refactor: opcode 语义单张声明式表（def/use/pure/jump/term/ic 六维收敛）
This commit is contained in:
爱特每羊队
@@ -1,20 +1,83 @@
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//! 字节码操作码表与指令编解码。
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//!
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//! [`OpCode`] 由 `define_opcodes!` 宏从单张表生成；[`Instr`] 是 4 字节指令
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//! （opcode + rd + a + b，imm16/offset16 复用 a、b 两字节）。本模块提供
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//! 编译器发射（`encode*`）与 VM 解码（`opcode` / `rd` / `a` / `b` 等）全套函数。
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//! [`OpCode`] 由 `define_opcodes!` 宏从单张表生成（每行含语义字段
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//! def/uses/pure/jump/term/ic）；[`Instr`] 是 4 字节指令（opcode + rd + a + b，
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//! imm16/offset16 复用 a、b 两字节）。本模块提供编译器发射（`encode*`）与 VM
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//! 解码（`opcode` / `rd` / `a` / `b` 等）全套函数。
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use std::fmt;
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/// 从单张表生成 [`OpCode`] 枚举及其 `TryFrom<u8>`、`Display` 实现。
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/// 操作数槽位：指令 rd/a/b 三槽之一。
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum Slot {
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/// 目标寄存器槽。
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Rd,
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/// 第一操作数槽。
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A,
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/// 第二操作数槽。
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B,
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}
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/// 槽位规范：声明指令如何读写寄存器。解析器在 `oxide_ir::contract`。
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///
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/// 每行 `VARIANT = 0xXX => "DISPLAY"` 同时提供枚举判别值、`TryFrom` 匹配分支
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/// 与 `Display` 名称三份信息，保证三表永不漂移；新增操作码只需加一行。
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/// # 语义约定
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/// - `Slot(Rd|A|B)`：读/写对应操作数槽；Const/Imm/Label 非寄存器则跳过；
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/// None→0、This→254、NewTarget→255 由操作数层 reg_of 映射（不进表）。
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/// - `Reg0`：常量寄存器 0（CALL 隐式写、HALT 隐式读）。
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/// - `Range(Slot)`：从指定槽起连续 nargs 个寄存器，nargs=ext[0]（调用实参区）。
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/// - `SpreadArgs`：ext[1..] 每个字 `& 0x7FFF_FFFF` 是实参寄存器（spread 源同低 31 位）。
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/// - `TemplateExprs`：TEMPLATE_STR 的 ext[1..]，`seg>>31==1` 时低 8 位是表达式寄存器。
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/// - `BrandReg`：ext[0] 是 brand 对象寄存器，0 表示跳过检查（不产生 use）。
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum SlotSpec {
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/// 读写对应操作数槽。
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Slot(Slot),
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/// 常量寄存器 0。
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Reg0,
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/// 从指定槽起连续 nargs 个寄存器（nargs=ext[0]）。
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Range(Slot),
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/// spread 调用系 ext[1..] 的有序实参字。
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SpreadArgs,
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/// TEMPLATE_STR 的 ext[1..] 表达式寄存器。
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TemplateExprs,
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/// ext[0] 的 brand 对象寄存器（0 跳过检查）。
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BrandReg,
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}
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/// 单张语义表行：一个 opcode 的 def/uses/pure/跳转/终结/IC 扩展字声明。
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///
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/// 字段语义与各消费方历史硬编码集合一致：`is_jump` = lower.rs 跳转族（label
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/// 回填），`is_terminator` = CFG 块尾终结，`ic_ext` = VM 的 IC 扩展字。`pure`
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/// 是静态可删判定，LOAD_VAR 的上下文例外留在 `oxide_ir::contract::is_pure`。
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pub struct OpSemantics {
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/// 写入的寄存器（恒为单个，无 Range）。
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pub def: Option<SlotSpec>,
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/// 读取的寄存器（按序，序即 use_regs 输出序）。
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pub uses: &'static [SlotSpec],
