wat_service 0.10.2

WebAssembly Text Format language service.
Documentation 
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use crate::{helpers::LineIndexExt, uri::InternUri};
use line_index::LineIndex;
use lspt::{CodeAction, CodeActionContext, CodeActionKind, TextEdit, Union2, WorkspaceEdit};
use rustc_hash::FxBuildHasher;
use std::collections::HashMap;
use wat_syntax::{SyntaxKind, SyntaxNode};

pub fn act(
    db: &dyn salsa::Database,
    uri: InternUri,
    line_index: &LineIndex,
    node: &SyntaxNode,
    context: &CodeActionContext,
) -> Option<CodeAction> {
    let text_edits = node
        .tokens_by_kind(SyntaxKind::is_trivia)
        .map(|token| TextEdit {
            range: line_index.convert(token.text_range()),
            new_text: String::new(),
        })
        .collect::<Vec<_>>();
    if text_edits.is_empty() {
        None
    } else {
        let mut changes = HashMap::with_capacity_and_hasher(1, FxBuildHasher);
        changes.insert(uri.raw(db), text_edits);
        Some(CodeAction {
            title: "Fix invalid memory argument".into(),
            kind: Some(CodeActionKind::QuickFix),
            edit: Some(WorkspaceEdit {
                changes: Some(changes),
                ..Default::default()
            }),
            is_preferred: Some(true),
            diagnostics: Some(
                context
                    .diagnostics
                    .iter()
                    .filter(|diagnostic| {
                        if let Some(Union2::B(s)) = &diagnostic.code {
                            s.starts_with("syntax") && diagnostic.message.contains("memory argument")
                        } else {
                            false
                        }
                    })
                    .cloned()
                    .collect(),
            ),
            ..Default::default()
        })
    }
}