Fix #1108 - add support for referencedFunction to UndefinedFunction

src/Psalm/Config/FileFilter.php

@@ -324,8 +324,14 @@ class FileFilter
      */
     public function allowsMethod($method_id)
     {
-        $method_stub = '*::' . explode('::', $method_id)[1];
+        if (preg_match('/^[^:]+::[^:]+$/', $method_id)) {
-        return in_array($method_id, $this->method_ids) || in_array($method_stub, $this->method_ids);
+            $method_stub = '*::' . explode('::', $method_id)[1];
+
+            if (in_array($method_stub, $this->method_ids)) {
+                return true;
+            }
+        }
+        return in_array($method_id, $this->method_ids);
     }
 
     /**

src/Psalm/Internal/Analyzer/Statements/Expression/CallAnalyzer.php

@@ -2118,7 +2118,8 @@ class CallAnalyzer
                 if (IssueBuffer::accepts(
                     new UndefinedFunction(
                         'Function ' . $cased_function_id . ' does not exist',
-                        $code_location
+                        $code_location,
+                        $function_id
                     ),
                     $statements_analyzer->getSuppressedIssues()
                 )) {

src/Psalm/Issue/UndefinedFunction.php

@@ -1,6 +1,6 @@
 <?php
 namespace Psalm\Issue;
 
-class UndefinedFunction extends CodeIssue
+class UndefinedFunction extends MethodIssue
 {
 }

tests/ConfigTest.php

@@ -319,6 +319,11 @@ class ConfigTest extends TestCase
                                 <referencedMethod name="*::find2" />
                             </errorLevel>
                         </UndefinedMethod>
+                        <UndefinedFunction>
+                            <errorLevel type="suppress">
+                                <referencedFunction name="fooBar" />
+                            </errorLevel>
+                        </UndefinedFunction>
                         <UndefinedPropertyFetch>
                             <errorLevel type="suppress">
                                 <referencedProperty name="Psalm\Bodger::$find3" />
@@ -402,6 +407,22 @@ class ConfigTest extends TestCase
                 'Psalm\Bodger::$find4'
             )
         );
+
+        $this->assertSame(
+            'suppress',
+            $config->getReportingLevelForMethod(
+                'UndefinedFunction',
+                'fooBar'
+            )
+        );
+
+        $this->assertSame(
+            'suppress',
+            $config->getReportingLevelForMethod(
+                'UndefinedFunction',
+                'foobar'
+            )
+        );
     }
 
     /**