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[FIX] qweb: do not leak values in global context in rare cases

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In some very rare cases (such as the use of the t-foreach directive),
Owl did leak the values in the render context in the global context.
This was due to the fact that the compiled template looked like this:

let _3 = _4 = _5;

instead of

let _3 = _5;
let _4 = _5;
This commit is contained in:
Géry Debongnie
2021-10-19 15:55:57 +02:00
committed by aab-odoo
parent c0f495661d
commit 6e185f987b
6 changed files with 130 additions and 38 deletions
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tests/qweb/__snapshots__/qweb.test.ts.snap
+44 -22
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@@ -429,7 +429,8 @@ exports[`foreach does not pollute the rendering context 1`] = `
let vn1 = h('div', p1, c1);
let _2 = [1];
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);
@@ -464,7 +465,8 @@ exports[`foreach iterate on items (on a element node) 1`] = `
let vn1 = h('div', p1, c1);
let _2 = [1,2];
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);
@@ -502,7 +504,8 @@ exports[`foreach iterate on items 1`] = `
let vn1 = h('div', p1, c1);
let _2 = [3,2,1];
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);
@@ -549,7 +552,8 @@ exports[`foreach iterate, dict param 1`] = `
let vn1 = h('div', p1, c1);
let _2 = scope['value'];
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);
@@ -596,7 +600,8 @@ exports[`foreach iterate, position 1`] = `
let vn1 = h('div', p1, c1);
let _2 = Array(5);
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);
@@ -641,7 +646,8 @@ exports[`foreach t-call with body in t-foreach in t-foreach 1`] = `
let vn1 = h('div', p1, c1);
let _2 = scope['numbers'];
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);
@@ -658,7 +664,8 @@ exports[`foreach t-call with body in t-foreach in t-foreach 1`] = `
let key1 = i1;
let _6 = scope['letters'];
if (!_6) { throw new Error('QWeb error: Invalid loop expression')}
let _7 = _8 = _6;
let _7 = _6;
let _8 = _6;
if (!(_6 instanceof Array)) {
_7 = Object.keys(_6);
_8 = Object.values(_6);
@@ -729,7 +736,8 @@ exports[`foreach t-call without body in t-foreach in t-foreach 1`] = `
let vn1 = h('div', p1, c1);
let _2 = scope['numbers'];
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);
@@ -746,7 +754,8 @@ exports[`foreach t-call without body in t-foreach in t-foreach 1`] = `
let key1 = i1;
let _6 = scope['letters'];
if (!_6) { throw new Error('QWeb error: Invalid loop expression')}
let _7 = _8 = _6;
let _7 = _6;
let _8 = _6;
if (!(_6 instanceof Array)) {
_7 = Object.keys(_6);
_8 = Object.values(_6);
@@ -811,7 +820,8 @@ exports[`foreach t-foreach in t-forach 1`] = `
let vn1 = h('div', p1, c1);
let _2 = scope['numbers'];
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);
@@ -828,7 +838,8 @@ exports[`foreach t-foreach in t-forach 1`] = `
let key1 = i1;
let _6 = scope['letters'];
if (!_6) { throw new Error('QWeb error: Invalid loop expression')}
let _7 = _8 = _6;
let _7 = _6;
let _8 = _6;
if (!(_6 instanceof Array)) {
_7 = Object.keys(_6);
_8 = Object.values(_6);
@@ -871,7 +882,8 @@ exports[`foreach warn if no key in some case 1`] = `
let vn1 = h('div', p1, c1);
let _2 = [1,2];
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);
@@ -940,7 +952,8 @@ exports[`misc global 1`] = `
let vn1 = h('div', p1, c1);
let _2 = [4,5,6];
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);
@@ -1666,7 +1679,8 @@ exports[`t-call (template calling recursive template, part 2 2`] = `
}
let _6 = scope['node'].children||[];
if (!_6) { throw new Error('QWeb error: Invalid loop expression')}
let _7 = _8 = _6;
let _7 = _6;
let _8 = _6;
if (!(_6 instanceof Array)) {
_7 = Object.keys(_6);
_8 = Object.values(_6);
@@ -1746,7 +1760,8 @@ exports[`t-call (template calling recursive template, part 3 2`] = `
}
let _6 = scope['node'].children||[];
if (!_6) { throw new Error('QWeb error: Invalid loop expression')}
let _7 = _8 = _6;
let _7 = _6;
let _8 = _6;
if (!(_6 instanceof Array)) {
_7 = Object.keys(_6);
_8 = Object.values(_6);
@@ -1832,7 +1847,8 @@ exports[`t-call (template calling recursive template, part 4: with t-set recursi
}
let _6 = scope['node'].children||[];
if (!_6) { throw new Error('QWeb error: Invalid loop expression')}
let _7 = _8 = _6;
let _7 = _6;
let _8 = _6;
if (!(_6 instanceof Array)) {
_7 = Object.keys(_6);
_8 = Object.values(_6);
@@ -1998,7 +2014,8 @@ exports[`t-call (template calling t-call with t-set inside and outside 1`] = `
let vn1 = h('div', p1, c1);
let _2 = scope['list'];
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);
@@ -2775,7 +2792,8 @@ exports[`t-key t-key directive in a list 1`] = `
let vn1 = h('ul', p1, c1);
let _2 = scope['beers'];
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);
@@ -2879,7 +2897,8 @@ exports[`t-on can bind handlers with loop variable as argument 1`] = `
let vn1 = h('ul', p1, c1);
let _2 = ['someval'];
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);
@@ -3161,7 +3180,8 @@ exports[`t-on t-on with prevent modifier in t-foreach 1`] = `
let vn1 = h('div', p1, c1);
let _2 = scope['projects'];
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);
@@ -3432,7 +3452,8 @@ exports[`t-ref refs in a loop 1`] = `
let vn1 = h('div', p1, c1);
let _2 = scope['items'];
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);
@@ -3676,7 +3697,8 @@ exports[`t-set t-set should reuse variable if possible 1`] = `
scope.v = 1;
let _2 = scope['list'];
if (!_2) { throw new Error('QWeb error: Invalid loop expression')}
let _3 = _4 = _2;
let _3 = _2;
let _4 = _2;
if (!(_2 instanceof Array)) {
_3 = Object.keys(_2);
_4 = Object.values(_2);