Re-sync with internal repository (#1619)

Co-authored-by: Facebook Community Bot <[email protected]>

Author: facebook-github-bot

folly/.clang-format

@@ -0,0 +1,125 @@
+# The canary clang-format config file.
+#
+# Changes from head:
+# - AllowAllParametersOfDeclarationOnNextLine: Safe
+# - AllowShortFunctionsOnASingleLine: Safe
+# - IncludeIsMainRegex: May cause errors, as it may reorder includes.
+# - IncludeCategories: May cause errors, as it may reorder includes.
+---
+AccessModifierOffset: -1
+AlignAfterOpenBracket: AlwaysBreak
+AlignConsecutiveMacros: false
+AlignConsecutiveAssignments: false
+AlignConsecutiveBitFields: false
+AlignConsecutiveDeclarations: false
+AlignEscapedNewlines: Left
+AlignOperands: DontAlign
+AlignTrailingComments: false
+AllowAllArgumentsOnNextLine: true
+AllowAllConstructorInitializersOnNextLine: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortEnumsOnASingleLine: true
+AllowShortBlocksOnASingleLine: Never
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: Inline
+AllowShortLambdasOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: true
+AlwaysBreakTemplateDeclarations: Yes
+BinPackArguments: false
+BinPackParameters: false
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Attach
+BreakInheritanceList: BeforeColon
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializers: BeforeColon
+BreakAfterJavaFieldAnnotations: false
+BreakStringLiterals: false
+ColumnLimit: 80
+CommentPragmas: '^ IWYU pragma:'
+CompactNamespaces: false
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DeriveLineEnding: true
+DerivePointerAlignment: false
+DisableFormat: false
+FixNamespaceComments: true
+ForEachMacros:
+  - FOR_EACH
+  - FOR_EACH_R
+  - FOR_EACH_RANGE
+IncludeBlocks: Preserve
+IncludeCategories:
+  - Regex:           '^<(sodium|Python)\.h>$'
+    Priority:        3
+  - Regex:           '^<((arpa|net|netinet|sys|linux)\/)?[-_[:alnum:]]+\.h>$'
+    Priority:        1
+  - Regex:           '^<[\/-_[:alnum:]]+>$'
+    Priority:        2
+  - Regex:           '^<((bistro|caffe2|cachelib|fatal|fb303|faiss|fbmeshd|fboss|fbzmq|fizz|folly|gloo|hphp|logdevice|magma|mcrouter|openr|proxygen|quic|rsocket|scape|squangle|tensorpipe|thrift|wangle|wdt|yarpl)\/).*>$'
+    Priority:        4
+  - Regex:           '^<.*>$'
+    Priority:        3
+  - Regex:           '.*'
+    Priority:        5
+IncludeIsMainRegex: '((Test|Tests|_test|Bench|Benchmark|Performance)[0-9]*)?$'
+IndentCaseLabels: true
+IndentCaseBlocks: false
+IndentGotoLabels: true
+IndentPPDirectives: None
+IndentExternBlock: AfterExternBlock
+IndentWidth: 2
+IndentWrappedFunctionNames: false
+InsertTrailingCommas: None
+JavaScriptQuotes: Leave
+JavaScriptWrapImports: true
+KeepEmptyLinesAtTheStartOfBlocks: false
+MacroBlockBegin: ''
+MacroBlockEnd: ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCBinPackProtocolList: Auto
+ObjCBlockIndentWidth: 2
+ObjCBreakBeforeNestedBlockParam: true
+ObjCSpaceAfterProperty: false
+ObjCSpaceBeforeProtocolList: false
+PenaltyBreakAssignment: 2
+PenaltyBreakBeforeFirstCallParameter: 1
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyBreakTemplateDeclaration: 10
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 200
+PointerAlignment: Left
+ReflowComments: true
+SortIncludes: true
+SortUsingDeclarations: true
+SpaceAfterCStyleCast: false
+SpaceAfterLogicalNot: false
+SpaceAfterTemplateKeyword: true
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCpp11BracedList: false
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeParens: ControlStatements
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceInEmptyBlock: false
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles: false
+SpacesInConditionalStatement: false
+SpacesInContainerLiterals: true
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+SpaceBeforeSquareBrackets: false
+Standard: Latest
+TabWidth: 8
+UseCRLF: false
+UseTab: Never
+...

folly/io/IOBuf.cpp

@@ -476,7 +476,6 @@ unique_ptr<IOBuf> IOBuf::takeOwnership(
 
   // do not allow only user data without a freeFn
   // since we use that for folly::sizedFree
-
   DCHECK(
       !userData || (userData && freeFn) ||
       (userData && !freeFn && (option == TakeOwnershipOption::STORE_SIZE)));