Move gen/cl_helpers.* to driver/ (#4191)

driver/cl_helpers.cpp

@@ -0,0 +1,73 @@
+//===-- cl_helpers.cpp ----------------------------------------------------===//
+//
+//                         LDC – the LLVM D compiler
+//
+// This file is distributed under the BSD-style LDC license. See the LICENSE
+// file for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "driver/cl_helpers.h"
+
+#include "dmd/errors.h"
+#include "dmd/ldcbindings.h"
+#include "dmd/root/rmem.h"
+#include <algorithm>
+#include <cctype> // isupper, tolower
+#include <stdarg.h>
+#include <utility>
+
+namespace opts {
+
+DString dupPathString(llvm::StringRef src) {
+  const auto length = src.size();
+  char *r = static_cast<char *>(mem.xmalloc(length + 1));
+  memcpy(r, src.data(), length);
+#if _WIN32
+  std::replace(r, r + length, '/', '\\');
+#endif
+  r[length] = '\0';
+  return {length, r};
+}
+
+DString fromPathString(const cl::opt<std::string> &src) {
+  if (src.getNumOccurrences() != 0) {
+    if (src.empty()) {
+      error(Loc(), "Expected argument to '-%s'", src.ArgStr.str().c_str());
+    }
+    return dupPathString(src);
+  }
+  return {0, nullptr};
+}
+
+MultiSetter::MultiSetter(bool invert, CHECKENABLE *p, ...) {
+  this->invert = invert;
+  if (p) {
+    locations.push_back(p);
+    va_list va;
+    va_start(va, p);
+    while ((p = va_arg(va, CHECKENABLE *))) {
+      locations.push_back(p);
+    }
+    va_end(va);
+  }
+}
+
+void MultiSetter::operator=(bool val) {
+  for (auto &l : locations) {
+    *l = (val != invert) ? CHECKENABLEon : CHECKENABLEoff;
+  }
+}
+
+void StringsAdapter::push_back(const char *cstr) {
+  if (!cstr || !*cstr) {
+    error(Loc(), "Expected argument to '-%s'", name);
+  }
+
+  if (!*arrp) {
+    *arrp = createStrings();
+  }
+  (*arrp)->push(mem.xstrdup(cstr));
+}
+
+} // namespace opts