Added node_modules for the updating to work properly.

1 files changed, 57 insertions, 0 deletions

diff --git a/node_modules/babel-preset-current-node-syntax/src/index.js b/node_modules/babel-preset-current-node-syntax/src/index.js
new file mode 100644
index 0000000..e0243bd
--- /dev/null
+++ b/node_modules/babel-preset-current-node-syntax/src/index.js
@@ -0,0 +1,57 @@
+const tests = {
+  // ECMAScript 2018
+  "object-rest-spread": ["({ ...{} })", "({ ...x } = {})"], // Babel 7.2.0
+  "async-generators": ["async function* f() {}"], //  Babel 7.2.0
+
+  // ECMAScript 2019
+  "optional-catch-binding": ["try {} catch {}"], // Babel 7.2.0
+  "json-strings": ["'\\u2028'"], // Babel 7.2.0
+
+  // ECMAScript 2020
+  "bigint": ["1n"], // Babel 7.8.0
+  "optional-chaining": ["a?.b"], // Babel 7.9.0
+  "nullish-coalescing-operator": ["a ?? b"], // Babel 7.9.0
+  // import.meta is handled manually
+
+  // Stage 3
+  "numeric-separator": ["1_2"],
+  "class-properties": [
+    "(class { x = 1 })",
+    "(class { #x = 1 })",
+    "(class { #x() {} })",
+  ],
+  "logical-assignment-operators": ["a ||= b", "a &&= b", "a ??= c"],
+};
+
+const plugins = [];
+const works = (test) => {
+  try {
+    // Wrap the test in a function to only test the syntax, without executing it
+    (0, eval)(`(() => { ${test} })`);
+    return true;
+  } catch (_error) {
+    return false;
+  }
+};
+
+for (const [name, cases] of Object.entries(tests)) {
+  if (cases.some(works)) {
+    plugins.push(require.resolve(`@babel/plugin-syntax-${name}`));
+  }
+}
+
+// import.meta is only allowed in modules, and modules can only be evaluated
+// synchronously. For this reason, we cannot detect import.meta support at
+// runtime. It is supported starting from 10.4, so we can check the version.
+const major = parseInt(process.versions.node, 10);
+const minor = parseInt(process.versions.node.match(/^\d+\.(\d+)/)[1], 10);
+if (major > 10 || (major === 10 && minor >= 4)) {
+  plugins.push(require.resolve("@babel/plugin-syntax-import-meta"));
+}
+// Same for top level await - it is only supported in modules. It is supported
+// from 14.3.0
+if (major > 14 || (major === 14 && minor >= 3)) {
+  plugins.push(require.resolve("@babel/plugin-syntax-top-level-await"));
+}
+
+module.exports = () => ({ plugins });