@graphql-mesh/fusion-execution
Version:
Runtime for Fusion Supergraph
658 lines (657 loc) • 34.4 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.visitFieldNodeForTypeResolvers = exports.resolveResolverOperationStringAndKind = exports.getGlobalResolver = exports.isList = exports.createResolveNode = void 0;
const tslib_1 = require("tslib");
const graphql_1 = require("graphql");
const lodash_1 = tslib_1.__importDefault(require("lodash"));
// Resolution direction is from parentSubgraph to resolverDirective.subgraph
function createResolveNode({ parentSubgraph, fieldNode, resolverOperationString, resolverKind = 'FETCH', variableDirectives, resolverSelections, resolverArguments, ctx, }) {
let resolverOperationDocument = (0, graphql_1.parse)(resolverOperationString, { noLocation: true });
if (!fieldNode.selectionSet) {
throw new Error('Object type should have a selectionSet');
}
const deepestFieldNodePath = [];
const deepestNodeToHaveSelectionsPath = [];
const requiredVariableNames = new Set();
const newVariableNameMap = new Map();
const resolverOperationPath = [];
const variableInnerValueMap = new Map();
const variablesFromDifferentSubgraph = [];
resolverOperationDocument = (0, graphql_1.visit)(resolverOperationDocument, {
OperationDefinition(node, __, ___, path) {
resolverOperationPath.push(...path);
if (node.variableDefinitions != null) {
const newVariableDefinitions = [];
for (const variableDefinition of node.variableDefinitions) {
const variableDirective = variableDirectives.find(d => d.name === variableDefinition.variable.name.value);
if (variableDirective?.value) {
const varValue = (0, graphql_1.parseValue)(variableDirective.value, { noLocation: true });
const innerVariableNames = new Set();
(0, graphql_1.visit)(varValue, {
Variable(node) {
innerVariableNames.add(node.name.value);
},
});
variableInnerValueMap.set(variableDefinition.variable.name.value, varValue);
const isRequired = variableDefinition.type.kind === graphql_1.Kind.NON_NULL_TYPE;
for (const requiredInnerVariableName of innerVariableNames) {
const innerVariableDirective = variableDirectives.find(d => d.name === requiredInnerVariableName);
if (innerVariableDirective) {
let innerVarTypeVal = innerVariableDirective?.type;
if (!innerVarTypeVal) {
console.warn(`No type found for variable ${requiredInnerVariableName}, using ID`);
innerVarTypeVal = 'ID';
}
const innerVarType = (0, graphql_1.parseType)(innerVarTypeVal, { noLocation: true });
const innerVarTypeInAst = isRequired
? {
kind: graphql_1.Kind.NON_NULL_TYPE,
type: innerVarType,
}
: innerVarType;
newVariableDefinitions.push({
kind: graphql_1.Kind.VARIABLE_DEFINITION,
variable: {
kind: graphql_1.Kind.VARIABLE,
name: {
kind: graphql_1.Kind.NAME,
value: requiredInnerVariableName,
},
},
type: innerVarTypeInAst,
});
}
}
}
else {
newVariableDefinitions.push(variableDefinition);
}
}
return {
...node,
variableDefinitions: newVariableDefinitions,
};
}
return undefined;
},
});
resolverOperationDocument = (0, graphql_1.visit)(resolverOperationDocument, {
VariableDefinition(node) {
const newVariableName = `__variable_${ctx.currentVariableIndex++}`;
newVariableNameMap.set(node.variable.name.value, newVariableName);
if (node.type.kind === graphql_1.Kind.NON_NULL_TYPE) {
requiredVariableNames.add(node.variable.name.value);
}
},
Variable(node) {
const innerValue = variableInnerValueMap.get(node.name.value);
if (innerValue) {
return innerValue;
}
const newVariableName = newVariableNameMap.get(node.name.value);
if (!newVariableName) {
return {
kind: graphql_1.Kind.NULL,
};
}
return {
