diff --git a/src/codegen/types/objects/class.ts b/src/codegen/types/objects/class.ts
index e46ec41d..f2df64d7 100644
--- a/src/codegen/types/objects/class.ts
+++ b/src/codegen/types/objects/class.ts
@@ -79,8 +79,7 @@ export class ClassGenerator {
       }
     }
     for (let i = 0; i < classNode.fields.length; i++) {
-      // Static fields are globals, not part of the instance struct
-      if (classNode.fields[i].isStatic) continue;
+      if ((classNode.fields[i] as ClassField).isStatic) continue;
       allFields.push(classNode.fields[i]);
     }
     return allFields;
@@ -524,7 +523,7 @@ export class ClassGenerator {
 
     // Emit static fields as LLVM globals
     for (let fi = 0; fi < classNode.fields.length; fi++) {
-      const field = classNode.fields[fi];
+      const field = classNode.fields[fi] as ClassField;
       if (!field || !field.isStatic) continue;
       const globalName = `@${this.ctx.mangleUserName(className)}_${field.name}`;
       const llvmType = this.fieldToLlvmType(field);
@@ -686,7 +685,7 @@ export class ClassGenerator {
     }
 
     for (let fi = 0; fi < fields.length; fi++) {
-      const classField = fields[fi];
+      const classField = fields[fi] as ClassField;
       if (!classField) continue;
       if (!classField.initializer) continue;
       const initType = classField.initializer.type;
@@ -809,7 +808,7 @@ export class ClassGenerator {
       this.ctx.setThisPointer(objPtr);
       this.ctx.setCurrentClassName(className);
       for (let fi = 0; fi < classFields.length; fi++) {
-        const cf = classFields[fi];
+        const cf = classFields[fi] as ClassField;
         if (!cf) continue;
         if (!cf.initializer) continue;
         const initType = cf.initializer.type;
diff --git a/src/parser-native/transformer.ts b/src/parser-native/transformer.ts
index df1a2cbf..a3469d05 100644
--- a/src/parser-native/transformer.ts
+++ b/src/parser-native/transformer.ts
@@ -2796,7 +2796,13 @@ function transformClassDeclaration(node: TreeSitterNode): ClassNode | null {
                 }
               }
               if (alreadyExists === false) {
-                const newField: ClassField = { name: propName, fieldType, tsType };
+                const newField: ClassField = {
+                  name: propName,
+                  fieldType,
+                  tsType,
+                  initializer: undefined,
+                  isStatic: false,
+                };
                 fields.push(newField);
               }
             }
@@ -2872,11 +2878,8 @@ function transformClassField(node: TreeSitterNode): ClassField | null {
     }
   }
 
-  const result: ClassField = { name, fieldType, tsType };
-  if (isStatic) result.isStatic = true;
-  if (valueNode) {
-    result.initializer = transformExpression(valueNode);
-  }
+  const initializer = valueNode ? transformExpression(valueNode) : undefined;
+  const result: ClassField = { name, fieldType, tsType, initializer, isStatic };
   return result;
 }
 
diff --git a/src/parser-ts/handlers/declarations.ts b/src/parser-ts/handlers/declarations.ts
index d7eac1bb..a1dbf83a 100644
--- a/src/parser-ts/handlers/declarations.ts
+++ b/src/parser-ts/handlers/declarations.ts
@@ -190,14 +190,8 @@ function transformPropertyDeclaration(
   }
 
   const isStatic = node.modifiers?.some((m) => m.kind === ts.SyntaxKind.StaticKeyword) ?? false;
-  const result: ClassField = { name, fieldType, tsType };
-  if (node.initializer) {
-    result.initializer = transformExpression(node.initializer, checker);
-  }
-  if (isStatic) {
-    result.isStatic = true;
-  }
-  return result;
+  const initializer = node.initializer ? transformExpression(node.initializer, checker) : undefined;
+  return { name, fieldType, tsType, initializer, isStatic };
 }
 
