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Use a switch instead of a global dictionary for primitiveTypeInfo

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Sebastian Wilzbach 2018-01-08 17:13:23 +01:00
parent dfc5fae8f3
commit ee612de84f
1 changed files with 15 additions and 29 deletions
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44
std/format.d
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@ -5425,37 +5425,23 @@ enum Mangle : char
// routine could go away. // routine could go away.
private TypeInfo primitiveTypeInfo(Mangle m) private TypeInfo primitiveTypeInfo(Mangle m)
{ {
// BUG: should fix this in static this() to avoid double checked locking bug enum types = [
__gshared TypeInfo[Mangle] dic; "void", "bool", "byte", "ubyte",
if (!dic.length) "short", "ushort", "int", "uint", "long", "ulong",
"float", "double", "real",
"char", "wchar", "dchar",
"ifloat", "idouble", "ireal",
"cfloat", "cdouble", "creal",
];
switch (m)
{ {
dic = [ static foreach (type; types)
Mangle.Tvoid : typeid(void), {
Mangle.Tbool : typeid(bool), mixin("case Mangle.T"~type~": return typeid("~type~");");
Mangle.Tbyte : typeid(byte), }
Mangle.Tubyte : typeid(ubyte), default:
Mangle.Tshort : typeid(short), return null;
Mangle.Tushort : typeid(ushort),
Mangle.Tint : typeid(int),
Mangle.Tuint : typeid(uint),
Mangle.Tlong : typeid(long),
Mangle.Tulong : typeid(ulong),
Mangle.Tfloat : typeid(float),
Mangle.Tdouble : typeid(double),
Mangle.Treal : typeid(real),
Mangle.Tifloat : typeid(ifloat),
Mangle.Tidouble : typeid(idouble),
Mangle.Tireal : typeid(ireal),
Mangle.Tcfloat : typeid(cfloat),
Mangle.Tcdouble : typeid(cdouble),
Mangle.Tcreal : typeid(creal),
Mangle.Tchar : typeid(char),
Mangle.Twchar : typeid(wchar),
Mangle.Tdchar : typeid(dchar)
];
} }
auto p = m in dic;
return p ? *p : null;
} }
private bool needToSwapEndianess(Char)(const ref FormatSpec!Char f) private bool needToSwapEndianess(Char)(const ref FormatSpec!Char f)