1 # This file is part of NIT ( http://www.nitlanguage.org ).
3 # Copyright 2012 Jean Privat <jean@pryen.org>
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
17 # The Nit virtual machine launcher
23 # Create a tool context to handle options and paths
24 var toolcontext
= new ToolContext
25 toolcontext
.tooldescription
= "Usage: nitvm [OPTION]... <file.nit>...\nExecutes Nit programs with a virtual machine."
26 # Add an option "-o" to enable compatibility with the tests.sh script
27 var opt
= new OptionString("compatibility (does nothing)", "-o")
28 toolcontext
.option_context
.add_option
(opt
)
29 var opt_mixins
= new OptionArray("Additional modules to min-in", "-m")
30 toolcontext
.option_context
.add_option
(opt_mixins
)
31 # We do not add other options, so process them now!
32 toolcontext
.process_options
(args
)
34 # We need a model to collect stufs
37 # Add a model builder to parse files
38 var modelbuilder
= new ModelBuilder(model
, toolcontext
)
40 var arguments
= toolcontext
.option_context
.rest
41 var progname
= arguments
.first
43 # Here we load and process all modules passed on the command line
44 var mmodules
= modelbuilder
.parse
([progname
])
45 mmodules
.add_all modelbuilder
.parse
(opt_mixins
.value
)
46 modelbuilder
.run_phases
48 if toolcontext
.opt_only_metamodel
.value
then exit
(0)
50 var mainmodule
: nullable MModule
52 # Here we launch the interpreter on the main module
53 if mmodules
.length
== 1 then
54 mainmodule
= mmodules
.first
56 mainmodule
= new MModule(model
, null, mmodules
.first
.name
, mmodules
.first
.location
)
57 mainmodule
.set_imported_mmodules
(mmodules
)
60 var self_mm
= mainmodule
61 var self_args
= arguments
63 modelbuilder
.run_virtual_machine
(self_mm
, self_args
)