validate parentheses in the left-hand side of assignment expressions (#10576)

* invalid left-hand assignments based on parenthesis

* validate against nested ParenthesizedExpressions
This commit is contained in:
Bowei Han 2019-12-09 20:29:02 -05:00 committed by Huáng Jùnliàng
parent de1fa902f0
commit 20e43ad103
48 changed files with 2811 additions and 27 deletions

View File

@ -41,12 +41,6 @@ import {
SCOPE_PROGRAM,
} from "../util/scopeflags";
const unwrapParenthesizedExpression = node => {
return node.type === "ParenthesizedExpression"
? unwrapParenthesizedExpression(node.expression)
: node;
};
export default class ExpressionParser extends LValParser {
// Forward-declaration: defined in statement.js
+parseBlock: (
@ -213,26 +207,6 @@ export default class ExpressionParser extends LValParser {
this.checkLVal(left, undefined, undefined, "assignment expression");
const maybePattern = unwrapParenthesizedExpression(left);
let patternErrorMsg;
if (maybePattern.type === "ObjectPattern") {
patternErrorMsg = "`({a}) = 0` use `({a} = 0)`";
} else if (maybePattern.type === "ArrayPattern") {
patternErrorMsg = "`([a]) = 0` use `([a] = 0)`";
}
if (
patternErrorMsg &&
((left.extra && left.extra.parenthesized) ||
left.type === "ParenthesizedExpression")
) {
this.raise(
maybePattern.start,
`You're trying to assign to a parenthesized expression, eg. instead of ${patternErrorMsg}`,
);
}
this.next();
node.right = this.parseMaybeAssign(noIn);
return this.finishNode(node, "AssignmentExpression");

View File

@ -22,6 +22,12 @@ import {
import { NodeUtils } from "./node";
import { type BindingTypes, BIND_NONE } from "../util/scopeflags";
const unwrapParenthesizedExpression = (node: Node) => {
return node.type === "ParenthesizedExpression"
? unwrapParenthesizedExpression(node.expression)
: node;
};
export default class LValParser extends NodeUtils {
// Forward-declaration: defined in expression.js
+parseIdentifier: (liberal?: boolean) => Identifier;
@ -49,6 +55,20 @@ export default class LValParser extends NodeUtils {
contextDescription: string,
): Node {
if (node) {
if (
(this.options.createParenthesizedExpressions &&
node.type === "ParenthesizedExpression") ||
node.extra?.parenthesized
) {
const parenthesized = unwrapParenthesizedExpression(node);
if (
parenthesized.type !== "Identifier" &&
parenthesized.type !== "MemberExpression"
) {
this.raise(node.start, "Invalid parenthesized assignment pattern");
}
}
switch (node.type) {
case "Identifier":
case "ObjectPattern":

View File

@ -0,0 +1 @@
(a = 1) = t

View File

@ -0,0 +1,5 @@
{
"plugins": [
"estree"
]
}

View File

@ -0,0 +1,138 @@
{
"type": "File",
"start": 0,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 11
}
},
"errors": [
"SyntaxError: Invalid parenthesized assignment pattern (1:1)"
],
"program": {
"type": "Program",
"start": 0,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 11
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 11
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 11
}
},
"operator": "=",
"left": {
"type": "AssignmentPattern",
"start": 1,
"end": 6,
"loc": {
"start": {
"line": 1,
"column": 1
},
"end": {
"line": 1,
"column": 6
}
},
"left": {
"type": "Identifier",
"start": 1,
"end": 2,
"loc": {
"start": {
"line": 1,
"column": 1
},
"end": {
"line": 1,
"column": 2
},
"identifierName": "a"
},
"name": "a"
},
"right": {
"type": "Literal",
"start": 5,
"end": 6,
"loc": {
"start": {
"line": 1,
"column": 5
},
"end": {
"line": 1,
"column": 6
}
},
"value": 1,
"raw": "1"
},
"extra": {
"parenthesized": true,
"parenStart": 0
}
},
"right": {
"type": "Identifier",
"start": 10,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 10
},
"end": {
"line": 1,
"column": 11
},
"identifierName": "t"
},
"name": "t"
}
}
}
]
}
}

