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Diffstat (limited to 'utils/TableGen/OptParserEmitter.cpp')
| -rw-r--r-- | utils/TableGen/OptParserEmitter.cpp | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/utils/TableGen/OptParserEmitter.cpp b/utils/TableGen/OptParserEmitter.cpp deleted file mode 100644 index dea22d3886..0000000000 --- a/utils/TableGen/OptParserEmitter.cpp +++ /dev/null @@ -1,194 +0,0 @@ -//===- OptParserEmitter.cpp - Table Driven Command Line Parsing -----------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// - -#include "OptParserEmitter.h" -#include "llvm/TableGen/Record.h" -#include "llvm/ADT/STLExtras.h" -using namespace llvm; - -static int StrCmpOptionName(const char *A, const char *B) { - char a = *A, b = *B; - while (a == b) { - if (a == '\0') - return 0; - - a = *++A; - b = *++B; - } - - if (a == '\0') // A is a prefix of B. - return 1; - if (b == '\0') // B is a prefix of A. - return -1; - - // Otherwise lexicographic. - return (a < b) ? -1 : 1; -} - -static int CompareOptionRecords(const void *Av, const void *Bv) { - const Record *A = *(Record**) Av; - const Record *B = *(Record**) Bv; - - // Sentinel options precede all others and are only ordered by precedence. - bool ASent = A->getValueAsDef("Kind")->getValueAsBit("Sentinel"); - bool BSent = B->getValueAsDef("Kind")->getValueAsBit("Sentinel"); - if (ASent != BSent) - return ASent ? -1 : 1; - - // Compare options by name, unless they are sentinels. - if (!ASent) - if (int Cmp = StrCmpOptionName(A->getValueAsString("Name").c_str(), - B->getValueAsString("Name").c_str())) - return Cmp; - - // Then by the kind precedence; - int APrec = A->getValueAsDef("Kind")->getValueAsInt("Precedence"); - int BPrec = B->getValueAsDef("Kind")->getValueAsInt("Precedence"); - assert(APrec != BPrec && "Options are equivalent!"); - return APrec < BPrec ? -1 : 1; -} - -static const std::string getOptionName(const Record &R) { - // Use the record name unless EnumName is defined. - if (dynamic_cast<UnsetInit*>(R.getValueInit("EnumName"))) - return R.getName(); - - return R.getValueAsString("EnumName"); -} - -static raw_ostream &write_cstring(raw_ostream &OS, llvm::StringRef Str) { - OS << '"'; - OS.write_escaped(Str); - OS << '"'; - return OS; -} - -void OptParserEmitter::run(raw_ostream &OS) { - // Get the option groups and options. - const std::vector<Record*> &Groups = - Records.getAllDerivedDefinitions("OptionGroup"); - std::vector<Record*> Opts = Records.getAllDerivedDefinitions("Option"); - - if (GenDefs) - EmitSourceFileHeader("Option Parsing Definitions", OS); - else - EmitSourceFileHeader("Option Parsing Table", OS); - - array_pod_sort(Opts.begin(), Opts.end(), CompareOptionRecords); - if (GenDefs) { - OS << "#ifndef OPTION\n"; - OS << "#error \"Define OPTION prior to including this file!\"\n"; - OS << "#endif\n\n"; - - OS << "/////////\n"; - OS << "// Groups\n\n"; - for (unsigned i = 0, e = Groups.size(); i != e; ++i) { - const Record &R = *Groups[i]; - - // Start a single option entry. - OS << "OPTION("; - - // The option string. - OS << '"' << R.getValueAsString("Name") << '"'; - - // The option identifier name. - OS << ", "<< getOptionName(R); - - // The option kind. - OS << ", Group"; - - // The containing option group (if any). - OS << ", "; - if (const DefInit *DI = dynamic_cast<DefInit*>(R.getValueInit("Group"))) - OS << getOptionName(*DI->getDef()); - else - OS << "INVALID"; - - // The other option arguments (unused for groups). - OS << ", INVALID, 0, 0"; - - // The option help text. - if (!dynamic_cast<UnsetInit*>(R.getValueInit("HelpText"))) { - OS << ",\n"; - OS << " "; - write_cstring(OS, R.getValueAsString("HelpText")); - } else - OS << ", 0"; - - // The option meta-variable name (unused). - OS << ", 0)\n"; - } - OS << "\n"; - - OS << "//////////\n"; - OS << "// Options\n\n"; - for (unsigned i = 0, e = Opts.size(); i != e; ++i) { - const Record &R = *Opts[i]; - - // Start a single option entry. - OS << "OPTION("; - - // The option string. - write_cstring(OS, R.getValueAsString("Name")); - - // The option identifier name. - OS << ", "<< getOptionName(R); - - // The option kind. - OS << ", " << R.getValueAsDef("Kind")->getValueAsString("Name"); - - // The containing option group (if any). - OS << ", "; - if (const DefInit *DI = dynamic_cast<DefInit*>(R.getValueInit("Group"))) - OS << getOptionName(*DI->getDef()); - else - OS << "INVALID"; - - // The option alias (if any). - OS << ", "; - if (const DefInit *DI = dynamic_cast<DefInit*>(R.getValueInit("Alias"))) - OS << getOptionName(*DI->getDef()); - else - OS << "INVALID"; - - // The option flags. - const ListInit *LI = R.getValueAsListInit("Flags"); - if (LI->empty()) { - OS << ", 0"; - } else { - OS << ", "; - for (unsigned i = 0, e = LI->size(); i != e; ++i) { - if (i) - OS << " | "; - OS << dynamic_cast<DefInit*>(LI->getElement(i))->getDef()->getName(); - } - } - - // The option parameter field. - OS << ", " << R.getValueAsInt("NumArgs"); - - // The option help text. - if (!dynamic_cast<UnsetInit*>(R.getValueInit("HelpText"))) { - OS << ",\n"; - OS << " "; - write_cstring(OS, R.getValueAsString("HelpText")); - } else - OS << ", 0"; - - // The option meta-variable name. - OS << ", "; - if (!dynamic_cast<UnsetInit*>(R.getValueInit("MetaVarName"))) - write_cstring(OS, R.getValueAsString("MetaVarName")); - else - OS << "0"; - - OS << ")\n"; - } - } -} |