SpiderBasic 3.20 does not enforce AddElement() for structured list assignment, unlike PureBasic
Posted: Tue Sep 15, 2026 10:54 pm
Hello, I found a discrepancy between the PureBasic and SpiderBasic compilers regarding structured dynamic lists. In PureBasic, the following code throws a compiler error because the list element must be explicitly initialized with AddElement() before assignment. However, SpiderBasic compiles it successfully without any warnings, which breaks the "write once, compile anywhere" syntax rule between PB and SB. Reproduce
Expected behavior: SpiderBasic should throw a compiler error stating that AddElement() is required, or that direct assignment to a structured list is not allowed, matching PureBasic's strict type safety. Best regards.
Code: Select all
Structure MyMap
List MyList.i()
EndStructure
Define NewMap MyMap.MyMap()
; This line compiles fine in SB, but causes a compiler error in PB:
MyMap("1")\MyList() = 1