| 1 | //
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
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| 3 | //
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| 4 | // The contents of this file are covered under the licence agreement in the
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| 5 | // file "LICENCE" distributed with Cforall.
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| 6 | //
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| 7 | // main.cc --
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| 8 | //
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| 9 | // Author : Richard C. Bilson
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| 10 | // Created On : Fri May 15 23:12:02 2015
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| 11 | // Last Modified By : Peter A. Buhr
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| 12 | // Last Modified On : Thu Aug 18 16:33:49 2016
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| 13 | // Update Count : 347
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| 14 | //
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| 15 |
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| 16 | #include <iostream>
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| 17 | #include <fstream>
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| 18 | #include <getopt.h>
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| 19 | #include "Parser/lex.h"
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| 20 | #include "Parser/parser.h"
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| 21 | #include "Parser/TypedefTable.h"
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| 22 | #include "GenPoly/Lvalue.h"
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| 23 | #include "GenPoly/Specialize.h"
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| 24 | #include "GenPoly/Box.h"
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| 25 | #include "GenPoly/CopyParams.h"
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| 26 | #include "GenPoly/InstantiateGeneric.h"
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| 27 | #include "CodeGen/Generate.h"
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| 28 | #include "CodeGen/FixNames.h"
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| 29 | #include "ControlStruct/Mutate.h"
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| 30 | #include "SymTab/Validate.h"
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| 31 | #include "ResolvExpr/AlternativePrinter.h"
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| 32 | #include "ResolvExpr/Resolver.h"
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| 33 | #include "MakeLibCfa.h"
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| 34 | #include "InitTweak/GenInit.h"
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| 35 | #include "InitTweak/FixInit.h"
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| 36 | #include "Common/UnimplementedError.h"
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| 37 |
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| 38 | #include "../config.h"
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| 39 |
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| 40 | using namespace std;
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| 41 |
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| 42 | #define OPTPRINT(x) if ( errorp ) std::cerr << x << std::endl;
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| 43 |
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| 44 |
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| 45 | LinkageSpec::Type linkage = LinkageSpec::Cforall;
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| 46 | TypedefTable typedefTable;
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| 47 | DeclarationNode * parseTree = nullptr; // program parse tree
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| 48 |
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| 49 | extern int yydebug; // set for -g flag (Grammar)
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| 50 | bool
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| 51 | astp = false,
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| 52 | bresolvep = false,
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| 53 | bboxp = false,
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| 54 | ctorinitp = false,
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| 55 | exprp = false,
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| 56 | expraltp = false,
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| 57 | libcfap = false,
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| 58 | nopreludep = false,
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| 59 | noprotop = false,
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| 60 | parsep = false,
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| 61 | resolvep = false, // used in AlternativeFinder
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| 62 | symtabp = false,
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| 63 | treep = false,
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| 64 | validp = false,
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| 65 | errorp = false,
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| 66 | codegenp = false;
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| 67 |
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| 68 | static void parse_cmdline( int argc, char *argv[], const char *& filename );
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| 69 | static void parse( FILE * input, LinkageSpec::Type t, bool shouldExit = false );
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| 70 | static void dump( std::list< Declaration * > & translationUnit, std::ostream & out = std::cout );
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| 71 |
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| 72 | int main( int argc, char * argv[] ) {
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| 73 | FILE * input; // use FILE rather than istream because yyin is FILE
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| 74 | std::ostream *output = & std::cout;
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| 75 | std::list< Declaration * > translationUnit;
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| 76 | const char *filename = nullptr;
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| 77 |
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| 78 | parse_cmdline( argc, argv, filename ); // process command-line arguments
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| 79 |
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| 80 | try {
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| 81 | // choose to read the program from a file or stdin
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| 82 | if ( optind < argc ) { // any commands after the flags ? => input file name
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| 83 | input = fopen( argv[ optind ], "r" );
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| 84 | assertf( input, "cannot open %s\n", argv[ optind ] );
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| 85 | // if running cfa-cpp directly, might forget to pass -F option (and really shouldn't have to)
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| 86 | if ( filename == nullptr ) filename = argv[ optind ];
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| 87 | // prelude filename comes in differently
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| 88 | if ( libcfap ) filename = "prelude.cf";
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| 89 | optind += 1;
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| 90 | } else { // no input file name
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| 91 | input = stdin;
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| 92 | // if running cfa-cpp directly, might forget to pass -F option. Since this takes from stdin, pass
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| 93 | // a fake name along
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| 94 | if ( filename == nullptr ) filename = "stdin";
