Revamp codegen, fixing inconscpicuous bugs.
This commit completely revamps the way that codegen handles route URI
"parameters". The changes are largely internal. In summary, codegen code
is better organized, better written, and less subject to error.
There are three breaking changes:
* `path` is now `uri` in `route` attribute: `#[route(GET, path = "..")]`
becomes `#[route(GET, uri = "..")]`.
* the order of execution for path and query guards relative to
each-other is now unspecified
* URI normalization now normalizes the query part as well.
Several error messages were improved. A couple of bugs were fixed:
* Prior to this commit, Rocket would optimistically try to parse every
segment of a URI as an ident, in case one was needed in the future.
A bug in rustc results in codegen "panicking" if the segment
couldn't _lex_ as an ident. This panic didn't manifest until far
after expansion, unfortunately. This wasn't a problem before as we
only allowed ident-like segments (ASCII), but now that we allow any
UTF-8, the bug surfaced. This was fixed by never attempting to parse
non-idents as idents.
* Prior to this commit, it was impossible to generate typed URIs for
paths that ignored path parameters via the recently added syntax
`<_>`: the macro would panic. This was fixed by, well, handling
these ignored parameters.
Some minor additions:
* Added `RawStr::find()`, expanding its `Pattern`-based API.
* Added an internal mechanism to dynamically determine if a `UriPart`
is `Path` or `Query`.
2021-03-02 12:01:33 +00:00
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error: missing expected parameter: `uri`
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:4:1
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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4 | #[get()]
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2018-10-05 04:44:42 +00:00
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| ^^^^^^^^
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2020-02-15 11:51:40 +00:00
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= note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
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2018-10-05 04:44:42 +00:00
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error: expected `fn`
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:9:1
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9 | struct S;
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| ^^^^^^
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= help: #[get] can only be used on functions
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2018-10-05 04:44:42 +00:00
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error: expected `fn`
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:12:1
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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12 | enum A { }
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2018-10-05 04:44:42 +00:00
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| ^^^^
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= help: #[get] can only be used on functions
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error: expected `fn`
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:15:1
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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15 | trait Foo { }
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2018-10-05 04:44:42 +00:00
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| ^^^^^
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= help: #[get] can only be used on functions
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error: expected `fn`
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:18:1
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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18 | impl S { }
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2018-10-05 04:44:42 +00:00
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| ^^^^
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= help: #[get] can only be used on functions
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UTF-8 routes. Forms revamp. Temp files. Capped.
So. Many. Changes.
This is an insane commit: simultaneously one of the best (because of all
the wonderful improvements!) and one of the worst (because it is just
massive) in the project's history.
Routing:
* All UTF-8 characters are accepted everywhere in route paths. (#998)
* `path` is now `uri` in `route` attribute: `#[route(GET, path = "..")]`
becomes `#[route(GET, uri = "..")]`.
Forms Revamp
* All form related types now reside in a new `form` module.
* Multipart forms are supported. (resolves #106)
* Collections are supported in forms and queries. (resolves #205)
* Nested structures in forms and queries are supported. (resolves #313)
* Form fields can be ad-hoc validated with `#[field(validate = expr)]`.
* `FromFormValue` is now `FromFormField`, blanket implements `FromForm`.
* Form field values are always percent-decoded apriori.
Temporary Files
* A new `TempFile` data and form guard allows streaming data directly to a
file which can then be persisted.
* A new `temp_dir` config parameter specifies where to store `TempFile`.
* The limits `file` and `file/$ext`, where `$ext` is the file extension,
determines the data limit for a `TempFile`.
Capped
* A new `Capped` type is used to indicate when data has been truncated due to
incoming data limits. It allows checking whether data is complete or
truncated.
* `DataStream` methods return `Capped` types.
* `DataStream` API has been revamped to account for `Capped` types.
* Several `Capped<T>` types implement `FromData`, `FromForm`.
