0004309: Compiler/Parser allows undefined variable when LHS to :=

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Category

Severity

Reproducibility

Date Submitted

Last Update

0004309

[Squeak] Compiler

minor

always

07-21-06 16:57

05-12-14 22:19

Reporter

kwl

View Status

public

Assigned To

nicolas cellier

Priority

normal

Resolution

fixed

Status

resolved

Product Version

3.9

Summary

0004309: Compiler/Parser allows undefined variable when LHS to :=

Description

The following snippet does NOT raise an error message:

| tmp1 tmp2 |
  tmp1 := 2.
  tmp2 := tmp2 + tmp1

But the following modification DOES raise an "undefined. proceed?" dialog

| tmp1 tmp2 |
  tmp1 := 2.
  tmp1 := tmp2 + tmp1

Tested with 3.8 + 3.9.

Note that the error message should speak about "uninitialized" instead of "undefined" because the variables are indeed between the |'s.

Additional Information

There can only be ONE rule for what is uninitialized and what is initialized, regardless of how a variable is used "mentioned" for the first time on the RHS of an expression.

Attached Files

Relationships

Notes
(0014499 - 102 - 102 - 102 - 102 - 102 - 102) nicolas cellier 05-12-14 22:19	This is no more true in Squeak 4.5, and probably has been fixed for a long time now (Eliot's closure?)

Issue History
Date Modified	Username	Field	Change
07-21-06 16:57	kwl	New Issue
05-12-14 22:19	nicolas cellier	Status	new => resolved
05-12-14 22:19	nicolas cellier	Fixed in Version	=> trunk
05-12-14 22:19	nicolas cellier	Resolution	open => fixed
05-12-14 22:19	nicolas cellier	Assigned To	=> nicolas cellier
05-12-14 22:19	nicolas cellier	Note Added: 0014499

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