bluejay_parser/ast/executable/
fragment_spread.rs

1use crate::ast::executable::TypeCondition;
2use crate::ast::try_from_tokens::TryFromTokens;
3use crate::ast::{FromTokens, IsMatch, ParseError, Tokens, VariableDirectives};
4use crate::lexical_token::{Name, PunctuatorType};
5use crate::{HasSpan, Span};
6
7#[derive(Debug)]
8pub struct FragmentSpread<'a> {
9    name: Name<'a>,
10    directives: Option<VariableDirectives<'a>>,
11    span: Span,
12}
13
14impl<'a> FromTokens<'a> for FragmentSpread<'a> {
15    #[inline]
16    fn from_tokens(tokens: &mut impl Tokens<'a>) -> Result<Self, ParseError> {
17        let ellipse_span = tokens.expect_punctuator(PunctuatorType::Ellipse)?;
18        let name = tokens.expect_name()?;
19        assert_ne!(TypeCondition::ON, name.as_ref());
20        let directives = VariableDirectives::try_from_tokens(tokens).transpose()?;
21        let span = ellipse_span.merge(name.span());
22        Ok(Self {
23            name,
24            directives,
25            span,
26        })
27    }
28}
29
30impl<'a> IsMatch<'a> for FragmentSpread<'a> {
31    #[inline]
32    fn is_match(tokens: &mut impl Tokens<'a>) -> bool {
33        tokens.peek_punctuator_matches(0, PunctuatorType::Ellipse)
34            && tokens
35                .peek_name(1)
36                .map(|n| n.as_ref() != TypeCondition::ON)
37                .unwrap_or(false)
38    }
39}
40
41impl<'a> FragmentSpread<'a> {
42    pub fn name(&self) -> &Name<'a> {
43        &self.name
44    }
45}
46
47impl<'a> bluejay_core::executable::FragmentSpread for FragmentSpread<'a> {
48    type Directives = VariableDirectives<'a>;
49
50    fn name(&self) -> &str {
51        self.name.as_ref()
52    }
53
54    fn directives(&self) -> Option<&Self::Directives> {
55        self.directives.as_ref()
56    }
57}
58
59impl<'a> HasSpan for FragmentSpread<'a> {
60    fn span(&self) -> &Span {
61        &self.span
62    }
63}
bluejay_parser/ast/executable/fragment_spread.rs

bluejay_parser/ast/executable/
fragment_spread.rs
