Fluent Syntax 0.9

• Flatten complex reference expressions. (#221)

  Reference expressions which may take complex forms, such as a reference
  to a message's attribute, or a parameterized reference to an attribute of
  a term, are now stored in a simplified manner. Instead of nesting
  multiple expression nodes (e.g. CallExpression of an
  AttributeExpression of a TermReference), all information is available
  directly in the reference expression.

  This change affects the following AST nodes:

  • MessageReference now has an optional attribute field,
  • FunctionReference now has a required arguments field,
  • TermReference now has an optional attribute field and an optional
    arguments field.

• Remove VariantLists. (#204)

  The VariantLists and the VariantExpression syntax and AST nodes were
  deprecated in Syntax 0.9 and have now been removed.

• Rename StringLiteral.raw to value. (#243)

  StringLiteral.value contains the exact contents of the string literal,
  character-for-character. Escape sequences are stored verbatim without
  processing.

  Implementations may decide how to process the raw value. When they do,
  however, they must comply with the behavior specified in Literal.parse.

• Rename args to arguments.

  The args field of MessageReference, TermReference,
  FunctionReference, and Annotation has been renamed to arguments.