refactor: 拆分 counter statement 计数分发

crates/oxide_compiler/src/counter/stmt/basic.rs

@@ -0,0 +1,26 @@
+use super::*;
+
+impl Compiler {
+    pub(in crate::counter) fn count_expression_statement(
+        &self, stmt: &oxide_parser::ExpressionStatement<'_>, ctx: &mut CompileCtx,
+    ) {
+        self.count_expression(&stmt.expression, ctx);
+    }
+
+    pub(in crate::counter) fn count_return_statement(
+        &self, stmt: &oxide_parser::ReturnStatement<'_>, ctx: &mut CompileCtx,
+    ) {
+        if let Some(arg) = &stmt.argument {
+            self.count_expression(arg, ctx);
+        }
+        ctx.projected_pc += 1; // RETURN
+    }
+
+    pub(in crate::counter) fn count_break_statement(&self, ctx: &mut CompileCtx) {
+        ctx.projected_pc += 1; // JMP
+    }
+
+    pub(in crate::counter) fn count_continue_statement(&self, ctx: &mut CompileCtx) {
+        ctx.projected_pc += 1; // JMP
+    }
+}