[b87a5ed] | 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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[71f4e4f] | 7 | // main.cc -- |
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[b87a5ed] | 8 | // |
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[843054c2] | 9 | // Author : Richard C. Bilson |
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[b87a5ed] | 10 | // Created On : Fri May 15 23:12:02 2015 |
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[dd51906] | 11 | // Last Modified By : Peter A. Buhr |
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[b542bfb] | 12 | // Last Modified On : Mon Aug 29 17:34:39 2016 |
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| 13 | // Update Count : 426 |
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[b87a5ed] | 14 | // |
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| 15 | |
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[51b7345] | 16 | #include <iostream> |
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| 17 | #include <fstream> |
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[e6955b1] | 18 | #include <signal.h> // signal |
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| 19 | #include <getopt.h> // getopt |
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| 20 | #include <execinfo.h> // backtrace, backtrace_symbols_fd |
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| 21 | #include <cxxabi.h> // __cxa_demangle |
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| 22 | |
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| 23 | using namespace std; |
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| 24 | |
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[0da3e2c] | 25 | #include "Parser/lex.h" |
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| 26 | #include "Parser/parser.h" |
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| 27 | #include "Parser/TypedefTable.h" |
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[51b7345] | 28 | #include "GenPoly/Lvalue.h" |
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| 29 | #include "GenPoly/Specialize.h" |
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| 30 | #include "GenPoly/Box.h" |
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| 31 | #include "GenPoly/CopyParams.h" |
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[ea5daeb] | 32 | #include "GenPoly/InstantiateGeneric.h" |
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[51b7345] | 33 | #include "CodeGen/Generate.h" |
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| 34 | #include "CodeGen/FixNames.h" |
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| 35 | #include "ControlStruct/Mutate.h" |
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| 36 | #include "SymTab/Validate.h" |
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| 37 | #include "ResolvExpr/AlternativePrinter.h" |
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| 38 | #include "ResolvExpr/Resolver.h" |
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| 39 | #include "MakeLibCfa.h" |
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[a0fdbd5] | 40 | #include "InitTweak/GenInit.h" |
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[71f4e4f] | 41 | #include "InitTweak/FixInit.h" |
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[d3b7937] | 42 | #include "Common/UnimplementedError.h" |
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[51b7345] | 43 | #include "../config.h" |
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| 44 | |
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| 45 | using namespace std; |
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| 46 | |
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[e6955b1] | 47 | #define OPTPRINT(x) if ( errorp ) cerr << x << endl; |
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[81419b5] | 48 | |
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[0da3e2c] | 49 | |
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[8b7ee09] | 50 | LinkageSpec::Spec linkage = LinkageSpec::Cforall; |
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[0da3e2c] | 51 | TypedefTable typedefTable; |
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[cbaee0d] | 52 | DeclarationNode * parseTree = nullptr; // program parse tree |
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[81419b5] | 53 | |
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[926af74] | 54 | extern int yydebug; // set for -g flag (Grammar) |
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[b87a5ed] | 55 | bool |
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| 56 | astp = false, |
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[de62360d] | 57 | bresolvep = false, |
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[fea7ca7] | 58 | bboxp = false, |
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[ca1c11f] | 59 | ctorinitp = false, |
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[b87a5ed] | 60 | exprp = false, |
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| 61 | expraltp = false, |
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| 62 | libcfap = false, |
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[de62360d] | 63 | nopreludep = false, |
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[1ab4ce2] | 64 | noprotop = false, |
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[de62360d] | 65 | parsep = false, |
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[b87a5ed] | 66 | resolvep = false, // used in AlternativeFinder |
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| 67 | symtabp = false, |
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[d3b7937] | 68 | treep = false, |
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[b87a5ed] | 69 | validp = false, |
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[de62360d] | 70 | errorp = false, |
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| 71 | codegenp = false; |
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[b87a5ed] | 72 | |
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[926af74] | 73 | static void parse_cmdline( int argc, char *argv[], const char *& filename ); |
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[8b7ee09] | 74 | static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false ); |
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[e6955b1] | 75 | static void dump( list< Declaration * > & translationUnit, ostream & out = cout ); |
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| 76 | |
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[b542bfb] | 77 | void backtrace( int start ) { // skip first N stack frames |
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[e6955b1] | 78 | enum { Frames = 50 }; |
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| 79 | void * array[Frames]; |
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| 80 | int size = backtrace( array, Frames ); |
