feat(language-service): support to report the deprecated API in the t… #62054
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packages/compiler-cli/src/ngtsc/typecheck/diagnostics/src/diagnostic.ts
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| /** | ||
| * Connect the TCB node to the template node and generate the template diagnostics. | ||
| * | ||
| * How to generate the template diagnostics: | ||
| * | ||
| * 1. For each diagnostic, find the TCB node that is reported. | ||
| * 2. Build a map called `nodeToDiag` that the key is the type node and value is the diagnostic. | ||
| * For example: | ||
| * ``` | ||
| * var _t1 = null! as TestDir; | ||
| * ^^^^^^^------ This is diagnostic node that is reported by the ts. | ||
| * ``` | ||
| * The key is the class component of TestDir. | ||
| * 3. Find the all directive nodes in the TCB. | ||
| * For example: | ||
| * In the above example, the directive node is `_t1`, get the type of `_t1` which is the | ||
| * class component of `TestDir`. Check if there is a diagnostic in the `nodeToDiag` map | ||
| * that matches the class component of `TestDir`. | ||
| * If there is a match, it means that the diagnostic is reported for the directive node | ||
| * 4. Generate the template diagnostic and return the template diagnostics. | ||
| */ | ||
| function getTheElementTagDeprecatedSuggestionDiagnostics( |
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Support the deprecated tag for the component
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So we ran into this issue internally as well for the indexing that powers code search: A directive's span applies to the whole element that it is active for (correctly). However, this makes it appear like the element is deprecated when in reality it's just [directive] here. This is pretty problematic. As an example NgFor and NgIf have this problem and when used, make it so the element appears deprecated. Components really have this problem too but it's generally not something that comes up because their selectors are element tag selectors 99% of the time.
I don't think we have any information about the span for the selectors of directives/components. For quick info, we did something like this:
We remove an attribute and see which directives no longer apply and from that information can determine that the selector is necessary for the directive matching. Maybe you can do something similar here? Otherwise I might recommend omitting the directives from this feature and rely on the inputs hopefully being deprecated as well. We did that for the control flow inputs as a workaround for this issue (8885811)
…emplate In the Typescript Language Service, these diagnostics are reported as suggestion diagnostics. This will report the deprecated `Component`, `Directive`, etc. Fixes angular#59343
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| /** | ||
| * Connect the TCB node to the template node and generate the template diagnostics. | ||
| * | ||
| * How to generate the template diagnostics: | ||
| * | ||
| * 1. For each diagnostic, find the TCB node that is reported. | ||
| * 2. Build a map called `nodeToDiag` that the key is the type node and value is the diagnostic. | ||
| * For example: | ||
| * ``` | ||
| * var _t1 = null! as TestDir; | ||
| * ^^^^^^^------ This is diagnostic node that is reported by the ts. | ||
| * ``` | ||
| * The key is the class component of TestDir. | ||
| * 3. Find the all directive nodes in the TCB. | ||
| * For example: | ||
| * In the above example, the directive node is `_t1`, get the type of `_t1` which is the | ||
| * class component of `TestDir`. Check if there is a diagnostic in the `nodeToDiag` map | ||
| * that matches the class component of `TestDir`. | ||
| * If there is a match, it means that the diagnostic is reported for the directive node | ||
| * 4. Generate the template diagnostic and return the template diagnostics. | ||
| */ | ||
| function getTheElementTagDeprecatedSuggestionDiagnostics( |
There was a problem hiding this comment.
So we ran into this issue internally as well for the indexing that powers code search: A directive's span applies to the whole element that it is active for (correctly). However, this makes it appear like the element is deprecated when in reality it's just [directive] here. This is pretty problematic. As an example NgFor and NgIf have this problem and when used, make it so the element appears deprecated. Components really have this problem too but it's generally not something that comes up because their selectors are element tag selectors 99% of the time.
I don't think we have any information about the span for the selectors of directives/components. For quick info, we did something like this:
We remove an attribute and see which directives no longer apply and from that information can determine that the selector is necessary for the directive matching. Maybe you can do something similar here? Otherwise I might recommend omitting the directives from this feature and rely on the inputs hopefully being deprecated as well. We did that for the control flow inputs as a workaround for this issue (8885811)
…emplate
In the Typescript Language Service, these diagnostics are reported as suggestion diagnostics. This will report the deprecated
Component,Directive, etc.Fixes #59343
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