//
// driver.cs: The compiler command line driver.
//
// Author: Miguel de Icaza (miguel@gnu.org)
//
// Licensed under the terms of the GNU GPL
//
// (C) 2001 Ximian, Inc (http://www.ximian.com)
//
namespace Mono.CSharp
{
using System;
using System.Reflection;
using System.Reflection.Emit;
using System.Collections;
using System.IO;
using System.Globalization;
using Mono.Languages;
enum Target {
Library, Exe, Module, WinExe
};
///
/// The compiler driver.
///
public class Driver
{
//
// Assemblies references to be linked. Initialized with
// mscorlib.dll here.
static ArrayList references;
// Lookup paths
static ArrayList link_paths;
// Whether we want Yacc to output its progress
static bool yacc_verbose = false;
// Whether we want to only run the tokenizer
static bool tokenize = false;
static int error_count = 0;
static string first_source;
static Target target = Target.Exe;
static string target_ext = ".exe";
static bool parse_only = false;
static bool timestamps = false;
static Hashtable response_file_list;
static Hashtable source_files = new Hashtable ();
//
// An array of the defines from the command line
//
static ArrayList defines;
//
// Last time we took the time
//
static DateTime last_time;
static void ShowTime (string msg)
{
DateTime now = DateTime.Now;
TimeSpan span = now - last_time;
last_time = now;
Console.WriteLine (
"[{0:00}:{1:000}] {2}",
span.Seconds, span.Milliseconds, msg);
}
static int tokenize_file (string input_file)
{
Stream input;
try {
input = File.OpenRead (input_file);
} catch {
Report.Error (2001, "Source file '" + input_file + "' could not be opened");
return 1;
}
using (input){
Tokenizer lexer = new Tokenizer (input, input_file, defines);
int token, tokens = 0, errors = 0;
while ((token = lexer.token ()) != Token.EOF){
Location l = lexer.Location;
tokens++;
if (token == Token.ERROR)
errors++;
}
Console.WriteLine ("Tokenized: " + tokens + " found " + errors + " errors");
}
return 0;
}
static int parse (string input_file)
{
CSharpParser parser;
Stream input;
int errors;
try {
input = File.OpenRead (input_file);
} catch {
Report.Error (2001, "Source file '" + input_file + "' could not be opened");
return 1;
}
parser = new CSharpParser (input_file, input, defines);
parser.yacc_verbose = yacc_verbose;
try {
errors = parser.parse ();
} catch (Exception ex) {
Console.WriteLine (ex);
Console.WriteLine ("Compilation aborted");
return 1;
} finally {
input.Close ();
}
return errors;
}
static void Usage (bool is_error)
{
Console.WriteLine (
"Mono C# compiler, (C) 2001 Ximian, Inc.\n" +
"mcs [options] source-files\n" +
" --about About the Mono C# compiler\n" +
" --checked Set default context to checked\n" +
" --define SYM Defines the symbol SYM\n" +
" --fatal Makes errors fatal\n" +
" --stacktrace Shows stack trace at error location\n" +
" -L PATH Adds PATH to the assembly link path\n" +
" --nostdlib Does not load core libraries\n" +
" --nowarn XXX Ignores warning number XXX\n" +
" -o FNAME Specifies output file\n" +
" --optimize Optimizes\n" +
" --parse Only parses the source file\n" +
" --probe X Probes for the source to generate code X on line L\n" +
" --target KIND Specifies the target (KIND is one of: exe, winexe, " +
"library, module)\n" +
" --timestamp Displays time stamps of various compiler events\n" +
" --unsafe Allows unsafe code\n" +
" --werror Treat warnings as errors\n" +
" --wlevel LEVEL Sets warning level (the highest is 4, the default)\n" +
" -r References an assembly\n" +
" -v Verbose parsing (for debugging the parser)\n" +
" @file Read response file for more options");
if (is_error)
error_count++;
}
static void About ()
{
Console.WriteLine (
"The Mono C# compiler is (C) 2001 Ximian, Inc.\n\n" +
"The compiler source code is released under the terms of the GNU GPL\n\n" +
"For more information on Mono, visit the project Web site\n" +
" http://www.go-mono.com\n\n" +
"The compiler was written by Miguel de Icaza and Ravi Pratap");
}
static void error (string msg)
{
Console.WriteLine ("Error: " + msg);
}
static void notice (string msg)
{
Console.WriteLine (msg);
}
public static int Main (string[] args)
{
MainDriver (args);
return error_count;
}
static public int LoadAssembly (string assembly)
{
Assembly a;
string total_log = "";
try {
