fix(editor): type nested attribute expressions

bun.lock

@@ -320,7 +320,7 @@
     },
     "packages/compiler": {
       "name": "@wrnexus/compiler",
-      "version": "0.8.21",
+      "version": "0.8.22",
       "dependencies": {
         "@wrnexus/csr": "workspace:*",
         "@wrnexus/store": "workspace:*",
@@ -668,7 +668,7 @@
     },
     "packages/syntax": {
       "name": "@wrnexus/syntax",
-      "version": "0.8.17",
+      "version": "0.8.18",
     },
     "packages/test": {
       "name": "@wrnexus/test",
@@ -680,7 +680,7 @@
     },
     "packages/typecheck": {
       "name": "@wrnexus/typecheck",
-      "version": "0.8.15",
+      "version": "0.8.16",
       "dependencies": {
         "@wrnexus/syntax": "workspace:*",
         "typescript": "^6.0.3",

editors/vscode/src/compiler.cjs

@@ -1,6 +1,6 @@
 "use strict";
 // Generated by scripts/build-editor-compiler.mjs. Do not edit directly.
-// WRN editor compiler source hash: edac5449f97a341e79ee7bf7e7f3676f42bbb4ec6aac4432f5ace9ff88f4f85c
+// WRN editor compiler source hash: 3d346a264807ba7b107584dc9a7b505b1d14057b2ad1aa85c5ea890f9b09c272
 // WRN editor compiler generator hash: f8c1094b47e695151205899de28cd63d574356d26ac49219c4a43db0f2391ef5
 // Generated with TypeScript: 6.0.3
 const __nodeRequire = require;
@@ -4067,6 +4067,7 @@ function islandNamesFrom(imports) {
 Object.defineProperty(exports, "__esModule", { value: true });
 exports.NativeCompileError = void 0;
 exports.generateNative = generateNative;
+const syntax_1 = require("@wrnexus/syntax");
 class NativeCompileError extends Error {
     constructor(message) {
         super(message);
@@ -4132,12 +4133,12 @@ function expression(value) {
 function textJsx(value) {
     const pieces = [];
     let last = 0;
-    for (const match of value.matchAll(/\{([^{}]+)\}/g)) {
-        if (match.index > last)
-            pieces.push(value.slice(last, match.index));
-        const expr = match[1].trim();
+    for (const segment of (0, syntax_1.extractInterpolations)(value)) {
+        if (segment.start > last)
+            pieces.push(value.slice(last, segment.start));
+        const expr = segment.expression;
         pieces.push(expr.startsWith("t:") ? `{${JSON.stringify(expr.slice(2).trim())}}` : `{${expr}}`);
-        last = match.index + match[0].length;
+        last = segment.end;
     }
     pieces.push(value.slice(last));
     return pieces.join("").replace(/([<>])/g, (char) => (char === "<" ? "&lt;" : "&gt;"));
@@ -6388,7 +6389,7 @@ var __exportStar = (this && this.__exportStar) || function(m, exports) {
     for (var p in m) if (p !== "default" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 };
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.stripRuntimeFunctionModifiers = exports.parseStructuredImports = exports.parseStoreLifecycle = exports.parseStateDeclarations = exports.parseRuntimeFunctions = exports.parsePersist = exports.parseOutputs = exports.parseComputedDeclarations = exports.supportsSyntaxFeature = exports.diagnosticSummary = exports.sliceSource = exports.createSourceRange = exports.WRN_SYNTAX_FEATURES = exports.WRN_SYNTAX_VERSION = exports.positionAt = exports.isRuntimeTarget = exports.isHydrationStrategy = exports.formatDiagnostic = exports.diagnosticFromError = exports.diagnose = exports.containsReadonlyPropMutation = exports.classifyParseError = exports.assertValidAst = exports.validateTypedInitializer = exports.runtimeTypeOf = exports.inferredRuntimeType = exports.eraseFunctionTypes = exports.VOID_ELEMENTS = exports.ParseError = exports.parseHtmlView = exports.parse = exports.formatWrn = exports.skipLiteralOrComment = exports.LexError = exports.Lexer = void 0;
