feat: import defer 阶段标志纳入模块哈希键

Cargo.lock

@@ -1160,7 +1160,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_builtins"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "chrono",
  "fast-float",
@@ -1185,7 +1185,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_bytecode"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "num-bigint",
  "oxide_log",
@@ -1193,7 +1193,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_cfg"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "oxide_bytecode",
  "oxide_emit",
@@ -1204,7 +1204,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_cli"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "ansi_term",
  "bumpalo",
@@ -1226,7 +1226,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_code_cache"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "lru",
  "oxide_bytecode",
@@ -1235,7 +1235,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_compiler"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "oxide_bytecode",
  "oxide_cfg",
@@ -1255,7 +1255,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_dce"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "oxide_bytecode",
  "oxide_cfg",
@@ -1269,7 +1269,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_emit"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "num-bigint",
  "oxc_allocator",
@@ -1284,7 +1284,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_engine"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "oxide_bytecode",
  "oxide_compiler",
@@ -1296,7 +1296,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_ir"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "oxide_bytecode",
  "oxide_log",
@@ -1305,7 +1305,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_kernel"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "bumpalo",
  "dashmap",
@@ -1319,7 +1319,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_liveness"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "oxide_bytecode",
  "oxide_cfg",
@@ -1331,7 +1331,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_log"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "tracing",
  "tracing-appender",
@@ -1340,7 +1340,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_parser"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "oxc_allocator",
  "oxc_ast",
@@ -1355,7 +1355,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_regalloc"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "oxide_bytecode",
  "oxide_cfg",
@@ -1371,7 +1371,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_runtime_api"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "num-bigint",
  "num-traits",
@@ -1384,7 +1384,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_test262"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "oxide_bytecode",
  "oxide_compiler",
@@ -1402,7 +1402,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_types"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "bumpalo",
  "dashmap",
@@ -1415,7 +1415,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_vm"
-version = "0.8.102"
+version = "0.8.103"
 dependencies = [
  "bumpalo",
  "chrono",

Cargo.toml

@@ -23,7 +23,7 @@ members = [
 ]
 
 [workspace.package]
-version = "0.8.102"
+version = "0.8.103"
 edition = "2021"
 license = "MIT"
 rust-version = "1.80"

crates/oxide_compiler/src/hash/statement.rs

@@ -98,6 +98,9 @@ pub(super) fn hash_statement(stmt: &Statement, h: &mut rustc_hash::FxHasher, inc
         }
         Statement::ImportDeclaration(imp) => {
             imp.source.value.hash(h);
+            // import 阶段标志（import defer / source-phase imports）：同源声明
+            // 语义不同，须区分缓存键，防 defer 与非 defer 碰撞复用错误字节码。
+            imp.phase.map(|p| p as u8).hash(h);
             if let Some(specifiers) = &imp.specifiers {
                 (specifiers.len() as u32).hash(h);
                 for spec in specifiers {

crates/oxide_compiler/tests/hash_collision_tests.rs

@@ -86,6 +86,27 @@ fn import_expression_distinguished() {
     assert_ne!(compiled("import('./a.js')"), compiled("import('./a.js', { with: { type: 'json' } })"));
 }
 
+#[test]
+fn import_defer_distinguished() {
+    // import defer 与普通 namespace import 语义不同（defer 不触发依赖求值）：
+    // 修复前 phase 不入 hash，两者哈希相同 → 缓存碰撞复用错误字节码。
+    assert_ne!(
+        compiled("import defer * as ns from './x.js'"),
+        compiled("import * as ns from './x.js'"),
+        "import defer vs plain namespace import must differ"
+    );
+    assert_ne!(
+        structural("import defer * as ns from './x.js'"),
+        structural("import * as ns from './x.js'"),
+        "defer flag must be part of the structural key too"
+    );
+    // 同源等价回归
+    assert_eq!(
+        compiled("import defer * as ns from './x.js'"),
+        compiled("import defer * as ns from './x.js'")
+    );
+}
+
 #[test]
 fn structural_hash_ignores_binding_names() {
     // 结构哈希忽略绑定名：仅参数/变量改名后哈希相等。