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https://github.com/c64scene-ar/llvm-6502.git
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10029 91177308-0d34-0410-b5e6-96231b3b80d8
1034 lines
34 KiB
C++
1034 lines
34 KiB
C++
//===- Support/CommandLine.h - Flexible Command line parser -----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This class implements a command line argument processor that is useful when
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// creating a tool. It provides a simple, minimalistic interface that is easily
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// extensible and supports nonlocal (library) command line options.
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//
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// Note that rather than trying to figure out what this code does, you should
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// read the library documentation located in docs/CommandLine.html or looks at
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// the many example usages in tools/*/*.cpp
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//
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//===----------------------------------------------------------------------===//
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#ifndef SUPPORT_COMMANDLINE_H
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#define SUPPORT_COMMANDLINE_H
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#include <string>
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#include <vector>
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#include <utility>
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#include <cstdarg>
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#include <cassert>
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#include "boost/type_traits/object_traits.hpp"
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namespace llvm {
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/// cl Namespace - This namespace contains all of the command line option
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/// processing machinery. It is intentionally a short name to make qualified
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/// usage concise.
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namespace cl {
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//===----------------------------------------------------------------------===//
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// ParseCommandLineOptions - Command line option processing entry point.
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//
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void ParseCommandLineOptions(int &argc, char **argv,
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const char *Overview = 0);
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//===----------------------------------------------------------------------===//
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// ParseEnvironmentOptions - Environment variable option processing alternate
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// entry point.
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//
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void ParseEnvironmentOptions(const char *progName, const char *envvar,
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const char *Overview = 0);
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//===----------------------------------------------------------------------===//
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// Flags permitted to be passed to command line arguments
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//
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enum NumOccurrences { // Flags for the number of occurrences allowed
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Optional = 0x01, // Zero or One occurrence
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ZeroOrMore = 0x02, // Zero or more occurrences allowed
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Required = 0x03, // One occurrence required
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OneOrMore = 0x04, // One or more occurrences required
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// ConsumeAfter - Indicates that this option is fed anything that follows the
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// last positional argument required by the application (it is an error if
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// there are zero positional arguments, and a ConsumeAfter option is used).
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// Thus, for example, all arguments to LLI are processed until a filename is
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// found. Once a filename is found, all of the succeeding arguments are
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// passed, unprocessed, to the ConsumeAfter option.
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//
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ConsumeAfter = 0x05,
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OccurrencesMask = 0x07,
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};
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enum ValueExpected { // Is a value required for the option?
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ValueOptional = 0x08, // The value can appear... or not
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ValueRequired = 0x10, // The value is required to appear!
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ValueDisallowed = 0x18, // A value may not be specified (for flags)
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ValueMask = 0x18,
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};
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enum OptionHidden { // Control whether -help shows this option
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NotHidden = 0x20, // Option included in --help & --help-hidden
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Hidden = 0x40, // -help doesn't, but --help-hidden does
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ReallyHidden = 0x60, // Neither --help nor --help-hidden show this arg
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HiddenMask = 0x60,
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};
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// Formatting flags - This controls special features that the option might have
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// that cause it to be parsed differently...
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//
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// Prefix - This option allows arguments that are otherwise unrecognized to be
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// matched by options that are a prefix of the actual value. This is useful for
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// cases like a linker, where options are typically of the form '-lfoo' or
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// '-L../../include' where -l or -L are the actual flags. When prefix is
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// enabled, and used, the value for the flag comes from the suffix of the
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// argument.
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//
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// Grouping - With this option enabled, multiple letter options are allowed to
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// bunch together with only a single hyphen for the whole group. This allows
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// emulation of the behavior that ls uses for example: ls -la === ls -l -a
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//
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enum FormattingFlags {
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NormalFormatting = 0x000, // Nothing special
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Positional = 0x080, // Is a positional argument, no '-' required
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Prefix = 0x100, // Can this option directly prefix its value?
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Grouping = 0x180, // Can this option group with other options?
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FormattingMask = 0x180,
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};
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enum MiscFlags { // Miscellaneous flags to adjust argument
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CommaSeparated = 0x200, // Should this cl::list split between commas?
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MiscMask = 0x200,
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};
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//===----------------------------------------------------------------------===//
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// Option Base class
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//
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class alias;
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class Option {
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friend void cl::ParseCommandLineOptions(int &, char **, const char *, int);
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friend class alias;
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// handleOccurrences - Overriden by subclasses to handle the value passed into
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// an argument. Should return true if there was an error processing the
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// argument and the program should exit.
