From af0a3df9459b206332a6c1169af0c9cd9fb0a143 Mon Sep 17 00:00:00 2001
From: Nate Moore <nate@skypack.dev>
Date: Thu, 20 Jan 2022 20:49:55 -0600
Subject: [PATCH 1/4] feat: add renderHead util to output

---
 internal/printer/print-to-js.go  | 3 +++
 internal/printer/printer.go      | 7 +++++++
 internal/printer/printer_test.go | 1 +
 3 files changed, 11 insertions(+)

diff --git a/internal/printer/print-to-js.go b/internal/printer/print-to-js.go
index c626e9cd2..751195304 100644
--- a/internal/printer/print-to-js.go
+++ b/internal/printer/print-to-js.go
@@ -573,6 +573,9 @@ func render1(p *printer, n *Node, opts RenderOptions) {
 	if isComponent || isSlot {
 		p.print(")}")
 	} else if !isImplicit {
+		if n.DataAtom == atom.Head {
+			p.printRenderHead()
+		}
 		p.print(`</` + n.Data + `>`)
 	}
 }
diff --git a/internal/printer/printer.go b/internal/printer/printer.go
index 729ba462e..b408077dc 100644
--- a/internal/printer/printer.go
+++ b/internal/printer/printer.go
@@ -35,6 +35,7 @@ var ADD_ATTRIBUTE = "$$addAttribute"
 var SPREAD_ATTRIBUTES = "$$spreadAttributes"
 var DEFINE_STYLE_VARS = "$$defineStyleVars"
 var DEFINE_SCRIPT_VARS = "$$defineScriptVars"
+var RENDER_HEAD = "$$renderHead"
 var CREATE_METADATA = "$$createMetadata"
 var METADATA = "$$metadata"
 var RESULT = "$$result"
@@ -57,6 +58,7 @@ func (p *printer) printInternalImports(importSpecifier string) {
 	p.print("import {\n  ")
 	p.print(FRAGMENT + ",\n  ")
 	p.print("render as " + TEMPLATE_TAG + ",\n  ")
+	p.print("renderHead as " + RENDER_HEAD + ",\n  ")
 	p.print("createAstro as " + CREATE_ASTRO + ",\n  ")
 	p.print("createComponent as " + CREATE_COMPONENT + ",\n  ")
 	p.print("renderComponent as " + RENDER_COMPONENT + ",\n  ")
@@ -86,6 +88,11 @@ func (p *printer) printCSSImports(cssLen int) {
 	p.hasCSSImports = true
 }
 
+func (p *printer) printRenderHead() {
+	p.addNilSourceMapping()
+	p.print(fmt.Sprintf("${%s(%s)}", RENDER_HEAD, RESULT))
+}
+
 func (p *printer) printReturnOpen() {
 	p.addNilSourceMapping()
 	p.print("return ")
diff --git a/internal/printer/printer_test.go b/internal/printer/printer_test.go
index 2e4630e46..fb78312ca 100644
--- a/internal/printer/printer_test.go
+++ b/internal/printer/printer_test.go
@@ -16,6 +16,7 @@ import (
 var INTERNAL_IMPORTS = fmt.Sprintf("import {\n  %s\n} from \"%s\";\n", strings.Join([]string{
 	FRAGMENT,
 	"render as " + TEMPLATE_TAG,
+	"renderHead as " + RENDER_HEAD,
 	"createAstro as " + CREATE_ASTRO,
 	"createComponent as " + CREATE_COMPONENT,
 	"renderComponent as " + RENDER_COMPONENT,

From cdb0ea0d535653e7b86e36eaf1f5483b05859957 Mon Sep 17 00:00:00 2001
From: Nate Moore <nate@skypack.dev>
Date: Mon, 24 Jan 2022 15:46:31 -0600
Subject: [PATCH 2/4] chore: update ci to run on `next`

---
 .github/workflows/ci.yml      | 4 ++--
 .github/workflows/release.yml | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 838274163..df5d01eae 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,9 +2,9 @@ name: Test
 
 on:
   push:
-    branches: ['main']
+    branches: ['main', 'next']
   pull_request:
-    branches: ['main']
+    branches: ['main', 'next']
 