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[46f6134] | 81 | char ** messages = backtrace_symbols( array, size ); |
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[e6955b1] | 82 | |
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[b542bfb] | 83 | // skip last 2 stack frames after main |
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| 84 | for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) { |
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[e6955b1] | 85 | char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr; |
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| 86 | for ( char *p = messages[i]; *p; ++p ) { // find parantheses and +offset |
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| 87 | if (*p == '(') { |
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[46f6134] | 88 | mangled_name = p; |
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[e6955b1] | 89 | } else if (*p == '+') { |
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| 90 | offset_begin = p; |
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| 91 | } else if (*p == ')') { |
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| 92 | offset_end = p; |
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| 93 | break; |
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| 94 | } // if |
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| 95 | } // for |
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| 96 | |
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| 97 | // if line contains symbol, attempt to demangle |
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[b542bfb] | 98 | int frameNo = i - start; |
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[e6955b1] | 99 | if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) { |
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| 100 | *mangled_name++ = '\0'; |
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| 101 | *offset_begin++ = '\0'; |
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| 102 | *offset_end++ = '\0'; |
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| 103 | |
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[b542bfb] | 104 | int status, frameNo = i - start; |
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[e6955b1] | 105 | char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status ); |
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| 106 | if ( status == 0 ) { // demangling successful ? |
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[b542bfb] | 107 | cerr << "(" << frameNo << ") " << messages[i] << " : " |
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[e6955b1] | 108 | << real_name << "+" << offset_begin << offset_end << endl; |
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| 109 | |
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| 110 | } else { // otherwise, output mangled name |
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[b542bfb] | 111 | cerr << "(" << frameNo << ") " << messages[i] << " : " |
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[e6955b1] | 112 | << mangled_name << "+" << offset_begin << offset_end << endl; |
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| 113 | } // if |
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| 114 | free( real_name ); |
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| 115 | } else { // otherwise, print the whole line |
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[b542bfb] | 116 | cerr << "(" << frameNo << ") " << messages[i] << endl; |
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[e6955b1] | 117 | } // if |
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| 118 | } // for |
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[b542bfb] | 119 | |
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[e6955b1] | 120 | free( messages ); |
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[b542bfb] | 121 | } // backtrace |
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| 122 | |
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| 123 | void sigSegvBusHandler( int sig_num ) { |
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| 124 | cerr << "*CFA runtime error* program cfa-cpp terminated with " |
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| 125 | << (sig_num == SIGSEGV ? "segment fault" : "bus error") |
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| 126 | << " backtrace:" << endl; |
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| 127 | backtrace( 2 ); // skip first 2 stack frames |
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[e6955b1] | 128 | exit( EXIT_FAILURE ); |
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| 129 | } // sigSegvBusHandler |
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[0da3e2c] | 130 | |
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[b542bfb] | 131 | void sigAbortHandler( int sig_num ) { |
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| 132 | backtrace( 6 ); // skip first 6 stack frames |
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| 133 | signal( SIGABRT, SIG_DFL); // reset default signal handler |
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| 134 | raise( SIGABRT ); // reraise SIGABRT |
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| 135 | } // sigAbortHandler |
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| 136 | |
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| 137 | |
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[cbaee0d] | 138 | int main( int argc, char * argv[] ) { |
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[3b8e52c] | 139 | FILE * input; // use FILE rather than istream because yyin is FILE |
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[e6955b1] | 140 | ostream *output = & cout; |
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[926af74] | 141 | const char *filename = nullptr; |
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[e6955b1] | 142 | list< Declaration * > translationUnit; |
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| 143 | |
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| 144 | signal( SIGSEGV, sigSegvBusHandler ); |
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| 145 | signal( SIGBUS, sigSegvBusHandler ); |
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[b542bfb] | 146 | signal( SIGABRT, sigAbortHandler ); |
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[b87a5ed] | 147 | |
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[0da3e2c] | 148 | parse_cmdline( argc, argv, filename ); // process command-line arguments |
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[b87a5ed] | 149 | |
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| 150 | try { |
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[81419b5] | 151 | // choose to read the program from a file or stdin |
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[3b8e52c] | 152 | if ( optind < argc ) { // any commands after the flags ? => input file name |
