wt') as f:
100 os.chmod(test_file, stat.S_IRUSR|stat.S_IRGRP|stat.S_IROTH)
109 'Zero': (STRUCT, [], 1),
110 'Default': (STRUCT, [], 1),
111 'FromPrimitive': (0, [], 0), # only works for C-like enums
113 'Decodable': (0, [], 0), # FIXME: quoting gives horrible spans
114 'Encodable': (0, [], 0), # FIXME: quoting gives horrible spans
117 for (trait, supers, errs) in [('Clone', [], 1),
118 ('PartialEq', [], 2),
119 ('PartialOrd', ['PartialEq'], 8),
120 ('Eq', ['PartialEq'], 1),
121 ('Ord', ['Eq', 'PartialOrd', 'PartialEq'], 1),
124 traits[trait] = (ALL, supers, errs)
126 for (trait, (types, super_traits, error_count)) in traits.items():
127 mk = lambda ty: create_test_case(ty, trait, super_traits, error_count)
129 write_file(trait + '-enum', mk(ENUM_TUPLE))
130 write_file(trait + '-enum-struct-variant', mk(ENUM_STRUCT))
132 write_file(trait + '-struct', mk(STRUCT_FIELDS))
133 write_file(trait + '-tuple-struct', mk(STRUCT_TUPLE))