fix: 对齐 counter/emitter 指令条数，修解构参数、数组赋值元素、解构catch、for-init 无初始化的跳转漂移

2026-06-27 20:32:33 +08:00
parent 3c92f8368c
commit 242e94af09
7 changed files with 104 additions and 14 deletions
@@ -721,6 +721,16 @@ impl Compiler {
            ctx.declare_initialized(name, reg, VariableDeclarationKind::Var, false)?;
        }

+        // Count the parameter destructuring prologue so the count pass matches the emit pass
+        // below (which emits it via emit_binding_pattern). Without this the projected program
+        // counter undercounts, drifting every jump target inside a function that has a
+        // destructured or default parameter.
+        for spec in param_specs {
+            if let ParamSpec::Pattern { pattern, .. } = spec {
+                self.count_binding_pattern(pattern, &mut ctx);
+            }
+        }
+
        // Count pass
        if !fields_after_super {
            if let Some(count) = count_fields.as_mut() {