mapper

func (*Mapper) ApplyEdits ¶

func (m *Mapper) ApplyEdits(edits []protocol.TextEdit) ([]byte, error)

ApplyEdits returns the mapped content with the edits applied. Edits must not overlap; they may arrive in any order. Positions are resolved from LSP (UTF-16) coordinates via the mapper, and later edits apply first so earlier offsets stay valid.

func (*Mapper) GetLSPEndPosition ¶

func (m *Mapper) GetLSPEndPosition() protocol.Position

GetLSPEndPosition returns the position immediately after the last character of the document: the last line (0-based) at the UTF-16 length of its content. A document ending with a newline has an empty last line.

func (*Mapper) LSPPosToParserPosition ¶

func (m *Mapper) LSPPosToParserPosition(pos protocol.Position) (syntax.Position, error)

LSPPosToParserPosition converts an LSP position (0-based line, UTF-16 code-unit column) to a parser position (1-based line, rune-based column).

Client positions are hints, not facts: they race with edits, so a column past the line end clamps to the line end instead of failing. Only a line past the document is an error — there is nothing to clamp to.

func (*Mapper) OffsetToLSPPosition ¶

func (m *Mapper) OffsetToLSPPosition(offset int) (protocol.Position, error)

OffsetToLSPPosition converts a byte offset in the mapped content to an LSP position (0-based line, UTF-16 code-unit column).