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fix: raise SyntaxError for unparenthesized assert and assign (#13099)

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* fix: raise `SyntaxError` for unparenthesized assert and assign

* chore
This commit is contained in:
Federico Ciardi 2021-04-06 16:07:13 +02:00 committed by GitHub
parent 7bc72bb451
commit 7fe3ebf4db
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GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 254 additions and 17 deletions
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14
packages/babel-parser/src/plugins/typescript/index.js
View File

@ -2589,7 +2589,7 @@ export default (superClass: Class<Parser>): Class<Parser> =>
if (
expr.type !== "ArrowFunctionExpression" ||
(expr.extra && expr.extra.parenthesized)
expr.extra?.parenthesized
) {
abort();
}
@ -2743,8 +2743,18 @@ export default (superClass: Class<Parser>): Class<Parser> =>
this.checkLVal(expr.parameter, "parameter property", ...args);
return;
case "TSAsExpression":
case "TSNonNullExpression":
case "TSTypeAssertion":
if (
/*bindingType*/ !args[0] &&
contextDescription !== "parenthesized expression" &&
!expr.extra?.parenthesized
) {
this.raise(expr.start, Errors.InvalidLhs, contextDescription);
break;
}
this.checkLVal(expr.expression, "parenthesized expression", ...args);
return;
case "TSNonNullExpression":
this.checkLVal(expr.expression, contextDescription, ...args);
return;
default:

3
packages/babel-parser/test/fixtures/typescript/cast/assert-and-assign/input.ts vendored
View File

@ -1 +1,2 @@
(a as number) = 42;
(a as number) = 42;
({ a: (b as any) = 2000 } = x);

78
packages/babel-parser/test/fixtures/typescript/cast/assert-and-assign/output.json vendored
View File

@ -1,9 +1,9 @@
{
"type": "File",
"start":0,"end":19,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":19}},
"start":0,"end":51,"loc":{"start":{"line":1,"column":0},"end":{"line":2,"column":31}},
"program": {
"type": "Program",
"start":0,"end":19,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":19}},
"start":0,"end":51,"loc":{"start":{"line":1,"column":0},"end":{"line":2,"column":31}},
"sourceType": "module",
"interpreter": null,
"body": [
@ -17,6 +17,10 @@
"left": {
"type": "TSAsExpression",
"start":1,"end":12,"loc":{"start":{"line":1,"column":1},"end":{"line":1,"column":12}},
"extra": {
"parenthesized": true,
"parenStart": 0
},
"expression": {
"type": "Identifier",
"start":1,"end":2,"loc":{"start":{"line":1,"column":1},"end":{"line":1,"column":2},"identifierName":"a"},
@ -25,10 +29,6 @@
"typeAnnotation": {
"type": "TSNumberKeyword",
"start":6,"end":12,"loc":{"start":{"line":1,"column":6},"end":{"line":1,"column":12}}
},
"extra": {
"parenthesized": true,
"parenStart": 0
}
},
"right": {
@ -41,6 +41,72 @@
"value": 42
}
}
},
{
"type": "ExpressionStatement",
"start":20,"end":51,"loc":{"start":{"line":2,"column":0},"end":{"line":2,"column":31}},
"expression": {
"type": "AssignmentExpression",
"start":21,"end":49,"loc":{"start":{"line":2,"column":1},"end":{"line":2,"column":29}},
"extra": {
"parenthesized": true,
"parenStart": 20
},
"operator": "=",
"left": {
"type": "ObjectPattern",
"start":21,"end":45,"loc":{"start":{"line":2,"column":1},"end":{"line":2,"column":25}},
"properties": [
{
"type": "ObjectProperty",
"start":23,"end":43,"loc":{"start":{"line":2,"column":3},"end":{"line":2,"column":23}},
"method": false,
"key": {
"type": "Identifier",
"start":23,"end":24,"loc":{"start":{"line":2,"column":3},"end":{"line":2,"column":4},"identifierName":"a"},
"name": "a"
},
"computed": false,
"shorthand": false,
"value": {
"type": "AssignmentPattern",
"start":26,"end":43,"loc":{"start":{"line":2,"column":6},"end":{"line":2,"column":23}},
"left": {
"type": "TSAsExpression",
"start":27,"end":35,"loc":{"start":{"line":2,"column":7},"end":{"line":2,"column":15}},
"extra": {
"parenthesized": true,
"parenStart": 26
},
"expression": {
"type": "Identifier",
"start":27,"end":28,"loc":{"start":{"line":2,"column":7},"end":{"line":2,"column":8},"identifierName":"b"},
"name": "b"
},
"typeAnnotation": {
"type": "TSAnyKeyword",
"start":32,"end":35,"loc":{"start":{"line":2,"column":12},"end":{"line":2,"column":15}}
}
},
"right": {
"type": "NumericLiteral",
"start":39,"end":43,"loc":{"start":{"line":2,"column":19},"end":{"line":2,"column":23}},
"extra": {
"rawValue": 2000,
"raw": "2000"
},
"value": 2000
}
}
}
]
},
"right": {
"type": "Identifier",
"start":48,"end":49,"loc":{"start":{"line":2,"column":28},"end":{"line":2,"column":29},"identifierName":"x"},
"name": "x"
}
}
}
],
"directives": []