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//
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virtual bool handleOccurrence(const char *ArgName, const std::string &Arg) = 0;
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virtual enum NumOccurrences getNumOccurrencesFlagDefault() const {
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return Optional;
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}
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virtual enum ValueExpected getValueExpectedFlagDefault() const {
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return ValueOptional;
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}
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virtual enum OptionHidden getOptionHiddenFlagDefault() const {
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return NotHidden;
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}
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virtual enum FormattingFlags getFormattingFlagDefault() const {
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return NormalFormatting;
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}
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int NumOccurrences; // The number of times specified
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int Flags; // Flags for the argument
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public:
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const char *ArgStr; // The argument string itself (ex: "help", "o")
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const char *HelpStr; // The descriptive text message for --help
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const char *ValueStr; // String describing what the value of this option is
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inline enum NumOccurrences getNumOccurrencesFlag() const {
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int NO = Flags & OccurrencesMask;
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return NO ? static_cast<enum NumOccurrences>(NO)
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: getNumOccurrencesFlagDefault();
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}
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inline enum ValueExpected getValueExpectedFlag() const {
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int VE = Flags & ValueMask;
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return VE ? static_cast<enum ValueExpected>(VE)
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: getValueExpectedFlagDefault();
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}
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inline enum OptionHidden getOptionHiddenFlag() const {
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int OH = Flags & HiddenMask;
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return OH ? static_cast<enum OptionHidden>(OH)
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: getOptionHiddenFlagDefault();
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}
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inline enum FormattingFlags getFormattingFlag() const {
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int OH = Flags & FormattingMask;
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return OH ? static_cast<enum FormattingFlags>(OH)
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: getFormattingFlagDefault();
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}
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inline unsigned getMiscFlags() const {
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return Flags & MiscMask;
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}
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// hasArgStr - Return true if the argstr != ""
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bool hasArgStr() const { return ArgStr[0] != 0; }
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//-------------------------------------------------------------------------===
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// Accessor functions set by OptionModifiers
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//
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void setArgStr(const char *S) { ArgStr = S; }
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void setDescription(const char *S) { HelpStr = S; }
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void setValueStr(const char *S) { ValueStr = S; }
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void setFlag(unsigned Flag, unsigned FlagMask) {
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if (Flags & FlagMask) {
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error(": Specified two settings for the same option!");
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exit(1);
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}
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Flags |= Flag;
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}
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void setNumOccurrencesFlag(enum NumOccurrences Val) {
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setFlag(Val, OccurrencesMask);
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}
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void setValueExpectedFlag(enum ValueExpected Val) { setFlag(Val, ValueMask); }
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void setHiddenFlag(enum OptionHidden Val) { setFlag(Val, HiddenMask); }
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void setFormattingFlag(enum FormattingFlags V) { setFlag(V, FormattingMask); }
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void setMiscFlag(enum MiscFlags M) { setFlag(M, M); }
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protected:
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Option() : NumOccurrences(0), Flags(0),
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ArgStr(""), HelpStr(""), ValueStr("") {}
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public:
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// addArgument - Tell the system that this Option subclass will handle all
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// occurrences of -ArgStr on the command line.
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//
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void addArgument(const char *ArgStr);
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void removeArgument(const char *ArgStr);
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// Return the width of the option tag for printing...
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virtual unsigned getOptionWidth() const = 0;
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// printOptionInfo - Print out information about this option. The
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// to-be-maintained width is specified.
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//
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virtual void printOptionInfo(unsigned GlobalWidth) const = 0;
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// addOccurrence - Wrapper around handleOccurrence that enforces Flags
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//
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bool addOccurrence(const char *ArgName, const std::string &Value);
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// Prints option name followed by message. Always returns true.
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bool error(std::string Message, const char *ArgName = 0);
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public:
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inline int getNumOccurrences() const { return NumOccurrences; }
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virtual ~Option() {}
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};
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//===----------------------------------------------------------------------===//
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// Command line option modifiers that can be used to modify the behavior of
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// command line option parsers...
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//
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// desc - Modifier to set the description shown in the --help output...
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struct desc {
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const char *Desc;
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desc(const char *Str) : Desc(Str) {}
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void apply(Option &O) const { O.setDescription(Desc); }
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};
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// value_desc - Modifier to set the value description shown in the --help
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// output...
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struct value_desc {
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const char *Desc;
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value_desc(const char *Str) : Desc(Str) {}
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void apply(Option &O) const { O.setValueStr(Desc); }
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};
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// init - Specify a default (initial) value for the command line argument, if
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// the default constructor for the argument type does not give you what you
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// want. This is only valid on "opt" arguments, not on "list" arguments.
