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[parser] Report escapes in kws only if they won't be used as i… (#10455)

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We can do it by tokenizing escaped keywords as normal identifiers, so that they won't
be accidentally used as real keywords.
This commit is contained in:
Nicolò Ribaudo
2019-09-18 00:13:51 +02:00
committed by GitHub
parent 45a484f0a2
commit cb881e6b3f
9 changed files with 172 additions and 447 deletions
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0
packages/babel-parser/test/fixtures/core/valid-escape/async/input.js → packages/babel-parser/test/fixtures/core/escape-keyword/async/input.js vendored
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0
packages/babel-parser/test/fixtures/core/valid-escape/async/output.json → packages/babel-parser/test/fixtures/core/escape-keyword/async/output.json vendored
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3
packages/babel-parser/test/fixtures/core/escape-keyword/invalid/input.js vendored Normal file
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@@ -0,0 +1,3 @@
var a = {
br\u{65}ak
};

3
packages/babel-parser/test/fixtures/core/escape-keyword/invalid/options.json vendored Normal file
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@@ -0,0 +1,3 @@
{
"throws": "Unexpected keyword 'break' (2:2)"
}

3
packages/babel-parser/test/fixtures/core/escape-keyword/used-as-property/input.js vendored Normal file
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@@ -0,0 +1,3 @@
var a = {
br\u{65}ak: 2
};

157
packages/babel-parser/test/fixtures/core/escape-keyword/used-as-property/output.json vendored Normal file
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@@ -0,0 +1,157 @@
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"line": 1,
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},
"end": {
"line": 3,
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}
},
"id": {
"type": "Identifier",
"start": 4,
"end": 5,
"loc": {
"start": {
"line": 1,
"column": 4
},
"end": {
"line": 1,
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},
"identifierName": "a"
},
"name": "a"
},
"init": {
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},
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"method": false,
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"type": "Identifier",
"start": 12,
"end": 22,
"loc": {
"start": {
"line": 2,
"column": 2
},
"end": {
"line": 2,
"column": 12
},
"identifierName": "break"
},
"name": "break"
},
"computed": false,
"shorthand": false,
"value": {
"type": "NumericLiteral",
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"end": 25,
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"value": 2
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"kind": "var"
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"directives": []
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}