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Posted to c-dev@axis.apache.org by "Robert Lazarski (Jira)" <ji...@apache.org> on 2026/01/29 13:18:00 UTC

[jira] [Comment Edited] (AXIS2C-1545) Undeclared variable in generated c code

    [ https://issues.apache.org/jira/browse/AXIS2C-1545?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18055170#comment-18055170 ] 

Robert Lazarski edited comment on AXIS2C-1545 at 1/29/26 1:17 PM:
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  The new native generator for 2.0.0 does NOT have the same bug because:                                    

  1. Different architecture: It generates C code directly via fprintf() statements, not       
  through XSL template matching with conditional blocks                                       
  2. No condition mismatch: Variables are declared unconditionally at the start of each       
  serialization function, then used unconditionally. There's no scenario where a declaration  
  condition differs from a usage condition.                                                   
  3. The original bug was XSL-specific: The XSL bug was that <xsl:if test="@type or $isUnion">
   controlled declarations, but <xsl:if test="count(property[@attribute])!=0 or @type">       
  controlled usage. If a schema had attributes but no @type, variables weren't declared but   
  were still used. This kind of template condition mismatch can't happen in the native   generator's direct C code emission. 


was (Author: robertlazarski):
  The new native generator for 2.0.0 does NOT have the same bug because:                                    

  1. Different architecture: It generates C code directly via fprintf() statements, not       
  through XSL template matching with conditional blocks                                       
  2. No condition mismatch: Variables are declared unconditionally at the start of each       
  serialization function, then used unconditionally. There's no scenario where a declaration  
  condition differs from a usage condition.                                                   
  3. The original bug was XSL-specific: The XSL bug was that <xsl:if test="@type or $isUnion">
   controlled declarations, but <xsl:if test="count(property[@attribute])!=0 or @type">       
  controlled usage. If a schema had attributes but no @type, variables weren't declared but   
  were still used. This kind of template condition mismatch can't happen in the native        
  gene

> Undeclared variable in generated c code
> ---------------------------------------
>
>                 Key: AXIS2C-1545
>                 URL: https://issues.apache.org/jira/browse/AXIS2C-1545
>             Project: Axis2-C
>          Issue Type: Bug
>          Components: code generation
>    Affects Versions: 1.7.0
>         Environment: Windows XP
>            Reporter: Carl Lefrançois
>            Priority: Major
>              Labels: patch
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> The variables xsi_prefix, type_attrib, xsi_ns, and xsi_type_attri are sometimes not declared even when a code block later uses them.  The condition controlling their generation is not the same as the condition of a block that uses them.
> CADBBeanTemplateSource.xsl revision 909680
> declaration blocks:
> lines 3650, 3653:
>          <xsl:if test="@type or $isUnion">
>          <xsl:if test="@type">
> used in block:
> line 4149
>             <xsl:if test="count(property[@attribute])!=0 or @type">
> Possible patch is to add  'count(property[@attribute])!=0' condition to the declaration tests.  This change worked in at least one case but no run-time test done yet.



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