JsonParserApplyOps

implicit final class JsonParserApplyOps extends AnyVal

Provides JSON-specific Parser constructor methods to the JsonParser object, for example JsonParser.fieldOf.

Technically JsonParser is not a companion object, it is a partially-applied version of the Parser companion object which binds the input type to JsonEvent, so "companion methods" must instead be added as extension methods.

Source: package.scala

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JsonParserApplyOps
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by any2stringadd
by StringFormat
by Ensuring
by ArrowAssoc

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Instance Constructors

new JsonParserApplyOps(parserApply: ParserApplyWithBoundInput[JsonEvent])

Value Members

final def !=(arg0: Any): Boolean
Definition Classes
Any
final def ##(): Int
Definition Classes
Any
def +(other: String): String
Implicit
This member is added by an implicit conversion from JsonParserApplyOps toany2stringadd[JsonParserApplyOps] performed by method any2stringadd in scala.Predef.
Definition Classes
any2stringadd
def ->[B](y: B): (JsonParserApplyOps, B)
Implicit
This member is added by an implicit conversion from JsonParserApplyOps toArrowAssoc[JsonParserApplyOps] performed by method ArrowAssoc in scala.Predef.
Definition Classes
ArrowAssoc
Annotations
@inline()
final def ==(arg0: Any): Boolean
Definition Classes
Any
final def asInstanceOf[T0]: T0
Definition Classes
Any
def ensuring(cond: (JsonParserApplyOps) => Boolean, msg: => Any): JsonParserApplyOps
Implicit
This member is added by an implicit conversion from JsonParserApplyOps toEnsuring[JsonParserApplyOps] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: (JsonParserApplyOps) => Boolean): JsonParserApplyOps
Implicit
This member is added by an implicit conversion from JsonParserApplyOps toEnsuring[JsonParserApplyOps] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: Boolean, msg: => Any): JsonParserApplyOps
Implicit
This member is added by an implicit conversion from JsonParserApplyOps toEnsuring[JsonParserApplyOps] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: Boolean): JsonParserApplyOps
Implicit
This member is added by an implicit conversion from JsonParserApplyOps toEnsuring[JsonParserApplyOps] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def fieldOf[T](fieldName: String, parser: JsonParser[T])(implicit arg0: TypeName[T], callerPos: CallerPos): JsonParser[T]
A JsonParser that parses a JSON object by parsing the given mandatory field with the given JsonParser[T].
A JsonParser that parses a JSON object by parsing the given mandatory field with the given JsonParser[T].
Note that if the given parser is available implicitly, you can use the other fieldOf signature.
The returned parser will fail if the first event is not an ObjectStart, or if the expected field does not appear inside the object, or if the value of the expected field causes the underlying parser to fail.
This is a shortcut for Splitter.json(fieldName).as[T].parseFirst.
E.g.
```
val rawJson = """{ "foo": 1, "bar": true }"""
val parser = JsonParser.fieldOf[Boolean]("bar")
parser.parse(rawJson) // returns `true`
```
T
The type of the extracted value
fieldName
The name of the expected field
parser
The underlying parser used to parse the value inside the expected field in the object
callerPos
Macro-derived location of the code calling this method, used to form a SpacTraceElement when the returned parser fails
returns
A JsonParser that parses the given field from a JSON object as a value of type T
def fieldOf[T](fieldName: String)(implicit arg0: TypeName[T], arg1: JsonParser[T], callerPos: CallerPos): JsonParser[T]
A JsonParser that parses a JSON object by parsing the given mandatory field with the implicitly-available JsonParser[T].
A JsonParser that parses a JSON object by parsing the given mandatory field with the implicitly-available JsonParser[T].
The returned parser will fail if the first event is not an ObjectStart, or if the expected field does not appear inside the object, or if the value of the expected field causes the underlying parser to fail.
This is a shortcut for Splitter.json(fieldName).as[T].parseFirst.
E.g.
```
val rawJson = """{ "foo": 1, "bar": true }"""
val parser = JsonParser.fieldOf[Boolean]("bar")
parser.parse(rawJson) // returns `true`
```
T
The type of the extracted value
fieldName
The name of the expected field
callerPos
Macro-derived location of the code calling this method, used to form a SpacTraceElement when the returned parser fails
returns
A JsonParser that parses the given field from a JSON object as a value of type T
def forBoolean: JsonParser[Boolean]
A JsonParser that captures the Boolean value from a JBool event, failing if the first event is not a JBool.
def forDouble: JsonParser[Double]
A JsonParser that captures a JDouble event as a Double value, failing if the first event is not a JDouble.
