chore: Rename anyref to externref to match proposal change (#1319)

BREAKING CHANGE: The `anyref` type has been renamed to `externref` and support for externref `null` values has been temporarily disabled.

.github/workflows/test.yml

@@ -115,8 +115,7 @@ jobs:
     - uses: dcodeIO/setup-node-nvm@master
       with:
         node-mirror: https://nodejs.org/download/v8-canary/
-        # FIXME: newer node-v8 builds are currently broken
-        node-version: "14.0.0-v8-canary201911242015a12d82"
+        node-version: "15.0.0-v8-canary202007077c53168ead"
     - name: Install dependencies
       run: npm ci --no-audit
     - name: Clean distribution files

package.json

@@ -21,7 +21,7 @@
     "url": "https://github.com/AssemblyScript/assemblyscript/issues"
   },
   "dependencies": {
-    "binaryen": "93.0.0-nightly.20200609",
+    "binaryen": "93.0.0-nightly.20200611",
     "long": "^4.0.0",
     "source-map-support": "^0.5.19",
     "ts-node": "^6.2.0"

src/builtins.ts

@@ -971,7 +971,7 @@ function builtin_nameof(ctx: BuiltinContext): ExpressionRef {
       if (signatureReference) {
         value = "Function";
       } else {
-        value = "Anyref";
+        value = "Externref";
       }
     }
   } else {
@@ -990,7 +990,7 @@ function builtin_nameof(ctx: BuiltinContext): ExpressionRef {
       case TypeKind.ISIZE: { value = "isize"; break; }
       case TypeKind.USIZE: { value = "usize"; break; }
       case TypeKind.V128: { value = "v128"; break; }
-      case TypeKind.ANYREF: { value = "anyref"; break; }
+      case TypeKind.EXTERNREF: { value = "externref"; break; }
       default: assert(false);
       case TypeKind.VOID: { value = "void"; break; }
     }
@@ -2440,7 +2440,8 @@ function builtin_select(ctx: BuiltinContext): ExpressionRef {
   var arg1 = compiler.compileExpression(operands[1], type, Constraints.CONV_IMPLICIT);
   var arg2 = compiler.makeIsTrueish(
     compiler.compileExpression(operands[2], Type.bool),
-    compiler.currentType // ^
+    compiler.currentType, // ^
+    operands[2]
   );
   compiler.currentType = type;
   return module.select(arg0, arg1, arg2);
@@ -2577,9 +2578,9 @@ function builtin_memory_data(ctx: BuiltinContext): ExpressionRef {
     let exprs = new Array<ExpressionRef>(numElements);
     let isStatic = true;
     for (let i = 0; i < numElements; ++i) {
-      let expression = expressions[i];
-      if (expression) {
-        let expr = compiler.compileExpression(expression, elementType,
+      let elementExpression = expressions[i];
+      if (elementExpression) {
+        let expr = compiler.compileExpression(elementExpression, elementType,
           Constraints.CONV_IMPLICIT | Constraints.WILL_RETAIN
         );
         let precomp = module.runExpression(expr, ExpressionRunnerFlags.PreserveSideeffects);
@@ -2590,7 +2591,7 @@ function builtin_memory_data(ctx: BuiltinContext): ExpressionRef {
         }
         exprs[i] = expr;
       } else {
-        exprs[i] = compiler.makeZero(elementType);
+        exprs[i] = compiler.makeZero(elementType, valuesOperand);
       }
     }
     if (!isStatic) {

src/common.ts

@@ -123,7 +123,7 @@ export namespace CommonNames {
   export const f32 = "f32";
   export const f64 = "f64";
   export const v128 = "v128";
-  export const anyref = "anyref";
+  export const externref = "externref";
   export const i8x16 = "i8x16";
   export const u8x16 = "u8x16";
   export const i16x8 = "i16x8";
@@ -185,7 +185,7 @@ export namespace CommonNames {
   export const F32 = "F32";
   export const F64 = "F64";
   export const V128 = "V128";
-  export const Anyref = "Anyref";
+  export const Externref = "Externref";
   export const String = "String";
   export const Array = "Array";
   export const StaticArray = "StaticArray";