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fix: improve autofix of prefer-object-has-own #15419

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merged 7 commits into from Dec 14, 2021
Merged

fix: improve autofix of prefer-object-has-own #15419

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082a4eb
fix: improve autofix of `prefer-object-has-own`
snitin315 Dec 11, 2021
c7367b5
fix: cover more cases
snitin315 Dec 11, 2021
95f0084
test: add more cases
snitin315 Dec 11, 2021
7e0c12d
test: add more test cases
snitin315 Dec 11, 2021
95e7cd3
fix: avoid unnecessary space in autofix output
snitin315 Dec 13, 2021
46ab859
refactor: code
snitin315 Dec 13, 2021
804a8f9
refactor: apply suggestion
snitin315 Dec 14, 2021
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7 changes: 7 additions & 0 deletions lib/rules/prefer-object-has-own.js
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Expand Up @@ -87,6 +87,13 @@ module.exports = {
return null;
}

const tokenJustBeforeNode = sourceCode.getTokensBefore(node, 1)[0];
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// for https://github.com/eslint/eslint/pull/15346#issuecomment-991417335
if (tokenJustBeforeNode && tokenJustBeforeNode.type === "Keyword" && !sourceCode.isSpaceBetween(node, tokenJustBeforeNode)) {
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return fixer.replaceText(node.callee, " Object.hasOwn");
}

return fixer.replaceText(node.callee, "Object.hasOwn");
}
});
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24 changes: 24 additions & 0 deletions tests/lib/rules/prefer-object-has-own.js
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Expand Up @@ -224,6 +224,17 @@ ruleTester.run("prefer-object-has-own", rule, {
endColumn: 61
}]
},
{
code: "const hasProperty={}.hasOwnProperty.call(object, property);",
output: "const hasProperty=Object.hasOwn(object, property);",
errors: [{
messageId: "useHasOwn",
line: 1,
column: 19,
endLine: 1,
endColumn: 59
}]
},
{
code: "const hasProperty = (( {}.hasOwnProperty.call(object, property) ));",
output: "const hasProperty = (( Object.hasOwn(object, property) ));",
Expand Down Expand Up @@ -279,6 +290,19 @@ ruleTester.run("prefer-object-has-own", rule, {
endColumn: 63
}]
},

// https://github.com/eslint/eslint/pull/15346#issuecomment-991417335
{
code: "function foo(){return{}.hasOwnProperty.call(object, property)}",
output: "function foo(){return Object.hasOwn(object, property)}",
errors: [{
messageId: "useHasOwn",
line: 1,
column: 22,
endLine: 1,
endColumn: 62
}]
},
{
code: "Object['prototype']['hasOwnProperty']['call'](object, property);",
output: "Object.hasOwn(object, property);",
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