Follow-on after #7575. Annoyingly, we have to transform private fields in static prop initializers separately, to make sure the stack of private properties is in sync while visiting them.
Follow-on after #7575. Pure refactor. Move all logic for transforming `delete <chain expression>` into the handler `transform_unary_expression`. Aim is to keep logic in one place and keep the main visitor as simple as possible.
Fix#7254
Changed all "raw" properties of literal types (if they have this property) to `Option<Atom>`.
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Co-authored-by: overlookmotel <theoverlookmotel@gmail.com>
Fully support transforming ChainExpression in class properties. Our implementation has some differences in execution order compared to Babel, but we have passed all execution-related tests.
#7553 introduced support for some unusual JSX pragmas e.g. `this.foo` and `import.meta.foo`. We want to support these to pass tests, but they're very unlikely to be used in practice.
Identify these strange patterns when parsing the pragma (which happens only once per file), and encode them as an enum. The removes expensive string comparisons from `Pragma::create_expression` (which is called for every JSX element), and keeps the path for common cases fast.
Similar to #7516. Fix class properties transform to replace references to class name in static prop initializers with temp var.
Input:
```js
class C {
static getSelf = () => C;
}
const C2 = C;
C = 123;
assert(C2.getSelf() === C);
```
Output:
```js
var _C;
class C {}
_C = C;
_defineProperty(C, "getSelf", () => _C);
const C2 = C;
C = 123;
assert(C2.getSelf() === C);
```
Previously, temp var wasn't used so code was `_defineProperty(C, "getSelf", () => C);`. `C` is altered later by `C = 123`, so `C2.getSelf()` returned `123`, instead of reference to the class.
Fix class properties transform to create a temp var for class when it's required.
Input:
```js
class C {
static getSelf = () => this;
}
const C2 = C;
C = 123;
assert(C2.getSelf() === C);
```
Output:
```js
var _C;
class C {}
_C = C;
_defineProperty(C, "getSelf", () => _C);
const C2 = C;
C = 123;
assert(C2.getSelf() === C);
```
Previously, temp var wasn't used so code was `_defineProperty(C, "getSelf", () => C);`. `C` is altered later by `C = 123`, so `C2.getSelf()` returned `123`, instead of reference to the class.
The logic around when a temp var is required and when it's not, and when/where it's referenced is ridiculously complicated. So add some debug assert mechanisms to double-check the logic.
Pure refactor. Move all logic and types related to storing details of what private properties classes have into a separate file `private_props.rs`. Introduce a type `PrivatePropsStack` to represent the stack of classes.
