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.

Inspection options

Option	Type	Default
To STRING	Group	None
From NODESET	Checkbox	false
From NUMBER	Checkbox	false
From BOOLEAN	Checkbox	true
To NUMBER	Group	None
From NODESET	Checkbox	true
From STRING	Checkbox	true
From BOOLEAN	Checkbox	true
To BOOLEAN	Group	None
From NODESET	Checkbox	false
From STRING	Checkbox	true
From NUMBER	Checkbox	true
	Separator	None
Always flag explicit conversion to unexpected type	Checkbox	true
Ignore conversion of NODESET to BOOLEAN by string()-conversion	Checkbox	true

Inspection Details
Available in:	AppCode 2023.3, CLion 2023.3, DataGrip 2023.3, IntelliJ IDEA 2023.3, JetBrains Rider 2023.1, PhpStorm 2023.3, Qodana for .NET 2023.1, Qodana for JVM 2023.3, Qodana for PHP 2023.3
Plugin:	XPathView + XSLT, 233.SNAPSHOT

Last modified: 13 July 2023