nitc/abscomp: add helper function maybenull to factorize code

[nit.git] / src / compiler / abstract_compiler.nit

diff --git a/src/compiler/abstract_compiler.nit b/src/compiler/abstract_compiler.nit
index 1fad40d..47a0017 100644 (file)
--- a/src/compiler/abstract_compiler.nit
+++ b/src/compiler/abstract_compiler.nit
@@ -1351,13 +1351,18 @@ abstract class AbstractCompilerVisitor
 
        # Checks
 
+       # Can value be null? (according to current knowledge)
+       fun maybenull(value: RuntimeVariable): Bool
+       do
+               return value.mcasttype isa MNullableType or value.mcasttype isa MNullType
+       end
+
        # Add a check and an abort for a null receiver if needed
        fun check_recv_notnull(recv: RuntimeVariable)
        do
                if self.compiler.modelbuilder.toolcontext.opt_no_check_null.value then return
 
-               var maybenull = recv.mcasttype isa MNullableType or recv.mcasttype isa MNullType
-               if maybenull then
+               if maybenull(recv) then
                        self.add("if (unlikely({recv} == NULL)) \{")
                        self.add_abort("Receiver is null")
                        self.add("\}")