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make large niche description more terse, switch to using u128::is_power_of_two

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This commit is contained in:
Luuk Wester 2025-01-21 10:33:28 +01:00
parent 57bd824b5a
commit 6b6e019593
2 changed files with 5 additions and 5 deletions
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8
crates/ide/src/hover/render.rs
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@ -1090,7 +1090,7 @@ fn render_memory_layout(
} else if is_pwr2minus1(niches) { } else if is_pwr2minus1(niches) {
format_to!(label, "niches = 2{} - 1, ", pwr2_to_exponent(niches + 1)); format_to!(label, "niches = 2{} - 1, ", pwr2_to_exponent(niches + 1));
} else { } else {
format_to!(label, "niches = really rather quite large, "); format_to!(label, "niches = a lot, ");
} }
} else { } else {
format_to!(label, "niches = {niches}, "); format_to!(label, "niches = {niches}, ");
@ -1224,15 +1224,15 @@ fn render_dyn_compatibility(
} }
fn is_pwr2(val: u128) -> bool { fn is_pwr2(val: u128) -> bool {
val.count_ones() == 1 val.is_power_of_two()
} }
fn is_pwr2minus1(val: u128) -> bool { fn is_pwr2minus1(val: u128) -> bool {
val == u128::MAX || (val + 1).count_ones() == 1 val == u128::MAX || is_pwr2(val + 1)
} }
fn is_pwr2plus1(val: u128) -> bool { fn is_pwr2plus1(val: u128) -> bool {
val != 0 && (val - 1).count_ones() == 1 val != 0 && is_pwr2(val - 1)
} }
fn pwr2_to_exponent(num: u128) -> String { fn pwr2_to_exponent(num: u128) -> String {

2
crates/ide/src/hover/tests.rs
View File

@ -1357,7 +1357,7 @@ fn hover_enum_limit() {
--- ---
size = 12 (0xC), align = 4, niches = really rather quite large size = 12 (0xC), align = 4, niches = a lot
"#]], "#]],
); );
} }