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feat: super 属性写新建 SUPER_PUT_PROP 指令

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彭俊皓
2026-10-10 01:37:39 +00:00
parent c38e91a65a
commit 958cc1f7a2
9 changed files with 390 additions and 21 deletions
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crates/oxide_emit/src/expr/operator/mod.rs
+67
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@@ -579,6 +579,41 @@ impl Emitter {
self.emit_identifier_update_static(name, update, ctx)
}
SimpleAssignmentTarget::StaticMemberExpression(member) => {
// super 属性自增/自减：this 先装载（GetThisBinding），键常量装载，
// 读旧值（SUPER_GET_PROP），运算，写回（SUPER_PUT_PROP）。
if matches!(&member.object, Expression::Super(_)) {
let this_reg = self.emit_super_this(ctx)?;
let prop_name = member.property.name.as_str();
let key_idx = ctx.add_constant(Constant::String(prop_name.to_string()));
let key_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(key_reg), key_idx));
let old_reg = ctx.alloc_reg();
ctx.inst(Inst::new(
OpCode::SUPER_GET_PROP,
Operand::Reg(old_reg),
Operand::Reg(this_reg),
Operand::Reg(key_reg),
));
let one_idx = ctx.add_constant(Constant::Int(1));
let one_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(one_reg), one_idx));
let new_reg = ctx.alloc_reg();
let op = if update.operator == UpdateOperator::Increment {
OpCode::ADD
} else {
OpCode::SUB
};
ctx.inst(Inst::new(op, Operand::Reg(new_reg), Operand::Reg(old_reg), Operand::Reg(one_reg)));
self.emit_super_put(this_reg, key_reg, new_reg, ctx);
let result_reg = ctx.alloc_reg();
ctx.inst(Inst::new(
OpCode::LOAD_VAR,
Operand::Reg(result_reg),
Operand::Reg(if update.prefix { new_reg } else { old_reg }),
Operand::None,
));
return Ok(result_reg);
}
let obj_reg = self.emit_expression(&member.object, ctx)?;
let prop_name = member.property.name.as_str();
let key_idx = ctx.add_constant(Constant::String(prop_name.to_string()));
@@ -601,6 +636,38 @@ impl Emitter {
Ok(val_reg)
}
SimpleAssignmentTarget::ComputedMemberExpression(member) => {
// super 计算成员自增/自减：this 先装载（GetThisBinding），键表达式
// 后求值，读旧值（SUPER_GET_PROP），运算，写回（SUPER_PUT_PROP）。
if matches!(&member.object, Expression::Super(_)) {
let this_reg = self.emit_super_this(ctx)?;
let key_reg = self.emit_expression(&member.expression, ctx)?;
let old_reg = ctx.alloc_reg();
ctx.inst(Inst::new(
OpCode::SUPER_GET_PROP,
Operand::Reg(old_reg),
Operand::Reg(this_reg),
Operand::Reg(key_reg),
));
let one_idx = ctx.add_constant(Constant::Int(1));
let one_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(one_reg), one_idx));
let new_reg = ctx.alloc_reg();
let op = if update.operator == UpdateOperator::Increment {
OpCode::ADD
} else {
OpCode::SUB
};
ctx.inst(Inst::new(op, Operand::Reg(new_reg), Operand::Reg(old_reg), Operand::Reg(one_reg)));
self.emit_super_put(this_reg, key_reg, new_reg, ctx);
let result_reg = ctx.alloc_reg();
ctx.inst(Inst::new(
OpCode::LOAD_VAR,
Operand::Reg(result_reg),
Operand::Reg(if update.prefix { new_reg } else { old_reg }),
Operand::None,
));
return Ok(result_reg);
}
let obj_reg = self.emit_expression(&member.object, ctx)?;
// 常量字符串键折叠为 IC 静态路径：MEMBER_INC/DEC 携带 IC 扩展字。
if let Some(key) = crate::expr::member::computed_const_key(&member.expression) {