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//
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template<class Ty>
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struct initializer {
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const Ty &Init;
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initializer(const Ty &Val) : Init(Val) {}
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template<class Opt>
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void apply(Opt &O) const { O.setInitialValue(Init); }
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};
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template<class Ty>
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initializer<Ty> init(const Ty &Val) {
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return initializer<Ty>(Val);
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}
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// location - Allow the user to specify which external variable they want to
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// store the results of the command line argument processing into, if they don't
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// want to store it in the option itself.
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//
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template<class Ty>
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struct LocationClass {
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Ty &Loc;
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LocationClass(Ty &L) : Loc(L) {}
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template<class Opt>
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void apply(Opt &O) const { O.setLocation(O, Loc); }
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};
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template<class Ty>
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LocationClass<Ty> location(Ty &L) { return LocationClass<Ty>(L); }
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//===----------------------------------------------------------------------===//
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// Enum valued command line option
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//
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#define clEnumVal(ENUMVAL, DESC) #ENUMVAL, (int)ENUMVAL, DESC
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#define clEnumValN(ENUMVAL, FLAGNAME, DESC) FLAGNAME, (int)ENUMVAL, DESC
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// values - For custom data types, allow specifying a group of values together
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// as the values that go into the mapping that the option handler uses. Note
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// that the values list must always have a 0 at the end of the list to indicate
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// that the list has ended.
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//
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template<class DataType>
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class ValuesClass {
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// Use a vector instead of a map, because the lists should be short,
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// the overhead is less, and most importantly, it keeps them in the order
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// inserted so we can print our option out nicely.
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std::vector<std::pair<const char *, std::pair<int, const char *> > > Values;
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void processValues(va_list Vals);
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public:
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ValuesClass(const char *EnumName, DataType Val, const char *Desc,
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va_list ValueArgs) {
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// Insert the first value, which is required.
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Values.push_back(std::make_pair(EnumName, std::make_pair(Val, Desc)));
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// Process the varargs portion of the values...
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while (const char *EnumName = va_arg(ValueArgs, const char *)) {
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DataType EnumVal = static_cast<DataType>(va_arg(ValueArgs, int));
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const char *EnumDesc = va_arg(ValueArgs, const char *);
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Values.push_back(std::make_pair(EnumName, // Add value to value map
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std::make_pair(EnumVal, EnumDesc)));
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}
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}
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template<class Opt>
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void apply(Opt &O) const {
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for (unsigned i = 0, e = Values.size(); i != e; ++i)
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O.getParser().addLiteralOption(Values[i].first, Values[i].second.first,
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Values[i].second.second);
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}
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};
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template<class DataType>
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ValuesClass<DataType> values(const char *Arg, DataType Val, const char *Desc,
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...) {
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va_list ValueArgs;
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va_start(ValueArgs, Desc);
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ValuesClass<DataType> Vals(Arg, Val, Desc, ValueArgs);
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va_end(ValueArgs);
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return Vals;
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}
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//===----------------------------------------------------------------------===//
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// parser class - Parameterizable parser for different data types. By default,
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// known data types (string, int, bool) have specialized parsers, that do what
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// you would expect. The default parser, used for data types that are not
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// built-in, uses a mapping table to map specific options to values, which is
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// used, among other things, to handle enum types.
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//--------------------------------------------------
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// generic_parser_base - This class holds all the non-generic code that we do
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// not need replicated for every instance of the generic parser. This also
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// allows us to put stuff into CommandLine.cpp
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//
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struct generic_parser_base {
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virtual ~generic_parser_base() {} // Base class should have virtual-dtor
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// getNumOptions - Virtual function implemented by generic subclass to
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// indicate how many entries are in Values.
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//
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virtual unsigned getNumOptions() const = 0;
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// getOption - Return option name N.
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virtual const char *getOption(unsigned N) const = 0;
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// getDescription - Return description N
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virtual const char *getDescription(unsigned N) const = 0;
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// Return the width of the option tag for printing...
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virtual unsigned getOptionWidth(const Option &O) const;
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// printOptionInfo - Print out information about this option. The
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// to-be-maintained width is specified.
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//
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virtual void printOptionInfo(const Option &O, unsigned GlobalWidth) const;
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void initialize(Option &O) {
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// All of the modifiers for the option have been processed by now, so the
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// argstr field should be stable, copy it down now.
