Fix `{...spread}` props (#522)

* fix(#521): allow spread props

* chore: add spread prop tests

* fix: falsy expressions should only be skipped in 'Expression' case

* fix: support primitives in expressions (objects, arrays)

2 files changed, 1 insertions, 3 deletions

diff --git a/packages/astro-parser/src/parse/read/expression.ts b/packages/astro-parser/src/parse/read/expression.ts
index c1fd6031b..98d94e26a 100644
--- a/packages/astro-parser/src/parse/read/expression.ts
+++ b/packages/astro-parser/src/parse/read/expression.ts
@@ -240,7 +240,6 @@ export const parse_expression_at = (source: string, index: number): Expression =
   return expression;
 };
 
-// @ts-ignore
 export default function read_expression(parser: Parser) {
   try {
     const expression = parse_expression_at(parser.template, parser.index);
diff --git a/packages/astro-parser/src/parse/state/tag.ts b/packages/astro-parser/src/parse/state/tag.ts
index 28783df67..719baa55d 100644
--- a/packages/astro-parser/src/parse/state/tag.ts
+++ b/packages/astro-parser/src/parse/state/tag.ts
@@ -349,8 +349,7 @@ function read_attribute(parser: Parser, unique_names: Set<string>) {
     parser.allow_whitespace();
 
     if (parser.eat('...')) {
-      const { expression } = read_expression(parser);
-
+      const expression = read_expression(parser);
       parser.allow_whitespace();
       parser.eat('}', true);