Merge: phase: Introduction of new hook method

[nit.git] / src / nit.nit

diff --git a/src/nit.nit b/src/nit.nit
index ad1a388..6441b1a 100644 (file)
--- a/src/nit.nit
+++ b/src/nit.nit
@@ -17,26 +17,76 @@
 # A naive Nit interpreter
 module nit
 
-import naive_interpreter
-import debugger
-import debugger_commons
-
-redef class InterpretCommons
-
-       redef fun launch
-       do
-               super
-               var self_mm = mainmodule.as(not null)
-               var self_args = arguments.as(not null)
-               if toolcontext.opt_debugger_autorun.value then
-                       modelbuilder.run_debugger_autorun(self_mm, self_args)
-               else if toolcontext.opt_debugger_mode.value then
-                       modelbuilder.run_debugger(self_mm, self_args)
-               else
-                       modelbuilder.run_naive_interpreter(self_mm, self_args)
+import interpreter
+import frontend::code_gen
+import parser_util
+import vm
+
+# Create a tool context to handle options and paths
+var toolcontext = new ToolContext
+toolcontext.option_context.options_before_rest = true
+toolcontext.tooldescription = "Usage: nit [OPTION]... <file.nit>...\nInterprets and debugs Nit programs."
+# Add an option "-o" to enable compatibility with the tests.sh script
+var opt = new OptionString("Does nothing. Used for compatibility.", "-o")
+opt.hidden = true
+toolcontext.option_context.add_option(opt)
+var opt_eval = new OptionBool("Specifies the program from command-line", "-e")
+var opt_loop = new OptionBool("Repeatedly run the program for each line in file-name arguments", "-n")
+var opt_vm = new OptionBool("Run the virtual machine instead of the naive interpreter (experimental)", "--vm")
+toolcontext.option_context.add_option(opt_eval, opt_loop, opt_vm)
+# We do not add other options, so process them now!
+toolcontext.process_options(args)
+
+# We need a model to collect stufs
+var model = new Model
+# An a model builder to parse files
+var modelbuilder = new ModelBuilder(model, toolcontext)
+
+var arguments = toolcontext.option_context.rest
+var progname = arguments.first
+
+# Here we load an process all modules passed on the command line
+var mmodules: Array[MModule]
+
+if opt_eval.value then
+       var amodule = toolcontext.parse_module(progname)
+       toolcontext.check_errors
+
+       var parent = null
+       if opt_loop.value then
+               parent = modelbuilder.get_mmodule_by_name(null, null, "niti_runtime")
+               if parent == null then
+                       toolcontext.check_errors
+                       abort
                end
        end
 
+       modelbuilder.load_rt_module(parent, amodule, "-")
+
+       mmodules = [amodule.mmodule.as(not null)]
+else if progname == "-" then
+       var content = stdin.read_all
+       var amodule = toolcontext.parse_module(content)
+       toolcontext.check_errors
+       modelbuilder.load_rt_module(null, amodule, "-")
+       mmodules = [amodule.mmodule.as(not null)]
+else
+       mmodules = modelbuilder.parse([progname])
+end
+
+modelbuilder.run_phases
+toolcontext.run_global_phases(modelbuilder.parsed_modules)
+
+if toolcontext.opt_only_metamodel.value then toolcontext.quit
+
+var mainmodule = toolcontext.make_main_module(mmodules)
+
+var self_mm = mainmodule
+var self_args = arguments
+
+if opt_vm.value then
+       modelbuilder.run_virtual_machine(self_mm, self_args)
+else
+       modelbuilder.run_naive_interpreter(self_mm, self_args)
 end
 
-(new InterpretCommons).launch