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/// 静态可删判定（LOAD_VAR 例外在 oxide_ir 侧）。
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pub pure: bool,
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/// 带 Label 槽、需偏移回填（= lower.rs is_jump_op）。
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pub is_jump: bool,
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/// CFG 块尾终结（= cfg is_terminator）。
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pub is_terminator: bool,
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/// 3 个 IC 扩展字（= has_ic_ext_words）。
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pub ic_ext: bool,
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}
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/// 从单张表生成 [`OpCode`] 枚举、`TryFrom<u8>`、`Display` 与语义访问器。
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///
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/// 每行同时提供枚举判别值、`TryFrom` 分支、`Display` 名称与语义字段
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/// （def/uses/pure/jump/term/ic）七份信息，保证多表永不漂移；新增操作码只需
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/// 加一行。`semantics()` 的 match 无 `_` 臂——漏填语义即编译错误。
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///
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/// # 注意事项
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/// - 分组注释（`// ── 算术 ──`）在宏展开前被词法器剥离，可自由插入行间。
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macro_rules! define_opcodes {
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( $( $name:ident = $val:literal => $disp:literal ),+ $(,)? ) => {
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( $(
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$name:ident = $val:literal => $disp:literal,
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def = $def:expr, uses = [$($u:expr),*],
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pure = $pure:literal, jump = $jump:literal, term = $term:literal, ic = $ic:literal
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),+ $(,)? ) => {
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/// 寄存器字节码虚拟机的操作码。
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///
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/// 按 16 个一组组织便于阅读。已实现的操作码在编译器中有发射支持；
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@@ -45,230 +108,532 @@ macro_rules! define_opcodes {
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write!(f, "{name}")
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}
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}
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impl OpCode {
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/// 单张语义表访问器。match 无 `_` 臂：新 opcode 漏填语义即编译错误。
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///
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/// # 注意事项
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/// - 返回 `&'static`：match 臂内 `&OpSemantics { .. }` 是常量表达式，
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/// 由常量提升保证零运行时开销。
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pub fn semantics(&self) -> &'static OpSemantics {
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match self {
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$( OpCode::$name => &OpSemantics {
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def: $def,
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uses: &[$($u),*],
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pure: $pure,
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is_jump: $jump,
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is_terminator: $term,
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ic_ext: $ic,
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}, )+
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}
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}
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/// 便捷访问器：跳转族（label 偏移回填）。
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pub fn is_jump(&self) -> bool {
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self.semantics().is_jump
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}
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/// 便捷访问器：CFG 块尾终结。
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pub fn is_terminator(&self) -> bool {
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self.semantics().is_terminator
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}
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/// 便捷访问器：IC 扩展字。
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pub fn has_ic_ext_words(&self) -> bool {
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self.semantics().ic_ext
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}
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}
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};