...node,
name: {
kind: graphql_1.Kind.NAME,
value: newVariableName,
},
};
},
Field(_node, _key, _parent, path) {
if (path.length > deepestFieldNodePath.length) {
deepestFieldNodePath.splice(0, deepestFieldNodePath.length, ...path);
deepestNodeToHaveSelectionsPath.splice(0, deepestFieldNodePath.length, ...path);
}
},
});
(0, graphql_1.visit)(resolverOperationDocument, {
FragmentSpread(node, key, parent, path) {
if (node.name.value === '__export') {
deepestNodeToHaveSelectionsPath.splice(0, deepestNodeToHaveSelectionsPath.length, ...path.slice(0, -3));
}
},
});
// START: Handle variables and modify the parent field node if needed
// This is the parent selection set
const newFieldSelectionSet = {
kind: graphql_1.Kind.SELECTION_SET,
selections: [...fieldNode.selectionSet.selections],
};
const newFieldNode = {
...fieldNode,
selectionSet: newFieldSelectionSet,
};
const variableDirectivesForField = variableDirectives.filter(d => newVariableNameMap.has(d.name));
const variableDirectivesForFieldForThisSubgraph = variableDirectivesForField.filter(d => d.subgraph != null ? d.subgraph === parentSubgraph : true);
for (const [oldVarName, newVarName] of newVariableNameMap) {
const varDirective = variableDirectivesForFieldForThisSubgraph.find(d => d.name === oldVarName);
if (varDirective?.select) {
const varOp = (0, graphql_1.parse)(`{${varDirective.select}}`, { noLocation: true });
const deepestFieldNodePathInVarOp = [];
(0, graphql_1.visit)(varOp, {
Field(_node, _key, _parent, path) {
if (path.length > deepestFieldNodePathInVarOp.length) {
deepestFieldNodePathInVarOp.splice(0, deepestFieldNodePathInVarOp.length, ...path);
}
},
});
const deepestFieldNodeInVarOp = lodash_1.default.get(varOp, deepestFieldNodePathInVarOp);
lodash_1.default.set(varOp, deepestFieldNodePathInVarOp, {
...deepestFieldNodeInVarOp,
alias: {
kind: graphql_1.Kind.NAME,
value: newVarName,
},
});
const varOpSelectionSet = lodash_1.default.get(varOp, 'definitions.0.selectionSet');
newFieldSelectionSet.selections.push(...(varOpSelectionSet?.selections ?? []));
}
// If it is a computed variable
else if (varDirective?.value) {
// Skip
}
// If select is not given, use the variable as the default value for the variable
else {
const fieldArgumentNode = resolverArguments?.find(argument => argument.name.value === oldVarName);
if (fieldArgumentNode) {
// If the resolver variable matches the name of the argument, use the variable of the actual operation in the resolver document
if (fieldArgumentNode.value.kind === graphql_1.Kind.VARIABLE) {
const fieldArgValueNode = fieldArgumentNode.value;
resolverOperationDocument = (0, graphql_1.visit)(resolverOperationDocument, {
[graphql_1.Kind.VARIABLE](node) {
if (node.name.value === newVarName) {
return fieldArgValueNode;
}
return node;
},
[graphql_1.Kind.VARIABLE_DEFINITION](node) {
if (newVarName === node.variable.name.value) {
return {
...node,
name: fieldArgValueNode.name,
};
}
return node;
},
});
// If it is not a variable in the actual operation, use the value as the default value for the variable
}
else {
const resolverOperation = lodash_1.default.get(resolverOperationDocument, resolverOperationPath);
const variableDefinitions = (resolverOperation.variableDefinitions ||= []);
const variableInResolveOp = variableDefinitions.find(variableDefinition => variableDefinition.variable.name.value === newVarName);
if (variableInResolveOp) {
// Replace variable with the actual value
(0, graphql_1.visit)(fieldArgumentNode.value, {
[graphql_1.Kind.VARIABLE](node) {
const varTypeInCtx = ctx.rootVariableMap.get(node.name.value);
