| 1 | {"version":3,"file":"graphql-tag.umd.js","sources":["../src/index.ts"],"sourcesContent":["import { parse } from 'graphql';\n\nimport {\n DocumentNode,\n DefinitionNode,\n Location,\n} from 'graphql/language/ast';\n\n// A map docString -> graphql document\nconst docCache = new Map<string, DocumentNode>();\n\n// A map fragmentName -> [normalized source]\nconst fragmentSourceMap = new Map<string, Set<string>>();\n\nlet printFragmentWarnings = true;\nlet experimentalFragmentVariables = false;\n\n// Strip insignificant whitespace\n// Note that this could do a lot more, such as reorder fields etc.\nfunction normalize(string: string) {\n return string.replace(/[\\s,]+/g, ' ').trim();\n}\n\nfunction cacheKeyFromLoc(loc: Location) {\n return normalize(loc.source.body.substring(loc.start, loc.end));\n}\n\n// Take a unstripped parsed document (query/mutation or even fragment), and\n// check all fragment definitions, checking for name->source uniqueness.\n// We also want to make sure only unique fragments exist in the document.\nfunction processFragments(ast: DocumentNode) {\n const seenKeys = new Set<string>();\n const definitions: DefinitionNode[] = [];\n\n ast.definitions.forEach(fragmentDefinition => {\n if (fragmentDefinition.kind === 'FragmentDefinition') {\n var fragmentName = fragmentDefinition.name.value;\n var sourceKey = cacheKeyFromLoc(fragmentDefinition.loc!);\n\n // We know something about this fragment\n let sourceKeySet = fragmentSourceMap.get(fragmentName)!;\n if (sourceKeySet && !sourceKeySet.has(sourceKey)) {\n // this is a problem because the app developer is trying to register another fragment with\n // the same name as one previously registered. So, we tell them about it.\n if (printFragmentWarnings) {\n console.warn(\"Warning: fragment with name \" + fragmentName + \" already exists.\\n\"\n + \"graphql-tag enforces all fragment names across your application to be unique; read more about\\n\"\n + \"this in the docs: http://dev.apollodata.com/core/fragments.html#unique-names\");\n }\n } else if (!sourceKeySet) {\n fragmentSourceMap.set(fragmentName, sourceKeySet = new Set);\n }\n\n sourceKeySet.add(sourceKey);\n\n if (!seenKeys.has(sourceKey)) {\n seenKeys.add(sourceKey);\n definitions.push(fragmentDefinition);\n }\n } else {\n definitions.push(fragmentDefinition);\n }\n });\n\n return {\n ...ast,\n definitions,\n };\n}\n\nfunction stripLoc(doc: DocumentNode) {\n const workSet = new Set<Record<string, any>>(doc.definitions);\n\n workSet.forEach(node => {\n if (node.loc) delete node.loc;\n Object.keys(node).forEach(key => {\n const value = node[key];\n if (value && typeof value === 'object') {\n workSet.add(value);\n }\n });\n });\n\n const loc = doc.loc as Record<string, any>;\n if (loc) {\n delete loc.startToken;\n delete loc.endToken;\n }\n\n return doc;\n}\n\nfunction parseDocument(source: string) {\n var cacheKey = normalize(source);\n if (!docCache.has(cacheKey)) {\n const parsed = parse(source, {\n experimentalFragmentVariables,\n allowLegacyFragmentVariables: experimentalFragmentVariables,\n } as any);\n if (!parsed || parsed.kind !== 'Document') {\n throw new Error('Not a valid GraphQL document.');\n }\n docCache.set(\n cacheKey,\n // check that all \"new\" fragments inside the documents are consistent with\n // existing fragments of the same name\n stripLoc(processFragments(parsed)),\n );\n }\n return docCache.get(cacheKey)!;\n}\n\n// XXX This should eventually disallow arbitrary string interpolation, like Relay does\nexport function gql(\n literals: string | readonly string[],\n ...args: any[]\n) {\n\n if (typeof literals === 'string') {\n literals = [literals];\n }\n\n let result = literals[0];\n\n args.forEach((arg, i) => {\n if (arg && arg.kind === 'Document') {\n result += arg.loc.source.body;\n } else {\n result += arg;\n }\n result += literals[i + 1];\n });\n\n return parseDocument(result);\n}\n\nexport function resetCaches() {\n docCache.clear();\n fragmentSourceMap.clear();\n}\n\nexport function disableFragmentWarnings() {\n printFragmentWarnings = false;\n}\n\nexport function enableExperimentalFragmentVariables() {\n experimentalFragmentVariables = true;\n}\n\nexport function disableExperimentalFragmentVariables() {\n experimentalFragmentVariables = false;\n}\n\nconst extras = {\n gql,\n resetCaches,\n disableFragmentWarnings,\n enableExperimentalFragmentVariables,\n disableExperimentalFragmentVariables,\n};\n\nexport namespace gql {\n export const {\n gql,\n resetCaches,\n disableFragmentWarnings,\n enableExperimentalFragmentVariables,\n disableExperimentalFragmentVariables,\n } = extras;\n}\n\ngql.default = gql;\n\nexport default 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