Remove F# option from public API. (#2759)

* Remove F# option from public API.

* Apply suggestions from code review

Co-authored-by: dawe <[email protected]>

---------

Co-authored-by: dawe <[email protected]>

Author: nojaf

src/Fantomas.Core/CodeFormatter.fs

@@ -9,19 +9,31 @@ type CodeFormatter =
     static member ParseAsync(isSignature, source) : Async<(ParsedInput * string list) array> =
         CodeFormatterImpl.getSourceText source |> CodeFormatterImpl.parse isSignature
 
-    static member FormatASTAsync(ast: ParsedInput, ?source, ?config) : Async<FormatResult> =
-        let sourceText = Option.map CodeFormatterImpl.getSourceText source
-        let config = Option.defaultValue FormatConfig.Default config
+    static member FormatASTAsync(ast: ParsedInput) : Async<FormatResult> =
+        CodeFormatterImpl.formatAST ast None FormatConfig.Default None |> async.Return
+
+    static member FormatASTAsync(ast: ParsedInput, config) : Async<FormatResult> =
+        CodeFormatterImpl.formatAST ast None config None |> async.Return
+
+    static member FormatASTAsync(ast: ParsedInput, source) : Async<FormatResult> =
+        let sourceText = Some(CodeFormatterImpl.getSourceText source)
+
+        CodeFormatterImpl.formatAST ast sourceText FormatConfig.Default None
+        |> async.Return
 
+    static member FormatASTAsync(ast: ParsedInput, source, config) : Async<FormatResult> =
+        let sourceText = Some(CodeFormatterImpl.getSourceText source)
         CodeFormatterImpl.formatAST ast sourceText config None |> async.Return
 
     static member FormatDocumentAsync(isSignature, source, ?config, ?cursor: Position) =
         let config = Option.defaultValue FormatConfig.Default config
         CodeFormatterImpl.formatDocument config isSignature (CodeFormatterImpl.getSourceText source) cursor
 
-    static member FormatSelectionAsync(isSignature, source, selection, config) =
-        let config = Option.defaultValue FormatConfig.Default config
+    static member FormatSelectionAsync(isSignature, source, selection) =
+        CodeFormatterImpl.getSourceText source
+        |> Selection.formatSelection FormatConfig.Default isSignature selection
 
+    static member FormatSelectionAsync(isSignature, source, selection, config) =
         CodeFormatterImpl.getSourceText source
         |> Selection.formatSelection config isSignature selection
 
@@ -35,7 +47,6 @@ type CodeFormatter =
 
     static member MakePosition(line, column) = Position.mkPos line column
 
-    [<Experimental "Only for local development">]
     static member ParseOakAsync(isSignature: bool, source: string) : Async<(Oak * string list) array> =
         async {
             let sourceText = CodeFormatterImpl.getSourceText source

src/Fantomas.Core/CodeFormatter.fsi

@@ -9,8 +9,17 @@ type CodeFormatter =
     /// Parse a source string using given config
     static member ParseAsync: isSignature: bool * source: string -> Async<(ParsedInput * string list) array>
 
-    /// Format an abstract syntax tree using an optional source for trivia processing
-    static member FormatASTAsync: ast: ParsedInput * ?source: string * ?config: FormatConfig -> Async<FormatResult>
+    /// Format an abstract syntax tree
+    static member FormatASTAsync: ast: ParsedInput -> Async<FormatResult>
+
+    /// Format an abstract syntax tree using a given config
+    static member FormatASTAsync: ast: ParsedInput * config: FormatConfig -> Async<FormatResult>
+
+    /// Format an abstract syntax tree with the original source for trivia processing
+    static member FormatASTAsync: ast: ParsedInput * source: string -> Async<FormatResult>
+
+    /// Format an abstract syntax tree with the original source for trivia processing using a given config
+    static member FormatASTAsync: ast: ParsedInput * source: string * config: FormatConfig -> Async<FormatResult>
 
     /// <summary>
     /// Format a source string using an optional config.
@@ -22,10 +31,14 @@ type CodeFormatter =
     static member FormatDocumentAsync:
         isSignature: bool * source: string * ?config: FormatConfig * ?cursor: pos -> Async<FormatResult>
 
+    /// Format a part of a source string and return the (formatted) selected part only.
+    /// Beware that the range argument is inclusive. The closest expression inside the selection will be formatted if possible.
+    static member FormatSelectionAsync: isSignature: bool * source: string * selection: range -> Async<string * range>
+
     /// Format a part of source string using given config, and return the (formatted) selected part only.
     /// Beware that the range argument is inclusive. The closest expression inside the selection will be formatted if possible.
     static member FormatSelectionAsync:
-        isSignature: bool * source: string * selection: range * ?config: FormatConfig -> Async<string * range>
+        isSignature: bool * source: string * selection: range * config: FormatConfig -> Async<string * range>
 
     /// Check whether an input string is invalid in F# by attempting to parse the code.
     static member IsValidFSharpCodeAsync: isSignature: bool * source: string -> Async<bool>