Support the java target. (#2)

Fix creating utf16 from an array.

.haxerc

@@ -1,4 +1,4 @@
 {
-  "version": "0826bf6",
+  "version": "92c7833",
   "resolveLibs": "scoped"
 }

build.java.hxml

@@ -0,0 +1,13 @@
+-lib hx3compat
+
+-dce full
+-D eval-stack
+-D analyzer-optimize
+
+-main test.Main
+
+--each
+
+#-D jvm
+-java test/test_java
+-cmd java -jar test/test_java/Main.jar

haxe_libraries/hxjava.hxml

@@ -0,0 +1,5 @@
+-D hxjava=3.2.0
+# @install: lix --silent download "haxelib:/hxjava#3.2.0" into hxjava/3.2.0/haxelib
+# @run: haxelib run-dir hxjava ${HAXE_LIBCACHE}/hxjava/3.2.0/haxelib
+-cp ${HAXE_LIBCACHE}/hxjava/3.2.0/haxelib/
+-java-lib lib/hxjava-std.jar

test/TestUtf8.hx

@@ -11,7 +11,7 @@ class TestUtf8 extends haxe.unit.TestCase {
 		var u = Utf8.fromString("𩸽あëa");
 		// I expect having different indexes for different platforms is wrong.
 		var index = 
-		#if (neko || js || python || hl)
+		#if (neko || js || python || hl || java)
 		[0, 4, 7, 9];
 		#else
 		[0, 1, 2, 3];
@@ -26,7 +26,7 @@ class TestUtf8 extends haxe.unit.TestCase {
 		var codepoints = ["𩸽".code, "あ".code, "ë".code, "a".code];
 		var u = Utf8.fromCodePoints(codepoints);
 		var index = 
-		#if (neko || js || python || hl)
+		#if (neko || js || python || hl || java)
 		[0, 4, 7, 9];
 		#else
 		[0, 1, 2, 3];

unifill/Utf16.hx

@@ -29,7 +29,15 @@ abstract Utf16 (StringU16) {
 	}
 
 	public static inline function fromArray(a : Array<Int>) : Utf16 {
-		return new Utf16(StringU16.fromArray(a));
+		#if java
+		var na:java.NativeArray<java.types.Char16> = new java.NativeArray(a.length);
+		for (i in 0...a.length) na[i] = a[i];
+		var s = java.NativeString.valueOf(na);
+		var r = new Utf16(StringU16.fromString(s));
+		#else
+		var r = new Utf16(StringU16.fromArray(a));
+		#end
+		return r;
 	}
 
 	public static inline function encodeWith(f : Int -> Void, c : Int) : Void {
@@ -207,7 +215,7 @@ private class Utf16Impl {
 
 }
 
-#if (js || hl)
+#if (js || hl || java)
 @:forward private abstract StringU16Buffer(BytesBuffer) {
 	public inline function new() this = new BytesBuffer();
 

unifill/UtfX.hx

@@ -4,7 +4,7 @@ package unifill;
 	typedef UtfX = Utf8;
 #elseif (utf32 || python)
 	typedef UtfX = Utf32;
-#elseif (utf16 || hl || js)
+#elseif (utf16 || hl || js || java)
 	typedef UtfX = Utf16;
 #else
 	typedef UtfX = Utf16;