* HTTP 413 (Payload Too Large) errors are now returned when data limits are
exceeded. (resolves #972)
Hierarchical Limits
* Data limits are now hierarchical, delimited with `/`. A limit of `a/b/c`
falls back to `a/b` then `a`.
Core
* `&RawStr` no longer implements `FromParam`.
* `&str` implements `FromParam`, `FromData`, `FromForm`.
* `FromTransformedData` was removed.
* `FromData` gained a lifetime for use with request-local data.
* The default error HTML is more compact.
* `&Config` is a request guard.
* The `DataStream` interface was entirely revamped.
* `State` is only exported via `rocket::State`.
* A `request::local_cache!()` macro was added for storing values in
request-local cache without consideration for type uniqueness by using a
locally generated anonymous type.
* `Request::get_param()` is now `Request::param()`.
* `Request::get_segments()` is now `Request::segments()`, takes a range.
* `Request::get_query_value()` is now `Request::query_value()`, can parse any
`FromForm` including sequences.
* `std::io::Error` implements `Responder` like `Debug<std::io::Error>`.
* `(Status, R)` where `R: Responder` implements `Responder` by overriding the
`Status` of `R`.
* The name of a route is printed first during route matching.
* `FlashMessage` now only has one lifetime generic.
HTTP
* `RawStr` implements `serde::{Serialize, Deserialize}`.
* `RawStr` implements _many_ more methods, in particular, those related to the
`Pattern` API.
* `RawStr::from_str()` is now `RawStr::new()`.
* `RawStr::url_decode()` and `RawStr::url_decode_lossy()` only allocate as
necessary, return `Cow`.
* `Status` implements `Default` with `Status::Ok`.
* `Status` implements `PartialEq`, `Eq`, `Hash`, `PartialOrd`, `Ord`.
* Authority and origin part of `Absolute` can be modified with new
`Absolute::{with,set}_authority()`, `Absolute::{with,set}_origin()` methods.
* `Origin::segments()` was removed in favor of methods split into query and
path parts and into raw and decoded versions.
* The `Segments` iterator is smarter, returns decoded `&str` items.
* `Segments::into_path_buf()` is now `Segments::to_path_buf()`.
* A new `QuerySegments` is the analogous query segment iterator.
* Once set, `expires` on private cookies is not overwritten. (resolves #1506)
* `Origin::path()` and `Origin::query()` return `&RawStr`, not `&str`.
Codegen
* Preserve more spans in `uri!` macro.
* Preserve spans `FromForm` field types.
* All dynamic parameters in a query string must typecheck as `FromForm`.
* `FromFormValue` derive removed; `FromFormField` added.
* The `form` `FromForm` and `FromFormField` field attribute is now named
`field`. `#[form(field = ..)]` is now `#[field(name = ..)]`.
Contrib
* `Json` implements `FromForm`.
* `MsgPack` implements `FromForm`.
* The `json!` macro is exported as `rocket_contrib::json::json!`.
* Added clarifying docs to `StaticFiles`.
Examples
* `form_validation` and `form_kitchen_sink` removed in favor of `forms`.
* The `hello_world` example uses unicode in paths.
* The `json` example only allocates as necessary.
Internal
* Codegen uses new `exports` module with the following conventions:
- Locals starts with `__` and are lowercased.
- Rocket modules start with `_` and are lowercased.
- `std` types start with `_` and are titlecased.
- Rocket types are titlecased.
* A `header` module was added to `http`, contains header types.
* `SAFETY` is used as doc-string keyword for `unsafe` related comments.
* The `Uri` parser no longer recognizes Rocket route URIs.
2020-10-30 03:50:06 +00:00
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error: expected key/value `key = value`
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:21:12
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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21 | #[get("/", 123)]
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2018-10-05 04:44:42 +00:00
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| ^^^
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UTF-8 routes. Forms revamp. Temp files. Capped.
So. Many. Changes.
This is an insane commit: simultaneously one of the best (because of all
the wonderful improvements!) and one of the worst (because it is just
massive) in the project's history.
