Code Inspections in XPath

This topic lists all JetBrains Rider code inspections available in XPath.

You can toggle specific inspections or change their severity level on the Editor | Inspection Settings | Inspection Severity | Other Languages page of the IDE settings Ctrl+Alt+S.

Inspection	Description	Default Severity
Hardcoded namespace prefix	Reports comparisons of the `name()` function with a string that contains a colon (`:`). Such usages usually indicate a hardcoded namespace prefix in the comparison. As a result, the code will break when run against XML that uses another prefix for the same namespace. Example: <xsl:if test="name() = 'xlink:href'">...<xsl:if> Powered by XPathView + XSLT-Support	Warning
Implicit type conversion	Reports implicit conversions between the predefined XPath-types `STRING`, `NUMBER`, `BOOLEAN`, and `NODESET`. Helps to write XSLT scripts that are more expressive about types and prevents subtle bugs: Example: <xsl:if test="foo" /> is not the same as <xsl:if test="string(foo)" /> The first test checks whether the element "foo" exists (`count(foo) > 0)`; the latter one however is only true if the element actually contains any text (`string-length(foo) > 0`). Suggests making the type conversion more explicit. Use the following options to configure the inspection: Enable or disable implicit conversions between certain types Always report explicit conversions that do not result in the actually expected type, for example, `<xsl:if test="number(foo)" />` Ignore conversion from `NODESET` to `BOOLEAN` by using the `string()` function as a shortcut for writing `string-length() > 0`. Powered by XPathView + XSLT-Support	Warning
Redundant type conversion	Reports unnecessary type conversions. Type conversions are unnecessary when the argument type of a `string()`, `number()`, or `boolean()` function is already the same as the function's return type or if the expected expression type is `any`. Suggests removing the unnecessary conversion. Powered by XPathView + XSLT-Support	Warning
Unknown element or attribute name	Reports names of elements or attributes that are used in an XPath-expression but are missing in the associated XML files and are not defined in the referenced schemas. Such names are often the result of typos and would otherwise probably only be discovered at runtime. Example: <xsl:template match="h:txtarea" /> If the `h` is bound to the XHTML namespace, the inspection will report this part of the `match` expression as an unknown element name because the correct name of the element is "textarea". Powered by XPathView + XSLT-Support	Warning
XPath predicate with index 0	Reports usages of `0` in a predicate index or in a comparison with the function `position()`. Such usage is almost always a bug because in XPath, the index starts at `1`, not at `0`. Example: //someelement[position() = 0] or `//something[0]` Powered by XPathView + XSLT-Support	Warning

Last modified: 13 May 2022