View File

@ -0,0 +1 @@
[(a = 1)] = t

View File

@ -0,0 +1,5 @@
{
"plugins": [
"estree"
]
}

View File

@ -0,0 +1,155 @@
{
"type": "File",
"start": 0,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 13
}
},
"errors": [
"SyntaxError: Invalid parenthesized assignment pattern (1:2)"
],
"program": {
"type": "Program",
"start": 0,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 13
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 13
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 13
}
},
"operator": "=",
"left": {
"type": "ArrayPattern",
"start": 0,
"end": 9,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 9
}
},
"elements": [
{
"type": "AssignmentPattern",
"start": 2,
"end": 7,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 7
}
},
"left": {
"type": "Identifier",
"start": 2,
"end": 3,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 3
},
"identifierName": "a"
},
"name": "a"
},
"right": {
"type": "Literal",
"start": 6,
"end": 7,
"loc": {
"start": {
"line": 1,
"column": 6
},
"end": {
"line": 1,
"column": 7
}
},
"value": 1,
"raw": "1"
},
"extra": {
"parenthesized": true,
"parenStart": 1
}
}
]
},
"right": {
"type": "Identifier",
"start": 12,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 12
},
"end": {
"line": 1,
"column": 13
},
"identifierName": "t"
},
"name": "t"
}
}
}
]
}
}

View File

@ -0,0 +1 @@
[({ a: [b = 2]})] = t

View File

@ -0,0 +1,5 @@
{
"plugins": [
"estree"
]
}

View File

@ -0,0 +1,225 @@
{
"type": "File",
"start": 0,
"end": 21,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 21
}
},
"errors": [
"SyntaxError: Invalid parenthesized assignment pattern (1:2)"
],
"program": {
"type": "Program",
"start": 0,
"end": 21,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 21
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 21,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 21
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 21,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 21
}
},
"operator": "=",
"left": {
"type": "ArrayPattern",
"start": 0,
"end": 17,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 17
}
},
"elements": [
{
"type": "ObjectPattern",
"start": 2,
"end": 15,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 15
}
},
"properties": [
{
"type": "Property",
"start": 4,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 4
},
"end": {
"line": 1,
"column": 14
}
},
"method": false,
"key": {
"type": "Identifier",
"start": 4,
"end": 5,
"loc": {
"start": {
"line": 1,
"column": 4
},
"end": {
"line": 1,
"column": 5
},
"identifierName": "a"
},
"name": "a"
},
"computed": false,
"shorthand": false,
"value": {
"type": "ArrayPattern",
"start": 7,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 7
},
"end": {
"line": 1,
"column": 14
}
},
"elements": [
{
"type": "AssignmentPattern",
"start": 8,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 8
},
"end": {
"line": 1,
"column": 13
}
},
"left": {
"type": "Identifier",
"start": 8,
"end": 9,
"loc": {
"start": {
"line": 1,
"column": 8
},
"end": {
"line": 1,
"column": 9
},
"identifierName": "b"
},
"name": "b"
},
"right": {
"type": "Literal",
"start": 12,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 12
},
"end": {
"line": 1,
"column": 13
}
},
"value": 2,
"raw": "2"
}
}
]
},
"kind": "init"
}
],
"extra": {
"parenthesized": true,
"parenStart": 1
}
}
]
},
"right": {
"type": "Identifier",
"start": 20,
"end": 21,
"loc": {
"start": {
"line": 1,
"column": 20
},
"end": {
"line": 1,
"column": 21
},
"identifierName": "t"
},
"name": "t"
}
}
}
]
}
}

