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//
// cgcmain.c
//

#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include "slglobals.h"

// Profile registration functions:

int RegisterProfiles_generic(void);

static int (*RegistrationFunctions[])(void) = {
    RegisterProfiles_generic,
};

int CommandLineArgs(int argc, char **argv, int pass);

int main(int argc, char **argv)
{
    const char *copyright = "(c) 2001-2002 NVIDIA Corp.";
    int numerrors, ii;

    if (!InitCgStruct()) {
        return 1;
    }
    if (!CommandLineArgs(argc, argv, 0))
        return 1;
    if (!InitAtomTable(atable, 0)) {
        printf(OPENSL_TAG ": atom table initialization failed.\n");
        return 1;
    }
    if (!InitScanner(Cg))
        return 1;
    for (ii = 0; ii < sizeof(RegistrationFunctions)/sizeof(RegistrationFunctions[0]); ii++)
        RegistrationFunctions[ii]();
    if (!CommandLineArgs(argc, argv, 1))
        return 1;
    if (!InitTokenStreams(Cg))
        return 1;
    if (!InitSymbolTable(Cg))
        return 1;
    if (!SetInputFile(Cg->options.sourceFileName))
        return 1;
    if (Cg->options.PrintVersion) {
        printf(OPENSL_TAG ": version %d.%d.%04d%s, build date %s %s.\n",
            HSL_VERSION, HSL_SUB_VERSION, HSL_SUB_SUB_VERSION, NDA_STRING, Build_Date, Build_Time);
    }
#if defined(CGC_ENABLE_TOOLS)
    if (Cg->options.Tokenize) {
        TokenizeInput();
    } else
#endif // defined(CGC_ENABLE_TOOLS)
    {
        if (!OpenListFile())
            return 1;
        if (!OpenOutputFile())
            return 1;
        PrintOptions(argc, argv);
        if (!Cg->options.NoStdlib) {
            if (!ReadFromTokenStream(&stdlib_cg_stream,
                                     LookUpAddString(atable, "<stdlib>"),
                                     StartGlobalScope))
            {
                return 1;
            }
        } else
            StartGlobalScope(Cg);
        #if defined(_DEBUG) || defined(__GNUC__)
            yyparse();
        #else
            __try {
                yyparse();
            } __except(1) {
                FatalError("*** exception during compilation ***");
            }
        #endif
        CompileProgram(Cg, Cg->tokenLoc, CurrentScope);
        numerrors = FreeScanner(Cg);
        while (CurrentScope) {
            if (Cg->options.DumpParseTree)
                PrintScopeDeclarations();
            PopScope();
        }
        if (Cg->options.DumpAtomTable)
            PrintAtomTable(atable);
    }
    FreeSymbolTable(Cg);
    FreeAtomTable(atable);
    CloseOutputFiles("End of program");
    return numerrors;
} // main

void PrintHelp()
{
    slProfile *lProfile;
    int ii;

    printf("usage: cgc [-quiet] [-nocode] [-nostdlib] [-longprogs] [-v] [-Dmacro[=value]] \n           [-profile id] [-entry id] [-o ofile] [file.cg]\n");
#if defined(CGC_DEBUG_THE_COMPILER)
    printf("           [-atom] [-scan] [-tree] [-node] [-final] [-trap] [-comments] [-cdbg0]\n");
#endif
    printf("supported profiles:\n");
    ii = 0;
    while ((lProfile = EnumerateProfiles(ii++)))
        printf("    \"%s\"\n", GetAtomString(atable, lProfile->name));
} // PrintHelp

int CommandLineArgs(int argc, char **argv, int pass)
{
    int ii;

