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https://github.com/RPCSX/llvm.git
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Allow any cl::opt to use the method getPosition() to retrieve the option's
absolute position on the command line. Similarly allow any cl::list to use the method getPosition(n) to retrieve the absolute position of the nth option in the list. This provides support for two things: (a) options like -l that are actually positional and their order of occurrence matters when they are intermixed with positional arguments like "a.o"; and (b) options like -x LANG which affect only the positional arguments that come after the option. In both cases, knowing the absolute position of a given option helps. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15725 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
parent
1c284ac5ec
commit
1e13fd23d3
@ -51,7 +51,7 @@ void ParseEnvironmentOptions(const char *progName, const char *envvar,
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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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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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@ -103,13 +103,13 @@ enum FormattingFlags {
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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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FormattingMask = 0x180, // Union of the above flags.
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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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PositionalEatsArgs = 0x400, // Should this positional cl::list eat -args?
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MiscMask = 0x600,
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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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PositionalEatsArgs = 0x400, // Should this positional cl::list eat -args?
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MiscMask = 0x600, // Union of the above flags.
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};
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@ -126,7 +126,8 @@ class Option {
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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 bool handleOccurrence(unsigned pos, const char *ArgName,
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const std::string &Arg) = 0;
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virtual enum NumOccurrences getNumOccurrencesFlagDefault() const {
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return Optional;
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@ -141,8 +142,9 @@ class Option {
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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 NumOccurrences; // The number of times specified
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int Flags; // Flags for the argument
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unsigned Position; // Position of last occurrence of the option
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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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@ -171,6 +173,7 @@ public:
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inline unsigned getMiscFlags() const {
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return Flags & MiscMask;
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}
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inline unsigned getPosition() const { return Position; }
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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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@ -198,8 +201,9 @@ public:
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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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void setPosition(unsigned pos) { Position = pos; }
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protected:
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Option() : NumOccurrences(0), Flags(0),
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Option() : NumOccurrences(0), Flags(0), Position(0),
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ArgStr(""), HelpStr(""), ValueStr("") {}
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public:
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@ -219,7 +223,8 @@ public:
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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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bool addOccurrence(unsigned pos, const char *ArgName,
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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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@ -250,7 +255,6 @@ struct value_desc {
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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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@ -438,7 +442,7 @@ public:
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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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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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@ -492,7 +496,6 @@ struct basic_parser_impl { // non-template implementation of basic_parser<t>
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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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@ -545,8 +548,7 @@ template<>
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struct parser<unsigned> : public basic_parser<unsigned> {
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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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unsigned &Val);
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bool parse(Option &O, const char *AN, const std::string &Arg, unsigned &Val);
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// getValueName - Overload in subclass to provide a better default value.
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virtual const char *getValueName() const { return "uint"; }
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@ -585,7 +587,7 @@ struct parser<float> : public basic_parser<float> {
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template<>
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struct parser<std::string> : public basic_parser<std::string> {
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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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bool parse(Option &O, const char *AN, const std::string &Arg,
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std::string &Value) {
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Value = Arg;
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return false;
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@ -595,8 +597,6 @@ struct parser<std::string> : public basic_parser<std::string> {
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virtual const char *getValueName() const { return "string"; }
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};
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//===----------------------------------------------------------------------===//
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// applicator class - This class is used because we must use partial
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// specialization to handle literal string arguments specially (const char* does
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@ -728,11 +728,13 @@ class opt : public Option,
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is_class<DataType>::value> {
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ParserClass Parser;
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virtual bool handleOccurrence(const char *ArgName, const std::string &Arg) {
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virtual bool handleOccurrence(unsigned pos, const char *ArgName,
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const std::string &Arg) {
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typename ParserClass::parser_data_type Val;
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if (Parser.parse(*this, ArgName, Arg, Val))
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return true; // Parse error!
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setValue(Val);
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setPosition(pos);
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return false;
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}
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@ -875,6 +877,7 @@ struct list_storage<DataType, bool> : public std::vector<DataType> {
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template <class DataType, class Storage = bool,
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class ParserClass = parser<DataType> >
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class list : public Option, public list_storage<DataType, Storage> {
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std::vector<unsigned> Positions;
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ParserClass Parser;
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virtual enum NumOccurrences getNumOccurrencesFlagDefault() const {
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@ -884,11 +887,14 @@ class list : public Option, public list_storage<DataType, Storage> {
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return Parser.getValueExpectedFlagDefault();
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}
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virtual bool handleOccurrence(const char *ArgName, const std::string &Arg) {
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virtual bool handleOccurrence(unsigned pos, const char *ArgName,
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const std::string &Arg) {
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typename ParserClass::parser_data_type Val;
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if (Parser.parse(*this, ArgName, Arg, Val))
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return true; // Parse Error!
