24 assert_eq( sprintf!"%s == %04d"("1+2", 3), "1+2 == 0003" ); 24 assert_eq( sprintf!"%s == %04d"("1+2", 3), "1+2 == 0003" ); 25 assert_eq( sprintf!"%2$s == %1$s"("1+2", 5, 8), "5 == 1+2" ); 25 assert_eq( sprintf!"%2$s == %1$s"("1+2", 5, 8), "5 == 1+2" ); 26 assert_throw!Error( sprintf!"%s%s"(1) ); 26 assert_throw!Error( sprintf!"%s%s"(1) ); 27 } 27 } 28 28 29 /// Create an exception with automatically completed filename and lineno informa 29 /// Create an exception with automatically completed filename and lineno informa 30 30 31 auto genex(ExceptionType, string fn=__FILE__, int ln=__LINE__, T...)(T params) | 31 ExceptionType genex(ExceptionType, string fn=__FILE__, int ln=__LINE__, T...)(T 32 { 32 { 33 static if( T.length > 0 && is(T[$-1] : Throwable) ) 33 static if( T.length > 0 && is(T[$-1] : Throwable) ) 34 return new ExceptionType(params[0..$-1], fn, ln, params[$-1]); 34 return new ExceptionType(params[0..$-1], fn, ln, params[$-1]); 35 else 35 else 36 return new ExceptionType(params, fn, ln); 36 return new ExceptionType(params, fn, ln); 37 } 37 } 38 38 ................................................................................................................................................................................ 44 } 44 } 45 45 46 /// Mixing-in the bean constructor for a class 46 /// Mixing-in the bean constructor for a class 47 47 48 /*mixin*/ 48 /*mixin*/ 49 template SimpleConstructor() 49 template SimpleConstructor() 50 { 50 { > 51 /// member-by-member constructor 51 static if( is(typeof(super) == Object) || super.tupleof.length==0 ) 52 static if( is(typeof(super) == Object) || super.tupleof.length==0 ) 52 this( typeof(this.tupleof) params ) 53 this( typeof(this.tupleof) params ) 53 { 54 { 54 static if(this.tupleof.length>0) 55 static if(this.tupleof.length>0) 55 this.tupleof = params; 56 this.tupleof = params; 56 } 57 } 57 else 58 else ................................................................................................................................................................................ 89 assert_eq( (new Tomp(1,"foo",2.5)).z, 2.5 ); 90 assert_eq( (new Tomp(1,"foo",2.5)).z, 2.5 ); 90 assert( !__traits(compiles, new Tomp(3.14)) ); 91 assert( !__traits(compiles, new Tomp(3.14)) ); 91 92 92 // shiyo- desu. Don't use in this way. 93 // shiyo- desu. Don't use in this way. 93 // Tamp tries to call new Tomp(real) (because it only sees Tomp's memb 94 // Tamp tries to call new Tomp(real) (because it only sees Tomp's memb 94 // but it fails because Tomp takes (int,string,real). 95 // but it fails because Tomp takes (int,string,real). 95 assert( !__traits(compiles, { 96 assert( !__traits(compiles, { 96 class Tamp : Tomp < 97 { < 98 mixin SimpleConstructor; | 97 class Tamp : Tomp { mixin SimpleConstructor; } 99 } < 100 }) ); 98 }) ); 101 } 99 } 102 100 103 /// Mixing-in the MOST-DERIVED-member-wise comparator for a class 101 /// Mixing-in the MOST-DERIVED-member-wise comparator for a class 104 102 105 /*mixin*/ 103 /*mixin*/ 106 template SimpleCompare() 104 template SimpleCompare() 107 { 105 { 108 override bool opEquals(Object rhs_) const | 106 override bool opEquals(Object rhs_) const /// member-by-member equality 109 { 107 { 110 if( auto rhs = cast(typeof(this))rhs_ ) 108 if( auto rhs = cast(typeof(this))rhs_ ) 111 { 109 { 112 foreach(i,_; this.tupleof) 110 foreach(i,_; this.tupleof) 113 if( this.tupleof[i] != rhs.tupleof[i] ) 111 if( this.tupleof[i] != rhs.tupleof[i] ) 114 return false; 112 return false; 115 return true; 113 return true; 116 } 114 } 117 assert(false, sprintf!"Cannot compare %s with %s"(typeid(this), 115 assert(false, sprintf!"Cannot compare %s with %s"(typeid(this), 118 } 116 } 119 117 120 override hash_t toHash() const | 118 override hash_t toHash() const /// member-by-member hash 121 { 119 { 122 hash_t h = 0; 120 hash_t h = 0; 123 foreach(mem; this.tupleof) 121 foreach(mem; this.tupleof) 124 h += typeid(mem).getHash(&mem); 122 h += typeid(mem).getHash(&mem); 125 return h; 123 return h; 126 } 124 } 127 125 128 override int opCmp(Object rhs_) const | 126 override int opCmp(Object rhs_) const /// member-by-member compare 129 { 127 { 130 if( auto rhs = cast(typeof(this))rhs_ ) 128 if( auto rhs = cast(typeof(this))rhs_ ) 131 { 129 { 132 foreach(i,_; this.tupleof) 130 foreach(i,_; this.tupleof) 133 if(auto c = typeid(_).compare(&this.tupleof[i],& 131 if(auto c = typeid(_).compare(&this.tupleof[i],& 134 return c; 132 return c; 135 return 0; 133 return 0; ................................................................................................................................................................................ 167 } 165 } 168 166 169 /// Mixing-in a simple toString method 167 /// Mixing-in a simple toString method 170 168 171 /*mixin*/ 169 /*mixin*/ 172 template SimpleToString() 170 template SimpleToString() 173 { 171 { > 172 /// member-by-member toString 174 override string toString() 173 override string toString() 175 { 174 { 176 string str = sprintf!"%s("(typeof(this).stringof); 175 string str = sprintf!"%s("(typeof(this).stringof); 177 foreach(i,mem; this.tupleof) 176 foreach(i,mem; this.tupleof) 178 { 177 { 179 if(i) str ~= ","; 178 if(i) str ~= ","; 180 static if( is(typeof(mem) == std.bigint.BigInt) ) 179 static if( is(typeof(mem) == std.bigint.BigInt) )