Function assignParameterType

test/fixtures/snapshot/typescript.js:77739–77755

(parameter, type)

            }
        }
        function assignParameterType(parameter, type) {
            var links = getSymbolLinks(parameter);
            if (!links.type) {
                var declaration = parameter.valueDeclaration;
                links.type = type || (declaration ? getWidenedTypeForVariableLikeDeclaration(declaration, /*reportErrors*/ true) : getTypeOfSymbol(parameter));
                if (declaration && declaration.name.kind !== 79 /* SyntaxKind.Identifier */) {
                    // if inference didn't come up with anything but unknown, fall back to the binding pattern if present.
                    if (links.type === unknownType) {
                        links.type = getTypeFromBindingPattern(declaration.name);
                    }
                    assignBindingElementTypes(declaration.name, links.type);
                }
            }
            else if (type) {
                ts.Debug.assertEqual(links.type, type, "Parameter symbol already has a cached type which differs from newly assigned type");
            }
        }
        // When contextual typing assigns a type to a parameter that contains a binding pattern, we also need to push
        // the destructured type into the contained binding elements.
        function assignBindingElementTypes(pattern, parentType) {