+exports.stripRuntimeFunctionModifiers = exports.parseStructuredImports = exports.parseStoreLifecycle = exports.parseStateDeclarations = exports.parseRuntimeFunctions = exports.parsePersist = exports.parseOutputs = exports.parseComputedDeclarations = exports.supportsSyntaxFeature = exports.diagnosticSummary = exports.sliceSource = exports.createSourceRange = exports.WRN_SYNTAX_FEATURES = exports.WRN_SYNTAX_VERSION = exports.positionAt = exports.isRuntimeTarget = exports.isHydrationStrategy = exports.formatDiagnostic = exports.diagnosticFromError = exports.diagnose = exports.containsReadonlyPropMutation = exports.classifyParseError = exports.assertValidAst = exports.validateTypedInitializer = exports.runtimeTypeOf = exports.inferredRuntimeType = exports.eraseFunctionTypes = exports.extractInterpolations = exports.VOID_ELEMENTS = exports.ParseError = exports.parseHtmlView = exports.parse = exports.formatWrn = exports.skipLiteralOrComment = exports.LexError = exports.Lexer = void 0;
 var tokenizer_ts_1 = require("./tokenizer.js");
 Object.defineProperty(exports, "Lexer", { enumerable: true, get: function () { return tokenizer_ts_1.Lexer; } });
 Object.defineProperty(exports, "LexError", { enumerable: true, get: function () { return tokenizer_ts_1.LexError; } });
@@ -6400,6 +6401,8 @@ Object.defineProperty(exports, "parse", { enumerable: true, get: function () { r
 Object.defineProperty(exports, "parseHtmlView", { enumerable: true, get: function () { return parser_ts_1.parseHtmlView; } });
 Object.defineProperty(exports, "ParseError", { enumerable: true, get: function () { return parser_ts_1.ParseError; } });
 Object.defineProperty(exports, "VOID_ELEMENTS", { enumerable: true, get: function () { return parser_ts_1.VOID_ELEMENTS; } });
+var interpolation_ts_1 = require("./interpolation.js");
+Object.defineProperty(exports, "extractInterpolations", { enumerable: true, get: function () { return interpolation_ts_1.extractInterpolations; } });
 var types_ts_1 = require("./types.js");
 Object.defineProperty(exports, "eraseFunctionTypes", { enumerable: true, get: function () { return types_ts_1.eraseFunctionTypes; } });
 Object.defineProperty(exports, "inferredRuntimeType", { enumerable: true, get: function () { return types_ts_1.inferredRuntimeType; } });
@@ -6433,6 +6436,50 @@ Object.defineProperty(exports, "parseStoreLifecycle", { enumerable: true, get: f
 Object.defineProperty(exports, "parseStructuredImports", { enumerable: true, get: function () { return v060_ts_1.parseStructuredImports; } });
 Object.defineProperty(exports, "stripRuntimeFunctionModifiers", { enumerable: true, get: function () { return v060_ts_1.stripRuntimeFunctionModifiers; } });
 
+},
+"packages/syntax/src/interpolation.ts": function (module, exports, require, __filename, __dirname) {
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.extractInterpolations = extractInterpolations;
+/** Extract top-level `{...}` expressions while preserving nested object/array literals. */
+function extractInterpolations(value) {
+    const segments = [];
+    let index = 0;
+    while (index < value.length) {
+        if (value[index] !== "{") {
+            index++;
+            continue;
+        }
+        const start = index++;
+        let depth = 1;
+        let quote = null;
+        while (index < value.length && depth > 0) {
+            const char = value[index];
+            if (quote) {
+                if (char === "\\" && index + 1 < value.length)
+                    index += 2;
+                else {
+                    if (char === quote)
+                        quote = null;
+                    index++;
+                }
+                continue;
+            }
+            if (char === '"' || char === "'" || char === "`")
+                quote = char;
+            else if (char === "{")
+                depth++;
+            else if (char === "}")
+                depth--;
+            index++;
+        }
+        if (depth === 0) {
+            segments.push({ expression: value.slice(start + 1, index - 1).trim(), start, end: index });
+        }
+    }
+    return segments;
+}
+
 },
 "packages/syntax/src/parser.ts": function (module, exports, require, __filename, __dirname) {
 "use strict";

