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More type safety for highlighting

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This commit is contained in:
Aleksey Kladov 2020-02-26 17:08:15 +01:00
parent 640ede4ade
commit f38bac48e5
6 changed files with 111 additions and 93 deletions
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43
crates/ra_ide/src/syntax_highlighting/highlight_tag.rs Normal file
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//! Defines token tags we use for syntax highlighting.
//! A tag is not unlike a CSS class.
use std::fmt;
#[derive(Debug, PartialEq, Eq, Clone, Copy)]
pub struct HighlightTag(&'static str);
impl fmt::Display for HighlightTag {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt::Display::fmt(self.0, f)
}
}
#[rustfmt::skip]
impl HighlightTag {
pub const FIELD: HighlightTag = HighlightTag("field");
pub const FUNCTION: HighlightTag = HighlightTag("function");
pub const MODULE: HighlightTag = HighlightTag("module");
pub const CONSTANT: HighlightTag = HighlightTag("constant");
pub const MACRO: HighlightTag = HighlightTag("macro");
pub const VARIABLE: HighlightTag = HighlightTag("variable");
pub const VARIABLE_MUT: HighlightTag = HighlightTag("variable.mut");
pub const TYPE: HighlightTag = HighlightTag("type");
pub const TYPE_BUILTIN: HighlightTag = HighlightTag("type.builtin");
pub const TYPE_SELF: HighlightTag = HighlightTag("type.self");
pub const TYPE_PARAM: HighlightTag = HighlightTag("type.param");
pub const TYPE_LIFETIME: HighlightTag = HighlightTag("type.lifetime");
pub const LITERAL_BYTE: HighlightTag = HighlightTag("literal.byte");
pub const LITERAL_NUMERIC: HighlightTag = HighlightTag("literal.numeric");
pub const LITERAL_CHAR: HighlightTag = HighlightTag("literal.char");
pub const LITERAL_COMMENT: HighlightTag = HighlightTag("comment");
pub const LITERAL_STRING: HighlightTag = HighlightTag("string");
pub const LITERAL_ATTRIBUTE: HighlightTag = HighlightTag("attribute");
pub const KEYWORD: HighlightTag = HighlightTag("keyword");
pub const KEYWORD_UNSAFE: HighlightTag = HighlightTag("keyword.unsafe");
pub const KEYWORD_CONTROL: HighlightTag = HighlightTag("keyword.control");
}