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| 95 | } // if
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| 96 |
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| 97 | if ( optind < argc ) { // any commands after the flags and input file ? => output file name
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| 98 | output = new ofstream( argv[ optind ] );
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| 99 | } // if
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| 100 |
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| 101 | // read in the builtins, extras, and the prelude
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| 102 | if ( ! nopreludep ) { // include gcc builtins
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| 103 | // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
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| 104 | FILE * builtins = fopen( libcfap | treep ? "builtins.cf" : CFA_LIBDIR "/builtins.cf", "r" );
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| 105 | assertf( builtins, "cannot open builtins.cf\n" );
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| 106 | parse( builtins, LinkageSpec::Compiler );
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| 107 |
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| 108 | // read the extra prelude in, if not generating the cfa library
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| 109 | FILE * extras = fopen( libcfap | treep ? "extras.cf" : CFA_LIBDIR "/extras.cf", "r" );
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| 110 | assertf( extras, "cannot open extras.cf\n" );
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| 111 | parse( extras, LinkageSpec::C );
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| 112 |
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| 113 | if ( ! libcfap ) {
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| 114 | // read the prelude in, if not generating the cfa library
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| 115 | FILE * prelude = fopen( treep ? "prelude.cf" : CFA_LIBDIR "/prelude.cf", "r" );
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| 116 | assertf( prelude, "cannot open prelude.cf\n" );
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| 117 | parse( prelude, LinkageSpec::Intrinsic );
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| 118 | } // if
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| 119 | } // if
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| 120 |
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| 121 | parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
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| 122 |
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| 123 | if ( parsep ) {
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| 124 | parseTree->printList( std::cout );
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| 125 | delete parseTree;
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| 126 | return 0;
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| 127 | } // if
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| 128 |
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| 129 | buildList( parseTree, translationUnit );
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| 130 | delete parseTree;
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| 131 | parseTree = nullptr;
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| 132 |
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| 133 | if ( astp ) {
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| 134 | dump( translationUnit );
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| 135 | return 0;
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| 136 | } // if
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| 137 |
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| 138 | // add the assignment statement after the initialization of a type parameter
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| 139 | OPTPRINT( "validate" )
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| 140 | SymTab::validate( translationUnit, symtabp );
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| 141 | if ( symtabp ) {
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| 142 | return 0;
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| 143 | } // if
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| 144 |
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| 145 | if ( expraltp ) {
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| 146 | ResolvExpr::AlternativePrinter printer( std::cout );
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| 147 | acceptAll( translationUnit, printer );
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| 148 | return 0;
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| 149 | } // if
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| 150 |
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| 151 | if ( validp ) {
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| 152 | dump( translationUnit );
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| 153 | return 0;
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| 154 | } // if
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| 155 |
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| 156 | OPTPRINT( "mutate" )
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| 157 | ControlStruct::mutate( translationUnit );
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| 158 | OPTPRINT( "fixNames" )
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| 159 | CodeGen::fixNames( translationUnit );
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| 160 | OPTPRINT( "tweakInit" )
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| 161 | InitTweak::genInit( translationUnit );
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| 162 |
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| 163 | if ( libcfap ) {
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| 164 | // generate the bodies of cfa library functions
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| 165 | LibCfa::makeLibCfa( translationUnit );
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| 166 | } // if
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| 167 |
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| 168 | if ( bresolvep ) {
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| 169 | dump( translationUnit );
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| 170 | return 0;
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| 171 | } // if
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| 172 |
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| 173 | OPTPRINT( "resolve" )
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| 174 | ResolvExpr::resolve( translationUnit );
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| 175 | if ( exprp ) {
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| 176 | dump( translationUnit );
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| 177 | return 0;
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| 178 | } // if
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| 179 |
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| 180 | // fix ObjectDecl - replaces ConstructorInit nodes
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| 181 | OPTPRINT( "fixInit" )
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| 182 | InitTweak::fix( translationUnit, filename, libcfap || treep );
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| 183 | if ( ctorinitp ) {
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| 184 | dump ( translationUnit );
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| 185 | return 0;
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| 186 | } // if
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| 187 |
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| 188 | OPTPRINT("instantiateGenerics")
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| 189 | GenPoly::instantiateGeneric( translationUnit );
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| 190 | OPTPRINT( "copyParams" );
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| 191 | GenPoly::copyParams( translationUnit );
