Saxonica Developer Community

2021-07-24

• 
  Michael Kay Saxon

  11:03 · Commented on issue

  The problem is specific to the API `WhitespaceStrippingPolicy.makeCustomPolicy()`, which supplies a predicate used to decide whether whitespace should be stripped or preserved. There's nothing in the documentation of this API that says w... Bug #5047: Whitespace stripping in DocumentBuilder ignores xml:space

  During Saxon-CS development I created a new unit test `TestDocumentBuilder.TestCustomWhitespacePolicyWithXmlSpace` and found that it fails when retrofitted to Saxon 10. The test is designed to ensure that no whitespace stripping occurs f...
• 
  Michael Kay During Saxon-CS development I created a new unit test `TestDocumentBuilder.TestCustomWhitespacePolicyWithXmlSpace` and found that it fails when retrofitted to Saxon 10. The test is designed to ensure that no whitespace stripping occurs f...

  10:25 · Created issue

2021-07-23

• 
  Michael Kay Saxon

  10:10 · Closed issue

  The problem is solved by making `VariableReferenceAdjunct` extend `CopyOfAdjunct`, thus inheriting its `getWatchMaker` method. Bug #5035 (Resolved): SXST0067 Component cannot be streamed, although it is guaranteed streamable according to W3C rules. No watch implemented for locVarRef

  I was trying to be creative and tried to write a generic function to use positional grouping and streaming, the code runs fine without streaming but gives the error
  ~~~
  SXST0067 Component cannot be streamed, although it is guarant...
• 
  Michael Kay At the code level, the problem is that `VariableReferenceAdjunct` does not implement the method `getWatchMaker()`, which means it picks up the default implementation in the superclass `StreamingAdjunct`, which throws the observed error w...

  09:53 · Commented on issue

2021-07-22

• 
  Michael Kay Saxon

  17:07 · Commented on issue

  I think this test case is doomed to failure under the rules in §19.8.8.11 for dynamic function calls: The operands to a dynamic function call have usage navigation, therefore a dynamic call that supplies current-group() as an argument, w... Bug #5035: SXST0067 Component cannot be streamed, although it is guaranteed streamable according to W3C rules. No watch implemented for locVarRef

  I was trying to be creative and tried to write a generic function to use positional grouping and streaming, the code runs fine without streaming but gives the error
  ~~~
  SXST0067 Component cannot be streamed, although it is guarant...
• 
  Michael Kay Reproduced as XSLT test case su-absorbing-301

  16:08 · Edited issue
• 
  Michael Kay Saxon

  12:46 · Closed issue

  Bug #5044 (Resolved): Java calls, null values

  If a null value is supplied as argument to a Java instance function…
  ```
  Q{java:java.lang.Object}hash-code(())
  ```
  …a NullPointerException is returned. Users might rather expect an XQuery error.
• 
  Michael Kay The case of XPath-to-Java conversion where the required type is `java.lang.Object` isn't very clearly defined, but I've decided that for the case where this is the required type of the first argument to an instance method, we'll use a ne...

  12:39 · Commented on issue
• 
  Michael Kay I added a test where the argument is dynamically null:
  ~~~
  Q{java:java.lang.Object}hash-code(current-date()[year-from-date(.) lt 2000])
  ~~~
  and this runs without error: in this case no conversion is applied to the argument, the v...

  11:03 · Commented on issue
• 
  Michael Kay I expect this example is artificial, I'll probably need to construct another test case where the static type is OK but the argument evaluates to an empty sequence at run-time.
  With this example, it slips through static checking, which...

  10:02 · Commented on issue