 function transformMethodDeclaration(
@@ -298,7 +292,13 @@ function transformConstructorDeclaration(
           tsType = typeStr;
         }
       }
-      parameterProperties.push({ name, fieldType, tsType });
+      parameterProperties.push({
+        name,
+        fieldType,
+        tsType,
+        initializer: undefined,
+        isStatic: false,
+      });
     }
   }
 
diff --git a/tests/fixtures/arrays/boolean-array-basic.ts b/tests/fixtures/arrays/boolean-array-basic.ts
new file mode 100644
index 00000000..a816dc38
--- /dev/null
+++ b/tests/fixtures/arrays/boolean-array-basic.ts
@@ -0,0 +1,4 @@
+const flags: boolean[] = [true, false, true];
+if (flags[0] === true && flags[1] === false && flags[2] === true) {
+  console.log("TEST_PASSED");
+}
diff --git a/tests/fixtures/arrays/boolean-array-index-assign.ts b/tests/fixtures/arrays/boolean-array-index-assign.ts
new file mode 100644
index 00000000..1a0b455e
--- /dev/null
+++ b/tests/fixtures/arrays/boolean-array-index-assign.ts
@@ -0,0 +1,6 @@
+const flags: boolean[] = [false, false, false, false];
+flags[0] = true;
+flags[2] = true;
+if (flags[0] === true && flags[1] === false && flags[2] === true && flags[3] === false) {
+  console.log("TEST_PASSED");
+}
diff --git a/tests/fixtures/arrays/boolean-array-push.ts b/tests/fixtures/arrays/boolean-array-push.ts
new file mode 100644
index 00000000..5d9e7b5b
--- /dev/null
+++ b/tests/fixtures/arrays/boolean-array-push.ts
@@ -0,0 +1,7 @@
+const flags: boolean[] = [];
+flags.push(true);
+flags.push(false);
+flags.push(true);
+if (flags.length === 3 && flags[0] === true && flags[1] === false) {
+  console.log("TEST_PASSED");
+}
diff --git a/tests/fixtures/arrays/boolean-array-sieve.ts b/tests/fixtures/arrays/boolean-array-sieve.ts
new file mode 100644
index 00000000..4d1fb6f6
--- /dev/null
+++ b/tests/fixtures/arrays/boolean-array-sieve.ts
@@ -0,0 +1,39 @@
+const limit = 50;
+const sieve: boolean[] = [];
+let i = 0;
+while (i < limit) {
+  sieve.push(true);
+  i = i + 1;
+}
+sieve[0] = false;
+sieve[1] = false;
+
+i = 2;
+while (i * i < limit) {
+  if (sieve[i]) {
+    let j = i * i;
+    while (j < limit) {
+      sieve[j] = false;
+      j = j + i;
+    }
+  }
+  i = i + 1;
+}
+
+let primes = "";
+i = 2;
+while (i < limit) {
+  if (sieve[i]) {
+    if (primes.length > 0) {
+      primes = primes + ",";
+    }
+    primes = primes + i.toString();
+  }
+  i = i + 1;
+}
+
+if (primes === "2,3,5,7,11,13,17,19,23,29,31,37,41,43,47") {
+  console.log("TEST_PASSED");
+} else {
+  console.log("FAIL: " + primes);
+}
diff --git a/tests/fixtures/classes/class-field-init.ts b/tests/fixtures/classes/class-field-init.ts
index 049dea45..8e390e1d 100644
--- a/tests/fixtures/classes/class-field-init.ts
+++ b/tests/fixtures/classes/class-field-init.ts
@@ -1,5 +1,3 @@
-// @test-skip
-// native compiler's tree-sitter parser doesn't populate field initializers yet
 class Config {
   maxRetries: number = 5;
   name: string = "default";
diff --git a/tests/fixtures/control-flow/switch-string-toplevel.ts b/tests/fixtures/control-flow/switch-string-toplevel.ts
index 2abbf22e..3490ec9f 100644
--- a/tests/fixtures/control-flow/switch-string-toplevel.ts
+++ b/tests/fixtures/control-flow/switch-string-toplevel.ts
@@ -1,4 +1,5 @@
 // @test-skip
+// native switch string matching fails in self-hosted stages on linux
 const s = "b";
 switch (s) {
   case "a":