[php] Fix handling of multi-module cases

Look up unknown base classes using SWIG_MangledTypeQueryModule().

Revert to using SWIG_TypeCheck() instead of SWIG_TypeCheckStruct()
as the latter doesn't seem to work for this case (at least for PHP
right now).

Add mod_runme.php as a regression test for this.

Adjust the PHP test harness not to set up reflection for the module
unless it's actually needed for a testcase.  Currently the approach
to find the module name doesn't work for multi-module testcases.

See #2126

Examples/Makefile.in

@@ -1215,6 +1215,9 @@ php_cpp: $(SRCDIR_SRCS)
 php_run:
 	$(RUNTOOL) $(PHP) -n -d extension_dir=. -d extension=$(PHP_EXTENSION) -d display_errors=stderr -r 'set_error_handler(function($$n,$$s,$$f,$$l){if($$f!==Null){print$$f;if($$l!==Null)print":$$l";print": ";}print"$$s\n";exit(1);});if(strlen($$argv[1]))include($$argv[1]);' '$(PHP_SCRIPT)' $(RUNPIPE)
 
+php_run_multi:
+	$(RUNTOOL) $(PHP) -n -d extension_dir=. `while read e ; do echo ' -d extension=$(TARGETPREFIX)'"$$e"'@PHP_SO@' ; done < $(PHP_EXTENSION_LIST)` -d display_errors=stderr -r 'set_error_handler(function($$n,$$s,$$f,$$l){if($$f!==Null){print$$f;if($$l!==Null)print":$$l";print": ";}print"$$s\n";exit(1);});if(strlen($$argv[1]))include($$argv[1]);' '$(PHP_SCRIPT)' $(RUNPIPE)
+
 # -----------------------------------------------------------------
 # Version display
 # -----------------------------------------------------------------

Examples/test-suite/php/Makefile.in

@@ -57,10 +57,18 @@ missingtests: missingcpptests missingctests
 	+$(swig_and_compile_c)
 	+$(run_testcase)
 
+# Trying to load the modules for imports.multicpptest fails with:
+#
+# Warning: Function registration failed - duplicate name - global_test in Unknown on line 0
+# Segmentation fault
+#
+# This was previously hidden because we didn't even try to load the modules for
+# .multicpptest testcases, so for now just do the parts of the test we did
+# before.  FIXME: Fix this!
 %.multicpptest:
 	$(setup)
 	+$(swig_and_compile_multi_cpp)
-	+$(run_testcase)
+	+[ "$*" = "imports" ] || $(run_multi_testcase)
 
 # Smart target
 %.test:
@@ -72,14 +80,23 @@ missingtests: missingcpptests missingctests
 	    $(MAKE) $*.multicpptest
 
 # Runs the testcase. Tries to run testcase_runme.php, and if that's not found,
-# at least test that the module loads without errors, except for multicpptests.
+# at least test that the module loads without errors.
 run_testcase = \
 	if [ -f $(SCRIPTDIR)/$(SCRIPTPREFIX)$*$(SCRIPTSUFFIX) ]; then \
 	  $(MAKE) -f $(top_builddir)/$(EXAMPLES)/Makefile PHP_EXTENSION=$(TARGETPREFIX)$*@PHP_SO@ PHP_SCRIPT=$(SCRIPTDIR)/$(SCRIPTPREFIX)$*$(SCRIPTSUFFIX) RUNTOOL='$(RUNTOOL)' php_run; \
-	elif [ ! -f $(top_srcdir)/$(EXAMPLES)/$(TEST_SUITE)/$*.list ]; then \
+	else \
 	  $(MAKE) -f $(top_builddir)/$(EXAMPLES)/Makefile PHP_EXTENSION=$(TARGETPREFIX)$*@PHP_SO@ PHP_SCRIPT= RUNTOOL='$(RUNTOOL)' php_run; \
 	fi
 
+# Runs a multicpptest testcase. Tries to run testcase_runme.php, and if that's
+# not found, at least test that the modules load without errors.
+run_multi_testcase = \
+	if [ -f $(SCRIPTDIR)/$(SCRIPTPREFIX)$*$(SCRIPTSUFFIX) ]; then \
+	  $(MAKE) -f $(top_builddir)/$(EXAMPLES)/Makefile PHP_EXTENSION_LIST=$(top_srcdir)/$(EXAMPLES)/$(TEST_SUITE)/$*.list PHP_SCRIPT=$(SCRIPTDIR)/$(SCRIPTPREFIX)$*$(SCRIPTSUFFIX) RUNTOOL='$(RUNTOOL)' php_run_multi; \
+	else \
+	  $(MAKE) -f $(top_builddir)/$(EXAMPLES)/Makefile PHP_EXTENSION_LIST=$(top_srcdir)/$(EXAMPLES)/$(TEST_SUITE)/$*.list PHP_SCRIPT= RUNTOOL='$(RUNTOOL)' php_run_multi; \
+	fi
+
 # Clean: remove the generated PHP-specific files
 %.clean:
 	@rm -f php_$*.h

Examples/test-suite/php/mod_runme.php

@@ -0,0 +1,9 @@
+<?php
+
+require "tests.php";
+
+$c = new C();
+$d = new D();
+$d->DoSomething($c);
+
+check::done();

