Made undefined variable names zero in compile step

app/imports/parser/parseTree/accessor.test.ts

@@ -16,8 +16,8 @@ describe('Accessor Node', function () {
     assert.isEmpty(context.errors);
     assert.equal(
       toString(result),
-      'unknownVariable + 8',
-      'Only known variables should be substituted during compilation step'
+      '8',
+      'Unknown variables should be be substituted with zero during compilation step'
     );
   });
   it('reduces', async function () {
@@ -44,8 +44,8 @@ describe('Accessor Node', function () {
     );
     assert.isEmpty(compileContext.errors, 'compiling unknown variables should not have errors');
     assert.deepEqual(
-      compileResult, { parseType: 'accessor', name: 'unknownVariable', isUndefined: true },
-      'Unknown variables should be marked as inUndefined in compile step'
+      compileResult, { parseType: 'constant', value: 0, valueType: 'number', isUndefined: true },
+      'Unknown variables should be zero and marked as inUndefined in compile step'
     );
 
     // At reduce step

app/imports/parser/parseTree/accessor.ts

@@ -87,6 +87,15 @@ const accessor: AccessorFactory = {
       };
     }
     if (valueType === 'undefined') {
+      // Replace unknown variables with zero marked isUndefined
+      return {
+        result: constant.create({
+          value: 0,
+          isUndefined: true,
+        }),
+        context
+      };
+      // Old Behavior
       // We are only at compile, if it isn't defined in the scope, return a copy of the accessor
       return {
         result: accessor.create({

app/imports/parser/parseTree/array.ts

@@ -1,5 +1,5 @@
 import { serialMap } from '/imports/api/utility/asyncMap';
-import constant from '/imports/parser/parseTree/constant';
+import constant, { ConstantValueType } from '/imports/parser/parseTree/constant';
 import ParseNode from '/imports/parser/parseTree/ParseNode';
 import ResolveFunction from '/imports/parser/types/ResolveFunction';
 import MapFunction from '/imports/parser/types/MapFunction';
@@ -29,17 +29,15 @@ const arrayFactory: ArrayFactory = {
   },
   fromConstantArray(constantArray) {
     const values = constantArray.map(value => {
-      const valueType = typeof value;
       if (
-        valueType === 'string' ||
-        valueType === 'number' ||
-        valueType === 'boolean' ||
-        valueType === 'undefined'
+        typeof value === 'string' ||
+        typeof value === 'number' ||
+        typeof value === 'boolean'
       ) {
         return constant.create({ value });
       } else {
         // Gracefully create an empty constant in the array for unsupported types
-        return constant.create({ value: undefined });
+        return constant.create({ value: 0, isUndefined: true });
       }
     });
     return arrayFactory.create({ values });

app/imports/parser/parseTree/call.test.ts

@@ -9,7 +9,7 @@ describe('Call Node', function () {
     const callNode = parse('min( unknownVariable, 1 + 2, 3d30 )');
     const { result, context } = await resolve('compile', callNode, undefined, undefined, inputProviderForTests);
     assert.isEmpty(context.errors)
-    assert.equal(toString(result), 'min(unknownVariable, 3, 3d30)');
+    assert.equal(toString(result), 'min(0, 3, 3d30)');
   });
   it('reduces', async function () {
     const callNode = parse('min( unknownVariable, 1 + 2, 3d30 )');

app/package.json

@@ -9,13 +9,13 @@
   },
   "author": "Thaum Rystra",
   "scripts": {
-    "run": "meteor",
+    "serve": "meteor run --raw-logs",
     "debug": "meteor --inspect",
     "bundle-viz": "meteor --extra-packages bundle-visualizer --production",
     "lint": "eslint .",
-    "test": "meteor test --driver-package meteortesting:mocha --port 3001",
-    "test:coverage": "COVERAGE=1 COVERAGE_OUT_LCOVONLY=1 COVERAGE_OUT_REMAP=1 COVERAGE_APP_FOLDER=$PWD/ meteor test --once --driver-package meteortesting:mocha",
-    "test:watch:coverage": "COVERAGE=1 COVERAGE_OUT_LCOVONLY=1 COVERAGE_OUT_REMAP=1 COVERAGE_APP_FOLDER=$PWD/ TEST_WATCH=1 meteor test --driver-package meteortesting:mocha",
+    "test": "meteor test --driver-package meteortesting:mocha --port 3001 --raw-logs",
+    "test:coverage": "COVERAGE=1 COVERAGE_OUT_LCOVONLY=1 COVERAGE_OUT_REMAP=1 COVERAGE_APP_FOLDER=$PWD/ meteor test --once --raw-logs --driver-package meteortesting:mocha",
+    "test:watch:coverage": "COVERAGE=1 COVERAGE_OUT_LCOVONLY=1 COVERAGE_OUT_REMAP=1 COVERAGE_APP_FOLDER=$PWD/ TEST_WATCH=1 meteor test --raw-logs --driver-package meteortesting:mocha",
     "build": "meteor build ../build --architecture os.linux.x86_64"
   },
   "engines": {