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Posted to notifications@groovy.apache.org by "Paul King (JIRA)" <ji...@apache.org> on 2018/12/13 10:10:00 UTC
[jira] [Commented] (GROOVY-8831) Add instance methods from `String`
to `GString`
[ https://issues.apache.org/jira/browse/GROOVY-8831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16720005#comment-16720005 ]
Paul King commented on GROOVY-8831:
-----------------------------------
Status? Is this complete or did we decide against this?
> Add instance methods from `String` to `GString`
> ------------------------------------------------
>
> Key: GROOVY-8831
> URL: https://issues.apache.org/jira/browse/GROOVY-8831
> Project: Groovy
> Issue Type: Improvement
> Reporter: Daniel Sun
> Assignee: Daniel Sun
> Priority: Major
> Fix For: 3.0.0-alpha-4
>
>
> The reason why we add {{String}} instance methods is to improve performance to some extent and reduce the size of class file:
> {code:java}
> @groovy.transform.CompileStatic
> def y() {
> "abc${'123'}def".toUpperCase()
> }
> {code}
> *Original:*
> {code:java}
> NEW org/codehaus/groovy/runtime/GStringImpl
> DUP
> ICONST_1
> ANEWARRAY java/lang/Object
> DUP
> ICONST_0
> LDC "123"
> AASTORE
> ICONST_2
> ANEWARRAY java/lang/String
> DUP
> ICONST_0
> LDC "abc"
> AASTORE
> DUP
> ICONST_1
> LDC "def"
> AASTORE
> INVOKESPECIAL org/codehaus/groovy/runtime/GStringImpl.<init> ([Ljava/lang/Object;[Ljava/lang/String;)V
> INVOKESTATIC org/codehaus/groovy/runtime/typehandling/ShortTypeHandling.castToString (Ljava/lang/Object;)Ljava/lang/String;
> CHECKCAST java/lang/String
> INVOKEVIRTUAL java/lang/String.toUpperCase ()Ljava/lang/String;
> ARETURN
> {code}
> *After change:*
> {code:java}
> NEW org/codehaus/groovy/runtime/GStringImpl
> DUP
> ICONST_1
> ANEWARRAY java/lang/Object
> DUP
> ICONST_0
> LDC "123"
> AASTORE
> ICONST_2
> ANEWARRAY java/lang/String
> DUP
> ICONST_0
> LDC "abc"
> AASTORE
> DUP
> ICONST_1
> LDC "def"
> AASTORE
> INVOKESPECIAL org/codehaus/groovy/runtime/GStringImpl.<init> ([Ljava/lang/Object;[Ljava/lang/String;)V
> INVOKEVIRTUAL groovy/lang/GString.toUpperCase ()Ljava/lang/String;
> ARETURN
> {code}
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