Enum ast_grep_napi::FrontEndLanguage

pub enum FrontEndLanguage {
    Html,
    JavaScript,
    Tsx,
    TypeScript,
}

Variants

Html

JavaScript

Tsx

TypeScript

Trait Implementations

impl Clone for FrontEndLanguage

fn clone(&self) -> FrontEndLanguage

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl FromNapiValue for FrontEndLanguage

unsafe fn from_napi_value(env: napi_env, napi_val: napi_value) -> Result<Self>

Safety

fn from_unknown(value: JsUnknown) -> Result<Self, Error>

impl Language for FrontEndLanguage

fn get_ts_language(&self) -> TSLanguage

tree sitter language to parse the source

fn from_path<P>(_path: P) -> Option<Self>where
    P: AsRef<Path>,

Return the file language from path. Return None if the file type is not supported.

fn ast_grep<S>(&self, source: S) -> AstGrep<Self>where
    S: AsRef<str>,

Create an AstGrep instance for the language

fn skippable_kind_ids(&self) -> &'static [u16]

ignore trivial tokens in language matching

fn pre_process_pattern(&self, query: &'q str) -> Cow<'q, str>

normalize pattern code before matching e.g. remove expression_statement, or prefer parsing {} to object over block

fn meta_var_char(&self) -> char

Configure meta variable special character By default $ is the metavar char, but in PHP it can be #

fn expando_char(&self) -> char

Some language does not accept $ as the leading char for identifiers. We need to change $ to other char at run-time to make parser happy, thus the name expando. By default this is the same as meta_var char so replacement is done at runtime.

fn extract_meta_var(&self, source: &str) -> Option<MetaVariable>

extract MetaVariable from a given source string At runtime we need to use expand_char

impl ToNapiValue for FrontEndLanguage

unsafe fn to_napi_value(env: napi_env, val: Self) -> Result<napi_value>

Safety

impl TypeName for FrontEndLanguage

fn type_name() -> &'static str

fn value_type() -> ValueType

impl ValidateNapiValue for FrontEndLanguage

unsafe fn validate(env: napi_env, napi_val: napi_value) -> Result<napi_value>

Safety

impl Copy for FrontEndLanguage