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use super::super::*;
impl<'source, 'ast, 'name, 'names> Parser<'source, 'ast, 'name, 'names>
where
'name: 'ast,
{
pub(in crate::parser) fn parse_table_type(
&mut self,
in_declaration_context: bool,
) -> Result<Type<'ast>> {
let brace_location = self.current_location();
self.advance();
let mut props = self.temp_table_type_props();
let mut indexer = None;
let mut cst_items = self.cst.enabled().then(|| self.temp_cst_table_type_items());
let mut is_array = false;
while self.current.kind() != TokenKind::RightBrace {
let access = self.parse_table_access(false)?;
if self.current.kind() == TokenKind::LeftBracket {
let indexer_location = self.current_token_location();
let indexer_open = self.current_position();
if matches!(
self.peek(),
Token::QuotedString { .. } | Token::RawString { .. }
) && self.peek_nth(2).kind() == TokenKind::RightBracket
{
self.advance();
let (name, string_info, string_position) = match self.current {
Token::QuotedString { value, quote_style } => {
let location = self.current_token_location();
let string_info = self.cst.enabled().then(|| {
(
self.current_source_string(),
CstStringQuoteStyle::from(quote_style),
0,
)
});
let name = fixup_string_bytes(value);
self.advance();
(name, string_info, location.begin)
}
Token::RawString { value, block_depth } => {
let location = self.current_token_location();
let string_info = self.cst.enabled().then(|| {
(
self.current_source_string(),
CstStringQuoteStyle::QuotedRaw,
block_depth as u32,
)
});
self.advance();
(
Some(multiline_string_bytes(value)),
string_info,
location.begin,
)
}
_ => unreachable!("checked string table key"),
};
let indexer_close = if self.current.kind() == TokenKind::RightBracket {
let position = self.current_position();
self.advance();
position
} else if self.expect_match_token(
Token::RightBracket,
"]",
"[",
indexer_location,
false,
) {
self.previous_token_location().begin
} else {
Position::missing()
};
let colon = if self.current.kind() == TokenKind::Colon {
let position = self.current_position();
self.advance();
position
} else {
self.expect_and_consume(Token::Colon, "table field");
Position::missing()
};
let ty = self.parse_type_annotation()?;
if let Some(name) = name.filter(|name| !name.contains(&0)) {
props.push_back(TableTypeProp {
name: self.string_property_name(&name),
location: indexer_location,
ty,
access: access.access,
access_location: access.location,
});
let string_info =
string_info.map(|(source_string, quote_style, block_depth)| {
CstExprConstantString {
source_string,
quote_style,
block_depth,
}
});
if let Some(cst_items) = &mut cst_items {
cst_items.push_back(CstTypeTableItem {
kind: CstTypeTableItemKind::StringProperty,
indexer_open,
indexer_close,
colon,
separator: None,
separator_position: None,
string_info,
string_position,
});
}
} else {
self.report_parse_error(ParseError::new(
indexer_location,
"String literal contains malformed escape sequence or \\0",
));
}
} else {
if indexer.is_some() {
let bad_indexer_start = self.current_token_location().begin;
self.advance();
let _ = self.parse_type_annotation();
self.expect_match_token(
Token::RightBracket,
"]",
"[",
indexer_location,
false,
);
self.expect_and_consume(Token::Colon, "table field");
let _ = self.parse_type_annotation();
self.report_parse_error(ParseError::new(
Location::new(bad_indexer_start, self.previous_token_end_position()),
"Cannot have more than one table indexer",
));
} else {
self.advance();
let index_type = self.parse_type_annotation()?;
let indexer_close = if self.current.kind() == TokenKind::RightBracket {
let position = self.current_position();
self.advance();
position
} else if self.expect_match_token(
Token::RightBracket,
"]",
"[",
indexer_location,
false,
) {
self.previous_token_location().begin
} else {
Position::missing()
};
let colon = if self.current.kind() == TokenKind::Colon {
let position = self.current_position();
self.advance();
position
} else {
self.expect_and_consume(Token::Colon, "table field");
Position::missing()
};
let result_type = self.parse_type_annotation()?;
indexer = Some(self.arena.alloc_node(TableTypeIndexer {
index_type,
result_type,
location: Location::new(indexer_open, result_type.location.end),
access: access.access,
access_location: access.location,
}));
if let Some(cst_items) = &mut cst_items {
cst_items.push_back(CstTypeTableItem {
kind: CstTypeTableItemKind::Indexer,
indexer_open,
indexer_close,
colon,
separator: None,
separator_position: None,
string_info: None,
string_position: Position::zero(),
});
}
}
}
} else if props.len() == 0
&& indexer.is_none()
&& !(matches!(self.current, Token::Ident(_))
&& self.peek().kind() == TokenKind::Colon)
{
let result_type = self.parse_type_annotation()?;
is_array = true;
let number_name = self.name_number;
let parameters = self.arena.alloc_slice_fill_iter(std::iter::empty());
let index_location = Location::from_length(brace_location.begin, 0);
let index_type = self.alloc_type(
index_location,
TypeKind::Reference {
prefix: None,
prefix_location: None,
prefix_local: None,
name: number_name,
location: index_location,
name_location: index_location,
has_parameter_list: false,
parameters,
},
);
indexer = Some(self.arena.alloc_node(TableTypeIndexer {
index_type,
result_type,
location: result_type.location,
access: access.access,
access_location: access.location,
}));
break;
} else {
let (name, name_location) = match self.current {
Token::Ident(name) => {
let location = self.current_token_location();
self.advance();
(name, location)
}
_ => {
self.report_parse_error(self.table_field_name_error());
break;
}
};
let colon = if self.current.kind() == TokenKind::Colon {
let position = self.current_position();
self.advance();
position
} else {
self.expect_and_consume(Token::Colon, "table field");
Position::missing()
};
let ty = self.parse_type_annotation_with_context(in_declaration_context)?;
props.push_back(TableTypeProp {
name,
location: name_location,
ty,
access: access.access,
access_location: access.location,
});
if let Some(cst_items) = &mut cst_items {
cst_items.push_back(CstTypeTableItem {
kind: CstTypeTableItemKind::Property,
indexer_open: Position::missing(),
indexer_close: Position::missing(),
colon,
separator: None,
separator_position: None,
string_info: None,
string_position: Position::zero(),
});
}
}
if let Some(item) = cst_items
.as_mut()
.and_then(|items| items.as_mut_slice().last_mut())
{
item.separator = match self.current {
Token::Comma => Some(TableSeparator::Comma),
Token::Semicolon => Some(TableSeparator::Semicolon),
_ => None,
};
item.separator_position = item.separator.as_ref().map(|_| self.current_position());
}
if matches!(self.current, Token::Comma | Token::Semicolon) {
self.advance();
if self.current.kind() == TokenKind::RightBrace {
break;
}
} else {
break;
}
}
let end_location = self.current_token_location();
let mut end = end_location.end;
if !self.expect_match_token(Token::RightBrace, "}", "{", brace_location, true) {
end = self.previous_token_end_position();
}
let location = Location::new(brace_location.begin, end);
Ok(self.alloc_type_with_cst(
location,
TypeKind::Table {
props: self.arena.alloc_slice_copy(props.as_slice()),
indexer,
},
cst_items.map(|items| {
CstNode::TypeTable(CstTypeTable {
items: items.as_slice().to_vec(),
is_array,
})
}),
))
}
}