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nodejs/test/parallel/test-code-cache.js
Joyee Cheung 472edc775d
src: disambiguate terms used to refer to builtins and addons
The term "native module" dates back to some of the oldest code
in the code base. Within the context of Node.js core it usually
refers to modules that are native to Node.js (e.g. fs, http),
but it can cause confusion for people who don't work on this
part of the code base, as "native module" can also refer to
native addons - which is even the case in some of the API
docs and error messages.

This patch tries to make the usage of these terms more consistent.
Now within the context of Node.js core:

- JavaScript scripts that are built-in to Node.js are now referred
  to as "built-in(s)". If they are available as modules,
  they can also be referred to as "built-in module(s)".
- Dynamically-linked shared objects that are loaded into
  the Node.js processes are referred to as "addons".

We will try to avoid using the term "native modules" because it could
be ambiguous.

Changes in this patch:

File names:
- node_native_module.h -> node_builtins.h,
- node_native_module.cc -> node_builtins.cc

C++ binding names:
- `native_module` -> `builtins`

`node::Environment`:
- `native_modules_without_cache` -> `builtins_without_cache`
- `native_modules_with_cache` -> `builtins_with_cache`
- `native_modules_in_snapshot` -> `builtins_in_cache`
- `native_module_require` -> `builtin_module_require`

`node::EnvSerializeInfo`:
- `native_modules` -> `builtins

`node::native_module::NativeModuleLoader`:
- `native_module` namespace -> `builtins` namespace
- `NativeModuleLoader` -> `BuiltinLoader`
- `NativeModuleRecordMap` -> `BuiltinSourceMap`
- `NativeModuleCacheMap` -> `BuiltinCodeCacheMap`
- `ModuleIds` -> `BuiltinIds`
- `ModuleCategories` -> `BuiltinCategories`
- `LoadBuiltinModuleSource` -> `LoadBuiltinSource`

`loader.js`:
- `NativeModule` -> `BuiltinModule` (the `NativeModule` name used in
  `process.moduleLoadList` is kept for compatibility)

And other clarifications in the documentation and comments.

PR-URL: https://github.com/nodejs/node/pull/44135
Fixes: https://github.com/nodejs/node/issues/44036
Reviewed-By: Jacob Smith <jacob@frende.me>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Jan Krems <jan.krems@gmail.com>
2022-08-09 01:36:49 +08:00

69 lines
2.1 KiB
JavaScript

// Flags: --expose-internals
'use strict';
// This test verifies that if the binary is compiled with code cache,
// and the cache is used when built in modules are compiled.
// Otherwise, verifies that no cache is used when compiling builtins.
const { isMainThread } = require('../common');
const assert = require('assert');
const {
internalBinding
} = require('internal/test/binding');
const {
getCacheUsage,
builtinCategories: { canBeRequired }
} = internalBinding('builtins');
for (const key of canBeRequired) {
require(`node:${key}`);
}
// The computation has to be delayed until we have done loading modules
const {
compiledWithoutCache,
compiledWithCache,
compiledInSnapshot
} = getCacheUsage();
function extractModules(list) {
return list.filter((m) => m.startsWith('NativeModule'))
.map((m) => m.replace('NativeModule ', ''));
}
const loadedModules = extractModules(process.moduleLoadList);
// Cross-compiled binaries do not have code cache, verifies that the builtins
// are all compiled without cache and we are doing the bookkeeping right.
if (!process.features.cached_builtins) {
assert(!process.config.variables.node_use_node_code_cache ||
process.execArgv.includes('--no-node-snapshot'));
if (isMainThread) {
assert.deepStrictEqual(compiledWithCache, new Set());
for (const key of loadedModules) {
assert(compiledWithoutCache.has(key),
`"${key}" should've been compiled without code cache`);
}
} else {
// TODO(joyeecheung): create a list of modules whose cache can be shared
// from the main thread to the worker thread and check that their
// cache are hit
assert.notDeepStrictEqual(compiledWithCache, new Set());
}
} else { // Native compiled
assert(process.config.variables.node_use_node_code_cache);
const wrong = [];
for (const key of loadedModules) {
if (key.startsWith('internal/deps/v8/tools')) {
continue;
}
if (!compiledWithCache.has(key) &&
compiledInSnapshot.indexOf(key) === -1) {
wrong.push(`"${key}" should've been compiled **with** code cache`);
}
}
assert.strictEqual(wrong.length, 0, wrong.join('\n'));
}