1 files changed, 0 insertions, 209 deletions
diff --git a/node_modules/@babel/helpers/scripts/build-helper-metadata.js b/node_modules/@babel/helpers/scripts/build-helper-metadata.js
deleted file mode 100644
index 6a54fa0e..00000000
--- a/node_modules/@babel/helpers/scripts/build-helper-metadata.js
+++ /dev/null
@@ -1,209 +0,0 @@
-// NOTE: This file must be compatible with old Node.js versions, since it runs
-// during testing.
-
-/**
- * @typedef {Object} HelperMetadata
- * @property {string[]} globals
- * @property {{ [name: string]: string[] }} locals
- * @property {{ [name: string]: string[] }} dependencies
- * @property {string[]} exportBindingAssignments
- * @property {string} exportName
- */
-
-/**
- * Given a file AST for a given helper, get a bunch of metadata about it so that Babel can quickly render
- * the helper is whatever context it is needed in.
- *
- * @param {typeof import("@babel/core")} babel
- *
- * @returns {HelperMetadata}
- */
-export function getHelperMetadata(babel, code, helperName) {
-  const globals = new Set();
-  // Maps imported identifier name -> helper name
-  const dependenciesBindings = new Map();
-
-  let exportName;
-  const exportBindingAssignments = [];
-  // helper name -> reference paths
-  const dependencies = new Map();
-  // local variable name -> reference paths
-  const locals = new Map();
-
-  const spansToRemove = [];
-
-  const validateDefaultExport = decl => {
-    if (exportName) {
-      throw new Error(
-        `Helpers can have only one default export (in ${helperName})`
-      );
-    }
-
-    if (!decl.isFunctionDeclaration() || !decl.node.id) {
-      throw new Error(
-        `Helpers can only export named function declarations (in ${helperName})`
-      );
-    }
-  };
-
-  /** @type {import("@babel/traverse").Visitor} */
-  const dependencyVisitor = {
-    Program(path) {
-      for (const child of path.get("body")) {
-        if (child.isImportDeclaration()) {
-          if (
-            child.get("specifiers").length !== 1 ||
-            !child.get("specifiers.0").isImportDefaultSpecifier()
-          ) {
-            throw new Error(
-              `Helpers can only import a default value (in ${helperName})`
-            );
-          }
-          dependenciesBindings.set(
-            child.node.specifiers[0].local.name,
-            child.node.source.value
-          );
-          dependencies.set(child.node.source.value, []);
-          spansToRemove.push([child.node.start, child.node.end]);
-          child.remove();
-        }
-      }
-      for (const child of path.get("body")) {
-        if (child.isExportDefaultDeclaration()) {
-          const decl = child.get("declaration");
-          validateDefaultExport(decl);
-
-          exportName = decl.node.id.name;
-          spansToRemove.push([child.node.start, decl.node.start]);
-          child.replaceWith(decl.node);
-        } else if (
-          child.isExportNamedDeclaration() &&
-          child.node.specifiers.length === 1 &&
-          child.get("specifiers.0.exported").isIdentifier({ name: "default" })
-        ) {
-          const { name } = child.node.specifiers[0].local;
-
-          validateDefaultExport(child.scope.getBinding(name).path);
-
-          exportName = name;
-          spansToRemove.push([child.node.start, child.node.end]);
-          child.remove();
-        } else if (
-          process.env.IS_BABEL_OLD_E2E &&
-          child.isExportNamedDeclaration() &&
-          child.node.specifiers.length === 0
-        ) {
-          spansToRemove.push([child.node.start, child.node.end]);
-          child.remove();
-        } else if (
-          child.isExportAllDeclaration() ||
-          child.isExportNamedDeclaration()
-        ) {
-          throw new Error(`Helpers can only export default (in ${helperName})`);
-        }
-      }
-
-      path.scope.crawl();
-
-      const bindings = path.scope.getAllBindings();
-      Object.keys(bindings).forEach(name => {
-        if (dependencies.has(name)) return;
-
-        const binding = bindings[name];
-
-        const references = [
-          ...binding.path.getBindingIdentifierPaths(true)[name].map(makePath),
-          ...binding.referencePaths.map(makePath),
-        ];
-        for (const violation of binding.constantViolations) {
-          violation.getBindingIdentifierPaths(true)[name].forEach(path => {
-            references.push(makePath(path));
-          });
-        }
-
-        locals.set(name, references);
-      });
-    },
-    ReferencedIdentifier(child) {
-      const name = child.node.name;
-      const binding = child.scope.getBinding(name);
-      if (!binding) {
-        if (dependenciesBindings.has(name)) {
-          dependencies
-            .get(dependenciesBindings.get(name))
-            .push(makePath(child));
-        } else if (name !== "arguments" || child.scope.path.isProgram()) {
-          globals.add(name);
-        }
-      }
-    },
-    AssignmentExpression(child) {
-      const left = child.get("left");
-
-      if (!(exportName in left.getBindingIdentifiers())) return;
-
-      if (!left.isIdentifier()) {
-        throw new Error(
-          `Only simple assignments to exports are allowed in helpers (in ${helperName})`
-        );
-      }
-
-      const binding = child.scope.getBinding(exportName);
-
-      if (binding && binding.scope.path.isProgram()) {
-        exportBindingAssignments.push(makePath(child));
-      }
-    },
-  };
-
-  babel.transformSync(code, {
-    configFile: false,
-    babelrc: false,
-    plugins: [() => ({ visitor: dependencyVisitor })],
-  });
-
-  if (!exportName) throw new Error("Helpers must have a named default export.");
-
-  // Process these in reverse so that mutating the references does not invalidate any later paths in
-  // the list.
-  exportBindingAssignments.reverse();
-
-  spansToRemove.sort(([start1], [start2]) => start2 - start1);
-  for (const [start, end] of spansToRemove) {
-    code = code.slice(0, start) + code.slice(end);
-  }
-
-  return [
-    code,
-    {
-      globals: Array.from(globals),
-      locals: Object.fromEntries(locals),
-      dependencies: Object.fromEntries(dependencies),
-      exportBindingAssignments,
-      exportName,
-    },
-  ];
-}
-
-function makePath(path) {
-  const parts = [];
-
-  for (; path.parentPath; path = path.parentPath) {
-    parts.push(path.key);
-    if (path.inList) parts.push(path.listKey);
-  }
-
-  return parts.reverse().join(".");
-}
-
-export function stringifyMetadata(metadata) {
-  return `\
-    {
-      globals: ${JSON.stringify(metadata.globals)},
-      locals: ${JSON.stringify(metadata.locals)},
-      exportBindingAssignments: ${JSON.stringify(metadata.exportBindingAssignments)},
-      exportName: ${JSON.stringify(metadata.exportName)},
-      dependencies: ${JSON.stringify(metadata.dependencies)},
-    }
-  `;
-}