const char *GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage);
/// @}
-/// \brief Get the tag number associated with a tag string.
+/// \defgroup DwarfConstantsParsing Dwarf constants parsing functions
+///
+/// These functions map their strings back to the corresponding enumeration
+/// value or return 0 if there is none. As an exception, \a getTag() returns
+/// \a DW_TAG_invalid on invalid input.
+///
+/// @{
unsigned getTag(StringRef TagString);
+unsigned getLanguage(StringRef LanguageString);
+/// @}
/// \brief Returns the symbolic string representing Val when used as a value
/// for attribute Attr.
}
}
+unsigned llvm::dwarf::getLanguage(StringRef LanguageString) {
+ return StringSwitch<unsigned>(LanguageString)
+#define HANDLE_DW_LANG(ID, NAME) .Case("DW_LANG_" #NAME, DW_LANG_##NAME)
+#include "llvm/Support/Dwarf.def"
+ .Default(0);
+}
+
const char *llvm::dwarf::CaseString(unsigned Case) {
switch (Case) {
case DW_ID_case_sensitive: return "DW_ID_case_sensitive";
EXPECT_EQ(nullptr, LanguageString(DW_LANG_hi_user));
}
+TEST(DwarfTest, getLanguage) {
+ // A couple of valid languages.
+ EXPECT_EQ(DW_LANG_C89, getLanguage("DW_LANG_C89"));
+ EXPECT_EQ(DW_LANG_C_plus_plus_11, getLanguage("DW_LANG_C_plus_plus_11"));
+ EXPECT_EQ(DW_LANG_OCaml, getLanguage("DW_LANG_OCaml"));
+ EXPECT_EQ(DW_LANG_Mips_Assembler, getLanguage("DW_LANG_Mips_Assembler"));
+
+ // Invalid languages.
+ EXPECT_EQ(0u, getLanguage("DW_LANG_invalid"));
+ EXPECT_EQ(0u, getLanguage("DW_TAG_array_type"));
+ EXPECT_EQ(0u, getLanguage("something else"));
+
+ // Language range markers should not be recognized.
+ EXPECT_EQ(0u, getLanguage("DW_LANG_lo_user"));
+ EXPECT_EQ(0u, getLanguage("DW_LANG_hi_user"));
+}
+
} // end namespace