给所有代码添加try-catch

const core = require('@babel/core');
const types = require('babel-types');
const template = require('@babel/template');
const sourceCode = `
function sum(a,b) {
  return a+b+c;
}
`;

let tryStatementPlugin = {
    visitor: {
        FunctionDeclaration(nodePath) {
            let { node } = nodePath;
            let { id } = node;
            let nodeStatement = node.body;
            if (nodeStatement && types.isTryStatement(nodeStatement.body[0])) return;
            let catchStatement = template.statement('console.log(error)')();
            let catchClause = types.catchClause(
                types.identifier('error'),
                types.blockStatement([catchStatement])
            );
            let tryStatement = types.tryStatement(node.body, catchClause);
            var func = types.functionExpression(
                id,
                node.params,
                types.blockStatement([tryStatement]),
                node.generator,
                node.async
            );
            nodePath.replaceWith(func);
        },
    },
};

const targetCode = core.transform(sourceCode, {
    plugins: [tryStatementPlugin],
});
console.log(targetCode.code);