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[b87a5ed] | 153 | input = fopen( argv[ optind ], "r" ); |
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[3b8e52c] | 154 | assertf( input, "cannot open %s\n", argv[ optind ] ); |
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[d029162] | 155 | // if running cfa-cpp directly, might forget to pass -F option (and really shouldn't have to) |
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[926af74] | 156 | if ( filename == nullptr ) filename = argv[ optind ]; |
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[37024fd] | 157 | // prelude filename comes in differently |
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| 158 | if ( libcfap ) filename = "prelude.cf"; |
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[b87a5ed] | 159 | optind += 1; |
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[3b8e52c] | 160 | } else { // no input file name |
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[b87a5ed] | 161 | input = stdin; |
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[2a7e29b] | 162 | // if running cfa-cpp directly, might forget to pass -F option. Since this takes from stdin, pass |
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| 163 | // a fake name along |
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[926af74] | 164 | if ( filename == nullptr ) filename = "stdin"; |
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[b87a5ed] | 165 | } // if |
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| 166 | |
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[3b8e52c] | 167 | if ( optind < argc ) { // any commands after the flags and input file ? => output file name |
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[b87a5ed] | 168 | output = new ofstream( argv[ optind ] ); |
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| 169 | } // if |
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[71f4e4f] | 170 | |
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[159c62e] | 171 | // read in the builtins, extras, and the prelude |
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[de62360d] | 172 | if ( ! nopreludep ) { // include gcc builtins |
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[faf8857] | 173 | // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here. |
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[d3b7937] | 174 | FILE * builtins = fopen( libcfap | treep ? "builtins.cf" : CFA_LIBDIR "/builtins.cf", "r" ); |
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[3b8e52c] | 175 | assertf( builtins, "cannot open builtins.cf\n" ); |
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[81419b5] | 176 | parse( builtins, LinkageSpec::Compiler ); |
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| 177 | |
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[159c62e] | 178 | // read the extra prelude in, if not generating the cfa library |
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| 179 | FILE * extras = fopen( libcfap | treep ? "extras.cf" : CFA_LIBDIR "/extras.cf", "r" ); |
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[3b8e52c] | 180 | assertf( extras, "cannot open extras.cf\n" ); |
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[159c62e] | 181 | parse( extras, LinkageSpec::C ); |
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| 182 | |
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[81419b5] | 183 | if ( ! libcfap ) { |
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[faf8857] | 184 | // read the prelude in, if not generating the cfa library |
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[d3b7937] | 185 | FILE * prelude = fopen( treep ? "prelude.cf" : CFA_LIBDIR "/prelude.cf", "r" ); |
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[3b8e52c] | 186 | assertf( prelude, "cannot open prelude.cf\n" ); |
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[35304009] | 187 | parse( prelude, LinkageSpec::Intrinsic ); |
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[b87a5ed] | 188 | } // if |
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| 189 | } // if |
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[81419b5] | 190 | |
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[926af74] | 191 | parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug ); |
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[71f4e4f] | 192 | |
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[b87a5ed] | 193 | if ( parsep ) { |
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[e6955b1] | 194 | parseTree->printList( cout ); |
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[0da3e2c] | 195 | delete parseTree; |
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[b87a5ed] | 196 | return 0; |
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| 197 | } // if |
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| 198 | |
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[0da3e2c] | 199 | buildList( parseTree, translationUnit ); |
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| 200 | delete parseTree; |
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[cbaee0d] | 201 | parseTree = nullptr; |
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[b87a5ed] | 202 | |
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| 203 | if ( astp ) { |
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[1ab4ce2] | 204 | dump( translationUnit ); |
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[b87a5ed] | 205 | return 0; |
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| 206 | } // if |
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| 207 | |
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[839ccbb] | 208 | // add the assignment statement after the initialization of a type parameter |
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[81419b5] | 209 | OPTPRINT( "validate" ) |
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| 210 | SymTab::validate( translationUnit, symtabp ); |
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| 211 | if ( symtabp ) { |
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[46f6134] | 212 | deleteAll( translationUnit ); |
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[b87a5ed] | 213 | return 0; |
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| 214 | } // if |
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| 215 | |
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[81419b5] | 216 | if ( expraltp ) { |
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[e6955b1] | 217 | ResolvExpr::AlternativePrinter printer( cout ); |
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[81419b5] | 218 | acceptAll( translationUnit, printer ); |
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[b87a5ed] | 219 | return 0; |
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| 220 | } // if |
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| 221 | |
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| 222 | if ( validp ) { |
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[1ab4ce2] | 223 | dump( translationUnit ); |