editors/vscode/src/language-server.cjs

@@ -1,5 +1,5 @@
 #!/usr/bin/env node
-// WRN editor language server source hash: 8579d66eaa70e4696e7a7fb8da796a292bf0b1395d3859a92d4cc6aa200ba71c
+// WRN editor language server source hash: 5258b3e76cec47df752d4bb886fbd57a3f3c4af9ca9b6b2bf6742c8d78025ff1
 // WRN editor language server generator hash: f593a44aaf05495b789ce7a3086bee1eebb951b884d41c0e017bbcfe5f547e72
 // @bun @bun-cjs
 (function(exports, require, module, __filename, __dirname) {var __create = Object.create;
@@ -172419,6 +172419,44 @@ function parseHtmlView(src, pos) {
   const nodes = parseNodeList("root");
   return { nodes, endPos: i };
 }
+// packages/syntax/src/interpolation.ts
+function extractInterpolations(value) {
+  const segments = [];
+  let index = 0;
+  while (index < value.length) {
+    if (value[index] !== "{") {
+      index++;
+      continue;
+    }
+    const start = index++;
+    let depth = 1;
+    let quote = null;
+    while (index < value.length && depth > 0) {
+      const char = value[index];
+      if (quote) {
+        if (char === "\\" && index + 1 < value.length)
+          index += 2;
+        else {
+          if (char === quote)
+            quote = null;
+          index++;
+        }
+        continue;
+      }
+      if (char === '"' || char === "'" || char === "`")
+        quote = char;
+      else if (char === "{")
+        depth++;
+      else if (char === "}")
+        depth--;
+      index++;
+    }
+    if (depth === 0) {
+      segments.push({ expression: value.slice(start + 1, index - 1).trim(), start, end: index });
+    }
+  }
+  return segments;
+}
 // packages/syntax/src/diagnostics.ts
 function stripAsciiControlAndSpace(value) {
   let result = "";
@@ -173152,6 +173190,7 @@ function virtualTypeScriptModule(source, filePath = "component.wrn", appRoot = f
     append(`declare const api: { ${apiType} };`);
   append(`declare const props: Readonly<${ast.name}Props>;`);
   append("declare const refs: Record<string, Element | null>;");
+  append("declare const toast: ((message: string, options?: Record<string, unknown>) => unknown) & { success(message: string, options?: Record<string, unknown>): unknown; error(message: string, options?: Record<string, unknown>): unknown; danger(message: string, options?: Record<string, unknown>): unknown; warning(message: string, options?: Record<string, unknown>): unknown; info(message: string, options?: Record<string, unknown>): unknown; dismiss(id: string | number): void; clear(): void };");
   append("declare function useFetch(path: string, method?: string | { method?: string; query?: unknown; params?: unknown; body?: unknown; data?: unknown }, input?: unknown): Promise<any>;");
   append(ast.kind === "global-store" || ast.kind === "page-store" ? storeContract(ast) : componentContract(ast));
   append(importedWrnDeclarations(ast, filePath, appRoot));
@@ -173183,7 +173222,7 @@ ${sharedAliases}`);
     for (const node of nodes) {
       if (node.type === "element") {
         for (const attr of node.attrs) {
-          const expressions = attr.event ? [attr.value] : [...attr.value.matchAll(/\{([^{}]+)\}/g)].map((match) => match[1].trim());
+          const expressions = attr.event ? [attr.value] : extractInterpolations(attr.value).map((segment) => segment.expression);
           for (const expression of expressions) {
             if (!expression.trim())
               continue;

