refactor: 拆分 class 相关编译逻辑

crates/oxide_compiler/src/class/static_block.rs

@@ -0,0 +1,32 @@
+use crate::compiler::{CompileCtx, Compiler};
+use oxide_parser::ClassElement;
+
+impl Compiler {
+    pub(crate) fn count_class_static_blocks(&self, elements: &[ClassElement], ctx: &mut CompileCtx) {
+        for element in elements {
+            if let ClassElement::StaticBlock(block) = element {
+                for stmt in &block.body {
+                    self.count_statement(stmt, ctx);
+                }
+            }
+        }
+    }
+
+    pub(crate) fn emit_class_static_blocks(
+        &self, elements: &[ClassElement], ctor_reg: u8, ctx: &mut CompileCtx,
+    ) -> Result<(), String> {
+        for element in elements {
+            if let ClassElement::StaticBlock(block) = element {
+                let saved_static_this = ctx.static_block_this_reg;
+                ctx.static_block_this_reg = Some(ctor_reg);
+                ctx.push_scope();
+                for stmt in &block.body {
+                    self.emit_statement(stmt, ctx)?;
+                }
+                ctx.pop_scope();
+                ctx.static_block_this_reg = saved_static_this;
+            }
+        }
+        Ok(())
+    }
+}