8
packages/babel-parser/test/fixtures/typescript/cast/multiple-assert-and-assign/output.json vendored
View File

@ -17,6 +17,10 @@
"left": {
"type": "TSAsExpression",
"start":1,"end":19,"loc":{"start":{"line":1,"column":1},"end":{"line":1,"column":19}},
"extra": {
"parenthesized": true,
"parenStart": 0
},
"expression": {
"type": "TSAsExpression",
"start":1,"end":12,"loc":{"start":{"line":1,"column":1},"end":{"line":1,"column":12}},
@ -33,10 +37,6 @@
"typeAnnotation": {
"type": "TSAnyKeyword",
"start":16,"end":19,"loc":{"start":{"line":1,"column":16},"end":{"line":1,"column":19}}
},
"extra": {
"parenthesized": true,
"parenStart": 0
}
},
"right": {

8
packages/babel-parser/test/fixtures/typescript/cast/type-assertion-and-assign/output.json vendored
View File

@ -17,6 +17,10 @@
"left": {
"type": "TSTypeAssertion",
"start":1,"end":11,"loc":{"start":{"line":1,"column":1},"end":{"line":1,"column":11}},
"extra": {
"parenthesized": true,
"parenStart": 0
},
"typeAnnotation": {
"type": "TSNumberKeyword",
"start":2,"end":8,"loc":{"start":{"line":1,"column":2},"end":{"line":1,"column":8}}
@ -25,10 +29,6 @@
"type": "Identifier",
"start":10,"end":11,"loc":{"start":{"line":1,"column":10},"end":{"line":1,"column":11},"identifierName":"x"},
"name": "x"
},
"extra": {
"parenthesized": true,
"parenStart": 0
}
},
"right": {

2
packages/babel-parser/test/fixtures/typescript/cast/unparenthesized-assert-and-assign/input.ts vendored Normal file
View File

@ -0,0 +1,2 @@
foo as any = 10;
({ a: b as any = 2000 } = x);

110
packages/babel-parser/test/fixtures/typescript/cast/unparenthesized-assert-and-assign/output.json vendored Normal file
View File

