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b3d87205ad
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)
68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
#ifndef LDC_CL_HELPERS_H
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#define LDC_CL_HELPERS_H
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#include <string>
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/Compiler.h"
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struct Array;
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namespace opts {
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namespace cl = llvm::cl;
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/// Helper class for fancier options
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class FlagParser : public cl::parser<bool> {
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std::vector<std::pair<std::string, bool> > switches;
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public:
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template <class Opt>
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void initialize(Opt &O) {
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assert(!(O.getMiscFlags() & cl::AllowInverse)
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&& "FlagParser doesn't support redundant AllowInverse flag");
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std::string Name = O.ArgStr;
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switches.push_back(make_pair("enable-" + Name, true));
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switches.push_back(make_pair("disable-" + Name, false));
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// Replace <foo> with -enable-<foo>
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O.ArgStr = switches[0].first.c_str();
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}
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bool parse(cl::Option &O, const char *ArgName, const std::string &ArgValue, bool &Val);
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void getExtraOptionNames(std::vector<const char*> &Names);
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};
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/// Helper class for options that set multiple flags
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class MultiSetter {
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std::vector<bool*> locations;
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bool invert;
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MultiSetter(bool); //not implemented, disable auto-conversion
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public:
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MultiSetter(bool invert, bool* p, ...) END_WITH_NULL;
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void operator=(bool val);
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};
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/// Helper class to fill Array with char* when given strings
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/// (Errors on empty strings)
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class ArrayAdapter {
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const char* name;
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Array** arrp;
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public:
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ArrayAdapter(const char* name_, Array*& arr) {
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name = name_;
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arrp = &arr;
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assert(name);
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assert(arrp);
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}
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void push_back(const char* cstr);
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void push_back(const std::string& str) {
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push_back(str.c_str());
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}
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};
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}
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#endif
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