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//
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hasArgStr = O.hasArgStr();
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// If there has been no argstr specified, that means that we need to add an
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// argument for every possible option. This ensures that our options are
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// vectored to us.
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//
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if (!hasArgStr)
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for (unsigned i = 0, e = getNumOptions(); i != e; ++i)
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O.addArgument(getOption(i));
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}
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enum ValueExpected getValueExpectedFlagDefault() const {
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// If there is an ArgStr specified, then we are of the form:
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//
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// -opt=O2 or -opt O2 or -optO2
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//
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// In which case, the value is required. Otherwise if an arg str has not
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// been specified, we are of the form:
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//
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// -O2 or O2 or -la (where -l and -a are separate options)
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//
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// If this is the case, we cannot allow a value.
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//
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if (hasArgStr)
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return ValueRequired;
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else
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return ValueDisallowed;
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}
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// findOption - Return the option number corresponding to the specified
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// argument string. If the option is not found, getNumOptions() is returned.
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//
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unsigned findOption(const char *Name);
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protected:
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bool hasArgStr;
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};
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// Default parser implementation - This implementation depends on having a
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// mapping of recognized options to values of some sort. In addition to this,
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// each entry in the mapping also tracks a help message that is printed with the
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// command line option for --help. Because this is a simple mapping parser, the
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// data type can be any unsupported type.
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//
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template <class DataType>
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class parser : public generic_parser_base {
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protected:
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std::vector<std::pair<const char *,
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std::pair<DataType, const char *> > > Values;
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public:
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typedef DataType parser_data_type;
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// Implement virtual functions needed by generic_parser_base
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unsigned getNumOptions() const { return Values.size(); }
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const char *getOption(unsigned N) const { return Values[N].first; }
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const char *getDescription(unsigned N) const {
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return Values[N].second.second;
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}
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// parse - Return true on error.
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bool parse(Option &O, const char *ArgName, const std::string &Arg,
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DataType &V) {
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std::string ArgVal;
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if (hasArgStr)
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ArgVal = Arg;
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else
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ArgVal = ArgName;
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for (unsigned i = 0, e = Values.size(); i != e; ++i)
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if (ArgVal == Values[i].first) {
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V = Values[i].second.first;
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return false;
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}
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return O.error(": Cannot find option named '" + ArgVal + "'!");
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}
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// addLiteralOption - Add an entry to the mapping table...
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template <class DT>
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void addLiteralOption(const char *Name, const DT &V, const char *HelpStr) {
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assert(findOption(Name) == Values.size() && "Option already exists!");
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Values.push_back(std::make_pair(Name,
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std::make_pair(static_cast<DataType>(V),HelpStr)));
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}
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// removeLiteralOption - Remove the specified option.
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//
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void removeLiteralOption(const char *Name) {
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unsigned N = findOption(Name);
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assert(N != Values.size() && "Option not found!");
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Values.erase(Values.begin()+N);
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}
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};
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//--------------------------------------------------
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// basic_parser - Super class of parsers to provide boilerplate code
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//
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struct basic_parser_impl { // non-template implementation of basic_parser<t>
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virtual ~basic_parser_impl() {}
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enum ValueExpected getValueExpectedFlagDefault() const {
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return ValueRequired;
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}
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void initialize(Option &O) {}
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// Return the width of the option tag for printing...
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unsigned getOptionWidth(const Option &O) const;
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// printOptionInfo - Print out information about this option. The
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// to-be-maintained width is specified.
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//
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void printOptionInfo(const Option &O, unsigned GlobalWidth) const;
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// getValueName - Overload in subclass to provide a better default value.
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virtual const char *getValueName() const { return "value"; }
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};
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// basic_parser - The real basic parser is just a template wrapper that provides
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// a typedef for the provided data type.
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//
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template<class DataType>
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struct basic_parser : public basic_parser_impl {
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typedef DataType parser_data_type;
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};
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//--------------------------------------------------
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// parser<bool>
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//
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template<>
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struct parser<bool> : public basic_parser<bool> {
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// parse - Return true on error.
|
|
bool parse(Option &O, const char *ArgName, const std::string &Arg, bool &Val);
|
|
|
|
enum ValueExpected getValueExpectedFlagDefault() const {
|
|
return ValueOptional;
|
|
}
|
|
|
|
// getValueName - Do not print =<value> at all
|
|
virtual const char *getValueName() const { return 0; }
|
|
};
|
|
|
|
|
|
//--------------------------------------------------
|
|
// parser<int>
|
|
//
|
|
template<>
|
|
struct parser<int> : public basic_parser<int> {
|
|
|
|
// parse - Return true on error.
