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feat: Hover for literals showing additional value information

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This commit is contained in:
Lukas Wirth 2024-01-16 14:28:47 +01:00
parent 6584e63506
commit 384488c157
6 changed files with 377 additions and 25 deletions
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60
crates/ide/src/hover.rs
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@ -15,7 +15,7 @@ use ide_db::{
FxIndexSet, RootDatabase,
};
use itertools::Itertools;
use syntax::{ast, AstNode, SyntaxKind::*, SyntaxNode, T};
use syntax::{ast, match_ast, AstNode, AstToken, SyntaxKind::*, SyntaxNode, T};
use crate::{
doc_links::token_as_doc_comment,
@ -268,6 +268,64 @@ fn hover_simple(
let c = token.parent().and_then(|x| x.parent()).and_then(ast::ClosureExpr::cast)?;
render::closure_expr(sema, config, c)
})
})
// tokens
.or_else(|| {
let mut res = HoverResult::default();
match_ast! {
match original_token {
ast::String(string) => {
res.markup = Markup::fenced_block_text(format_args!("{}", string.value()?));
},
ast::ByteString(string) => {
res.markup = Markup::fenced_block_text(format_args!("{:?}", string.value()?));
},
ast::CString(string) => {
let val = string.value()?;
res.markup = Markup::fenced_block_text(format_args!("{}", std::str::from_utf8(val.as_ref()).ok()?));
},
ast::Char(char) => {
let mut res = HoverResult::default();
res.markup = Markup::fenced_block_text(format_args!("{}", char.value()?));
},
ast::Byte(byte) => {
res.markup = Markup::fenced_block_text(format_args!("0x{:X}", byte.value()?));
},
ast::FloatNumber(num) => {
res.markup = if num.suffix() == Some("f32") {
match num.value_f32() {
Ok(num) => {
Markup::fenced_block_text(format_args!("{num} (bits: 0x{:X})", num.to_bits()))
},
Err(e) => {
Markup::fenced_block_text(format_args!("{e}"))
},
}
} else {
match num.value() {
Ok(num) => {
Markup::fenced_block_text(format_args!("{num} (bits: 0x{:X})", num.to_bits()))
},
Err(e) => {
Markup::fenced_block_text(format_args!("{e}"))
},
}
};
},
ast::IntNumber(num) => {
res.markup = match num.value() {
Ok(num) => {
Markup::fenced_block_text(format_args!("{num} (0x{num:X}|0x{num:b})"))
},
Err(e) => {
Markup::fenced_block_text(format_args!("{e}"))
},
};
},
_ => return None
}
}
Some(res)
});
result.map(|mut res: HoverResult| {