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| 192 | OPTPRINT( "convertSpecializations" )
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| 193 | GenPoly::convertSpecializations( translationUnit );
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| 194 | OPTPRINT( "convertLvalue" )
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| 195 | GenPoly::convertLvalue( translationUnit );
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| 196 |
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| 197 | if ( bboxp ) {
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| 198 | dump( translationUnit );
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| 199 | return 0;
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| 200 | } // if
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| 201 | OPTPRINT( "box" )
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| 202 | GenPoly::box( translationUnit );
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| 203 |
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| 204 | // print tree right before code generation
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| 205 | if ( codegenp ) {
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| 206 | dump( translationUnit );
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| 207 | return 0;
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| 208 | } // if
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| 209 |
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| 210 | CodeGen::generate( translationUnit, *output, ! noprotop );
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| 211 |
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| 212 | if ( output != &std::cout ) {
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| 213 | delete output;
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| 214 | } // if
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| 215 | } catch ( SemanticError &e ) {
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| 216 | if ( errorp ) {
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| 217 | std::cerr << "---AST at error:---" << std::endl;
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| 218 | dump( translationUnit, std::cerr );
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| 219 | std::cerr << std::endl << "---End of AST, begin error message:---\n" << std::endl;
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| 220 | } // if
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| 221 | e.print( std::cerr );
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| 222 | if ( output != &std::cout ) {
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| 223 | delete output;
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| 224 | } // if
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| 225 | return 1;
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| 226 | } catch ( UnimplementedError &e ) {
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| 227 | std::cout << "Sorry, " << e.get_what() << " is not currently implemented" << std::endl;
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| 228 | if ( output != &std::cout ) {
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| 229 | delete output;
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| 230 | } // if
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| 231 | return 1;
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| 232 | } catch ( CompilerError &e ) {
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| 233 | std::cerr << "Compiler Error: " << e.get_what() << std::endl;
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| 234 | std::cerr << "(please report bugs to " << std::endl;
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| 235 | if ( output != &std::cout ) {
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| 236 | delete output;
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| 237 | } // if
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| 238 | return 1;
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| 239 | } // try
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| 240 |
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| 241 | deleteAll( translationUnit );
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| 242 | return 0;
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| 243 | } // main
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| 244 |
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| 245 | void parse_cmdline( int argc, char * argv[], const char *& filename ) {
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| 246 | enum { Ast, Bbox, Bresolver, CtorInitFix, Expr, ExprAlt, Grammar, LibCFA, Nopreamble, Parse, Prototypes, Resolver, Symbol, Tree, Validate, };
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| 247 |
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| 248 | static struct option long_opts[] = {
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| 249 | { "ast", no_argument, 0, Ast },
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| 250 | { "before-box", no_argument, 0, Bbox },
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| 251 | { "before-resolver", no_argument, 0, Bresolver },
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| 252 | { "ctorinitfix", no_argument, 0, CtorInitFix },
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| 253 | { "expr", no_argument, 0, Expr },
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| 254 | { "expralt", no_argument, 0, ExprAlt },
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| 255 | { "grammar", no_argument, 0, Grammar },
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| 256 | { "libcfa", no_argument, 0, LibCFA },
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| 257 | { "no-preamble", no_argument, 0, Nopreamble },
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| 258 | { "parse", no_argument, 0, Parse },
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| 259 | { "no-prototypes", no_argument, 0, Prototypes },
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| 260 | { "resolver", no_argument, 0, Resolver },
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| 261 | { "symbol", no_argument, 0, Symbol },
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| 262 | { "tree", no_argument, 0, Tree },
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| 263 | { "validate", no_argument, 0, Validate },
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| 264 | { 0, 0, 0, 0 }
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| 265 | }; // long_opts
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| 266 | int long_index;
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| 267 |
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| 268 | opterr = 0; // (global) prevent getopt from printing error messages
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| 269 |
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| 270 | int c;
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| 271 | while ( (c = getopt_long( argc, argv, "abBcefglnpqrstvyzD:F:", long_opts, &long_index )) != -1 ) {
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| 272 | switch ( c ) {
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| 273 | case Ast:
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| 274 | case 'a': // dump AST
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| 275 | astp = true;
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| 276 | break;
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| 277 | case Bresolver:
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| 278 | case 'b': // print before resolver steps
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| 279 | bresolvep = true;
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| 280 | break;
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| 281 | case 'B': // print before resolver steps
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| 282 | bboxp = true;
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| 283 | break;
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| 284 | case CtorInitFix:
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| 285 | case 'c':
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| 286 | ctorinitp = true;
