1 files changed, 125 insertions, 0 deletions
diff --git a/node_modules/@babel/helper-create-class-features-plugin/lib/features.js b/node_modules/@babel/helper-create-class-features-plugin/lib/features.js
new file mode 100644
index 00000000..a4460a6f
--- /dev/null
+++ b/node_modules/@babel/helper-create-class-features-plugin/lib/features.js
@@ -0,0 +1,125 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.FEATURES = void 0;
+exports.enableFeature = enableFeature;
+exports.isLoose = isLoose;
+exports.shouldTransform = shouldTransform;
+var _decorators = require("./decorators.js");
+const FEATURES = Object.freeze({
+  fields: 1 << 1,
+  privateMethods: 1 << 2,
+  decorators: 1 << 3,
+  privateIn: 1 << 4,
+  staticBlocks: 1 << 5
+});
+exports.FEATURES = FEATURES;
+const featuresSameLoose = new Map([[FEATURES.fields, "@babel/plugin-transform-class-properties"], [FEATURES.privateMethods, "@babel/plugin-transform-private-methods"], [FEATURES.privateIn, "@babel/plugin-transform-private-property-in-object"]]);
+const featuresKey = "@babel/plugin-class-features/featuresKey";
+const looseKey = "@babel/plugin-class-features/looseKey";
+const looseLowPriorityKey = "@babel/plugin-class-features/looseLowPriorityKey/#__internal__@babel/preset-env__please-overwrite-loose-instead-of-throwing";
+function enableFeature(file, feature, loose) {
+  if (!hasFeature(file, feature) || canIgnoreLoose(file, feature)) {
+    file.set(featuresKey, file.get(featuresKey) | feature);
+    if (loose === "#__internal__@babel/preset-env__prefer-true-but-false-is-ok-if-it-prevents-an-error") {
+      setLoose(file, feature, true);
+      file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) | feature);
+    } else if (loose === "#__internal__@babel/preset-env__prefer-false-but-true-is-ok-if-it-prevents-an-error") {
+      setLoose(file, feature, false);
+      file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) | feature);
+    } else {
+      setLoose(file, feature, loose);
+    }
+  }
+  let resolvedLoose;
+  let higherPriorityPluginName;
+  for (const [mask, name] of featuresSameLoose) {
+    if (!hasFeature(file, mask)) continue;
+    const loose = isLoose(file, mask);
+    if (canIgnoreLoose(file, mask)) {
+      continue;
+    } else if (resolvedLoose === !loose) {
+      throw new Error("'loose' mode configuration must be the same for @babel/plugin-transform-class-properties, " + "@babel/plugin-transform-private-methods and " + "@babel/plugin-transform-private-property-in-object (when they are enabled).");
+    } else {
+      resolvedLoose = loose;
+      higherPriorityPluginName = name;
+    }
+  }
+  if (resolvedLoose !== undefined) {
+    for (const [mask, name] of featuresSameLoose) {
+      if (hasFeature(file, mask) && isLoose(file, mask) !== resolvedLoose) {
+        setLoose(file, mask, resolvedLoose);
+        console.warn(`Though the "loose" option was set to "${!resolvedLoose}" in your @babel/preset-env ` + `config, it will not be used for ${name} since the "loose" mode option was set to ` + `"${resolvedLoose}" for ${higherPriorityPluginName}.\nThe "loose" option must be the ` + `same for @babel/plugin-transform-class-properties, @babel/plugin-transform-private-methods ` + `and @babel/plugin-transform-private-property-in-object (when they are enabled): you can ` + `silence this warning by explicitly adding\n` + `\t["${name}", { "loose": ${resolvedLoose} }]\n` + `to the "plugins" section of your Babel config.`);
+      }
+    }
+  }
+}
+function hasFeature(file, feature) {
+  return !!(file.get(featuresKey) & feature);
+}
+function isLoose(file, feature) {
+  return !!(file.get(looseKey) & feature);
+}
+function setLoose(file, feature, loose) {
+  if (loose) file.set(looseKey, file.get(looseKey) | feature);else file.set(looseKey, file.get(looseKey) & ~feature);
+  file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) & ~feature);
+}
+function canIgnoreLoose(file, feature) {
+  return !!(file.get(looseLowPriorityKey) & feature);
+}
+function shouldTransform(path, file) {
+  let decoratorPath = null;
+  let publicFieldPath = null;
+  let privateFieldPath = null;
+  let privateMethodPath = null;
+  let staticBlockPath = null;
+  if ((0, _decorators.hasOwnDecorators)(path.node)) {
+    decoratorPath = path.get("decorators.0");
+  }
+  for (const el of path.get("body.body")) {
+    if (!decoratorPath && (0, _decorators.hasOwnDecorators)(el.node)) {
+      decoratorPath = el.get("decorators.0");
+    }
+    if (!publicFieldPath && el.isClassProperty()) {
+      publicFieldPath = el;
+    }
+    if (!privateFieldPath && el.isClassPrivateProperty()) {
+      privateFieldPath = el;
+    }
+    if (!privateMethodPath && el.isClassPrivateMethod != null && el.isClassPrivateMethod()) {
+      privateMethodPath = el;
+    }
+    if (!staticBlockPath && el.isStaticBlock != null && el.isStaticBlock()) {
+      staticBlockPath = el;
+    }
+  }
+  if (decoratorPath && privateFieldPath) {
+    throw privateFieldPath.buildCodeFrameError("Private fields in decorated classes are not supported yet.");
+  }
+  if (decoratorPath && privateMethodPath) {
+    throw privateMethodPath.buildCodeFrameError("Private methods in decorated classes are not supported yet.");
+  }
+  if (decoratorPath && !hasFeature(file, FEATURES.decorators)) {
+    throw path.buildCodeFrameError("Decorators are not enabled." + "\nIf you are using " + '["@babel/plugin-proposal-decorators", { "version": "legacy" }], ' + 'make sure it comes *before* "@babel/plugin-transform-class-properties" ' + "and enable loose mode, like so:\n" + '\t["@babel/plugin-proposal-decorators", { "version": "legacy" }]\n' + '\t["@babel/plugin-transform-class-properties", { "loose": true }]');
+  }
+  if (privateMethodPath && !hasFeature(file, FEATURES.privateMethods)) {
+    throw privateMethodPath.buildCodeFrameError("Class private methods are not enabled. " + "Please add `@babel/plugin-transform-private-methods` to your configuration.");
+  }
+  if ((publicFieldPath || privateFieldPath) && !hasFeature(file, FEATURES.fields) && !hasFeature(file, FEATURES.privateMethods)) {
+    throw path.buildCodeFrameError("Class fields are not enabled. " + "Please add `@babel/plugin-transform-class-properties` to your configuration.");
+  }
+  if (staticBlockPath && !hasFeature(file, FEATURES.staticBlocks)) {
+    throw path.buildCodeFrameError("Static class blocks are not enabled. " + "Please add `@babel/plugin-transform-class-static-block` to your configuration.");
+  }
+  if (decoratorPath || privateMethodPath || staticBlockPath) {
+    return true;
+  }
+  if ((publicFieldPath || privateFieldPath) && hasFeature(file, FEATURES.fields)) {
+    return true;
+  }
+  return false;
+}
+
+//# sourceMappingURL=features.js.map