 # Automatically cancel in-progress actions on the same branch
 concurrency:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 294049676..fbed404eb 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - main
+      - next
 
 jobs:
   release:

From b8ba89c7f076b4d4b1c096fa529789d210a55357 Mon Sep 17 00:00:00 2001
From: Nate Moore <nate@skypack.dev>
Date: Mon, 24 Jan 2022 16:00:06 -0600
Subject: [PATCH 3/4] test: update tests

---
 internal/printer/printer_test.go | 31 ++++++++++++++++---------------
 1 file changed, 16 insertions(+), 15 deletions(-)

diff --git a/internal/printer/printer_test.go b/internal/printer/printer_test.go
index fb78312ca..4718ab98a 100644
--- a/internal/printer/printer_test.go
+++ b/internal/printer/printer_test.go
@@ -39,6 +39,7 @@ var STYLE_SUFFIX = "];\nfor (const STYLE of STYLES) $$result.styles.add(STYLE);\
 var SCRIPT_PRELUDE = "const SCRIPTS = [\n"
 var SCRIPT_SUFFIX = "];\nfor (const SCRIPT of SCRIPTS) $$result.scripts.add(SCRIPT);\n"
 var CREATE_ASTRO_CALL = "const $$Astro = $$createAstro(import.meta.url, 'https://astro.build', '.');\nconst Astro = $$Astro;"
+var RENDER_HEAD_RESULT = fmt.Sprintf("${%s(%s)}", RENDER_HEAD, RESULT)
 
 // SPECIAL TEST FIXTURES
 var NON_WHITESPACE_CHARS = []byte("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()-_=+[];:'\",.?")
@@ -178,7 +179,7 @@ import VueComponent from '../components/Vue.vue';
 				code: `<html>
   <head>
     <title>Hello world</title>
-  </head>
+  ` + RENDER_HEAD_RESULT + `</head>
   <body>
     ${` + RENDER_COMPONENT + `($$result,'VueComponent',VueComponent,{})}
   </body></html>
@@ -205,7 +206,7 @@ import * as ns from '../components';
 				code: `<html>
   <head>
     <title>Hello world</title>
-  </head>
+  ` + RENDER_HEAD_RESULT + `</head>
   <body>
     ${` + RENDER_COMPONENT + `($$result,'ns.Component',ns.Component,{})}
   </body></html>
@@ -225,7 +226,7 @@ import * as ns from '../components';
 </html>`,
 			want: want{
 				code: `<html>
-  <head></head>
+  <head>` + RENDER_HEAD_RESULT + `</head>
   <body>
 	<noscript>
 		${` + RENDER_COMPONENT + `($$result,'Component',Component,{})}
@@ -256,7 +257,7 @@ import Component from '../components';
 				code: `<html>
   <head>
     <title>Hello world</title>
-  </head>
+  ` + RENDER_HEAD_RESULT + `</head>
   <body>
     ${` + RENDER_COMPONENT + `($$result,'Component',null,{"client:only":true,"client:component-hydration":"only","client:component-path":($$metadata.resolvePath("../components")),"client:component-export":"default"})}
   </body></html>`,
@@ -284,7 +285,7 @@ import { Component } from '../components';
 				code: `<html>
   <head>
     <title>Hello world</title>
-  </head>
+  ` + RENDER_HEAD_RESULT + `</head>
   <body>
     ${` + RENDER_COMPONENT + `($$result,'Component',null,{"client:only":true,"client:component-hydration":"only","client:component-path":($$metadata.resolvePath("../components")),"client:component-export":"Component"})}
   </body></html>`,
@@ -312,7 +313,7 @@ import * as components from '../components';
 				code: `<html>
   <head>
     <title>Hello world</title>
-  </head>
+  ` + RENDER_HEAD_RESULT + `</head>
   <body>
     ${` + RENDER_COMPONENT + `($$result,'components.A',null,{"client:only":true,"client:component-hydration":"only","client:component-path":($$metadata.resolvePath("../components")),"client:component-export":"A"})}
   </body></html>`,
@@ -520,7 +521,7 @@ const name = "world";
 				code: `<html>
   <head>
     <title>Hello ${name}</title>
-  </head>
+  ` + RENDER_HEAD_RESULT + `</head>
   <body>
     <div></div>
   </body></html>
@@ -602,7 +603,7 @@ const name = "world";
 
