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 # A naive Nit interpreter
24 # Create a tool context to handle options and paths
25 var toolcontext
= new ToolContext
26 toolcontext
.option_context
.options_before_rest
= true
27 toolcontext
.tooldescription
= "Usage: nit [OPTION]... <file.nit>...\nInterprets and debugs Nit programs."
28 # Add an option "-o" to enable compatibilit with the tests.sh script
29 var opt
= new OptionString("compatibility (does noting)", "-o")
30 toolcontext
.option_context
.add_option
(opt
)
31 var opt_eval
= new OptionBool("Specifies the program from command-line", "-e")
32 var opt_loop
= new OptionBool("Repeatedly run the program for each line in file-name arguments", "-n")
33 toolcontext
.option_context
.add_option
(opt_eval
, opt_loop
)
34 # We do not add other options, so process them now!
35 toolcontext
.process_options
(args
)
37 # We need a model to collect stufs
39 # An a model builder to parse files
40 var modelbuilder
= new ModelBuilder(model
, toolcontext
)
42 var arguments
= toolcontext
.option_context
.rest
43 var progname
= arguments
.first
45 # Here we load an process all modules passed on the command line
46 var mmodules
: Array[MModule]
48 if opt_eval
.value
then
49 var amodule
= toolcontext
.parse_module
(progname
)
50 toolcontext
.check_errors
53 if opt_loop
.value
then
54 var nruntime
= modelbuilder
.load_module
("niti_runtime")
55 if nruntime
== null then
56 toolcontext
.check_errors
59 parent
= nruntime
.mmodule
62 modelbuilder
.load_rt_module
(parent
, amodule
, "-")
64 mmodules
= [amodule
.mmodule
.as(not null)]
66 mmodules
= modelbuilder
.parse
([progname
])
69 modelbuilder
.run_phases
71 if toolcontext
.opt_only_metamodel
.value
then exit
(0)
73 var mainmodule
= toolcontext
.make_main_module
(mmodules
)
75 var self_mm
= mainmodule
76 var self_args
= arguments
78 if toolcontext
.opt_debugger_autorun
.value
then
79 modelbuilder
.run_debugger_autorun
(self_mm
, self_args
)
80 else if toolcontext
.opt_debugger_mode
.value
then
81 modelbuilder
.run_debugger
(self_mm
, self_args
)
83 modelbuilder
.run_naive_interpreter
(self_mm
, self_args
)