    for (ii = 1; ii < argc; ii++) {
        if (argv[ii][0] == '-') {
            if (!strcmp(argv[ii], "-debug")) {
                if (pass == 0)
                    Cg->options.DebugMode = 1;
            } else if (!strcmp(argv[ii], "-quiet") || !strcmp(argv[ii], "-q")) {
                if (pass == 0)
                    Cg->options.Quiet = 1;
            } else if (!strcmp(argv[ii], "-nocode")) {
                if (pass == 0)
                    Cg->options.NoCodeGen = 1;
            } else if (!strcmp(argv[ii], "-nowarn")) {
                if (pass == 0)
                    Cg->options.NoWarnings = 1;
            } else if (!strcmp(argv[ii], "-nostdlib")) {
                if (pass == 0)
                    Cg->options.NoStdlib = 1;
            } else if (!strcmp(argv[ii], "-error")) {
                if (pass == 0)
                    Cg->options.ErrorMode = 1;
            } else if (!strcmp(argv[ii], "-longprogs")) {
                if (pass == 0)
                    Cg->options.AllowLongPrograms = 1;
            } else if (!strcmp(argv[ii], "-posinv")) {
                if (pass == 0)
                    Cg->options.PositionInvariant = 1;
            } else if (!strcmp(argv[ii], "-v")) {
                if (pass == 0)
                    Cg->options.PrintVersion = 1;
#if defined(CGC_ENABLE_TOOLS)
            } else if (!strcmp(argv[ii], "-tokenize")) {
                if (pass == 0)
                    Cg->options.Tokenize = 1;
#endif // defined(CGC_ENABLE_TOOLS)
#if defined(CGC_DEBUG_THE_COMPILER)
            } else if (!strcmp(argv[ii], "-atom")) {
                if (pass == 0)
                    Cg->options.DumpAtomTable = 1;
            } else if (!strcmp(argv[ii], "-scan")) {
                if (pass == 0)
                    Cg->options.TraceScanner = 1;
            } else if (!strcmp(argv[ii], "-tree")) {
                if (pass == 0)
                    Cg->options.DumpParseTree = 1;
            } else if (!strcmp(argv[ii], "-node")) {
                if (pass == 0)
                    Cg->options.DumpNodeTree = 1;
            } else if (!strcmp(argv[ii], "-final")) {
                if (pass == 0)
                    Cg->options.DumpFinalTree = 1;
            } else if (!strcmp(argv[ii], "-trap")) {
                if (pass == 0)
                    Cg->options.TrapOnError = 1;
            } else if (!strcmp(argv[ii], "-comments")) {
                if (pass == 0)
                    Cg->options.Comments = 1;
            } else if (!strcmp(argv[ii], "-cdbg0")) {
                if (pass == 0)
                    Cg->DebugLevel = 0;
            } else if (!strcmp(argv[ii], "-cdbg1")) {
                if (pass == 0)
                    Cg->DebugLevel = 1;
            } else if (!strcmp(argv[ii], "-cdbg2")) {
                if (pass == 0)
                    Cg->DebugLevel = 2;
            } else if (!strcmp(argv[ii], "-cdbg3")) {
                if (pass == 0)
                    Cg->DebugLevel = 3;
#endif // defined(CGC_DEBUG_THE_COMPILER)
            } else if (!strcmp(argv[ii], "-o")) {
                ii++;
                if (pass == 0) {
                    if (ii < argc) {
                        Cg->options.outputFileName = argv[ii];
                    } else {
                        printf(OPENSL_TAG ": missing output file after \"-o\"\n");
                        return 0;
                    }
                }
            } else if (!strcmp(argv[ii], "-l")) {
                ii++;
                if (pass == 0) {
                    if (ii < argc) {
                        Cg->options.listFileName = argv[ii];
                    } else {
                        printf(OPENSL_TAG ": missing listing file after \"-l\"\n");
                        return 0;
                    }
                }
            } else if (!strcmp(argv[ii], "-help") || !strcmp(argv[ii], "-h")) {
                if (pass == 1)
                    PrintHelp();
            } else if (!strcmp(argv[ii], "-profile")) {
                ii++;
                if (pass == 0) {
                    if (ii < argc) {
                        if (Cg->options.profileString) {
                            printf(OPENSL_TAG ": multiple profiles\n");
                            return 0;
                        }
                        Cg->options.profileString = argv[ii];
                    } else {
                        printf(OPENSL_TAG ": missing profile name after \"-profile\"\n");
                        return 0;
                    }
                }
            } else if (!strcmp(argv[ii], "-entry")) {
                ii++;
                if (pass == 0) {
                    if (ii < argc) {
                        if (Cg->options.entryName) {
                            printf(OPENSL_TAG ": multiple entries\n");
                            return 0;
                        }
                        Cg->options.entryName = argv[ii];
                    } else {
                        printf(OPENSL_TAG ": missing entry name after \"-entry\"\n");
                        return 0;
                    }
                }
            } else if (argv[ii][1] == 'D') {
                if (pass == 1) {
                    if (!PredefineMacro(argv[ii]+2)) {
                        printf(OPENSL_TAG ": bad argument: \"%s\"\n", argv[ii]);
                        return 0;
                    }
                }
            } else {
                if (pass == 1) {
                    printf(OPENSL_TAG ": bad argument: \"%s\"\n", argv[ii]);
                    PrintHelp();
                    return 0;
                }
            }
        } else {
            if (pass == 1) {
                if (Cg->options.sourceFileName) {
                    printf(OPENSL_TAG ": multiple input files: \"%s\" \"%s\" ...\n",
                            Cg->options.sourceFileName, argv[ii]);
                    return 0;
                } else {
                    Cg->options.sourceFileName = argv[ii];
                }
            }
        }
    }
    if (pass == 0) {
        if (Cg->options.profileString == NULL) {
            Cg->options.profileString = "generic";
        }
        if (Cg->options.entryName == NULL)
            Cg->options.entryName = "main";
    }
    if (pass == 1) {
        if (!InitHAL(Cg->options.profileString, Cg->options.entryName)) {
            printf(OPENSL_TAG ": hal initialization failure.\n");
            return 0;
        }
    }
    return 1;
} // CommandLineArgs