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addValue(Val);
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setPosition(pos);
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Positions.push_back(pos);
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return false;
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}
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@ -905,6 +911,11 @@ class list : public Option, public list_storage<DataType, Storage> {
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public:
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ParserClass &getParser() { return Parser; }
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unsigned getPosition(unsigned optnum) {
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assert(optnum < this->size() && "Invalid option index");
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return Positions[optnum];
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}
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// One option...
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template<class M0t>
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list(const M0t &M0) {
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@ -966,16 +977,15 @@ public:
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}
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};
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//===----------------------------------------------------------------------===//
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// Aliased command line option (alias this name to a preexisting name)
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//
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class alias : public Option {
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Option *AliasFor;
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virtual bool handleOccurrence(const char *ArgName, const std::string &Arg) {
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return AliasFor->handleOccurrence(AliasFor->ArgStr, Arg);
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virtual bool handleOccurrence(unsigned pos, const char *ArgName,
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const std::string &Arg) {
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return AliasFor->handleOccurrence(pos, AliasFor->ArgStr, Arg);
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}
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// Aliases default to be hidden...
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virtual enum OptionHidden getOptionHiddenFlagDefault() const {return Hidden;}
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@ -51,7 +51,7 @@ void ParseEnvironmentOptions(const char *progName, const char *envvar,
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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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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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@ -103,13 +103,13 @@ enum FormattingFlags {
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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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FormattingMask = 0x180, // Union of the above flags.
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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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PositionalEatsArgs = 0x400, // Should this positional cl::list eat -args?
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MiscMask = 0x600,
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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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PositionalEatsArgs = 0x400, // Should this positional cl::list eat -args?
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MiscMask = 0x600, // Union of the above flags.
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};
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@ -126,7 +126,8 @@ class Option {
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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 bool handleOccurrence(unsigned pos, const char *ArgName,
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const std::string &Arg) = 0;
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virtual enum NumOccurrences getNumOccurrencesFlagDefault() const {
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return Optional;
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@ -141,8 +142,9 @@ class Option {
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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 NumOccurrences; // The number of times specified
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int Flags; // Flags for the argument
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unsigned Position; // Position of last occurrence of the option
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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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@ -171,6 +173,7 @@ public:
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inline unsigned getMiscFlags() const {
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return Flags & MiscMask;
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}
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inline unsigned getPosition() const { return Position; }
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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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@ -198,8 +201,9 @@ public:
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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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void setPosition(unsigned pos) { Position = pos; }
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protected:
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Option() : NumOccurrences(0), Flags(0),
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Option() : NumOccurrences(0), Flags(0), Position(0),
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ArgStr(""), HelpStr(""), ValueStr("") {}
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public:
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@ -219,7 +223,8 @@ public:
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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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bool addOccurrence(unsigned pos, const char *ArgName,
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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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@ -250,7 +255,6 @@ struct value_desc {
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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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@ -438,7 +442,7 @@ public:
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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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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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@ -492,7 +496,6 @@ struct basic_parser_impl { // non-template implementation of basic_parser<t>
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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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@ -545,8 +548,7 @@ template<>
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struct parser<unsigned> : public basic_parser<unsigned> {
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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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unsigned &Val);
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bool parse(Option &O, const char *AN, const std::string &Arg, unsigned &Val);
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// getValueName - Overload in subclass to provide a better default value.
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virtual const char *getValueName() const { return "uint"; }
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@ -585,7 +587,7 @@ struct parser<float> : public basic_parser<float> {
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template<>
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struct parser<std::string> : public basic_parser<std::string> {
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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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bool parse(Option &O, const char *AN, const std::string &Arg,
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std::string &Value) {
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Value = Arg;
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return false;
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@ -595,8 +597,6 @@ struct parser<std::string> : public basic_parser<std::string> {
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virtual const char *getValueName() const { return "string"; }
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};
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//===----------------------------------------------------------------------===//
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// applicator class - This class is used because we must use partial
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// specialization to handle literal string arguments specially (const char* does
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@ -728,11 +728,13 @@ class opt : public Option,
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is_class<DataType>::value> {
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ParserClass Parser;
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virtual bool handleOccurrence(const char *ArgName, const std::string &Arg) {
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virtual bool handleOccurrence(unsigned pos, const char *ArgName,
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const std::string &Arg) {
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typename ParserClass::parser_data_type Val;
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if (Parser.parse(*this, ArgName, Arg, Val))
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return true; // Parse error!
