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Adjust Error stack columns numbers by 1 #21865

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merged 1 commit into from
Jul 13, 2021
Merged

Adjust Error stack columns numbers by 1 #21865

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11 changes: 11 additions & 0 deletions packages/react-devtools-extensions/src/astUtils.js
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,17 @@ function checkNodeLocation(
return false;
}

// Column numbers are representated differently between tools/engines.
// Error.prototype.stack columns are 1-based (like most IDEs) but ASTs are 0-based.
//
// In practice this will probably never matter,
// because this code matches the 1-based Error stack location for the hook Identifier (e.g. useState)
// with the larger 0-based VariableDeclarator (e.g. [foo, setFoo] = useState())
// so the ranges should always overlap.
//
// For more info see https://github.com/facebook/react/pull/21833#discussion_r666831276
column -= 1;

if (
(line === start.line && column < start.column) ||
(line === end.line && column > end.column)
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2 changes: 2 additions & 0 deletions packages/react-devtools-extensions/src/parseHookNames.js
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Original file line number Diff line number Diff line change
Expand Up @@ -378,6 +378,7 @@ function findHookNames(
line: lineNumber,

// Column numbers are representated differently between tools/engines.
// Error.prototype.stack columns are 1-based (like most IDEs) but ASTs are 0-based.
// For more info see https://github.com/facebook/react/issues/21792#issuecomment-873171991
column: columnNumber - 1,
});
Expand Down Expand Up @@ -476,6 +477,7 @@ async function parseSourceAST(
line: lineNumber,

// Column numbers are representated differently between tools/engines.
// Error.prototype.stack columns are 1-based (like most IDEs) but ASTs are 0-based.
// For more info see https://github.com/facebook/react/issues/21792#issuecomment-873171991
column: columnNumber - 1,
});
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