|
|
bool parse(Option &O, const char *ArgName, const std::string &Arg, int &Val);
|
|
|
|
// getValueName - Overload in subclass to provide a better default value.
|
|
virtual const char *getValueName() const { return "int"; }
|
|
};
|
|
|
|
|
|
//--------------------------------------------------
|
|
// parser<unsigned>
|
|
//
|
|
template<>
|
|
struct parser<unsigned> : public basic_parser<unsigned> {
|
|
|
|
// parse - Return true on error.
|
|
bool parse(Option &O, const char *ArgName, const std::string &Arg,
|
|
unsigned &Val);
|
|
|
|
// getValueName - Overload in subclass to provide a better default value.
|
|
virtual const char *getValueName() const { return "uint"; }
|
|
};
|
|
|
|
|
|
//--------------------------------------------------
|
|
// parser<double>
|
|
//
|
|
template<>
|
|
struct parser<double> : public basic_parser<double> {
|
|
// parse - Return true on error.
|
|
bool parse(Option &O, const char *AN, const std::string &Arg, double &Val);
|
|
|
|
// getValueName - Overload in subclass to provide a better default value.
|
|
virtual const char *getValueName() const { return "number"; }
|
|
};
|
|
|
|
|
|
//--------------------------------------------------
|
|
// parser<float>
|
|
//
|
|
template<>
|
|
struct parser<float> : public basic_parser<float> {
|
|
// parse - Return true on error.
|
|
bool parse(Option &O, const char *AN, const std::string &Arg, float &Val);
|
|
|
|
// getValueName - Overload in subclass to provide a better default value.
|
|
virtual const char *getValueName() const { return "number"; }
|
|
};
|
|
|
|
|
|
//--------------------------------------------------
|
|
// parser<std::string>
|
|
//
|
|
template<>
|
|
struct parser<std::string> : public basic_parser<std::string> {
|
|
// parse - Return true on error.
|
|
bool parse(Option &O, const char *ArgName, const std::string &Arg,
|
|
std::string &Value) {
|
|
Value = Arg;
|
|
return false;
|
|
}
|
|
|
|
// getValueName - Overload in subclass to provide a better default value.
|
|
virtual const char *getValueName() const { return "string"; }
|
|
};
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// applicator class - This class is used because we must use partial
|
|
// specialization to handle literal string arguments specially (const char* does
|
|
// not correctly respond to the apply method). Because the syntax to use this
|
|
// is a pain, we have the 'apply' method below to handle the nastiness...
|
|
//
|
|
template<class Mod> struct applicator {
|
|
template<class Opt>
|
|
static void opt(const Mod &M, Opt &O) { M.apply(O); }
|
|
};
|
|
|
|
// Handle const char* as a special case...
|
|
template<unsigned n> struct applicator<char[n]> {
|
|
template<class Opt>
|
|
static void opt(const char *Str, Opt &O) { O.setArgStr(Str); }
|
|
};
|
|
template<unsigned n> struct applicator<const char[n]> {
|
|
template<class Opt>
|
|
static void opt(const char *Str, Opt &O) { O.setArgStr(Str); }
|
|
};
|
|
template<> struct applicator<const char*> {
|
|
template<class Opt>
|
|
static void opt(const char *Str, Opt &O) { O.setArgStr(Str); }
|
|
};
|
|
|
|
template<> struct applicator<NumOccurrences> {
|
|
static void opt(NumOccurrences NO, Option &O) { O.setNumOccurrencesFlag(NO); }
|
|
};
|
|
template<> struct applicator<ValueExpected> {
|
|
static void opt(ValueExpected VE, Option &O) { O.setValueExpectedFlag(VE); }
|
|
};
|
|
template<> struct applicator<OptionHidden> {
|
|
static void opt(OptionHidden OH, Option &O) { O.setHiddenFlag(OH); }
|
|
};
|
|
template<> struct applicator<FormattingFlags> {
|
|
static void opt(FormattingFlags FF, Option &O) { O.setFormattingFlag(FF); }
|
|
};
|
|
template<> struct applicator<MiscFlags> {
|
|
static void opt(MiscFlags MF, Option &O) { O.setMiscFlag(MF); }
|
|
};
|
|
|
|
// apply method - Apply a modifier to an option in a type safe way.
|
|
template<class Mod, class Opt>
|
|
void apply(const Mod &M, Opt *O) {
|
|
applicator<Mod>::opt(M, *O);
|
|
}
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// opt_storage class
|
|
|
|
// Default storage class definition: external storage. This implementation
|
|
// assumes the user will specify a variable to store the data into with the
|
|
// cl::location(x) modifier.
