Function isReadonlySymbol

test/fixtures/snapshot/typescript.js:78290–78304

(symbol)

            return !setProp;
        }
        function isReadonlySymbol(symbol) {
            // The following symbols are considered read-only:
            // Properties with a 'readonly' modifier
            // Variables declared with 'const'
            // Get accessors without matching set accessors
            // Enum members
            // Object.defineProperty assignments with writable false or no setter
            // Unions and intersections of the above (unions and intersections eagerly set isReadonly on creation)
            return !!(ts.getCheckFlags(symbol) & 8 /* CheckFlags.Readonly */ ||
                symbol.flags & 4 /* SymbolFlags.Property */ && ts.getDeclarationModifierFlagsFromSymbol(symbol) & 64 /* ModifierFlags.Readonly */ ||
                symbol.flags & 3 /* SymbolFlags.Variable */ && getDeclarationNodeFlagsFromSymbol(symbol) & 2 /* NodeFlags.Const */ ||
                symbol.flags & 98304 /* SymbolFlags.Accessor */ && !(symbol.flags & 65536 /* SymbolFlags.SetAccessor */) ||
                symbol.flags & 8 /* SymbolFlags.EnumMember */ ||
                ts.some(symbol.declarations, isReadonlyAssignmentDeclaration));
        }
        function isAssignmentToReadonlyEntity(expr, symbol, assignmentKind) {
            var _a, _b;
            if (assignmentKind === 0 /* AssignmentKind.None */) {