This change rewrites simple and safe Expression<Func<T, U>> expressions
into accesses to readonly fields. This allows us to cache the actual
expression and avoid repeatedly allocating and compiling it.
The rewrite is limited to cases where we know that the expression doesn't
capture, and where we support that kind of expression for evaluating
viewdata. In practice this means 'indentity' and property accessors are
allowed.
- #2994
- Affects both HtmlHelper and TagHelper scenarios
- Checkboxes not enclosed in a form will generate inline hidden tags
- Added necessary properties to FormContext
- Added some functional and unit tests
- aspnet/Mvc#3138 part 2/2
- request's Content-Type header must be a subset of what an `IInputFormatter` can consume
- `[Consumes]` is similar
- what an `IOutputFormatter` produces must be a subset of the request's Accept header
- `FormatFilter` and `ObjectResult` are similar
- `ObjectResult` no longer falls back to `Content-Type` header if no `Accept` value is acceptable
- left `WebApiCompatShim` code alone for consistency with down-level `System.Net.Http.Formatting`
- correct tests to match new behaviour
- do not test `Accept` values containing a `charset` parameter; that case is not valid
WIP:
- four test failures; something about comparing media types w/ charset included
- why do some localization tests fail in VS?
nits:
- add `InputFormatterTests`
- add / update comments and doc comments
- correct xUnit attributes in `ActionResultTest`; odd it doesn't show up in command-line runs
Just some small cleanup. Did a search and all of our other custom List-ish
things inherit either Collection<T> or ReadOnlyCollection<T>.
Still no good solution for dictionaries.
- Make ViewExecutor a service
- Add facades for ViewResult/PartialViewResult
- Add eventing for ViewFound/NotFound in PartialViewResult
- Add eventing around view execution
- Cleanup of some various eventing & our tests code
This change fixes call sites on the main request path for a simple site
(model binding, validation, views) that allocate boxed list enumerators.
Some cases aren't addressed by this change because the fix is too invasive
or requires changing an important contract to take IList instead of
IEnumerable. Will follow up on those case by case in order of importance.
- #2969
- add `ModelBindingMessages` for configuration and `IBindingMetadataProvider` overrides
- use `interface` to avoid `new` oddities when adding a setter to an `abstract` property
- add `IModelBindingMessages` to `ModelMetadata` for use in rest of the product code
- plumb the various bits through the system
- add integration tests using a custom `IBindingMetadataProvider`s to override messages
nits:
- remove unused resources
- use `AttemptedValue` and not `model` in `SimpleTypeModelBinder`
This change works around two mono issues that are blocking travis. I'd
like to have tests skip instead, but unfortunately that would mean not
running any validation tests on mono so this seems better.
- RuntimeHelpers.GetHashCode will sometimes crash the runtime
- PropertyHelper sometimes returns throws null-ref
- Added generic add model error and remove extensions for
ModelStateDictionary, to avoid using hard coded strings then specifying
model state dictionary keys.
- Added generic removal all extension for ModelStateDictionary, to
support removing all the model state keys for given expression.
aspnet/Mvc#3164
This solves a perf issue for views which produce content that is smaller
than the buffer size of HttpResponseStreamWriter. In this case, the writer
ends up synchronously writing to the Response as part of Dispose which
affects perf.
This change makes ViewComponentResult respect an existing Content-Type
setting on the HttpResponse. Code is very similar to the code in
ViewExector, and includes the same quirks.
Abstractions - Core MVC extensibility
Controllers - MVC implementations of .Abstractions and supporting
contracts
Infrastructure - General purpose support APIs. Metadata APIs that don't
fit clearly with a feature or with .Abstraction
[FromServices] requires modelbinding to run for each of these four
properties, which allocates a lot, and ultimately just ends up calling
GetRequiredService in the end.
Also, retrieving these services is now lazy, which should be very
beneficial as few of them aren't used often.
We don't want these extensions methods defined in a wierd namespace, it's
straightforward and future-proof to just make these strongly-typed
collections.
- #2722
- make communication of errors from formatters to `BodyModelBinder` explicit
- `JsonInputFormatter` now adds errors to `ModelStateDictionary` with correct key
- change `InputFormatter.SelectCharacterEncoding()` to add an error and return `null` when it fails
- one less `Exception` case and removes some duplicate code
nits:
- improve some doc comments (more `<inheritdoc/>`, `<paramref/>` and `<see/>`)
- add another two `BodyValidationIntegrationTests` tests
Improves authoring experience when using TagBuilder by taking advantage of
IHtmlContentBuilder an its extension methods.
TagBuilder.InnerHtml is no longer settable.
Adds a new property, FieldName, to ModelBindingContext. The FieldName is
the name of whatever code-element is being bound, regardless of what
model-prefix is in use.
This is needed for cases like the Header model binder. We always want to
use the property/parameter name and we don't care about model prefixes.
We allocate a separate list for model-binding related objects when we
create the resource filter contexts, and these lists then live the
lifetime of the request. These *may* be modified by user code in
filters as a supported feature, but rarely are changed in practice.
This change adds a simple CopyOnWriteList implementation to reduce the
amount of copying that's actually done.
- The corresponding Razor change results in `HelperResult`s being rendered with async lambdas.
- This change enables `TagHelper`s and other async code to exist inside of `HelperResult` blocks.
- Added test to validate Templates (they generate `HelperResult`s) can utilize `TagHelper`s correctly.
- Rename `RazorPage`s `RenderBodyDelegate` to `RenderBodyDelegateAsync`.
aspnet/Razor#494
- #2993
- use `ClosedGenericMatcher` to handle e.g. non-generic model types implementing requested interfaces
- reduce `IsAssignableFrom()` use since created binders use explicit casts i.e. handle explicit implementations
- also add more integration tests covering various collection key formats, some with validation errors
- merge a few `[Fact]`s into `[Theory]`s
The copy constructor is chaining to the wrong constructor. This results in
an extra 8 allocations of ModelStateDictionary per-request. All of the
various filter contexts inherit from ActionContext, that's how you get the
8 extras.
Small problem but easy fix.
- #2992
- use new properties to replace common helper methods
- still a few `Nullable.GetUnderlyingType()` calls
- creating `ModelMetadata` or sites lacking `ModelMetadata` access e.g. `ModelBindingHelper.ConvertTo()`
- #2905
- override `Order` implementation inherited from `TagHelper`
- only exception is `UrlResolutionTagHelper` which already overrides `Order` to execute much earlier