|
|
//
|
|
template<class DataType, bool ExternalStorage, bool isClass>
|
|
class opt_storage {
|
|
DataType *Location; // Where to store the object...
|
|
|
|
void check() {
|
|
assert(Location != 0 && "cl::location(...) not specified for a command "
|
|
"line option with external storage, "
|
|
"or cl::init specified before cl::location()!!");
|
|
}
|
|
public:
|
|
opt_storage() : Location(0) {}
|
|
|
|
bool setLocation(Option &O, DataType &L) {
|
|
if (Location)
|
|
return O.error(": cl::location(x) specified more than once!");
|
|
Location = &L;
|
|
return false;
|
|
}
|
|
|
|
template<class T>
|
|
void setValue(const T &V) {
|
|
check();
|
|
*Location = V;
|
|
}
|
|
|
|
DataType &getValue() { check(); return *Location; }
|
|
const DataType &getValue() const { check(); return *Location; }
|
|
};
|
|
|
|
|
|
// Define how to hold a class type object, such as a string. Since we can
|
|
// inherit from a class, we do so. This makes us exactly compatible with the
|
|
// object in all cases that it is used.
|
|
//
|
|
template<class DataType>
|
|
struct opt_storage<DataType,false,true> : public DataType {
|
|
|
|
template<class T>
|
|
void setValue(const T &V) { DataType::operator=(V); }
|
|
|
|
DataType &getValue() { return *this; }
|
|
const DataType &getValue() const { return *this; }
|
|
};
|
|
|
|
// Define a partial specialization to handle things we cannot inherit from. In
|
|
// this case, we store an instance through containment, and overload operators
|
|
// to get at the value.
|
|
//
|
|
template<class DataType>
|
|
struct opt_storage<DataType, false, false> {
|
|
DataType Value;
|
|
|
|
// Make sure we initialize the value with the default constructor for the
|
|
// type.
|
|
opt_storage() : Value(DataType()) {}
|
|
|
|
template<class T>
|
|
void setValue(const T &V) { Value = V; }
|
|
DataType &getValue() { return Value; }
|
|
DataType getValue() const { return Value; }
|
|
};
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// opt - A scalar command line option.
|
|
//
|
|
template <class DataType, bool ExternalStorage = false,
|
|
class ParserClass = parser<DataType> >
|
|
class opt : public Option,
|
|
public opt_storage<DataType, ExternalStorage,
|
|
::boost::is_class<DataType>::value> {
|
|
ParserClass Parser;
|
|
|
|
virtual bool handleOccurrence(const char *ArgName, const std::string &Arg) {
|
|
typename ParserClass::parser_data_type Val;
|
|
if (Parser.parse(*this, ArgName, Arg, Val))
|
|
return true; // Parse error!
|
|
setValue(Val);
|
|
return false;
|
|
}
|
|
|
|
virtual enum ValueExpected getValueExpectedFlagDefault() const {
|
|
return Parser.getValueExpectedFlagDefault();
|
|
}
|
|
|
|
// Forward printing stuff to the parser...
|
|
virtual unsigned getOptionWidth() const {return Parser.getOptionWidth(*this);}
|
|
virtual void printOptionInfo(unsigned GlobalWidth) const {
|
|
Parser.printOptionInfo(*this, GlobalWidth);
|
|
}
|
|
|
|
void done() {
|
|
addArgument(ArgStr);
|
|
Parser.initialize(*this);
|
|
}
|
|
public:
|
|
// setInitialValue - Used by the cl::init modifier...
|
|
void setInitialValue(const DataType &V) { this->setValue(V); }
|
|
|
|
ParserClass &getParser() { return Parser; }
|
|
|
|
operator DataType() const { return this->getValue(); }
|
|
|
|
template<class T>
|
|
DataType &operator=(const T &Val) {
|
|
this->setValue(Val);
|
|
return this->getValue();
|
|
}
|
|
|
|
// One option...
|
|
template<class M0t>
|
|
opt(const M0t &M0) {
|
|
apply(M0, this);
|
|
done();
|
|
}
|
|
|
|
// Two options...
|
|
template<class M0t, class M1t>
|
|
opt(const M0t &M0, const M1t &M1) {
|
|
apply(M0, this); apply(M1, this);
|
|
done();
|
|
}
|
|
|
|
// Three options...