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}
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define_opcodes! {
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// ── Arithmetic (0x00-0x0F) ──
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ADD = 0x00 => "ADD",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = true, jump = false, term = false, ic = false,
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SUB = 0x01 => "SUB",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = true, jump = false, term = false, ic = false,
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MUL = 0x02 => "MUL",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = true, jump = false, term = false, ic = false,
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DIV = 0x03 => "DIV",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = true, jump = false, term = false, ic = false,
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MOD = 0x04 => "MOD",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = true, jump = false, term = false, ic = false,
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NEG = 0x05 => "NEG",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A)],
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pure = true, jump = false, term = false, ic = false,
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COMPOUND_ADD = 0x06 => "COMPOUND_ADD",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
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pure = false, jump = false, term = false, ic = false,
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COMPOUND_SUB = 0x07 => "COMPOUND_SUB",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
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pure = false, jump = false, term = false, ic = false,
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COMPOUND_MUL = 0x08 => "COMPOUND_MUL",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
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pure = false, jump = false, term = false, ic = false,
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COMPOUND_DIV = 0x09 => "COMPOUND_DIV",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
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pure = false, jump = false, term = false, ic = false,
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COMPOUND_MOD = 0x0A => "COMPOUND_MOD",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
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pure = false, jump = false, term = false, ic = false,
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COMPOUND_EXP = 0x0B => "COMPOUND_EXP",
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MOV = 0x0C => "MOV", // rd=dst, a=src（寄存器复制，区间拆分搬值）
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SPILL = 0x0D => "SPILL", // rd=src, ext=[slot u16]（寄存器值写 VM spill 栈）
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UNSPILL = 0x0E => "UNSPILL", // rd=dst, ext=[slot u16]（从 VM spill 栈恢复寄存器）
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
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pure = false, jump = false, term = false, ic = false,
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MOV = 0x0C => "MOV", // rd=dst, a=src（寄存器复制，区间拆分搬值）
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A)],
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pure = true, jump = false, term = false, ic = false,
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SPILL = 0x0D => "SPILL", // rd=src, ext=[slot u16]（寄存器值写 VM spill 栈）
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def = None, uses = [SlotSpec::Slot(Slot::Rd)],
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pure = false, jump = false, term = false, ic = false,
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UNSPILL = 0x0E => "UNSPILL", // rd=dst, ext=[slot u16]（从 VM spill 栈恢复寄存器）
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
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pure = false, jump = false, term = false, ic = false,
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SPREAD_OBJECT = 0x0F => "SPREAD_OBJECT", // rd=目标对象, a=源（对象字面量 ... 展开，原地写目标）
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
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pure = false, jump = false, term = false, ic = false,
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// ── 比较 (0x10-0x1F) ──
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EQ = 0x10 => "EQ",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = true, jump = false, term = false, ic = false,
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NEQ = 0x11 => "NEQ",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = true, jump = false, term = false, ic = false,
