Sourced from github.com/apple/swift-syntax's releases.

601.0.0

New APIs

• SameTypeRequirementSyntax has a new RightType nested type.

  • Description: The Swift parser can now parse values as types in certain situations, so the new type reflects the possibility of the argument being either an ExprSyntax or a TypeSyntax.
  • Pull Request: swiftlang/swift-syntax#2859

• SameTypeRequirementSyntax has a new LeftType nested type.

  • Description: The Swift parser can now parse values as types in certain situations, so the new type reflects the possibility of the argument being either an ExprSyntax or a TypeSyntax.
  • Pull Request: swiftlang/swift-syntax#2859

• GenericArgumentSynax has a new Argument nested type.

  • Description: The Swift parser can now parse values as types in certain situations, so the new type reflects the possibility of the argument being either an ExprSyntax or a TypeSyntax.
  • Pull Request: swiftlang/swift-syntax#2859

• GenericParameterSyntax now has a new specifier property.

  • Description: With the introduction of value generics, generic parameters can now be optionally preceded by either a let or an each. The specifier property captures the token representing which one was parsed.
  • Pull Request: swiftlang/swift-syntax#2785

• IntegerLiteralExprSyntax and FloatLiteralExprSyntax now have a computed representedLiteralValue property.

  • Description: Allows retrieving the represented literal value when valid.
  • Issue: apple/swift-syntax#405
  • Pull Request: apple/swift-syntax#2605

• SyntaxProtocol now has a method ancestorOrSelf.

  • Description: Returns the node or the first ancestor that satisfies condition.
  • Pull Request: swiftlang/swift-syntax#2696

• Error protocol now has an asDiagnostics(at:) method.

  • Description: This method translates an error into one or more diagnostics, recognizing DiagnosticsError and DiagnosticMessage instances or providing its own Diagnostic as needed.
  • Pull Request: swiftlang/swift-syntax#1816

• Added a new library SwiftIfConfig.

  • Description: This new library provides facilities for evaluating #if conditions and determining which regions of a syntax tree are active according to a given build configuration.
  • Pull Request: swiftlang/swift-syntax#1816

• SwiftBasicFormat adds a method indented(by:) to all syntax node types.

  • Description: This method indents a node’s contents using a provided piece of Trivia, optionally including the first line.
  • Pull Request: swiftlang/swift-syntax#2843

• Parser.ExperimentalFeatures has a new init?(name: String) initializer.

  • Description: This initializer returns the Parser.ExperimentalFeatures value that matches the experimental parser feature with the given name. The name must be spelled the same way as it is when passed to the compiler using the -enable-experimental-feature flag.
  • Pull Request: swiftlang/swift-syntax#2895

API Behavior Changes

• SyntaxProtocol.trimmed detaches the node
  • Description: Getting a trimmed version of a node detaches it from its parent. Having the trimmed node be attached to a parent was not intuitive because eg. printing the parent node would have the trimmed trivia missing, most likely forming invalid Swift code.
  • Pull Request: apple/swift-syntax#2689

... (truncated)

• 1103c45 Merge pull request #2976 from ahoppen/6.1/disable-parameter-validation
• ced59cc Do not validate that all parameters have documentation
• 8ceb172 Merge pull request #2921 from rintaro/6.1-genricargument-compat-init
• 245b516 [Compat] Add GenericArgumentSyntax comatibility initializer
• 41bde9e Merge pull request #2914 from ahoppen/6.1/fix-example-warnings
• 287bd69 Fix build warnings in the Examples package
• 1cd3534 Merge pull request #2883 from MAJKFL/add-swiftIfConfig-to-swiftLexicalLookup
• 334fd59 Use ConfiguredRegions in LookupConfig for handling #if clauses.
• 39a57d4 Merge pull request #2864 from roopekv/code-gen-keep-whitespace-after-comma-if...
• 36f57a4 Merge pull request #2891 from MAJKFL/sanitize-dollar-identifier
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