#![doc = include_str!("readme.md")]
#[cfg(feature = "oak-highlight")]
pub mod highlighter;
use crate::{HlslLanguage, parser::element_type::HlslElementType};
use core::range::Range;
use oak_core::tree::RedNode;
#[cfg(feature = "lsp")]
use {
futures::Future,
oak_hover::{Hover, HoverProvider},
oak_lsp::service::LanguageService,
oak_vfs::Vfs,
};
#[cfg(feature = "lsp")]
#[cfg(feature = "lsp")]
pub struct HlslHoverProvider;
#[cfg(feature = "lsp")]
impl HoverProvider<HlslLanguage> for HlslHoverProvider {
fn hover(&self, node: &RedNode<HlslLanguage>, _range: Range<usize>) -> Option<Hover> {
let kind = node.green.kind;
let contents = match kind {
HlslElementType::Struct => "### HLSL Struct\nDefines a custom data structure.",
HlslElementType::Cbuffer => "### HLSL Constant Buffer\nDefines a buffer for shader constants.",
HlslElementType::Technique => "### HLSL Technique\nDefines a rendering technique.",
HlslElementType::Pass => "### HLSL Pass\nDefines a rendering pass within a technique.",
_ => return None,
};
Some(Hover { contents: contents.to_string(), range: Some(node.span()) })
}
}
#[cfg(feature = "lsp")]
pub struct HlslLanguageService<V: Vfs> {
vfs: V,
workspace: oak_lsp::workspace::WorkspaceManager,
hover_provider: HlslHoverProvider,
}
impl<V: Vfs> HlslLanguageService<V> {
pub fn new(vfs: V) -> Self {
Self { vfs, workspace: oak_lsp::workspace::WorkspaceManager::default(), hover_provider: HlslHoverProvider }
}
}
impl<V: Vfs + Send + Sync + 'static + oak_vfs::WritableVfs> LanguageService for HlslLanguageService<V> {
type Lang = HlslLanguage;
type Vfs = V;
fn vfs(&self) -> &Self::Vfs {
&self.vfs
}
fn workspace(&self) -> &oak_lsp::workspace::WorkspaceManager {
&self.workspace
}
fn get_root(&self, uri: &str) -> impl Future<Output = Option<RedNode<'_, HlslLanguage>>> + Send + '_ {
let _uri = uri.to_string();
async move {
None
}
}
fn hover(&self, uri: &str, range: Range<usize>) -> impl Future<Output = Option<oak_lsp::Hover>> + Send + '_ {
let uri = uri.to_string();
async move { self.with_root(&uri, |root| self.hover_provider.hover(&root, range).map(|h| oak_lsp::Hover { contents: h.contents, range: h.range })).await.flatten() }
}
}