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[python] Make python lint pass (#4296)

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This commit is contained in:
Michael Gottesman
2016-08-14 22:49:14 -04:00
committed by GitHub
parent 46858eb2ee
commit 751e8c51ac
3 changed files with 41 additions and 24 deletions
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47
utils/SwiftFloatingPointTypes.py
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@@ -1,4 +1,4 @@
# ===--- SwiftFloatingPointTypes.py ----------------------------*- coding: utf-8 -*-===//
# ===--- SwiftFloatingPointTypes.py ------------------*- coding: utf-8 -*-===//
#
# This source file is part of the Swift.org open source project
#
@@ -8,21 +8,25 @@
# See http://swift.org/LICENSE.txt for license information
# See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
# returns (lower, upper) exclusive bounds for the integer values
# that can be stored into a float
def getFtoIBounds(floatBits, intBits, signed):
sigBits = floating_point_bits_to_type()[floatBits].explicit_significand_bits
if not signed:
return (-1, 1 << intBits)
upper = 1 << (intBits - 1)
if intBits <= sigBits:
return (-upper - 1, upper)
ulp = 1 << (intBits - sigBits)
return (-upper - ulp, upper)
floatTy = floating_point_bits_to_type()[floatBits]
sigBits = floatTy.explicit_significand_bits
if not signed:
return (-1, 1 << intBits)
upper = 1 << (intBits - 1)
if intBits <= sigBits:
return (-upper - 1, upper)
ulp = 1 << (intBits - sigBits)
return (-upper - ulp, upper)
class SwiftFloatType(object):
def __init__(self, name, cFuncSuffix, significandBits, exponentBits, significandSize, totalBits):
def __init__(self, name, cFuncSuffix, significandBits, exponentBits,
significandSize, totalBits):
self.stdlib_name = name
self.cFuncSuffix = cFuncSuffix
self.significand_bits = significandBits
@@ -30,19 +34,26 @@ class SwiftFloatType(object):
self.exponent_bits = exponentBits
self.explicit_significand_bits = significandBits + 1
self.bits = totalBits
def floating_point_bits_to_type():
return {
32: SwiftFloatType(name="Float", cFuncSuffix="f", significandBits=23, exponentBits=8, significandSize=32, totalBits=32),
64: SwiftFloatType(name="Double", cFuncSuffix="", significandBits=52, exponentBits=11, significandSize=64, totalBits=64),
80: SwiftFloatType(name="Float80", cFuncSuffix="l", significandBits=63, exponentBits=15, significandSize=64, totalBits=80),
32: SwiftFloatType(name="Float", cFuncSuffix="f", significandBits=23,
exponentBits=8, significandSize=32, totalBits=32),
64: SwiftFloatType(name="Double", cFuncSuffix="", significandBits=52,
exponentBits=11, significandSize=64, totalBits=64),
80: SwiftFloatType(name="Float80", cFuncSuffix="l", significandBits=63,
exponentBits=15, significandSize=64, totalBits=80),
}
def all_floating_point_types():
return floating_point_bits_to_type().values()
# // Bit counts for all floating point types.
# // 80-bit floating point types are only permitted on x86 architectures. This
# // restriction is handled via #if's in the generated code.
# Bit counts for all floating point types.
#
# 80-bit floating point types are only permitted on x86 architectures. This
# restriction is handled via #if's in the generated code.
def all_floating_point_bits():
return floating_point_bits_to_type().keys()