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Tweak the generator pruning code that that generators with empty source

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type list are considered to accept anything and never pruned.


[SVN r28103]
This commit is contained in:
Vladimir Prus
2005-04-11 11:59:10 +00:00
parent 415043ebdb
commit 6c8695e402
1 changed files with 14 additions and 2 deletions
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16
v2/build/generators.jam
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@@ -117,7 +117,7 @@ class generator
# recusrive generators.construct-types call.
: source-types * # types that this generator can handle. If
# empty, the generator can consume anything.
# empty, the generator can consume anything.
: target-types-and-names +
# types the generator will create and, optionally, names for
@@ -724,6 +724,14 @@ local rule viable-source-types-real ( target-type )
for local g in $(generators)
{
if ! [ $(g).source-types ]
{
# Empty source types -- everything can be accepted
result = * ;
generator = ;
t = ;
}
for local source-type in [ $(g).source-types ]
{
if ! $(source-type) in $(result)
@@ -792,7 +800,11 @@ rule viable-source-types-for-generator-real ( generator )
result += [ type.all-derived $(s) ]
[ generators.viable-source-types $(s) ] ;
}
result = [ sequence.unique $(result) ] ;
result = [ sequence.unique $(result) ] ;
if * in $(result)
{
result = * ;
}
return $(result) ;
}
}