[VELOCITY-655] Macro parameter value can't be changed inside a macro

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.6
• Fix Version/s: 1.6.1
• Component/s: Engine
• Assignee: Unassigned
• Reporter: Martin Schwaiger
• Created: 09/Dec/08 12:14
• Updated: 28/Dec/08 21:59
• Resolved: 28/Dec/08 21:59

Description

I've detected a problem when changing parameter values inside a macro using velocity engine version 1.6.

In my use case I have to lower the input string first and then do further processing.

With version 1.5 of the velocity engine there were no problems to implement this use case.

Here is an example which shows the differences between version 1.5 and 1.6:

Template-Code:

#macro(testMacro $x)
#set ($x = $x.toLowerCase())
#set ($y = $x.toLowerCase())
x=$x
y=$y
#end
#testMacro('ABCDEFGHIJKLMNOPQRSTUVWXYZ-Testcase1')
#testMacro("ABCDEFGHIJKLMNOPQRSTUVWXYZ-Testcase2")

Result with Velocity Engine 1.5:
x=abcdefghijklmnopqrstuvwxyz-testcase1
y=abcdefghijklmnopqrstuvwxyz-testcase1
x=abcdefghijklmnopqrstuvwxyz-testcase2
y=abcdefghijklmnopqrstuvwxyz-testcase2

Result with Velocity Engine 1.6:
x=ABCDEFGHIJKLMNOPQRSTUVWXYZ-Testcase1
y=abcdefghijklmnopqrstuvwxyz-testcase1
x=ABCDEFGHIJKLMNOPQRSTUVWXYZ-Testcase2
y=abcdefghijklmnopqrstuvwxyz-testcase2