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refactor: 控制流跳转改经 fixup 延迟发射

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This commit is contained in:
彭俊皓
2026-08-05 00:24:12 +08:00
parent b413bd7890
commit 865bf8091a
5 changed files with 19 additions and 50 deletions
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crates/oxide_compiler/src/stmt/basic/break_continue.rs
+2 -9
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@@ -1,5 +1,4 @@
use crate::compiler::{CompileCtx, Compiler};
use oxide_bytecode::opcode;
impl Compiler {
pub(super) fn count_break_statement(&self, ctx: &mut CompileCtx) {
@@ -25,10 +24,7 @@ impl Compiler {
let (bl, _) = ctx.current_loop().ok_or("break outside switch or loop".to_string())?;
*bl
};
let break_pos = ctx.resolve_label(break_label)?;
let offset = (break_pos as isize) - (ctx.bytecode.len() as isize);
let offset = ctx.checked_jump_offset(offset);
ctx.emit(opcode::encode_jmp(offset));
ctx.emit_jmp_labeled(break_label);
Ok(None)
}
@@ -47,10 +43,7 @@ impl Compiler {
let (_, cl) = ctx.current_loop().ok_or("continue outside loop".to_string())?;
*cl
};
let continue_pos = ctx.resolve_label(continue_label)?;
let offset = (continue_pos as isize) - (ctx.bytecode.len() as isize);
let offset = ctx.checked_jump_offset(offset);
ctx.emit(opcode::encode_jmp(offset));
ctx.emit_jmp_labeled(continue_label);
Ok(None)
}
}