if (varTypeInCtx != null) {
if (!variableDefinitions.some(v => v.variable.name.value === node.name.value)) {
variableDefinitions.push(varTypeInCtx);
}
}
},
});
resolverOperationDocument = (0, graphql_1.visit)(resolverOperationDocument, {
[graphql_1.Kind.VARIABLE_DEFINITION](node) {
if (node.variable.name.value === newVarName) {
return null;
}
return node;
},
[graphql_1.Kind.VARIABLE](node) {
if (node.name.value === newVarName) {
return fieldArgumentNode.value;
}
return node;
},
});
}
}
}
if (!fieldArgumentNode && requiredVariableNames.has(oldVarName)) {
// Required variable does not select anything or have a value for either from field argument or type for parent subgraph
const variableForDifferentSubgraph = variableDirectivesForField.find(d => d.name === oldVarName);
variablesFromDifferentSubgraph.push({
variableDirective: variableForDifferentSubgraph,
newVariableName: newVarName,
});
}
}
}
// END: Handle variables and modify the parent field node if needed
// Modify the exported selection from the resolver operation
const existingDeepestFieldNode = lodash_1.default.get(resolverOperationDocument, deepestFieldNodePath);
lodash_1.default.set(resolverOperationDocument, deepestFieldNodePath, {
...existingDeepestFieldNode,
alias: {
kind: graphql_1.Kind.NAME,
value: '__export',
},
});
const existingDeepestNodeForSelections = lodash_1.default.get(resolverOperationDocument, deepestNodeToHaveSelectionsPath);
lodash_1.default.set(resolverOperationDocument, deepestNodeToHaveSelectionsPath, {
...existingDeepestNodeForSelections,
selectionSet: {
kind: graphql_1.Kind.SELECTION_SET,
selections: resolverSelections,
},
});
return {
newFieldNode,
resolverOperationDocument,
resolvedFieldPath: deepestFieldNodePath,
variablesFromDifferentSubgraph,
batch: resolverKind === 'BATCH',
defer: fieldNode.defer,
};
}
exports.createResolveNode = createResolveNode;
function getDefDirectives({ astNode, extensions }) {
const directiveAnnotations = [];
if (astNode != null && 'directives' in astNode) {
astNode.directives?.forEach(directiveNode => {
directiveAnnotations.push({
name: directiveNode.name.value,
args: directiveNode.arguments?.reduce((acc, arg) => {
acc[arg.name.value] = (0, graphql_1.valueFromASTUntyped)(arg.value);
return acc;
}, {}) ?? {},
});
});
}
if (extensions?.directives != null) {
for (const directiveName in extensions.directives) {
const directiveExt = extensions.directives[directiveName];
if (directiveExt != null) {
if (Array.isArray(directiveExt)) {
directiveExt.forEach(directive => {
directiveAnnotations.push({
name: directiveName,
args: directive,
});
});
}
else {
directiveAnnotations.push({
name: directiveName,
args: directiveExt,
});
}
}
}
}
return directiveAnnotations;
}
function isList(type) {
if ((0, graphql_1.isNonNullType)(type)) {
return isList(type.ofType);
}
else if ((0, graphql_1.isListType)(type)) {
return true;
}
else {
return false;
}
}
exports.isList = isList;
function getGlobalResolver(fusiongraph, resolverName, subgraphName) {
for (const directiveNode of fusiongraph.astNode.directives ?? []) {
if (directiveNode.name.value === 'resolver') {
const nameArg = directiveNode.arguments?.find(arg => arg.name.value === 'name');
const subgraphArg = directiveNode.arguments?.find(arg => arg.name.value === 'subgraph');
if (nameArg?.value.kind === graphql_1.Kind.STRING && subgraphArg?.value.kind === graphql_1.Kind.STRING) {
if (nameArg.value.value === resolverName && subgraphArg.value.value === subgraphName) {
const operationArg = directiveNode.arguments?.find(arg => arg.name.value === 'operation');
