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Allow rest parameter type to be a readonly array or tuple

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Anders Hejlsberg
2019-01-17 06:06:07 -08:00
parent d24a63d93d
commit e5816491ba
1 changed files with 1 additions and 1 deletions
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src/compiler/checker.ts
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@@ -23180,7 +23180,7 @@ namespace ts {
// Only check rest parameter type if it's not a binding pattern. Since binding patterns are
// not allowed in a rest parameter, we already have an error from checkGrammarParameterList.
if (node.dotDotDotToken && !isBindingPattern(node.name) && !isTypeAssignableTo(getTypeOfSymbol(node.symbol), anyArrayType)) {
if (node.dotDotDotToken && !isBindingPattern(node.name) && !isTypeAssignableTo(getTypeOfSymbol(node.symbol), anyReadonlyArrayType)) {
error(node, Diagnostics.A_rest_parameter_must_be_of_an_array_type);
}
}