Routing:
* All UTF-8 characters are accepted everywhere in route paths. (#998)
* `path` is now `uri` in `route` attribute: `#[route(GET, path = "..")]`
becomes `#[route(GET, uri = "..")]`.
Forms Revamp
* All form related types now reside in a new `form` module.
* Multipart forms are supported. (resolves #106)
* Collections are supported in forms and queries. (resolves #205)
* Nested structures in forms and queries are supported. (resolves #313)
* Form fields can be ad-hoc validated with `#[field(validate = expr)]`.
* `FromFormValue` is now `FromFormField`, blanket implements `FromForm`.
* Form field values are always percent-decoded apriori.
Temporary Files
* A new `TempFile` data and form guard allows streaming data directly to a
file which can then be persisted.
* A new `temp_dir` config parameter specifies where to store `TempFile`.
* The limits `file` and `file/$ext`, where `$ext` is the file extension,
determines the data limit for a `TempFile`.
Capped
* A new `Capped` type is used to indicate when data has been truncated due to
incoming data limits. It allows checking whether data is complete or
truncated.
* `DataStream` methods return `Capped` types.
* `DataStream` API has been revamped to account for `Capped` types.
* Several `Capped<T>` types implement `FromData`, `FromForm`.
* HTTP 413 (Payload Too Large) errors are now returned when data limits are
exceeded. (resolves #972)
Hierarchical Limits
* Data limits are now hierarchical, delimited with `/`. A limit of `a/b/c`
falls back to `a/b` then `a`.
Core
* `&RawStr` no longer implements `FromParam`.
* `&str` implements `FromParam`, `FromData`, `FromForm`.
* `FromTransformedData` was removed.
* `FromData` gained a lifetime for use with request-local data.
* The default error HTML is more compact.
* `&Config` is a request guard.
* The `DataStream` interface was entirely revamped.
* `State` is only exported via `rocket::State`.
* A `request::local_cache!()` macro was added for storing values in
request-local cache without consideration for type uniqueness by using a
locally generated anonymous type.
* `Request::get_param()` is now `Request::param()`.
* `Request::get_segments()` is now `Request::segments()`, takes a range.
* `Request::get_query_value()` is now `Request::query_value()`, can parse any
`FromForm` including sequences.
* `std::io::Error` implements `Responder` like `Debug<std::io::Error>`.
* `(Status, R)` where `R: Responder` implements `Responder` by overriding the
`Status` of `R`.
* The name of a route is printed first during route matching.
* `FlashMessage` now only has one lifetime generic.
HTTP
* `RawStr` implements `serde::{Serialize, Deserialize}`.
* `RawStr` implements _many_ more methods, in particular, those related to the
`Pattern` API.
* `RawStr::from_str()` is now `RawStr::new()`.
* `RawStr::url_decode()` and `RawStr::url_decode_lossy()` only allocate as
necessary, return `Cow`.
* `Status` implements `Default` with `Status::Ok`.
* `Status` implements `PartialEq`, `Eq`, `Hash`, `PartialOrd`, `Ord`.
* Authority and origin part of `Absolute` can be modified with new
`Absolute::{with,set}_authority()`, `Absolute::{with,set}_origin()` methods.
* `Origin::segments()` was removed in favor of methods split into query and
path parts and into raw and decoded versions.
* The `Segments` iterator is smarter, returns decoded `&str` items.
* `Segments::into_path_buf()` is now `Segments::to_path_buf()`.
* A new `QuerySegments` is the analogous query segment iterator.
* Once set, `expires` on private cookies is not overwritten. (resolves #1506)
* `Origin::path()` and `Origin::query()` return `&RawStr`, not `&str`.
Codegen
* Preserve more spans in `uri!` macro.
* Preserve spans `FromForm` field types.
* All dynamic parameters in a query string must typecheck as `FromForm`.
* `FromFormValue` derive removed; `FromFormField` added.
* The `form` `FromForm` and `FromFormField` field attribute is now named
`field`. `#[form(field = ..)]` is now `#[field(name = ..)]`.