const kindArg = directiveNode.arguments?.find(arg => arg.name.value === 'kind');
if (operationArg?.value.kind === graphql_1.Kind.STRING) {
return {
name: resolverName,
operation: operationArg.value.value,
kind: kindArg?.value.kind === graphql_1.Kind.STRING
? kindArg.value.value
: undefined,
subgraph: subgraphName,
};
}
}
}
}
}
return undefined;
}
exports.getGlobalResolver = getGlobalResolver;
function resolveResolverOperationStringAndKind(fusiongraph, resolverDirective) {
let resolverOperationString;
let resolverKind;
if ('name' in resolverDirective) {
const globalResolver = getGlobalResolver(fusiongraph, resolverDirective.name, resolverDirective.subgraph);
if (!globalResolver) {
throw new Error(`No global resolver found for ${resolverDirective.name}`);
}
resolverOperationString = globalResolver.operation;
resolverKind = globalResolver.kind ?? 'FETCH';
}
else {
resolverOperationString = resolverDirective.operation;
resolverKind = resolverDirective.kind ?? 'FETCH';
}
return {
resolverOperationString,
resolverKind,
};
}
exports.resolveResolverOperationStringAndKind = resolveResolverOperationStringAndKind;
function visitFieldNodeForTypeResolvers(
// Subgraph of which that the field node belongs to
parentSubgraph,
// Field Node that returns this type
fieldNode,
// Type that is returned by the field node
type,
// Fusiongraph Schema
fusiongraph,
// Visitor context
ctx) {
const typeFieldMap = type.getFields();
const typeDirectives = getDefDirectives(type);
// Visit for type resolvers
const newFieldSelectionSet = {
kind: graphql_1.Kind.SELECTION_SET,
selections: [],
};
let newFieldNode = {
...fieldNode,
selectionSet: newFieldSelectionSet,
};
const resolverSelectionsBySubgraph = {};
const variablesByResolverSelection = new WeakMap();
const resolverOperationNodes = [];
const resolverDependencyFieldMap = new Map();
for (const subFieldNodeIndex in fieldNode.selectionSet.selections) {
let subFieldNode = fieldNode.selectionSet.selections[subFieldNodeIndex];
const fieldNameInNode = subFieldNode.name.value;
if (fieldNameInNode === '__typename') {
newFieldSelectionSet.selections.push(subFieldNode);
continue;
}
const fieldDefInType = typeFieldMap[fieldNameInNode];
if (!fieldDefInType) {
throw new Error(`No field definition found for ${fieldNameInNode} in ${type.constructor.name} ${type.name}`);
}
const fieldDirectives = getDefDirectives(fieldDefInType);
const sourceDirectives = fieldDirectives.filter(d => d.name === 'source');
const sourceDirectiveForThisSubgraph = sourceDirectives.find(d => d.args?.subgraph === parentSubgraph);
// Resolve the selections of the field even if it is the same subgraph
const namedFieldType = (0, graphql_1.getNamedType)(fieldDefInType.type);
if (sourceDirectiveForThisSubgraph) {
const fieldNameInParent = fieldDefInType.name;
const fieldAliasInParent = subFieldNode.alias?.value ?? fieldNameInParent;
const nameInSubgraph = sourceDirectiveForThisSubgraph.args?.name ?? fieldNameInParent;
if (nameInSubgraph !== fieldNameInParent || fieldNameInParent !== fieldAliasInParent) {
subFieldNode = {
...subFieldNode,
name: {
kind: graphql_1.Kind.NAME,
value: nameInSubgraph,
},
alias: {
kind: graphql_1.Kind.NAME,
value: fieldAliasInParent,
},
};
}
if ((0, graphql_1.isObjectType)(namedFieldType)) {
const { newFieldNode: newSubFieldNode, resolverOperationNodes: subFieldResolverOperationNodes, resolverDependencyFieldMap: subFieldResolverDependencyMap, } = visitFieldNodeForTypeResolvers(parentSubgraph, subFieldNode, namedFieldType, fusiongraph, ctx);
