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annotate gen/cl_helpers.cpp @ 986:a8cb25d478c4

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Use LLVM-style command line (instead of DMD-style) Note: For a backward compatible interface, use the new bin/ldmd script. It supports all old options while passing on anything it doesn't recognize. Some changes caused by this: * -debug and -version are now -d-debug and -d-version due to a conflict with standard LLVM options. * All "flag" options now allow an optional =true/=1/=false/=0 suffix. * Some "hidden debug switches" starting with "--" were renamed because LLVM doesn't care about the number of dashes, so they were conflicting with other options (such as -c). The new versions start with "-hidden-debug-" instead of "--" * --help works, but has a non-zero exit code. This breaks some Tango scripts which use it to test for compiler existence. See tango.patch. Some changes not (directly) caused by this; * (-enable/-disable)-FOO options are now available for pre- and postconditions. * -march is used instead of -m (like other LLVM programs), but -m is an alias for it. * -defaultlib, -debuglib, -d-debug and -d-version allow comma-separated values. The effect should be identical to specifying the same option multiple times. I decided against allowing these for some other options because paths might contain commas on some systems. * -fPIC is removed in favor of the standard LLVM option -relocation-model=pic Bug: * If -run is specified as the last argument in DFLAGS, no error is generated. (Not very serious IMHO)
author Frits van Bommel <fvbommel wxs.nl>
date Wed, 25 Feb 2009 17:34:51 +0100
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children 40d7f9b7357f
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1 #include "gen/cl_helpers.h"
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2
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3 #include "dmd/root.h"
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4 #include "dmd/mem.h"
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5
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6 #include <cctype> // isupper, tolower
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7 #include <algorithm>
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8 #include <utility>
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9 #include <stdarg.h>
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10
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11 namespace opts {
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12
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13 // Helper function
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14 static char toLower(char c) {
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15 if (isupper(c))
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16 return tolower(c);
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17 return c;
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18 }
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19
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20 bool FlagParser::parse(cl::Option &O, const char *ArgName, const std::string &Arg, bool &Val) {
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21 // Make a std::string out of it to make comparisons easier
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22 // (and avoid repeated conversion)
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23 std::string argname = ArgName;
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24
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25 typedef std::vector<std::pair<std::string, bool> >::iterator It;
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26 for (It I = switches.begin(), E = switches.end(); I != E; ++I) {
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27 std::string name = I->first;
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28 if (name == argname
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29 || (name.length() < argname.length()
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30 && argname.substr(0, name.length()) == name
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31 && argname[name.length()] == '=')) {
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32
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33 if (!cl::parser<bool>::parse(O, ArgName, Arg, Val)) {
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34 Val = (Val == I->second);
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35 return false;
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36 }
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37 // Invalid option value
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38 break;
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39 }
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40 }
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41 return true;
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42 }
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43
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44 void FlagParser::getExtraOptionNames(std::vector<const char*> &Names) {
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45 typedef std::vector<std::pair<std::string, bool> >::iterator It;
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46 for (It I = switches.begin() + 1, E = switches.end(); I != E; ++I) {
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47 Names.push_back(I->first.c_str());
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48 }
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49 }
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50
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51
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52 MultiSetter::MultiSetter(bool invert, bool* p, ...) {
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53 this->invert = invert;
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54 if (p) {
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55 locations.push_back(p);
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56 va_list va;
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57 va_start(va, p);
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58 while (p = va_arg(va, bool*)) {
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59 locations.push_back(p);
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60 }
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61 }
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62 }
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63
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64 void MultiSetter::operator=(bool val) {
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65 typedef std::vector<bool*>::iterator It;
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66 for (It I = locations.begin(), E = locations.end(); I != E; ++I) {
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67 **I = (val != invert);
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68 }
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69 }
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70
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71
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72 void ArrayAdapter::push_back(const char* cstr) {
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73 if (!cstr || !*cstr)
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74 error("Expected argument to '-%s'", name);
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75
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76 if (!*arrp)
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77 *arrp = new Array;
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78 (*arrp)->push(mem.strdup(cstr));
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79 }
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80
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81 } // namespace opts