mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
1cd4d4e9c9
Fixes:
* multiple statements on one line (colon) (E701)
* missing whitespace around arithmetic operator (E226)
* missing whitespace around operator (E225)
* closing bracket does not match visual indentation (E124)
* blank line contains whitespace (W293)
* continuation line missing indentation or outdented (E122)
* continuation line over-indented for hanging indent (E126)
* missing expected blank line (E301)
* trailing whitespace (W291)
* unexpected spaces around keyword / parameter equals (E251)
* whitespace after '(', '[' or '{' (E201)
* whitespace before ')', ']' or '}' (E202)
* whitespace before ',' or ':' (E203)
105 lines
3.4 KiB
Python
105 lines
3.4 KiB
Python
##===--- SwiftIntTypes.py -----------------------------*- coding: utf-8 -*-===##
|
|
##
|
|
## This source file is part of the Swift.org open source project
|
|
##
|
|
## Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
|
|
## Licensed under Apache License v2.0 with Runtime Library Exception
|
|
##
|
|
## See http://swift.org/LICENSE.txt for license information
|
|
## See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
|
|
##
|
|
##===----------------------------------------------------------------------===##
|
|
|
|
# Bit counts for all int types
|
|
_all_integer_type_bitwidths = [8, 16, 32, 64]
|
|
|
|
# Number of bits in the biggest int type
|
|
int_max_bits = max(_all_integer_type_bitwidths)
|
|
|
|
class SwiftIntegerType(object):
|
|
def __init__(self, is_word, bits, is_signed):
|
|
self.is_word = is_word
|
|
self.bits = bits
|
|
self.is_signed = is_signed
|
|
|
|
if is_word:
|
|
self.possible_bitwidths = [32, 64]
|
|
else:
|
|
self.possible_bitwidths = [bits]
|
|
|
|
# Derived properties
|
|
self.stdlib_name = \
|
|
('' if is_signed else 'U') + \
|
|
'Int' + \
|
|
('' if is_word else str(bits))
|
|
|
|
self.builtin_name = 'Int' + str(bits)
|
|
|
|
def get_opposite_signedness(self):
|
|
return SwiftIntegerType(self.is_word, self.bits, not self.is_signed)
|
|
|
|
def __eq__(self, other):
|
|
return self.is_word == other.is_word and \
|
|
self.bits == other.bits and \
|
|
self.is_signed == other.is_signed
|
|
|
|
def __ne__(self, other):
|
|
return not self.__eq__(other)
|
|
|
|
def all_integer_types(word_bits):
|
|
for bitwidth in _all_integer_type_bitwidths:
|
|
for is_signed in [False, True]:
|
|
yield SwiftIntegerType(is_word=False, bits=bitwidth,
|
|
is_signed=is_signed)
|
|
|
|
for is_signed in [False, True]:
|
|
yield SwiftIntegerType(is_word=True, bits=word_bits,
|
|
is_signed=is_signed)
|
|
|
|
# 'truncatingBitPattern' initializer is defined if the conversion is truncating
|
|
# on any platform that Swift supports.
|
|
def should_define_truncating_bit_pattern_init(src_ty, dst_ty):
|
|
# Don't define a truncating conversion between a type and itself.
|
|
if src_ty == dst_ty:
|
|
return False
|
|
|
|
# Conversion to opposite signedness is never truncating.
|
|
if src_ty == dst_ty.get_opposite_signedness():
|
|
return False
|
|
|
|
for src_ty_bits in src_ty.possible_bitwidths:
|
|
for dst_ty_bits in dst_ty.possible_bitwidths:
|
|
if src_ty_bits > dst_ty_bits:
|
|
return True
|
|
|
|
return False
|
|
|
|
def all_integer_type_names():
|
|
return [self_ty.stdlib_name for self_ty in all_integer_types(0)]
|
|
|
|
def all_real_number_type_names():
|
|
return ['Float', 'Double'] # FIXME , 'Float80' Revert until I figure out a test failure # Float80 for i386 & x86_64
|
|
|
|
def all_numeric_type_names():
|
|
return all_integer_type_names() + all_real_number_type_names()
|
|
|
|
def numeric_type_names_Macintosh_only():
|
|
return ['Float80']
|
|
|
|
# Swift_Programming_Language/Expressions.html
|
|
|
|
def all_integer_binary_operator_names():
|
|
return ['<<', '>>', '&*', '&', '&+', '&-', '|', '^']
|
|
|
|
def all_integer_or_real_binary_operator_names():
|
|
return ['*', '/', '%', '+', '-', '..<', '...']
|
|
|
|
def all_arithmetic_comparison_operator_names():
|
|
return ['<', '<=', '>', '>=', '==', '!=']
|
|
|
|
def all_integer_assignment_operator_names():
|
|
return ['<<=', '>>=', '&=', '^=', '|=']
|
|
|
|
def all_integer_or_real_assignment_operator_names():
|
|
return ['=', '*=', '/=', '%=', '+=', '-=']
|