I have a.x = b.y to be the AST node:
{
"type": "ExpressionStatement",
"start": 122,
"end": 131,
"expression": {
"type": "AssignmentExpression",
"start": 122,
"end": 131,
"operator": "=",
"left": {
"type": "MemberExpression",
"start": 122,
"end": 125,
"object": {
"type": "Identifier",
"start": 122,
"end": 123,
"name": "a"
},
"property": {
"type": "Identifier",
"start": 124,
"end": 125,
"name": "x"
},
"computed": false,
"optional": false
},
"right": {
"type": "MemberExpression",
"start": 128,
"end": 131,
"object": {
"type": "Identifier",
"start": 128,
"end": 129,
"name": "b"
},
"property": {
"type": "Identifier",
"start": 130,
"end": 131,
"name": "y"
},
"computed": false,
"optional": false
}
}
}
What does computed and optional mean? What are some examples?
This is what a.b[c.d[e].f].g looks like:
{
"type": "Program",
"body": [
{
"type": "MemberExpression",
"object": {
"type": "MemberExpression",
"object": {
"type": "MemberExpression",
"object": {
"type": "Identifier",
"start": 1,
"end": 2,
"name": "a"
},
"property": {
"type": "Identifier",
"start": 3,
"end": 4,
"name": "b"
},
"computed": false
},
"property": {
"type": "MemberExpression",
"object": {
"type": "MemberExpression",
"object": {
"type": "MemberExpression",
"object": {
"type": "Identifier",
"start": 5,
"end": 6,
"name": "c"
},
"property": {
"type": "Identifier",
"start": 7,
"end": 8,
"name": "d"
},
"computed": false
},
"property": {
"type": "Identifier",
"start": 9,
"end": 10,
"name": "e"
},
"computed": true
},
"property": {
"type": "Identifier",
"start": 12,
"end": 13,
"name": "f"
},
"computed": false
},
"computed": true
},
"property": {
"type": "Identifier",
"start": 15,
"end": 16,
"name": "g"
},
"computed": false
}
]
}
The computed is for object[property].