3bcdfc0ec1
Cleaned up the option parsing code to always pass around the short options as integers. Previously we cast this down to "char" and lost some information. I recently added an assert that would detect duplicate short character options which was firing during the test suite. This fix does the following: - make sure all short options are treated as "int" - make sure that short options can be non-printable values when a short option is not required or when an option group is mixed into many commands and a short option is not desired - fix the help printing to "do the right thing" in all cases. Previously if there were duplicate short character options, it would just not emit help for the duplicates - fix option parsing when there are duplicates to parse options correctly. Previously the option parsing, when done for an OptionGroup, would just start parsing options incorrectly by omitting table entries and it would end up setting the wrong option value llvm-svn: 169189
120 lines
3.0 KiB
C++
120 lines
3.0 KiB
C++
//===-- CommandObjectHelp.h -------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef liblldb_CommandObjectHelp_h_
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#define liblldb_CommandObjectHelp_h_
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Interpreter/CommandObject.h"
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#include "lldb/Interpreter/Options.h"
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namespace lldb_private {
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//-------------------------------------------------------------------------
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// CommandObjectHelp
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//-------------------------------------------------------------------------
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class CommandObjectHelp : public CommandObjectParsed
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{
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public:
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CommandObjectHelp (CommandInterpreter &interpreter);
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virtual
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~CommandObjectHelp ();
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virtual int
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HandleCompletion (Args &input,
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int &cursor_index,
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int &cursor_char_position,
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int match_start_point,
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int max_return_elements,
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bool &word_complete,
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StringList &matches);
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class CommandOptions : public Options
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{
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public:
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CommandOptions (CommandInterpreter &interpreter) :
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Options (interpreter)
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{
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}
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virtual
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~CommandOptions (){}
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virtual Error
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SetOptionValue (uint32_t option_idx, const char *option_arg)
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{
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Error error;
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const int short_option = m_getopt_table[option_idx].val;
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switch (short_option)
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{
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case 'a':
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m_show_aliases = true;
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break;
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case 'u':
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m_show_user_defined = false;
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break;
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default:
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error.SetErrorStringWithFormat ("unrecognized option '%c'", short_option);
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break;
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}
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return error;
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}
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void
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OptionParsingStarting ()
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{
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m_show_aliases = false;
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m_show_user_defined = true;
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}
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const OptionDefinition*
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GetDefinitions ()
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{
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return g_option_table;
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}
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// Options table: Required for subclasses of Options.
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static OptionDefinition g_option_table[];
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// Instance variables to hold the values for command options.
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bool m_show_aliases;
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bool m_show_user_defined;
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};
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virtual Options *
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GetOptions ()
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{
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return &m_options;
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}
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protected:
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virtual bool
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DoExecute (Args& command,
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CommandReturnObject &result);
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private:
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CommandOptions m_options;
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};
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} // namespace lldb_private
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#endif // liblldb_CommandObjectHelp_h_
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