def forFloat: JsonParser[Float]
A JsonParser that captures a JDouble event as a Float value, failing if the first event is not a JDouble.
def forInt: JsonParser[Int]
A JsonParser that captures a JLong event as an Int value, failing if the first event is not a JLong.
def forLong: JsonParser[Long]
A JsonParser that captures a JLong event as a Long value, failing if the first event is not a JLong.
def forNull: JsonParser[None.type]
A JsonParser that returns None upon encountering a JNull event, failing upon encountering any other event or an EOF.
def forPrimitive[A](describePrimitive: String, matchPrimitive: (JsonEvent) => Option[A]): JsonParser[A]
Creates a JsonParser which captures the first JsonEvent it sees, expecting a primitive that can satisfy the matchPrimitive function.
Creates a JsonParser which captures the first JsonEvent it sees, expecting a primitive that can satisfy the matchPrimitive function.
This is the low-level method used to implement the forString, forInt, etc parsers. Its main use outside of those is if you want to create a parser that handles multiple different primitives without resorting to the use of orElse.
A
The type of the extracted value
describePrimitive
A message describing the type of event that this parser expects. Used to construct a SpacException if the matchPrimitive returns None
matchPrimitive
A function used to extract a value from the first JsonEvent this parser's handler encounters.
returns
A JsonParser which attempts to extract some value from the first event it encounters, throwing a SpacException if it cannot
def forString: JsonParser[String]
A JsonParser that captures the string value from a JsString event, failing if the first event is not a JsString.
def formatted(fmtstr: String): String
Implicit
This member is added by an implicit conversion from JsonParserApplyOps toStringFormat[JsonParserApplyOps] performed by method StringFormat in scala.Predef.
Definition Classes
StringFormat
Annotations
@inline()
def getClass(): Class[_ <: AnyVal]
Definition Classes
AnyVal → Any
final def isInstanceOf[T0]: Boolean
Definition Classes
Any
def listOf[T](parser: JsonParser[T])(implicit arg0: TypeName[T], callerPos: CallerPos): JsonParser[List[T]]
A JsonParser that parses a JSON array by parsing each item in the array via the given parser, collecting the values to a List.
A JsonParser that parses a JSON array by parsing each item in the array via the given parser, collecting the values to a List.
Note that if the given parser is available implicitly, you can use the other listOf signature instead.
This is a shortcut for Splitter.json(anyIndex).joinBy(parser).parseToList.
The returned parser will fail if the first event is not an ArrayStart, or if any of the values inside the array cause the underlying parser to fail. E.g. if the underlying parser is JsonParser.forInt, but one of the values in the array is a string, the exception thrown by JsonParser.forInt will bubble up through the returned parser.
E.g.
```
val parser = JsonParser.listOf(JsonParser.forInt)
parser.parse("[1, 2, 3]") // returns List(1, 2, 3)
parser.parse("[]") // returns Nil
parser.parse("42") // throws a SpacException
parser.parse("[1, 2, false]") // throws a SpacException
```
T
The type of the values inside the array
parser
The underlying parser to use for each value inside the array
callerPos
Macro-derived location of the code calling this method, used to form a SpacTraceElement when the returned parser fails
returns
A JsonParser that parses an array of values as a List[T]
def listOf[T](implicit arg0: TypeName[T], arg1: JsonParser[T], callerPos: CallerPos): JsonParser[List[T]]
A JsonParser that parses a JSON array by parsing each item in the array via the implicitly-available JsonParser[T], collecting the values to a List.
A JsonParser that parses a JSON array by parsing each item in the array via the implicitly-available JsonParser[T], collecting the values to a List.
This is a shortcut for Splitter.json(anyIndex).as[T].parseToList.
The returned parser will fail if the first event is not an ArrayStart, or if any of the values inside the array cause the underlying parser to fail. E.g. if the underlying parser is JsonParser.forInt, but one of the values in the array is a string, the exception thrown by JsonParser.forInt will bubble up through the returned parser.
E.g.
```
val parser = JsonParser.listOf[Int]
parser.parse("[1, 2, 3]") // returns List(1, 2, 3)
parser.parse("[]") // returns Nil
parser.parse("42") // throws a SpacException
parser.parse("[1, 2, false]") // throws a SpacException
```
T
The type of the values inside the array
callerPos
Macro-derived location of the code calling this method, used to form a SpacTraceElement when the returned parser fails
returns
A JsonParser that parses an array of values as a List[T]