Contrib
* `Json` implements `FromForm`.
* `MsgPack` implements `FromForm`.
* The `json!` macro is exported as `rocket_contrib::json::json!`.
* Added clarifying docs to `StaticFiles`.
Examples
* `form_validation` and `form_kitchen_sink` removed in favor of `forms`.
* The `hello_world` example uses unicode in paths.
* The `json` example only allocates as necessary.
Internal
* Codegen uses new `exports` module with the following conventions:
- Locals starts with `__` and are lowercased.
- Rocket modules start with `_` and are lowercased.
- `std` types start with `_` and are titlecased.
- Rocket types are titlecased.
* A `header` module was added to `http`, contains header types.
* `SAFETY` is used as doc-string keyword for `unsafe` related comments.
* The `Uri` parser no longer recognizes Rocket route URIs.
2020-10-30 03:50:06 +00:00
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error: expected key/value `key = value`
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:24:12
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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24 | #[get("/", "/")]
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2018-10-05 04:44:42 +00:00
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| ^^^
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error: unexpected keyed parameter: expected literal or identifier
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:27:7
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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27 | #[get(data = "<foo>", "/")]
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2018-10-05 04:44:42 +00:00
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| ^^^^^^^^^^^^^^
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error: unexpected attribute parameter: `unknown`
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:30:12
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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30 | #[get("/", unknown = "foo")]
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2018-10-05 04:44:42 +00:00
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| ^^^^^^^^^^^^^^^
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UTF-8 routes. Forms revamp. Temp files. Capped.
So. Many. Changes.
This is an insane commit: simultaneously one of the best (because of all
the wonderful improvements!) and one of the worst (because it is just
massive) in the project's history.
Routing:
* All UTF-8 characters are accepted everywhere in route paths. (#998)
* `path` is now `uri` in `route` attribute: `#[route(GET, path = "..")]`
becomes `#[route(GET, uri = "..")]`.
Forms Revamp
* All form related types now reside in a new `form` module.
* Multipart forms are supported. (resolves #106)
* Collections are supported in forms and queries. (resolves #205)
* Nested structures in forms and queries are supported. (resolves #313)
* Form fields can be ad-hoc validated with `#[field(validate = expr)]`.
* `FromFormValue` is now `FromFormField`, blanket implements `FromForm`.
* Form field values are always percent-decoded apriori.
Temporary Files
* A new `TempFile` data and form guard allows streaming data directly to a
file which can then be persisted.
* A new `temp_dir` config parameter specifies where to store `TempFile`.
* The limits `file` and `file/$ext`, where `$ext` is the file extension,
determines the data limit for a `TempFile`.
Capped
* A new `Capped` type is used to indicate when data has been truncated due to
incoming data limits. It allows checking whether data is complete or
truncated.
* `DataStream` methods return `Capped` types.
* `DataStream` API has been revamped to account for `Capped` types.
* Several `Capped<T>` types implement `FromData`, `FromForm`.
* HTTP 413 (Payload Too Large) errors are now returned when data limits are
exceeded. (resolves #972)
Hierarchical Limits
* Data limits are now hierarchical, delimited with `/`. A limit of `a/b/c`
falls back to `a/b` then `a`.
Core
* `&RawStr` no longer implements `FromParam`.
* `&str` implements `FromParam`, `FromData`, `FromForm`.
* `FromTransformedData` was removed.
* `FromData` gained a lifetime for use with request-local data.
* The default error HTML is more compact.
* `&Config` is a request guard.
* The `DataStream` interface was entirely revamped.
* `State` is only exported via `rocket::State`.
* A `request::local_cache!()` macro was added for storing values in
request-local cache without consideration for type uniqueness by using a
locally generated anonymous type.
* `Request::get_param()` is now `Request::param()`.
* `Request::get_segments()` is now `Request::segments()`, takes a range.
* `Request::get_query_value()` is now `Request::query_value()`, can parse any
`FromForm` including sequences.