|
|
template<class M0t, class M1t, class M2t>
|
|
opt(const M0t &M0, const M1t &M1, const M2t &M2) {
|
|
apply(M0, this); apply(M1, this); apply(M2, this);
|
|
done();
|
|
}
|
|
// Four options...
|
|
template<class M0t, class M1t, class M2t, class M3t>
|
|
opt(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3) {
|
|
apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this);
|
|
done();
|
|
}
|
|
// Five options...
|
|
template<class M0t, class M1t, class M2t, class M3t, class M4t>
|
|
opt(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3,
|
|
const M4t &M4) {
|
|
apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this);
|
|
apply(M4, this);
|
|
done();
|
|
}
|
|
// Six options...
|
|
template<class M0t, class M1t, class M2t, class M3t,
|
|
class M4t, class M5t>
|
|
opt(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3,
|
|
const M4t &M4, const M5t &M5) {
|
|
apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this);
|
|
apply(M4, this); apply(M5, this);
|
|
done();
|
|
}
|
|
// Seven options...
|
|
template<class M0t, class M1t, class M2t, class M3t,
|
|
class M4t, class M5t, class M6t>
|
|
opt(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3,
|
|
const M4t &M4, const M5t &M5, const M6t &M6) {
|
|
apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this);
|
|
apply(M4, this); apply(M5, this); apply(M6, this);
|
|
done();
|
|
}
|
|
// Eight options...
|
|
template<class M0t, class M1t, class M2t, class M3t,
|
|
class M4t, class M5t, class M6t, class M7t>
|
|
opt(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3,
|
|
const M4t &M4, const M5t &M5, const M6t &M6, const M7t &M7) {
|
|
apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this);
|
|
apply(M4, this); apply(M5, this); apply(M6, this); apply(M7, this);
|
|
done();
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// list_storage class
|
|
|
|
// Default storage class definition: external storage. This implementation
|
|
// assumes the user will specify a variable to store the data into with the
|
|
// cl::location(x) modifier.
|
|
//
|
|
template<class DataType, class StorageClass>
|
|
class list_storage {
|
|
StorageClass *Location; // Where to store the object...
|
|
|
|
public:
|
|
list_storage() : Location(0) {}
|
|
|
|
bool setLocation(Option &O, StorageClass &L) {
|
|
if (Location)
|
|
return O.error(": cl::location(x) specified more than once!");
|
|
Location = &L;
|
|
return false;
|
|
}
|
|
|
|
template<class T>
|
|
void addValue(const T &V) {
|
|
assert(Location != 0 && "cl::location(...) not specified for a command "
|
|
"line option with external storage!");
|
|
Location->push_back(V);
|
|
}
|
|
};
|
|
|
|
|
|
// Define how to hold a class type object, such as a string. Since we can
|
|
// inherit from a class, we do so. This makes us exactly compatible with the
|
|
// object in all cases that it is used.
|
|
//
|
|
template<class DataType>
|
|
struct list_storage<DataType, bool> : public std::vector<DataType> {
|
|
|
|
template<class T>
|
|
void addValue(const T &V) { push_back(V); }
|
|
};
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// list - A list of command line options.
|
|
//
|
|
template <class DataType, class Storage = bool,
|
|
class ParserClass = parser<DataType> >
|
|
class list : public Option, public list_storage<DataType, Storage> {
|
|
ParserClass Parser;
|
|
|
|
virtual enum NumOccurrences getNumOccurrencesFlagDefault() const {
|
|
return ZeroOrMore;
|
|
}
|
|
virtual enum ValueExpected getValueExpectedFlagDefault() const {
|
|
return Parser.getValueExpectedFlagDefault();
|
|
}
|
|
|
|
virtual bool handleOccurrence(const char *ArgName, const std::string &Arg) {
|
|
typename ParserClass::parser_data_type Val;
|
|
if (Parser.parse(*this, ArgName, Arg, Val))
|
|
return true; // Parse Error!
|
|
addValue(Val);
|
|
return false;
|
|
}
|
|
|
|
// Forward printing stuff to the parser...
|
|
virtual unsigned getOptionWidth() const {return Parser.getOptionWidth(*this);}
|
|
virtual void printOptionInfo(unsigned GlobalWidth) const {
|
|
Parser.printOptionInfo(*this, GlobalWidth);
|
|
}
|
|
|
|
void done() {
|
|
addArgument(ArgStr);
|
|
Parser.initialize(*this);
|
|
}
|
|
public:
|
|
ParserClass &getParser() { return Parser; }
|
|
|
|
// One option...