def nullable[T](implicit parser: JsonParser[T]): JsonParser[Option[T]]
Wraps an existing JsonParser, creating a new JsonParser that will succeed with None if it encounters a null, or succeed with a Some(t) if the wrapped parser succeeds.
Wraps an existing JsonParser, creating a new JsonParser that will succeed with None if it encounters a null, or succeed with a Some(t) if the wrapped parser succeeds.
Used to parse values that may or may not be null.
Typical usage would be JsonParser.nullable[String], passing the underlying JsonParser[String] implicitly.
T
The type of the underlying parser's extracted value
parser
The underlying parser which would typically fail upon encountering a null
returns
A JsonParser which parses null as None, or else delegates to the underlying parser
def nullableFieldOf[T](fieldName: String, parser: JsonParser[T])(implicit arg0: TypeName[T], callerPos: CallerPos): JsonParser[Option[T]]
A JsonParser that parses a JSON object by parsing the given optional field with the given parser.
A JsonParser that parses a JSON object by parsing the given optional field with the given parser.
Note that if the given parser is available implicitly, you can use the other nullableFieldOf signature.
Unlike with fieldOf, the returned parser will succeed with a None if the expected field is missing, or if the value in the expected field is null. However, it will still fail if the first event is not an ObjectStart.
E.g.
```
val parser = JsonParser.nullableFieldOf("foo", JsonParser.forInt)
parser.parse("{}") // returns None
parser.parse("12") // throws a SpacException
parser.parse("""{ "foo": 42 }""") // returns 42
parser.parse("""{ "foo": null }""") // returns null
parser.parse("""{ "foo": "hello" }""") // throws a SpacException
```
T
The type of the extracted value
fieldName
The name of the field
parser
The underlying parser used to parse the value inside the expected field in the object
callerPos
Macro-derived location of the code calling this method, used to form a SpacTraceElement when the returned parser fails
returns
A JsonParser that parses the given field from a JSON object, wrapping a successfully-parsed value in Some, and treating null or a missing field as None
def nullableFieldOf[T](fieldName: String)(implicit arg0: TypeName[T], arg1: JsonParser[T], callerPos: CallerPos): JsonParser[Option[T]]
A JsonParser that parses a JSON object by parsing the given optional field with an implicitly-available JsonParser[T].
A JsonParser that parses a JSON object by parsing the given optional field with an implicitly-available JsonParser[T].
Unlike with fieldOf, the returned parser will succeed with a None if the expected field is missing, or if the value in the expected field is null. However, it will still fail if the first event is not an ObjectStart.
E.g.
```
val parser = JsonParser.nullableFieldOf[Int]("foo")
parser.parse("{}") // returns None
parser.parse(12) // throws a SpacException
parser.parse("""{ "foo": 42 }""") // returns 42
parser.parse("""{ "foo": null }""") // returns null
parser.parse("""{ "foo": "hello" }""") // throws a SpacException
```
T
The type of the extracted value
fieldName
The name of the field
callerPos
Macro-derived location of the code calling this method, used to form a SpacTraceElement when the returned parser fails
returns
A JsonParser that parses the given field from a JSON object, wrapping a successfully-parsed value in Some, and treating null or a missing field as None
def objectOf[T](parser: JsonParser[T])(implicit arg0: TypeName[T], callerPos: CallerPos): JsonParser[Map[String, T]]
A JsonParser that parses a JSON object by interpreting every field as a value of type T using the given parser, yielding a Map containing the parsed field -> value pairs.
A JsonParser that parses a JSON object by interpreting every field as a value of type T using the given parser, yielding a Map containing the parsed field -> value pairs.
Note that if the given parser is available implicitly, you can use the other objectOf signature instead.
This is a shortcut for Splitter.json(anyField).map(field -> parser.map(field -> _)).parseToMap.
The returned parser will fail if the first event is not an ObjectStart, or if any of the field values in the object cause the underlying parser to fail. E.g. if the underlying parser is JsonParser.forString, but one of the fields contains some non-string value, the exception thrown by JsonParser.forString will bubble up through the returned parser.
E.g.
```
val parser = JsonParser.objectOf(JsonParser.forInt)
parser.parse("""{ "foo": 1, "bar": 2 }""") // returns Map("foo" -> 1, "bar" -> 2)
parser.parse("""{ "foo": 1, "bar": "whoops" }""") // throws a SpacException
parser.parse("13") // throws a SpacException
```
T
The type of the values inside each field
parser
The underlying parser used to parse each field in the object
callerPos
