class YAML::ParseContext

Overview

Parsing context that holds anchors and what they refer to.

When implementing new(ctx : YAML::ParseContext, node : YAML::Nodes::Node) to deserialize an object from a node, Reference types must invoke both #read_alias and #record_anchor in order to support parsing recursive data structures.

Defined in:

yaml/parse_context.cr

Constructors

Instance Method Summary

Instance methods inherited from class Reference

==(other : self)
==(other : JSON::Any)
==(other : YAML::Any)
==(other)
==
, dup dup, hash(hasher) hash, inspect(io : IO) : Nil inspect, object_id : UInt64 object_id, pretty_print(pp) : Nil pretty_print, same?(other : Reference)
same?(other : Nil)
same?
, to_s(io : IO) : Nil to_s

Constructor methods inherited from class Reference

new new

Instance methods inherited from class Object

!=(other) !=, !~(other) !~, ==(other) ==, ===(other : JSON::Any)
===(other : YAML::Any)
===(other)
===
, =~(other) =~, class class, dup dup, hash(hasher)
hash
hash
, inspect(io : IO) : Nil
inspect : String
inspect
, itself itself, not_nil! not_nil!, pretty_inspect(width = 79, newline = "\n", indent = 0) : String pretty_inspect, pretty_print(pp : PrettyPrint) : Nil pretty_print, tap(&block) tap, to_json(io : IO)
to_json
to_json
, to_pretty_json(indent : String = " ")
to_pretty_json(io : IO, indent : String = " ")
to_pretty_json
, to_s : String
to_s(io : IO) : Nil
to_s
, to_yaml(io : IO)
to_yaml
to_yaml
, try(&block) try, unsafe_as(type : T.class) forall T unsafe_as

Constructor methods inherited from class Object

from_json(string_or_io, root : String) : self
from_json(string_or_io) : self
from_json
, from_yaml(string_or_io : String | IO) : self from_yaml

Constructor Detail

def self.new #

[View source]

Instance Method Detail

def read_alias(node, type : T.class, &block) forall T #

Tries to read an alias from node of type T. Invokes the block if successful, and invokers must return this object instead of deserializing their members.


[View source]
def read_alias?(node, type : T.class, &block) forall T #

Similar to #read_alias but doesn't raise if an alias exists but an instance of type T isn't associated with the current anchor.


[View source]
def record_anchor(node, object : T) : Nil forall T #

Associates an object with an anchor.


[View source]