refactor: 清除旧代码并展开 crate

crates/oxide_compiler/src/stmt/exception/throw.rs

@@ -0,0 +1,19 @@
+use crate::compiler::{CompileCtx, Compiler};
+use oxide_bytecode::opcode::{self, OpCode};
+use oxide_parser::Statement;
+
+impl Compiler {
+    pub(crate) fn count_throw_statement(&self, stmt: &oxide_parser::ThrowStatement<'_>, ctx: &mut CompileCtx) {
+        self.count_expression(&stmt.argument, ctx);
+        ctx.projected_pc += 1;
+    }
+
+    pub(crate) fn emit_throw_statement(&self, stmt: &Statement, ctx: &mut CompileCtx) -> Result<Option<u8>, String> {
+        let Statement::ThrowStatement(ts) = stmt else {
+            return Ok(None);
+        };
+        let exc_reg = self.emit_expression(&ts.argument, ctx)?;
+        ctx.emit(opcode::encode(OpCode::THROW, exc_reg, 0, 0));
+        Ok(None)
+    }
+}