Function getDefinitionAtPosition

test/fixtures/snapshot/typescript.js:139664–139781

(program, sourceFile, position, searchOtherFilesOnly, stopAtAlias)

    var GoToDefinition;
    (function (GoToDefinition) {
        function getDefinitionAtPosition(program, sourceFile, position, searchOtherFilesOnly, stopAtAlias) {
            var _a;
            var _b;
            var resolvedRef = getReferenceAtPosition(sourceFile, position, program);
            var fileReferenceDefinition = resolvedRef && [getDefinitionInfoForFileReference(resolvedRef.reference.fileName, resolvedRef.fileName, resolvedRef.unverified)] || ts.emptyArray;
            if (resolvedRef === null || resolvedRef === void 0 ? void 0 : resolvedRef.file) {
                // If `file` is missing, do a symbol-based lookup as well
                return fileReferenceDefinition;
            }
            var node = ts.getTouchingPropertyName(sourceFile, position);
            if (node === sourceFile) {
                return undefined;
            }
            var parent = node.parent;
            var typeChecker = program.getTypeChecker();
            if (node.kind === 159 /* SyntaxKind.OverrideKeyword */ || (ts.isJSDocOverrideTag(node) && ts.rangeContainsPosition(node.tagName, position))) {
                return getDefinitionFromOverriddenMember(typeChecker, node) || ts.emptyArray;
            }
            // Labels
            if (ts.isJumpStatementTarget(node)) {
                var label = ts.getTargetLabel(node.parent, node.text);
                return label ? [createDefinitionInfoFromName(typeChecker, label, "label" /* ScriptElementKind.label */, node.text, /*containerName*/ undefined)] : undefined; // TODO: GH#18217
            }
            if (ts.isStaticModifier(node) && ts.isClassStaticBlockDeclaration(node.parent)) {
                var classDecl = node.parent.parent;
                var _c = getSymbol(classDecl, typeChecker, stopAtAlias), symbol_1 = _c.symbol, failedAliasResolution_1 = _c.failedAliasResolution;
                var staticBlocks = ts.filter(classDecl.members, ts.isClassStaticBlockDeclaration);
                var containerName_1 = symbol_1 ? typeChecker.symbolToString(symbol_1, classDecl) : "";
                var sourceFile_1 = node.getSourceFile();
                return ts.map(staticBlocks, function (staticBlock) {
                    var pos = ts.moveRangePastModifiers(staticBlock).pos;
                    pos = ts.skipTrivia(sourceFile_1.text, pos);
                    return createDefinitionInfoFromName(typeChecker, staticBlock, "constructor" /* ScriptElementKind.constructorImplementationElement */, "static {}", containerName_1, /*unverified*/ false, failedAliasResolution_1, { start: pos, length: "static".length });
                });
            }
            var _d = getSymbol(node, typeChecker, stopAtAlias), symbol = _d.symbol, failedAliasResolution = _d.failedAliasResolution;
            var fallbackNode = node;
            if (searchOtherFilesOnly && failedAliasResolution) {
                // We couldn't resolve the specific import, try on the module specifier.
                var importDeclaration = ts.forEach(__spreadArray([node], (symbol === null || symbol === void 0 ? void 0 : symbol.declarations) || ts.emptyArray, true), function (n) { return ts.findAncestor(n, ts.isAnyImportOrBareOrAccessedRequire); });
                var moduleSpecifier = importDeclaration && ts.tryGetModuleSpecifierFromDeclaration(importDeclaration);
                if (moduleSpecifier) {
                    (_a = getSymbol(moduleSpecifier, typeChecker, stopAtAlias), symbol = _a.symbol, failedAliasResolution = _a.failedAliasResolution);
                    fallbackNode = moduleSpecifier;
                }
            }
            if (!symbol && ts.isModuleSpecifierLike(fallbackNode)) {
                // We couldn't resolve the module specifier as an external module, but it could
                // be that module resolution succeeded but the target was not a module.
                var ref = (_b = sourceFile.resolvedModules) === null || _b === void 0 ? void 0 : _b.get(fallbackNode.text, ts.getModeForUsageLocation(sourceFile, fallbackNode));
                if (ref) {
                    return [{
                            name: fallbackNode.text,
                            fileName: ref.resolvedFileName,
                            containerName: undefined,
                            containerKind: undefined,
                            kind: "script" /* ScriptElementKind.scriptElement */,
                            textSpan: ts.createTextSpan(0, 0),