[][src]Crate swc_common

Utilities for the swc project

Cargo features

tty-emitter

Adds default implementation of Emitter. Enabling this feature will add tty-related dependencies.

sourcemap

Adds methods to generator web sourcemap.

Re-exports

pub use self::errors::SourceMapper;
pub use self::errors::SourceMapperDyn;

Modules

comments
errors
hygiene

Machinery for hygienic macros, inspired by the MTWT[1] paper.

input
iter
macros
pass
serializer
sync

This module defines types which are thread safe if cfg!(feature = "concurrent") is true.

util

Macros

add_bitflags

rustfmt-friendly version of bitblags!.

chain
impl_stable_hash_via_hash

Structs

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 SourceMap will convert BytePos values to CharPos values as necessary.

FileLines
FilePathMapping
Globals
LineCol

Used to create a .map file.

Loc

A source code location used for error reporting

LocWithOpt

A source code location used as the result of lookup_char_pos_adj

Mark

A mark is a unique id associated with a macro expansion.

MultiSpan

A collection of spans. Spans have two orthogonal attributes:

SourceFile

A single source in the SourceMap.

SourceFileAndBytePos
SourceFileAndLine
SourceMap
Span

Spans represent a region of code, used for error reporting. Positions in spans are absolute positions from the beginning of the source_map, not positions relative to SourceFiles. Methods on the SourceMap 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 source_map and you cannot assume that the length of the span = hi - lo; there may be space in the BytePos range between files.

SyntaxContext

A SyntaxContext represents a chain of macro expansions (represented by marks).

Enums

FileName

Differentiates between real files and common virtual files.

SpanLinesError
SpanSnippetError

Constants

DUMMY_SP

Dummy span, both position and length are zero, syntax context is zero as well.

NO_EXPANSION

Statics

GLOBALS

Traits

AstNode

A trait for ast nodes.

FileLoader

An abstraction over the fs operations used by the Parser.

Spanned

Derive

Attribute Macros

ast_node

Alias for #[derive(Spanned, Fold, Clone, Debug, PartialEq)] for a struct and #[derive(Spanned, Fold, Clone, Debug, PartialEq, FromVariant)] for an enum.

Derive Macros

DeserializeEnum
FromVariant
Spanned