Struct LanguageParser 

pub struct LanguageParser { /* private fields */ }

A generic language parser built from a tree-sitter grammar.

This struct is the shared implementation behind all language parsers. Each language constructs one with its specific grammar, node types, tags query, and config.

Implementations

impl LanguageParser

pub fn from_language( protocol_name: &str, extensions: Vec<&'static str>, language: Language, node_types_json: &[u8], tags_query: Option<&'static str>, walker_config: WalkerConfig, ) -> Result<Self, ParseError>

Create a new language parser from a pre-constructed Language.

tags_query is the grammar’s queries/tags.scm content, usually sourced from panproto_grammars::Grammar::tags_query; pass None if the grammar does not ship one.

Errors

Returns ParseError if theory extraction from node_types_json fails, or if the grammar’s tags query fails to compile.

pub fn set_tags_override( &mut self, override_query: Option<String>, ) -> Result<(), ParseError>

Install a project-level tags-query override.

The override string is concatenated in front of the grammar’s bundled tags.scm when the detector is rebuilt. Tree-sitter unions all patterns, so overrides augment the defaults without replacing them. Pass None to clear an existing override.

Typical source: panproto.toml’s [parse.tags.<lang>] path = "...".

Errors

Returns ParseError::ScopeQueryCompile if the combined query fails to compile against this language.

Trait Implementations

impl AstParser for LanguageParser

fn protocol_name(&self) -> &str

The panproto protocol name (e.g. "typescript", "python").

fn parse(&self, source: &[u8], file_path: &str) -> Result<Schema, ParseError>

Parse source code into a full-AST Schema.

fn emit(&self, schema: &Schema) -> Result<Vec<u8>, ParseError>

Emit a Schema back to source code bytes.

fn supported_extensions(&self) -> &[&str]

File extensions this parser handles (e.g. ["ts", "tsx"]).

fn theory_meta(&self) -> &ExtractedTheoryMeta

The auto-derived theory metadata for this language.