packages/compiler/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@wrnexus/compiler",
-  "version": "0.8.21",
+  "version": "0.8.22",
   "type": "module",
   "main": "src/index.ts",
   "exports": {

packages/compiler/src/native-codegen.ts

@@ -1,4 +1,4 @@
-import type { Attr, PageAst, ViewNode } from "@wrnexus/syntax";
+import { extractInterpolations, type Attr, type PageAst, type ViewNode } from "@wrnexus/syntax";
 
 export class NativeCompileError extends Error {
   constructor(message: string) {
@@ -68,11 +68,11 @@ function expression(value: string): string | null {
 function textJsx(value: string): string {
   const pieces: string[] = [];
   let last = 0;
-  for (const match of value.matchAll(/\{([^{}]+)\}/g)) {
-    if (match.index! > last) pieces.push(value.slice(last, match.index));
-    const expr = match[1]!.trim();
+  for (const segment of extractInterpolations(value)) {
+    if (segment.start > last) pieces.push(value.slice(last, segment.start));
+    const expr = segment.expression;
     pieces.push(expr.startsWith("t:") ? `{${JSON.stringify(expr.slice(2).trim())}}` : `{${expr}}`);
-    last = match.index! + match[0].length;
+    last = segment.end;
   }
   pieces.push(value.slice(last));
   return pieces.join("").replace(/([<>])/g, (char) => (char === "<" ? "&lt;" : "&gt;"));

packages/syntax/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@wrnexus/syntax",
-  "version": "0.8.17",
+  "version": "0.8.18",
   "type": "module",
   "main": "src/index.ts",
   "exports": {

packages/syntax/src/index.ts

@@ -2,6 +2,8 @@ export { Lexer, LexError, skipLiteralOrComment } from "./tokenizer.ts";
 export { formatWrn } from "./formatter.ts";
 export type { FormatWrnOptions } from "./formatter.ts";
 export { parse, parseHtmlView, ParseError, VOID_ELEMENTS } from "./parser.ts";
+export { extractInterpolations } from "./interpolation.ts";
+export type { InterpolationSegment } from "./interpolation.ts";
 export type {
   ActionBlock,
   ApiBlock,

packages/syntax/src/interpolation.ts

@@ -0,0 +1,39 @@
+export interface InterpolationSegment {
+  expression: string;
+  start: number;
+  end: number;
+}
+
+/** Extract top-level `{...}` expressions while preserving nested object/array literals. */
+export function extractInterpolations(value: string): InterpolationSegment[] {
+  const segments: InterpolationSegment[] = [];
+  let index = 0;
+  while (index < value.length) {
+    if (value[index] !== "{") {
+      index++;
+      continue;
+    }
+    const start = index++;
+    let depth = 1;
+    let quote: string | null = null;
+    while (index < value.length && depth > 0) {
+      const char = value[index]!;
+      if (quote) {
+        if (char === "\\" && index + 1 < value.length) index += 2;
+        else {
+          if (char === quote) quote = null;
+          index++;
+        }
+        continue;
+      }
+      if (char === '"' || char === "'" || char === "`") quote = char;
+      else if (char === "{") depth++;
+      else if (char === "}") depth--;
+      index++;
+    }
+    if (depth === 0) {
+      segments.push({ expression: value.slice(start + 1, index - 1).trim(), start, end: index });
+    }
+  }
+  return segments;
+}

packages/syntax/test/syntax.test.ts

@@ -1,5 +1,5 @@
 import { expect, test } from "bun:test";
-import { diagnose, formatDiagnostic, parse } from "../src/index.ts";
+import { diagnose, extractInterpolations, formatDiagnostic, parse } from "../src/index.ts";
 