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LT = 0x12 => "LT",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = true, jump = false, term = false, ic = false,
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GT = 0x13 => "GT",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = true, jump = false, term = false, ic = false,
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LTE = 0x14 => "LTE",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = true, jump = false, term = false, ic = false,
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GTE = 0x15 => "GTE",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = true, jump = false, term = false, ic = false,
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IN = 0x16 => "IN",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = false, jump = false, term = false, ic = false,
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NOT = 0x17 => "NOT",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A)],
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pure = true, jump = false, term = false, ic = false,
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AND = 0x18 => "AND",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = true, jump = false, term = false, ic = false,
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OR = 0x19 => "OR",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = true, jump = false, term = false, ic = false,
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STRICT_EQ = 0x1A => "STRICT_EQ",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = true, jump = false, term = false, ic = false,
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STRICT_NEQ = 0x1C => "STRICT_NEQ",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
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pure = true, jump = false, term = false, ic = false,
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UNARY_PLUS = 0x1D => "UNARY_PLUS",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A)],
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pure = true, jump = false, term = false, ic = false,
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// ── 控制流 (0x1E-0x2F) ──
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BREAK = 0x1E => "BREAK",
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def = None, uses = [],
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pure = false, jump = true, term = true, ic = false,
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CONTINUE = 0x1F => "CONTINUE",
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def = None, uses = [],
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pure = false, jump = true, term = true, ic = false,
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JMP = 0x20 => "JMP",
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def = None, uses = [],
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pure = false, jump = true, term = true, ic = false,
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JMP_IF_FALSE = 0x21 => "JMP_IF_FALSE",
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def = None, uses = [SlotSpec::Slot(Slot::Rd)],
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pure = false, jump = true, term = true, ic = false,
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JMP_IF_TRUE = 0x22 => "JMP_IF_TRUE",
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def = None, uses = [SlotSpec::Slot(Slot::Rd)],
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pure = false, jump = true, term = true, ic = false,
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FOR_OF_INIT = 0x23 => "FOR_OF_INIT",
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def = None, uses = [SlotSpec::Slot(Slot::A)],
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pure = false, jump = false, term = false, ic = false,
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FOR_OF_NEXT = 0x24 => "FOR_OF_NEXT",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
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pure = false, jump = false, term = false, ic = false,
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// ── 更新 (0x25-0x28) ──
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INC_PRE = 0x25 => "INC_PRE",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd)],
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pure = false, jump = false, term = false, ic = false,
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INC_POST = 0x26 => "INC_POST",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd)],
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pure = false, jump = false, term = false, ic = false,
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DEC_PRE = 0x27 => "DEC_PRE",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd)],
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pure = false, jump = false, term = false, ic = false,
