Add type unions to TypeScript AST

3 files changed, 57 insertions, 1 deletions

diff --git a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/TypescriptWriter.java b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/TypescriptWriter.java
index 50d67bf..7931855 100644
--- a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/TypescriptWriter.java
+++ b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/TypescriptWriter.java
@@ -276,6 +276,10 @@ public class TypescriptWriter implements AutoCloseable {
             case TypescriptRef ref -> {
                 this.writeRef(ref);
             }
+
+            case TypescriptTypeUnion typeUnion -> {
+                this.writeTypeUnion(typeUnion);
+            }
         }
     }
 
@@ -341,6 +345,14 @@ public class TypescriptWriter implements AutoCloseable {
         this.writeIdentifier(ref.name());
     }
 
+    private void writeTypeUnion(TypescriptTypeUnion typeUnion) throws IOException {
+        writeWithSeparator(
+            typeUnion.variants(),
+            this::writeExpression,
+            () -> this.writer.write(" | ")
+        );
+    }
+
     // == Doc comments ==
 
     private void writeDocComment(DocComment docComment) throws IOException {
diff --git a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptExpression.java b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptExpression.java
index 7d443a3..b8e79d3 100644
--- a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptExpression.java
+++ b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptExpression.java
@@ -5,7 +5,7 @@ package org.zwobble.hobgoblin.compiler.output.lang.typescript.ast;
 // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptExpression imports
 // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptExpression imports
 
-public sealed interface TypescriptExpression permits org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptBinaryOperation, org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptCall, org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptConstructedType, org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptFieldAccess, org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptNewCall, org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptNumberLiteral, org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptRef {
+public sealed interface TypescriptExpression permits org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptBinaryOperation, org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptCall, org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptConstructedType, org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptFieldAccess, org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptNewCall, org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptNumberLiteral, org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptRef, org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion {
     public interface Builder {
         public org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptExpression build();
 
diff --git a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptTypeUnion.java b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptTypeUnion.java
new file mode 100644
index 0000000..9b32b6c
--- /dev/null
+++ b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptTypeUnion.java
@@ -0,0 +1,44 @@
+// Generated by hobgoblin.
+
+package org.zwobble.hobgoblin.compiler.output.lang.typescript.ast;
+
+// Custom area start: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion imports
+// Custom area end: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion imports
+
+public record TypescriptTypeUnion(
+    java.util.List<org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptExpression> variants
+) implements org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptExpression {
+    public static org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion.Builder arbitrary() {
+        return new org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion.Builder(java.util.List.of());
+    }
+
+    public record Builder(
+        java.util.List<org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptExpression> variants
+    ) implements org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptExpression.Builder {
+        public org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion build() {
+            return new org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion(variants);
+        }
+
+        public org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion.Builder withVariants(java.util.List<org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptExpression> variants) {
+            return new org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion.Builder(variants);
+        }
+
+        public org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion.Builder addVariant(org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptExpression variant) {
+            var variants = new java.util.ArrayList<org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptExpression>(this.variants);
+            variants.add(variant);
+            return new org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion.Builder(variants);
+        }
+
+        public org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion.Builder addVariant(org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptExpression.Builder variant) {
+            var variants = new java.util.ArrayList<org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptExpression>(this.variants);
+            variants.add(variant.build());
+            return new org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion.Builder(variants);
+        }
+
+        // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion.Builder body
+        // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion.Builder body
+    }
+
+    // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion body
+    // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptTypeUnion body
+}