* `std::io::Error` implements `Responder` like `Debug<std::io::Error>`.
* `(Status, R)` where `R: Responder` implements `Responder` by overriding the
`Status` of `R`.
* The name of a route is printed first during route matching.
* `FlashMessage` now only has one lifetime generic.
HTTP
* `RawStr` implements `serde::{Serialize, Deserialize}`.
* `RawStr` implements _many_ more methods, in particular, those related to the
`Pattern` API.
* `RawStr::from_str()` is now `RawStr::new()`.
* `RawStr::url_decode()` and `RawStr::url_decode_lossy()` only allocate as
necessary, return `Cow`.
* `Status` implements `Default` with `Status::Ok`.
* `Status` implements `PartialEq`, `Eq`, `Hash`, `PartialOrd`, `Ord`.
* Authority and origin part of `Absolute` can be modified with new
`Absolute::{with,set}_authority()`, `Absolute::{with,set}_origin()` methods.
* `Origin::segments()` was removed in favor of methods split into query and
path parts and into raw and decoded versions.
* The `Segments` iterator is smarter, returns decoded `&str` items.
* `Segments::into_path_buf()` is now `Segments::to_path_buf()`.
* A new `QuerySegments` is the analogous query segment iterator.
* Once set, `expires` on private cookies is not overwritten. (resolves #1506)
* `Origin::path()` and `Origin::query()` return `&RawStr`, not `&str`.
Codegen
* Preserve more spans in `uri!` macro.
* Preserve spans `FromForm` field types.
* All dynamic parameters in a query string must typecheck as `FromForm`.
* `FromFormValue` derive removed; `FromFormField` added.
* The `form` `FromForm` and `FromFormField` field attribute is now named
`field`. `#[form(field = ..)]` is now `#[field(name = ..)]`.
Contrib
* `Json` implements `FromForm`.
* `MsgPack` implements `FromForm`.
* The `json!` macro is exported as `rocket_contrib::json::json!`.
* Added clarifying docs to `StaticFiles`.
Examples
* `form_validation` and `form_kitchen_sink` removed in favor of `forms`.
* The `hello_world` example uses unicode in paths.
* The `json` example only allocates as necessary.
Internal
* Codegen uses new `exports` module with the following conventions:
- Locals starts with `__` and are lowercased.
- Rocket modules start with `_` and are lowercased.
- `std` types start with `_` and are titlecased.
- Rocket types are titlecased.
* A `header` module was added to `http`, contains header types.
* `SAFETY` is used as doc-string keyword for `unsafe` related comments.
* The `Uri` parser no longer recognizes Rocket route URIs.
2020-10-30 03:50:06 +00:00
|
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error: expected key/value `key = value`
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--> $DIR/route-attribute-general-syntax.rs:33:12
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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33 | #[get("/", ...)]
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UTF-8 routes. Forms revamp. Temp files. Capped.
So. Many. Changes.
This is an insane commit: simultaneously one of the best (because of all
the wonderful improvements!) and one of the worst (because it is just
massive) in the project's history.
Routing:
* All UTF-8 characters are accepted everywhere in route paths. (#998)
* `path` is now `uri` in `route` attribute: `#[route(GET, path = "..")]`
becomes `#[route(GET, uri = "..")]`.
Forms Revamp
* All form related types now reside in a new `form` module.
* Multipart forms are supported. (resolves #106)
* Collections are supported in forms and queries. (resolves #205)
* Nested structures in forms and queries are supported. (resolves #313)
* Form fields can be ad-hoc validated with `#[field(validate = expr)]`.
* `FromFormValue` is now `FromFormField`, blanket implements `FromForm`.
* Form field values are always percent-decoded apriori.
Temporary Files
* A new `TempFile` data and form guard allows streaming data directly to a
file which can then be persisted.
* A new `temp_dir` config parameter specifies where to store `TempFile`.
* The limits `file` and `file/$ext`, where `$ext` is the file extension,
determines the data limit for a `TempFile`.
