Fantomas.Core 8.0.0-alpha-014

• .NETStandard 2.0

  • Fantomas.FCS (>= 8.0.0-alpha-014)
  • FSharp.Core (>= 10.0.100)
  • System.Collections.Immutable (>= 10.0.6)
  • System.Diagnostics.DiagnosticSource (>= 10.0.6)
  • System.Memory (>= 4.6.3)
  • System.Runtime (>= 4.3.1)

### Changed

- Bump `StreamJsonRpc` to `2.25.29`. This clears the NuGet vulnerability warnings coming from the transitive `MessagePack` and `Nerdbank.MessagePack` dependencies. [#3393](https://github.com/fsprojects/fantomas/pull/3393)
- Breaking: `Expr.Chain` is redesigned around a head, a list of `ChainSegment` and a `ChainTerminal`. `Expr.DotLambda`, `Expr.DotIndexedGet`, `Expr.AppLongIdentAndSingleParenArg` and `Expr.NestedIndexWithoutDot` are removed, and a dotted long identifier now yields `Expr.Chain` instead of `Expr.OptVar` in expression position. See the [upgrade guide](https://fsprojects.github.io/fantomas/docs/end-users/UpgradeGuide.html) for how to migrate. [#3385](https://github.com/fsprojects/fantomas/pull/3385)
- Chains are laid out by a documented set of rules, written up in full under [Chains](https://fsprojects.github.io/fantomas/docs/contributors/Chains.html). They are a proposal for the F# style guide and may still change. A chain that fits on one line is left alone. When one has to break, only a call claims a line of its own and plain property access rides along in front of it, where a comment between the steps previously put every step on its own line. A long run of property access now wraps into balanced lines instead of overflowing the margin. [#3385](https://github.com/fsprojects/fantomas/pull/3385)
- With `fsharp_multi_line_lambda_closing_newline = false` (the default), a match lambda argument keeps `function` beside the `(` when the call is reached through a dot, matching what a call without a receiver already did. [#3385](https://github.com/fsprojects/fantomas/pull/3385)
- With `fsharp_multi_line_lambda_closing_newline = true`, a lambda argument whose opening line does not fit moves onto its own line instead of hanging its parameters under the opening parenthesis. This applies to calls with and without a receiver. [#3385](https://github.com/fsprojects/fantomas/pull/3385)
- Added `InvariantViolationException`, raised when Fantomas reaches a state its own model says is impossible. It derives from `FormatException`, carries the source range of the construct involved, and points at the issue tracker. [#3385](https://github.com/fsprojects/fantomas/pull/3385)

### Fixed

- CLI refuses to format files containing IWSAM types (warning 3535 fails output validation). [#3396](https://github.com/fsprojects/fantomas/issues/3396)
- A space was added before the parenthesis of a call inside a `_.` shorthand lambda when `fsharp_space_before_uppercase_invocation` was enabled, producing code that does not compile. [#3364](https://github.com/fsprojects/fantomas/issues/3364)