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DEC_POST = 0x28 => "DEC_POST",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd)],
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pure = false, jump = false, term = false, ic = false,
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FOR_IN_INIT = 0x29 => "FOR_IN_INIT",
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def = None, uses = [SlotSpec::Slot(Slot::A)],
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pure = false, jump = false, term = false, ic = false,
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FOR_IN_NEXT = 0x2A => "FOR_IN_NEXT",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
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pure = false, jump = false, term = false, ic = false,
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FOR_IN_DONE = 0x2B => "FOR_IN_DONE",
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SWITCH_TABLE = 0x2C => "SWITCH_TABLE",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
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pure = false, jump = false, term = false, ic = false,
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SWITCH_TABLE = 0x2C => "SWITCH_TABLE", // 占位：emit 不产，按 catch-all 保守 def
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
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pure = false, jump = false, term = false, ic = false,
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FOR_IN_CLEANUP = 0x2D => "FOR_IN_CLEANUP",
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def = None, uses = [],
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pure = false, jump = false, term = false, ic = false,
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// ── 异常 (0x2E-0x2F, 0x33-0x35) ──
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THROW = 0x2E => "THROW",
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def = None, uses = [SlotSpec::Slot(Slot::Rd)],
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pure = false, jump = false, term = true, ic = false,
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TRY_BEGIN = 0x2F => "TRY_BEGIN",
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def = None, uses = [],
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pure = false, jump = true, term = false, ic = false,
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TRY_END = 0x33 => "TRY_END",
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def = None, uses = [],
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pure = false, jump = false, term = false, ic = false,
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TRY_FINALLY_BEGIN = 0x34 => "TRY_FINALLY_BEGIN",
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def = None, uses = [],
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pure = false, jump = true, term = false, ic = false,
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TRY_FINALLY_END = 0x35 => "TRY_FINALLY_END",
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def = None, uses = [],
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pure = false, jump = false, term = false, ic = false,
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FOR_OF_DONE = 0x36 => "FOR_OF_DONE",
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def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
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pure = false, jump = false, term = false, ic = false,
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FOR_OF_CLOSE = 0x37 => "FOR_OF_CLOSE",
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def = None, uses = [],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
|
||||
// ── 模板字符串 (0x38) ──
|
||||
TEMPLATE_STR = 0x38 => "TEMPLATE_STR",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::TemplateExprs],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
|
||||
// ── 小语言特性 (0x39-0x3B) ──
|
||||
DELETE_PROP_STATIC = 0x39 => "DELETE_PROP_STATIC",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
DELETE_PROP_DYNAMIC = 0x3A => "DELETE_PROP_DYNAMIC",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
INSTANCEOF = 0x3B => "INSTANCEOF",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
MAKE_CELL = 0x3C => "MAKE_CELL",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
CELL_GET = 0x3D => "CELL_GET",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A)],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
REST_OBJECT = 0x3E => "REST_OBJECT",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
CELL_SET = 0x3F => "CELL_SET",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
|
||||
// ── 变量 (0x30-0x32) ──
|
||||
LOAD_VAR = 0x30 => "LOAD_VAR",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A)],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
