Class: GraphQL::Analysis::AST::QueryComplexity
- Defined in:
- lib/graphql/analysis/ast/query_complexity.rb
Direct Known Subclasses
Defined Under Namespace
Classes: ScopedTypeComplexity
Instance Method Summary collapse
-
#initialize(query) ⇒ QueryComplexity
constructor
State for the query complexity calculation: -
complexities_on_type
holds complexity scores for each type in an IRep node. -
#on_enter_field(node, parent, visitor) ⇒ Object
-
#on_leave_field(node, parent, visitor) ⇒ Object
-
#result ⇒ Object
Overide this method to use the complexity result.
Methods inherited from Analyzer
Constructor Details
#initialize(query) ⇒ QueryComplexity
State for the query complexity calculation:
- complexities_on_type
holds complexity scores for each type in an IRep node
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# File 'lib/graphql/analysis/ast/query_complexity.rb', line 9 def initialize(query) super @complexities_on_type_by_query = {} end |
Instance Method Details
#on_enter_field(node, parent, visitor) ⇒ Object
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# File 'lib/graphql/analysis/ast/query_complexity.rb', line 66 def on_enter_field(node, parent, visitor) # We don't want to visit fragment definitions, # we'll visit them when we hit the spreads instead return if visitor.visiting_fragment_definition? return if visitor.skipping? parent_type = visitor.parent_type_definition field_key = node.alias || node.name # Find the complexity calculation for this field -- # if we're re-entering a selection, we'll already have one. # Otherwise, make a new one and store it. # # `node` and `visitor.field_definition` may appear from a cache, # but I think that's ok. If the arguments _didn't_ match, # then the query would have been rejected as invalid. complexities_on_type = @complexities_on_type_by_query[visitor.query] ||= [ScopedTypeComplexity.new(nil, nil, query, visitor.response_path)] complexity = complexities_on_type.last.scoped_children[parent_type][field_key] ||= ScopedTypeComplexity.new(node, visitor.field_definition, visitor.query, visitor.response_path) # Push it on the stack. complexities_on_type.push(complexity) end |
#on_leave_field(node, parent, visitor) ⇒ Object
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# File 'lib/graphql/analysis/ast/query_complexity.rb', line 87 def on_leave_field(node, parent, visitor) # We don't want to visit fragment definitions, # we'll visit them when we hit the spreads instead return if visitor.visiting_fragment_definition? return if visitor.skipping? complexities_on_type = @complexities_on_type_by_query[visitor.query] complexities_on_type.pop end |
#result ⇒ Object
Overide this method to use the complexity result
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# File 'lib/graphql/analysis/ast/query_complexity.rb', line 15 def result max_possible_complexity end |