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use serde::ser::{Serialize, SerializeMap, SerializeSeq, Serializer};
use std::fmt;
use crate::{
api::{Language, SyntaxNode, SyntaxToken},
NodeOrToken,
};
struct SerDisplay<T>(T);
impl<T: fmt::Display> Serialize for SerDisplay<T> {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.collect_str(&self.0)
}
}
struct DisplayDebug<T>(T);
impl<T: fmt::Debug> fmt::Display for DisplayDebug<T> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt::Debug::fmt(&self.0, f)
}
}
impl<L: Language> Serialize for SyntaxNode<L> {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let mut state = serializer.serialize_map(Some(3))?;
state.serialize_entry("kind", &SerDisplay(DisplayDebug(self.kind())))?;
state.serialize_entry("text_range", &self.text_range())?;
state.serialize_entry("children", &Children(self))?;
state.end()
}
}
impl<L: Language> Serialize for SyntaxToken<L> {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let mut state = serializer.serialize_map(Some(3))?;
state.serialize_entry("kind", &SerDisplay(DisplayDebug(self.kind())))?;
state.serialize_entry("text_range", &self.text_range())?;
state.serialize_entry("text", &self.text())?;
state.end()
}
}
struct Children<T>(T);
impl<L: Language> Serialize for Children<&'_ SyntaxNode<L>> {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let mut state = serializer.serialize_seq(None)?;
self.0.children_with_tokens().try_for_each(|element| match element {
NodeOrToken::Node(it) => state.serialize_element(&it),
NodeOrToken::Token(it) => state.serialize_element(&it),
})?;
state.end()
}
}
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