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Default::default the highlighters

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This commit is contained in:
Lukas Wirth 2020-10-14 22:21:58 +02:00
parent 8c6dc5f28a
commit bab29e65eb
3 changed files with 7 additions and 18 deletions
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6
crates/ide/src/syntax_highlighting.rs
View File

@ -74,7 +74,7 @@ pub(crate) fn highlight(
let mut current_macro_call: Option<ast::MacroCall> = None;
let mut format_string_highlighter = FormatStringHighlighter::default();
let mut macro_rules_highlighter = MacroRulesHighlighter::new();
let mut macro_rules_highlighter = MacroRulesHighlighter::default();
// Walk all nodes, keeping track of whether we are inside a macro or not.
// If in macro, expand it first and highlight the expanded code.
@ -125,8 +125,8 @@ pub(crate) fn highlight(
WalkEvent::Leave(Some(mc)) => {
assert!(current_macro_call == Some(mc));
current_macro_call = None;
format_string_highlighter.reset();
macro_rules_highlighter.reset();
format_string_highlighter = FormatStringHighlighter::default();
macro_rules_highlighter = MacroRulesHighlighter::default();
}
_ => (),
}

4
crates/ide/src/syntax_highlighting/format.rs
View File

@ -12,10 +12,6 @@ pub(super) struct FormatStringHighlighter {
}
impl FormatStringHighlighter {
pub(super) fn reset(&mut self) {
self.format_string = None;
}
pub(super) fn check_for_format_string(&mut self, parent: &SyntaxNode) {
// Check if macro takes a format string and remember it for highlighting later.
// The macros that accept a format string expand to a compiler builtin macros

15
crates/ide/src/syntax_highlighting/macro_rules.rs
View File

@ -3,21 +3,14 @@ use syntax::{SyntaxElement, SyntaxKind, SyntaxToken, TextRange, T};
use crate::{HighlightTag, HighlightedRange};
#[derive(Default)]
pub(super) struct MacroRulesHighlighter {
state: Option<MacroMatcherParseState>,
}
impl MacroRulesHighlighter {
pub(super) fn new() -> Self {
MacroRulesHighlighter { state: None }
}
pub(super) fn init(&mut self) {
self.state = Some(MacroMatcherParseState::new());
}
pub(super) fn reset(&mut self) {
self.state = None;
self.state = Some(MacroMatcherParseState::default());
}
pub(super) fn advance(&mut self, token: &SyntaxToken) {
@ -51,8 +44,8 @@ struct MacroMatcherParseState {
in_invoc_body: bool,
}
impl MacroMatcherParseState {
fn new() -> Self {
impl Default for MacroMatcherParseState {
fn default() -> Self {
MacroMatcherParseState {
paren_ty: None,
paren_level: 0,