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simple error propagation fix: don't complain about "unused" values that themselves are due to errors

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This commit is contained in:
Vern Paxson 2021-01-04 13:39:22 -08:00
parent c8be7ec795
commit 9cb506ad97
1 changed files with 1 additions and 1 deletions
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2
src/Stmt.cc
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@ -311,7 +311,7 @@ ValPtr PrintStmt::DoExec(std::vector<ValPtr> vals,
ExprStmt::ExprStmt(ExprPtr arg_e) : Stmt(STMT_EXPR), e(std::move(arg_e))
{
if ( e && e->IsPure() )
if ( e && e->IsPure() && e->GetType()->Tag() != TYPE_ERROR )
Warn("expression value ignored");
SetLocationInfo(e->GetLocationInfo());