579c65da1b
Struct variant field visibility is now inherited. Remove `pub` keywords from declarations. Closes #18641 [breaking-change]
135 lines
4.0 KiB
Python
Executable File
135 lines
4.0 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Copyright 2013 The Rust Project Developers. See the COPYRIGHT
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# file at the top-level directory of this distribution and at
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# http://rust-lang.org/COPYRIGHT.
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#
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# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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# option. This file may not be copied, modified, or distributed
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# except according to those terms.
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"""
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This script creates a pile of compile-fail tests check that all the
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derivings have spans that point to the fields, rather than the
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#[deriving(...)] line.
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sample usage: src/etc/generate-deriving-span-tests.py
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"""
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import sys, os, datetime, stat
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TEST_DIR = os.path.abspath(
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os.path.join(os.path.dirname(__file__), '../test/compile-fail'))
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YEAR = datetime.datetime.now().year
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TEMPLATE = """// Copyright {year} The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
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extern crate rand;
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{error_deriving}
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struct Error;
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{code}
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fn main() {{}}
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"""
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ENUM_STRING = """
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#[deriving({traits})]
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enum Enum {{
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A(
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Error {errors}
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)
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}}
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"""
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ENUM_STRUCT_VARIANT_STRING = """
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#[deriving({traits})]
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enum Enum {{
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A {{
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x: Error {errors}
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}}
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}}
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"""
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STRUCT_STRING = """
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#[deriving({traits})]
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struct Struct {{
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x: Error {errors}
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}}
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"""
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STRUCT_TUPLE_STRING = """
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#[deriving({traits})]
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struct Struct(
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Error {errors}
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);
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"""
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ENUM_TUPLE, ENUM_STRUCT, STRUCT_FIELDS, STRUCT_TUPLE = range(4)
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def create_test_case(type, trait, super_traits, number_of_errors):
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string = [ENUM_STRING, ENUM_STRUCT_VARIANT_STRING, STRUCT_STRING, STRUCT_TUPLE_STRING][type]
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all_traits = ','.join([trait] + super_traits)
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super_traits = ','.join(super_traits)
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error_deriving = '#[deriving(%s)]' % super_traits if super_traits else ''
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errors = '\n'.join('//~%s ERROR' % ('^' * n) for n in range(error_count))
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code = string.format(traits = all_traits, errors = errors)
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return TEMPLATE.format(year = YEAR, error_deriving=error_deriving, code = code)
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def write_file(name, string):
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test_file = os.path.join(TEST_DIR, 'deriving-span-%s.rs' % name)
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# set write permission if file exists, so it can be changed
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if os.path.exists(test_file):
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os.chmod(test_file, stat.S_IWUSR)
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with open(test_file, 'wt') as f:
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f.write(string)
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# mark file read-only
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os.chmod(test_file, stat.S_IRUSR|stat.S_IRGRP|stat.S_IROTH)
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ENUM = 1
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STRUCT = 2
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ALL = STRUCT | ENUM
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traits = {
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'Zero': (STRUCT, [], 1),
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'Default': (STRUCT, [], 1),
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'FromPrimitive': (0, [], 0), # only works for C-like enums
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'Decodable': (0, [], 0), # FIXME: quoting gives horrible spans
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'Encodable': (0, [], 0), # FIXME: quoting gives horrible spans
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}
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for (trait, supers, errs) in [('Rand', [], 1),
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('Clone', [], 1),
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('PartialEq', [], 2),
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('PartialOrd', ['PartialEq'], 8),
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('Eq', ['PartialEq'], 1),
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('Ord', ['Eq', 'PartialOrd', 'PartialEq'], 1),
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('Show', [], 1),
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('Hash', [], 1)]:
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traits[trait] = (ALL, supers, errs)
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for (trait, (types, super_traits, error_count)) in traits.items():
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mk = lambda ty: create_test_case(ty, trait, super_traits, error_count)
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if types & ENUM:
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write_file(trait + '-enum', mk(ENUM_TUPLE))
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write_file(trait + '-enum-struct-variant', mk(ENUM_STRUCT))
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if types & STRUCT:
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write_file(trait + '-struct', mk(STRUCT_FIELDS))
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write_file(trait + '-tuple-struct', mk(STRUCT_TUPLE))
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