STORE_VAR = 0x31 => "STORE_VAR",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
LOAD_CONST = 0x32 => "LOAD_CONST",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
|
||||
// ── 调用 (0x40-0x4F) ──
|
||||
CALL = 0x40 => "CALL",
|
||||
CALL = 0x40 => "CALL", // 结果隐式写 reg 0；rd=callee, a=this, b=首参, ext[0]=nargs
|
||||
def = Some(SlotSpec::Reg0), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Range(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
RETURN = 0x41 => "RETURN",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd)],
|
||||
pure = false, jump = false, term = true, ic = false,
|
||||
CALL_NATIVE = 0x42 => "CALL_NATIVE",
|
||||
NEW_EXPRESSION = 0x43 => "NEW_EXPRESSION",
|
||||
SUPER_CALL = 0x44 => "SUPER_CALL",
|
||||
def = Some(SlotSpec::Reg0), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Range(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
NEW_EXPRESSION = 0x43 => "NEW_EXPRESSION", // a=ctor, b..b+nargs
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Range(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
SUPER_CALL = 0x44 => "SUPER_CALL", // a..a+nargs，无 callee/this 槽
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Range(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
SUPER_GET_PROP = 0x45 => "SUPER_GET_PROP",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
SUPER_STATIC_GET_PROP = 0x46 => "SUPER_STATIC_GET_PROP",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
SET_HOME_OBJECT = 0x47 => "SET_HOME_OBJECT",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
DEFINE_ACCESSOR = 0x48 => "DEFINE_ACCESSOR",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
LOAD_UPVALUE = 0x49 => "LOAD_UPVALUE",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
CREATE_CLOSURE = 0x4A => "CREATE_CLOSURE",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
CREATE_REGEXP = 0x4B => "CREATE_REGEXP",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
STORE_UPVALUE = 0x4C => "STORE_UPVALUE",
|
||||
CALL_SPREAD = 0x4D => "CALL_SPREAD",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
CALL_SPREAD = 0x4D => "CALL_SPREAD", // 结果经 reg 0；ext[1..] 有序实参字
|
||||
def = Some(SlotSpec::Reg0), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::SpreadArgs],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
NEW_EXPRESSION_SPREAD = 0x4E => "NEW_EXPRESSION_SPREAD",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::SpreadArgs],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
SUPER_CALL_SPREAD = 0x4F => "SUPER_CALL_SPREAD",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::SpreadArgs],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
|
||||
// ── Object Property (0x50-0x5F) ──
|
||||
IC_GET_PROP = 0x50 => "IC_GET_PROP",
|
||||
IC_GET_PROP = 0x50 => "IC_GET_PROP", // a 槽既是对象 use 又写回结果，rd 忽略
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
IC_SET_PROP = 0x51 => "IC_SET_PROP",
|
||||
GET_PROP = 0x52 => "GET_PROP",
|
||||
GET_PROP_DYNAMIC = 0x53 => "GET_PROP_DYNAMIC",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
GET_PROP = 0x52 => "GET_PROP", // 结果写 a 槽，rd=obj 是 use
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
GET_PROP_DYNAMIC = 0x53 => "GET_PROP_DYNAMIC", // 结果写 b 槽
|
||||
def = Some(SlotSpec::Slot(Slot::B)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
SET_PROP = 0x54 => "SET_PROP",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
SET_PROP_DYNAMIC = 0x55 => "SET_PROP_DYNAMIC",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
NEW_OBJECT = 0x56 => "NEW_OBJECT",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
NEW_ARRAY = 0x57 => "NEW_ARRAY",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
SET_ELEM = 0x58 => "SET_ELEM",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
|
||||
// ── 成员更新 (0x59-0x62) ──
|
||||
MEMBER_INC = 0x59 => "MEMBER_INC",
|
||||
MEMBER_INC = 0x59 => "MEMBER_INC", // 结果写 a 槽（val 槽原地更新）
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
MEMBER_DEC = 0x5A => "MEMBER_DEC",
|
||||
DYN_MEMBER_INC = 0x5B => "DYN_MEMBER_INC",
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
DYN_MEMBER_INC = 0x5B => "DYN_MEMBER_INC", // 结果写 b 槽
|
||||
def = Some(SlotSpec::Slot(Slot::B)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
DYN_MEMBER_DEC = 0x5C => "DYN_MEMBER_DEC",
|
||||
def = Some(SlotSpec::Slot(Slot::B)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
COMPOUND_MEMBER_ADD = 0x5D => "COMPOUND_MEMBER_ADD",
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
COMPOUND_MEMBER_SUB = 0x5E => "COMPOUND_MEMBER_SUB",
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
COMPOUND_MEMBER_MUL = 0x5F => "COMPOUND_MEMBER_MUL",
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
COMPOUND_MEMBER_DIV = 0x60 => "COMPOUND_MEMBER_DIV",
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
COMPOUND_MEMBER_MOD = 0x61 => "COMPOUND_MEMBER_MOD",
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
