Function isThisless

test/fixtures/snapshot/typescript.js:57612–57630

* Returns true if the class or interface member given by the symbol is free of "this" references. The * function may return false for symbols that are actually free of "this" references because it is not * feasible to perform a complete analysis in all cases. In particular, propert

(symbol)

         * assumed not to be free of "this" references.
         */
        function isThisless(symbol) {
            if (symbol.declarations && symbol.declarations.length === 1) {
                var declaration = symbol.declarations[0];
                if (declaration) {
                    switch (declaration.kind) {
                        case 167 /* SyntaxKind.PropertyDeclaration */:
                        case 166 /* SyntaxKind.PropertySignature */:
                            return isThislessVariableLikeDeclaration(declaration);
                        case 169 /* SyntaxKind.MethodDeclaration */:
                        case 168 /* SyntaxKind.MethodSignature */:
                        case 171 /* SyntaxKind.Constructor */:
                        case 172 /* SyntaxKind.GetAccessor */:
                        case 173 /* SyntaxKind.SetAccessor */:
                            return isThislessFunctionLikeDeclaration(declaration);
                    }
                }
            }
            return false;
        }
        // The mappingThisOnly flag indicates that the only type parameter being mapped is "this". When the flag is true,
        // we check symbols to see if we can quickly conclude they are free of "this" references, thus needing no instantiation.
        function createInstantiatedSymbolTable(symbols, mapper, mappingThisOnly) {