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Change flag enum definitions to use bit shift instead of literals

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Bit shifts are easier to read and less error-prone than typing the
values out by hand.
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dgelessus 2018-02-25 17:11:39 +01:00
parent 6b067bd762
commit a9a3168345
1 changed files with 24 additions and 24 deletions
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48
rsrcfork/api.py
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@ -57,34 +57,34 @@ STRUCT_RESOURCE_NAME_HEADER = struct.Struct(">B")
class ResourceFileAttrs(enum.Flag):
"""Resource file attribute flags. The descriptions for these flags are taken from comments on the map*Bit and map* enum constants in <CarbonCore/Resources.h>."""
mapResourcesLocked = 32768 # "Resources Locked" (undocumented, but available as a checkbox in ResEdit)
_UNKNOWN_16384 = 16384
_UNKNOWN_8192 = 8192
_UNKNOWN_4096 = 4096
_UNKNOWN_2048 = 2048
_UNKNOWN_1024 = 1024
_UNKNOWN_512 = 512
mapPrinterDriverMultiFinderCompatible = 256 # "Printer Driver MultiFinder Compatible" (undocumented, but available as a checkbox in ResEdit)
mapReadOnly = 128 # "is this file read-only?", "Resource file read-only"
mapCompact = 64 # "Is a compact necessary?", "Compact resource file"
mapChanged = 32 # "Is it necessary to write map?", "Write map out at update"
_UNKNOWN_16 = 16
_UNKNOWN_8 = 8
_UNKNOWN_4 = 4
_UNKNOWN_2 = 2
_UNKNWON_1 = 1
mapResourcesLocked = 1 << 15 # "Resources Locked" (undocumented, but available as a checkbox in ResEdit)
_BIT_14 = 1 << 14
_BIT_13 = 1 << 13
_BIT_12 = 1 << 12
_BIT_11 = 1 << 11
_BIT_10 = 1 << 10
_BIT_9 = 1 << 9
mapPrinterDriverMultiFinderCompatible = 1 << 8 # "Printer Driver MultiFinder Compatible" (undocumented, but available as a checkbox in ResEdit)
mapReadOnly = 1 << 7 # "is this file read-only?", "Resource file read-only"
mapCompact = 1 << 6 # "Is a compact necessary?", "Compact resource file"
mapChanged = 1 << 5 # "Is it necessary to write map?", "Write map out at update"
_BIT_4 = 1 << 4
_BIT_3 = 1 << 3
_BIT_2 = 1 << 2
_BIT_1 = 1 << 1
_BIT_0 = 1 << 0
class ResourceAttrs(enum.Flag):
"""Resource attribute flags. The descriptions for these flags are taken from comments on the res*Bit and res* enum constants in <CarbonCore/Resources.h>."""
resSysRef = 128 # "reference to system/local reference" (only documented as resSysRefBit = 7 in <CarbonCore/Resources.h>
resSysHeap = 64 # "In system/in application heap", "System or application heap?"
resPurgeable = 32 # "Purgeable/not purgeable", "Purgeable resource?"
resLocked = 16 # "Locked/not locked", "Load it in locked?"
resProtected = 8 # "Protected/not protected", "Protected?"
resPreload = 4 # "Read in at OpenResource?", "Load in on OpenResFile?"
resChanged = 2 # "Existing resource changed since last update", "Resource changed?"
resCompressed = 1 # "indicates that the resource data is compressed" (only documented in https://github.com/kreativekorp/ksfl/wiki/Macintosh-Resource-File-Format)
resSysRef = 1 << 7 # "reference to system/local reference" (only documented as resSysRefBit = 7 in <CarbonCore/Resources.h>
resSysHeap = 1 << 6 # "In system/in application heap", "System or application heap?"
resPurgeable = 1 << 5 # "Purgeable/not purgeable", "Purgeable resource?"
resLocked = 1 << 4 # "Locked/not locked", "Load it in locked?"
resProtected = 1 << 3 # "Protected/not protected", "Protected?"
resPreload = 1 << 2 # "Read in at OpenResource?", "Load in on OpenResFile?"
resChanged = 1 << 1 # "Existing resource changed since last update", "Resource changed?"
resCompressed = 1 << 0 # "indicates that the resource data is compressed" (only documented in https://github.com/kreativekorp/ksfl/wiki/Macintosh-Resource-File-Format)
class Resource(object):
"""A single resource from a resource file."""