Macro-derived location of the code calling this method, used to form a SpacTraceElement when the returned parser fails
returns
A JsonParser that parses an object as a Map[String, T]
def objectOf[T](implicit arg0: TypeName[T], arg1: JsonParser[T], callerPos: CallerPos): JsonParser[Map[String, T]]
A JsonParser that parses a JSON object by interpreting every field as a value of type T using the implicitly-available JsonParser[T], yielding a Map containing the parsed field -> value pairs.
A JsonParser that parses a JSON object by interpreting every field as a value of type T using the implicitly-available JsonParser[T], yielding a Map containing the parsed field -> value pairs.
This is a shortcut for Splitter.json(anyField).map(field -> implicitly[JsonParser[T]].map(field -> _)).parseToMap.
The returned parser will fail if the first event is not an ObjectStart, or if any of the field values in the object cause the underlying parser to fail. E.g. if the underlying parser is JsonParser.forString, but one of the fields contains some non-string value, the exception thrown by JsonParser.forString will bubble up through the returned parser.
E.g.
```
val parser = JsonParser.objectOf[Int]
parser.parse("""{ "foo": 1, "bar": 2 }""") // returns Map("foo" -> 1, "bar" -> 2)
parser.parse("""{ "foo": 1, "bar": "whoops" }""") // throws a SpacException
parser.parse("13") // throws a SpacException
```
T
The type of the values inside each field
callerPos
Macro-derived location of the code calling this method, used to form a SpacTraceElement when the returned parser fails
returns
A JsonParser that parses an object as a Map[String, T]
def objectOfNullable[T](parser: JsonParser[T])(implicit arg0: TypeName[T], callerPos: CallerPos): JsonParser[Map[String, T]]
A JsonParser that parses a JSON object by interpreting every possibly-null field as a value of type T using the given JsonParser[T], filtering out null fields and yielding a Map containing field -> value pairs of the successfully-parsed fields.
A JsonParser that parses a JSON object by interpreting every possibly-null field as a value of type T using the given JsonParser[T], filtering out null fields and yielding a Map containing field -> value pairs of the successfully-parsed fields.
Note that if the given parser is available implicitly, you can use the other objectOfNullable signature instead.
Note that while fields with null instead of an expected T value are filtered out, non-null fields that cause the underlying parser to fail will cause the returned parser to fail as well. As with objectOf, the returned parser will fail if the first event is not an ObjectStart.
E.g.
```
val parser = JsonParser.objectOfNullable(JsonParser.forInt)
parser.parse("""{ "foo": 1, "bar": 2 }""") // returns Map("foo" -> 1, "bar" -> 2)
parser.parse("""{ "foo": 1, "bar": null }""") // returns Map("foo" -> 1)
parser.parse("""{ "foo": 1, "bar": "whoops" }""") // throws a SpacException
parser.parse("13") // throws a SpacException
```
T
The type of the values inside each field
parser
The underlying parser used to parse values (aside from null) for each of the fields in the input object
callerPos
Macro-derived location of the code calling this method, used to form a SpacTraceElement when the returned parser fails
returns
A JsonParser that parses an object as a Map[String, T], ignoring fields with null values
def objectOfNullable[T](implicit arg0: TypeName[T], arg1: JsonParser[T], callerPos: CallerPos): JsonParser[Map[String, T]]
A JsonParser that parses a JSON object by interpreting every possibly-null field as a value of type T using an implicitly-available JsonParser[T], filtering out null fields and yielding a Map containing field -> value pairs of the successfully-parsed fields.
A JsonParser that parses a JSON object by interpreting every possibly-null field as a value of type T using an implicitly-available JsonParser[T], filtering out null fields and yielding a Map containing field -> value pairs of the successfully-parsed fields.
Note that while fields with null instead of an expected T value are filtered out, non-null fields that cause the underlying parser to fail will cause the returned parser to fail as well. As with objectOf, the returned parser will fail if the first event is not an ObjectStart.
E.g.
```
val parser = JsonParser.objectOfNullable[Int]
parser.parse("""{ "foo": 1, "bar": 2 }""") // returns Map("foo" -> 1, "bar" -> 2)
parser.parse("""{ "foo": 1, "bar": null }""") // returns Map("foo" -> 1)
parser.parse("""{ "foo": 1, "bar": "whoops" }""") // throws a SpacException
parser.parse("13") // throws a SpacException
```
T
The type of the values inside each field
callerPos
Macro-derived location of the code calling this method, used to form a SpacTraceElement when the returned parser fails
returns
A JsonParser that parses an object as a Map[String, T], ignoring fields with null values
def toString(): String
Definition Classes
Any

