Configuration Reference

Configuration Reference¶

This page documents all configuration types and their defaults across all languages.

Span¶

Byte and line/column range in source code.

Represents both byte offsets (for slicing) and human-readable line/column positions (for display and diagnostics).

Field	Type	Default	Description
`start_byte`	`int`	—	Start byte
`end_byte`	`int`	—	End byte
`start_line`	`int`	—	Start line
`start_column`	`int`	—	Start column
`end_line`	`int`	—	End line
`end_column`	`int`	—	End column

ProcessResult¶

Complete analysis result from processing a source file.

Contains metrics, structural analysis, imports/exports, comments, docstrings, symbols, diagnostics, and optionally chunked code segments. Fields are populated based on the crate.ProcessConfig flags.

Field	Type	Default	Description
`language`	`str`	—	Language
`metrics`	`FileMetrics`	—	Metrics (file metrics)
`structure`	`list[StructureItem]`	`[]`	Structure
`imports`	`list[ImportInfo]`	`[]`	Imports
`exports`	`list[ExportInfo]`	`[]`	Exports
`comments`	`list[CommentInfo]`	`[]`	Comments
`docstrings`	`list[DocstringInfo]`	`[]`	Docstrings
`symbols`	`list[SymbolInfo]`	`[]`	Symbols
`diagnostics`	`list[Diagnostic]`	`[]`	Diagnostics
`chunks`	`list[CodeChunk]`	`[]`	Text chunks for chunking/embedding

FileMetrics¶

Aggregate metrics for a source file.

Field	Type	Default	Description
`total_lines`	`int`	—	Total lines
`code_lines`	`int`	—	Code lines
`comment_lines`	`int`	—	Comment lines
`blank_lines`	`int`	—	Blank lines
`total_bytes`	`int`	—	Total bytes
`node_count`	`int`	—	Number of nodes
`error_count`	`int`	—	Number of errors
`max_depth`	`int`	—	Maximum depth

StructureItem¶

A structural item (function, class, struct, etc.) in source code.

Field	Type	Default	Description
`kind`	`StructureKind`	`StructureKind.FUNCTION`	Kind (structure kind)
`name`	`str \| None`	`None`	The name
`visibility`	`str \| None`	`None`	Visibility
`span`	`Span`	—	Span (span)
`children`	`list[StructureItem]`	`[]`	Children
`decorators`	`list[str]`	`[]`	Decorators
`doc_comment`	`str \| None`	`None`	Doc comment
`signature`	`str \| None`	`None`	Signature
`body_span`	`Span \| None`	`None`	Body span (span)

CommentInfo¶

A comment extracted from source code.

Field	Type	Default	Description
`text`	`str`	—	Text
`kind`	`CommentKind`	`CommentKind.LINE`	Kind (comment kind)
`span`	`Span`	—	Span (span)
`associated_node`	`str \| None`	`None`	Associated node

DocstringInfo¶

A docstring extracted from source code.

Field	Type	Default	Description
`text`	`str`	—	Text
`format`	`DocstringFormat`	`DocstringFormat.PYTHON_TRIPLE_QUOTE`	Format (docstring format)
`span`	`Span`	—	Span (span)
`associated_item`	`str \| None`	`None`	Associated item
`parsed_sections`	`list[DocSection]`	`[]`	Parsed sections

DocSection¶

A section within a docstring (e.g., Args, Returns, Raises).

Field	Type	Default	Description
`kind`	`str`	—	Kind
`name`	`str \| None`	`None`	The name
`description`	`str`	—	Human-readable description

ImportInfo¶

An import statement extracted from source code.

Field	Type	Default	Description
`source`	`str`	—	Source
`items`	`list[str]`	`[]`	Items
`alias`	`str \| None`	`None`	Alias
`is_wildcard`	`bool`	—	Whether wildcard
`span`	`Span`	—	Span (span)

ExportInfo¶

An export statement extracted from source code.

Field	Type	Default	Description
`name`	`str`	—	The name
`kind`	`ExportKind`	`ExportKind.NAMED`	Kind (export kind)
`span`	`Span`	—	Span (span)

SymbolInfo¶

A symbol (variable, function, type, etc.) extracted from source code.

Field	Type	Default	Description
`name`	`str`	—	The name
`kind`	`SymbolKind`	`SymbolKind.VARIABLE`	Kind (symbol kind)
`span`	`Span`	—	Span (span)
`type_annotation`	`str \| None`	`None`	Type annotation
`doc`	`str \| None`	`None`	Doc

Diagnostic¶

A diagnostic (syntax error, missing node, etc.) from parsing.

Field	Type	Default	Description
`message`	`str`	—	Message
`severity`	`DiagnosticSeverity`	`DiagnosticSeverity.ERROR`	Severity (diagnostic severity)
`span`	`Span`	—	Span (span)

CodeChunk¶

A chunk of source code with rich metadata.

Field	Type	Default	Description
`content`	`str`	—	The extracted text content
`start_byte`	`int`	—	Start byte
`end_byte`	`int`	—	End byte
`start_line`	`int`	—	Start line
`end_line`	`int`	—	End line
`metadata`	`ChunkContext`	—	Document metadata

ChunkContext¶

Metadata for a single chunk of source code.

Field	Type	Default	Description
`language`	`str`	—	Language
`chunk_index`	`int`	—	Chunk index
`total_chunks`	`int`	—	Total chunks
`node_types`	`list[str]`	`[]`	Node types
`context_path`	`list[str]`	`[]`	Context path
`symbols_defined`	`list[str]`	`[]`	Symbols defined
`comments`	`list[CommentInfo]`	`[]`	Comments
`docstrings`	`list[DocstringInfo]`	`[]`	Docstrings
`has_error_nodes`	`bool`	—	Whether error nodes

PackConfig¶

Configuration for the tree-sitter language pack.

Controls cache directory and which languages to pre-download. Can be loaded from a TOML file, constructed programmatically, or passed as a dict/object from language bindings.

Field	Type	Default	Description
`cache_dir`	`str \| None`	`None`	Override default cache directory. Default: `~/.cache/tree-sitter-language-pack/v{version}/libs/`
`languages`	`list[str] \| None`	`[]`	Languages to pre-download on init. Each entry is a language name (e.g. `"python"`, `"rust"`).
`groups`	`list[str] \| None`	`[]`	Language groups to pre-download (e.g. `"web"`, `"systems"`, `"scripting"`).

ProcessConfig¶

Configuration for the process() function.

Controls which analysis features are enabled and whether chunking is performed.

Field	Type	Default	Description
`language`	`str`	—	Language name (required).
`structure`	`bool`	`True`	Extract structural items (functions, classes, etc.). Default: true.
`imports`	`bool`	`True`	Extract import statements. Default: true.
`exports`	`bool`	`True`	Extract export statements. Default: true.
`comments`	`bool`	`False`	Extract comments. Default: false.
`docstrings`	`bool`	`False`	Extract docstrings. Default: false.
`symbols`	`bool`	`False`	Extract symbol definitions. Default: false.
`diagnostics`	`bool`	`False`	Include parse diagnostics. Default: false.
`chunk_max_size`	`int \| None`	`None`	Maximum chunk size in bytes. `None` disables chunking.