Difference between revisions of "Language Specs"

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== Type Coercion==
 
== Type Coercion==
type coersion, with some well defined rules, so you are not limited to the types which the method wants.  Intead, it will take a variety of types.  this is the code for the type conversion.  It defines solidly which types can be converted into which types.
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type coercion, with some well defined rules, so you are not limited to the types which the method wants.  Instead, it will take a variety of types.  This code defines solidly which types may be converted into which types.
 
 
 
  // Integers are convertible to floats
 
  // Integers are convertible to floats
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  addCoercer(Vector3f.class, Color3f.class, new Color3fFromVec3f());
 
  addCoercer(Vector3f.class, Color3f.class, new Color3fFromVec3f());
 
   
 
   
// strings and JSON are bi-directionally convertible
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// strings and JSON are bi-directionally convertible
 
  addCoercer(String.class, JsonNode.class, new JsonNodeFromString());
 
  addCoercer(String.class, JsonNode.class, new JsonNodeFromString());
 
  addCoercer(JsonNode.class, String.class, new StringFromJsonNode());
 
  addCoercer(JsonNode.class, String.class, new StringFromJsonNode());

Latest revision as of 12:03, 25 April 2021

Type Coercion

type coercion, with some well defined rules, so you are not limited to the types which the method wants. Instead, it will take a variety of types. This code defines solidly which types may be converted into which types.

// Integers are convertible to floats
addCoercer(Integer.class, Float.class, new FloatFromInt());
addCoercer(int.class, float.class, new FloatFromInt());
// Floats are convertible to ints, with loss of precision
addCoercer(Float.class, Integer.class, new IntFromFloat());
addCoercer(float.class, int.class, new IntFromFloat());
// Unboxing conversion
addCoercer(Float.class, float.class, new floatFromFloat());
addCoercer(Integer.class, int.class, new intFromInt());
addCoercer(Double.class, double.class, new doubleFromDouble());
addCoercer(Boolean.class, boolean.class, new boolFromBoolean());
// Symbol and strings are bi-directionally interchangeable
addCoercer(String.class, Symbol.class, new SymbolFromString());
addCoercer(Symbol.class, String.class, new StringFromSymbol());
// Object[] arrays convert into the various desired special classes
addCoercer(Object[].class, Vector3f.class, new Vector3fFromObjectArray());
addCoercer(Object[].class, Color3f.class, new Color3fFromObjectArray());
addCoercer(Object[].class, Quat4f.class, new Quat4fFromObjectArray());
// HashMaps convert into the various desired special classes
addCoercer(HashMap.class, Vector3f.class, new Vector3fFromHashMap());
addCoercer(HashMap.class, Color3f.class, new Color3fFromHashMap());
addCoercer(HashMap.class, Quat4f.class, new Quat4fFromHashMap());
// various conversions between the specialized vector classes
addCoercer(Object[].class, Color3f.class, new Color3fFromObjectArray());
addCoercer(Vector4f.class, Quat4f.class, new Quat4fFromVec4f());
addCoercer(Vector3f.class, Color3f.class, new Color3fFromVec3f());

// strings and JSON are bi-directionally convertible
addCoercer(String.class, JsonNode.class, new JsonNodeFromString());
addCoercer(JsonNode.class, String.class, new StringFromJsonNode());
// Strings and UUIDs are bi-directionally convertible
addCoercer(String.class, UUID.class, new UUIDFromString());
addCoercer(UUID.class, String.class, new StringFromUUID());
// nodes can be converted into instanceID's
addCoercer(BaseNodeCored.class, UUID.class, new InstanceIDFromBaseNodeCored());
addCoercer(DynamicPropertyNode.class, UUID.class, new InstanceIDFromBaseNodeCored());
//quat4f can be converted to euler
addCoercer(Quat4f.class, Euler.class, new EulerFromQuat4f());
addCoercer(Vector4f.class, Euler.class, new EulerFromVector4f());
addCoercer(Vector3f.class, Euler.class, new EulerFromVector3f());