Facebook/react
1
0
Fork 0
mirror of https://github.com/facebook/react.git synced 2025-11-01 09:12:30 +00:00
Code Issues Packages Projects Releases Wiki Activity

[hir] Infer UnaryExpression as non allocating

Browse Source
This commit is contained in:
Sathya Gunasekaran
2023-01-25 11:11:16 -05:00
parent 9eb9071aed
commit e6b4988b1e
2 changed files with 15 additions and 71 deletions
Download Patch File Download Diff File Expand all files Collapse all files
compiler/forget/src/ReactiveScopes/InferReactiveScopeVariables.ts
+2 -2
View File
@@ -172,6 +172,7 @@ function mayAllocate(value: InstructionValue): boolean {
case "PropertyLoad":
case "ComputedLoad":
case "JSXText":
case "UnaryExpression":
case "Primitive": {
return false;
}
@@ -187,8 +188,7 @@ function mayAllocate(value: InstructionValue): boolean {
case "ObjectExpression":
case "UnsupportedNode":
case "FunctionExpression":
case "TaggedTemplateExpression":
case "UnaryExpression": {
case "TaggedTemplateExpression": {
return true;
}
default: {
compiler/forget/src/__tests__/fixtures/hir/unary-expr.expect.md
+13 -69
View File
@@ -30,77 +30,21 @@ function component(a) {
} else {
t = $[1];
}
const c_2 = $[2] !== t.t;
let z;
if (c_2) {
z = +t.t;
$[2] = t.t;
$[3] = z;
const z = +t.t;
const q = -t.t;
const p = void t.t;
const n = delete t.t;
const m = !t.t;
const e = ~t.t;
const f = typeof t.t;
let t2;
if ($[2] === Symbol.for("react.memo_cache_sentinel")) {
t2 = { z: z, p: p, q: q, n: n, m: m, e: e, f: f };
$[2] = t2;
} else {
z = $[3];
t2 = $[2];
}
const c_4 = $[4] !== t.t;
let q;
if (c_4) {
q = -t.t;
$[4] = t.t;
$[5] = q;
} else {
q = $[5];
}
const c_6 = $[6] !== t.t;
let p;
if (c_6) {
p = void t.t;
$[6] = t.t;
$[7] = p;
} else {
p = $[7];
}
const c_8 = $[8] !== t.t;
let n;
if (c_8) {
n = delete t.t;
$[8] = t.t;
$[9] = n;
} else {
n = $[9];
}
const c_10 = $[10] !== t.t;
let m;
if (c_10) {
m = !t.t;
$[10] = t.t;
$[11] = m;
} else {
m = $[11];
}
const c_12 = $[12] !== t.t;
let e;
if (c_12) {
e = ~t.t;
$[12] = t.t;
$[13] = e;
} else {
e = $[13];
}
const c_14 = $[14] !== t.t;
let f;
if (c_14) {
f = typeof t.t;
$[14] = t.t;
$[15] = f;
} else {
f = $[15];
}
let t16;
if ($[16] === Symbol.for("react.memo_cache_sentinel")) {
t16 = { z: z, p: p, q: q, n: n, m: m, e: e, f: f };
$[16] = t16;
} else {
t16 = $[16];
}
return t16;
return t2;
}
```