|
|
template<class M0t>
|
|
list(const M0t &M0) {
|
|
apply(M0, this);
|
|
done();
|
|
}
|
|
// Two options...
|
|
template<class M0t, class M1t>
|
|
list(const M0t &M0, const M1t &M1) {
|
|
apply(M0, this); apply(M1, this);
|
|
done();
|
|
}
|
|
// Three options...
|
|
template<class M0t, class M1t, class M2t>
|
|
list(const M0t &M0, const M1t &M1, const M2t &M2) {
|
|
apply(M0, this); apply(M1, this); apply(M2, this);
|
|
done();
|
|
}
|
|
// Four options...
|
|
template<class M0t, class M1t, class M2t, class M3t>
|
|
list(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3) {
|
|
apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this);
|
|
done();
|
|
}
|
|
// Five options...
|
|
template<class M0t, class M1t, class M2t, class M3t, class M4t>
|
|
list(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3,
|
|
const M4t &M4) {
|
|
apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this);
|
|
apply(M4, this);
|
|
done();
|
|
}
|
|
// Six options...
|
|
template<class M0t, class M1t, class M2t, class M3t,
|
|
class M4t, class M5t>
|
|
list(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3,
|
|
const M4t &M4, const M5t &M5) {
|
|
apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this);
|
|
apply(M4, this); apply(M5, this);
|
|
done();
|
|
}
|
|
// Seven options...
|
|
template<class M0t, class M1t, class M2t, class M3t,
|
|
class M4t, class M5t, class M6t>
|
|
list(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3,
|
|
const M4t &M4, const M5t &M5, const M6t &M6) {
|
|
apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this);
|
|
apply(M4, this); apply(M5, this); apply(M6, this);
|
|
done();
|
|
}
|
|
// Eight options...
|
|
template<class M0t, class M1t, class M2t, class M3t,
|
|
class M4t, class M5t, class M6t, class M7t>
|
|
list(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3,
|
|
const M4t &M4, const M5t &M5, const M6t &M6, const M7t &M7) {
|
|
apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this);
|
|
apply(M4, this); apply(M5, this); apply(M6, this); apply(M7, this);
|
|
done();
|
|
}
|
|
};
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Aliased command line option (alias this name to a preexisting name)
|
|
//
|
|
|
|
class alias : public Option {
|
|
Option *AliasFor;
|
|
virtual bool handleOccurrence(const char *ArgName, const std::string &Arg) {
|
|
return AliasFor->handleOccurrence(AliasFor->ArgStr, Arg);
|
|
}
|
|
// Aliases default to be hidden...
|
|
virtual enum OptionHidden getOptionHiddenFlagDefault() const {return Hidden;}
|
|
|
|
// Handle printing stuff...
|
|
virtual unsigned getOptionWidth() const;
|
|
virtual void printOptionInfo(unsigned GlobalWidth) const;
|
|
|
|
void done() {
|
|
if (!hasArgStr())
|
|
error(": cl::alias must have argument name specified!");
|
|
if (AliasFor == 0)
|
|
error(": cl::alias must have an cl::aliasopt(option) specified!");
|
|
addArgument(ArgStr);
|
|
}
|
|
public:
|
|
void setAliasFor(Option &O) {
|
|
if (AliasFor)
|
|
error(": cl::alias must only have one cl::aliasopt(...) specified!");
|
|
AliasFor = &O;
|
|
}
|
|
|
|
// One option...
|
|
template<class M0t>
|
|
alias(const M0t &M0) : AliasFor(0) {
|
|
apply(M0, this);
|
|
done();
|
|
}
|
|
// Two options...
|
|
template<class M0t, class M1t>
|
|
alias(const M0t &M0, const M1t &M1) : AliasFor(0) {
|
|
apply(M0, this); apply(M1, this);
|
|
done();
|
|
}
|
|
// Three options...
|
|
template<class M0t, class M1t, class M2t>
|
|
alias(const M0t &M0, const M1t &M1, const M2t &M2) : AliasFor(0) {
|
|
apply(M0, this); apply(M1, this); apply(M2, this);
|
|
done();
|
|
}
|
|
// Four options...
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template<class M0t, class M1t, class M2t, class M3t>
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alias(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3)
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: AliasFor(0) {
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apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this);
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done();
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|
}
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};
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// aliasfor - Modifier to set the option an alias aliases.
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struct aliasopt {
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Option &Opt;
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aliasopt(Option &O) : Opt(O) {}
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void apply(alias &A) const { A.setAliasFor(Opt); }
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};
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} // End namespace cl
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} // End namespace llvm
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#endif
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