COMPOUND_MEMBER_EXP = 0x62 => "COMPOUND_MEMBER_EXP",
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
|
||||
// ── 对象 (0x63) ──
|
||||
CREATE_ARGUMENTS = 0x63 => "CREATE_ARGUMENTS",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
// rest 参数数组：rd=目标寄存器，b=固定形参数（rest 之前的形参个数）。
|
||||
CREATE_REST_ARRAY = 0x6E => "CREATE_REST_ARRAY",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
|
||||
// ── define 语义属性写入 (0x6D, 0x6F) ──
|
||||
DEFINE_PROP = 0x6D => "DEFINE_PROP",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
// 全局 var 绑定属性定义：rd=目标对象、a=值、b=键，数据属性可写/可枚举/不可配置
|
||||
// （脚本顶层 var/function 声明同步到 globalThis 用，属性描述符与规范一致）。
|
||||
DEFINE_GLOBAL_PROP = 0x6F => "DEFINE_GLOBAL_PROP",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
|
||||
// ── 成员复合赋值：位/移位 (0x64-0x69) ──
|
||||
COMPOUND_MEMBER_BIT_AND = 0x64 => "COMPOUND_MEMBER_BIT_AND",
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
COMPOUND_MEMBER_BIT_OR = 0x65 => "COMPOUND_MEMBER_BIT_OR",
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
COMPOUND_MEMBER_BIT_XOR = 0x66 => "COMPOUND_MEMBER_BIT_XOR",
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
COMPOUND_MEMBER_SHL = 0x67 => "COMPOUND_MEMBER_SHL",
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
COMPOUND_MEMBER_SHR = 0x68 => "COMPOUND_MEMBER_SHR",
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
COMPOUND_MEMBER_USHR = 0x69 => "COMPOUND_MEMBER_USHR",
|
||||
def = Some(SlotSpec::Slot(Slot::A)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = true,
|
||||
|
||||
// ── Profiling — 占位符 (0x6A-0x6F) ──
|
||||
PROFILE_SHAPE = 0x6A => "PROFILE_SHAPE",
|
||||
PROFILE_SHAPE = 0x6A => "PROFILE_SHAPE", // 占位：catch-all 保守 def
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
PROFILE_BRANCH = 0x6B => "PROFILE_BRANCH",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
PROFILE_CALL = 0x6C => "PROFILE_CALL",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
|
||||
// ── 并行 — 占位符 (0x70-0x75) ──
|
||||
FORK = 0x70 => "FORK",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
JOIN = 0x71 => "JOIN",
|
||||
GET_PRIVATE = 0x72 => "GET_PRIVATE",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
GET_PRIVATE = 0x72 => "GET_PRIVATE", // ext[0]=brand_reg，非 0 才产生 use
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B), SlotSpec::BrandReg],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
SET_PRIVATE = 0x73 => "SET_PRIVATE",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B), SlotSpec::BrandReg],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
INIT_PRIVATE = 0x74 => "INIT_PRIVATE",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
PRIVATE_BRAND_IN = 0x75 => "PRIVATE_BRAND_IN",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
|
||||
// ── 生成器 (0x76-0x78) ──
|
||||
YIELD = 0x76 => "YIELD", // rd=被让出的值（结果经 reg 0 交付，见 contract.rs）
|
||||
def = Some(SlotSpec::Reg0), uses = [SlotSpec::Slot(Slot::Rd)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
// 生成器 body 起点标记：调用时参数初始化完成后挂起于此，首次 next() 从这继续。
|
||||
SUSPEND_BODY = 0x77 => "SUSPEND_BODY",
|
||||
def = None, uses = [],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
// `yield*` 委托：rd=内层可迭代对象；委托完成值经 reg 0 交付（与 YIELD 同协议）。
|
||||
YIELD_STAR = 0x78 => "YIELD_STAR",
|
||||
def = Some(SlotSpec::Reg0), uses = [SlotSpec::Slot(Slot::Rd)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
// `await`：rd=被等待的值（PromiseResolve 包装）；挂起异步帧，恢复值经 reg 0 交付。
|
||||
AWAIT = 0x79 => "AWAIT",
|
||||
def = Some(SlotSpec::Reg0), uses = [SlotSpec::Slot(Slot::Rd)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
// for-await-of 步进：INIT(a=可迭代值) 取异步迭代器；NEXT 调用迭代器 next()，
|
||||
// 结果写 rd（随后由 AWAIT 等待）；DONE 读取 AWAIT 恢复值（a 槽）的 done 写 rd；
|
||||
// CLOSE 执行异步 IteratorClose（return() 结果 await 后继续）。
|
||||
FOR_AWAIT_OF_INIT = 0x7A => "FOR_AWAIT_OF_INIT",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
FOR_AWAIT_OF_NEXT = 0x7B => "FOR_AWAIT_OF_NEXT",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
FOR_AWAIT_OF_DONE = 0x7C => "FOR_AWAIT_OF_DONE",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
FOR_AWAIT_OF_CLOSE = 0x7D => "FOR_AWAIT_OF_CLOSE",
|
||||
def = None, uses = [],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
// 无条件新建 cell 并替换 cell_stack[cell_idx]，值为 regs[rd]——循环每迭代绑定
|
||||
// 把当前值拷入新 cell，本迭代闭包捕获新 cell（旧闭包仍指向旧 cell）。
|
||||
MAKE_CELL_FRESH = 0x7E => "MAKE_CELL_FRESH",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
|
||||
// ── 位运算 (0x80-0x8F) ──
|
||||
BIT_AND = 0x80 => "BIT_AND",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
BIT_OR = 0x81 => "BIT_OR",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
BIT_XOR = 0x82 => "BIT_XOR",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
SHL = 0x83 => "SHL",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
SHR = 0x84 => "SHR",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
USHR = 0x85 => "USHR",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
