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Issue an error when set-default is called with a free or optional feature

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[SVN r50391]
This commit is contained in:
Steven Watanabe
2008-12-27 22:04:21 +00:00
parent 9f46413ba8
commit e03ee8a242
1 changed files with 14 additions and 0 deletions
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14
src/build/feature.jam
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@@ -161,6 +161,20 @@ rule feature (
rule set-default ( feature : value )
{
local f = [ grist $(feature) ] ;
local a = $($(f).attributes) ;
local bad-attribute = ;
if free in $(a)
{
bad-attribute = free ;
}
else if optional in $(a)
{
bad-attribute = optional ;
}
if $(bad-attribute)
{
errors.error "$(bad-attribute) property $(f) cannot have a default." ;
}
if ! $(value) in $($(f).values)
{
errors.error "The specified default value, '$(value)' is invalid"