Function inferStructuralType

test/fixtures/snapshot/typescript.js:157373–157386

(usage)

                return types;
            }
            function inferStructuralType(usage) {
                var members = new ts.Map();
                if (usage.properties) {
                    usage.properties.forEach(function (u, name) {
                        var symbol = checker.createSymbol(4 /* SymbolFlags.Property */, name);
                        symbol.type = combineFromUsage(u);
                        members.set(name, symbol);
                    });
                }
                var callSignatures = usage.calls ? [getSignatureFromCalls(usage.calls)] : [];
                var constructSignatures = usage.constructs ? [getSignatureFromCalls(usage.constructs)] : [];
                var indexInfos = usage.stringIndex ? [checker.createIndexInfo(checker.getStringType(), combineFromUsage(usage.stringIndex), /*isReadonly*/ false)] : [];
                return checker.createAnonymousType(/*symbol*/ undefined, members, callSignatures, constructSignatures, indexInfos);
            }
            function inferNamedTypesFromProperties(usage) {
                if (!usage.properties || !usage.properties.size)
                    return [];