Raised when one or more conditional compilation define combinations produce invalid syntax trees.

Mutable doubly-linked list of WriterEvents. Supports O(1) append, insert, remove, and truncation.

A node in the mutable doubly-linked list of WriterEvents. We use [] instead of option for Prev/Next links because this is a hot path — every formatting operation appends nodes. Option would allocate a Some wrapper on every link assignment, adding GC pressure for no functional benefit. The null checks are contained within EventList's methods; callers work with non-null EventNode references returned by Append/InsertAfter/InsertBefore.

Raised when Fantomas encounters a problem during formatting.

Raised when the F# parser produces errors for source code without conditional directives.

append only collection optimized for quick append of block of data and query operations data - list of blocks in reverse order

Represents a single event emitted during the code formatting process. The sequence of writer events captures how the formatter produces its output.