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Merge pull request #142 from Herringway/constructor-examples

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convert dyaml.constructor unittests into examples
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BBasile 2018-05-31 10:04:41 +02:00 committed by GitHub
parent 2f63fb6988 2f723b6480
commit eec7aa3bba
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1 changed files with 127 additions and 100 deletions
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227
source/dyaml/constructor.d
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@ -159,6 +159,7 @@ final class Constructor
return MyStruct(to!int(parts[0]), to!int(parts[1]), to!int(parts[2])); return MyStruct(to!int(parts[0]), to!int(parts[1]), to!int(parts[2]));
} }
import dyaml.loader : Loader;
auto loader = Loader.fromString("!mystruct 12:34:56"); auto loader = Loader.fromString("!mystruct 12:34:56");
auto constructor = new Constructor; auto constructor = new Constructor;
constructor.addConstructorScalar("!mystruct", &constructMyStructScalar); constructor.addConstructorScalar("!mystruct", &constructMyStructScalar);
@ -178,34 +179,37 @@ final class Constructor
(*delegates!(Node[]))[t] = deleg; (*delegates!(Node[]))[t] = deleg;
} }
/// ///
@safe unittest { @safe unittest
static struct MyStruct {
{ static struct MyStruct
int x, y, z; {
int x, y, z;
//Any D:YAML type must have a custom opCmp operator. //Any D:YAML type must have a custom opCmp operator.
//This is used for ordering in mappings. //This is used for ordering in mappings.
const int opCmp(ref const MyStruct s) const int opCmp(ref const MyStruct s)
{ {
if(x != s.x){return x - s.x;} if(x != s.x){return x - s.x;}
if(y != s.y){return y - s.y;} if(y != s.y){return y - s.y;}
if(z != s.z){return z - s.z;} if(z != s.z){return z - s.z;}
return 0; return 0;
} }
} }
static MyStruct constructMyStructSequence(ref Node node) @safe static MyStruct constructMyStructSequence(ref Node node) @safe
{ {
//node is guaranteed to be sequence. //node is guaranteed to be sequence.
//!mystruct [x, y, z] //!mystruct [x, y, z]
return MyStruct(node[0].as!int, node[1].as!int, node[2].as!int); return MyStruct(node[0].as!int, node[1].as!int, node[2].as!int);
} }
auto loader = Loader.fromString("!mystruct [1,2,3]");
auto constructor = new Constructor; import dyaml.loader : Loader;
constructor.addConstructorSequence("!mystruct", &constructMyStructSequence); auto loader = Loader.fromString("!mystruct [1,2,3]");
loader.constructor = constructor; auto constructor = new Constructor;
Node node = loader.load(); constructor.addConstructorSequence("!mystruct", &constructMyStructSequence);
assert(node.get!MyStruct == MyStruct(1, 2, 3)); loader.constructor = constructor;
Node node = loader.load();
assert(node.get!MyStruct == MyStruct(1, 2, 3));
} }
/** Add a constructor function from a mapping. /** Add a constructor function from a mapping.
@ -241,6 +245,8 @@ final class Constructor
//!mystruct {"x": x, "y": y, "z": z} //!mystruct {"x": x, "y": y, "z": z}
return MyStruct(node["x"].as!int, node["y"].as!int, node["z"].as!int); return MyStruct(node["x"].as!int, node["y"].as!int, node["z"].as!int);
} }
import dyaml.loader : Loader;
auto loader = Loader.fromString(`!mystruct {"x": 11, "y": 22, "z": 33}`); auto loader = Loader.fromString(`!mystruct {"x": 11, "y": 22, "z": 33}`);
auto constructor = new Constructor; auto constructor = new Constructor;
constructor.addConstructorMapping("!mystruct", &constructMyStructMapping); constructor.addConstructorMapping("!mystruct", &constructMyStructMapping);
@ -332,6 +338,101 @@ final class Constructor
} }
} }
///Construct a struct from a scalar
@safe unittest
{
static struct MyStruct
{
int x, y, z;
int opCmp(ref const MyStruct s) const pure @safe nothrow
{
if(x != s.x){return x - s.x;}
if(y != s.y){return y - s.y;}
if(z != s.z){return z - s.z;}
return 0;
}
}
static MyStruct constructMyStructScalar(ref Node node) @safe
{
// Guaranteed to be string as we construct from scalar.
