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comparison d2/qtd/Marshal.d @ 350:31520b2c0b3c

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Removed dependency on parent trait and stringof
author Max Samukha <maxter@spambox.com>
date Thu, 20 May 2010 15:49:08 +0300
parents 925386e0e780
children 9784459f0750
comparison
equal deleted inserted replaced
349:925386e0e780 350:31520b2c0b3c
1 module qtd.Marshal; 1 module qtd.Marshal;
2 2
3 import std.traits; 3 import
4 std.traits,
5 qtd.meta.Compiletime,
6 qtd.ctfe.Format;
4 7
5 import qtd.Meta; 8 import std.string : startsWith;
6 9
7 template isQObjectType(T) // is a QObject type that belongs to the library 10
11 template isQObjectType(T)
8 { 12 {
9 enum isQObjectType = is(T.__isQObjectType); 13 enum isQObjectType = is(T.__isQObjectType);
10 } 14 }
11 15
12 template isObjectType(T) // is a Qt Object type that belongs to the library 16 template isObjectType(T)
13 { 17 {
14 enum isObjectType = is(T.__isObjectType); 18 enum isObjectType = is(T.__isObjectType);
15 } 19 }
16 20
17 template isValueType(T) // is a Qt Value type that belongs to the library 21 template isValueType(T)
18 { 22 {
19 enum isValueType = is(T.__isValueType); 23 enum isValueType = is(T.__isValueType);
20 } 24 }
21 25
22 template isQtType(T) 26 template isQtType(T)
39 enum isStringType = is(T == string); 43 enum isStringType = is(T == string);
40 } 44 }
41 45
42 template isQList(T) 46 template isQList(T)
43 { 47 {
44 enum isQList = ctfeStartsWith(Unqual!(T).stringof, "QList!"); 48 enum isQList = startsWith(Unqual!(T).stringof, "QList!");
45 } 49 }
46 50
47 // returns full name of enum: 51 // returns full name of enum:
48 // for Qt enum it is in the form of QPaintDevice::PaintDeviceMetric 52 // for Qt enum it is in the form of QPaintDevice::PaintDeviceMetric
49 // for pure D enums it is Foo.Bar 53 // for pure D enums it is Foo.Bar
56 else 60 else
57 enum enumFullName = qualifiedDName!T; 61 enum enumFullName = qualifiedDName!T;
58 } 62 }
59 else 63 else
60 enum enumFullName = qualifiedDName!T; 64 enum enumFullName = qualifiedDName!T;
61
62 } 65 }
63 66
64 // converts an argumnent from C++ to D in qt_metacall
65 string metaCallArgument(T)(string ptr)
66 {
67 static if (isQObjectType!T || isObjectType!T)
68 return T.stringof ~ ".__getObject(*cast(void**)(" ~ ptr ~ "))";
69 else static if (isValueType!T)
70 return "new " ~ T.stringof ~ "(" ~ T.stringof ~ ".__constructNativeCopy(" ~ ptr ~ "))";
71 else static if (isNativeType!T)
72 return "*(cast(" ~ T.stringof ~ "*)" ~ ptr ~ ")";
73 else static if (isStringType!T)
74 return "QStringUtil.toNativeString(" ~ ptr ~ ")";
75 else static if (is(T == enum))
76 return "*(cast(" ~ qualifiedDName!T ~ "*)" ~ ptr ~ ")";
77 else
78 return "*(cast(" ~ T.stringof ~ "*)" ~ ptr ~ ")";
79 //res = T.stringof;
80 }
81 67
82 // converts a D argument type to C++ for registering in Qt meta system 68 // converts a D argument type to C++ for registering in Qt meta system
83 string qtDeclArg(T)() 69 string qtDeclArg(T)()
84 { 70 {
85 static if (isQObjectType!T || isObjectType!T) 71 static if (isQObjectType!T || isObjectType!T)
102 return Unqual!T.stringof; 88 return Unqual!T.stringof;
103 else 89 else
104 return T.stringof; 90 return T.stringof;
105 } 91 }
106 92
107 // converts an argument from D to C++ in a signal emitter 93 /**
108 string convertSignalArgument(T)(string arg) 94 Generates C++-to-D conversion code for the
95 argument argIndex.
96 */
97 string generateConvToD(uint argIndex)
109 { 98 {
110 static if (isQObjectType!T || isObjectType!T) 99 string res = format_ctfe(q{
111 return arg ~ " ? " "&" ~ arg ~ ".__nativeId : cast(void**) &" ~ arg; // since it is a pointer type check arg for null 100
112 else static if (isValueType!T) 101 static if (isQObjectType!(Args[${0}]) || isObjectType!(Args[${0}]))
113 return arg ~ ".__nativeId"; 102 auto _out${0} = Args[${0}].__getObject(*cast(void**)_a[${0}]);
114 else static if (isStringType!T) 103 else static if (isValueType!(Args[${0}]))
115 return "&_qt" ~ arg; 104 {
116 else static if (isNativeType!T) 105 // COMPILER BUG: 'new' chokes on Args[argIndex], hence the alias
117 return "&" ~ arg; 106 alias Args[${0}] Args${0};
118 else 107 auto _out${0} = new Args${0}(Args[${0}].__constructNativeCopy(_a[${0}]));
119 return "&" ~ arg; 108 }
109 else static if (isStringType!(Args[${0}]))
110 auto _out${0} = QStringUtil.toNativeString(_a[${0}]);
111 else
112 {
113 auto _out${0} = *cast(Args[${0}]*)_a[${0}];
114 }
115
116 }, argIndex);
117
118 return res;
120 } 119 }
121 120
122 string prepareSignalArguments(Args...)()
123 {
124 string res;
125 foreach(i, _; Args)
126 static if (isStringType!(Args[i]))
127 res ~= "auto _qt_t" ~ __toString(i) ~ " = QString(_t" ~ __toString(i) ~ ");\n";
128 return res;
129 }