docs: 补充注释与格式化

crates/oxide_emit/src/stmt/iteration/do_while.rs

@@ -5,7 +5,9 @@ use oxide_ir::inst::Inst;
 use oxide_parser::Statement;
 
 impl Emitter {
-    pub(crate) fn emit_do_while_statement(&self, stmt: &Statement, ctx: &mut CompileCtx) -> Result<Option<u32>, String> {
+    pub(crate) fn emit_do_while_statement(
+        &self, stmt: &Statement, ctx: &mut CompileCtx,
+    ) -> Result<Option<u32>, String> {
         let Statement::DoWhileStatement(dw) = stmt else {
             return Ok(None);
         };

crates/oxide_emit/src/stmt/iteration/for_.rs

@@ -1,10 +1,10 @@
 //! for 语句 emit：`emit_for_statement` 含 init/test/update 三段与循环跳转。
 
 use crate::{CompileCtx, Emitter};
-use oxide_ir::inst::Inst;
-use oxide_ir::operand::Operand;
 use oxide_bytecode::module::Constant;
 use oxide_bytecode::opcode::OpCode;
+use oxide_ir::inst::Inst;
+use oxide_ir::operand::Operand;
 use oxide_parser::{BindingPattern, ForStatementInit, Statement, VariableDeclarationKind};
 
 impl Emitter {
@@ -40,7 +40,12 @@ impl Emitter {
                             ctx.declare(bi.name.as_str(), var_reg, decl.kind, is_const)?;
                             var_reg
                         };
-                        ctx.inst(Inst::new(OpCode::STORE_VAR, Operand::Reg(target_reg), Operand::Reg(tmp), Operand::None));
+                        ctx.inst(Inst::new(
+                            OpCode::STORE_VAR,
+                            Operand::Reg(target_reg),
+                            Operand::Reg(tmp),
+                            Operand::None,
+                        ));
                         ctx.init_var(bi.name.as_str());
                     }
                 }

crates/oxide_emit/src/stmt/iteration/for_in.rs

@@ -1,9 +1,9 @@
 //! for-in 语句 emit：`emit_for_in_statement` 遍历可枚举属性名。
 
 use crate::{CompileCtx, Emitter};
+use oxide_bytecode::opcode::OpCode;
 use oxide_ir::inst::Inst;
 use oxide_ir::operand::Operand;
-use oxide_bytecode::opcode::OpCode;
 use oxide_parser::{ForStatementLeft, Statement, VariableDeclarationKind};
 
 impl Emitter {

crates/oxide_emit/src/stmt/iteration/for_of.rs

@@ -1,9 +1,9 @@
 //! for-of 语句 emit：`emit_for_of_statement` 迭代器协议遍历。
 
 use crate::{CompileCtx, Emitter};
+use oxide_bytecode::opcode::OpCode;
 use oxide_ir::inst::Inst;
 use oxide_ir::operand::Operand;
-use oxide_bytecode::opcode::OpCode;
 use oxide_parser::{ForStatementLeft, Statement};
 
 impl Emitter {