feat: 搭建闭包捕获基础设施

crates/oxide_bytecode/src/module.rs

@@ -12,6 +12,13 @@ pub enum Constant {
     Undefined,
 }
 
+#[derive(Debug, Clone)]
+pub struct UpvalueCapture {
+    pub name: String,
+    pub enclosing_reg: u8,
+    pub cell_idx: u8,
+}
+
 pub struct CompiledModule {
     pub bytecode: Vec<opcode::Instr>,
     pub constants: Vec<Constant>,
@@ -37,6 +44,8 @@ pub struct CompiledModule {
     pub is_derived_constructor: bool,
     /// True for prototype methods whose function object needs a runtime home_object.
     pub needs_home_object: bool,
+    pub upvalue_captures: Vec<UpvalueCapture>,
+    pub cells_needed: u8,
 }
 
 impl CompiledModule {
@@ -55,6 +64,8 @@ impl CompiledModule {
             is_class_constructor: false,
             is_derived_constructor: false,
             needs_home_object: false,
+            upvalue_captures: Vec::new(),
+            cells_needed: 0,
         }
     }
 }
@@ -81,6 +92,8 @@ impl Clone for CompiledModule {
             is_class_constructor: self.is_class_constructor,
             is_derived_constructor: self.is_derived_constructor,
             needs_home_object: self.needs_home_object,
+            upvalue_captures: self.upvalue_captures.clone(),
+            cells_needed: self.cells_needed,
         }
     }
 }
@@ -93,6 +106,8 @@ impl fmt::Display for CompiledModule {
             writeln!(f, ";   [{i}] = {c:?}")?;
         }
         writeln!(f)?;
+        writeln!(f, "; upvalue_captures: {:?}", self.upvalue_captures)?;
+        writeln!(f)?;
         for (offset, &instr) in self.bytecode.iter().enumerate() {
             let op = opcode::opcode(instr);
             let rd = opcode::rd(instr);

crates/oxide_bytecode/src/opcode.rs

@@ -109,7 +109,10 @@ define_opcodes! {
     DELETE_PROP_STATIC = 0x39 => "DELETE_PROP_STATIC",
     DELETE_PROP_DYNAMIC = 0x3A => "DELETE_PROP_DYNAMIC",
     INSTANCEOF = 0x3B => "INSTANCEOF",
+    MAKE_CELL = 0x3C => "MAKE_CELL",
+    CELL_GET = 0x3D => "CELL_GET",
     REST_OBJECT = 0x3E => "REST_OBJECT",
+    CELL_SET = 0x3F => "CELL_SET",
 
     // -- Variable (0x30-0x32) --
     LOAD_VAR = 0x30 => "LOAD_VAR",
@@ -126,8 +129,10 @@ define_opcodes! {
     SUPER_STATIC_GET_PROP = 0x46 => "SUPER_STATIC_GET_PROP",
     SET_HOME_OBJECT = 0x47 => "SET_HOME_OBJECT",
     DEFINE_ACCESSOR = 0x48 => "DEFINE_ACCESSOR",
+    LOAD_UPVALUE = 0x49 => "LOAD_UPVALUE",
     CREATE_CLOSURE = 0x4A => "CREATE_CLOSURE",
     CREATE_REGEXP = 0x4B => "CREATE_REGEXP",
+    STORE_UPVALUE = 0x4C => "STORE_UPVALUE",
 
     // ── Object Property (0x50-0x5F) ──
     IC_GET_PROP = 0x50 => "IC_GET_PROP",