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feat: 新增 DEFINE_ACCESSOR_DYNAMIC opcode 支持计算键对象访问器

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爱特每羊队
2026-08-10 23:28:18 +08:00
parent 7e3d7b43b5
commit 51da7ed3d9
8 changed files with 110 additions and 22 deletions
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crates/oxide_emit/src/expr/object/object_literal.rs
+37 -18
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@@ -40,18 +40,25 @@ impl Emitter {
};
match p.kind {
PropertyKind::Get | PropertyKind::Set => {
if computed {
return Err("computed object accessors not yet supported".into());
}
// 计算键：键表达式先于访问器函数求值（规范求值序），键值运行时
// 由 DEFINE_ACCESSOR_DYNAMIC 从 key_reg 读取。
let key_reg = if computed {
Some(self.emit_expression(p.key.to_expression(), ctx)?)
} else {
None
};
let accessor_reg = self.emit_expression(&p.value, ctx)?;
if let Some(sub_mod) = ctx.nested.last_mut() {
// 访问器函数名带 "get "/"set " 前缀（SetFunctionName 语义）。
let fn_name = match p.kind {
PropertyKind::Get => format!("get {prop_name}"),
PropertyKind::Set => format!("set {prop_name}"),
_ => prop_name.clone(),
};
sub_mod.function_name = Some(fn_name);
if !computed {
if let Some(sub_mod) = ctx.nested.last_mut() {
// 访问器函数名带 "get "/"set " 前缀（SetFunctionName 语义）。
// 计算键的键值运行时才知，静态无法定名，保持匿名。
let fn_name = match p.kind {
PropertyKind::Get => format!("get {prop_name}"),
PropertyKind::Set => format!("set {prop_name}"),
_ => prop_name.clone(),
};
sub_mod.function_name = Some(fn_name);
}
}
let undef_reg = self.emit_undefined(ctx);
let (get_reg, set_reg) = if p.kind == PropertyKind::Get {
@@ -59,13 +66,25 @@ impl Emitter {
} else {
(undef_reg, accessor_reg)
};
let idx = ctx.add_constant(Constant::String(prop_name.to_string()));
ctx.inst(Inst::define_accessor(
Operand::Reg(obj_reg),
Operand::Reg(get_reg),
Operand::Reg(set_reg),
idx as u32,
));
match key_reg {
Some(key_reg) => {
ctx.inst(Inst::define_accessor_dynamic(
Operand::Reg(obj_reg),
Operand::Reg(get_reg),
Operand::Reg(set_reg),
key_reg,
));
}
None => {
let idx = ctx.add_constant(Constant::String(prop_name.to_string()));
ctx.inst(Inst::define_accessor(
Operand::Reg(obj_reg),
Operand::Reg(get_reg),
Operand::Reg(set_reg),
idx as u32,
));
}
}
}
_ => {
let key_reg = if computed {