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use memoization when type merging with lists (#1728)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| import { GraphQLSchema, FieldNode, GraphQLObjectType, GraphQLResolveInfo } from 'graphql'; | ||
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| import { collectFields, GraphQLExecutionContext } from '@graphql-tools/utils'; | ||
| import { isSubschemaConfig } from './Subschema'; | ||
| import { MergedTypeInfo, SubschemaConfig, StitchingInfo } from './types'; | ||
| import { memoize3and1 } from './memoize'; | ||
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| function collectSubFields(info: GraphQLResolveInfo, typeName: string): Record<string, Array<FieldNode>> { | ||
| let subFieldNodes: Record<string, Array<FieldNode>> = Object.create(null); | ||
| const visitedFragmentNames = Object.create(null); | ||
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| const type = info.schema.getType(typeName) as GraphQLObjectType; | ||
| const partialExecutionContext = ({ | ||
| schema: info.schema, | ||
| variableValues: info.variableValues, | ||
| fragments: info.fragments, | ||
| } as unknown) as GraphQLExecutionContext; | ||
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| info.fieldNodes.forEach(fieldNode => { | ||
| subFieldNodes = collectFields( | ||
| partialExecutionContext, | ||
| type, | ||
| fieldNode.selectionSet, | ||
| subFieldNodes, | ||
| visitedFragmentNames | ||
| ); | ||
| }); | ||
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| const stitchingInfo = info.schema.extensions.stitchingInfo as StitchingInfo; | ||
| const selectionSetsByType = stitchingInfo.selectionSetsByType; | ||
| const selectionSetsByField = stitchingInfo.selectionSetsByField; | ||
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| Object.keys(subFieldNodes).forEach(responseName => { | ||
| const fieldName = subFieldNodes[responseName][0].name.value; | ||
| const typeSelectionSet = selectionSetsByType[typeName]; | ||
| if (typeSelectionSet != null) { | ||
| subFieldNodes = collectFields( | ||
| partialExecutionContext, | ||
| type, | ||
| typeSelectionSet, | ||
| subFieldNodes, | ||
| visitedFragmentNames | ||
| ); | ||
| } | ||
| const fieldSelectionSet = selectionSetsByField?.[typeName]?.[fieldName]; | ||
| if (fieldSelectionSet != null) { | ||
| subFieldNodes = collectFields( | ||
| partialExecutionContext, | ||
| type, | ||
| fieldSelectionSet, | ||
| subFieldNodes, | ||
| visitedFragmentNames | ||
| ); | ||
| } | ||
| }); | ||
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| return subFieldNodes; | ||
| } | ||
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| export const getFieldsNotInSubschema = memoize3and1(function ( | ||
| info: GraphQLResolveInfo, | ||
| subschema: GraphQLSchema | SubschemaConfig, | ||
| mergedTypeInfo: MergedTypeInfo, | ||
| typeName: string | ||
| ): Array<FieldNode> { | ||
| const typeMap = isSubschemaConfig(subschema) ? mergedTypeInfo.typeMaps.get(subschema) : subschema.getTypeMap(); | ||
| const fields = (typeMap[typeName] as GraphQLObjectType).getFields(); | ||
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| const subFieldNodes = collectSubFields(info, typeName); | ||
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| let fieldsNotInSchema: Array<FieldNode> = []; | ||
| Object.keys(subFieldNodes).forEach(responseName => { | ||
| const fieldName = subFieldNodes[responseName][0].name.value; | ||
| if (!(fieldName in fields)) { | ||
| fieldsNotInSchema = fieldsNotInSchema.concat(subFieldNodes[responseName]); | ||
| } | ||
| }); | ||
|
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| return fieldsNotInSchema; | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,137 @@ | ||
| export function memoize3and1< | ||
| T1 extends Record<string, any>, | ||
| T2 extends Record<string, any>, | ||
| T3 extends Record<string, any>, | ||
| T4 extends string, | ||
| R extends any | ||
| >(fn: (A1: T1, A2: T2, A3: T3, A4: T4) => R): (A1: T1, A2: T2, A3: T3, A4: T4) => R { | ||
| let cache1: WeakMap<T1, WeakMap<T2, WeakMap<T3, Record<string, R>>>>; | ||
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| function memoized(a1: T1, a2: T2, a3: T3, a4: T4) { | ||
| if (!cache1) { | ||
| cache1 = new WeakMap(); | ||
| const cache2: WeakMap<T2, WeakMap<T3, Record<T4, R>>> = new WeakMap(); | ||