View File

@ -0,0 +1 @@
[{b: [([a = 1])]}] = t

View File

@ -0,0 +1,5 @@
{
"plugins": [
"estree"
]
}

View File

@ -0,0 +1,242 @@
{
"type": "File",
"start": 0,
"end": 22,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 22
}
},
"errors": [
"SyntaxError: Invalid parenthesized assignment pattern (1:7)"
],
"program": {
"type": "Program",
"start": 0,
"end": 22,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 22
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 22,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 22
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 22,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 22
}
},
"operator": "=",
"left": {
"type": "ArrayPattern",
"start": 0,
"end": 18,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 18
}
},
"elements": [
{
"type": "ObjectPattern",
"start": 1,
"end": 17,
"loc": {
"start": {
"line": 1,
"column": 1
},
"end": {
"line": 1,
"column": 17
}
},
"properties": [
{
"type": "Property",
"start": 2,
"end": 16,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 16
}
},
"method": false,
"key": {
"type": "Identifier",
"start": 2,
"end": 3,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 3
},
"identifierName": "b"
},
"name": "b"
},
"computed": false,
"shorthand": false,
"value": {
"type": "ArrayPattern",
"start": 5,
"end": 16,
"loc": {
"start": {
"line": 1,
"column": 5
},
"end": {
"line": 1,
"column": 16
}
},
"elements": [
{
"type": "ArrayPattern",
"start": 7,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 7
},
"end": {
"line": 1,
"column": 14
}
},
"elements": [
{
"type": "AssignmentPattern",
"start": 8,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 8
},
"end": {
"line": 1,
"column": 13
}
},
"left": {
"type": "Identifier",
"start": 8,
"end": 9,
"loc": {
"start": {
"line": 1,
"column": 8
},
"end": {
"line": 1,
"column": 9
},
"identifierName": "a"
},
"name": "a"
},
"right": {
"type": "Literal",
"start": 12,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 12
},
"end": {
"line": 1,
"column": 13
}
},
"value": 1,
"raw": "1"
}
}
],
"extra": {
"parenthesized": true,
"parenStart": 6
}
}
]
},
"kind": "init"
}
]
}
]
},
"right": {
"type": "Identifier",
"start": 21,
"end": 22,
"loc": {
"start": {
"line": 1,
"column": 21
},
"end": {
"line": 1,
"column": 22
},
"identifierName": "t"
},
"name": "t"
}
}
}
]
}
}

View File

@ -0,0 +1 @@
[([x])] = t;

View File

@ -0,0 +1,5 @@
{
"plugins": [
"estree"
]
}

View File

@ -0,0 +1,140 @@
{
"type": "File",
"start": 0,
"end": 12,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 12
}
},
"errors": [
"SyntaxError: Invalid parenthesized assignment pattern (1:2)"
],
"program": {
"type": "Program",
"start": 0,
"end": 12,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 12
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 12,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 12
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 11
}
},
"operator": "=",
"left": {
"type": "ArrayPattern",
"start": 0,
"end": 7,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 7
}
},
"elements": [
{
"type": "ArrayPattern",
"start": 2,
"end": 5,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 5
}
},
"elements": [
{
"type": "Identifier",
"start": 3,
"end": 4,
"loc": {
"start": {
"line": 1,
"column": 3
},
"end": {
"line": 1,
"column": 4
},
"identifierName": "x"
},
"name": "x"
}
],
"extra": {
"parenthesized": true,
"parenStart": 1
}
}
]
},
"right": {
"type": "Identifier",
"start": 10,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 10
},
"end": {
"line": 1,
"column": 11
},
"identifierName": "t"
},
"name": "t"
}
}
}
]
}
}

View File

@ -0,0 +1 @@
[(a.x)] = t;

View File

@ -0,0 +1,154 @@
{
"type": "File",
"start": 0,
"end": 12,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 12
}
},
"program": {
"type": "Program",
"start": 0,
"end": 12,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 12
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 12,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 12
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 11
}
},
"operator": "=",
"left": {
"type": "ArrayPattern",
"start": 0,
"end": 7,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 7
}
},
"elements": [
{
"type": "MemberExpression",
"start": 2,
"end": 5,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 5
}
},
"object": {
"type": "Identifier",
"start": 2,
"end": 3,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 3
},
"identifierName": "a"
},
"name": "a"
},
"property": {
"type": "Identifier",
"start": 4,
"end": 5,
"loc": {
"start": {
"line": 1,
"column": 4
},
"end": {
"line": 1,
"column": 5
},
"identifierName": "x"
},
"name": "x"
},
"computed": false,
"extra": {
"parenthesized": true,
"parenStart": 1
}
}
]
},
"right": {
"type": "Identifier",
"start": 10,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 10
},
"end": {
"line": 1,
"column": 11
},
"identifierName": "t"
},
"name": "t"
}
}
}
],
"directives": []
}
}

