Language Specs

From Constructive Labs
Revision as of 12:03, 25 April 2021 by Gmeader (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

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());