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Sema: Accept if #_hasSymbol() conditions in closure contexts.

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Resolves rdar://100129165
This commit is contained in:
Allan Shortlidge
2022-09-27 11:20:26 -07:00
parent af276b77f5
commit 034e53ad20
7 changed files with 135 additions and 43 deletions
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16
lib/Sema/CSApply.cpp
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@@ -8923,9 +8923,23 @@ ExprWalker::rewriteTarget(SolutionApplicationTarget target) {
for (auto &condElement : *stmtCondition) {
switch (condElement.getKind()) {
case StmtConditionElement::CK_Availability:
case StmtConditionElement::CK_HasSymbol:
continue;
case StmtConditionElement::CK_HasSymbol: {
ConstraintSystem &cs = solution.getConstraintSystem();
auto target = *cs.getSolutionApplicationTarget(&condElement);
auto resolvedTarget = rewriteTarget(target);
if (!resolvedTarget)
return None;
auto info = condElement.getHasSymbolInfo();
auto rewrittenExpr = resolvedTarget->getAsExpr();
info->setSymbolExpr(rewrittenExpr);
info->setReferencedDecl(
TypeChecker::getReferencedDeclForHasSymbolCondition(rewrittenExpr));
continue;
}
case StmtConditionElement::CK_Boolean: {
auto condExpr = condElement.getBoolean();
auto finalCondExpr = condExpr->walk(*this);