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How to use the file function from @babel/types

Find comprehensive JavaScript @babel/types.file code examples handpicked from public code repositorys.

@babel/types.file is an object that represents a Babel AST of an entire file.

traverseNodePath.js

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    const file = t.file(t.program([nodeOrPath]));
    traverse(file, visitor);
  } else {
    // Expression should be wrapped in expression statement.
    // Only can traverse file path.
    const file = t.file(t.program([t.expressionStatement(nodeOrPath)]));
    traverse(file, visitor);
  }
};

+ 15 other calls in file

common.js

GitHub: nwjs/v8

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}


function concatPrograms(inputs) {
  // Concatentate programs.
  const resultProgram = babelTypes.program([]);
  const result = babelTypes.file(resultProgram, [], null);


  for (const input of inputs) {
    const ast = input.ast.program;
    resultProgram.body = resultProgram.body.concat(ast.body);

How does @babel/types.file work?

@babel/types.file is a function in the Babel Types package that creates an AST (Abstract Syntax Tree) node representing a parsed JavaScript file. It contains information such as the file name, program body, comments, and any attached source maps.

next.js

GitHub: RocketSoftware/carbon

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  files['index.js'].push(...m.source);
  files['index.js'].push(template.ast(`export { ${m.name} };`));
}

files['index.js'] = t.file(t.program(files['index.js']));
files['index.js'] = generate(files['index.js']).code;

const defaultVirtualOptions = {
  // Each of our Icon modules use the "./Icon.js" path to import this base

+ 11 other calls in file

index.js

GitHub: deecewan/jsroutes-types

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    }
    return [required, [requiredObject]].map((req) => createType(req));
  })
  .reduce((acc, curr) => [...acc, ...curr], []);

const prog = t.file(t.program([stringableType, validValueType, ...types]));

const generated = generate(prog, {});

const code = `/**

+ 30 other calls in file

Ai Example

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const t = require("@babel/types");

const program = t.program([
  // your code here
]);

const ast = t.file(
  // the ast node representing the module's code
  program,
  // sourceType of the module
  "module",
  // whether the AST represents an ECMAScript module
  true
);

console.log(ast);

This will create an AST node representing a JavaScript module, with the provided program as its body.

astgen.js

GitHub: ruleenginejs/ruleengine

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    ? generateDefaultExport
    : generateModuleExport;
  statements.push(exportFn(PIPELINE_VAR));


  const program = t.program(statements);
  const ast = t.file(program);


  return ast;
}

+ 57 other calls in file

dependencies.js

GitHub: harrysolovay/parcel

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  });
}

function evaluateExpression(node) {
  // Wrap the node in a standalone program so we can traverse it
  node = types.file(types.program([types.expressionStatement(node)]));

  // Find the first expression and evaluate it.
  let res = null;
  traverse(node, {

+ 3 other calls in file

generator.cjs

GitHub: Airkro/road-to-rome

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  source,
  path,
  to: pascalCase(to),
}));

const ast = t.file(
  t.program([...statement(items), variable(items), logger(items)]),
);

const { code } = generator.default(ast, {}, '');

+ 4 other calls in file

JSConcatPackager.js

GitHub: EnixCoda/TeslaPlayback

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    return {${exposed.join(', ')}};
  `);
}

try {
  let ast = t.file(t.program(this.statements));
  let {code: output} = concat(this, ast);

  if (!this.options.minify) {
    output = '\n' + output + '\n';

index.js

GitHub: Raton001/E-commerce-Rest-API

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  });
}

const fn = () => {
  const file = {
    ast: t.file(helper.ast())
  };

  if (fileClass) {
    return new fileClass({

+ 48 other calls in file

JsFileWrapping.js

GitHub: shubhamssand/HomeAway-Prototype

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importAllName,
dependencyMapName);

const factory = functionFromProgram(fileAst.program, params);
const def = t.callExpression(t.identifier('__d'), [factory]);
const ast = t.file(t.program([t.expressionStatement(def)]));

const requireName = renameRequires(ast);

return { ast, requireName };

+ 3 other calls in file

dependencies.js

GitHub: riya-gupta13/Learning

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  });
}


function evaluateExpression(node) {
  // Wrap the node in a standalone program so we can traverse it
  node = types.file(types.program([types.expressionStatement(node)])); // Find the first expression and evaluate it.


  let res = null;
  traverse(node, {
    Expression(path) {

index.js

GitHub: hrishimk/babel-import-mod

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                throw "No declaration for node";
            }
        }
        if (imports.length) {
            let p = types.program(imports);
            let f = types.file(p);
            ex_path.replaceWith(f);
        }
    }
});

next.js

GitHub: JeromeFitz/carbon

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  statements.push(...source);

  // Export statement
  statements.push(template.ast(`export default ${moduleName};`));

  const file = t.file(t.program(statements));
  const { code } = generate(file);

  return code;
}

+ 3 other calls in file

Other functions in @babel/types

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