fix: Add memory & table for esm binding's exports (#2344)

Author: MaxGraey

src/bindings/js.ts

@@ -864,6 +864,12 @@ export class JSBuilder extends ExportsWalker {
 
     if (this.esm) {
       sb.push("export const {\n  ");
+      if (this.program.options.exportMemory) {
+        sb.push("memory,\n  ");
+      }
+      if (this.program.options.exportTable) {
+        sb.push("table,\n  ");
+      }
       for (let i = 0, k = exports.length; i < k; ++i) {
         if (i > 0) sb.push(",\n  ");
         sb.push(exports[i]);

src/bindings/tsd.ts

@@ -186,6 +186,18 @@ export class TSDBuilder extends ExportsWalker {
       sb.push("declare namespace __AdaptedExports {\n");
       ++this.indentLevel;
     }
+    if (this.program.options.exportMemory) {
+      indent(sb, this.indentLevel);
+      sb.push("/** Exported memory */\n");
+      indent(sb, this.indentLevel);
+      sb.push(`export ${this.esm ? "declare " : ""}const memory: WebAssembly.Memory;\n`);
+    }
+    if (this.program.options.exportTable) {
+      indent(sb, this.indentLevel);
+      sb.push("/** Exported table */\n");
+      indent(sb, this.indentLevel);
+      sb.push(`export ${this.esm ? "declare " : ""}const table: WebAssembly.Table;\n`);
+    }
     this.walk();
     if (!this.esm) {
       --this.indentLevel;

tests/compiler/bindings/esm.debug.d.ts

@@ -1,3 +1,5 @@
+/** Exported memory */
+export declare const memory: WebAssembly.Memory;
 /** bindings/esm/plainGlobal */
 export declare const plainGlobal: {
   /** @type `i32` */

tests/compiler/bindings/esm.debug.js

@@ -360,6 +360,7 @@ async function instantiate(module, imports = {}) {
   return adaptedExports;
 }
 export const {
+  memory,
   plainGlobal,
   plainMutableGlobal,
   stringGlobal,

tests/compiler/bindings/esm.release.d.ts

@@ -1,3 +1,5 @@
+/** Exported memory */
+export declare const memory: WebAssembly.Memory;
 /** bindings/esm/plainGlobal */
 export declare const plainGlobal: {
   /** @type `i32` */

tests/compiler/bindings/esm.release.js

@@ -360,6 +360,7 @@ async function instantiate(module, imports = {}) {
   return adaptedExports;
 }
 export const {
+  memory,
   plainGlobal,
   plainMutableGlobal,
   stringGlobal,

tests/compiler/bindings/raw.debug.d.ts

@@ -1,4 +1,6 @@
 declare namespace __AdaptedExports {
+  /** Exported memory */
+  export const memory: WebAssembly.Memory;
   /** bindings/esm/plainGlobal */
   export const plainGlobal: {
     /** @type `i32` */

tests/compiler/bindings/raw.release.d.ts

@@ -1,4 +1,6 @@
 declare namespace __AdaptedExports {
+  /** Exported memory */
+  export const memory: WebAssembly.Memory;
   /** bindings/esm/plainGlobal */
   export const plainGlobal: {
     /** @type `i32` */