Check for long strings

1 files changed, 15 insertions, 1 deletions

diff --git a/src/main/java/org/zwobble/hobgoblin/compiler/output/generators/javatransient0/JavaTransient0Generator.java b/src/main/java/org/zwobble/hobgoblin/compiler/output/generators/javatransient0/JavaTransient0Generator.java
index 2dff24b..78cbca4 100644
--- a/src/main/java/org/zwobble/hobgoblin/compiler/output/generators/javatransient0/JavaTransient0Generator.java
+++ b/src/main/java/org/zwobble/hobgoblin/compiler/output/generators/javatransient0/JavaTransient0Generator.java
@@ -362,13 +362,27 @@ public class JavaTransient0Generator implements Generator {
             NativeTypes.INT_64
         ));
 
+        statements.add(new JavaIfStatement(
+            new JavaBinaryOperation(
+                JavaBinaryOperator.GREATER_THAN,
+                new JavaRef(bytesLengthVariableName),
+                new JavaStaticFieldAccess(JavaTypeRef.INT_BOXED, JavaIdentifier.of("MAX_VALUE"))
+            ),
+            new JavaBlock(List.of(
+                new JavaThrowStatement(new JavaNewExpression(
+                    JavaTypeRef.IO_EXCEPTION,
+                    List.of(new JavaStringLiteral("Strings longer than Integer.MAX_VALUE are not supported"))
+                ))
+            )),
+            new JavaBlock(List.of())
+        ));
+
         statements.add(new JavaLocalVariableDeclaration(
             Optional.empty(),
             bytesVariableName,
             Optional.of(new JavaMethodCall(
                 new JavaRef(INPUT_STREAM_NAME),
                 JavaIdentifier.of("readNBytes"),
-                // TODO: handle very long strings
                 List.of(new JavaCast(JavaTypeRef.INT, new JavaRef(bytesLengthVariableName)))
             ))
         ));