Parentheses are missing when BinaryExpression child is nullish expression #890
Description
Test Case:
const b = recast.types.builders;
const ast = recast.parse('');
const add = ast.program.body[0];
ast.program.body[0] = b.variableDeclaration(
'let',
[b.variableDeclarator(
b.identifier('a'),
b.binaryExpression(
"+",
b.logicalExpression(
"??",
b.optionalMemberExpression(
b.identifier('c'),
b.identifier('b')
),
b.numericLiteral(1)
),
b.numericLiteral(1)
)
)]
);
console.log(recast.print(ast).code);Now:
let a = c?.b ?? 1 + 1;Except:
let a = (c?.b ?? 1) + 1;It work well if logic expression operator is '||' or '&&'。