View File

@ -0,0 +1 @@
[(x)] = t;

View File

@ -0,0 +1,121 @@
{
"type": "File",
"start": 0,
"end": 10,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 10
}
},
"program": {
"type": "Program",
"start": 0,
"end": 10,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 10
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 10,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 10
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 9,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 9
}
},
"operator": "=",
"left": {
"type": "ArrayPattern",
"start": 0,
"end": 5,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 5
}
},
"elements": [
{
"type": "Identifier",
"start": 2,
"end": 3,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 3
},
"identifierName": "x"
},
"name": "x",
"extra": {
"parenthesized": true,
"parenStart": 1
}
}
]
},
"right": {
"type": "Identifier",
"start": 8,
"end": 9,
"loc": {
"start": {
"line": 1,
"column": 8
},
"end": {
"line": 1,
"column": 9
},
"identifierName": "t"
},
"name": "t"
}
}
}
],
"directives": []
}
}

View File

@ -0,0 +1 @@
[(((x)))] = t;

View File

@ -0,0 +1,121 @@
{
"type": "File",
"start": 0,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 14
}
},
"program": {
"type": "Program",
"start": 0,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 14
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 14
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 13
}
},
"operator": "=",
"left": {
"type": "ArrayPattern",
"start": 0,
"end": 9,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 9
}
},
"elements": [
{
"type": "Identifier",
"start": 4,
"end": 5,
"loc": {
"start": {
"line": 1,
"column": 4
},
"end": {
"line": 1,
"column": 5
},
"identifierName": "x"
},
"name": "x",
"extra": {
"parenthesized": true,
"parenStart": 1
}
}
]
},
"right": {
"type": "Identifier",
"start": 12,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 12
},
"end": {
"line": 1,
"column": 13
},
"identifierName": "t"
},
"name": "t"
}
}
}
],
"directives": []
}
}

View File

@ -0,0 +1 @@
(a = 1) = t

View File

@ -0,0 +1,3 @@
{
"createParenthesizedExpressions": true
}

View File

@ -0,0 +1,153 @@
{
"type": "File",
"start": 0,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 11
}
},
"errors": [
"SyntaxError: Invalid parenthesized assignment pattern (1:0)"
],
"program": {
"type": "Program",
"start": 0,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 11
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 11
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 11
}
},
"operator": "=",
"left": {
"type": "ParenthesizedExpression",
"start": 0,
"end": 7,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 7
}
},
"expression": {
"type": "AssignmentPattern",
"start": 1,
"end": 6,
"loc": {
"start": {
"line": 1,
"column": 1
},
"end": {
"line": 1,
"column": 6
}
},
"left": {
"type": "Identifier",
"start": 1,
"end": 2,
"loc": {
"start": {
"line": 1,
"column": 1
},
"end": {
"line": 1,
"column": 2
},
"identifierName": "a"
},
"name": "a"
},
"right": {
"type": "NumericLiteral",
"start": 5,
"end": 6,
"loc": {
"start": {
"line": 1,
"column": 5
},
"end": {
"line": 1,
"column": 6
}
},
"extra": {
"rawValue": 1,
"raw": "1"
},
"value": 1
}
}
},
"right": {
"type": "Identifier",
"start": 10,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 10
},
"end": {
"line": 1,
"column": 11
},
"identifierName": "t"
},
"name": "t"
}
}
}
],
"directives": []
}
}

