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📄 no-useless-empty-export.ts

📊 Analysis Summary

Metric	Count
🔧 Functions	6
📦 Imports	4
📊 Variables & Constants	3

📚 Table of Contents

• Imports
• Variables & Constants
• Functions

🛠️ File Location:

📂 packages/eslint-plugin/src/rules/no-useless-empty-export.ts

📦 Imports

Name	Source
TSESTree	@typescript-eslint/utils
AST_NODE_TYPES	@typescript-eslint/utils
createRule	../util
isDefinitionFile	../util

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Variables & Constants

Name	Type	Kind	Value	Exported
exportOrImportNodeTypes	Set<any>	const	`new Set([
AST_NODE_TYPES.ExportAllDeclaration,
AST_NODE_TYPES.ExportDefaultDeclaration,
AST_NODE_TYPES.ExportNamedDeclaration,
AST_NODE_TYPES.ExportSpecifier,
AST_NODE_TYPES.ImportDeclaration,
AST_NODE_TYPES.TSExportAssignment,
AST_NODE_TYPES.TSImportEqualsDeclaration,
])`	✗
emptyExports	TSESTree.ExportNamedDeclaration[]	const	[]	✗
foundOtherExport	boolean	let/var	false	✗

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Functions

isEmptyExport(node: TSESTree.Node): node is TSESTree.ExportNamedDeclaration

Code

function isEmptyExport(
  node: TSESTree.Node,
): node is TSESTree.ExportNamedDeclaration {
  return (
    node.type === AST_NODE_TYPES.ExportNamedDeclaration &&
    node.specifiers.length === 0 &&
    !node.declaration
  );
}

• Parameters:
• node: TSESTree.Node
• Return Type: node is TSESTree.ExportNamedDeclaration

checkNode(node: TSESTree.Program | TSESTree.TSModuleDeclaration): void

Code

function checkNode(
      node: TSESTree.Program | TSESTree.TSModuleDeclaration,
    ): void {
      if (!Array.isArray(node.body)) {
        return;
      }

      const emptyExports: TSESTree.ExportNamedDeclaration[] = [];
      let foundOtherExport = false;

      for (const statement of node.body) {
        if (isEmptyExport(statement)) {
          emptyExports.push(statement);
        } else if (exportOrImportNodeTypes.has(statement.type)) {
          foundOtherExport = true;
        }
      }

      if (foundOtherExport) {
        for (const emptyExport of emptyExports) {
          context.report({
            node: emptyExport,
            messageId: 'uselessExport',
            fix: fixer => fixer.remove(emptyExport),
          });
        }
      }
    }

• Parameters:
• node: TSESTree.Program | TSESTree.TSModuleDeclaration
• Return Type: void
• Calls:
• Array.isArray
• isEmptyExport
• emptyExports.push
• exportOrImportNodeTypes.has
• context.report
• fixer.remove

fix(fixer: any): any

Code

fixer => fixer.remove(emptyExport)

• Parameters:
• fixer: any
• Return Type: any
• Calls:
• fixer.remove

fix(fixer: any): any

Code

fixer => fixer.remove(emptyExport)

• Parameters:
• fixer: any
• Return Type: any
• Calls:
• fixer.remove

fix(fixer: any): any

Code

fixer => fixer.remove(emptyExport)

• Parameters:
• fixer: any
• Return Type: any
• Calls:
• fixer.remove

fix(fixer: any): any

Code

fixer => fixer.remove(emptyExport)

• Parameters:
• fixer: any
• Return Type: any
• Calls:
• fixer.remove

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