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feat: 支持 try-catch 语法字节码编译及缓存

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爱特每羊队
2026-06-07 21:31:05 +08:00
parent 3f41fe9d71
commit bd70fecea5
6 changed files with 210 additions and 6 deletions
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crates/oxide_compiler/src/opcode.rs
+30 -1
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@@ -55,7 +55,14 @@ pub enum OpCode {
SWITCH_TABLE = 0x2C,
FOR_IN_CLEANUP = 0x2D,
// ── Variable (0x30-0x3F) ──
// -- Exception (0x2E-0x2F, 0x33-0x35) --
THROW = 0x2E,
TRY_BEGIN = 0x2F,
TRY_END = 0x33,
TRY_FINALLY_BEGIN = 0x34,
TRY_FINALLY_END = 0x35,
// -- Variable (0x30-0x32) --
LOAD_VAR = 0x30,
STORE_VAR = 0x31,
LOAD_CONST = 0x32,
@@ -178,9 +185,14 @@ impl TryFrom<u8> for OpCode {
0x2B => Ok(OpCode::FOR_IN_DONE),
0x2C => Ok(OpCode::SWITCH_TABLE),
0x2D => Ok(OpCode::FOR_IN_CLEANUP),
0x2E => Ok(OpCode::THROW),
0x2F => Ok(OpCode::TRY_BEGIN),
0x30 => Ok(OpCode::LOAD_VAR),
0x31 => Ok(OpCode::STORE_VAR),
0x32 => Ok(OpCode::LOAD_CONST),
0x33 => Ok(OpCode::TRY_END),
0x34 => Ok(OpCode::TRY_FINALLY_BEGIN),
0x35 => Ok(OpCode::TRY_FINALLY_END),
0x40 => Ok(OpCode::CALL),
0x41 => Ok(OpCode::RETURN),
0x42 => Ok(OpCode::CALL_NATIVE),
@@ -259,6 +271,11 @@ impl fmt::Display for OpCode {
OpCode::FOR_IN_DONE => "FOR_IN_DONE",
OpCode::SWITCH_TABLE => "SWITCH_TABLE",
OpCode::FOR_IN_CLEANUP => "FOR_IN_CLEANUP",
OpCode::THROW => "THROW",
OpCode::TRY_BEGIN => "TRY_BEGIN",
OpCode::TRY_END => "TRY_END",
OpCode::TRY_FINALLY_BEGIN => "TRY_FINALLY_BEGIN",
OpCode::TRY_FINALLY_END => "TRY_FINALLY_END",
OpCode::LOAD_VAR => "LOAD_VAR",
OpCode::STORE_VAR => "STORE_VAR",
OpCode::LOAD_CONST => "LOAD_CONST",
@@ -353,3 +370,15 @@ pub fn encode_jmp_if_true(rd: u8, offset: i16) -> Instr {
let hi = ((offset as u16 >> 8) & 0xFF) as u8;
encode(OpCode::JMP_IF_TRUE, rd, lo, hi)
}
pub fn encode_try_begin(offset: i16) -> Instr {
let lo = (offset as u16 & 0xFF) as u8;
let hi = ((offset as u16 >> 8) & 0xFF) as u8;
encode(OpCode::TRY_BEGIN, 0, lo, hi)
}
pub fn encode_try_finally_begin(offset: i16) -> Instr {
let lo = (offset as u16 & 0xFF) as u8;
let hi = ((offset as u16 >> 8) & 0xFF) as u8;
encode(OpCode::TRY_FINALLY_BEGIN, 0, lo, hi)
}