| cache1.set(a1, cache2); | ||
| const cache3: WeakMap<T3, Record<T4, R>> = new WeakMap(); | ||
| cache2.set(a2, cache3); | ||
| const cache4 = Object.create(null); | ||
| cache3.set(a3, cache4); | ||
| const newValue = fn(a1, a2, a3, a4); | ||
| cache4[a4] = newValue; | ||
| return newValue; | ||
| } | ||
|
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| let cache2 = cache1.get(a1); | ||
| if (!cache2) { | ||
| cache2 = new WeakMap(); | ||
| cache1.set(a1, cache2); | ||
| const cache3: WeakMap<T3, Record<T4, R>> = new WeakMap(); | ||
| cache2.set(a2, cache3); | ||
| const cache4 = Object.create(null); | ||
| cache3.set(a3, cache4); | ||
| const newValue = fn(a1, a2, a3, a4); | ||
| cache4[a4] = newValue; | ||
| return newValue; | ||
| } | ||
|
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| let cache3 = cache2.get(a2); | ||
| if (!cache3) { | ||
| cache3 = new WeakMap(); | ||
| cache2.set(a2, cache3); | ||
| const cache4 = Object.create(null); | ||
| cache3.set(a3, cache4); | ||
| const newValue = fn(a1, a2, a3, a4); | ||
| cache4[a4] = newValue; | ||
| return newValue; | ||
| } | ||
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| let cache4 = cache3.get(a3); | ||
| if (!cache4) { | ||
| cache4 = Object.create(null); | ||
| cache3.set(a3, cache4); | ||
| const newValue = fn(a1, a2, a3, a4); | ||
| cache4[a4] = newValue; | ||
| return newValue; | ||
| } | ||
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| const cachedValue = cache4[a4]; | ||
| if (cachedValue === undefined) { | ||
| const newValue = fn(a1, a2, a3, a4); | ||
| cache4[a4] = newValue; | ||
| return newValue; | ||
| } | ||
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| return cachedValue; | ||
| } | ||
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| return memoized; | ||
| } | ||
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| export function memoize4< | ||
| T1 extends Record<string, any>, | ||
| T2 extends Record<string, any>, | ||
| T3 extends Record<string, any>, | ||
| T4 extends Record<string, any>, | ||
| R extends any | ||
| >(fn: (A1: T1, A2: T2, A3: T3, A4: T4) => R): (A1: T1, A2: T2, A3: T3, A4: T4) => R { | ||
| let cache1: WeakMap<T1, WeakMap<T2, WeakMap<T3, WeakMap<T4, R>>>>; | ||
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| function memoized(a1: T1, a2: T2, a3: T3, a4: T4) { | ||
| if (!cache1) { | ||
| cache1 = new WeakMap(); | ||
| const cache2: WeakMap<T2, WeakMap<T3, WeakMap<T4, R>>> = new WeakMap(); | ||
| cache1.set(a1, cache2); | ||
| const cache3: WeakMap<T3, WeakMap<T4, R>> = new WeakMap(); | ||
| cache2.set(a2, cache3); | ||
| const cache4: WeakMap<T4, R> = new WeakMap(); | ||
| cache3.set(a3, cache4); | ||
| const newValue = fn(a1, a2, a3, a4); | ||
| cache4.set(a4, newValue); | ||
| return newValue; | ||
| } | ||
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| let cache2 = cache1.get(a1); | ||
| if (!cache2) { | ||
| cache2 = new WeakMap(); | ||
| cache1.set(a1, cache2); | ||
| const cache3: WeakMap<T3, WeakMap<T4, R>> = new WeakMap(); | ||
| cache2.set(a2, cache3); | ||
| const cache4: WeakMap<T4, R> = new WeakMap(); | ||
| cache3.set(a3, cache4); | ||
| const newValue = fn(a1, a2, a3, a4); | ||
| cache4.set(a4, newValue); | ||
| return newValue; | ||
| } | ||
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| let cache3 = cache2.get(a2); | ||
| if (!cache3) { | ||
| cache3 = new WeakMap(); | ||
| cache2.set(a2, cache3); | ||
| const cache4: WeakMap<T4, R> = new WeakMap(); | ||
| cache3.set(a3, cache4); | ||
| const newValue = fn(a1, a2, a3, a4); | ||
| cache4.set(a4, newValue); | ||
| return newValue; | ||
| } | ||
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| let cache4 = cache3.get(a3); | ||
| if (!cache4) { | ||
| cache4 = new WeakMap(); | ||
| cache3.set(a3, cache4); | ||
| const newValue = fn(a1, a2, a3, a4); | ||
| cache4.set(a4, newValue); | ||
| return newValue; | ||
| } | ||
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| const cachedValue = cache4.get(a4); | ||
| if (cachedValue === undefined) { | ||
| const newValue = fn(a1, a2, a3, a4); | ||
| cache4.set(a4, newValue); | ||
| return newValue; | ||
| } | ||
|
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| return cachedValue; | ||
| } | ||
|
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| return memoized; | ||
| } |
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