 test("parses explicit rendering modes and the never hydration alias", () => {
   const ast = parse(`page Marketing {
@@ -337,3 +337,14 @@ test("a block comment inside props is still refused with its own message", () =>
 `;
   expect(() => parse(source)).toThrow("Block comments are not allowed inside props");
 });
+
+test("extracts nested object and array interpolation as one expression", () => {
+  const value = `prefix {[{ label: 'One', meta: { count: 1 } }, { label: "Two" }]} suffix`;
+  expect(extractInterpolations(value)).toEqual([
+    {
+      expression: `[{ label: 'One', meta: { count: 1 } }, { label: "Two" }]`,
+      start: 7,
+      end: value.length - 7,
+    },
+  ]);
+});

packages/typecheck/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@wrnexus/typecheck",
-  "version": "0.8.15",
+  "version": "0.8.16",
   "type": "module",
   "main": "src/index.ts",
   "exports": {

packages/typecheck/src/index.ts

@@ -3,6 +3,7 @@ import { dirname, join, normalize, resolve } from "node:path";
 import ts from "typescript";
 import {
   containsReadonlyPropMutation,
+  extractInterpolations,
   inferredRuntimeType,
   parse,
   runtimeTypeOf,
@@ -332,6 +333,9 @@ export function virtualTypeScriptModule(
   if (ast.dataApis.length) append(`declare const api: { ${apiType} };`);
   append(`declare const props: Readonly<${ast.name}Props>;`);
   append("declare const refs: Record<string, Element | null>;");
+  append(
+    "declare const toast: ((message: string, options?: Record<string, unknown>) => unknown) & { success(message: string, options?: Record<string, unknown>): unknown; error(message: string, options?: Record<string, unknown>): unknown; danger(message: string, options?: Record<string, unknown>): unknown; warning(message: string, options?: Record<string, unknown>): unknown; info(message: string, options?: Record<string, unknown>): unknown; dismiss(id: string | number): void; clear(): void };",
+  );
   append(
     "declare function useFetch(path: string, method?: string | { method?: string; query?: unknown; params?: unknown; body?: unknown; data?: unknown }, input?: unknown): Promise<any>;",
   );
@@ -382,7 +386,7 @@ export function virtualTypeScriptModule(
         for (const attr of node.attrs) {
           const expressions = attr.event
             ? [attr.value]
-            : [...attr.value.matchAll(/\{([^{}]+)\}/g)].map((match) => match[1]!.trim());
+            : extractInterpolations(attr.value).map((segment) => segment.expression);
           for (const expression of expressions) {
             if (!expression.trim()) continue;
             const declarations = [

packages/typecheck/test/typecheck.test.ts

@@ -112,3 +112,32 @@ test("accepts handler payload, loop locals, and the public useFetch helper", ()
   );
   expect(diagnostics.filter((diagnostic) => diagnostic.code === "WRN-TYPE-2304")).toEqual([]);
 });
+
+test("accepts multiline array props containing nested object literals", () => {
+  const root = app();
+  const diagnostics = checkWrnSource(
+    `page Contact {
+      view {
+        <div data-component="StatsBar" items="{[
+          { label: 'Product catalog', value: '81', suffix: ' apps' },
+          { label: 'Starting point', value: 'One workflow' }
+        ]}"></div>
+      }
+    }`,
+    { appRoot: root, filePath: join(root, "app", "pages", "contact.wrn") },
+  );
+  expect(diagnostics.filter((diagnostic) => diagnostic.code.startsWith("WRN-TYPE-"))).toEqual([]);
+});
+
+test("provides the toast API to view event expressions", () => {
+  const root = app();
+  const diagnostics = checkWrnSource(
+    `page Contact {
+      view {
+        <form @wrn:success="toast.success('Sent', { title: 'Request sent' })"></form>
+      }
+    }`,
+    { appRoot: root, filePath: join(root, "app", "pages", "contact.wrn") },
+  );
+  expect(diagnostics.filter((diagnostic) => diagnostic.code.startsWith("WRN-TYPE-"))).toEqual([]);
+});