a = Assembly.Load (assembly);
RootContext.TypeManager.AddAssembly (a);
return 0;
} catch (FileNotFoundException){
foreach (string dir in link_paths){
string full_path = dir + "/" + assembly + ".dll";
try {
a = Assembly.LoadFrom (full_path);
RootContext.TypeManager.AddAssembly (a);
return 0;
} catch (FileNotFoundException ff) {
total_log += ff.FusionLog;
continue;
}
}
} catch (BadImageFormatException f) {
error ("// Bad file format while loading assembly");
error ("Log: " + f.FusionLog);
return 1;
} catch (FileLoadException f){
error ("// File Load Exception: ");
error ("Log: " + f.FusionLog);
return 1;
} catch (ArgumentNullException){
error ("// Argument Null exception ");
return 1;
}
Report.Error (6, "Can not find assembly `" + assembly + "'" );
Console.WriteLine ("Log: \n" + total_log);
return 0;
}
///
/// Loads all assemblies referenced on the command line
///
static public int LoadReferences ()
{
int errors = 0;
foreach (string r in references)
errors += LoadAssembly (r);
return errors;
}
static void SetupDefaultDefines ()
{
defines = new ArrayList ();
defines.Add ("__MonoCS__");
}
static string [] LoadArgs (string file)
{
StreamReader f;
ArrayList args = new ArrayList ();
string line;
try {
f = new StreamReader (file);
} catch {
return null;
}
while ((line = f.ReadLine ()) != null){
string [] line_args = line.Split (new char [] { ' ' });
foreach (string arg in line_args)
args.Add (arg);
}
string [] ret_value = new string [args.Count];
args.CopyTo (ret_value, 0);
return ret_value;
}
//
// Returns the directory where the system assemblies are installed
//
static string GetSystemDir ()
{
Assembly [] assemblies = AppDomain.CurrentDomain.GetAssemblies ();
foreach (Assembly a in assemblies){
if (a.FullName.EndsWith ("corlib.dll")){
string s = a.CodeBase;
return s.Substring (0, s.LastIndexOf ("/"));
}
}
Report.Error (-15, "Can not compute my system path");
return "";
}
///
/// Parses the arguments, and drives the compilation
/// process.
///
///
///
/// TODO: Mostly structured to debug the compiler
/// now, needs to be turned into a real driver soon.
///
static void MainDriver (string [] args)
{
int errors = 0, i;
string output_file = null;
references = new ArrayList ();
link_paths = new ArrayList ();
SetupDefaultDefines ();
//
// Setup defaults
//
// This is not required because Assembly.Load knows about this
// path.
//
link_paths.Add (GetSystemDir ());
int argc = args.Length;
for (i = 0; i < argc; i++){
string arg = args [i];
if (arg.StartsWith ("@")){
string [] new_args, extra_args;
string response_file = arg.Substring (1);
if (response_file_list == null)
response_file_list = new Hashtable ();
if (response_file_list.Contains (response_file)){
Report.Error (
1515, "Response file `" + response_file +
"' specified multiple times");
Environment.Exit (1);
}
response_file_list.Add (response_file, response_file);
extra_args = LoadArgs (response_file);
if (extra_args == null){
Report.Error (2011, "Unable to open response file: " +
response_file);
return;
}
new_args = new string [extra_args.Length + argc];
args.CopyTo (new_args, 0);
extra_args.CopyTo (new_args, argc);
args = new_args;
argc = new_args.Length;
continue;
}
if (arg.StartsWith ("-")){
switch (arg){
case "-v":
yacc_verbose = true;
continue;
case "--parse":
parse_only = true;
continue;
case "--main": case "-m":
if ((i + 1) >= argc){
Usage (true);
return;
}
RootContext.MainClass = args [++i];
continue;
case "--unsafe":
RootContext.Unsafe = true;
continue;
case "--optimize":
RootContext.Optimize = true;
continue;
case "--help":
Usage (false);
return;
case "--define":
if ((i + 1) >= argc){
Usage (true);
return;
}
defines.Add (args [++i]);
continue;
case "--probe": {
int code = 0;
try {
code = Int32.Parse (
args [++i], NumberStyles.AllowLeadingSign);
Report.SetProbe (code);
} catch {
Report.Error (-14, "Invalid number specified");
}
continue;
}
case "--tokenize": {
tokenize = true;
continue;
}
case "-o": case "--output":
if ((i + 1) >= argc){
Usage (true);
return;
}
output_file = args [++i];
continue;
case "--checked":
RootContext.Checked = true;
continue;
case "--stacktrace":
Report.Stacktrace = true;
continue;
case "--target":
if ((i + 1) >= argc){
Usage (true);
return;
}
string type = args [++i];
switch (type){
