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Fix Command#report_warnings to gracefully handle missing Compiler#program #9866

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3 changes: 2 additions & 1 deletion src/compiler/crystal/semantic/warnings.cr
Original file line number Diff line number Diff line change
Expand Up @@ -169,7 +169,8 @@ module Crystal
compiler = @compiler
return unless compiler

program = compiler.program
program = compiler.program?
return unless program
return if program.warning_failures.empty?

program.warning_failures.each do |message|
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