From 228832c9a3a6fdb8c11cdbb942444734686a04f6 Mon Sep 17 00:00:00 2001
From: Roy Choo <roychoo@hotmail.com>
Date: Tue, 22 Jun 2021 23:03:08 +0800
Subject: [PATCH] fix: :global(...):some-pseudoclass should be considered
 global (#6317)

---
 src/compiler/compile/css/Selector.ts              |  5 +++--
 .../css-invalid-global-placement-2/errors.json    | 15 +++++++++++++++
 .../css-invalid-global-placement-2/input.svelte   |  5 +++++
 3 files changed, 23 insertions(+), 2 deletions(-)
 create mode 100644 test/validator/samples/css-invalid-global-placement-2/errors.json
 create mode 100644 test/validator/samples/css-invalid-global-placement-2/input.svelte

diff --git a/src/compiler/compile/css/Selector.ts b/src/compiler/compile/css/Selector.ts
index d7e80f5499a2..49ba5e71e587 100644
--- a/src/compiler/compile/css/Selector.ts
+++ b/src/compiler/compile/css/Selector.ts
@@ -607,9 +607,10 @@ class Block {
 
 	get global() {
 		return (
-			this.selectors.length === 1 &&
+			this.selectors.length >= 1 &&
 			this.selectors[0].type === 'PseudoClassSelector' &&
-			this.selectors[0].name === 'global'
+			this.selectors[0].name === 'global' &&
+			this.selectors.every((selector) => selector.type === 'PseudoClassSelector')
 		);
 	}
 }
diff --git a/test/validator/samples/css-invalid-global-placement-2/errors.json b/test/validator/samples/css-invalid-global-placement-2/errors.json
new file mode 100644
index 000000000000..4594469cc21b
--- /dev/null
+++ b/test/validator/samples/css-invalid-global-placement-2/errors.json
@@ -0,0 +1,15 @@
+[{
+	"code": "css-invalid-global",
+	"message": ":global(...) can be at the start or end of a selector sequence, but not in the middle",
+	"start": {
+		"line": 2,
+		"column": 6,
+		"character": 14
+	},
+	"end": {
+		"line": 2,
+		"column": 19,
+		"character": 27
+	},
+	"pos": 14
+}]
diff --git a/test/validator/samples/css-invalid-global-placement-2/input.svelte b/test/validator/samples/css-invalid-global-placement-2/input.svelte
new file mode 100644
index 000000000000..75bd7b66e1d0
--- /dev/null
+++ b/test/validator/samples/css-invalid-global-placement-2/input.svelte
@@ -0,0 +1,5 @@
+<style>
+	.foo :global(.bar):first-child .baz {
+		color: red;
+	}
+</style>