View File

@ -0,0 +1 @@
[(a = 1)] = t

View File

@ -0,0 +1,3 @@
{
"createParenthesizedExpressions": true
}

View File

@ -0,0 +1,170 @@
{
"type": "File",
"start": 0,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 13
}
},
"errors": [
"SyntaxError: Invalid parenthesized assignment pattern (1:1)"
],
"program": {
"type": "Program",
"start": 0,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 13
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 13
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 13
}
},
"operator": "=",
"left": {
"type": "ArrayPattern",
"start": 0,
"end": 9,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 9
}
},
"elements": [
{
"type": "ParenthesizedExpression",
"start": 1,
"end": 8,
"loc": {
"start": {
"line": 1,
"column": 1
},
"end": {
"line": 1,
"column": 8
}
},
"expression": {
"type": "AssignmentPattern",
"start": 2,
"end": 7,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 7
}
},
"left": {
"type": "Identifier",
"start": 2,
"end": 3,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 3
},
"identifierName": "a"
},
"name": "a"
},
"right": {
"type": "NumericLiteral",
"start": 6,
"end": 7,
"loc": {
"start": {
"line": 1,
"column": 6
},
"end": {
"line": 1,
"column": 7
}
},
"extra": {
"rawValue": 1,
"raw": "1"
},
"value": 1
}
}
}
]
},
"right": {
"type": "Identifier",
"start": 12,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 12
},
"end": {
"line": 1,
"column": 13
},
"identifierName": "t"
},
"name": "t"
}
}
}
],
"directives": []
}
}

View File

@ -0,0 +1 @@
[({ a: [b = 2]})] = t

View File

@ -0,0 +1,3 @@
{
"createParenthesizedExpressions": true
}

View File

@ -0,0 +1,239 @@
{
"type": "File",
"start": 0,
"end": 21,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 21
}
},
"errors": [
"SyntaxError: Invalid parenthesized assignment pattern (1:1)"
],
"program": {
"type": "Program",
"start": 0,
"end": 21,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 21
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 21,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 21
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 21,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 21
}
},
"operator": "=",
"left": {
"type": "ArrayPattern",
"start": 0,
"end": 17,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 17
}
},
"elements": [
{
"type": "ParenthesizedExpression",
"start": 1,
"end": 16,
"loc": {
"start": {
"line": 1,
"column": 1
},
"end": {
"line": 1,
"column": 16
}
},
"expression": {
"type": "ObjectPattern",
"start": 2,
"end": 15,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 15
}
},
"properties": [
{
"type": "ObjectProperty",
"start": 4,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 4
},
"end": {
"line": 1,
"column": 14
}
},
"method": false,
"key": {
"type": "Identifier",
"start": 4,
"end": 5,
"loc": {
"start": {
"line": 1,
"column": 4
},
"end": {
"line": 1,
"column": 5
},
"identifierName": "a"
},
"name": "a"
},
"computed": false,
"shorthand": false,
"value": {
"type": "ArrayPattern",
"start": 7,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 7
},
"end": {
"line": 1,
"column": 14
}
},
"elements": [
{
"type": "AssignmentPattern",
"start": 8,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 8
},
"end": {
"line": 1,
"column": 13
}
},
"left": {
"type": "Identifier",
"start": 8,
"end": 9,
"loc": {
"start": {
"line": 1,
"column": 8
},
"end": {
"line": 1,
"column": 9
},
"identifierName": "b"
},
"name": "b"
},
"right": {
"type": "NumericLiteral",
"start": 12,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 12
},
"end": {
"line": 1,
"column": 13
}
},
"extra": {
"rawValue": 2,
"raw": "2"
},
"value": 2
}
}
]
}
}
]
}
}
]
},
"right": {
"type": "Identifier",
"start": 20,
"end": 21,
"loc": {
"start": {
"line": 1,
"column": 20
},
"end": {
"line": 1,
"column": 21
},
"identifierName": "t"
},
"name": "t"
}
}
}
],
"directives": []
}
}

