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further refactoring and cleaning up of Node.get

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This commit is contained in:
Cameron Ross 2018-04-10 05:37:13 -03:00
parent a35536fe59
commit 7ddea9db39
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GPG key ID: 777897D98DC91C54
1 changed files with 25 additions and 35 deletions
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60
source/dyaml/node.d
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@ -578,13 +578,11 @@ struct Node
/// Must go before others, as even string/int/etc could be stored in a YAMLObject.
static if(!allowed!(Unqual!T)) if(isUserType)
{
auto object = as!(const YAMLObject);
if(object.type is typeid(T))
{
return (cast(inout YAMLContainer!(Unqual!T))(getValue!YAMLObject())).value_;
}
throw new NodeException("Node has unexpected type: " ~ object.type.toString() ~
". Expected: " ~ typeid(T).toString, startMark_);
auto object = getValue!YAMLObject();
enforce(object.type is typeid(T),
new NodeException("Node has unexpected type: " ~ object.type.toString() ~
". Expected: " ~ typeid(T).toString, startMark_));
return (cast(inout YAMLContainer!(Unqual!T))(object)).value_;
}
// If we're getting from a mapping and we're not getting Node.Pair[],
@ -597,7 +595,7 @@ struct Node
{
if(isString){return to!T(getValue!string);}
throw new NodeException("Node stores unexpected type: " ~ type.toString() ~
". Expected: " ~ typeid(T).toString(), startMark_);
". Expected: " ~ typeid(T).toString(), startMark_);
}
else
{
@ -612,36 +610,26 @@ struct Node
}
}
}
else
else static if(isFloatingPoint!T)
{
static if(isFloatingPoint!T)
{
/// Can convert int to float.
if(isInt()) {return to!T(getValue!long);}
else if(isFloat()){return to!T(getValue!real);}
}
else static if(is(Unqual!T == bool))
{
auto temp = getValue!bool;
return to!bool(temp);
}
else static if(isIntegral!T)
{
if(isInt())
{
immutable temp = getValue!long;
enforce(temp >= T.min && temp <= T.max,
new NodeException("Integer value of type " ~ typeid(T).toString() ~
" out of range. Value: " ~ to!string(temp), startMark_));
return temp.to!T;
}
throw new NodeException("Node stores unexpected type: " ~ type.toString() ~
". Expected: " ~ typeid(T).toString, startMark_);
}
/// Can convert int to float.
if(isInt()) {return to!T(getValue!long);}
else if(isFloat()){return to!T(getValue!real);}
else throw new NodeException("Node stores unexpected type: " ~ type.toString() ~
". Expected: " ~ typeid(T).toString, startMark_);
". Expected: " ~ typeid(T).toString, startMark_);
}
assert(false, "This code should never be reached");
else static if(isIntegral!T)
{
enforce(isInt(), new NodeException("Node stores unexpected type: " ~ type.toString() ~
". Expected: " ~ typeid(T).toString, startMark_));
immutable temp = getValue!long;
enforce(temp >= T.min && temp <= T.max,
new NodeException("Integer value of type " ~ typeid(T).toString() ~
" out of range. Value: " ~ to!string(temp), startMark_));
return temp.to!T;
}
else throw new NodeException("Node stores unexpected type: " ~ type.toString() ~
". Expected: " ~ typeid(T).toString, startMark_);
}
/// Automatic type conversion
@safe unittest
@ -655,6 +643,8 @@ struct Node
@safe unittest
{
assertThrown!NodeException(Node("42").get!int);
assertThrown!NodeException(Node("42").get!double);
assertThrown!NodeException(Node(long.max).get!ushort);
Node(YAMLNull()).get!YAMLNull;
}
@safe unittest