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Modify debug assertion to avoid crashing on SyntaxList #47500
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Original file line number | Diff line number | Diff line change |
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@@ -1297,7 +1297,7 @@ namespace ts { | |
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if (lookInPreviousChild) { | ||
// actual start of the node is past the position - previous token should be at the end of previous child | ||
const candidate = findRightmostChildNodeWithTokens(children, /*exclusiveStartPosition*/ i, sourceFile); | ||
const candidate = findRightmostChildNodeWithTokens(children, /*exclusiveStartPosition*/ i, sourceFile, n.kind); | ||
return candidate && findRightmostToken(candidate, sourceFile); | ||
} | ||
else { | ||
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@@ -1313,7 +1313,7 @@ namespace ts { | |
// the only known case is when position is at the end of the file. | ||
// Try to find the rightmost token in the file without filtering. | ||
// Namely we are skipping the check: 'position < node.end' | ||
const candidate = findRightmostChildNodeWithTokens(children, /*exclusiveStartPosition*/ children.length, sourceFile); | ||
const candidate = findRightmostChildNodeWithTokens(children, /*exclusiveStartPosition*/ children.length, sourceFile, n.kind); | ||
return candidate && findRightmostToken(candidate, sourceFile); | ||
} | ||
} | ||
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@@ -1332,19 +1332,21 @@ namespace ts { | |
return n; | ||
} | ||
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const candidate = findRightmostChildNodeWithTokens(children, /*exclusiveStartPosition*/ children.length, sourceFile); | ||
const candidate = findRightmostChildNodeWithTokens(children, /*exclusiveStartPosition*/ children.length, sourceFile, n.kind); | ||
return candidate && findRightmostToken(candidate, sourceFile); | ||
} | ||
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/** | ||
* Finds the rightmost child to the left of `children[exclusiveStartPosition]` which is a non-all-whitespace token or has constituent tokens. | ||
*/ | ||
function findRightmostChildNodeWithTokens(children: Node[], exclusiveStartPosition: number, sourceFile: SourceFile): Node | undefined { | ||
function findRightmostChildNodeWithTokens(children: Node[], exclusiveStartPosition: number, sourceFile: SourceFile, parentKind: SyntaxKind): Node | undefined { | ||
for (let i = exclusiveStartPosition - 1; i >= 0; i--) { | ||
const child = children[i]; | ||
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if (isWhiteSpaceOnlyJsxText(child)) { | ||
Debug.assert(i > 0, "`JsxText` tokens should not be the first child of `JsxElement | JsxSelfClosingElement`"); | ||
if (parentKind === SyntaxKind.JsxText || parentKind === SyntaxKind.JsxSelfClosingElement) { | ||
Debug.assert(i > 0, "`JsxText` tokens should not be the first child of `JsxElement | JsxSelfClosingElement`"); | ||
} | ||
} | ||
else if (nodeHasTokens(children[i], sourceFile)) { | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Out of scope, but should There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Yeah, this seems like an oops. I can fix this, if desired. Shouldn't change anything. There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Maybe as a follow-up. |
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return children[i]; | ||
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,8 @@ | ||
/// <reference path="fourslash.ts" /> | ||
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// @Filename: foo.tsx | ||
////let x = <div> | ||
//// /*$*/</div > | ||
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goTo.marker("$"); | ||
verify.not.quickInfoExists(); |
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I might just fold the
i > 0
into the above condition and turn this into aDebug.fail
, but this is fine.There was a problem hiding this comment.
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Yeah, that's a reasonable change.