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https://issues.apache.org/jira/browse/GROOVY-7473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Milles updated GROOVY-7473:
--------------------------------
Component/s: Compiler
> inefficient code generation
> ---------------------------
>
> Key: GROOVY-7473
> URL: https://issues.apache.org/jira/browse/GROOVY-7473
> Project: Groovy
> Issue Type: Bug
> Components: bytecode, Compiler, Static compilation
> Affects Versions: 2.4.3
> Reporter: Laurenz Tontsch
> Assignee: Eric Milles
> Priority: Major
> Labels: bytecode
> Fix For: 4.0.0-rc-1
>
>
> Groovy 2.4.3 generates not the most efficient byte code of a simple statement
> like "in".
> e.g. The following statement:
> {code:groovy}
> if object.stringProperty in ["State1", "State2", "State3"]
> {code}
> gets complied in:
> {code:java}
> if
> (DefaultTypeTransformation.booleanUnbox((ScriptBytecodeAdapter.createList(new
> Object[] { "State1", "State2", "State3" }) == null ? 1 : 0) != 0 ?
> Boolean.valueOf(object.getStringProperty() == null) :
> Boolean.valueOf(DefaultGroovyMethods.isCase(ScriptBytecodeAdapter.createList(new
> Object[] { "State1", "State2 ", "State3" }), object. getStringProperty ()))))
> {code}
> instead of this a more efficient construct would be the usage of an static
> list
> e.g.
> {code:java}
> static List<String> l1;
> static {
> l1 = new LinkedList<String>();
> l1.add("State1");
> l1.add("State2");
> l1.add("State3");
> }
> if (DefaultTypeTransformation.booleanUnbox((l1 == null ? 1 : 0) != 0 ?
> Boolean.valueOf(object.getStringProperty() == null) :
> Boolean.valueOf(DefaultGroovyMethods.isCase(l1, object. getStringProperty
> ()))))
> {code}
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