super-graph/internal/serv/web/build/static/media/getHoverInformation.js.d941...

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2020-04-11 08:45:06 +02:00
/**
* Copyright (c) Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow
*/
/**
* Ported from codemirror-graphql
* https://github.com/graphql/codemirror-graphql/blob/master/src/info.js
*/
import type {GraphQLSchema} from 'graphql';
import type {ContextToken} from 'graphql-language-service-types';
import type {Hover} from 'vscode-languageserver-types';
import type {Position} from 'graphql-language-service-utils';
import {getTokenAtPosition, getTypeInfo} from './getAutocompleteSuggestions';
import {GraphQLNonNull, GraphQLList} from 'graphql';
export function getHoverInformation(
schema: GraphQLSchema,
queryText: string,
cursor: Position,
contextToken?: ContextToken,
): Hover.contents {
const token = contextToken || getTokenAtPosition(queryText, cursor);
if (!schema || !token || !token.state) {
return [];
}
const state = token.state;
const kind = state.kind;
const step = state.step;
const typeInfo = getTypeInfo(schema, token.state);
const options = {schema};
// Given a Schema and a Token, produce the contents of an info tooltip.
// To do this, create a div element that we will render "into" and then pass
// it to various rendering functions.
if (
(kind === 'Field' && step === 0 && typeInfo.fieldDef) ||
(kind === 'AliasedField' && step === 2 && typeInfo.fieldDef)
) {
const into = [];
renderField(into, typeInfo, options);
renderDescription(into, options, typeInfo.fieldDef);
return into.join('').trim();
} else if (kind === 'Directive' && step === 1 && typeInfo.directiveDef) {
const into = [];
renderDirective(into, typeInfo, options);
renderDescription(into, options, typeInfo.directiveDef);
return into.join('').trim();
} else if (kind === 'Argument' && step === 0 && typeInfo.argDef) {
const into = [];
renderArg(into, typeInfo, options);
renderDescription(into, options, typeInfo.argDef);
return into.join('').trim();
} else if (
kind === 'EnumValue' &&
typeInfo.enumValue &&
typeInfo.enumValue.description
) {
const into = [];
renderEnumValue(into, typeInfo, options);
renderDescription(into, options, typeInfo.enumValue);
return into.join('').trim();
} else if (
kind === 'NamedType' &&
typeInfo.type &&
typeInfo.type.description
) {
const into = [];
renderType(into, typeInfo, options, typeInfo.type);
renderDescription(into, options, typeInfo.type);
return into.join('').trim();
}
}
function renderField(into, typeInfo, options) {
renderQualifiedField(into, typeInfo, options);
renderTypeAnnotation(into, typeInfo, options, typeInfo.type);
}
function renderQualifiedField(into, typeInfo, options) {
if (!typeInfo.fieldDef) {
return;
}
const fieldName = (typeInfo.fieldDef.name: string);
if (fieldName.slice(0, 2) !== '__') {
renderType(into, typeInfo, options, typeInfo.parentType);
text(into, '.');
}
text(into, fieldName);
}
function renderDirective(into, typeInfo, options) {
if (!typeInfo.directiveDef) {
return;
}
const name = '@' + typeInfo.directiveDef.name;
text(into, name);
}
function renderArg(into, typeInfo, options) {
if (typeInfo.directiveDef) {
renderDirective(into, typeInfo, options);
} else if (typeInfo.fieldDef) {
renderQualifiedField(into, typeInfo, options);
}
if (!typeInfo.argDef) {
return;
}
const name = typeInfo.argDef.name;
text(into, '(');
text(into, name);
renderTypeAnnotation(into, typeInfo, options, typeInfo.inputType);
text(into, ')');
}
function renderTypeAnnotation(into, typeInfo, options, t) {
text(into, ': ');
renderType(into, typeInfo, options, t);
}
function renderEnumValue(into, typeInfo, options) {
if (!typeInfo.enumValue) {
return;
}
const name = typeInfo.enumValue.name;
renderType(into, typeInfo, options, typeInfo.inputType);
text(into, '.');
text(into, name);
}
function renderType(into, typeInfo, options, t) {
if (!t) {
return;
}
if (t instanceof GraphQLNonNull) {
renderType(into, typeInfo, options, t.ofType);
text(into, '!');
} else if (t instanceof GraphQLList) {
text(into, '[');
renderType(into, typeInfo, options, t.ofType);
text(into, ']');
} else {
text(into, t.name);
}
}
function renderDescription(into, options, def) {
if (!def) {
return;
}
const description =
typeof def.description === 'string' ? def.description : null;
if (description) {
text(into, '\n\n');
text(into, description);
}
renderDeprecation(into, options, def);
}
function renderDeprecation(into, options, def) {
if (!def) {
return;
}
const reason =
typeof def.deprecationReason === 'string' ? def.deprecationReason : null;
if (!reason) {
return;
}
text(into, '\n\n');
text(into, 'Deprecated: ');
text(into, reason);
}
function text(into: string[], content: string) {
into.push(content);
}