dpq2.conv.from_d_types source code

1 module dpq2.conv.from_d_types;
2 
3 @safe:
4 
5 import dpq2;
6 import std.bitmanip: nativeToBigEndian;
7 import std.traits: isNumeric;
8 
9 @property Value toValue(T)(T v)
10 if(isNumeric!(T))
11 {
12     return Value(v.nativeToBigEndian.dup, detectOidTypeFromNative!T, false, ValueFormat.BINARY);
13 }
14 
15 @property Value toValue(T)(T v, ValueFormat valueFormat = ValueFormat.BINARY) @trusted
16 if(is(T == string))
17 {
18     if(valueFormat == ValueFormat.TEXT) v = v~'\0'; // for prepareArgs only
19 
20     ubyte[] buf = cast(ubyte[]) v;
21 
22     return Value(buf, detectOidTypeFromNative!T, false, valueFormat);
23 }
24 
25 @property Value toValue(T)(T v) @trusted
26 if(is(T == bool))
27 {
28     ubyte[] buf;
29     buf.length = 1;
30     buf[0] = (v ? 1 : 0);
31 
32     return Value(buf, detectOidTypeFromNative!T, false, ValueFormat.BINARY);
33 }
34 
35 unittest
36 {
37     {
38         Value v = toValue(cast(short) 123);
39 
40         assert(v.oidType == OidType.Int2);
41         assert(v.as!short == 123);
42     }
43 
44     {
45         Value v = toValue(-123.456);
46 
47         assert(v.oidType == OidType.Float8);
48         assert(v.as!double == -123.456);
49     }
50 
51     {
52         Value v = toValue("Test string");
53 
54         assert(v.oidType == OidType.Text);
55         assert(v.as!string == "Test string");
56     }
57 
58     {
59         Value t = toValue(true);
60         Value f = toValue(false);
61 
62         assert(t.as!bool == true);
63         assert(f.as!bool == false);
64     }
65 }