From 7349dc5cff49cf22c82eb912813e47f30cd7a757 Mon Sep 17 00:00:00 2001 From: Julius Ikkala Date: Sat, 28 Jun 2025 05:39:24 +0300 Subject: Minimal optional constraints (#7422) * Parse optional witness syntax * Allow failing optional constraint * Make `is` work with optional constraint * Allow using optional constraint in checked if statements * Fix tests * Make it work with structs * Fix MSVC build error * Disallow using `as` with optional constraints * Update test to match split is/as errors * Add tests * Fix uninitialized variables in tests * Add tests of incorrect uses & fix related bugs * Mention optional constraints in docs * format code * Fix type unification with NoneWitness * Fix formatting --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> Co-authored-by: Nathan V. Morrical --- source/slang/slang-check-stmt.cpp | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'source/slang/slang-check-stmt.cpp') diff --git a/source/slang/slang-check-stmt.cpp b/source/slang/slang-check-stmt.cpp index faf25b716..bf8ddc94e 100644 --- a/source/slang/slang-check-stmt.cpp +++ b/source/slang/slang-check-stmt.cpp @@ -522,9 +522,10 @@ void SemanticsStmtVisitor::visitDefaultStmt(DefaultStmt* stmt) void SemanticsStmtVisitor::visitIfStmt(IfStmt* stmt) { + WithOuterStmt subContext(this, stmt); stmt->predicate = checkPredicateExpr(stmt->predicate); - checkStmt(stmt->positiveStatement); - checkStmt(stmt->negativeStatement); + subContext.checkStmt(stmt->positiveStatement); + subContext.checkStmt(stmt->negativeStatement); } void SemanticsStmtVisitor::visitUnparsedStmt(UnparsedStmt*) -- cgit v1.2.3