most ssr-only tests passing

src/compiler/compile/render_ssr/Renderer.ts

@@ -13,7 +13,7 @@ import Text from './handlers/Text';
 import Title from './handlers/Title';
 import { AppendTarget, CompileOptions } from '../../interfaces';
 import { INode } from '../nodes/interfaces';
-import { Expression } from 'estree';
+import { Expression, TemplateLiteral } from 'estree';
 
 type Handler = (node: any, renderer: Renderer, options: CompileOptions) => void;
 
@@ -45,22 +45,17 @@ export interface RenderOptions extends CompileOptions{
 export default class Renderer {
 	has_bindings = false;
 
-	state = {
-		quasi: {
-			type: 'TemplateElement',
-			value: { raw: '' }
-		}
-	};
-
-	literal = {
-		type: 'TemplateLiteral',
-		expressions: [],
-		quasis: []
-	};
+	stack: { current: { value: string }, literal: TemplateLiteral }[] = [];
+	current: { value: string };
+	literal: TemplateLiteral;
 
 	targets: AppendTarget[] = [];
 
-	append(code: string) {
+	constructor() {
+		this.push();
+	}
+
+	append() {
 		throw new Error('no more append');
 		// if (this.targets.length) {
 		// 	const target = this.targets[this.targets.length - 1];
@@ -72,17 +67,48 @@ export default class Renderer {
 	}
 
 	add_string(str: string) {
-		this.state.quasi.value.raw += str;
+		this.current.value += str;
 	}
 
 	add_expression(node: Expression) {
-		this.literal.quasis.push(this.state.quasi);
+		this.literal.quasis.push({
+			type: 'TemplateElement',
+			value: { raw: this.current.value, cooked: null },
+			tail: false
+		});
+
 		this.literal.expressions.push(node);
+		this.current = { value: '' };
+	}
 
-		this.state.quasi = {
-			type: 'TemplateElement',
-			value: { raw: '' }
+	push() {
+		const current = this.current = { value: '' };
+
+		const literal = this.literal = {
+			type: 'TemplateLiteral',
+			expressions: [],
+			quasis: []
 		};
+
+		this.stack.push({ current, literal })
+	}
+
+	pop() {
+		this.literal.quasis.push({
+			type: 'TemplateElement',
+			value: { raw: this.current.value, cooked: null },
+			tail: true
+		});
+
+		const popped = this.stack.pop();
+		const last = this.stack[this.stack.length - 1];
+
+		if (last) {
+			this.literal = last.literal;
+			this.current = last.current;
+		}
+
+		return popped.literal;
 	}
 
 	render(nodes: INode[], options: RenderOptions) {

src/compiler/compile/render_ssr/handlers/EachBlock.ts

@@ -1,29 +1,24 @@
-import { snip } from '../../utils/snip';
 import Renderer, { RenderOptions } from '../Renderer';
 import EachBlock from '../../nodes/EachBlock';
+import { x } from 'code-red';
 
 export default function(node: EachBlock, renderer: Renderer, options: RenderOptions) {
-	const snippet = snip(node.expression);
-
-	const { start, end } = node.context_node as any;
-
-	const ctx = node.index
-		? `([✂${start}-${end}✂], ${node.index})`
-		: `([✂${start}-${end}✂])`;
-
-	const open = `\${${node.else ? `${snippet}.length ? ` : ''}@each(${snippet}, ${ctx} => \``;
-	renderer.append(open);
+	const args = [node.context_node];
+	if (node.index) args.push({ type: 'Identifier', name: node.index });
 
+	renderer.push();
 	renderer.render(node.children, options);
+	const result = renderer.pop();
 
-	const close = `\`)`;
-	renderer.append(close);
+	const consequent = x`@each(${node.expression.node}, (${args}) => ${result})`;
 
 	if (node.else) {
-		renderer.append(` : \``);
+		renderer.push();
 		renderer.render(node.else.children, options);
-		renderer.append(`\``);
-	}
+		const alternate = renderer.pop();
 
-	renderer.append('}');
+		renderer.add_expression(x`${node.expression.node}.length ? ${consequent} : ${alternate}`);
+	} else {
+		renderer.add_expression(consequent);
+	}
 }

src/compiler/compile/render_ssr/handlers/Element.ts

@@ -143,7 +143,6 @@ export default function(node: Element, renderer: Renderer, options: RenderOption
 			} else if (attribute.chunks.length === 1 && attribute.chunks[0].type !== 'Text') {
 				const { name } = attribute;
 				const snippet = attribute.chunks[0].node;
-				console.log(snippet);
 				renderer.add_expression(x`@add_attribute("${name}", ${snippet}, ${boolean_attributes.has(name) ? 1 : 0})`);
 			} else {
 				renderer.add_string(` ${attribute.name}="`);

src/compiler/compile/render_ssr/handlers/Head.ts

@@ -1,10 +1,11 @@
 import Renderer, { RenderOptions } from '../Renderer';
 import Head from '../../nodes/Head';
+import { x } from 'code-red';
 
 export default function(node: Head, renderer: Renderer, options: RenderOptions) {
-	renderer.append('${($$result.head += `');
-
+	renderer.push();
 	renderer.render(node.children, options);
+	const result = renderer.pop();
 
