Deriver
Attributes
- Source
- Deriver.scala
- Graph
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- Supertypes
- Known subtypes
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class ConfigDecoderDeriverobject ConfigDecoderDeriverobject AvroCodecDeriverclass BsonCodecDeriverobject BsonCodecDeriverobject CsvCodecDeriverclass JsonCodecDeriverobject JsonCodecDeriverobject MessagePackCodecDeriverobject ThriftCodecDeriverclass ToonCodecDeriverobject ToonCodecDeriverclass XmlCodecDeriverobject XmlCodecDeriverclass YamlCodecDeriverobject YamlCodecDeriverclass DbCodecDeriverobject DbCodecDeriverobject HeaderCodecDeriverobject QueryCodecDeriverShow all
- Self type
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Deriver[TC]
Members list
Type members
Types
Attributes
- Source
- Deriver.scala
Value members
Abstract methods
Attributes
- Source
- Deriver.scala
Attributes
- Source
- Deriver.scala
Attributes
- Source
- Deriver.scala
Attributes
- Source
- Deriver.scala
Attributes
- Source
- Deriver.scala
Attributes
- Source
- Deriver.scala
Attributes
- Source
- Deriver.scala
Concrete methods
Attributes
- Source
- Deriver.scala
Attributes
- Source
- Deriver.scala
Attributes
- Source
- Deriver.scala
Attributes
- Source
- Deriver.scala
Returns a new deriver that pre-registers a type-level instance override. During derivation, every occurrence of type A will use the supplied instance instead of deriving one.
Returns a new deriver that pre-registers a type-level instance override. During derivation, every occurrence of type A will use the supplied instance instead of deriving one.
When the returned deriver is passed to DerivationBuilder, deriver-level instance overrides take precedence over builder-level instance overrides for the same target because DerivationBuilder.derive merges them as builderOverrides ++ deriver.instanceOverrides and later entries win in the resulting .toMap.
Type parameters
- A
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the type whose derived instance should be replaced
Value parameters
- instance
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the custom type-class instance (evaluated lazily)
- typeId
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implicit identifier for
A, used to match occurrences during derivation
Attributes
- Returns
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a new
Deriverthat wraps this deriver with the additional override - Source
- Deriver.scala
Returns a new deriver that pre-registers a field-level instance override. During derivation, the field named termName inside the parent record/variant identified by typeId will use the supplied instance instead of deriving one.
Returns a new deriver that pre-registers a field-level instance override. During derivation, the field named termName inside the parent record/variant identified by typeId will use the supplied instance instead of deriving one.
This is a medium-precision override between optic-based (exact path) and type-based (all occurrences).
Type parameters
- A
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the parent record or variant type that owns the field
- B
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the type of the field being overridden. Note that
Bis not statically checked against the actual field type; a mismatch will surface as a runtime error during codec use, not at derivation time.
Value parameters
- instance
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the custom type-class instance for the field (evaluated lazily)
- termName
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the name of the field (or variant case) to override. If no field with this name exists in the target type, the override is silently ignored during derivation (matching
DerivationBuilder.instancebehaviour). - typeId
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identifier for the parent type
A
Attributes
- Returns
-
a new
Deriverthat wraps this deriver with the additional override - Source
- Deriver.scala
Returns a new deriver that pre-registers a reflect-level modifier override. During derivation, every occurrence of the type identified by typeId will have the modifier prepended to its modifiers.
Returns a new deriver that pre-registers a reflect-level modifier override. During derivation, every occurrence of the type identified by typeId will have the modifier prepended to its modifiers.
Type parameters
- A
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the type to attach the modifier to
Value parameters
- modifier
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the reflect-level modifier to prepend
- typeId
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identifier for
A
Attributes
- Returns
-
a new
Deriverthat wraps this deriver with the additional override - Source
- Deriver.scala
Returns a new deriver that pre-registers a term-level modifier override. During derivation, the field named termName inside the parent type identified by typeId will have the modifier applied.
Returns a new deriver that pre-registers a term-level modifier override. During derivation, the field named termName inside the parent type identified by typeId will have the modifier applied.
Type parameters
- A
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the parent record or variant type that owns the field
Value parameters
- modifier
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the term-level modifier to apply
- termName
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the name of the field (or variant case) to modify. If no field with this name exists in the target type, the override is silently ignored.
- typeId
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identifier for
A
Attributes
- Returns
-
a new
Deriverthat wraps this deriver with the additional override - Source
- Deriver.scala