axc.xsl

Resolves any includes and hands the resulting file to the templates with mode compiler. Resolving includes is done by templates with mode resolveIncludes.

Procedure:

• 1. Find all anonymous pointcut and pointcutRef elements used for advices. These are all pointcut and pointcutRef elements definded as a direct child of an advice. Descendants of these are not inlcuded, neither are named pointcuts.
• 2. Group the elements found by the type attribute. This means that a group consists of pointcut or pointcutRef elements which have the same value for the type attribute. Then iterate through the groups (Each group is processed once).
• 2.1 Build an unnamed template for each group. The match attribute value is set to the common type attribute value of the group.
• 2.2 Iterate through all distinct pointcutRef (a pointcutRef element is equal with another if their ref attribute value is equal) elements and all pointcut elements in the group.
• 2.2.1 Build an if statement for each group
• 2.2.2 Generate the XPath expression from the pointcut (Using the first pointcut in the group). This uses templates with mode pointcutXPath. PoinctutRef elements are translated to their corresponding pointcut element in a template with mode pointcutXPath.
• 2.2.3 Find all advices which use any of the pointcuts or pointcutRef's in the group and copy them. (These are the advices which are direct parents of a pointcut or pointcutRef)

A pointcut type always directly refers to a specific srcML element. Therefore a template generated for a pointuct of type src:class, is processed for each src:class element in the srcML base code. Because all src:class elements are processed by this template the template logic needs to decide if an advice should be added to a specific src:class element. This is achieved by generating several xsl:if clauses inside the template. Each xsl:if tests if a pointcut matches the srcML element currently processed. Note that xsl:choose would not work for this purpose as it would only allow one pointcut to match one srcML element but of course there can be several pointcuts that match one srcML element (=pointcut type). Generating the test attribute of the xsl:if clause is done by several templates with the mode pointcutXPath (See also stylesheets in compilerRules/restrictions).

 

 

 

 

 

 

 

 

This pointcut is then again applied to the templates taking a pointcut to generate the XPath expression.

This pointcut is then again applied to the templates taking a pointcut to generate the XPath expression. In this case the parent element is a restriction and therefore the type of the pointcut needs to be output.

 

This template uses regular expression of XSLT 2.0. Using <![[CDATA[ sections makes it possible to generate new xsl elements. If a dollarVariable is written in the form ${ var}, the space between the opening curly brace and the closing curly brace is added to variable as indentation. This is especially useful for the dollar variables $functionBody in an 'around' advice.

children of xsl elements are processed further.

Replaces include elements by all contents (pointcuts, advices) of the aspect it refers to.

If an aspect attribute already exists it is not replaces.