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[Truffle] - Implements String#clear
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lucasallan committed Dec 22, 2014
1 parent 2090571 commit e9444fff0338590fe7fbc3fcf0d16e2e482b4c0e
Showing with 21 additions and 0 deletions.
  1. +21 −0 core/src/main/java/org/jruby/truffle/nodes/core/
@@ -1249,4 +1249,25 @@ public RubyString capitalize(RubyString string) {


@CoreMethod(names = "clear")
public abstract static class ClearNode extends CoreMethodNode {

public ClearNode(RubyContext context, SourceSection sourceSection) {
super(context, sourceSection);

public ClearNode(ClearNode prev) {

public RubyString clear(RubyString string) {

return string;


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@nirvdrum nirvdrum commented on e9444ff Dec 22, 2014

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FYI, this loses the encoding of the string. We need to improve this across the board, but figured I'd mention it here:

$ JRUBY_OPTS="-X+T" bin/jruby -e 's = "abc".force_encoding("UTF-8"); p; s.clear; p'

The encoding of the cleared string should remain UTF-8.

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