Deprecated Value Members

def →[B](y: B): (JsonParserApplyOps, B)
Implicit
This member is added by an implicit conversion from JsonParserApplyOps toArrowAssoc[JsonParserApplyOps] performed by method ArrowAssoc in scala.Predef.
Definition Classes
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@deprecated
Deprecated
(Since version 2.13.0) Use -> instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.

Packages

JsonParserApplyOps

implicit final class JsonParserApplyOps extends AnyVal

Instance Constructors

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Inherited from AnyVal

Inherited from Any

Inherited by implicit conversion any2stringadd fromJsonParserApplyOps to any2stringadd[JsonParserApplyOps]

Inherited by implicit conversion StringFormat fromJsonParserApplyOps to StringFormat[JsonParserApplyOps]

Inherited by implicit conversion Ensuring fromJsonParserApplyOps to Ensuring[JsonParserApplyOps]

Inherited by implicit conversion ArrowAssoc fromJsonParserApplyOps to ArrowAssoc[JsonParserApplyOps]

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JsonParserApplyOps

implicit final class JsonParserApplyOps extends AnyVal

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Inherited from AnyVal

Inherited from Any

Inherited by implicit conversion any2stringadd fromJsonParserApplyOps to any2stringadd[JsonParserApplyOps]

Inherited by implicit conversion StringFormat fromJsonParserApplyOps to StringFormat[JsonParserApplyOps]

Inherited by implicit conversion Ensuring fromJsonParserApplyOps to Ensuring[JsonParserApplyOps]

Inherited by implicit conversion ArrowAssoc fromJsonParserApplyOps to ArrowAssoc[JsonParserApplyOps]

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JsonParserApplyOps