subFieldNode = newSubFieldNode;
resolverDependencyFieldMap.set(subFieldNode.name.value, subFieldResolverOperationNodes);
for (const [subSubFieldName, dependencies] of subFieldResolverDependencyMap.entries()) {
if (dependencies.length) {
resolverDependencyFieldMap.set(`${subFieldNode.name.value}.${subSubFieldName}`, dependencies);
}
}
}
else if ((0, graphql_1.isAbstractType)(namedFieldType)) {
const subFieldResolverOperationNodes = [];
for (const possibleType of fusiongraph.getPossibleTypes(namedFieldType)) {
const { newFieldNode: newSubFieldNode, resolverOperationNodes: subFieldResolverOperationNodesForPossibleType, } = visitFieldNodeForTypeResolvers(parentSubgraph, subFieldNode, possibleType, fusiongraph, ctx);
subFieldNode = newSubFieldNode;
subFieldResolverOperationNodes.push(...subFieldResolverOperationNodesForPossibleType);
}
}
newFieldSelectionSet.selections.push(subFieldNode);
continue;
}
const sourceDirective = sourceDirectives[0];
const subgraph = sourceDirective?.args?.subgraph;
const fieldNameInParent = fieldDefInType.name;
const fieldAliasInParent = subFieldNode.alias?.value ?? fieldNameInParent;
const nameInSubgraph = sourceDirective?.args?.name ?? fieldNameInParent;
if (nameInSubgraph !== fieldNameInParent || fieldNameInParent !== fieldAliasInParent) {
subFieldNode = {
...subFieldNode,
name: {
kind: graphql_1.Kind.NAME,
value: nameInSubgraph,
},
alias: {
kind: graphql_1.Kind.NAME,
value: fieldAliasInParent,
},
};
}
// Handle field resolvers
const resolverDirective = fieldDirectives.find(d => d.name === 'resolver')?.args;
if (resolverDirective) {
const variableDirectives = fieldDirectives
.filter(d => d.name === 'variable')
.map(d => d.args);
const resolverSelections = subFieldNode.selectionSet?.selections ?? [];
const { resolverOperationString, resolverKind } = resolveResolverOperationStringAndKind(fusiongraph, resolverDirective);
const { newFieldNode: newFieldNodeForSubgraph, resolverOperationDocument, resolvedFieldPath, batch, defer, } = createResolveNode({
parentSubgraph,
fieldNode: newFieldNode,
resolverOperationString,
resolverKind,
variableDirectives,
resolverSelections,
resolverArguments: subFieldNode.arguments,
ctx,
});
newFieldNode = newFieldNodeForSubgraph;
const fieldResolveFieldDependencyMap = new Map();
const fieldSubgraph = resolverDirective.subgraph;
const fieldResolverDependencies = [];
const fieldResolverOperationNodes = [
{
subgraph: fieldSubgraph,
resolverOperationDocument,
resolverDependencies: fieldResolverDependencies,
resolverDependencyFieldMap: fieldResolveFieldDependencyMap,
resolverPreDependencies: [],
batch,
defer: defer || subFieldNode.defer || newFieldNode.defer,
},
];
if ((0, graphql_1.isObjectType)(namedFieldType)) {
let resolverOperationResolvedFieldNode = lodash_1.default.get(resolverOperationDocument, resolvedFieldPath);
resolverOperationResolvedFieldNode.defer =
defer || subFieldNode.defer || newFieldNode.defer;
const { newFieldNode: newResolvedFieldNode, resolverOperationNodes: subFieldResolverOperationNodes, resolverDependencyFieldMap: newFieldResolverDependencyMap, } = visitFieldNodeForTypeResolvers(fieldSubgraph, resolverOperationResolvedFieldNode, namedFieldType, fusiongraph, ctx);
resolverOperationResolvedFieldNode = newResolvedFieldNode;
for (const [fieldName, dependencies] of newFieldResolverDependencyMap.entries()) {
let existingDependencies = fieldResolveFieldDependencyMap.get(fieldName);
if (!existingDependencies) {
existingDependencies = [];
fieldResolveFieldDependencyMap.set(fieldName, existingDependencies);
}
