Crate js_source_scopes

source · [−]
Expand description

JS Source Scopes

Build Status codecov

This crate provides functionality for extracting and processing scope information from JavaScript source files, and resolving that scope via SourceMaps.

Features

  • Extracting scopes from source text using extract_scope_names
  • Fast lookup of scopes by byte offset using ScopeIndex
  • Fast conversion between line/column source positions and byte offsets using SourceContext
  • Resolution of minified scope names to their original names using NameResolver

License

JS Source Scopes is licensed under the Apache-2.0 license.

Structs

NameComponent
An individual component of a ScopeName.
NameResolver
A structure for resolving ScopeNames in minified code to their original names using information contained in a DecodedMap.
ScopeIndex
An indexed structure of scopes that allows quick lookup by byte offset.
ScopeIndexError
An Error that can happen when building a ScopeIndex.
ScopeName
An abstract scope name which can consist of multiple NameComponents.
SourceContext
A structure allowing fast line/column <-> byte offset remapping.
SourceContextError
An Error that can happen when building a SourceContext.
SourcePosition
A line/column source position.

Enums

ScopeLookupResult
The Result of a Scope lookup.

Functions

extract_scope_names
Extracts function scopes from the given JS-like src.