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annotate gen/cl_helpers.h @ 1351:8d501abecd24

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Initial (but disabled) fix for ticket #294 , the actual part that fixes the bug is in a #if 0 block as I'm afraid it will cause regressions. I'm most likely not going to be around tonight, and maybe not tomorrow as well, so I'm pushing it in case someone wants to run some serious testing/investigate the problem noted in llvmhelpers.cpp : realignOffset .
author Tomas Lindquist Olsen <tomas.l.olsen gmail com>
date Thu, 14 May 2009 17:20:17 +0200
parents 3171f67ad006
children 40bd4a0d4870
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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 std::string Name = O.ArgStr;
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21 switches.push_back(make_pair("enable-" + Name, true));
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22 switches.push_back(make_pair("disable-" + Name, false));
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23 // Replace <foo> with -enable-<foo>
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24 O.ArgStr = switches[0].first.c_str();
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25 }
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26
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27 bool parse(cl::Option &O, const char *ArgName, const std::string &ArgValue, bool &Val);
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28
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29 void getExtraOptionNames(std::vector<const char*> &Names);
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30 };
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31
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32 /// Helper class for options that set multiple flags
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33 class MultiSetter {
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34 std::vector<bool*> locations;
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35 bool invert;
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36 MultiSetter(bool); //not implemented, disable auto-conversion
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37 public:
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38 MultiSetter(bool invert, bool* p, ...) END_WITH_NULL;
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39
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40 void operator=(bool val);
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41 };
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42
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43 /// Helper class to fill Array with char* when given strings
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44 /// (Errors on empty strings)
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45 class ArrayAdapter {
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46 const char* name;
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47 Array** arrp;
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48 public:
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49 ArrayAdapter(const char* name_, Array*& arr) {
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50 name = name_;
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51 arrp = &arr;
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52 assert(name);
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53 assert(arrp);
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54 }
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55
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56 void push_back(const char* cstr);
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57
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58 void push_back(const std::string& str) {
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59 push_back(str.c_str());
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60 }
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61 };
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62
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63 /// Helper class to allow use of a parser<bool> with BoolOrDefault
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64 class BoolOrDefaultAdapter {
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65 cl::boolOrDefault value;
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66 public:
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67 operator cl::boolOrDefault() {
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68 return value;
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69 }
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70
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71 void operator=(cl::boolOrDefault val) {
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72 value = val;
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73 }
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74
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75 void operator=(bool val) {
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76 *this = (val ? cl::BOU_TRUE : cl::BOU_FALSE);
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77 }
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78 };
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79 }
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80
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81 #endif