Sanitize slice names in static match field identifiers

Slice names from FHIR may contain special characters like hyphens or
[x] brackets that are invalid in TypeScript identifiers. Strip [x] and
replace other special chars with underscores for static field names.

Author: ryukzak

src/api/writer-generator/typescript/profile.ts

@@ -38,6 +38,8 @@ import {
 import { resolveFieldTsType, resolvePrimitiveType, tsEnumType, tsGet, tsTypeFromIdentifier } from "./utils";
 import type { TypeScript } from "./writer";
 
+const tsSliceStaticName = (name: string): string => name.replace(/\[x\]/g, "").replace(/[^a-zA-Z0-9_$]/g, "_");
+
 type ProfileFactoryInfo = {
     autoFields: { name: string; value: string }[];
     /** Array fields with required slices — optional param with auto-merge of required stubs */
@@ -663,7 +665,7 @@ export const generateProfileClass = (
             w.line();
         }
         for (const sliceDef of sliceDefs) {
-            const staticName = `${sliceDef.sliceName}SliceMatch`;
+            const staticName = `${tsSliceStaticName(sliceDef.sliceName)}SliceMatch`;
             w.line(
                 `private static readonly ${staticName}: Record<string, unknown> = ${JSON.stringify(sliceDef.match)}`,
             );
@@ -685,7 +687,7 @@ export const generateProfileClass = (
         w.curlyBlock(["static", "createResource", `(${paramSignature})`, `: ${tsBaseResourceName}`], () => {
             // Generate merge logic for slice auto-fields
             for (const f of factoryInfo.sliceAutoFields) {
-                const matchRefs = f.sliceNames.map((s) => `${profileClassName}.${s}SliceMatch`);
+                const matchRefs = f.sliceNames.map((s) => `${profileClassName}.${tsSliceStaticName(s)}SliceMatch`);
                 w.line(`const ${f.name}WithDefaults = ensureSliceDefaults(`);
                 w.indentBlock(() => {
                     w.line(`[...(args.${f.name} ?? [])],`);
@@ -790,7 +792,7 @@ export const generateProfileClass = (
             const methodName =
                 sliceMethodNames.get(sliceDef) ?? tsQualifiedSliceMethodName(sliceDef.fieldName, sliceDef.sliceName);
             const typeName = tsSliceInputTypeName(tsProfileName, sliceDef.fieldName, sliceDef.sliceName);
-            const matchRef = `${profileClassName}.${sliceDef.sliceName}SliceMatch`;
+            const matchRef = `${profileClassName}.${tsSliceStaticName(sliceDef.sliceName)}SliceMatch`;
             const tsField = tsFieldName(sliceDef.fieldName);
             const fieldAccess = tsGet("this.resource", tsField);
             // Make input optional when there are no required fields (input can be empty object)
@@ -916,7 +918,7 @@ export const generateProfileClass = (
             if (generatedGetMethods.has(getMethodName)) continue;
             generatedGetMethods.add(getMethodName);
             const typeName = tsSliceInputTypeName(tsProfileName, sliceDef.fieldName, sliceDef.sliceName);
-            const matchRef = `${profileClassName}.${sliceDef.sliceName}SliceMatch`;
+            const matchRef = `${profileClassName}.${tsSliceStaticName(sliceDef.sliceName)}SliceMatch`;
             const matchKeys = JSON.stringify(Object.keys(sliceDef.match));
             const tsField = tsFieldName(sliceDef.fieldName);
             const fieldAccess = tsGet("this.resource", tsField);