Examples/test-suite/php/tests.php

@@ -9,18 +9,19 @@ class check {
 
   private static $_werror = false;
 
-  // This is called automatically at the end of this file.
-  static function init() {
-    foreach(get_included_files() as $f) {
-      $module_name = preg_filter('/.*\/([^\/]+)_runme\.php$/', '\1', $f);
-      if ($module_name !== null) break;
+  static function get_extension() {
+    if (self::$_extension === null) {
+      foreach(get_included_files() as $f) {
+	$module_name = preg_filter('/.*\/([^\/]+)_runme\.php$/', '\1', $f);
+	if ($module_name !== null) break;
+      }
+      if ($module_name === null) {
+	print("Failed to determine module name from get_included_files()\n");
+	exit(1);
+      }
+      self::$_extension = new ReflectionExtension($module_name);
     }
-    if ($module_name === null) {
-      print("Failed to determine module name from get_included_files()\n");
-      exit(1);
-    }
-
-    self::$_extension = new ReflectionExtension($module_name);
+    return self::$_extension;
   }
 
   static function werror($v) {
@@ -92,7 +93,7 @@ class check {
     if (! is_array($classes)) $classes=array($classes);
     $message=array();
     $missing=array();
-    $extra = array_flip(array_filter(self::$_extension->getClassNames(),
+    $extra = array_flip(array_filter(self::get_extension()->getClassNames(),
 				     function ($e) { return !preg_match('/^SWIG\\\\/', $e); }));
     foreach($classes as $class) {
       if (! class_exists($class)) $missing[]=$class;
@@ -109,7 +110,7 @@ class check {
     if (! is_array($functions)) $functions=array($functions);
     $message=array();
     $missing=array();
-    $extra = self::$_extension->getFunctions();
+    $extra = self::get_extension()->getFunctions();
     foreach ($functions as $func) {
       if (! function_exists($func)) $missing[]=$func;
       else unset($extra[$func]);
@@ -127,7 +128,7 @@ class check {
     if (! is_array($globals)) $globals=array($globals);
     $message=array();
     $missing=array();
-    $extra = self::$_extension->getFunctions();
+    $extra = self::get_extension()->getFunctions();
     foreach ($globals as $glob) {
       if (! function_exists($glob . "_get") && ! function_exists($glob . "_set")) $missing[]=$glob;
       else {
@@ -149,7 +150,7 @@ class check {
     if (! is_array($constants)) $constants=array($constants);
     $message=array();
     $missing=array();
-    $extra = self::$_extension->getConstants();
+    $extra = self::get_extension()->getConstants();
     unset($extra['swig_runtime_data_type_pointer']);
     foreach($constants as $constant) {
       if (! defined($constant)) $missing[]=$constant;
@@ -213,5 +214,3 @@ class check {
 #    print $_SERVER[argv][0]." ok\n";
   }
 }
-
-check::init();

Lib/php/phprun.swg

@@ -193,7 +193,7 @@ SWIG_ConvertPtrAndOwn(zval *z, void **ptr, swig_type_info *ty, int flags, swig_o
 	/* They don't care about the target type, so just pass on the pointer! */
 	*ptr = value->ptr;
       } else {
-	swig_cast_info *tc = SWIG_TypeCheckStruct(value->type, ty);
+	swig_cast_info *tc = SWIG_TypeCheck(value->type->name, ty);
 	if (tc) {
 	  int newmemory = 0;
 	  *ptr = SWIG_TypeCast(tc, value->ptr, &newmemory);

Source/Modules/php.cxx

@@ -1836,13 +1836,18 @@ public:
       base_class = NewString("Exception");
     }
 
-    if (Equal(base_class, "Exception")) {
+    if (!base_class) {
+      Printf(s_oinit, "  SWIG_Php_ce_%s = zend_register_internal_class(&internal_ce);\n", class_name);
+    } else if (Equal(base_class, "Exception")) {
       Printf(s_oinit, "  SWIG_Php_ce_%s = zend_register_internal_class_ex(&internal_ce, zend_ce_exception);\n", class_name);
     } else if (is_class_wrapped(base_class)) {
       Printf(s_oinit, "  SWIG_Php_ce_%s = zend_register_internal_class_ex(&internal_ce, SWIG_Php_ce_%s);\n", class_name, base_class);
       Setattr(php_parent_class, class_name, base_class);
     } else {
-      Printf(s_oinit, "  SWIG_Php_ce_%s = zend_register_internal_class(&internal_ce);\n", class_name);
+      Printf(s_oinit, "  {\n");
+      Printf(s_oinit, "    swig_type_info *type_info = SWIG_MangledTypeQueryModule(swig_module.next, &swig_module, \"_p_%s\");\n", base_class);
+      Printf(s_oinit, "    SWIG_Php_ce_%s = zend_register_internal_class_ex(&internal_ce, (zend_class_entry*)(type_info ? type_info->clientdata : NULL));\n", class_name);
+      Printf(s_oinit, "  }\n");
     }
 
     if (Getattr(n, "abstracts") && !GetFlag(n, "feature:notabstract")) {