store analysis for use during transformation

packages/svelte/src/compiler/phases/2-analyze/index.js

@@ -267,7 +267,8 @@ export function analyze_module(ast, options) {
 			scope,
 			scopes,
 			analysis: /** @type {ComponentAnalysis} */ (analysis),
-			class_state: null,
+			classes: new Map(),
+			class: null,
 			// TODO the following are not needed for modules, but we have to pass them in order to avoid type error,
 			// and reducing the type would result in a lot of tedious type casts elsewhere - find a good solution one day
 			ast_type: /** @type {any} */ (null),
@@ -626,7 +627,8 @@ export function analyze_component(root, source, options) {
 				has_props_rune: false,
 				component_slots: new Set(),
 				expression: null,
-				class_state: null,
+				classes: new Map(),
+				class: null,
 				function_depth: scope.function_depth,
 				reactive_statement: null
 			};
@@ -693,7 +695,8 @@ export function analyze_component(root, source, options) {
 				reactive_statement: null,
 				component_slots: new Set(),
 				expression: null,
-				class_state: null,
+				classes: new Map(),
+				class: null,
 				function_depth: scope.function_depth
 			};
 

packages/svelte/src/compiler/phases/2-analyze/types.d.ts

@@ -2,6 +2,7 @@ import type { Scope } from '../scope.js';
 import type { ComponentAnalysis, ReactiveStatement } from '../types.js';
 import type { AST, ExpressionMetadata, ValidatedCompileOptions } from '#compiler';
 import type { ClassAnalysis } from './visitors/shared/class-analysis.js';
+import type { ClassBody } from 'estree';
 
 export interface AnalysisState {
 	scope: Scope;
@@ -21,7 +22,9 @@ export interface AnalysisState {
 	expression: ExpressionMetadata | null;
 
 	/** Used to analyze class state. */
-	class_state: ClassAnalysis | null;
+	classes: Map<ClassBody, ClassAnalysis>;
+	class: ClassAnalysis | null;
+
 	function_depth: number;
 
 	// legacy stuff

packages/svelte/src/compiler/phases/2-analyze/visitors/AssignmentExpression.js

@@ -23,6 +23,6 @@ export function AssignmentExpression(node, context) {
 		}
 	}
 
-	context.state.class_state?.register?.(node, context);
+	context.state.class?.register?.(node, context);
 	context.next();
 }

packages/svelte/src/compiler/phases/2-analyze/visitors/CallExpression.js

@@ -118,7 +118,7 @@ export function CallExpression(node, context) {
 			const valid =
 				is_variable_declaration(parent, context) ||
 				is_class_property_definition(parent) ||
-				context.state.class_state?.is_class_property_assignment_at_constructor_root(
+				context.state.class?.is_class_property_assignment_at_constructor_root(
 					parent,
 					context.path.slice(0, -1)
 				);

packages/svelte/src/compiler/phases/2-analyze/visitors/ClassBody.js

@@ -9,6 +9,6 @@ import { ClassAnalysis } from './shared/class-analysis.js';
 export function ClassBody(node, context) {
 	context.next({
 		...context.state,
-		class_state: context.state.analysis.runes ? new ClassAnalysis() : null
+		class: context.state.analysis.runes ? new ClassAnalysis() : null
 	});
 }

packages/svelte/src/compiler/phases/2-analyze/visitors/PropertyDefinition.js

@@ -7,6 +7,6 @@
  * @param {Context} context
  */
 export function PropertyDefinition(node, context) {
-	context.state.class_state?.register(node, context);
+	context.state.class?.register(node, context);
 	context.next();
 }

packages/svelte/src/compiler/phases/2-analyze/visitors/shared/class-analysis.js

@@ -140,7 +140,7 @@ export class ClassAnalysis {
 			return;
 		}
 
-		e.constructor_state_reassignment(node, name, locate_node(existing.node));
+		e.constructor_state_reassignment(node);
 	}
 
 	/**