View File

@ -0,0 +1 @@
[{b: [([a = 1])]}] = t

View File

@ -0,0 +1,3 @@
{
"createParenthesizedExpressions": true
}

View File

@ -0,0 +1,256 @@
{
"type": "File",
"start": 0,
"end": 22,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 22
}
},
"errors": [
"SyntaxError: Invalid parenthesized assignment pattern (1:6)"
],
"program": {
"type": "Program",
"start": 0,
"end": 22,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 22
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 22,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 22
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 22,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 22
}
},
"operator": "=",
"left": {
"type": "ArrayPattern",
"start": 0,
"end": 18,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 18
}
},
"elements": [
{
"type": "ObjectPattern",
"start": 1,
"end": 17,
"loc": {
"start": {
"line": 1,
"column": 1
},
"end": {
"line": 1,
"column": 17
}
},
"properties": [
{
"type": "ObjectProperty",
"start": 2,
"end": 16,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 16
}
},
"method": false,
"key": {
"type": "Identifier",
"start": 2,
"end": 3,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 3
},
"identifierName": "b"
},
"name": "b"
},
"computed": false,
"shorthand": false,
"value": {
"type": "ArrayPattern",
"start": 5,
"end": 16,
"loc": {
"start": {
"line": 1,
"column": 5
},
"end": {
"line": 1,
"column": 16
}
},
"elements": [
{
"type": "ParenthesizedExpression",
"start": 6,
"end": 15,
"loc": {
"start": {
"line": 1,
"column": 6
},
"end": {
"line": 1,
"column": 15
}
},
"expression": {
"type": "ArrayPattern",
"start": 7,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 7
},
"end": {
"line": 1,
"column": 14
}
},
"elements": [
{
"type": "AssignmentPattern",
"start": 8,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 8
},
"end": {
"line": 1,
"column": 13
}
},
"left": {
"type": "Identifier",
"start": 8,
"end": 9,
"loc": {
"start": {
"line": 1,
"column": 8
},
"end": {
"line": 1,
"column": 9
},
"identifierName": "a"
},
"name": "a"
},
"right": {
"type": "NumericLiteral",
"start": 12,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 12
},
"end": {
"line": 1,
"column": 13
}
},
"extra": {
"rawValue": 1,
"raw": "1"
},
"value": 1
}
}
]
}
}
]
}
}
]
}
]
},
"right": {
"type": "Identifier",
"start": 21,
"end": 22,
"loc": {
"start": {
"line": 1,
"column": 21
},
"end": {
"line": 1,
"column": 22
},
"identifierName": "t"
},
"name": "t"
}
}
}
],
"directives": []
}
}

View File

@ -0,0 +1 @@
[([x])] = t;

View File

@ -0,0 +1,3 @@
{
"createParenthesizedExpressions": true
}

View File

@ -0,0 +1,152 @@
{
"type": "File",
"start": 0,
"end": 12,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 12
}
},
"errors": [
"SyntaxError: Invalid parenthesized assignment pattern (1:1)"
],
"program": {
"type": "Program",
"start": 0,
"end": 12,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 12
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 12,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 12
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 11
}
},
"operator": "=",
"left": {
"type": "ArrayPattern",
"start": 0,
"end": 7,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 7
}
},
"elements": [
{
"type": "ParenthesizedExpression",
"start": 1,
"end": 6,
"loc": {
"start": {
"line": 1,
"column": 1
},
"end": {
"line": 1,
"column": 6
}
},
"expression": {
"type": "ArrayPattern",
"start": 2,
"end": 5,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 5
}
},
"elements": [
{
"type": "Identifier",
"start": 3,
"end": 4,
"loc": {
"start": {
"line": 1,
"column": 3
},
"end": {
"line": 1,
"column": 4
},
"identifierName": "x"
},
"name": "x"
}
]
}
}
]
},
"right": {
"type": "Identifier",
"start": 10,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 10
},
"end": {
"line": 1,
"column": 11
},
"identifierName": "t"
},
"name": "t"
}
}
}
],
"directives": []
}
}

View File

@ -0,0 +1 @@
[(a.x)] = t;