BIT_NOT = 0x86 => "BIT_NOT",
|
||||
TO_OBJECT = 0x87 => "TO_OBJECT",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A)],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
TO_OBJECT = 0x87 => "TO_OBJECT", // rd 原地转换（读且写）
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
COMPOUND_AND = 0x88 => "COMPOUND_AND",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
COMPOUND_OR = 0x89 => "COMPOUND_OR",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
COMPOUND_XOR = 0x8A => "COMPOUND_XOR",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
COMPOUND_SHL = 0x8B => "COMPOUND_SHL",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
COMPOUND_SHR = 0x8C => "COMPOUND_SHR",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
COMPOUND_USHR = 0x8D => "COMPOUND_USHR",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::Rd), SlotSpec::Slot(Slot::A)],
|
||||
pure = false, jump = false, term = false, ic = false,
|
||||
NULLISH = 0x8E => "NULLISH",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A), SlotSpec::Slot(Slot::B)],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
JMP_IF_NULLISH = 0x8F => "JMP_IF_NULLISH",
|
||||
def = None, uses = [SlotSpec::Slot(Slot::Rd)],
|
||||
pure = false, jump = true, term = true, ic = false,
|
||||
|
||||
// ── 杂项 (0xF0-0xFF) ──
|
||||
NOP = 0xF0 => "NOP",
|
||||
HALT = 0xF1 => "HALT",
|
||||
NOP = 0xF0 => "NOP", // 保持 def=Rd：catch-all 使 NOP(rd=None) 的 def_reg=Some(0)
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
HALT = 0xF1 => "HALT", // 隐式读 reg 0（顶层返回值）
|
||||
def = None, uses = [SlotSpec::Reg0],
|
||||
pure = false, jump = false, term = true, ic = false,
|
||||
TYPEOF = 0xF2 => "TYPEOF",
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [SlotSpec::Slot(Slot::A)],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
VOID = 0xF3 => "VOID",
|
||||
}
|
||||
|
||||
impl OpCode {
|
||||
/// 是否需要 IC 扩展字（inline cache 元数据跟随指令之后）。
|
||||
pub fn has_ic_ext_words(&self) -> bool {
|
||||
matches!(
|
||||
self,
|
||||
OpCode::IC_GET_PROP
|
||||
| OpCode::IC_SET_PROP
|
||||
| OpCode::MEMBER_INC
|
||||
| OpCode::MEMBER_DEC
|
||||
| OpCode::COMPOUND_MEMBER_ADD
|
||||
| OpCode::COMPOUND_MEMBER_SUB
|
||||
| OpCode::COMPOUND_MEMBER_MUL
|
||||
| OpCode::COMPOUND_MEMBER_DIV
|
||||
| OpCode::COMPOUND_MEMBER_MOD
|
||||
| OpCode::COMPOUND_MEMBER_EXP
|
||||
| OpCode::COMPOUND_MEMBER_BIT_AND
|
||||
| OpCode::COMPOUND_MEMBER_BIT_OR
|
||||
| OpCode::COMPOUND_MEMBER_BIT_XOR
|
||||
| OpCode::COMPOUND_MEMBER_SHL
|
||||
| OpCode::COMPOUND_MEMBER_SHR
|
||||
| OpCode::COMPOUND_MEMBER_USHR
|
||||
)
|
||||
}
|
||||
def = Some(SlotSpec::Slot(Slot::Rd)), uses = [],
|
||||
pure = true, jump = false, term = false, ic = false,
|
||||
}
|
||||
|
||||
/// 4 字节定长指令。
|
||||
@@ -360,6 +725,11 @@ pub fn encode_try_finally_begin(offset: i16) -> Instr {
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
/// 遍历全部有效 opcode（枚举字节序）。
|
||||
fn all_opcodes() -> impl Iterator<Item = OpCode> {
|
||||
(0u8..=u8::MAX).filter_map(|b| OpCode::try_from(b).ok())
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn opcode_table_is_byte_identical() {
|
||||
for byte in 0u8..=u8::MAX {
|
||||
@@ -388,11 +758,43 @@ mod tests {
|
||||
|
||||
assert!(OpCode::try_from(0x1B).is_err());
|
||||
assert!(OpCode::try_from(0xFF).is_err());
|
||||
}
|
||||
|
||||
let ic_count = (0u8..=u8::MAX)
|
||||
.filter_map(|b| OpCode::try_from(b).ok())
|
||||
.filter(OpCode::has_ic_ext_words)
|
||||
.count();
|
||||
assert_eq!(ic_count, 16);
|
||||
/// 全 opcode 表遍历：jump/terminator/ic 三集合与 lower/cfg/vm 硬编码集合逐字节一致。
|
||||
#[test]
|
||||
fn semantics_golden_sets() {
|
||||
let jump_set: Vec<u8> = all_opcodes().filter(|op| op.is_jump()).map(|op| op as u8).collect();
|
||||
assert_eq!(
|
||||
jump_set,
|
||||
[0x1E, 0x1F, 0x20, 0x21, 0x22, 0x2F, 0x34, 0x8F],
|
||||
"is_jump 集合（8 个跳转族，含 TRY_BEGIN/TRY_FINALLY_BEGIN label 回填）"
|
||||
);
|
||||
|
||||
let term_set: Vec<u8> = all_opcodes().filter(|op| op.is_terminator()).map(|op| op as u8).collect();
|
||||
assert_eq!(
|
||||
term_set,
|
||||
[0x1E, 0x1F, 0x20, 0x21, 0x22, 0x2E, 0x41, 0x8F, 0xF1],
|
||||
"is_terminator 集合（跳转族去 TRY_* 加 RETURN/HALT/THROW）"
|
||||
);
|
||||
|
||||
let ic_set: Vec<u8> = all_opcodes()
|
||||
.filter(|op| op.has_ic_ext_words())
|
||||
.map(|op| op as u8)
|
||||
.collect();
|
||||
assert_eq!(ic_set.len(), 16, "ic_ext 恰 16 个");
|
||||
}
|
||||
|
||||
/// 表驱动 ic_ext 与迁移前硬编码 16 集合逐项相等（旧表并存期的迁移校验）。
|
||||
#[test]
|
||||
fn semantics_ic_ext_matches_legacy_list() {
|
||||
let legacy = [
|
||||
0x50, 0x51, 0x59, 0x5A, 0x5D, 0x5E, 0x5F, 0x60, 0x61, 0x62, 0x64, 0x65, 0x66, 0x67, 0x68,
|
||||
0x69,
|
||||
];
|
||||
let tbl: Vec<u8> = all_opcodes()
|
||||
.filter(|op| op.has_ic_ext_words())
|
||||
.map(|op| op as u8)
|
||||
.collect();
|
||||
assert_eq!(tbl, legacy);
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user