[jboss-jira] [JBoss JIRA] (DROOLS-2509) Executable model isn't generated correctly for from clause in the form func(x)

[Mario Fusco (JIRA)]

Mario Fusco created DROOLS-2509:
-----------------------------------

             Summary: Executable model isn't generated correctly for from clause in the form func(x)
                 Key: DROOLS-2509
                 URL: https://issues.jboss.org/browse/DROOLS-2509
             Project: Drools
          Issue Type: Bug
          Components: core engine
            Reporter: Mario Fusco
            Assignee: Luca Molteni


Executable model is generated correctly when the from clause is in the form x.func() but not when it is func(x). See the reproducer below

{code}
    public static Integer getLength(String s) {
        return s.length();
    }

    @Test
    public void testFromExternalFunction() {
        final String str =
                "import " + FromTest.class.getCanonicalName() + ";\n" +
                "global java.util.List list\n" +
                "\n" +
                "rule R when\n" +
                "  $s : String()\n" +
                "  $i : Integer( this > 10 ) from FromTest.getLength($s)\n" +
                "then\n" +
                "  list.add( \"received long message: \" + $s);\n" +
                "end\n";

        KieSession ksession = getKieSession( str );

        final List<String> list = new ArrayList<>();
        ksession.setGlobal( "list", list );

        ksession.insert("Hello World!");
        ksession.fireAllRules();

        Assertions.assertThat(list).containsExactlyInAnyOrder("received long message: Hello World!");
    }
{code}



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