-	renderer.append('`, "")}');
+	renderer.add_expression(x`($$result.head += ${result}, "")`);
 }

src/compiler/compile/render_ssr/handlers/HtmlTag.ts

@@ -1,7 +1,6 @@
-import { snip } from '../../utils/snip';
 import Renderer, { RenderOptions } from '../Renderer';
 import RawMustacheTag from '../../nodes/RawMustacheTag';
 
 export default function(node: RawMustacheTag, renderer: Renderer, _options: RenderOptions) {
-	renderer.append('${' + snip(node.expression) + '}');
+	renderer.add_expression(node.expression.node);
 }

src/compiler/compile/render_ssr/handlers/IfBlock.ts

@@ -1,18 +1,17 @@
-import { snip } from '../../utils/snip';
 import IfBlock from '../../nodes/IfBlock';
 import Renderer, { RenderOptions } from '../Renderer';
-export default function(node: IfBlock, renderer: Renderer, options: RenderOptions) {
-	const snippet = snip(node.expression);
+import { x } from 'code-red';
 
-	renderer.append('${ ' + snippet + ' ? `');
+export default function(node: IfBlock, renderer: Renderer, options: RenderOptions) {
+	const condition = node.expression.node;
 
+	renderer.push();
 	renderer.render(node.children, options);
+	const consequent = renderer.pop();
 
-	renderer.append('` : `');
-
-	if (node.else) {
-		renderer.render(node.else.children, options);
-	}
+	renderer.push();
+	if (node.else) renderer.render(node.else.children, options);
+	const alternate = renderer.pop();
 
-	renderer.append('` }');
+	renderer.add_expression(x`${condition} ? ${consequent} : ${alternate}`);
 }

src/compiler/compile/render_ssr/handlers/InlineComponent.ts

@@ -81,29 +81,24 @@ export default function(node: InlineComponent, renderer: Renderer, options: Rend
 	const slot_fns = [];
 
 	if (node.children.length) {
-		const target: AppendTarget = {
-			slots: { default: '' },
-			slot_stack: ['default']
-		};
-
-		renderer.targets.push(target);
-
 		const slot_scopes = new Map();
-		slot_scopes.set('default', get_slot_scope(node.lets));
+
+		renderer.push();
 
 		renderer.render(node.children, Object.assign({}, options, {
 			slot_scopes
 		}));
 
-		Object.keys(target.slots).forEach(name => {
-			const slot_scope = slot_scopes.get(name);
+		slot_scopes.set('default', {
+			input: get_slot_scope(node.lets),
+			output: renderer.pop()
+		});
 
+		slot_scopes.forEach(({ input, output }, name) => {
 			slot_fns.push(
-				`${quote_name_if_necessary(name)}: (${slot_scope}) => \`${target.slots[name]}\``
+				p`${name}: (${input}) => ${output}`
 			);
 		});
-
-		renderer.targets.pop();
 	}
 
 	const slots = x`{

src/compiler/compile/render_ssr/handlers/Slot.ts

@@ -2,15 +2,20 @@ import { quote_prop_if_necessary } from '../../../utils/names';
 import get_slot_data from '../../utils/get_slot_data';
 import Renderer, { RenderOptions } from '../Renderer';
 import Slot from '../../nodes/Slot';
+import { x } from 'code-red';
 
 export default function(node: Slot, renderer: Renderer, options: RenderOptions) {
-	const prop = quote_prop_if_necessary(node.slot_name);
-
 	const slot_data = get_slot_data(node.values, true);
 
-	renderer.append(`\${$$slots${prop} ? $$slots${prop}(${slot_data}) : \``);
-
+	console.group('push');
+	renderer.push();
+	console.groupEnd();
 	renderer.render(node.children, options);
+	const result = renderer.pop();
 
-	renderer.append(`\`}`);
+	renderer.add_expression(x`
+		$$slots.${node.slot_name}
+			? $$slots.${node.slot_name}(${slot_data})
+			: ${result}
+	`);
 }

src/compiler/compile/render_ssr/handlers/Title.ts

@@ -2,9 +2,9 @@ import Renderer, { RenderOptions } from '../Renderer';
 import Title from '../../nodes/Title';
 
 export default function(node: Title, renderer: Renderer, options: RenderOptions) {
-	renderer.append(`<title>`);
+	renderer.add_string(`<title>`);
 
 	renderer.render(node.children, options);
 
-	renderer.append(`</title>`);
+	renderer.add_string(`</title>`);
 }

src/compiler/compile/render_ssr/handlers/shared/get_slot_scope.ts

@@ -1,6 +1,21 @@
 import Let from '../../../nodes/Let';
+import { ObjectPattern } from 'estree';
 
-export function get_slot_scope(lets: Let[]) {
-	if (lets.length === 0) return '';
-	return `{ ${lets.map(l => l.value ? `${l.name}: ${l.value}` : l.name).join(', ')} }`;
+export function get_slot_scope(lets: Let[]): ObjectPattern {
+	if (lets.length === 0) return null;
+
+	return {
+		type: 'ObjectPattern',
+		properties: lets.map(l => {
+			return {
+				type: 'Property',
+				kind: 'init',
+				method: false,
+				shorthand: false,
+				computed: false,
+				key: l.name,
+				value: l.value || l.name
+			};
+		})
+	};
 }

src/compiler/compile/render_ssr/index.ts

@@ -20,7 +20,7 @@ export default function ssr(
 	}, options));
 
 	// TODO put this inside the Renderer class
-	renderer.literal.quasis.push(renderer.state.quasi);
+	const literal = renderer.pop();
 
 	// TODO concatenate CSS maps
 	const css = options.customElement ?
@@ -108,7 +108,7 @@ export default function ssr(
 
 				${reactive_declarations}
 
-				$$rendered = ${renderer.literal};
+				$$rendered = ${literal};
 			} while (!$$settled);
 
 			return $$rendered;
@@ -118,7 +118,7 @@ export default function ssr(
 
 			${reactive_declarations}
 
-			return ${renderer.literal};`;
+			return ${literal};`;
 
 	const blocks = [
 		...reactive_stores.map(({ name }) => {