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use std::sync::Arc;
use {
SyntaxNode, SyntaxRoot, TreeRoot, AstNode,
SyntaxKind::*,
};
#[derive(Debug, Clone, Copy)]
pub struct File<R: TreeRoot = Arc<SyntaxRoot>> {
syntax: SyntaxNode<R>,
}
impl<R: TreeRoot> AstNode<R> for File<R> {
fn cast(syntax: SyntaxNode<R>) -> Option<Self> {
match syntax.kind() {
FILE => Some(File { syntax }),
_ => None,
}
}
fn syntax(&self) -> &SyntaxNode<R> { &self.syntax }
}
impl<R: TreeRoot> File<R> {
pub fn functions<'a>(&'a self) -> impl Iterator<Item = Function<R>> + 'a {
self.syntax()
.children()
.filter_map(Function::cast)
}
}
#[derive(Debug, Clone, Copy)]
pub struct Function<R: TreeRoot = Arc<SyntaxRoot>> {
syntax: SyntaxNode<R>,
}
impl<R: TreeRoot> AstNode<R> for Function<R> {
fn cast(syntax: SyntaxNode<R>) -> Option<Self> {
match syntax.kind() {
FUNCTION => Some(Function { syntax }),
_ => None,
}
}
fn syntax(&self) -> &SyntaxNode<R> { &self.syntax }
}
impl<R: TreeRoot> Function<R> {
pub fn name(&self) -> Option<Name<R>> {
self.syntax()
.children()
.filter_map(Name::cast)
.next()
}
}
#[derive(Debug, Clone, Copy)]
pub struct Name<R: TreeRoot = Arc<SyntaxRoot>> {
syntax: SyntaxNode<R>,
}
impl<R: TreeRoot> AstNode<R> for Name<R> {
fn cast(syntax: SyntaxNode<R>) -> Option<Self> {
match syntax.kind() {
NAME => Some(Name { syntax }),
_ => None,
}
}
fn syntax(&self) -> &SyntaxNode<R> { &self.syntax }
}
impl<R: TreeRoot> Name<R> {}
|
