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Use a typed enum instead of 'unsigned char' for packed field. NFC.

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This makes it easier to debug Twine as the 'Kind' fields now show their enum values in lldb and not escaped characters.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223178 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Pete Cooper 2014-12-02 23:34:23 +00:00
parent 1dad6937c5
commit dfc69d2c27
1 changed files with 5 additions and 7 deletions
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12
include/llvm/ADT/Twine.h
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@ -80,7 +80,7 @@ namespace llvm {
/// StringRef) codegen as desired.
class Twine {
/// NodeKind - Represent the type of an argument.
enum NodeKind {
enum NodeKind : unsigned char {
/// An empty string; the result of concatenating anything with it is also
/// empty.
NullKind,
@ -153,12 +153,10 @@ namespace llvm {
/// RHS - The suffix in the concatenation, which may be uninitialized for
/// Null or Empty kinds.
Child RHS;
// enums stored as unsigned chars to save on space while some compilers
// don't support specifying the backing type for an enum
/// LHSKind - The NodeKind of the left hand side, \see getLHSKind().
unsigned char LHSKind;
NodeKind LHSKind;
/// RHSKind - The NodeKind of the right hand side, \see getRHSKind().
unsigned char RHSKind;
NodeKind RHSKind;
private:
/// Construct a nullary twine; the kind must be NullKind or EmptyKind.
@ -238,10 +236,10 @@ namespace llvm {
}
/// getLHSKind - Get the NodeKind of the left-hand side.
NodeKind getLHSKind() const { return (NodeKind) LHSKind; }
NodeKind getLHSKind() const { return LHSKind; }
/// getRHSKind - Get the NodeKind of the right-hand side.
NodeKind getRHSKind() const { return (NodeKind) RHSKind; }
NodeKind getRHSKind() const { return RHSKind; }
/// printOneChild - Print one child from a twine.
void printOneChild(raw_ostream &OS, Child Ptr, NodeKind Kind) const;