Expression.variant no longer can be a string so all checks for that have been removed.

Author: Janther

src/slang-nodes/ConditionalExpression.ts

@@ -29,16 +29,13 @@ function experimentalTernaries(
   const isNestedAsTrueExpression =
     isNested && grandparent.trueExpression.variant === node;
   const falseExpressionInSameLine =
-    typeof node.falseExpression.variant !== 'string' &&
-    (node.falseExpression.variant.kind === NonterminalKind.TupleExpression ||
-      node.falseExpression.variant.kind ===
-        NonterminalKind.ConditionalExpression);
+    node.falseExpression.variant.kind === NonterminalKind.TupleExpression ||
+    node.falseExpression.variant.kind === NonterminalKind.ConditionalExpression;
 
   // If the `condition` breaks into multiple lines, we add parentheses,
   // unless it already is a `TupleExpression`.
   const operand = path.call(print, 'operand');
   const operandDoc = group([
-    typeof node.operand.variant !== 'string' &&
     node.operand.variant.kind === NonterminalKind.TupleExpression
       ? operand
       : ifBreak(['(', printSeparatedItem(operand), ')'], operand),
@@ -137,13 +134,10 @@ export class ConditionalExpression implements SlangNode {
       // `condition` must be a single `bool` value.
       const operandLoc = this.operand.loc;
       while (
-        typeof this.operand.variant !== 'string' &&
         this.operand.variant.kind === NonterminalKind.TupleExpression &&
         this.operand.variant.items.items.length === 1 &&
-        (typeof this.operand.variant.items.items[0].expression!.variant ===
-          'string' ||
-          this.operand.variant.items.items[0].expression!.variant.kind !==
-            NonterminalKind.ConditionalExpression)
+        this.operand.variant.items.items[0].expression!.variant.kind !==
+          NonterminalKind.ConditionalExpression
       ) {
         this.operand = this.operand.variant.items.items[0].expression!;
       }

src/slang-nodes/ReturnStatement.ts

@@ -17,11 +17,9 @@ function printExpression(
   options: ParserOptions<AstNode>
 ): Doc {
   if (node.expression) {
-    return typeof node.expression.variant !== 'string' &&
-      (node.expression.variant.kind === NonterminalKind.TupleExpression ||
-        (options.experimentalTernaries &&
-          node.expression.variant.kind ===
-            NonterminalKind.ConditionalExpression))
+    return node.expression.variant.kind === NonterminalKind.TupleExpression ||
+      (options.experimentalTernaries &&
+        node.expression.variant.kind === NonterminalKind.ConditionalExpression)
       ? [' ', path.call(print, 'expression')]
       : group(indent([line, path.call(print, 'expression')]));
   }

src/slang-nodes/StateVariableDefinitionValue.ts

@@ -37,8 +37,7 @@ export class StateVariableDefinitionValue implements SlangNode {
     path: AstPath<StateVariableDefinitionValue>,
     print: PrintFunction
   ): Doc {
-    return typeof this.value.variant !== 'string' &&
-      this.value.variant.kind === NonterminalKind.ArrayExpression
+    return this.value.variant.kind === NonterminalKind.ArrayExpression
       ? [' = ', path.call(print, 'value')]
       : group([' =', indent([line, path.call(print, 'value')])]);
   }