From f8a8c06ee3505408a9fcd69423cd778092e97d53 Mon Sep 17 00:00:00 2001
From: Conduitry <git@chor.date>
Date: Tue, 10 Dec 2019 09:24:40 -0500
Subject: [PATCH] fix bitmask overflow when using slotted components (#4077)

---
 src/compiler/compile/render_dom/Renderer.ts         | 4 ++--
 test/runtime/samples/bitmask-overflow-3/_config.js  | 3 +++
 test/runtime/samples/bitmask-overflow-3/main.svelte | 4 ++++
 3 files changed, 9 insertions(+), 2 deletions(-)
 create mode 100644 test/runtime/samples/bitmask-overflow-3/_config.js
 create mode 100644 test/runtime/samples/bitmask-overflow-3/main.svelte

diff --git a/src/compiler/compile/render_dom/Renderer.ts b/src/compiler/compile/render_dom/Renderer.ts
index 0b2dc6bfbc..046a90b684 100644
--- a/src/compiler/compile/render_dom/Renderer.ts
+++ b/src/compiler/compile/render_dom/Renderer.ts
@@ -86,8 +86,6 @@ export default class Renderer {
 			null
 		);
 
-		this.context_overflow = this.context.length > 31;
-
 		// TODO messy
 		this.blocks.forEach(block => {
 			if (block instanceof Block) {
@@ -99,6 +97,8 @@ export default class Renderer {
 
 		this.fragment.render(this.block, null, x`#nodes` as Identifier);
 
+		this.context_overflow = this.context.length > 31;
+
 		this.context.forEach(member => {
 			const { variable } = member;
 			if (variable) {
diff --git a/test/runtime/samples/bitmask-overflow-3/_config.js b/test/runtime/samples/bitmask-overflow-3/_config.js
new file mode 100644
index 0000000000..aee7d3237e
--- /dev/null
+++ b/test/runtime/samples/bitmask-overflow-3/_config.js
@@ -0,0 +1,3 @@
+export default {
+	error: `A is not defined`,
+};
\ No newline at end of file
diff --git a/test/runtime/samples/bitmask-overflow-3/main.svelte b/test/runtime/samples/bitmask-overflow-3/main.svelte
new file mode 100644
index 0000000000..aa2c56a147
--- /dev/null
+++ b/test/runtime/samples/bitmask-overflow-3/main.svelte
@@ -0,0 +1,4 @@
+<script>
+	let x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15, x16, x17, x18, x19, x20, x21, x22, x23, x24, x25, x26, x27, x28, x29, x30, x31;
+</script>
+<A>foo</A>