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annotate gen/cl_helpers.h @ 1137:45d73f0a9b43

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Automated merge with http://hg.dsource.org/projects/ldc
author Christian Kamm <kamm incasoftware de>
date Tue, 24 Mar 2009 14:34:16 +0100
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children cc1efa23030a
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1 #ifndef LDC_CL_HELPERS_H
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2 #define LDC_CL_HELPERS_H
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3
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4 #include <string>
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5
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6 #include "llvm/Support/CommandLine.h"
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7 #include "llvm/Support/Compiler.h"
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8
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9 struct Array;
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10
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11 namespace opts {
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12 namespace cl = llvm::cl;
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13
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14 /// Helper class for fancier options
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15 class FlagParser : public cl::parser<bool> {
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16 std::vector<std::pair<std::string, bool> > switches;
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17 public:
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18 template <class Opt>
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19 void initialize(Opt &O) {
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20 assert(!(O.getMiscFlags() & cl::AllowInverse)
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21 && "FlagParser doesn't support redundant AllowInverse flag");
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22
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23 std::string Name = O.ArgStr;
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24 switches.push_back(make_pair("enable-" + Name, true));
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25 switches.push_back(make_pair("disable-" + Name, false));
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26 // Replace <foo> with -enable-<foo>
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27 O.ArgStr = switches[0].first.c_str();
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28 }
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29
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30 bool parse(cl::Option &O, const char *ArgName, const std::string &ArgValue, bool &Val);
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31
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32 void getExtraOptionNames(std::vector<const char*> &Names);
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33 };
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34
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35 /// Helper class for options that set multiple flags
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36 class MultiSetter {
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37 std::vector<bool*> locations;
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38 bool invert;
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39 MultiSetter(bool); //not implemented, disable auto-conversion
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40 public:
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41 MultiSetter(bool invert, bool* p, ...) END_WITH_NULL;
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42
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43 void operator=(bool val);
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44 };
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45
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46 /// Helper class to fill Array with char* when given strings
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47 /// (Errors on empty strings)
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48 class ArrayAdapter {
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49 const char* name;
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50 Array** arrp;
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51 public:
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52 ArrayAdapter(const char* name_, Array*& arr) {
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53 name = name_;
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54 arrp = &arr;
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55 assert(name);
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56 assert(arrp);
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57 }
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58
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59 void push_back(const char* cstr);
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60
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61 void push_back(const std::string& str) {
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62 push_back(str.c_str());
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63 }
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64 };
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65
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66 }
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67
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68 #endif