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2 Commits

Author SHA1 Message Date
Jorge Cabiedes Acosta
c10461285a [compiler] Switch to track setStates by aliasing and id instead of identifier names
Summary:
This makes the setState usage logic much more robust. We no longer rely on identifierName.

Now we track when a setState is loaded into a new promoted identifier variable and track this in a map `setStateLoaded` map.

For other types of instructions we consider the setState to be being used. In this case we record its usage into the `setStateUsages` map.



Test Plan:
We expect no changes in behavior for the current tests
2025-11-10 12:10:22 -08:00
Jorge Cabiedes Acosta
4c9faa3ec3 [compiler] Update ValidateNoDerivedComputationsInEffects_exp to log the error instead of throwing
Summary:
TSIA

Simple change to log errors in Pipeline.ts instead of throwing in the validation

Test Plan:
updated snap tests
2025-11-10 12:10:22 -08:00
5 changed files with 2 additions and 223 deletions

View File

@@ -358,14 +358,8 @@ function recordInstructionDerivations(
context.effects.add(effectFunction.loweredFunc.func);
}
} else if (isUseStateType(lvalue.identifier) && value.args.length > 0) {
typeOfValue = 'fromState';
context.derivationCache.addDerivationEntry(
lvalue,
new Set(),
typeOfValue,
true,
);
return;
isSource = true;
typeOfValue = joinValue(typeOfValue, 'fromState');
}
}
@@ -574,26 +568,6 @@ function renderTree(
return result;
}
function getFnLocalDeps(
fn: FunctionExpression | undefined,
): Set<IdentifierId> | undefined {
if (!fn) {
return undefined;
}
const deps: Set<IdentifierId> = new Set();
for (const [, block] of fn.loweredFunc.func.body.blocks) {
for (const instr of block.instructions) {
if (instr.value.kind === 'LoadLocal') {
deps.add(instr.value.place.identifier.id);
}
}
}
return deps;
}
function validateEffect(
effectFunction: HIRFunction,
context: ValidationContext,
@@ -612,23 +586,8 @@ function validateEffect(
Set<SourceLocation>
> = new Map();
let cleanUpFunctionDeps: Set<IdentifierId> | undefined;
const globals: Set<IdentifierId> = new Set();
for (const block of effectFunction.body.blocks.values()) {
/*
* if the block is in an effect and is of type return then its an effect's cleanup function
* if the cleanup function depends on a value from which effect-set state is derived then
* we can't validate
*/
if (
block.terminal.kind === 'return' &&
block.terminal.returnVariant === 'Explicit'
) {
cleanUpFunctionDeps = getFnLocalDeps(
context.functions.get(block.terminal.value.identifier.id),
);
}
for (const pred of block.preds) {
if (!seenBlocks.has(pred)) {
// skip if block has a back edge
@@ -739,12 +698,6 @@ function validateEffect(
),
);
for (const dep of derivedSetStateCall.sourceIds) {
if (cleanUpFunctionDeps !== undefined && cleanUpFunctionDeps.has(dep)) {
return;
}
}
const propsArr = Array.from(propsSet);
const stateArr = Array.from(stateSet);

View File

@@ -1,76 +0,0 @@
## Input
```javascript
// @validateNoDerivedComputationsInEffects_exp @loggerTestOnly
import {useEffect, useState} from 'react';
function Component(file: File) {
const [imageUrl, setImageUrl] = useState(null);
/*
* Cleaning up the variable or a source of the variable used to setState
* inside the effect communicates that we always need to clean up something
* which is a valid use case for useEffect. In which case we want to
* avoid an throwing
*/
useEffect(() => {
const imageUrlPrepared = URL.createObjectURL(file);
setImageUrl(imageUrlPrepared);
return () => URL.revokeObjectURL(imageUrlPrepared);
}, [file]);
return <Image src={imageUrl} xstyle={styles.imageSizeLimits} />;
}
```
## Code
```javascript
import { c as _c } from "react/compiler-runtime"; // @validateNoDerivedComputationsInEffects_exp @loggerTestOnly
import { useEffect, useState } from "react";
function Component(file) {
const $ = _c(5);
const [imageUrl, setImageUrl] = useState(null);
let t0;
let t1;
if ($[0] !== file) {
t0 = () => {
const imageUrlPrepared = URL.createObjectURL(file);
setImageUrl(imageUrlPrepared);
return () => URL.revokeObjectURL(imageUrlPrepared);
};
t1 = [file];
$[0] = file;
$[1] = t0;
$[2] = t1;
} else {
t0 = $[1];
t1 = $[2];
}
useEffect(t0, t1);
let t2;
if ($[3] !== imageUrl) {
t2 = <Image src={imageUrl} xstyle={styles.imageSizeLimits} />;
$[3] = imageUrl;
$[4] = t2;
} else {
t2 = $[4];
}
return t2;
}
```
## Logs
```
{"kind":"CompileSuccess","fnLoc":{"start":{"line":5,"column":0,"index":108},"end":{"line":21,"column":1,"index":700},"filename":"effect-with-cleanup-function-depending-on-derived-computation-value.ts"},"fnName":"Component","memoSlots":5,"memoBlocks":2,"memoValues":3,"prunedMemoBlocks":0,"prunedMemoValues":0}
```
### Eval output
(kind: exception) Fixture not implemented

View File

@@ -1,21 +0,0 @@
// @validateNoDerivedComputationsInEffects_exp @loggerTestOnly
import {useEffect, useState} from 'react';
function Component(file: File) {
const [imageUrl, setImageUrl] = useState(null);
/*
* Cleaning up the variable or a source of the variable used to setState
* inside the effect communicates that we always need to clean up something
* which is a valid use case for useEffect. In which case we want to
* avoid an throwing
*/
useEffect(() => {
const imageUrlPrepared = URL.createObjectURL(file);
setImageUrl(imageUrlPrepared);
return () => URL.revokeObjectURL(imageUrlPrepared);
}, [file]);
return <Image src={imageUrl} xstyle={styles.imageSizeLimits} />;
}

View File

@@ -1,59 +0,0 @@
## Input
```javascript
// @validateNoDerivedComputationsInEffects_exp
function Component({ prop }) {
const [s, setS] = useState(prop)
const [second, setSecond] = useState(prop)
useEffect(() => {
setS(second)
}, [second])
return <div>{s}</div>
}
```
## Code
```javascript
import { c as _c } from "react/compiler-runtime"; // @validateNoDerivedComputationsInEffects_exp
function Component(t0) {
const $ = _c(5);
const { prop } = t0;
const [s, setS] = useState(prop);
const [second] = useState(prop);
let t1;
let t2;
if ($[0] !== second) {
t1 = () => {
setS(second);
};
t2 = [second];
$[0] = second;
$[1] = t1;
$[2] = t2;
} else {
t1 = $[1];
t2 = $[2];
}
useEffect(t1, t2);
let t3;
if ($[3] !== s) {
t3 = <div>{s}</div>;
$[3] = s;
$[4] = t3;
} else {
t3 = $[4];
}
return t3;
}
```
### Eval output
(kind: exception) Fixture not implemented

View File

@@ -1,18 +0,0 @@
// @validateNoDerivedComputationsInEffects_exp
function Component({prop}) {
const [s, setS] = useState();
const [second, setSecond] = useState(prop);
/*
* `second` is a source of state. It will inherit the value of `prop` in
* the first render, but after that it will no longer be updated when
* `prop` changes. So we shouldn't consider `second` as being derived from
* `prop`
*/
useEffect(() => {
setS(second);
}, [second]);
return <div>{s}</div>;
}