existingDependencies.push(...dependencies);
}
fieldResolverDependencies.push(...subFieldResolverOperationNodes);
lodash_1.default.set(resolverOperationDocument, resolvedFieldPath, resolverOperationResolvedFieldNode);
}
else if ((0, graphql_1.isAbstractType)(namedFieldType)) {
let resolverOperationResolvedFieldNode = lodash_1.default.get(resolverOperationDocument, resolvedFieldPath);
resolverOperationResolvedFieldNode.defer =
defer || subFieldNode.defer || newFieldNode.defer;
for (const possibleType of fusiongraph.getPossibleTypes(namedFieldType)) {
const { newFieldNode: newResolvedFieldNode, resolverOperationNodes: subFieldResolverOperationNodes, resolverDependencyFieldMap: newFieldResolverDependencyMap, } = visitFieldNodeForTypeResolvers(fieldSubgraph, resolverOperationResolvedFieldNode, possibleType, fusiongraph, ctx);
resolverOperationResolvedFieldNode = newResolvedFieldNode;
fieldResolverDependencies.push(...subFieldResolverOperationNodes);
for (const [fieldName, dependencies] of newFieldResolverDependencyMap.entries()) {
let existingDependencies = fieldResolveFieldDependencyMap.get(fieldName);
if (!existingDependencies) {
existingDependencies = [];
fieldResolveFieldDependencyMap.set(fieldName, existingDependencies);
}
existingDependencies.push(...dependencies);
}
}
lodash_1.default.set(resolverOperationDocument, resolvedFieldPath, resolverOperationResolvedFieldNode);
}
resolverDependencyFieldMap.set(fieldAliasInParent, fieldResolverOperationNodes);
}
else {
if (!subgraph) {
throw new Error(`No subgraph found for ${subFieldNode.name.value}`);
}
resolverSelectionsBySubgraph[subgraph] ||= [];
resolverSelectionsBySubgraph[subgraph].push(subFieldNode);
const variableDirectives = fieldDirectives
.filter(d => d.name === 'variable')
.map(d => d.args);
variablesByResolverSelection.set(subFieldNode, variableDirectives);
}
}
for (const fieldSubgraph in resolverSelectionsBySubgraph) {
const resolverDirective = typeDirectives.find(d => d.name === 'resolver' && d.args?.subgraph === fieldSubgraph)?.args;
if (!resolverDirective) {
throw new Error(`No resolver directive found for ${fieldSubgraph}`);
}
const resolverSelections = resolverSelectionsBySubgraph[fieldSubgraph];
const variableDirectives = typeDirectives
.filter(d => d.name === 'variable')
.map(d => d.args);
for (const resolverSelection of resolverSelections) {
const selectionVariables = variablesByResolverSelection.get(resolverSelection);
if (selectionVariables) {
variableDirectives.push(...selectionVariables);
}
}
const { resolverOperationString, resolverKind } = resolveResolverOperationStringAndKind(fusiongraph, resolverDirective);
const { newFieldNode: newFieldNodeForSubgraph, resolverOperationDocument, variablesFromDifferentSubgraph, batch, defer, } = createResolveNode({
parentSubgraph,
fieldNode: newFieldNode,
resolverOperationString,
resolverKind,
variableDirectives,
resolverSelections,
resolverArguments: newFieldNode.arguments,
ctx,
});
newFieldNode = newFieldNodeForSubgraph;
const resolverDependencyFieldMap = new Map();
const resolverPreDependencies = [];
resolverOperationNodes.push({
subgraph: fieldSubgraph,
resolverOperationDocument,
resolverDependencies: [],
resolverPreDependencies,
resolverDependencyFieldMap,
batch,
defer: defer || newFieldNode.defer,
});
// TODO: Test this more
for (const { variableDirective: varDirectiveForDiffSubgraph, newVariableName, } of variablesFromDifferentSubgraph) {
if (varDirectiveForDiffSubgraph?.select) {
const varOp = (0, graphql_1.parse)(`{${varDirectiveForDiffSubgraph.select}}`, { noLocation: true });
