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mod class_member;
use std::{borrow::Cow, fmt::Debug};
use crate::{to_string_bracketed, tsx_keywords};
pub use class_member::*;
use iterator_endiate::EndiateIteratorExt;
use super::{ASTNode, GenericTypeConstraint, Span, TSXToken, TypeId, TypeReference, VariableId};
use crate::{
extensions::decorators::Decorated, visiting::Visitable, ExpressionOrStatementPosition, Keyword,
ParseResult, ParseSettings, TSXKeyword, VisitSettings,
};
use tokenizer_lib::{Token, TokenReader};
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ClassDeclaration<T: ExpressionOrStatementPosition> {
pub class_keyword: Keyword<tsx_keywords::Class>,
pub name: T::Name,
pub type_parameters: Option<Vec<GenericTypeConstraint>>,
pub extends: Option<TypeReference>,
pub members: Vec<Decorated<ClassMember>>,
pub type_id: TypeId,
pub variable_id: VariableId,
pub position: Span,
}
#[cfg(feature = "self-rust-tokenize")]
impl<T: ExpressionOrStatementPosition> self_rust_tokenize::SelfRustTokenize
for ClassDeclaration<T>
{
fn append_to_token_stream(
&self,
_token_stream: &mut self_rust_tokenize::proc_macro2::TokenStream,
) {
todo!()
}
}
impl<U: ExpressionOrStatementPosition + Debug + PartialEq + Eq + Clone + 'static> ASTNode
for ClassDeclaration<U>
{
fn from_reader(
reader: &mut impl TokenReader<TSXToken, Span>,
state: &mut crate::ParsingState,
settings: &ParseSettings,
) -> ParseResult<Self> {
let class_keyword_pos = reader.expect_next(TSXToken::Keyword(TSXKeyword::Class))?;
let class_keyword = Keyword::new(class_keyword_pos);
Self::from_reader_sub_class_keyword(reader, state, settings, class_keyword)
}
fn to_string_from_buffer<T: source_map::ToString>(
&self,
buf: &mut T,
settings: &crate::ToStringSettingsAndData,
depth: u8,
) {
self.to_string_from_buffer(buf, settings, depth)
}
fn get_position(&self) -> Cow<Span> {
Cow::Borrowed(&self.position)
}
}
impl<U: ExpressionOrStatementPosition> ClassDeclaration<U> {
pub(crate) fn from_reader_sub_class_keyword(
reader: &mut impl TokenReader<TSXToken, Span>,
state: &mut crate::ParsingState,
settings: &ParseSettings,
class_keyword: Keyword<tsx_keywords::Class>,
) -> ParseResult<Self> {
let (name, type_parameters) = U::from_reader(reader, state, settings)?;
let extends = match reader.peek() {
Some(Token(TSXToken::Keyword(TSXKeyword::Extends), _)) => {
reader.next();
Some(TypeReference::from_reader(reader, state, settings)?)
}
_ => None,
};
reader.expect_next(TSXToken::OpenBrace)?;
let mut members: Vec<Decorated<ClassMember>> = Vec::new();
loop {
if let Some(Token(TSXToken::CloseBrace, _)) = reader.peek() {
break;
}
let value = Decorated::<ClassMember>::from_reader(reader, state, settings)?;
members.push(value);
if let Some(Token(TSXToken::SemiColon, _)) = reader.peek() {
reader.next();
}
}
let position = class_keyword.1.union(&reader.expect_next(TSXToken::CloseBrace)?);
Ok(ClassDeclaration {
class_keyword,
name,
type_id: TypeId::new(),
variable_id: VariableId::new(),
extends,
members,
type_parameters,
position,
})
}
pub(crate) fn to_string_from_buffer<T: source_map::ToString>(
&self,
buf: &mut T,
settings: &crate::ToStringSettingsAndData,
depth: u8,
) {
buf.push_str("class ");
buf.push_str(U::as_option_str(&self.name).unwrap_or_default());
if let Some(type_parameters) = &self.type_parameters {
to_string_bracketed(type_parameters, ('<', '>'), buf, settings, depth);
}
if let Some(extends) = &self.extends {
buf.push_str(" extends ");
extends.to_string_from_buffer(buf, settings, depth);
}
settings.0.add_gap(buf);
buf.push('{');
for (at_end, member) in self.members.iter().endiate() {
if settings.0.pretty {
buf.push_new_line();
settings.0.add_indent(depth + 1, buf);
}
member.to_string_from_buffer(buf, settings, depth);
if !settings.0.pretty && !at_end {
buf.push(';');
}
}
if settings.0.pretty && !self.members.is_empty() {
buf.push_new_line();
}
buf.push('}');
}
pub fn get_variable_id(&self) -> VariableId {
self.variable_id
}
}
impl<T: ExpressionOrStatementPosition> Visitable for ClassDeclaration<T> {
fn visit<TData>(
&self,
_visitors: &mut (impl crate::VisitorReceiver<TData> + ?Sized),
_data: &mut TData,
_settings: &VisitSettings,
_functions: &mut crate::extractor::ExtractedFunctions,
_chain: &mut temporary_annex::Annex<crate::Chain>,
) {
}
fn visit_mut<TData>(
&mut self,
_visitors: &mut (impl crate::VisitorMutReceiver<TData> + ?Sized),
_data: &mut TData,
_settings: &VisitSettings,
_functions: &mut crate::extractor::ExtractedFunctions,
_chain: &mut temporary_annex::Annex<crate::Chain>,
) {
}
}