apollo-language-server
Version:
A language server for Apollo GraphQL projects
116 lines • 4.82 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.getASTNodeAndTypeInfoAtPosition = exports.positionToOffset = exports.positionFromSourceLocation = exports.rangeForASTNode = exports.rangeInContainingDocument = exports.positionInContainingDocument = exports.positionFromPositionInContainingDocument = exports.visitWithTypeInfo = void 0;
const graphql_1 = require("graphql");
const location_1 = require("graphql/language/location");
const vscode_languageserver_1 = require("vscode-languageserver");
const graphql_2 = require("./graphql");
function visitWithTypeInfo(typeInfo, visitor) {
return {
enter(node) {
typeInfo.enter(node);
const fn = (0, graphql_1.getVisitFn)(visitor, node.kind, false);
if (fn) {
const result = fn.apply(visitor, arguments);
if (result !== undefined) {
typeInfo.leave(node);
if ((0, graphql_2.isNode)(result)) {
typeInfo.enter(result);
}
}
return result;
}
},
leave(node) {
const fn = (0, graphql_1.getVisitFn)(visitor, node.kind, true);
let result;
if (fn) {
result = fn.apply(visitor, arguments);
}
if (result !== graphql_1.BREAK) {
typeInfo.leave(node);
}
return result;
},
};
}
exports.visitWithTypeInfo = visitWithTypeInfo;
function positionFromPositionInContainingDocument(source, position) {
if (!source.locationOffset)
return position;
return vscode_languageserver_1.Position.create(position.line - (source.locationOffset.line - 1), position.character);
}
exports.positionFromPositionInContainingDocument = positionFromPositionInContainingDocument;
function positionInContainingDocument(source, position) {
if (!source.locationOffset)
return position;
return vscode_languageserver_1.Position.create(source.locationOffset.line - 1 + position.line, position.character);
}
exports.positionInContainingDocument = positionInContainingDocument;
function rangeInContainingDocument(source, range) {
if (!source.locationOffset)
return range;
return vscode_languageserver_1.Range.create(positionInContainingDocument(source, range.start), positionInContainingDocument(source, range.end));
}
exports.rangeInContainingDocument = rangeInContainingDocument;
function rangeForASTNode(node) {
const location = node.loc;
const source = location.source;
return vscode_languageserver_1.Range.create(positionFromSourceLocation(source, (0, location_1.getLocation)(source, location.start)), positionFromSourceLocation(source, (0, location_1.getLocation)(source, location.end)));
}
exports.rangeForASTNode = rangeForASTNode;
function positionFromSourceLocation(source, location) {
return vscode_languageserver_1.Position.create((source.locationOffset ? source.locationOffset.line - 1 : 0) +
location.line -
1, (source.locationOffset && location.line === 1
? source.locationOffset.column - 1
: 0) +
location.column -
1);
}
exports.positionFromSourceLocation = positionFromSourceLocation;
function positionToOffset(source, position) {
const lineRegexp = /\r\n|[\n\r]/g;
const lineEndingLength = /\r\n/g.test(source.body) ? 2 : 1;
const linesUntilPosition = source.body
.split(lineRegexp)
.slice(0, position.line);
return (position.character +
linesUntilPosition
.map((line) => line.length + lineEndingLength)
.reduce((a, b) => a + b, 0));
}
exports.positionToOffset = positionToOffset;
function getASTNodeAndTypeInfoAtPosition(source, position, root, schema) {
const offset = positionToOffset(source, position);
let nodeContainingPosition = null;
const typeInfo = new graphql_1.TypeInfo(schema);
(0, graphql_1.visit)(root, visitWithTypeInfo(typeInfo, {
enter(node) {
if (node.kind !== graphql_1.Kind.NAME &&
node.loc &&
node.loc.start <= offset &&
offset <= node.loc.end) {
nodeContainingPosition = node;
}
else {
return false;
}
return;
},
leave(node) {
if (node.loc && node.loc.start <= offset && offset <= node.loc.end) {
return graphql_1.BREAK;
}
return;
},
}));
if (nodeContainingPosition) {
return [nodeContainingPosition, typeInfo];
}
else {
return null;
}
}
exports.getASTNodeAndTypeInfoAtPosition = getASTNodeAndTypeInfoAtPosition;
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