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fix(ecma/codegen): don't print whitespaces for comments in minify mode #6465

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merged 16 commits into from
Nov 20, 2022
Merged

fix(ecma/codegen): don't print whitespaces for comments in minify mode #6465

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dbc9506
fix(ecma/codegen): don't print whitespaces for comments in minify mode
alexander-akait Nov 17, 2022
94622f0
test: fix
alexander-akait Nov 17, 2022
d9e8772
test: fix
alexander-akait Nov 17, 2022
ac27afd
test: update
alexander-akait Nov 18, 2022
e82d80e
Revert "test: update"
kdy1 Nov 20, 2022
9c1da70
patch using bash
kdy1 Nov 20, 2022
d2fc01f
tee
kdy1 Nov 20, 2022
ef64b19
fail fast
kdy1 Nov 20, 2022
1b20076
print
kdy1 Nov 20, 2022
eaa0a97
Fix patch-section
kdy1 Nov 20, 2022
642919b
raw
kdy1 Nov 20, 2022
149bb76
debug
kdy1 Nov 20, 2022
976dce6
csv
kdy1 Nov 20, 2022
fff7d97
Fix
kdy1 Nov 20, 2022
ed334c1
Fix csv
kdy1 Nov 20, 2022
bac4e58
Merge branch 'main' into fix-avoid-empty-spaces-for-comments-in-minif…
swc-bot Nov 20, 2022
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12 changes: 9 additions & 3 deletions crates/swc_ecma_codegen/src/comments.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -12,17 +12,21 @@ macro_rules! write_comments {
for cmt in cmts.iter() {
match cmt.kind {
CommentKind::Line => {
if $prefix_space {
if $prefix_space && !$e.cfg.minify {
$e.wr.write_comment(" ")?;
}

srcmap!($e, cmt, true);

$e.wr.write_comment("//")?;
$e.wr.write_comment(&cmt.text)?;

srcmap!($e, cmt, false);

$e.wr.write_line()?;
}
CommentKind::Block => {
if $prefix_space {
if $prefix_space && !$e.cfg.minify {
$e.wr.write_comment(" ")?;
}

Expand All @@ -39,7 +43,9 @@ macro_rules! write_comments {
}
$e.wr.write_comment("*/")?;

$e.wr.write_space()?;
if !$e.cfg.minify {
$e.wr.write_space()?;
}
}
}
}
Expand Down
36 changes: 36 additions & 0 deletions crates/swc_html_minifier/tests/fixture/element/script-custom-type/input.html
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@@ -0,0 +1,36 @@
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<title>Document</title>
</head>
<body>
<script type="text/ng-template">
<!--test-->
<div>
<span> foobar </span>
</div>
</script>

<script type="text/ng-template">
<!--test-->
<div>
<span> foobar </span>
</div>
</script>
<script type="text/html">
<!--test-->
<div>
<span> foobar </span>
</div>
</script>
<script type="text/html">
<!--test-->
<div>
<span> foobar </span>
</div>
</script>
</body>
</html>
21 changes: 21 additions & 0 deletions crates/swc_html_minifier/tests/fixture/element/script-custom-type/output.min.html
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@@ -0,0 +1,21 @@
<!doctype html><html lang=en><meta charset=UTF-8><meta name=viewport content="width=device-width,user-scalable=no,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0"><title>Document</title><body><script type=text/ng-template>
<!--test-->
<div>
<span> foobar </span>
</div>
</script><script type=text/ng-template>
<!--test-->
<div>
<span> foobar </span>
</div>
</script><script type=text/html>
<!--test-->
<div>
<span> foobar </span>
</div>
</script><script type=text/html>
<!--test-->
<div>
<span> foobar </span>
</div>
</script>
4 changes: 2 additions & 2 deletions crates/swc_html_minifier/tests/fixture/element/script-options-2/output.min.html
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
<!doctype html><html lang=en><title>Document</title><div>Script:</div>
<script>/* Should mangle top level stuff */ var o=function(){let o="bar";o&&(o+="baz"),console.log(o)}</script>
<script>/* Should mangle top level stuff */var o=function(){let o="bar";o&&(o+="baz"),console.log(o)}</script>

<div>Module:</div>
<script type=module>/* Should mangle top level stuff */ var o=function(){let o="bar";o&&(o+="baz"),console.log(o)}</script>
<script type=module>/* Should mangle top level stuff */var o=function(){let o="bar";o&&(o+="baz"),console.log(o)}</script>
11 changes: 11 additions & 0 deletions crates/swc_html_minifier/tests/fixture/element/script-options/input.html
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Expand Up @@ -13,5 +13,16 @@
// Keep comment
console.log("test " + "😀" + " test");
</script>
<script>
// Comment
var a = "test";
/* Comment */
var b = "test";
var /* Comment */ c /* Comment */ = /* Comment */ "test" /* Comment */;
</script>
<script>
var a = "test" // test
;
</script>
</body>
</html>
6 changes: 4 additions & 2 deletions crates/swc_html_minifier/tests/fixture/element/script-options/output.min.html
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Original file line number Diff line number Diff line change
@@ -1,2 +1,4 @@
<!doctype html><html lang=en><title>Document</title><body><script type=module>/* Keep comment */ debugger;// Keep comment
console.log("test \u{1F600} test")</script>
<!doctype html><html lang=en><title>Document</title><body><script type=module>/* Keep comment */debugger;// Keep comment
console.log("test \u{1F600} test")</script><script>// Comment
var a="test",b="test",/* Comment */c/* Comment */=/* Comment */"test"/* Comment */,a="test"// test
</script>
8 changes: 4 additions & 4 deletions node-swc/__tests__/minify_test.mjs
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Expand Up @@ -191,7 +191,7 @@ describe("should remove comments", () => {
);
});

it("should preserve licnese", async () => {
it("should preserve license", async () => {
const { code } = await swc.minify(
`
(function(){
Expand All @@ -213,10 +213,10 @@ describe("should remove comments", () => {
expect(code).toMatchInlineSnapshot(`
"(function(){/**
* @license
*/ const o=Math.random()+\\"_\\"+Math.random();console.log(o)})();"
*/const o=Math.random()+\\"_\\"+Math.random();console.log(o)})();"
`);
});
it("should remove comment near to licnese", async () => {
it("should remove comment near to license", async () => {
const { code } = await swc.minify(
`
(function(){
Expand All @@ -241,7 +241,7 @@ describe("should remove comments", () => {
expect(code).toMatchInlineSnapshot(`
"(function(){/**
* @license
*/ const o=Math.random()+\\"_\\"+Math.random();console.log(o)})();"
*/const o=Math.random()+\\"_\\"+Math.random();console.log(o)})();"
`);
});
});