typecheck: preserve text operands in arithmetic diagnostics

2026-09-07 04:28:03 +00:00
parent 2e990a4b00
commit 2cf5aaf3a9
7 changed files with 32 additions and 1 deletions
@@ -229,6 +229,12 @@ Type mismatch for field alias.score: expected NUMBER, but this value looks like

 The same check follows simple arithmetic and text-concatenation expressions. For example, `SET player.score player.name + 1` reports that the value looks like `TEXT`, rather than silently accepting an expression whose result cannot fit the `NUMBER` field.

+The checker also identifies text operands in other arithmetic expressions. For example, `SET player.score player.score - player.name` reports the text result instead of silently treating an invalid numeric subtraction as unknown:
+
+```text
+Type mismatch for field player.score: expected NUMBER, but this value looks like TEXT.
+```
+
 TEXT-valued and YESNO-valued field-name mistakes are validated too:

 ```text