failing test for #381

Author: Rich-Harris

test/js/index.js

@@ -18,9 +18,16 @@ describe( 'js', () => {
 			dir = path.resolve( 'test/js/samples', dir );
 			const input = fs.readFileSync( `${dir}/input.html`, 'utf-8' ).replace( /\s+$/, '' );
 
-			const actual = svelte.compile( input, {
-				shared: true
-			}).code;
+			let actual;
+
+			try {
+				actual = svelte.compile( input, {
+					shared: true
+				}).code;
+			} catch ( err ) {
+				console.log( err.frame );
+				throw err;
+			}
 
 			fs.writeFileSync( `${dir}/_actual.js`, actual );
 			const expected = fs.readFileSync( `${dir}/expected.js`, 'utf-8' );

test/js/samples/each-block-changed-check/expected.js

@@ -0,0 +1,146 @@
+import { appendNode, assign, createComment, createElement, createText, destroyEach, detachBetween, detachNode, dispatchObservers, insertNode, proto } from "svelte/shared.js";
+
+function create_main_fragment ( root, component ) {
+	var each_block_anchor = createComment();
+	var each_block_value = root.comments;
+	var each_block_iterations = [];
+
+	for ( var i = 0; i < each_block_value.length; i += 1 ) {
+		each_block_iterations[i] = create_each_block( root, each_block_value, each_block_value[i], i, component );
+	}
+
+	return {
+		mount: function ( target, anchor ) {
+			insertNode( each_block_anchor, target, anchor );
+
+			for ( var i = 0; i < each_block_iterations.length; i += 1 ) {
+				each_block_iterations[i].mount( each_block_anchor.parentNode, each_block_anchor );
+			}
+		},
+
+		update: function ( changed, root ) {
+			if ( 'comments' in changed || 'time' in changed ) {
+				var each_block_value = root.comments;
+
+				for ( var i = 0; i < each_block_value.length; i += 1 ) {
+					if ( !each_block_iterations[i] ) {
+						each_block_iterations[i] = create_each_block( root, each_block_value, each_block_value[i], i, component );
+						each_block_iterations[i].mount( each_block_anchor.parentNode, each_block_anchor );
+					} else {
+						each_block_iterations[i].update( changed, root, each_block_value, each_block_value[i], i );
+					}
+				}
+
+				destroyEach( each_block_iterations, true, each_block_value.length );
+
+				each_block_iterations.length = each_block_value.length;
+			}
+		},
+
+		destroy: function ( detach ) {
+			destroyEach( each_block_iterations, detach, 0 );
+
+			if ( detach ) {
+				detachNode( each_block_anchor );
+			}
+		}
+	};
+}
+
+function create_each_block ( root, each_block_value, comment, comment_index, component ) {
+	var div = createElement( 'div' );
+	div.className = "comment";
+	var span = createElement( 'span' );
+	appendNode( span, div );
+	span.className = "meta";
+	var last_text = comment.author;
+	var text = createText( last_text );
+	appendNode( text, span );
+	appendNode( createText( " wrote " ), span );
+	var last_text_2 = root.elapsed(comment.time, root.time);
+	var text_2 = createText( last_text_2 );
+	appendNode( text_2, span );
+	appendNode( createText( " ago:" ), span );
+	appendNode( createText( "\n\n\t\t" ), div );
+	var raw_before = createElement( 'noscript' );
+	appendNode( raw_before, div );
+	var raw_after = createElement( 'noscript' );
+	appendNode( raw_after, div );
+	var last_raw = comment.html;
+	raw_before.insertAdjacentHTML( 'afterend', last_raw );
+
+	return {
+		mount: function ( target, anchor ) {
+			insertNode( div, target, anchor );
+		},
+
+		update: function ( changed, root, each_block_value, comment, comment_index ) {
+			var tmp;
+
+			if ( ( tmp = comment.author ) !== last_text ) {
+				text.data = last_text = tmp;
+			}
+
+			if ( ( tmp = root.elapsed(comment.time, root.time) ) !== last_text_2 ) {
+				text_2.data = last_text_2 = tmp;
+			}
+
+			if ( ( tmp = comment.html ) !== last_raw ) {
+				last_raw = tmp;
+				detachBetween( raw_before, raw_after );
+				raw_before.insertAdjacentHTML( 'afterend', last_raw );
+			}
+		},
+
+		destroy: function ( detach ) {
+			if ( detach ) {
+				detachBetween( raw_before, raw_after );
+
+				detachNode( div );
+			}
+		}
+	};
+}
+
+function SvelteComponent ( options ) {
+	options = options || {};
+	this._state = options.data || {};
+
+	this._observers = {
+		pre: Object.create( null ),
+		post: Object.create( null )
+	};
+
+	this._handlers = Object.create( null );
+
+	this._root = options._root;
+	this._yield = options._yield;
+
+	this._torndown = false;
+
+	this._fragment = create_main_fragment( this._state, this );
+	if ( options.target ) this._fragment.mount( options.target, null );
+}
+
+assign( SvelteComponent.prototype, proto );
+
+SvelteComponent.prototype._set = function _set ( newState ) {
+	var oldState = this._state;
+	this._state = assign( {}, oldState, newState );
+
+	dispatchObservers( this, this._observers.pre, newState, oldState );
+	if ( this._fragment ) this._fragment.update( newState, this._state );
+	dispatchObservers( this, this._observers.post, newState, oldState );
+};
+
+SvelteComponent.prototype.teardown = SvelteComponent.prototype.destroy = function destroy ( detach ) {
+	this.fire( 'destroy' );
+
+	this._fragment.destroy( detach !== false );
+	this._fragment = null;
+
+	this._state = {};
+	this._torndown = true;
+};
+
+export default SvelteComponent;

test/js/samples/each-block-changed-check/input.html

@@ -0,0 +1,9 @@
+{{#each comments as comment}}
+	<div class='comment'>
+		<span class='meta'>
+			{{comment.author}} wrote {{elapsed(comment.time, time)}} ago:
+		</span>
+
+		{{{comment.html}}}
+	</div>
+{{/each}}