[−][src]Crate garando_pos

The source positions and related helper functions

Note

This API is completely unstable and subject to change.

pub use crate::hygiene::ExpnFormat;

pub use crate::hygiene::ExpnInfo;

pub use crate::hygiene::NameAndSpan;

pub use crate::hygiene::SyntaxContext;

hygiene	Machinery for hygienic macros, inspired by the MTWT[1] paper.
symbol	An "interner" is a data structure that associates values with usize tags and allows bidirectional lookup; i.e. given a value, one can easily find the type, and vice versa.

BytePos	A byte offset. Keep this small (currently 32-bits), as AST contains a lot of them.
CharPos	A character offset. Because of multibyte utf8 characters, a byte offset is not equivalent to a character offset. The CodeMap will convert BytePos values to CharPos values as necessary.
DistinctSources
FileLines
FileMap	A single source in the CodeMap.
FileMapAndBytePos
FileMapAndLine
LineInfo
Loc	A source code location used for error reporting
LocWithOpt	A source code location used as the result of lookup_char_pos_adj
MacroBacktrace
MalformedCodemapPositions
MultiByteChar	Identifies an offset of a multi-byte character in a FileMap
MultiSpan	A collection of spans. Spans have two orthogonal attributes:
Span	Spans represent a region of code, used for error reporting. Positions in spans are absolute positions from the beginning of the codemap, not positions relative to FileMaps. Methods on the CodeMap can be used to relate spans back to the original source. You must be careful if the span crosses more than one file - you will not be able to use many of the functions on spans in codemap and you cannot assume that the length of the span = hi - lo; there may be space in the BytePos range between files.
SpanLabel

SpanLinesError
SpanSnippetError

FileLinesResult
FileName