sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

BaseTools: Optimize string concatenation

Browse Source 
https://bugzilla.tianocore.org/show_bug.cgi?id=1288

This patch is one of build tool performance improvement
series patches.

This patch is going to use join function instead of
string += string2 statement.

Current code use string += string2 in a loop to combine
a string. while creating a string list in a loop and using
"".join(stringlist) after the loop will be much faster.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: BobCF <bob.c.feng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
This commit is contained in:
BobCF
2018-11-08 18:16:25 +08:00
parent 2f818ed0fb
commit 4e37570739
4 changed files with 44 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
BaseTools/Source/Python/AutoGen/StrGather.py
View File

@ -137,7 +137,7 @@ def AscToHexList(Ascii):
# @retval Str: A string of .h file content
#
def CreateHFileContent(BaseName, UniObjectClass, IsCompatibleMode, UniGenCFlag):
Str = ''
Str = []
ValueStartPtr = 60
Line = COMMENT_DEFINE_STR + ' ' + LANGUAGE_NAME_STRING_NAME + ' ' * (ValueStartPtr - len(DEFINE_STR + LANGUAGE_NAME_STRING_NAME)) + DecToHexStr(0, 4) + COMMENT_NOT_REFERENCED
Str = WriteLine(Str, Line)
@ -166,12 +166,12 @@ def CreateHFileContent(BaseName, UniObjectClass, IsCompatibleMode, UniGenCFlag):
Line = COMMENT_DEFINE_STR + ' ' + Name + ' ' * (ValueStartPtr - len(DEFINE_STR + Name)) + DecToHexStr(Token, 4) + COMMENT_NOT_REFERENCED
UnusedStr = WriteLine(UnusedStr, Line)
Str = ''.join([Str, UnusedStr])
Str.extend( UnusedStr)
Str = WriteLine(Str, '')
if IsCompatibleMode or UniGenCFlag:
Str = WriteLine(Str, 'extern unsigned char ' + BaseName + 'Strings[];')
return Str
return "".join(Str)
## Create a complete .h file
#
@ -187,7 +187,7 @@ def CreateHFileContent(BaseName, UniObjectClass, IsCompatibleMode, UniGenCFlag):
def CreateHFile(BaseName, UniObjectClass, IsCompatibleMode, UniGenCFlag):
HFile = WriteLine('', CreateHFileContent(BaseName, UniObjectClass, IsCompatibleMode, UniGenCFlag))
return HFile
return "".join(HFile)
## Create a buffer to store all items in an array
#
@ -211,7 +211,7 @@ def CreateArrayItem(Array, Width = 16):
MaxLength = Width
Index = 0
Line = ' '
ArrayItem = ''
ArrayItem = []
for Item in Array:
if Index < MaxLength:
@ -223,7 +223,7 @@ def CreateArrayItem(Array, Width = 16):
Index = 1
ArrayItem = Write(ArrayItem, Line.rstrip())
return ArrayItem
return "".join(ArrayItem)
## CreateCFileStringValue
#
@ -238,7 +238,7 @@ def CreateCFileStringValue(Value):
Value = [StringBlockType] + Value
Str = WriteLine('', CreateArrayItem(Value))
return Str
return "".join(Str)
## GetFilteredLanguage
#
@ -440,7 +440,7 @@ def CreateCFileContent(BaseName, UniObjectClass, IsCompatibleMode, UniBinBuffer,
#
AllStr = Write(AllStr, Str)
return AllStr
return "".join(AllStr)
## Create end of .c file
#
@ -467,7 +467,7 @@ def CreateCFile(BaseName, UniObjectClass, IsCompatibleMode, FilterInfo):
CFile = ''
CFile = WriteLine(CFile, CreateCFileContent(BaseName, UniObjectClass, IsCompatibleMode, None, FilterInfo))
CFile = WriteLine(CFile, CreateCFileEnd())
return CFile
return "".join(CFile)
## GetFileList
#
@ -574,13 +574,30 @@ def GetStringFiles(UniFilList, SourceFileList, IncludeList, IncludePathList, Ski
# Write an item
#
def Write(Target, Item):
return ''.join([Target, Item])
if isinstance(Target,str):
Target = [Target]
if not Target:
Target = []
if isinstance(Item,list):
Target.extend(Item)
else:
Target.append(Item)
return Target
#
# Write an item with a break line
#
def WriteLine(Target, Item):
return ''.join([Target, Item, '\n'])
if isinstance(Target,str):
Target = [Target]
if not Target:
Target = []
if isinstance(Item, list):
Target.extend(Item)
else:
Target.append(Item)
Target.append('\n')
return Target
# This acts like the main() function for the script, unless it is 'import'ed into another
# script.