Arity-split String#encode!

This led to a few other things getting split, plus a lambda form that avoids the temporary string carrier array.
headius · Dec 21, 2023 · 7759bcd · 7759bcd
1 parent 1fd1f73
commit 7759bcd
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Showing 2 changed files with 204 additions and 94 deletions.
diff --git a/core/src/main/java/org/jruby/RubyString.java b/core/src/main/java/org/jruby/RubyString.java
@@ -6596,39 +6596,43 @@ public IRubyObject encoding(ThreadContext context) {
         return context.runtime.getEncodingService().getEncoding(value.getEncoding());
     }
 
-    // TODO: re-split this
-    public IRubyObject encode_bang(ThreadContext context, IRubyObject arg0) {
-        return encode_bang(context, new IRubyObject[]{arg0});
-    }
+    @JRubyMethod(name = "encode!")
+    public IRubyObject encode_bang(ThreadContext context) {
+        modify19();
 
-    public IRubyObject encode_bang(ThreadContext context, IRubyObject arg0, IRubyObject arg1) {
-        return encode_bang(context, new IRubyObject[]{arg0,arg1});
+        return EncodingUtils.strTranscode(context, this, RubyString::updateFromTranscode);
     }
 
-    public IRubyObject encode_bang(ThreadContext context, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2) {
-        return encode_bang(context, new IRubyObject[]{arg0,arg1,arg2});
+    @JRubyMethod(name = "encode!")
+    public IRubyObject encode_bang(ThreadContext context, IRubyObject arg0) {
+        modify19();
+
+        return EncodingUtils.strTranscode(context, arg0, this, RubyString::updateFromTranscode);
     }
 
-    @JRubyMethod(name = "encode!", optional = 3, checkArity = false)
-    public IRubyObject encode_bang(ThreadContext context, IRubyObject[] args) {
-        Arity.checkArgumentCount(context, args, 0, 3);
+    @JRubyMethod(name = "encode!")
+    public IRubyObject encode_bang(ThreadContext context, IRubyObject arg0, IRubyObject arg1) {
+        modify19();
 
-        IRubyObject[] newstr_p;
-        Encoding encindex;
+        return EncodingUtils.strTranscode(context, arg0, arg1, this, RubyString::updateFromTranscode);
+    }
 
+    @JRubyMethod(name = "encode!")
+    public IRubyObject encode_bang(ThreadContext context, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2) {
         modify19();
 
-        newstr_p = new IRubyObject[]{this};
-        encindex = EncodingUtils.strTranscode(context, args, newstr_p);
+        return EncodingUtils.strTranscode(context, arg0, arg1, arg2, this, RubyString::updateFromTranscode);
+    }
 
-        if (encindex == null) return this;
-        if (newstr_p[0] == this) {
-            setEncoding(encindex);
-            return this;
+    private static RubyString updateFromTranscode(ThreadContext context, RubyString self, Encoding encindex, RubyString newstr) {
+        if (encindex == null) return self;
+        if (newstr == self) {
+            self.setEncoding(encindex);
+            return self;
         }
-        replace(newstr_p[0]);
-        setEncoding(encindex);
-        return this;
+        self.replace(newstr);
+        self.setEncoding(encindex);
+        return self;
     }
 
     @JRubyMethod
@@ -7244,4 +7248,13 @@ public RubyArray unpack(IRubyObject obj) {
         return Pack.unpack(getRuntime(), this.value, stringValue(obj).value);
     }
 
+    @Deprecated
+    public IRubyObject encode_bang(ThreadContext context, IRubyObject[] args) {
+        Arity.checkArgumentCount(context, args, 0, 2);
+
+        modify19();
+
+        return EncodingUtils.strTranscode(context, args, this, RubyString::updateFromTranscode);
+    }
+
 }