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Changed reporting of unability to satisfy a build request.

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* new/target.jam (main-target.generate): Give a more detailed error
        message when no alternative is found. (basic-target.generate):
        Don't exit with error when requirements can't be satisfied. Just
        return an error string.


[SVN r14393]
This commit is contained in:
Vladimir Prus
2002-07-10 09:06:24 +00:00
parent 62670d109e
commit 668108dda5
4 changed files with 70 additions and 60 deletions
Download Patch File Download Diff File Expand all files Collapse all files

63
new/targets.jam
View File

@@ -157,8 +157,14 @@ rule main-target ( name : project )
}
if [ $(alternatives).empty ]
{
# TODO: Should print a name
error "No viable alternative found for main target" [ full-name ] ;
# TODO: probably, should explain, for each alternative, why it can't
# be build.
print.wrapped-text
"Cannot satisfy request to build" [ full-name ]
"with properties " $(properties) ;
print.wrapped-text
"No viable alternative found." ;
EXIT ;
}
local result ;
if [ $(alternatives).size ] = 1
@@ -262,36 +268,35 @@ rule basic-target ( name : project
{
local rproperties =
[ property.refine $(properties) : $(self.requirements) ] ;
if $(rproperties[1]) = "@error"
{
print.wrapped-text
"Cannot satisfy request to build" [ full-name ]
"with properties " $(properties) ;
print.wrapped-text
"Explanation:" $(rproperties[2-]) ;
EXIT ;
}
# TODO: issue a warning when requirements change properties, but
# link-compatibility is still not broken.
local source-targets ;
for local s in $(self.sources)
{
# Try treating this source as reference to main target
local more-targets = [ generate-source $(s) : $(properties) ] ;
if $(more-targets)
if $(rproperties[1]) != "@error"
{
# TODO: issue a warning when requirements change properties, but
# link-compatibility is still not broken.
local source-targets ;
for local s in $(self.sources)
{
source-targets += $(more-targets) ;
# Try treating this source as reference to main target
local more-targets = [ generate-source $(s) : $(properties) ] ;
if $(more-targets)
{
source-targets += $(more-targets) ;
}
else
{
# Just a source file
source-targets +=
[ new virtual-target $(s) : $(self.project) ] ;
}
}
else
{
# Just a source file
source-targets +=
[ new virtual-target $(s) : $(self.project) ] ;
}
}
self.generated.$(property-path) =
[ construct $(source-targets) : $(properties) ] ;
self.generated.$(property-path) =
[ construct $(source-targets) : $(properties) ] ;
}
else
{
self.generated.$(property-path) = $(rproperties) ;
}
}
return $(self.generated.$(property-path)) ;
}

2
test/project_test2.py
View File

@@ -44,7 +44,7 @@ t.copy("dir/Jamfile3", "dir/Jamfile")
expected="""Cannot satisfy request to build dir/foo1 with properties <variant>debug
<optimization>off <rtti>on
Explanation: link-incompatible properties <rtti>on and <rtti>off
No viable alternative found.
"""

63
v2/build/targets.jam
View File

@@ -157,8 +157,14 @@ rule main-target ( name : project )
}
if [ $(alternatives).empty ]
{
# TODO: Should print a name
error "No viable alternative found for main target" [ full-name ] ;
# TODO: probably, should explain, for each alternative, why it can't
# be build.
print.wrapped-text
"Cannot satisfy request to build" [ full-name ]
"with properties " $(properties) ;
print.wrapped-text
"No viable alternative found." ;
EXIT ;
}
local result ;
if [ $(alternatives).size ] = 1
@@ -262,36 +268,35 @@ rule basic-target ( name : project
{
local rproperties =
[ property.refine $(properties) : $(self.requirements) ] ;
if $(rproperties[1]) = "@error"
{
print.wrapped-text
"Cannot satisfy request to build" [ full-name ]
"with properties " $(properties) ;
print.wrapped-text
"Explanation:" $(rproperties[2-]) ;
EXIT ;
}
# TODO: issue a warning when requirements change properties, but
# link-compatibility is still not broken.
local source-targets ;
for local s in $(self.sources)
{
# Try treating this source as reference to main target
local more-targets = [ generate-source $(s) : $(properties) ] ;
if $(more-targets)
if $(rproperties[1]) != "@error"
{
# TODO: issue a warning when requirements change properties, but
# link-compatibility is still not broken.
local source-targets ;
for local s in $(self.sources)
{
source-targets += $(more-targets) ;
# Try treating this source as reference to main target
local more-targets = [ generate-source $(s) : $(properties) ] ;
if $(more-targets)
{
source-targets += $(more-targets) ;
}
else
{
# Just a source file
source-targets +=
[ new virtual-target $(s) : $(self.project) ] ;
}
}
else
{
# Just a source file
source-targets +=
[ new virtual-target $(s) : $(self.project) ] ;
}
}
self.generated.$(property-path) =
[ construct $(source-targets) : $(properties) ] ;
self.generated.$(property-path) =
[ construct $(source-targets) : $(properties) ] ;
}
else
{
self.generated.$(property-path) = $(rproperties) ;
}
}
return $(self.generated.$(property-path)) ;
}

2
v2/test/project_test2.py
View File

@@ -44,7 +44,7 @@ t.copy("dir/Jamfile3", "dir/Jamfile")
expected="""Cannot satisfy request to build dir/foo1 with properties <variant>debug
<optimization>off <rtti>on
Explanation: link-incompatible properties <rtti>on and <rtti>off
No viable alternative found.
"""