auto parts = node.as!string().split(":");
return MyStruct(to!int(parts[0]), to!int(parts[1]), to!int(parts[2]));
}
import dyaml.loader : Loader;
string data = "!mystruct 1:2:3";
auto loader = Loader.fromString(data);
auto constructor = new Constructor;
constructor.addConstructorScalar("!mystruct", &constructMyStructScalar);
loader.constructor = constructor;
Node node = loader.load();
assert(node.as!MyStruct == MyStruct(1, 2, 3));
}
///Construct a struct from a sequence
@safe unittest
{
static struct MyStruct
{
int x, y, z;
int opCmp(ref const MyStruct s) const pure @safe nothrow
{
if(x != s.x){return x - s.x;}
if(y != s.y){return y - s.y;}
if(z != s.z){return z - s.z;}
return 0;
}
}
static MyStruct constructMyStructSequence(ref Node node) @safe
{
// node is guaranteed to be sequence.
return MyStruct(node[0].as!int, node[1].as!int, node[2].as!int);
}
import dyaml.loader : Loader;
string data = "!mystruct [1, 2, 3]";
auto loader = Loader.fromString(data);
auto constructor = new Constructor;
constructor.addConstructorSequence("!mystruct", &constructMyStructSequence);
loader.constructor = constructor;
Node node = loader.load();
assert(node.as!MyStruct == MyStruct(1, 2, 3));
}
///Construct a struct from a mapping
@safe unittest
{
static struct MyStruct
{
int x, y, z;
int opCmp(ref const MyStruct s) const pure @safe nothrow
{
if(x != s.x){return x - s.x;}
if(y != s.y){return y - s.y;}
if(z != s.z){return z - s.z;}
return 0;
}
}
static MyStruct constructMyStructMapping(ref Node node) @safe
{
// node is guaranteed to be mapping.
return MyStruct(node["x"].as!int, node["y"].as!int, node["z"].as!int);
}
import dyaml.loader : Loader;
string data = "!mystruct {x: 1, y: 2, z: 3}";
auto loader = Loader.fromString(data);
auto constructor = new Constructor;
constructor.addConstructorMapping("!mystruct", &constructMyStructMapping);
loader.constructor = constructor;
Node node = loader.load();
assert(node.as!MyStruct == MyStruct(1, 2, 3));
}
/// Construct a _null _node. /// Construct a _null _node.
YAMLNull constructNull(ref Node node) @safe pure nothrow @nogc YAMLNull constructNull(ref Node node) @safe pure nothrow @nogc
@ -795,77 +896,3 @@ Node.Pair[] constructMap(ref Node node) @safe
} }
return pairs; return pairs;
} }
// Unittests
private:
import dyaml.loader;
struct MyStruct
{
int x, y, z;
int opCmp(ref const MyStruct s) const pure @safe nothrow
{
if(x != s.x){return x - s.x;}
if(y != s.y){return y - s.y;}
if(z != s.z){return z - s.z;}
return 0;
}
}
MyStruct constructMyStructScalar(ref Node node) @safe
{
// Guaranteed to be string as we construct from scalar.
auto parts = node.as!string().split(":");
return MyStruct(to!int(parts[0]), to!int(parts[1]), to!int(parts[2]));
}
MyStruct constructMyStructSequence(ref Node node) @safe
{
// node is guaranteed to be sequence.
return MyStruct(node[0].as!int, node[1].as!int, node[2].as!int);
}
MyStruct constructMyStructMapping(ref Node node) @safe
{
// node is guaranteed to be mapping.
return MyStruct(node["x"].as!int, node["y"].as!int, node["z"].as!int);
}
@safe unittest
{
string data = "!mystruct 1:2:3";
auto loader = Loader.fromString(data);
auto constructor = new Constructor;
constructor.addConstructorScalar("!mystruct", &constructMyStructScalar);
loader.constructor = constructor;
Node node = loader.load();
assert(node.as!MyStruct == MyStruct(1, 2, 3));
}
@safe unittest
{
string data = "!mystruct [1, 2, 3]";
auto loader = Loader.fromString(data);
auto constructor = new Constructor;
constructor.addConstructorSequence("!mystruct", &constructMyStructSequence);
loader.constructor = constructor;
Node node = loader.load();
assert(node.as!MyStruct == MyStruct(1, 2, 3));
}
@safe unittest
{
string data = "!mystruct {x: 1, y: 2, z: 3}";
auto loader = Loader.fromString(data);
auto constructor = new Constructor;
constructor.addConstructorMapping("!mystruct", &constructMyStructMapping);
loader.constructor = constructor;
Node node = loader.load();
assert(node.as!MyStruct == MyStruct(1, 2, 3));
}