case "library":
target = Target.Library;
target_ext = ".dll";
break;
case "exe":
target = Target.Exe;
break;
case "winexe":
target = Target.WinExe;
break;
case "module":
target = Target.Module;
target_ext = ".dll";
break;
}
continue;
case "-r":
if ((i + 1) >= argc){
Usage (true);
return;
}
references.Add (args [++i]);
continue;
case "-L":
if ((i + 1) >= argc){
Usage (true);
return;
}
link_paths.Add (args [++i]);
continue;
case "--nostdlib":
RootContext.StdLib = false;
continue;
case "--fatal":
Report.Fatal = true;
continue;
case "--werror":
Report.WarningsAreErrors = true;
continue;
case "--nowarn":
if ((i + 1) >= argc){
Usage (true);
return;
}
int warn;
try {
warn = Int32.Parse (args [++i]);
} catch {
Usage (true);
return;
}
Report.SetIgnoreWarning (warn);
continue;
case "--wlevel":
if ((i + 1) >= argc){
Usage (true);
error_count++;
return;
}
int level;
try {
level = Int32.Parse (args [++i]);
} catch {
Usage (true);
return;
}
if (level < 0 || level > 4){
Report.Error (1900, "Warning level must be 0 to 4");
return;
} else
RootContext.WarningLevel = level;
continue;
case "--about":
About ();
return;
case "--timestamp":
timestamps = true;
last_time = DateTime.Now;
continue;
default:
Usage (true);
return;
}
}
if (first_source == null)
first_source = arg;
string [] files = Directory.GetFiles (".", arg);
foreach (string f in files){
if (!f.ToLower ().EndsWith (".cs")){
error ("Do not know how to compile " + arg);
errors++;
continue;
}
if (source_files.Contains (f)){
Report.Error (
1516,
"Source file `" + f + "' specified multiple times");
Environment.Exit (1);
} else
source_files.Add (f, f);
if (tokenize)
tokenize_file (f);
else {
errors += parse (f);
}
}
}
if (tokenize)
return;
if (first_source == null){
Report.Error (2008, "No files to compile were specified");
return;
}
if (Report.Errors > 0)
return;
if (parse_only)
return;
//
// Load Core Library for default compilation
//
if (RootContext.StdLib){
references.Insert (0, "mscorlib");
references.Insert (1, "System");
}
if (errors > 0){
error ("Parsing failed");
return;
}
//
// Load assemblies required
//
if (timestamps)
ShowTime ("Loading references");
errors += LoadReferences ();
if (timestamps)
ShowTime (" References loaded");
if (errors > 0){
error ("Could not load one or more assemblies");
return;
}
error_count = errors;
//
// Quick hack
//
if (output_file == null){
int pos = first_source.LastIndexOf (".");
if (pos > 0)
output_file = first_source.Substring (0, pos) + target_ext;
else
output_file = first_source + target_ext;
}
RootContext.CodeGen = new CodeGen (output_file, output_file);
//
// Before emitting, we need to get the core
// types emitted from the user defined types
// or from the system ones.
//
if (timestamps)
ShowTime ("Initializing Core Types");
RootContext.TypeManager.InitCoreTypes ();
if (timestamps)
ShowTime (" Core Types done");
RootContext.TypeManager.AddModule (RootContext.CodeGen.ModuleBuilder);
//
// The second pass of the compiler
//
if (timestamps)
ShowTime ("Resolving tree");
RootContext.ResolveTree ();
if (timestamps)
ShowTime ("Populate tree");
RootContext.PopulateTypes ();
if (Report.Errors > 0){
error ("Compilation failed");
return;
}
//
// The code generator
//
if (timestamps)
ShowTime ("Emitting code");
RootContext.EmitCode ();
if (timestamps)
ShowTime (" done");
if (Report.Errors > 0){
error ("Compilation failed");
return;
}
if (timestamps)
ShowTime ("Closing types");
RootContext.CloseTypes ();
PEFileKinds k = PEFileKinds.ConsoleApplication;
if (target == Target.Library || target == Target.Module)
k = PEFileKinds.Dll;
else if (target == Target.Exe)
k = PEFileKinds.ConsoleApplication;
else if (target == Target.WinExe)
k = PEFileKinds.WindowApplication;
if (target == Target.Exe || target == Target.WinExe){
MethodInfo ep = RootContext.EntryPoint;
if (ep == null){
Report.Error (5001, "Program " + output_file +
" does not have an entry point defined");
return;
}
RootContext.CodeGen.AssemblyBuilder.SetEntryPoint (ep, k);
}
RootContext.CodeGen.Save (output_file);
if (timestamps)
ShowTime ("Saved output");
if (Report.Errors > 0){
error ("Compilation failed");
return;
} else if (Report.ProbeCode != 0){
error ("Failed to report code " + Report.ProbeCode);
Environment.Exit (124);
}
}
}
}