Push a non-existent ref's value as 0. (Don't just crash.)

Fixes https://gitlab.com/kicad/code/kicad/issues/7971
2021-03-20 11:04:36 +00:00 · 2021-03-20 11:04:36 +00:00 · b1fa02bcc8
parent 4073153e75
commit b1fa02bcc8
1 changed files with 5 additions and 2 deletions
--- a/common/libeval_compiler/libeval_compiler.cpp
+++ b/common/libeval_compiler/libeval_compiler.cpp
@ -1088,8 +1088,11 @@ void UOP::Exec( CONTEXT* ctx )
    {
    case TR_UOP_PUSH_VAR:
    {
-        auto value = ctx->AllocValue();
-        value->Set( m_ref->GetValue( ctx ) );
+        VALUE* value = ctx->AllocValue();
+
+        if( m_ref )
+            value->Set( m_ref->GetValue( ctx ) );
+
        ctx->Push( value );
    }
        break;