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perf: f64 转字符串去中间分配并加整数 double 快路径

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彭俊皓
2026-08-15 15:06:43 +08:00
parent dd930bc39d
commit 9ba1eb4c1c
4 changed files with 137 additions and 41 deletions
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crates/oxide_builtins/src/number.rs
+2 -2
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@@ -181,7 +181,7 @@ pub fn number_to_string<H: VmHost>(vm: &mut H, args: &[u8]) -> NativeResult {
};
if radix == 10 {
return NativeResult::Ok(vm.new_string(&oxide_runtime_api::js_number_to_string(n)));
return NativeResult::Ok(vm.new_string_owned(oxide_runtime_api::js_number_to_string(n)));
}
if n.is_nan() {
@@ -192,7 +192,7 @@ pub fn number_to_string<H: VmHost>(vm: &mut H, args: &[u8]) -> NativeResult {
}
if n.abs() >= u128::MAX as f64 {
// 超出 u128 可精确表示的整数范围，退化为十进制近似。
return NativeResult::Ok(vm.new_string(&oxide_runtime_api::js_number_to_string(n)));
return NativeResult::Ok(vm.new_string_owned(oxide_runtime_api::js_number_to_string(n)));
}
let neg = n.is_sign_negative();
let mut value = n.abs().trunc() as u128;