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setValue(Val);
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setPosition(pos);
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return false;
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}
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@ -875,6 +877,7 @@ struct list_storage<DataType, bool> : public std::vector<DataType> {
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template <class DataType, class Storage = bool,
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class ParserClass = parser<DataType> >
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class list : public Option, public list_storage<DataType, Storage> {
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std::vector<unsigned> Positions;
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ParserClass Parser;
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virtual enum NumOccurrences getNumOccurrencesFlagDefault() const {
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@ -884,11 +887,14 @@ class list : public Option, public list_storage<DataType, Storage> {
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return Parser.getValueExpectedFlagDefault();
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}
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virtual bool handleOccurrence(const char *ArgName, const std::string &Arg) {
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virtual bool handleOccurrence(unsigned pos, const char *ArgName,
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const std::string &Arg) {
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typename ParserClass::parser_data_type Val;
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if (Parser.parse(*this, ArgName, Arg, Val))
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return true; // Parse Error!
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addValue(Val);
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setPosition(pos);
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Positions.push_back(pos);
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return false;
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}
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@ -905,6 +911,11 @@ class list : public Option, public list_storage<DataType, Storage> {
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public:
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ParserClass &getParser() { return Parser; }
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unsigned getPosition(unsigned optnum) {
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assert(optnum < this->size() && "Invalid option index");
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return Positions[optnum];
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}
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// One option...
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template<class M0t>
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list(const M0t &M0) {
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@ -966,16 +977,15 @@ public:
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}
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};
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//===----------------------------------------------------------------------===//
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// Aliased command line option (alias this name to a preexisting name)
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//
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class alias : public Option {
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Option *AliasFor;
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virtual bool handleOccurrence(const char *ArgName, const std::string &Arg) {
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return AliasFor->handleOccurrence(AliasFor->ArgStr, Arg);
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virtual bool handleOccurrence(unsigned pos, const char *ArgName,
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const std::string &Arg) {
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return AliasFor->handleOccurrence(pos, AliasFor->ArgStr, Arg);
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}
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// Aliases default to be hidden...
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virtual enum OptionHidden getOptionHiddenFlagDefault() const {return Hidden;}
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@ -111,11 +111,12 @@ static inline bool ProvideOption(Option *Handler, const char *ArgName,
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}
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// Run the handler now!
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return Handler->addOccurrence(ArgName, Value);
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return Handler->addOccurrence(i, ArgName, Value);
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}
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static bool ProvidePositionalOption(Option *Handler, const std::string &Arg) {
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int Dummy;
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static bool ProvidePositionalOption(Option *Handler, const std::string &Arg,
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int i) {
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int Dummy = i;
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return ProvideOption(Handler, Handler->ArgStr, Arg.c_str(), 0, 0, Dummy);
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}
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@ -323,10 +324,10 @@ void cl::ParseCommandLineOptions(int &argc, char **argv,
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}
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}
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// PositionalVals - A vector of "positional" arguments we accumulate into to
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// processes at the end...
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// PositionalVals - A vector of "positional" arguments we accumulate into
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// the process at the end...
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//
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||||
std::vector<std::string> PositionalVals;
|
||||
std::vector<std::pair<std::string,unsigned> > PositionalVals;
|
||||
|
||||
// If the program has named positional arguments, and the name has been run
|
||||
// across, keep track of which positional argument was named. Otherwise put
|
||||
@ -347,10 +348,10 @@ void cl::ParseCommandLineOptions(int &argc, char **argv,
|
||||
if (argv[i][0] != '-' || argv[i][1] == 0 || DashDashFound) {
|
||||
// Positional argument!
|
||||
if (ActivePositionalArg) {
|
||||
ProvidePositionalOption(ActivePositionalArg, argv[i]);
|
||||
ProvidePositionalOption(ActivePositionalArg, argv[i], i);
|
||||
continue; // We are done!
|
||||
} else if (!PositionalOpts.empty()) {
|
||||
PositionalVals.push_back(argv[i]);
|
||||
PositionalVals.push_back(std::make_pair(argv[i],i));
|
||||
|
||||
// All of the positional arguments have been fulfulled, give the rest to
|
||||
// the consume after option... if it's specified...
|
||||
@ -358,7 +359,7 @@ void cl::ParseCommandLineOptions(int &argc, char **argv,
|
||||
if (PositionalVals.size() >= NumPositionalRequired &&
|
||||
ConsumeAfterOpt != 0) {
|
||||
for (++i; i < argc; ++i)
|
||||
PositionalVals.push_back(argv[i]);
|
||||
PositionalVals.push_back(std::make_pair(argv[i],i));
|
||||
break; // Handle outside of the argument processing loop...
|
||||
}
|
||||
|
||||
@ -377,7 +378,7 @@ void cl::ParseCommandLineOptions(int &argc, char **argv,
|
||||
ArgName = argv[i]+1;
|
||||
Handler = LookupOption(ArgName, Value);
|
||||
if (!Handler || Handler->getFormattingFlag() != cl::Positional) {
|
||||
ProvidePositionalOption(ActivePositionalArg, argv[i]);
|
||||
ProvidePositionalOption(ActivePositionalArg, argv[i], i);
|
||||
continue; // We are done!