Capped
* A new `Capped` type is used to indicate when data has been truncated due to
incoming data limits. It allows checking whether data is complete or
truncated.
* `DataStream` methods return `Capped` types.
* `DataStream` API has been revamped to account for `Capped` types.
* Several `Capped<T>` types implement `FromData`, `FromForm`.
* HTTP 413 (Payload Too Large) errors are now returned when data limits are
exceeded. (resolves #972)
Hierarchical Limits
* Data limits are now hierarchical, delimited with `/`. A limit of `a/b/c`
falls back to `a/b` then `a`.
Core
* `&RawStr` no longer implements `FromParam`.
* `&str` implements `FromParam`, `FromData`, `FromForm`.
* `FromTransformedData` was removed.
* `FromData` gained a lifetime for use with request-local data.
* The default error HTML is more compact.
* `&Config` is a request guard.
* The `DataStream` interface was entirely revamped.
* `State` is only exported via `rocket::State`.
* A `request::local_cache!()` macro was added for storing values in
request-local cache without consideration for type uniqueness by using a
locally generated anonymous type.
* `Request::get_param()` is now `Request::param()`.
* `Request::get_segments()` is now `Request::segments()`, takes a range.
* `Request::get_query_value()` is now `Request::query_value()`, can parse any
`FromForm` including sequences.
* `std::io::Error` implements `Responder` like `Debug<std::io::Error>`.
* `(Status, R)` where `R: Responder` implements `Responder` by overriding the
`Status` of `R`.
* The name of a route is printed first during route matching.
* `FlashMessage` now only has one lifetime generic.
HTTP
* `RawStr` implements `serde::{Serialize, Deserialize}`.
* `RawStr` implements _many_ more methods, in particular, those related to the
`Pattern` API.
* `RawStr::from_str()` is now `RawStr::new()`.
* `RawStr::url_decode()` and `RawStr::url_decode_lossy()` only allocate as
necessary, return `Cow`.
* `Status` implements `Default` with `Status::Ok`.
* `Status` implements `PartialEq`, `Eq`, `Hash`, `PartialOrd`, `Ord`.
* Authority and origin part of `Absolute` can be modified with new
`Absolute::{with,set}_authority()`, `Absolute::{with,set}_origin()` methods.
* `Origin::segments()` was removed in favor of methods split into query and
path parts and into raw and decoded versions.
* The `Segments` iterator is smarter, returns decoded `&str` items.
* `Segments::into_path_buf()` is now `Segments::to_path_buf()`.
* A new `QuerySegments` is the analogous query segment iterator.
* Once set, `expires` on private cookies is not overwritten. (resolves #1506)
* `Origin::path()` and `Origin::query()` return `&RawStr`, not `&str`.
Codegen
* Preserve more spans in `uri!` macro.
* Preserve spans `FromForm` field types.
* All dynamic parameters in a query string must typecheck as `FromForm`.
* `FromFormValue` derive removed; `FromFormField` added.
* The `form` `FromForm` and `FromFormField` field attribute is now named
`field`. `#[form(field = ..)]` is now `#[field(name = ..)]`.
Contrib
* `Json` implements `FromForm`.
* `MsgPack` implements `FromForm`.
* The `json!` macro is exported as `rocket_contrib::json::json!`.
* Added clarifying docs to `StaticFiles`.
Examples
* `form_validation` and `form_kitchen_sink` removed in favor of `forms`.
* The `hello_world` example uses unicode in paths.
* The `json` example only allocates as necessary.
Internal
* Codegen uses new `exports` module with the following conventions:
- Locals starts with `__` and are lowercased.
- Rocket modules start with `_` and are lowercased.
- `std` types start with `_` and are titlecased.
- Rocket types are titlecased.
* A `header` module was added to `http`, contains header types.
* `SAFETY` is used as doc-string keyword for `unsafe` related comments.
* The `Uri` parser no longer recognizes Rocket route URIs.
