apollo_parser/parser/
language.rs

1use crate::SyntaxKind;
2
3/// A node in the immutable tree. It has other nodes and tokens as children.
4pub type SyntaxNode = rowan::SyntaxNode<GraphQLLanguage>;
5/// A leaf node in the syntax tree.
6pub type SyntaxToken = rowan::SyntaxToken<GraphQLLanguage>;
7/// A `SyntaxNode` or a `SyntaxToken`.
8pub type SyntaxElement = rowan::SyntaxElement<GraphQLLanguage>;
9/// Children of a `SyntaxNode`.
10pub type SyntaxNodeChildren = rowan::SyntaxNodeChildren<GraphQLLanguage>;
11/// A wrapper around `SyntaxNodePtr`.
12pub type SyntaxNodePtr = rowan::ast::SyntaxNodePtr<GraphQLLanguage>;
13
14/// A language implementation for use in `Rowan`.
15#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
16pub enum GraphQLLanguage {}
17
18impl rowan::Language for GraphQLLanguage {
19    type Kind = SyntaxKind;
20    fn kind_from_raw(raw: rowan::SyntaxKind) -> Self::Kind {
21        assert!(raw.0 <= (SyntaxKind::__LAST as u16));
22        unsafe { std::mem::transmute::<u16, SyntaxKind>(raw.0) }
23    }
24    fn kind_to_raw(kind: Self::Kind) -> rowan::SyntaxKind {
25        rowan::SyntaxKind(kind.into())
26    }
27}
apollo_parser/parser/language.rs

apollo_parser/parser/
language.rs