const deepestFieldNodePathInVarOp = [];
(0, graphql_1.visit)(varOp, {
Field(_node, _key, _parent, path) {
if (path.length > deepestFieldNodePathInVarOp.length) {
deepestFieldNodePathInVarOp.splice(0, deepestFieldNodePathInVarOp.length, ...path);
}
},
});
const existingDeepestFieldNodeInVarOp = lodash_1.default.get(varOp, deepestFieldNodePathInVarOp);
const deepestFieldNodeInVarOp = {
...existingDeepestFieldNodeInVarOp,
alias: {
kind: graphql_1.Kind.NAME,
value: newVariableName,
},
};
lodash_1.default.set(varOp, deepestFieldNodePathInVarOp, deepestFieldNodeInVarOp);
const varOpSelectionSet = lodash_1.default.get(varOp, 'definitions.0.selectionSet');
const typeResolverForSubgraph = typeDirectives.find(d => d.name === 'resolver' && d.args?.subgraph === varDirectiveForDiffSubgraph.subgraph);
const resolverKind = typeResolverForSubgraph?.args?.kind || 'FETCH';
const resolverOperationString = typeResolverForSubgraph?.args?.operation;
const { resolverOperationDocument, newFieldNode: newFieldNodeForVar, batch, defer, } = createResolveNode({
parentSubgraph,
resolverSelections: varOpSelectionSet.selections,
resolverArguments: [],
fieldNode: newFieldNode,
resolverOperationString,
resolverKind,
variableDirectives: typeDirectives
.filter(d => d.name === 'variable')
.map(d => d.args),
ctx,
});
newFieldNode = newFieldNodeForVar;
resolverPreDependencies.push({
subgraph: typeResolverForSubgraph.args.subgraph,
resolverOperationDocument,
resolverDependencies: [],
resolverPreDependencies: [],
resolverDependencyFieldMap: new Map(),
batch,
defer,
});
}
}
for (const resolverSelectionIndex in resolverSelections) {
const resolverSubFieldNode = resolverSelections[resolverSelectionIndex];
const resolverSubFieldName = resolverSubFieldNode.name.value;
const resolverSubAliasName = resolverSubFieldNode.alias?.value ?? resolverSubFieldName;
const fieldType = typeFieldMap[resolverSubFieldName]?.type;
if (!fieldType) {
// Might be aliased by @source directive
continue;
}
const namedSelectionType = (0, graphql_1.getNamedType)(fieldType);
if ((0, graphql_1.isObjectType)(namedSelectionType)) {
const { newFieldNode: newSubFieldNode, resolverOperationNodes: subFieldResolverOperationNodes, resolverDependencyFieldMap: subFieldResolverDependencyMap, } = visitFieldNodeForTypeResolvers(fieldSubgraph, resolverSubFieldNode, namedSelectionType, fusiongraph, ctx);
resolverSelections[resolverSelectionIndex] = newSubFieldNode;
if (subFieldResolverOperationNodes.length) {
resolverDependencyFieldMap.set(resolverSubAliasName, subFieldResolverOperationNodes);
}
for (const [subSubFieldName, dependencies] of subFieldResolverDependencyMap.entries()) {
if (dependencies.length) {
resolverDependencyFieldMap.set(`${resolverSubAliasName}.${subSubFieldName}`, dependencies);
}
}
}
else if ((0, graphql_1.isAbstractType)(namedSelectionType)) {
const subFieldResolverOperationNodes = [];
for (const possibleType of fusiongraph.getPossibleTypes(namedSelectionType)) {
const { newFieldNode: newSubFieldNode, resolverOperationNodes: subFieldResolverOperationNodes, } = visitFieldNodeForTypeResolvers(fieldSubgraph, resolverSelections[resolverSelectionIndex], possibleType, fusiongraph, ctx);
resolverSelections[resolverSelectionIndex] = newSubFieldNode;
subFieldResolverOperationNodes.push(...subFieldResolverOperationNodes);
}
resolverDependencyFieldMap.set(resolverSubAliasName, subFieldResolverOperationNodes);
}
}
}
return {
newFieldNode,
resolverOperationNodes,
resolverDependencyFieldMap,
};
}
exports.visitFieldNodeForTypeResolvers = visitFieldNodeForTypeResolvers;