View File

@ -0,0 +1,3 @@
{
"createParenthesizedExpressions": true
}

View File

@ -0,0 +1,165 @@
{
"type": "File",
"start": 0,
"end": 12,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 12
}
},
"program": {
"type": "Program",
"start": 0,
"end": 12,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 12
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 12,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 12
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 11
}
},
"operator": "=",
"left": {
"type": "ArrayPattern",
"start": 0,
"end": 7,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 7
}
},
"elements": [
{
"type": "ParenthesizedExpression",
"start": 1,
"end": 6,
"loc": {
"start": {
"line": 1,
"column": 1
},
"end": {
"line": 1,
"column": 6
}
},
"expression": {
"type": "MemberExpression",
"start": 2,
"end": 5,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 5
}
},
"object": {
"type": "Identifier",
"start": 2,
"end": 3,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 3
},
"identifierName": "a"
},
"name": "a"
},
"property": {
"type": "Identifier",
"start": 4,
"end": 5,
"loc": {
"start": {
"line": 1,
"column": 4
},
"end": {
"line": 1,
"column": 5
},
"identifierName": "x"
},
"name": "x"
},
"computed": false
}
}
]
},
"right": {
"type": "Identifier",
"start": 10,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 10
},
"end": {
"line": 1,
"column": 11
},
"identifierName": "t"
},
"name": "t"
}
}
}
],
"directives": []
}
}

View File

@ -0,0 +1 @@
[(x)] = t;

View File

@ -0,0 +1,3 @@
{
"createParenthesizedExpressions": true
}

View File

@ -0,0 +1,132 @@
{
"type": "File",
"start": 0,
"end": 10,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 10
}
},
"program": {
"type": "Program",
"start": 0,
"end": 10,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 10
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 10,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 10
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 9,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 9
}
},
"operator": "=",
"left": {
"type": "ArrayPattern",
"start": 0,
"end": 5,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 5
}
},
"elements": [
{
"type": "ParenthesizedExpression",
"start": 1,
"end": 4,
"loc": {
"start": {
"line": 1,
"column": 1
},
"end": {
"line": 1,
"column": 4
}
},
"expression": {
"type": "Identifier",
"start": 2,
"end": 3,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 3
},
"identifierName": "x"
},
"name": "x"
}
}
]
},
"right": {
"type": "Identifier",
"start": 8,
"end": 9,
"loc": {
"start": {
"line": 1,
"column": 8
},
"end": {
"line": 1,
"column": 9
},
"identifierName": "t"
},
"name": "t"
}
}
}
],
"directives": []
}
}

View File

@ -0,0 +1 @@
[(((x)))] = t;

View File

@ -0,0 +1,3 @@
{
"createParenthesizedExpressions": true
}

View File

@ -0,0 +1,162 @@
{
"type": "File",
"start": 0,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 14
}
},
"program": {
"type": "Program",
"start": 0,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 14
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 14
}
},
"expression": {
"type": "AssignmentExpression",
"start": 0,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 13
}
},
"operator": "=",
"left": {
"type": "ArrayPattern",
"start": 0,
"end": 9,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 9
}
},
"elements": [
{
"type": "ParenthesizedExpression",
"start": 1,
"end": 8,
"loc": {
"start": {
"line": 1,
"column": 1
},
"end": {
"line": 1,
"column": 8
}
},
"expression": {
"type": "ParenthesizedExpression",
"start": 2,
"end": 7,
"loc": {
"start": {
"line": 1,
"column": 2
},
"end": {
"line": 1,
"column": 7
}
},
"expression": {
"type": "ParenthesizedExpression",
"start": 3,
"end": 6,
"loc": {
"start": {
"line": 1,
"column": 3
},
"end": {
"line": 1,
"column": 6
}
},
"expression": {
"type": "Identifier",
"start": 4,
"end": 5,
"loc": {
"start": {
"line": 1,
"column": 4
},
"end": {
"line": 1,
"column": 5
},
"identifierName": "x"
},
"name": "x"
}
}
}
}
]
},
"right": {
"type": "Identifier",
"start": 12,
"end": 13,
"loc": {
"start": {
"line": 1,
"column": 12
},
"end": {
"line": 1,
"column": 13
},
"identifierName": "t"
},
"name": "t"
}
}
}
],
"directives": []
}
}

View File

@ -1 +1 @@
( { get x() {} } = 0 )
({ get x() {} } = 0)