small tweak, possibly ahead of a much larger one

src/generators/Generator.ts

@@ -201,7 +201,8 @@ export default class Generator {
 	}
 
 	contextualise(
-		block: DomBlock | SsrBlock,
+		contexts: Map<string, string>,
+		indexes: Map<string, string>,
 		expression: Node,
 		context: string,
 		isEventHandler: boolean
@@ -215,7 +216,6 @@ export default class Generator {
 		const usedIndexes: Set<string> = new Set();
 
 		const { code, helpers } = this;
-		const { contexts, indexes } = block;
 
 		let scope: Scope;
 		let lexicalDepth = 0;

src/generators/dom/Block.ts

@@ -164,12 +164,7 @@ export default class Block {
 	}
 
 	contextualise(expression: Node, context?: string, isEventHandler?: boolean) {
-		return this.generator.contextualise(
+		return this.generator.contextualise(this.contexts, this.indexes, expression, context, isEventHandler);
-			this,
-			expression,
-			context,
-			isEventHandler
-		);
 	}
 
 	mount(name: string, parentNode: string) {

src/generators/server-side-rendering/Block.ts

@@ -44,11 +44,6 @@ export default class Block {
 	}
 
 	contextualise(expression: Node, context?: string, isEventHandler?: boolean) {
-		return this.generator.contextualise(
+		return this.generator.contextualise(this.contexts, this.indexes, expression, context, isEventHandler);
-			this,
-			expression,
-			context,
-			isEventHandler
-		);
 	}
 }