refactor: 集中 AST 缓存逻辑实现并清理无关依赖

crates/oxide_kernel/src/code_forge.rs

@@ -1,94 +1,11 @@
-use std::hash::{Hash, Hasher};
 use std::sync::Arc;
 
 use dashmap::DashMap;
 
 use oxide_compiler::compiler::Compiler;
 use oxide_compiler::module::CompiledModule;
-use oxide_parser::{Expression, Statement};
 
-pub fn structural_hash(program: &oxide_parser::Program) -> u64 {
-    let mut h = rustc_hash::FxHasher::default();
-
-    for stmt in &program.body {
-        hash_statement(stmt, &mut h);
-    }
-
-    h.finish()
-}
-
-fn hash_statement(stmt: &Statement, h: &mut rustc_hash::FxHasher) {
-    match stmt {
-        Statement::ExpressionStatement(es) => {
-            0u8.hash(h);
-            hash_expression(&es.expression, h);
-        }
-        Statement::VariableDeclaration(decl) => {
-            1u8.hash(h);
-            (decl.declarations.len() as u32).hash(h);
-        }
-        Statement::ReturnStatement(ret) => {
-            2u8.hash(h);
-            if let Some(arg) = &ret.argument {
-                hash_expression(arg, h);
-            }
-        }
-        Statement::IfStatement(ifs) => {
-            3u8.hash(h);
-            hash_expression(&ifs.test, h);
-            hash_statement(&ifs.consequent, h);
-            if let Some(alt) = &ifs.alternate {
-                hash_statement(alt, h);
-            }
-        }
-        Statement::WhileStatement(wh) => {
-            4u8.hash(h);
-            hash_expression(&wh.test, h);
-            hash_statement(&wh.body, h);
-        }
-        Statement::ForStatement(fr) => {
-            5u8.hash(h);
-            hash_statement(&fr.body, h);
-        }
-        Statement::BlockStatement(block) => {
-            6u8.hash(h);
-            for s in &block.body {
-                hash_statement(s, h);
-            }
-        }
-        _ => {
-            std::mem::discriminant(stmt).hash(h);
-        }
-    }
-}
-
-fn hash_expression(expr: &Expression, h: &mut rustc_hash::FxHasher) {
-    match expr {
-        Expression::BinaryExpression(bin) => {
-            0u8.hash(h);
-            std::mem::discriminant(&bin.operator).hash(h);
-            hash_expression(&bin.left, h);
-            hash_expression(&bin.right, h);
-        }
-        Expression::UnaryExpression(un) => {
-            1u8.hash(h);
-            std::mem::discriminant(&un.operator).hash(h);
-            hash_expression(&un.argument, h);
-        }
-        Expression::CallExpression(_) => {
-            2u8.hash(h);
-        }
-        Expression::LogicalExpression(log) => {
-            3u8.hash(h);
-            std::mem::discriminant(&log.operator).hash(h);
-            hash_expression(&log.left, h);
-            hash_expression(&log.right, h);
-        }
-        _ => {
-            std::mem::discriminant(expr).hash(h);
-        }
-    }
-}
+pub use oxide_compiler::compiler::structural_hash;
 
 pub struct CodeForge {
     map: DashMap<u64, Arc<CompiledModule>>,