2020-10-30 03:50:06 +00:00
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| ^^^
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2018-10-05 04:44:42 +00:00
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Introduce sentinels: auto-discovered launch abort.
Sentinels resolve a long-standing usability and functional correctness
issue in Rocket: starting an application with guards and/or responders
that depend on state that isn't available. The canonical example is the
'State' guard. Prior to this commit, an application with routes that
queried unmanaged state via 'State' would fail at runtime. With this
commit, the application refuses to launch with a detailed error message.
The 'Sentinel' docs explains it as:
A sentinel, automatically run on ignition, can trigger a launch
abort should an instance fail to meet arbitrary conditions. Every
type that appears in a mounted route's type signature is eligible to
be a sentinel. Of these, those that implement 'Sentinel' have their
'abort()' method invoked automatically, immediately after ignition,
once for each unique type. Sentinels inspect the finalized instance
of 'Rocket' and can trigger a launch abort by returning 'true'.
The following types are now sentinels:
* 'contrib::databases::Connection' (any '#[database]' type)
* 'contrib::templates::Metadata'
* 'contrib::templates::Template'
* 'core::State'
The following are "specialized" sentinels, which allow sentinel
discovery even through type aliases:
* 'Option<T>', 'Debug<T>' if 'T: Sentinel'
* 'Result<T, E>', 'Either<T, E>' if 'T: Sentinel', 'E: Sentinel'
Closes #464.
2021-04-16 08:23:15 +00:00
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error: handler arguments must be named
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:39:7
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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39 | fn c1(_: usize) {}
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2018-10-05 04:44:42 +00:00
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| ^^^^^^^^
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|
|
|
|
|
|
Introduce sentinels: auto-discovered launch abort.
Sentinels resolve a long-standing usability and functional correctness
issue in Rocket: starting an application with guards and/or responders
that depend on state that isn't available. The canonical example is the
'State' guard. Prior to this commit, an application with routes that
queried unmanaged state via 'State' would fail at runtime. With this
commit, the application refuses to launch with a detailed error message.
The 'Sentinel' docs explains it as:
A sentinel, automatically run on ignition, can trigger a launch
abort should an instance fail to meet arbitrary conditions. Every
type that appears in a mounted route's type signature is eligible to
be a sentinel. Of these, those that implement 'Sentinel' have their
'abort()' method invoked automatically, immediately after ignition,
once for each unique type. Sentinels inspect the finalized instance
of 'Rocket' and can trigger a launch abort by returning 'true'.
The following types are now sentinels:
* 'contrib::databases::Connection' (any '#[database]' type)
* 'contrib::templates::Metadata'
* 'contrib::templates::Template'
* 'core::State'
The following are "specialized" sentinels, which allow sentinel
discovery even through type aliases:
* 'Option<T>', 'Debug<T>' if 'T: Sentinel'
* 'Result<T, E>', 'Either<T, E>' if 'T: Sentinel', 'E: Sentinel'
Closes #464.
