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#include <stdio.h>
#include <string.h>
#include <iostream>
#include "lex.hpp"
#include "common.hpp"
extern FILE* yyin;
::std::string get_dir_path(const ::std::string& input) {
auto pos = input.rfind("/");
if( pos == ::std::string::npos) {
return "./";
}
else {
return ::std::string( input, 0, input.rfind("/") + 1 );
}
}
::std::unique_ptr<Module> parse_module_file(::std::string filename, ::std::string base_path)
{
::std::cout << "filename = " << filename << ", base_path = " << base_path << ";" << ::std::endl;
if( filename != "-" ) {
yyin = fopen(filename.c_str(), "r");
if( !yyin ) {
fprintf(stderr, "ERROR: Unable to open '%s': '%s'\n", filename.c_str(), strerror(errno));
exit(1);
}
}
ParserContext context( ::std::move(filename) );
context.base_path = ::std::move(base_path);
yylineno = 1;
int rv = yyparse(context);
if( yyin != stdin ) {
fclose(yyin);
}
if( rv != 0 ) {
exit(1);
}
assert( context.output_module.get() );
//context.output_module->set_paths( ::std::move(context.filename), ::std::move(context.base_path) );
return ::std::move(context.output_module);
}
void post_process_module(Module& mod, const ::std::string& mod_filename, const ::std::string& mod_dir_path)
{
::std::cout << "mod = ["<<mod.mod_path()<<"], mod_filename = " << mod_filename << ", mod_dir_path = " << mod_dir_path << ";" << ::std::endl;
for(auto& item : mod.items())
{
Module* opt_submod = dynamic_cast<Module*>(item.get());
if( !opt_submod ) continue;
Module& submod = *opt_submod;
printf("- Module %s\n", submod.name().c_str());
if( ! submod.is_external() ) {
// - inline modules can be ignored.. for now
if( mod_dir_path != "" ) {
submod.set_paths( mod_filename, mod_dir_path + submod.name() + "/" );
}
}
else
{
::std::string filename;
::std::string base_path;
if( mod_filename == "-" ) {
fprintf(stderr, "ERROR: Referencing 'mod %s;' from stdin\n", submod.name().c_str());
exit(1);
}
else if( submod.attrs().has("path") ) {
filename = get_dir_path(mod_filename) + submod.attrs().get_first("path").string();
base_path = get_dir_path(filename);
}
else if( mod_dir_path == "" ) {
fprintf(stderr, "ERROR: Referencing 'mod %s;' from non-controlling file\n", submod.name().c_str());
exit(1);
}
else {
filename = mod_dir_path + submod.name() + ".rs";
base_path = "";
yyin = fopen( filename.c_str(), "r" );
if( !yyin ) {
printf("> '%s' not found\n", filename.c_str());
base_path = mod_dir_path + submod.name() + "/";
filename = base_path + "mod.rs";
}
else {
fclose(yyin);
}
}
assert(filename.size() > 0);
submod = ::std::move( *parse_module_file(filename, base_path) );
submod.set_paths( filename, base_path );
}
auto mp = mod.mod_path();
mp.push_back(submod.name());
submod.set_mod_path(::std::move(mp));
}
for(auto& item : mod.items())
{
Module* opt_submod = dynamic_cast<Module*>(item.get());
if( !opt_submod ) continue;
Module& submod = *opt_submod;
const ::std::string& submod_fname = submod.filename();
const ::std::string& submod_dir = submod.base_dir();
post_process_module(submod, submod_fname, submod_dir);
}
}
int main(int argc, char *argv[]) {
::std::string base_filename;
if(argc < 2 || strcmp(argv[1], "-") == 0) {
yyin = stdin;
base_filename = "-";
}
else {
base_filename = argv[1];
}
yydebug = (getenv("BNFDEBUG") != NULL);
::std::string base_path = (base_filename == "-" ? ::std::string("") : get_dir_path(base_filename));
auto mod = parse_module_file(base_filename, base_path);
printf("output module = %p\n", &*mod);
post_process_module(*mod, base_filename, base_path);
printf("Crate parsed\n");
return 0;
}
void yyerror(ParserContext& context, const char *s) {
fprintf(stderr, "\x1b[31mERROR: %s:%d: yyerror(%s)\x1b[0m\n", context.filename.c_str(), yylineno, s);
exit(1);
}
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