misc: add clang-format file

.clang-format

@@ -0,0 +1,96 @@
+# libuv .clang-format configuration
+# Based on Google C/C++ Style Guide with libuv-specific adaptations
+
+BasedOnStyle: Google
+
+# Language and standard
+Language: Cpp
+
+# Indentation and spacing (2 spaces, no tabs as per CONTRIBUTING.md)
+IndentWidth: 2
+TabWidth: 2
+UseTab: Never
+ContinuationIndentWidth: 4
+IndentCaseLabels: false
+
+# Line length (80 characters as per CONTRIBUTING.md)
+ColumnLimit: 80
+
+# Alignment and breaking
+AlignAfterOpenBracket: Align
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AlignConsecutiveMacros: true
+AlignEscapedNewlines: Right
+AlignOperands: true
+AlignTrailingComments: true
+AllowAllArgumentsOnNextLine: false
+AllowAllConstructorInitializersOnNextLine: false
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: None
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+
+# Breaking and wrapping
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: false
+BinPackArguments: false
+BinPackParameters: false
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Attach
+Cpp11BracedListStyle: true
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializers: BeforeColon
+BreakStringLiterals: true
+
+# Spacing
+SpaceAfterCStyleCast: true
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeParens: ControlStatements
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 2
+SpacesInAngles: false
+SpacesInCStyleCastParentheses: false
+SpacesInContainerLiterals: true
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+
+# Pointers and references
+PointerAlignment: Left
+DerivePointerAlignment: false
+
+# Comments
+ReflowComments: true
+
+# Includes
+IncludeBlocks: Preserve
+SortIncludes: false
+
+# Penalties for breaking (to control formatting decisions)
+PenaltyBreakAssignment: 2
+PenaltyBreakBeforeFirstCallParameter: 1
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 200
+
+# Macros and preprocessor
+IndentPPDirectives: AfterHash
+MacroBlockBegin: ''
+MacroBlockEnd: ''
+
+# Enum and macro formatting
+AllowShortEnumsOnASingleLine: false
+SpaceBeforeSquareBrackets: false
+
+# Other formatting options
+KeepEmptyLinesAtTheStartOfBlocks: false
+MaxEmptyLinesToKeep: 2
+FixNamespaceComments: false
+
+# Function spacing: requiring 2 newlines before functions is not supported by clang-format tool automatically
+SeparateDefinitionBlocks: Leave

include/uv.h

@@ -206,6 +206,7 @@ typedef enum {
   UV_HANDLE_TYPE_MAX
 } uv_handle_type;
 
+/* clang-format off */
 typedef enum {
   UV_UNKNOWN_REQ = 0,
 #define XX(uc, lc) UV_##uc,
@@ -214,6 +215,7 @@ typedef enum {
   UV_REQ_TYPE_PRIVATE
   UV_REQ_TYPE_MAX
 } uv_req_type;
+/* clang-format on */
 
 
 /* Handle types. */