ITStudio_OUC/OxideJS-New
0
1
Fork 0
mirror of https://github.com/pjh456/OxideJS.git synced 2026-10-24 02:31:13 +08:00
Code Issues Packages Projects Releases Wiki Activity

feat: 异常与 return 穿越释放资源，dispose_count 门控

Browse Source
This commit is contained in:
彭俊皓
2026-10-09 19:14:36 +00:00
parent 48ffb54c4f
commit ae73fb8da5
20 changed files with 264 additions and 152 deletions
Download Patch File Download Diff File Expand all files Collapse all files
crates/oxide_ir/src/inst.rs
+12 -10
View File
@@ -447,39 +447,41 @@ impl Inst {
/// break 完成：label 指向循环/switch 出口，`crossed` 为逃出的 finally 域数
/// （emit 词法计算，运行时据此逐个穿越 finally；0 表示未逃出，不产生完成语义）。
/// `for_of_count`/`for_in_count` 为逃出的迭代器层数，编码进 ext 字——
/// BREAK/CONTINUE 的 a/b 槽被跳转 offset 占用，无空闲位。
/// 编码：rd 槽放 crossed（≤255），label 放 b 槽，ext[0] 打包两个逃出计数。
pub fn brk(label: LabelId, crossed: u16, for_of_count: usize, for_in_count: usize) -> Self {
/// `for_of_count`/`for_in_count` 为逃出的迭代器层数，`dispose_count` 为逃出的
/// 资源条数，编码进 ext 字——BREAK/CONTINUE 的 a/b 槽被跳转 offset 占用，无空闲位。
/// 编码：rd 槽放 crossed（≤255），label 放 b 槽，ext[0] 打包两个迭代器计数，
/// ext[1] 放 dispose_count。
pub fn brk(label: LabelId, crossed: u16, for_of_count: usize, for_in_count: usize, dispose_count: usize) -> Self {
Self::with_ext(
OpCode::BREAK,
Operand::Imm(crossed),
Operand::None,
Operand::Label(label),
&[pack_escape_counts(for_of_count, for_in_count)],
&[pack_escape_counts(for_of_count, for_in_count), dispose_count as u32],
)
}
/// continue 完成：同 break，label 指向循环继续目标。
pub fn cont(label: LabelId, crossed: u16, for_of_count: usize, for_in_count: usize) -> Self {
pub fn cont(label: LabelId, crossed: u16, for_of_count: usize, for_in_count: usize, dispose_count: usize) -> Self {
Self::with_ext(
OpCode::CONTINUE,
Operand::Imm(crossed),
Operand::None,
Operand::Label(label),
&[pack_escape_counts(for_of_count, for_in_count)],
&[pack_escape_counts(for_of_count, for_in_count), dispose_count as u32],
)
}
/// return 完成：`src` 为返回值寄存器（None = 隐式 undefined，reg 0）。
/// `for_of_count`/`for_in_count` 为逃出的迭代器层数，编码进 ext 字。
pub fn ret(src: Operand, for_of_count: usize, for_in_count: usize) -> Self {
/// `for_of_count`/`for_in_count` 为逃出的迭代器层数，`dispose_count` 为逃出的
/// 资源条数，编码进 ext 字。
pub fn ret(src: Operand, for_of_count: usize, for_in_count: usize, dispose_count: usize) -> Self {
Self::with_ext(
OpCode::RETURN,
src,
Operand::None,
Operand::None,
&[pack_escape_counts(for_of_count, for_in_count)],
&[pack_escape_counts(for_of_count, for_in_count), dispose_count as u32],
)
}