   <link rel="stylesheet" href="css/styles.css?v=1.0">
 
-</head>
+` + RENDER_HEAD_RESULT + `</head>
 
 <body>
   <!-- your content here... -->
@@ -678,8 +679,8 @@ import Counter from '../components/Counter.jsx'`,
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width">
     <link rel="icon" type="image/x-icon" href="/favicon.ico">
-
-  </head>
+  
+  ` + RENDER_HEAD_RESULT + `</head>
   <body>
     <main class="astro-HMNNHVCQ">
       ${$$renderComponent($$result,'Counter',Counter,{...(someProps),"client:visible":true,"client:component-hydration":"visible","client:component-path":($$metadata.getPath(Counter)),"client:component-export":($$metadata.getExport(Counter)),"class":"astro-HMNNHVCQ"},{"default": () => $$render` + "`" + `<h1 class="astro-HMNNHVCQ">Hello React!</h1>` + "`" + `,})}
@@ -710,7 +711,7 @@ import Widget2 from '../components/Widget2.astro';`},
 				code: `<html lang="en">
   <head>
     <script type="module" src="/regular_script.js"></script>
-  </head></html>`,
+  ` + RENDER_HEAD_RESULT + `</head></html>`,
 			},
 		},
 		{
@@ -874,14 +875,14 @@ ${$$renderComponent($$result,'my-element','my-element',{"client:load":true,"clie
 			name:   "Self-closing script in head works",
 			source: `<html><head><script /></head><html>`,
 			want: want{
-				code: `<html><head><script></script></head></html>`,
+				code: `<html><head><script></script>` + RENDER_HEAD_RESULT + `</head></html>`,
 			},
 		},
 		{
 			name:   "Self-closing components in head can have siblings",
 			source: `<html><head><BaseHead /><link href="test"></head><html>`,
 			want: want{
-				code: `<html><head>${$$renderComponent($$result,'BaseHead',BaseHead,{})}<link href="test"></head></html>`,
+				code: `<html><head>${$$renderComponent($$result,'BaseHead',BaseHead,{})}<link href="test">` + RENDER_HEAD_RESULT + `</head></html>`,
 			},
 		},
 		{
@@ -1126,7 +1127,7 @@ import { Container, Col, Row } from 'react-bootstrap';
 					"{props:{\"data-astro-id\":\"EX5CHM4O\"},children:`div.astro-EX5CHM4O{color:green;}`}",
 					"{props:{\"global\":true},children:`div { color: red }`}",
 				},
-				code: "<head>\n\n\n\n\n\n\n</head>\n<div class=\"astro-EX5CHM4O\"></div>",
+				code: "<head>\n\n\n\n\n\n\n" + RENDER_HEAD_RESULT + "</head>\n<div class=\"astro-EX5CHM4O\"></div>",
 			},
 		},
 		{
@@ -1225,7 +1226,7 @@ const { product } = Astro.props;
 
   <link rel="icon" type="image/svg+xml" href="/favicon.svg">
   <link rel="stylesheet" href="/style/global.css">
-</head>
+` + RENDER_HEAD_RESULT + `</head>
 <body>
   ${$$renderComponent($$result,'Header',Header,{})}
   <div class="product-page">

From b456aeb3053463b3be834dfc830f26e302457c0e Mon Sep 17 00:00:00 2001
From: Nate Moore <nate@skypack.dev>
Date: Mon, 24 Jan 2022 16:02:31 -0600
Subject: [PATCH 4/4] chore: add changeset

---
 .changeset/tasty-garlics-call.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/tasty-garlics-call.md

diff --git a/.changeset/tasty-garlics-call.md b/.changeset/tasty-garlics-call.md
new file mode 100644
index 000000000..bee3440cd
--- /dev/null
+++ b/.changeset/tasty-garlics-call.md
@@ -0,0 +1,5 @@
+---
+'@astrojs/compiler': minor
+---
+
+Do not render implicit tags created during the parsing process