Class: GraphQL::StaticValidation::ValidationContext

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/graphql/static_validation/validation_context.rb

Overview

The validation context gets passed to each validator.

It exposes a Language::Visitor where validators may add hooks. (Language::Visitor#visit is called in GraphQL::StaticValidation::Validator#validate)

It provides access to the schema & fragments which validators may read from.

It holds a list of errors which each validator may add to.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(query, visitor_class, max_errors) ⇒ ValidationContext

Returns a new instance of ValidationContext.



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# File 'lib/graphql/static_validation/validation_context.rb', line 21

def initialize(query, visitor_class, max_errors)
  @query = query
  @types = query.types # TODO update migrated callers to use this accessor
  @schema = query.schema
  @literal_validator = LiteralValidator.new(context: query.context)
  @errors = []
  @max_errors = max_errors || Float::INFINITY
  @on_dependency_resolve_handlers = []
  @visitor = visitor_class.new(document, self)
end

Instance Attribute Details

#errors ⇒ Object (readonly)

Returns the value of attribute errors.



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# File 'lib/graphql/static_validation/validation_context.rb', line 14

def errors
  @errors
end

#max_errors ⇒ Object (readonly)

Returns the value of attribute max_errors.



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# File 'lib/graphql/static_validation/validation_context.rb', line 14

def max_errors
  @max_errors
end

#on_dependency_resolve_handlers ⇒ Object (readonly)

Returns the value of attribute on_dependency_resolve_handlers.



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# File 'lib/graphql/static_validation/validation_context.rb', line 14

def on_dependency_resolve_handlers
  @on_dependency_resolve_handlers
end

#query ⇒ Object (readonly)

Returns the value of attribute query.



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# File 'lib/graphql/static_validation/validation_context.rb', line 14

def query
  @query
end

#schema ⇒ Object (readonly)

Returns the value of attribute schema.



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# File 'lib/graphql/static_validation/validation_context.rb', line 14

def schema
  @schema
end

#types ⇒ Object (readonly)

Returns the value of attribute types.



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# File 'lib/graphql/static_validation/validation_context.rb', line 14

def types
  @types
end

#visitor ⇒ Object (readonly)

Returns the value of attribute visitor.



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# File 'lib/graphql/static_validation/validation_context.rb', line 14

def visitor
  @visitor
end

Instance Method Details

#did_you_mean_suggestion(name, options) ⇒ Object 



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# File 'lib/graphql/static_validation/validation_context.rb', line 53

def did_you_mean_suggestion(name, options)
  if did_you_mean = schema.did_you_mean
    suggestions = did_you_mean::SpellChecker.new(dictionary: options).correct(name)
    case suggestions.size
    when 0
      ""
    when 1
      " (Did you mean `#{suggestions.first}`?)"
    else
      last_sugg = suggestions.pop
      " (Did you mean #{suggestions.map {|s| "`#{s}`"}.join(", ")} or `#{last_sugg}`?)"
    end
  end
end

#on_dependency_resolve(&handler) ⇒ Object 



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# File 'lib/graphql/static_validation/validation_context.rb', line 37

def on_dependency_resolve(&handler)
  @on_dependency_resolve_handlers << handler
end

#schema_directives ⇒ Object 



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# File 'lib/graphql/static_validation/validation_context.rb', line 49

def schema_directives
  @schema_directives ||= schema.directives
end

#too_many_errors? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/graphql/static_validation/validation_context.rb', line 45

def too_many_errors?
  @errors.length >= @max_errors
end

#validate_literal(ast_value, type) ⇒ Object 



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# File 'lib/graphql/static_validation/validation_context.rb', line 41

def validate_literal(ast_value, type)
  @literal_validator.validate(ast_value, type)
end