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|ID||Project||Category||View Status||Date Submitted||Last Update|
|0000109||Core Inform||Assertions and creations||public||2010-06-23 14:42||2010-10-28 00:31|
|Priority||normal||Severity||mild||Reproducibility||have not tried|
|Target Version||Fixed in Version||6F95|
|Summary||0000109: Creating an object with the opposite of a comparative adjective compiles but doesn't work|
|Description||Problem is that the assertion definition shouldn't allow 'rather than' if you can't use the 'rather than' part to assert with.|
|Minimal Source Text To Reproduce|
Every device has a number called cpu power. The cpu power of a device is usually 25. Definition: A device is complex rather than simple if its cpu power is 50 or more. [This assertion definition compiles.] The lab is a room. A complex device called a computer is in the lab. A simple device called a netbook is in the lab. [Using 'simple' as an assertion compiles but makes a complex device.] A device called a tablet is in the lab. Instead of examining a simple device, say "Simple." Instead of examining a complex device, say "Complex." [Problem is that the assertion definition shouldn't allow 'rather than' if you can't use the 'rather than' part to assert with.] Test me with "showme computer/showme netbook/showme tablet/x computer/x netbook/x tablet".
|Additional Information||Make the 'rather than' part correctly assert or don't allow the 'rather than' part in the definition or generate a compiler error telling the user he cannot use the 'rather than' part as an assertion.|
|Tags||No tags attached.|
|Effect||(serious/mild) Game compiles but misbehaves|
|This could be a "compiler accepts invalid code" issue: if creating a "simple" device is not intended to work, then either the definition of "simple" or the device assertion should cause a compile-time error.|
Yes, Inform should have produced a problem message in reply to
A simple device called a netbook is in the lab.
and now does so. The line
A complex device called a computer is in the lab.
is on the other hand legal, because Inform can infer a reasonable decision from it - to create the computer with the threshold value, i.e., with cpu power 50.
|2010-06-23 14:42||jmcgrew||New Issue|
|2010-06-23 14:45||jmcgrew||Note Added: 0000137|
|2010-06-23 14:45||jmcgrew||Status||new => acknowledged|
|2010-06-23 14:49||jmcgrew||Additional Information Updated||View Revisions|
|2010-06-23 17:59||EmacsUser||Status||acknowledged => confirmed|
|2010-09-29 03:25||graham||Note Added: 0000616|
|2010-09-29 03:25||graham||Status||confirmed => resolved|
|2010-09-29 03:25||graham||Resolution||open => fixed|
|2010-09-29 03:25||graham||Assigned To||=> graham|
|2010-10-24 12:04||jmcgrew||Reporter||jmcgrew => email|
|2010-10-25 21:14||jmcgrew||Fixed in Version||=> 6F95|
|2010-10-28 00:31||jmcgrew||Status||resolved => closed|
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