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[b87a5ed] | 224 | return 0; |
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| 225 | } // if |
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| 226 | |
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[81419b5] | 227 | OPTPRINT( "mutate" ) |
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| 228 | ControlStruct::mutate( translationUnit ); |
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[71f4e4f] | 229 | OPTPRINT( "fixNames" ) |
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[81419b5] | 230 | CodeGen::fixNames( translationUnit ); |
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[f1e012b] | 231 | OPTPRINT( "tweakInit" ) |
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[a0fdbd5] | 232 | InitTweak::genInit( translationUnit ); |
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[b87a5ed] | 233 | |
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[81419b5] | 234 | if ( libcfap ) { |
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| 235 | // generate the bodies of cfa library functions |
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| 236 | LibCfa::makeLibCfa( translationUnit ); |
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[b87a5ed] | 237 | } // if |
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| 238 | |
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[de62360d] | 239 | if ( bresolvep ) { |
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[1ab4ce2] | 240 | dump( translationUnit ); |
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[de62360d] | 241 | return 0; |
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| 242 | } // if |
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| 243 | |
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[81419b5] | 244 | OPTPRINT( "resolve" ) |
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[b87a5ed] | 245 | ResolvExpr::resolve( translationUnit ); |
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[81419b5] | 246 | if ( exprp ) { |
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[1ab4ce2] | 247 | dump( translationUnit ); |
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[ca1c11f] | 248 | return 0; |
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[926af74] | 249 | } // if |
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[81419b5] | 250 | |
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[71f4e4f] | 251 | // fix ObjectDecl - replaces ConstructorInit nodes |
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[6cf27a07] | 252 | OPTPRINT( "fixInit" ) |
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| 253 | InitTweak::fix( translationUnit, filename, libcfap || treep ); |
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[ca1c11f] | 254 | if ( ctorinitp ) { |
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| 255 | dump ( translationUnit ); |
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| 256 | return 0; |
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[926af74] | 257 | } // if |
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[71f4e4f] | 258 | |
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[ea5daeb] | 259 | OPTPRINT("instantiateGenerics") |
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| 260 | GenPoly::instantiateGeneric( translationUnit ); |
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[81419b5] | 261 | OPTPRINT( "copyParams" ); |
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[b87a5ed] | 262 | GenPoly::copyParams( translationUnit ); |
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[81419b5] | 263 | OPTPRINT( "convertSpecializations" ) |
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[698664b3] | 264 | GenPoly::convertSpecializations( translationUnit ); |
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[81419b5] | 265 | OPTPRINT( "convertLvalue" ) |
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[b87a5ed] | 266 | GenPoly::convertLvalue( translationUnit ); |
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[fea7ca7] | 267 | |
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| 268 | if ( bboxp ) { |
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| 269 | dump( translationUnit ); |
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| 270 | return 0; |
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[926af74] | 271 | } // if |
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[81419b5] | 272 | OPTPRINT( "box" ) |
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[b87a5ed] | 273 | GenPoly::box( translationUnit ); |
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[81419b5] | 274 | |
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[2871210] | 275 | // print tree right before code generation |
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[81419b5] | 276 | if ( codegenp ) { |
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[1ab4ce2] | 277 | dump( translationUnit ); |
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[81419b5] | 278 | return 0; |
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| 279 | } // if |
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[b87a5ed] | 280 | |
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[1ab4ce2] | 281 | CodeGen::generate( translationUnit, *output, ! noprotop ); |
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[b87a5ed] | 282 | |
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[e6955b1] | 283 | if ( output != &cout ) { |
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[b87a5ed] | 284 | delete output; |
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| 285 | } // if |
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| 286 | } catch ( SemanticError &e ) { |
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| 287 | if ( errorp ) { |
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[e6955b1] | 288 | cerr << "---AST at error:---" << endl; |
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| 289 | dump( translationUnit, cerr ); |
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| 290 | cerr << endl << "---End of AST, begin error message:---\n" << endl; |
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[926af74] | 291 | } // if |
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[e6955b1] | 292 | e.print( cerr ); |
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| 293 | if ( output != &cout ) { |
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[b87a5ed] | 294 | delete output; |
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| 295 | } // if |
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| 296 | return 1; |
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| 297 | } catch ( UnimplementedError &e ) { |
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[e6955b1] | 298 | cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl; |
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| 299 | if ( output != &cout ) { |
