Fix segment fault while engine resolution

Replaced import statement for bundled Marp Core into classic require.

marp-cli.js

@@ -2,9 +2,6 @@
 
 'use strict'
 
-const SegfaultHandler = require('segfault-handler')
-SegfaultHandler.registerHandler('crash.log')
-
 require('v8-compile-cache')
 require('./lib/marp-cli.js')
   .cliInterface(process.argv.slice(2))

package.json

@@ -129,7 +129,6 @@
     "rollup-plugin-pug": "^1.1.1",
     "rollup-plugin-terser": "^7.0.2",
     "sass": "^1.56.1",
-    "segfault-handler": "^1.3.0",
     "strip-ansi": "^7.0.1",
     "stylelint": "^14.15.0",
     "stylelint-config-prettier": "^9.0.4",

src/engine.ts

@@ -41,10 +41,11 @@ export class ResolvedEngine {
       process.env.NODE_ENV === 'test'
     ) {
       ResolvedEngine._defaultEngine = await ResolvedEngine.resolve([
-        '@marp-team/marp-core',
-        delayedEngineResolver(
-          async () => (await import('@marp-team/marp-core')).Marp
-        ),
+        '@marp-team/marp-core', // Manually-installed Marp Core
+
+        // Bundled Marp Core
+        // eslint-disable-next-line @typescript-eslint/no-var-requires -- import statement brings segmentation fault: https://github.com/marp-team/marp-cli/issues/487
+        delayedEngineResolver(async () => require('@marp-team/marp-core').Marp),
       ])
     }
     return ResolvedEngine._defaultEngine
@@ -62,7 +63,9 @@ export class ResolvedEngine {
           (from && importFrom.silent(path.dirname(path.resolve(from)), eng)) ||
           importFrom.silent(process.cwd(), eng)
 
-        if (resolved?.__esModule) resolved = resolved.default
+        if (resolved && typeof resolved === 'object' && 'default' in resolved) {
+          resolved = resolved.default
+        }
       } else if (typeof eng === 'object' && eng[delayedEngineResolverSymbol]) {
         resolved = await eng[delayedEngineResolverSymbol]()
       } else {
@@ -97,7 +100,9 @@ export class ResolvedEngine {
 
       if (
         expt === klass ||
-        (expt?.__esModule && Object.values(expt).includes(klass))
+        (expt &&
+          typeof expt === 'object' &&
+          Object.values(expt).includes(klass))
       )
         return moduleId
     }

yarn.lock

@@ -2168,13 +2168,6 @@ binary-extensions@^2.0.0:
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-2.2.0.tgz#75f502eeaf9ffde42fc98829645be4ea76bd9e2d"
   integrity sha512-jDctJ/IVQbZoJykoeHbhXpOlNBqGNcwXJKJog42E5HDPUwQTSdjCHdihjj0DlnheQ7blbT6dHOafNAiS8ooQKA==
 
-bindings@^1.2.1:
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.5.0.tgz#10353c9e945334bc0511a6d90b38fbc7c9c504df"
-  integrity sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==
-  dependencies:
-    file-uri-to-path "1.0.0"
-
 bl@^4.0.3:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/bl/-/bl-4.1.0.tgz#451535264182bec2fbbc83a62ab98cf11d9f7b3a"
@@ -3568,11 +3561,6 @@ file-entry-cache@^6.0.1:
   dependencies:
     flat-cache "^3.0.4"
 
-[email protected]:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz#553a7b8446ff6f684359c445f1e37a05dacc33dd"
-  integrity sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw==
-
 fill-range@^7.0.1:
   version "7.0.1"
   resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-7.0.1.tgz#1919a6a7c75fe38b2c7c77e5198535da9acdda40"
@@ -5521,11 +5509,6 @@ multistream@^4.1.0:
     once "^1.4.0"
     readable-stream "^3.6.0"
 
-nan@^2.14.0:
-  version "2.17.0"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.17.0.tgz#c0150a2368a182f033e9aa5195ec76ea41a199cb"
-  integrity sha512-2ZTgtl0nJsO0KQCjEpxcIr5D+Yv90plTitZt9JBfQvVJDS5seMl3FOvsh3+9CoYWXf/1l5OaZzzF6nDm4cagaQ==
-
 nanoid@^3.3.4:
   version "3.3.4"
   resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.3.4.tgz#730b67e3cd09e2deacf03c027c81c9d9dbc5e8ab"
@@ -6962,14 +6945,6 @@ saxes@^6.0.0:
   dependencies:
     xmlchars "^2.2.0"
 
-segfault-handler@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/segfault-handler/-/segfault-handler-1.3.0.tgz#054bc847832fa14f218ba6a79e42877501c8870e"
-  integrity sha512-p7kVHo+4uoYkr0jmIiTBthwV5L2qmWtben/KDunDZ834mbos+tY+iO0//HpAJpOFSQZZ+wxKWuRo4DxV02B7Lg==
-  dependencies:
-    bindings "^1.2.1"
-    nan "^2.14.0"
-
 "semver@2 || 3 || 4 || 5", semver@^5.4.1, semver@^5.5.0:
   version "5.7.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"