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docs(rome_js_analyze): improve CONTRIBUTING and code gen #4278
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ematipico
reviewed
Mar 8, 2023
| will use: | ||
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| ```shell | ||
| > just new-lintrule crates/rome_js_analyze/src/analyzers/nursery myRuleName |
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One thing that could be improved is to have a link to how to install just. We take for granted that users can use it as it is.
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| When implementing **new rules**, they have to be implemented under the group `nursery`. | ||
| New rules should always be considered unstable/not exhaustive. | ||
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| In addition to selecting a group, rules may be flagged as `recommended`. | ||
| The **recommended rules** are enabled in the default configuration of the _Rome_ linter. | ||
| As a general principle, a recommended rule should catch actual programming errors. | ||
| For instance detecting a coding pattern that will throw an exception at runtime. | ||
| Pedantic rules that check for certain unwanted patterns but may have high false positive rates, | ||
| should be left off from the recommended set. | ||
| Rules intended to be recommended should be flagged as such even if they are still part of the `nursery` group, | ||
| as unstable rules are only enabled by default on unstable builds. | ||
| This gives to the project time to test the rule, find edge cases, etc. |
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Suggested change
| When implementing **new rules**, they have to be implemented under the group `nursery`. | |
| New rules should always be considered unstable/not exhaustive. | |
| In addition to selecting a group, rules may be flagged as `recommended`. | |
| The **recommended rules** are enabled in the default configuration of the _Rome_ linter. | |
| As a general principle, a recommended rule should catch actual programming errors. | |
| For instance detecting a coding pattern that will throw an exception at runtime. | |
| Pedantic rules that check for certain unwanted patterns but may have high false positive rates, | |
| should be left off from the recommended set. | |
| Rules intended to be recommended should be flagged as such even if they are still part of the `nursery` group, | |
| as unstable rules are only enabled by default on unstable builds. | |
| This gives to the project time to test the rule, find edge cases, etc. | |
| When implementing **new rules**, they have to be implemented under the group `nursery`. | |
| New rules should always be considered unstable/not exhaustive. | |
| In addition to selecting a group, rules may be flagged as `recommended`. | |
| The **recommended rules** are enabled in the default configuration of the _Rome_ linter. | |
| As a general principle, a recommended rule should catch actual programming errors. | |
| For instance, detecting a coding pattern that will throw an exception at runtime. | |
| Pedantic rules that check for specific unwanted patterns but may have high false positive rates | |
| should be left off from the recommended set. | |
| Rules intended to be recommended should be flagged as such even if they are still part of the `nursery` group, | |
| as unstable rules are only enabled by default on unstable builds. | |
| This gives the project time to test the rule, find edge cases, etc. |
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| When creating or updating a lint rule, you need to be aware that there's a lot of generated code inside our toolchain. | ||
| Our CI makes sure that this code is not out of sync and fails otherwise. | ||
| See the [code generation section](#code-generation) for more details. |
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Suggested change
| When creating or updating a lint rule, you need to be aware that there's a lot of generated code inside our toolchain. | |
| Our CI makes sure that this code is not out of sync and fails otherwise. | |
| See the [code generation section](#code-generation) for more details. | |
| When creating or updating a lint rule, you need to be aware that there's a lot of generated code inside our toolchain. | |
| Our CI ensures this code is not out of sync and fails otherwise. | |
| See the [code generation section](#code-generation) for more details. |
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| While implementing the diagnostic, please keep [Rome's technical principals](https://rome.tools/#technical) in mind. | ||
| This function is called of every signal emitted by the `run` function, and it may return | ||
| zero or one diagnostic. |
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Suggested change
| While implementing the diagnostic, please keep [Rome's technical principals](https://rome.tools/#technical) in mind. | |
| This function is called of every signal emitted by the `run` function, and it may return | |
| zero or one diagnostic. | |
| While implementing the diagnostic, please keep [Rome's technical principals](https://rome.tools/#technical) in mind. | |
| This function is called for every signal emitted by the `run` function, and it may return | |
| zero or one diagnostic. |
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| This function is called of every signal emitted by the `run` function. | ||
| It may return zero or one code action. | ||
| When returning a code action, you will need to pass `category` and `applicability` fields. | ||
| `category` must be `ActionCategory::QuickFix`, while `applicability` must be `Applicability:MaybeIncorrect`. |
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Suggested change
| This function is called of every signal emitted by the `run` function. | |
| It may return zero or one code action. | |
| When returning a code action, you will need to pass `category` and `applicability` fields. | |
| `category` must be `ActionCategory::QuickFix`, while `applicability` must be `Applicability:MaybeIncorrect`. | |
| This function is called for every signal emitted by the `run` function. | |
| It may return zero or one code action. | |
| When returning a code action, you must pass the `category` and `applicability` fields. | |
| `category` must be `ActionCategory::QuickFix`, while `applicability` must be `Applicability:MaybeIncorrect`. |
must be seems to be a stretch; I mean, we have rules that have Applicability::Always. Maybe we should set more context of why we must set these values.
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| ### Code generation | ||
| Don't forget to format your code with `cargo fmt` and lint with `cargo clippy`. |
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Suggested change
| Don't forget to format your code with `cargo fmt` and lint with `cargo clippy`. | |
| Don't forget to format your code with `cargo format` and lint with `cargo lint`. |
Better use our internal aliases because we enforce more rules.
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| When a rule's sole intention is to **mandate a single concept** - such as forcing the use of camel-casing - the rule should be named using the `use` prefix. For example, the rule to mandating the use of camel-cased variable names is named `useCamelCase`. | ||
| Note that code in a file ending with the extension `.jsonc` are in a _script environment_. | ||
| That's mean that you cannot use syntax that belongs to ECMAScript modules such as `import` and `export`. |
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That's => This means that...
ematipico
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Summary
This PR improves the internal documentation for the analyzer in several ways:
The PR also marginally improve the code generation for
just new-lintrule.Test Plan
No change.