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[b87a5ed] | 300 | delete output; |
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| 301 | } // if |
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| 302 | return 1; |
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| 303 | } catch ( CompilerError &e ) { |
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[e6955b1] | 304 | cerr << "Compiler Error: " << e.get_what() << endl; |
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| 305 | cerr << "(please report bugs to " << endl; |
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| 306 | if ( output != &cout ) { |
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[b87a5ed] | 307 | delete output; |
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| 308 | } // if |
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| 309 | return 1; |
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| 310 | } // try |
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| 311 | |
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[39786813] | 312 | deleteAll( translationUnit ); |
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[b87a5ed] | 313 | return 0; |
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[d9a0e76] | 314 | } // main |
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[51b7345] | 315 | |
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[cbaee0d] | 316 | void parse_cmdline( int argc, char * argv[], const char *& filename ) { |
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[0da3e2c] | 317 | enum { Ast, Bbox, Bresolver, CtorInitFix, Expr, ExprAlt, Grammar, LibCFA, Nopreamble, Parse, Prototypes, Resolver, Symbol, Tree, Validate, }; |
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| 318 | |
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| 319 | static struct option long_opts[] = { |
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| 320 | { "ast", no_argument, 0, Ast }, |
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| 321 | { "before-box", no_argument, 0, Bbox }, |
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| 322 | { "before-resolver", no_argument, 0, Bresolver }, |
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| 323 | { "ctorinitfix", no_argument, 0, CtorInitFix }, |
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| 324 | { "expr", no_argument, 0, Expr }, |
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| 325 | { "expralt", no_argument, 0, ExprAlt }, |
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| 326 | { "grammar", no_argument, 0, Grammar }, |
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| 327 | { "libcfa", no_argument, 0, LibCFA }, |
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| 328 | { "no-preamble", no_argument, 0, Nopreamble }, |
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| 329 | { "parse", no_argument, 0, Parse }, |
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| 330 | { "no-prototypes", no_argument, 0, Prototypes }, |
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| 331 | { "resolver", no_argument, 0, Resolver }, |
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| 332 | { "symbol", no_argument, 0, Symbol }, |
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| 333 | { "tree", no_argument, 0, Tree }, |
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| 334 | { "validate", no_argument, 0, Validate }, |
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| 335 | { 0, 0, 0, 0 } |
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| 336 | }; // long_opts |
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| 337 | int long_index; |
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| 338 | |
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| 339 | opterr = 0; // (global) prevent getopt from printing error messages |
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| 340 | |
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| 341 | int c; |
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| 342 | while ( (c = getopt_long( argc, argv, "abBcefglnpqrstvyzD:F:", long_opts, &long_index )) != -1 ) { |
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| 343 | switch ( c ) { |
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| 344 | case Ast: |
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| 345 | case 'a': // dump AST |
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| 346 | astp = true; |
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| 347 | break; |
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| 348 | case Bresolver: |
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| 349 | case 'b': // print before resolver steps |
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| 350 | bresolvep = true; |
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| 351 | break; |
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| 352 | case 'B': // print before resolver steps |
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| 353 | bboxp = true; |
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| 354 | break; |
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| 355 | case CtorInitFix: |
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| 356 | case 'c': |
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| 357 | ctorinitp = true; |
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| 358 | break; |
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| 359 | case Expr: |
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| 360 | case 'e': // dump AST after expression analysis |
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| 361 | exprp = true; |
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| 362 | break; |
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| 363 | case ExprAlt: |
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| 364 | case 'f': // print alternatives for expressions |
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| 365 | expraltp = true; |
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| 366 | break; |
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| 367 | case Grammar: |
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| 368 | case 'g': // bison debugging info (grammar rules) |
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[926af74] | 369 | yydebug = true; |
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[0da3e2c] | 370 | break; |
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| 371 | case LibCFA: |
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| 372 | case 'l': // generate libcfa.c |
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| 373 | libcfap = true; |
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| 374 | break; |
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| 375 | case Nopreamble: |
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| 376 | case 'n': // do not read preamble |
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| 377 | nopreludep = true; |
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| 378 | break; |