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| 287 | break;
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| 288 | case Expr:
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| 289 | case 'e': // dump AST after expression analysis
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| 290 | exprp = true;
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| 291 | break;
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| 292 | case ExprAlt:
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| 293 | case 'f': // print alternatives for expressions
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| 294 | expraltp = true;
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| 295 | break;
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| 296 | case Grammar:
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| 297 | case 'g': // bison debugging info (grammar rules)
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| 298 | yydebug = true;
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| 299 | break;
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| 300 | case LibCFA:
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| 301 | case 'l': // generate libcfa.c
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| 302 | libcfap = true;
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| 303 | break;
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| 304 | case Nopreamble:
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| 305 | case 'n': // do not read preamble
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| 306 | nopreludep = true;
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| 307 | break;
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| 308 | case Prototypes:
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| 309 | case 'p': // generate prototypes for preamble functions
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| 310 | noprotop = true;
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| 311 | break;
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| 312 | case Parse:
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| 313 | case 'q': // dump parse tree
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| 314 | parsep = true;
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| 315 | break;
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| 316 | case Resolver:
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| 317 | case 'r': // print resolver steps
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| 318 | resolvep = true;
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| 319 | break;
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| 320 | case Symbol:
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| 321 | case 's': // print symbol table events
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| 322 | symtabp = true;
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| 323 | break;
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| 324 | case Tree:
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| 325 | case 't': // build in tree
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| 326 | treep = true;
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| 327 | break;
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| 328 | case 'v': // dump AST after decl validation pass
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| 329 | validp = true;
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| 330 | break;
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| 331 | case 'y':
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| 332 | errorp = true;
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| 333 | break;
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| 334 | case 'z':
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| 335 | codegenp = true;
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| 336 | break;
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| 337 | case 'D': // ignore -Dxxx
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| 338 | break;
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| 339 | case 'F': // source file-name without suffix
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| 340 | filename = optarg;
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| 341 | break;
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| 342 | case '?':
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| 343 | assertf( false, "Unknown option: '%c'\n", (char)optopt );
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| 344 | default:
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| 345 | abort();
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| 346 | } // switch
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| 347 | } // while
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| 348 | } // parse_cmdline
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| 349 |
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| 350 | static void parse( FILE * input, LinkageSpec::Type link, bool shouldExit ) {
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| 351 | extern int yyparse( void );
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| 352 | extern FILE * yyin;
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| 353 | extern int yylineno;
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| 354 |
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| 355 | linkage = link; // set globals
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| 356 | yyin = input;
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| 357 | yylineno = 1;
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| 358 | typedefTable.enterScope();
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| 359 | int parseStatus = yyparse();
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| 360 |
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| 361 | fclose( input );
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| 362 | if ( shouldExit || parseStatus != 0 ) {
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| 363 | exit( parseStatus );
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| 364 | } // if
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| 365 | } // parse
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| 366 |
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| 367 | static bool notPrelude( Declaration * decl ) {
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| 368 | return ! LinkageSpec::isBuiltin( decl->get_linkage() );
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| 369 | } // notPrelude
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| 370 |
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| 371 | static void dump( std::list< Declaration * > & translationUnit, std::ostream & out ) {
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| 372 | std::list< Declaration * > decls;
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| 373 |
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| 374 | if ( noprotop ) {
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| 375 | filter( translationUnit.begin(), translationUnit.end(), std::back_inserter( decls ), notPrelude );
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| 376 | } else {
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| 377 | decls = translationUnit;
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| 378 | } // if
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| 379 |
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| 380 | printAll( decls, out );
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| 381 | deleteAll( translationUnit );
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| 382 | } // dump
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| 383 |
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| 384 | // Local Variables: //
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| 385 | // tab-width: 4 //
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| 386 | // mode: c++ //
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| 387 | // compile-command: "make install" //
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| 388 | // End: //
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