@ -0,0 +1,110 @@
{
"type": "File",
"start":0,"end":46,"loc":{"start":{"line":1,"column":0},"end":{"line":2,"column":29}},
"errors": [
"SyntaxError: Invalid left-hand side in assignment expression (1:0)",
"SyntaxError: Invalid left-hand side in assignment expression (2:6)"
],
"program": {
"type": "Program",
"start":0,"end":46,"loc":{"start":{"line":1,"column":0},"end":{"line":2,"column":29}},
"sourceType": "module",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start":0,"end":16,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":16}},
"expression": {
"type": "AssignmentExpression",
"start":0,"end":15,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":15}},
"operator": "=",
"left": {
"type": "TSAsExpression",
"start":0,"end":10,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":10}},
"expression": {
"type": "Identifier",
"start":0,"end":3,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":3},"identifierName":"foo"},
"name": "foo"
},
"typeAnnotation": {
"type": "TSAnyKeyword",
"start":7,"end":10,"loc":{"start":{"line":1,"column":7},"end":{"line":1,"column":10}}
}
},
"right": {
"type": "NumericLiteral",
"start":13,"end":15,"loc":{"start":{"line":1,"column":13},"end":{"line":1,"column":15}},
"extra": {
"rawValue": 10,
"raw": "10"
},
"value": 10
}
}
},
{
"type": "ExpressionStatement",
"start":17,"end":46,"loc":{"start":{"line":2,"column":0},"end":{"line":2,"column":29}},
"expression": {
"type": "AssignmentExpression",
"start":18,"end":44,"loc":{"start":{"line":2,"column":1},"end":{"line":2,"column":27}},
"extra": {
"parenthesized": true,
"parenStart": 17
},
"operator": "=",
"left": {
"type": "ObjectPattern",
"start":18,"end":40,"loc":{"start":{"line":2,"column":1},"end":{"line":2,"column":23}},
"properties": [
{
"type": "ObjectProperty",
"start":20,"end":38,"loc":{"start":{"line":2,"column":3},"end":{"line":2,"column":21}},
"method": false,
"key": {
"type": "Identifier",
"start":20,"end":21,"loc":{"start":{"line":2,"column":3},"end":{"line":2,"column":4},"identifierName":"a"},
"name": "a"
},
"computed": false,
"shorthand": false,
"value": {
"type": "AssignmentPattern",
"start":23,"end":38,"loc":{"start":{"line":2,"column":6},"end":{"line":2,"column":21}},
"left": {
"type": "TSAsExpression",
"start":23,"end":31,"loc":{"start":{"line":2,"column":6},"end":{"line":2,"column":14}},
"expression": {
"type": "Identifier",
"start":23,"end":24,"loc":{"start":{"line":2,"column":6},"end":{"line":2,"column":7},"identifierName":"b"},
"name": "b"
},
"typeAnnotation": {
"type": "TSAnyKeyword",
"start":28,"end":31,"loc":{"start":{"line":2,"column":11},"end":{"line":2,"column":14}}
}
},
"right": {
"type": "NumericLiteral",
"start":34,"end":38,"loc":{"start":{"line":2,"column":17},"end":{"line":2,"column":21}},
"extra": {
"rawValue": 2000,
"raw": "2000"
},
"value": 2000
}
}
}
]
},
"right": {
"type": "Identifier",
"start":43,"end":44,"loc":{"start":{"line":2,"column":26},"end":{"line":2,"column":27},"identifierName":"x"},
"name": "x"
}
}
}
],
"directives": []
}
}

1
packages/babel-parser/test/fixtures/typescript/cast/unparenthesized-type-assertion-and-assign/input.ts vendored Normal file
View File

@ -0,0 +1 @@
<string>foo = '100';

47
packages/babel-parser/test/fixtures/typescript/cast/unparenthesized-type-assertion-and-assign/output.json vendored Normal file
View File

@ -0,0 +1,47 @@
{
"type": "File",
"start":0,"end":20,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":20}},
"errors": [
"SyntaxError: Invalid left-hand side in assignment expression (1:0)"
],
"program": {
"type": "Program",
"start":0,"end":20,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":20}},
"sourceType": "module",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start":0,"end":20,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":20}},
"expression": {
"type": "AssignmentExpression",
"start":0,"end":19,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":19}},
"operator": "=",
"left": {
"type": "TSTypeAssertion",
"start":0,"end":11,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":11}},
"typeAnnotation": {
"type": "TSStringKeyword",
"start":1,"end":7,"loc":{"start":{"line":1,"column":1},"end":{"line":1,"column":7}}
},
"expression": {
"type": "Identifier",
"start":8,"end":11,"loc":{"start":{"line":1,"column":8},"end":{"line":1,"column":11},"identifierName":"foo"},
"name": "foo"
}
},
"right": {
"type": "StringLiteral",
"start":14,"end":19,"loc":{"start":{"line":1,"column":14},"end":{"line":1,"column":19}},
"extra": {
"rawValue": "100",
"raw": "'100'"
},
"value": "100"
}
}
}
],
"directives": []
}
}