Missing Spreadoperator compliance in dict

[Anton3210]

Running a dict containing a Spreadoperator gives an error:

babel/parser.parse() on this :
const a = {'a':'b','b':'b','c':'c'};
const b = {'z':'z'};
const y = {...a,...b};

gives Following error:

Error: Line 3: Unexpected token ...
at ErrorHandler.constructError (/Users/anton/Documents/firebase/NodeJs/node_modules/.pnpm/esprima@4.0.1/node_modules/esprima/dist/esprima.js:5012:22)
at ErrorHandler.createError (/Users/anton/Documents/firebase/NodeJs/node_modules/.pnpm/esprima@4.0.1/node_modules/esprima/dist/esprima.js:5028:27)
at Parser.unexpectedTokenError (/Users/anton/Documents/firebase/NodeJs/node_modules/.pnpm/esprima@4.0.1/node_modules/esprima/dist/esprima.js:1985:39)
at Parser.throwUnexpectedToken (/Users/anton/Documents/firebase/NodeJs/node_modules/.pnpm/esprima@4.0.1/node_modules/esprima/dist/esprima.js:1995:21)
at Parser.parseObjectPropertyKey (/Users/anton/Documents/firebase/NodeJs/node_modules/.pnpm/esprima@4.0.1/node_modules/esprima/dist/esprima.js:2499:33)
at Parser.parseObjectProperty (/Users/anton/Documents/firebase/NodeJs/node_modules/.pnpm/esprima@4.0.1/node_modules/esprima/dist/esprima.js:2534:25)
at Parser.parseObjectInitializer (/Users/anton/Documents/firebase/NodeJs/node_modules/.pnpm/esprima@4.0.1/node_modules/esprima/dist/esprima.js:2602:35)
at Parser.inheritCoverGrammar (/Users/anton/Documents/firebase/NodeJs/node_modules/.pnpm/esprima@4.0.1/node_modules/esprima/dist/esprima.js:2285:37)
at Parser.parsePrimaryExpression (/Users/anton/Documents/firebase/NodeJs/node_modules/.pnpm/esprima@4.0.1/node_modules/esprima/dist/esprima.js:2354:38)
at Parser.inheritCoverGrammar (/Users/anton/Documents/firebase/NodeJs/node_modules/.pnpm/esprima@4.0.1/node_modules/esprima/dist/esprima.js:2285:37) {
index: 69,
lineNumber: 3,
description: 'Unexpected token ...'
}

[mmiscool]

I am getting the same error.
Is this library still being maintained at all?

[Meir017]

@mmiscool try here https://github.com/node-projects/esprima-next

[Anton3210]

I´m using acorn now

import * as acorn_walk from 'acorn-walk';
import { ancestor } from 'acorn-walk';
function findNodeByValue(ast, value) {
let path = [];
let callback = function(){}
let functionBase = {...acorn_walk.base};
functionBase.Literal = function(node,_state,ancestor){
count++;
if (node.value==value) {
path.push({"node":node,"ancestor":ancestor})
}
}
acorn_walk.fullAncestor(ast,function(a,b,c){},functionBase
);//node, callback, baseVisitor, state, override

return path;

}
ast = acorn.parse(strings,{
// parse in strict mode and allow module declarations
sourceType: "script",
ecmaVersion : 12,

plugins: [
// enable jsx and flow syntax
"jsx",
"flow",
],
})

[mmiscool]

@mmiscool try here https://github.com/node-projects/esprima-next

This package worked perfectly for me. Thanks for pointing it out.