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| 379 | case Prototypes: |
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| 380 | case 'p': // generate prototypes for preamble functions |
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| 381 | noprotop = true; |
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| 382 | break; |
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| 383 | case Parse: |
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| 384 | case 'q': // dump parse tree |
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| 385 | parsep = true; |
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| 386 | break; |
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| 387 | case Resolver: |
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| 388 | case 'r': // print resolver steps |
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| 389 | resolvep = true; |
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| 390 | break; |
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| 391 | case Symbol: |
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| 392 | case 's': // print symbol table events |
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| 393 | symtabp = true; |
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| 394 | break; |
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| 395 | case Tree: |
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| 396 | case 't': // build in tree |
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| 397 | treep = true; |
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| 398 | break; |
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| 399 | case 'v': // dump AST after decl validation pass |
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| 400 | validp = true; |
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| 401 | break; |
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| 402 | case 'y': |
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| 403 | errorp = true; |
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| 404 | break; |
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| 405 | case 'z': |
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| 406 | codegenp = true; |
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| 407 | break; |
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| 408 | case 'D': // ignore -Dxxx |
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| 409 | break; |
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| 410 | case 'F': // source file-name without suffix |
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| 411 | filename = optarg; |
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| 412 | break; |
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| 413 | case '?': |
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[3b8e52c] | 414 | assertf( false, "Unknown option: '%c'\n", (char)optopt ); |
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[0da3e2c] | 415 | default: |
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| 416 | abort(); |
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| 417 | } // switch |
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| 418 | } // while |
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| 419 | } // parse_cmdline |
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| 420 | |
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[8b7ee09] | 421 | static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) { |
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[0da3e2c] | 422 | extern int yyparse( void ); |
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[cbaee0d] | 423 | extern FILE * yyin; |
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[0da3e2c] | 424 | extern int yylineno; |
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| 425 | |
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[8b7ee09] | 426 | ::linkage = linkage; // set globals |
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[0da3e2c] | 427 | yyin = input; |
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| 428 | yylineno = 1; |
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| 429 | typedefTable.enterScope(); |
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| 430 | int parseStatus = yyparse(); |
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[81419b5] | 431 | |
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| 432 | fclose( input ); |
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[0da3e2c] | 433 | if ( shouldExit || parseStatus != 0 ) { |
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| 434 | exit( parseStatus ); |
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[81419b5] | 435 | } // if |
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[0da3e2c] | 436 | } // parse |
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[81419b5] | 437 | |
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[1ab4ce2] | 438 | static bool notPrelude( Declaration * decl ) { |
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| 439 | return ! LinkageSpec::isBuiltin( decl->get_linkage() ); |
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[0da3e2c] | 440 | } // notPrelude |
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[1ab4ce2] | 441 | |
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[e6955b1] | 442 | static void dump( list< Declaration * > & translationUnit, ostream & out ) { |
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| 443 | list< Declaration * > decls; |
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[926af74] | 444 | |
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[1ab4ce2] | 445 | if ( noprotop ) { |
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[e6955b1] | 446 | filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude ); |
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[1ab4ce2] | 447 | } else { |
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| 448 | decls = translationUnit; |
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[926af74] | 449 | } // if |
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[1ab4ce2] | 450 | |
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[f77f12e2] | 451 | printAll( decls, out ); |
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[7f5566b] | 452 | deleteAll( translationUnit ); |
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[0da3e2c] | 453 | } // dump |
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[1ab4ce2] | 454 | |
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[51b7345] | 455 | // Local Variables: // |
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[b87a5ed] | 456 | // tab-width: 4 // |
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| 457 | // mode: c++ // |
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| 458 | // compile-command: "make install" // |
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[51b7345] | 459 | // End: // |
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