2021-04-16 08:23:15 +00:00
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= help: to name an ignored handler argument, use `_name`
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2018-10-05 04:44:42 +00:00
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error: invalid value: expected string literal
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:43:7
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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43 | #[get(100)]
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2018-10-05 04:44:42 +00:00
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| ^^^
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error: invalid value: expected string literal
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:46:7
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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46 | #[get('/')]
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2018-10-05 04:44:42 +00:00
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| ^^^
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error: invalid value: expected integer literal
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:49:19
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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49 | #[get("/", rank = "1")]
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2018-10-05 04:44:42 +00:00
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| ^^^
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error: invalid value: expected integer literal
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:52:19
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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52 | #[get("/", rank = '1')]
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2018-10-05 04:44:42 +00:00
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| ^^^
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error: invalid or unknown media type
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:57:21
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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57 | #[get("/", format = "applicationx-custom")]
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2018-10-05 04:44:42 +00:00
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| ^^^^^^^^^^^^^^^^^^^^^
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error: invalid or unknown media type
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:60:21
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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60 | #[get("/", format = "")]
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2018-10-05 04:44:42 +00:00
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| ^^
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error: invalid or unknown media type
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:63:21
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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63 | #[get("/", format = "//")]
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2018-10-05 04:44:42 +00:00
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| ^^^^
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error: invalid or unknown media type
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:66:21
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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66 | #[get("/", format = "/")]
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2018-10-05 04:44:42 +00:00
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| ^^^
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error: invalid or unknown media type
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:69:21
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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69 | #[get("/", format = "a/")]
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2018-10-05 04:44:42 +00:00
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| ^^^^
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error: invalid or unknown media type
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:72:21
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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72 | #[get("/", format = "/a")]
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2018-10-05 04:44:42 +00:00
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| ^^^^
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error: invalid or unknown media type
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:75:21
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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75 | #[get("/", format = "/a/")]
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2018-10-05 04:44:42 +00:00
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| ^^^^^
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error: invalid or unknown media type
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:78:21
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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78 | #[get("/", format = "a/b/")]
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2018-10-05 04:44:42 +00:00
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| ^^^^^^
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error: invalid or unknown media type
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:81:21
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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81 | #[get("/", format = "unknown")]
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2018-10-05 04:44:42 +00:00
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| ^^^^^^^^^
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error: invalid value: expected string literal
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:84:21
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2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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84 | #[get("/", format = 12)]
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2018-10-05 04:44:42 +00:00
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| ^^
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error: invalid value: expected string literal
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2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:87:21
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87 | #[get("/", format = 'j')]
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| ^^^
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2018-10-05 04:44:42 +00:00
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error: invalid or unknown media type
|
2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:90:21
|
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90 | #[get("/", format = "text//foo")]
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| ^^^^^^^^^^^
|
2018-10-05 04:44:42 +00:00
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error: invalid HTTP method for route handlers
|
2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:95:9
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95 | #[route(CONNECT, "/")]
|
|
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| ^^^^^^^
|
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= help: method must be one of: `GET`, `PUT`, `POST`, `DELETE`, `HEAD`, `PATCH`, `OPTIONS`
|
2018-10-05 04:44:42 +00:00
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error: invalid HTTP method
|
2020-07-21 17:23:59 +00:00
|
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--> $DIR/route-attribute-general-syntax.rs:98:9
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98 | #[route(FIX, "/")]
|
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| ^^^
|
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= help: method must be one of: `GET`, `PUT`, `POST`, `DELETE`, `HEAD`, `PATCH`, `OPTIONS`
|
2018-10-05 04:44:42 +00:00
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error: expected identifier, found string literal
|
2020-07-21 17:23:59 +00:00
|
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|
--> $DIR/route-attribute-general-syntax.rs:101:9
|
2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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101 | #[route("hi", "/")]
|
2018-10-05 04:44:42 +00:00
|
|
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| ^^^^
|
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= help: method must be one of: `GET`, `PUT`, `POST`, `DELETE`, `HEAD`, `PATCH`, `OPTIONS`
|
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error: expected identifier, found string literal
|
2020-07-21 17:23:59 +00:00
|
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|
--> $DIR/route-attribute-general-syntax.rs:104:9
|
2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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104 | #[route("GET", "/")]
|
2018-10-05 04:44:42 +00:00
|
|
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| ^^^^^
|
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= help: method must be one of: `GET`, `PUT`, `POST`, `DELETE`, `HEAD`, `PATCH`, `OPTIONS`
|
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error: expected identifier, found integer literal
|
2020-07-21 17:23:59 +00:00
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--> $DIR/route-attribute-general-syntax.rs:107:9
|
2018-10-05 04:44:42 +00:00
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2020-07-21 17:23:59 +00:00
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107 | #[route(120, "/")]
|
2018-10-05 04:44:42 +00:00
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|
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| ^^^
|
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= help: method must be one of: `GET`, `PUT`, `POST`, `DELETE`, `HEAD`, `PATCH`, `OPTIONS`
|