|
||||
}
|
||||
|
||||
@ -479,7 +480,9 @@ void cl::ParseCommandLineOptions(int &argc, char **argv,
|
||||
unsigned ValNo = 0, NumVals = PositionalVals.size();
|
||||
for (unsigned i = 0, e = PositionalOpts.size(); i != e; ++i) {
|
||||
if (RequiresValue(PositionalOpts[i])) {
|
||||
ProvidePositionalOption(PositionalOpts[i], PositionalVals[ValNo++]);
|
||||
ProvidePositionalOption(PositionalOpts[i], PositionalVals[ValNo].first,
|
||||
PositionalVals[ValNo].second);
|
||||
ValNo++;
|
||||
--NumPositionalRequired; // We fulfilled our duty...
|
||||
}
|
||||
|
||||
@ -495,7 +498,10 @@ void cl::ParseCommandLineOptions(int &argc, char **argv,
|
||||
// FALL THROUGH
|
||||
case cl::ZeroOrMore: // Zero or more will take all they can get...
|
||||
case cl::OneOrMore: // One or more will take all they can get...
|
||||
ProvidePositionalOption(PositionalOpts[i], PositionalVals[ValNo++]);
|
||||
ProvidePositionalOption(PositionalOpts[i],
|
||||
PositionalVals[ValNo].first,
|
||||
PositionalVals[ValNo].second);
|
||||
ValNo++;
|
||||
break;
|
||||
default:
|
||||
assert(0 && "Internal error, unexpected NumOccurrences flag in "
|
||||
@ -507,24 +513,31 @@ void cl::ParseCommandLineOptions(int &argc, char **argv,
|
||||
assert(ConsumeAfterOpt && NumPositionalRequired <= PositionalVals.size());
|
||||
unsigned ValNo = 0;
|
||||
for (unsigned j = 1, e = PositionalOpts.size(); j != e; ++j)
|
||||
if (RequiresValue(PositionalOpts[j]))
|
||||
if (RequiresValue(PositionalOpts[j])) {
|
||||
ErrorParsing |= ProvidePositionalOption(PositionalOpts[j],
|
||||
PositionalVals[ValNo++]);
|
||||
PositionalVals[ValNo].first,
|
||||
PositionalVals[ValNo].second);
|
||||
ValNo++;
|
||||
}
|
||||
|
||||
// Handle the case where there is just one positional option, and it's
|
||||
// optional. In this case, we want to give JUST THE FIRST option to the
|
||||
// positional option and keep the rest for the consume after. The above
|
||||
// loop would have assigned no values to positional options in this case.
|
||||
//
|
||||
if (PositionalOpts.size() == 2 && ValNo == 0 && !PositionalVals.empty())
|
||||
if (PositionalOpts.size() == 2 && ValNo == 0 && !PositionalVals.empty()) {
|
||||
ErrorParsing |= ProvidePositionalOption(PositionalOpts[1],
|
||||
PositionalVals[ValNo++]);
|
||||
PositionalVals[ValNo].first,
|
||||
PositionalVals[ValNo].second);
|
||||
ValNo++;
|
||||
}
|
||||
|
||||
// Handle over all of the rest of the arguments to the
|
||||
// cl::ConsumeAfter command line option...
|
||||
for (; ValNo != PositionalVals.size(); ++ValNo)
|
||||
ErrorParsing |= ProvidePositionalOption(ConsumeAfterOpt,
|
||||
PositionalVals[ValNo]);
|
||||
PositionalVals[ValNo].first,
|
||||
PositionalVals[ValNo].second);
|
||||
}
|
||||
|
||||
// Loop over args and make sure all required args are specified!
|
||||
@ -567,7 +580,7 @@ bool Option::error(std::string Message, const char *ArgName) {
|
||||
return true;
|
||||
}
|
||||
|
||||
bool Option::addOccurrence(const char *ArgName, const std::string &Value) {
|
||||
bool Option::addOccurrence(unsigned pos, const char *ArgName, const std::string &Value) {
|
||||
NumOccurrences++; // Increment the number of times we have been seen
|
||||
|
||||
switch (getNumOccurrencesFlag()) {
|
||||
@ -585,7 +598,7 @@ bool Option::addOccurrence(const char *ArgName, const std::string &Value) {
|
||||
default: return error(": bad num occurrences flag value!");
|
||||
}
|
||||
|
||||
return handleOccurrence(ArgName, Value);
|
||||
return handleOccurrence(pos, ArgName, Value);
|
||||
}
|
||||
|
||||
// addArgument - Tell the system that this Option subclass will handle all
|
||||
|
||||
Loading…
Reference in New Issue
Block a user