pass params to get_block (#667)

src/generators/dom/visitors/IfBlock.ts

@@ -395,7 +395,7 @@ function compoundWithOutros(
 	if (dynamic) {
 		block.builders.update.addBlock(deindent`
 			var ${previous_block_index} = ${current_block_index};
-			${current_block_index} = ${get_block}( state );
+			${current_block_index} = ${get_block}( ${params} );
 			if ( ${current_block_index} === ${previous_block_index} ) {
 				${if_current_block_index}${if_blocks}[ ${current_block_index} ].update( changed, ${params} );
 			} else {
@@ -405,7 +405,7 @@ function compoundWithOutros(
 	} else {
 		block.builders.update.addBlock(deindent`
 			var ${previous_block_index} = ${current_block_index};
-			${current_block_index} = ${get_block}( state );
+			${current_block_index} = ${get_block}( ${params} );
 			if ( ${current_block_index} !== ${previous_block_index} ) {
 				${changeBlock}
 			}

test/runtime/samples/transition-js-if-block-in-each-block-bidi-2/_config.js

@@ -0,0 +1,34 @@
+export default {
+	solo: true,
+
+	data: {
+		foo: false,
+		threshold: 5
+	},
+
+	html: `
+		<div>1</div>
+		<div>2</div>
+		<div>3</div>
+		<div>4</div>
+		<div>5</div>
+	`,
+
+	test ( assert, component, target, window, raf ) {
+		const divs = target.querySelectorAll('div');
+
+		raf.tick(100);
+
+		component.set({ threshold: 4 });
+
+		raf.tick( 200 );
+		assert.htmlEqual(target.innerHTML, `
+			<div>1</div>
+			<div>2</div>
+			<div>3</div>
+			<div>4</div>
+		`);
+
+		component.destroy();
+	}
+};

test/runtime/samples/transition-js-if-block-in-each-block-bidi-2/main.html

@@ -0,0 +1,26 @@
+{{#each [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] as number}}
+	{{#if foo}}
+		{{#if threshold >= number}}
+			<div transition:foo>{{number}}</div>
+		{{/if}}
+	{{else}}
+		{{#if threshold >= number}}
+			<div transition:foo>{{number}}</div>
+		{{/if}}
+	{{/if}}
+{{/each}}
+
+<script>
+	export default {
+		transitions: {
+			foo: function ( node ) {
+				return {
+					duration: 100,
+					tick: t => {
+						node.foo = t;
+					}
+				};
+			}
+		}
+	};
+</script>