Move constructors out-of-line and flesh out their documentation. No
functionality changed. This is in preparation for some refactoring of
how this class behaves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150941 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/Triple.cpp b/lib/Support/Triple.cpp
index 9621dd3..24ead35 100644
--- a/lib/Support/Triple.cpp
+++ b/lib/Support/Triple.cpp
@@ -215,8 +215,6 @@
.Default(NULL);
}
-//
-
Triple::ArchType Triple::ParseArch(StringRef ArchName) {
return StringSwitch<ArchType>(ArchName)
.Cases("i386", "i486", "i586", "i686", x86)
@@ -304,6 +302,38 @@
assert(isInitialized() && "Failed to initialize!");
}
+/// \brief Construct a triple from the string representation provided.
+///
+/// This doesn't actually parse the string representation eagerly. Instead it
+/// stores it, and tracks the fact that it hasn't been parsed. The first time
+/// any of the structural queries are made, the string is parsed and the
+/// results cached in various members.
+Triple::Triple(const Twine &Str) : Data(Str.str()), Arch(InvalidArch) {}
+
+/// \brief Construct a triple from string representations of the architecture,
+/// vendor, and OS.
+///
+/// This doesn't actually use these already distinct strings to setup the
+/// triple information. Instead it joins them into a canonical form of a triple
+/// string, and lazily parses it on use.
+Triple::Triple(const Twine &ArchStr, const Twine &VendorStr, const Twine &OSStr)
+ : Data((ArchStr + Twine('-') + VendorStr + Twine('-') + OSStr).str()),
+ Arch(InvalidArch) {
+}
+
+/// \brief Construct a triple from string representations of the architecture,
+/// vendor, OS, and environment.
+///
+/// This doesn't actually use these already distinct strings to setup the
+/// triple information. Instead it joins them into a canonical form of a triple
+/// string, and lazily parses it on use.
+Triple::Triple(const Twine &ArchStr, const Twine &VendorStr, const Twine &OSStr,
+ const Twine &EnvironmentStr)
+ : Data((ArchStr + Twine('-') + VendorStr + Twine('-') + OSStr + Twine('-') +
+ EnvironmentStr).str()),
+ Arch(InvalidArch) {
+}
+
std::string Triple::normalize(StringRef Str) {
// Parse into components.
SmallVector<StringRef, 4> Components;