mirror of
https://github.com/rust-lang/rust-analyzer
synced 2025-01-23 10:25:06 +00:00
67 lines
2.1 KiB
Rust
67 lines
2.1 KiB
Rust
//! This module contains utilities for turning SyntaxNodes and HIR types
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//! into types that may be used to render in a UI.
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pub(crate) mod function_signature;
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mod navigation_target;
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mod structure;
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mod short_label;
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use ra_syntax::{
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ast::{self, AstNode, AttrsOwner, NameOwner, TypeParamsOwner},
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SyntaxKind::{ATTR, COMMENT},
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};
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pub use navigation_target::NavigationTarget;
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pub use structure::{file_structure, StructureNode};
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pub(crate) use navigation_target::{ToNav, TryToNav};
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pub(crate) use short_label::ShortLabel;
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pub(crate) fn function_label(node: &ast::FnDef) -> String {
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function_signature::FunctionSignature::from(node).to_string()
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}
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pub(crate) fn const_label(node: &ast::ConstDef) -> String {
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let label: String = node
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.syntax()
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.children_with_tokens()
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.filter(|child| !(child.kind() == COMMENT || child.kind() == ATTR))
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.map(|node| node.to_string())
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.collect();
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label.trim().to_owned()
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}
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pub(crate) fn type_label(node: &ast::TypeAliasDef) -> String {
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let label: String = node
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.syntax()
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.children_with_tokens()
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.filter(|child| !(child.kind() == COMMENT || child.kind() == ATTR))
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.map(|node| node.to_string())
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.collect();
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label.trim().to_owned()
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}
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pub(crate) fn generic_parameters<N: TypeParamsOwner>(node: &N) -> Vec<String> {
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let mut res = vec![];
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if let Some(type_params) = node.type_param_list() {
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res.extend(type_params.lifetime_params().map(|p| p.syntax().text().to_string()));
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res.extend(type_params.type_params().map(|p| p.syntax().text().to_string()));
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}
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res
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}
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pub(crate) fn where_predicates<N: TypeParamsOwner>(node: &N) -> Vec<String> {
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let mut res = vec![];
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if let Some(clause) = node.where_clause() {
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res.extend(clause.predicates().map(|p| p.syntax().text().to_string()));
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}
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res
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}
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pub(crate) fn macro_label(node: &ast::MacroCall) -> String {
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let name = node.name().map(|name| name.syntax().text().to_string()).unwrap_or_default();
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let vis = if node.has_atom_attr("macro_export") { "#[macro_export]\n" } else { "" };
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format!("{}macro_rules! {}", vis, name)
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}
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