# Generator of Nit modules to wrap Objective-C services
module objcwrapper
+import nitcc_runtime
+import opts
+
import objc_visitor
import objc_model
import objc_generator
-
-import nitcc_runtime
import objc_lexer
import objc_parser
+import preprocessing
+
+var opt_help = new OptionBool("Show this help message", "-h", "--help")
+
+var opts = new OptionContext
+opts.add_option(opt_help, opt_output, opt_init_as_methods, opt_gcc_options)
+opts.parse args
-var v = new Interpretor
-var g = new CodeGenerator
+if opts.errors.not_empty or opts.rest.is_empty or opt_help.value then
+ if opts.errors.not_empty then print_error opts.errors.join("\n")
-for arg in args do
+ print_error """
+Usage: objcwrapper [options] input_file [other_input_file [...]]
+Options:"""
+ opts.usage
+
+ if opt_help.value then exit 0
+ exit 1
+end
+
+var v = new ObjcVisitor
+
+var failed_parsing = new Array[String]
+for src in opts.rest do
# Read input
- var content = arg.to_path.read_all
+ var content = src.preprocess_content
# Parse
var lexer = new Lexer_objc(content)
# Check for errors
if root isa NError then
- print_error "Syntax Error: {root.message}: {root.position or else ""}"
+ var pos = root.position
+ print_error "Syntax Error: {root.message}, at {pos or else ""}"
+ print_error "in {src}"
+ if pos != null then print_error pos.underline(content)
+ failed_parsing.add src
continue
end
v.enter_visit root
end
-g.generator v.model.classes
+var g = new CodeGenerator(v.model)
+g.generate
+
+if failed_parsing.not_empty then
+ print_error "Failed to parse {failed_parsing.length}/{opts.rest.length} files:"
+ print_error failed_parsing.join(" ")
+end