Handle preprocessor conditions inside classes

Also remove the dead parseClass() function.

scripts/dev/gen_stub.php

@@ -194,38 +194,7 @@ function parseFunctionLike(string $name, Node\FunctionLike $func, ?string $cond)
     return new FuncInfo($name, $args, $return, $numRequiredArgs, $cond);
 }
 
-function parseClass(Stmt\Class_ $class): ClassInfo {
+function handlePreprocessorConditions(array &$conds, Stmt $stmt): ?string {
-    $funcs = [];
-    $className = $class->name->toString();
-    foreach ($class as $stmt) {
-        if (!$stmt instanceof Stmt\ClassMethod) {
-            throw new Exception("Not implemented class statement");
-        }
-
-        $funcs[] = parseFunctionLike($className . '_' . $stmt->name->toString(), $stmt);
-    }
-    return new ClassInfo($className, $funcs);
-}
-
-/** @return FuncInfo[] */
-function parseStubFile(string $fileName) {
-    if (!file_exists($fileName)) {
-        throw new Exception("File $fileName does not exist");
-    }
-
-    $code = file_get_contents($fileName);
-
-    $lexer = new PhpParser\Lexer();
-    $parser = new PhpParser\Parser\Php7($lexer);
-    $nodeTraverser = new PhpParser\NodeTraverser;
-    $nodeTraverser->addVisitor(new PhpParser\NodeVisitor\NameResolver);
-
-    $stmts = $parser->parse($code);
-    $nodeTraverser->traverse($stmts);
-
-    $funcInfos = [];
-    $conds = [];
-    foreach ($stmts as $stmt) {
     foreach ($stmt->getComments() as $comment) {
         $text = trim($comment->getText());
         if (preg_match('/^#\s*if\s+(.+)$/', $text, $matches)) {
@@ -250,8 +219,29 @@ function parseStubFile(string $fileName) {
         }
     }
 
-        $cond = empty($conds) ? null : implode(' && ', $conds);
+    return empty($conds) ? null : implode(' && ', $conds);
+}
 
+/** @return FuncInfo[] */
+function parseStubFile(string $fileName) {
+    if (!file_exists($fileName)) {
+        throw new Exception("File $fileName does not exist");
+    }
+
+    $code = file_get_contents($fileName);
+
+    $lexer = new PhpParser\Lexer();
+    $parser = new PhpParser\Parser\Php7($lexer);
+    $nodeTraverser = new PhpParser\NodeTraverser;
+    $nodeTraverser->addVisitor(new PhpParser\NodeVisitor\NameResolver);
+
+    $stmts = $parser->parse($code);
+    $nodeTraverser->traverse($stmts);
+
+    $funcInfos = [];
+    $conds = [];
+    foreach ($stmts as $stmt) {
+        $cond = handlePreprocessorConditions($conds, $stmt);
         if ($stmt instanceof Stmt\Nop) {
             continue;
         }
@@ -264,6 +254,7 @@ function parseStubFile(string $fileName) {
         if ($stmt instanceof Stmt\ClassLike) {
             $className = $stmt->name->toString();
             foreach ($stmt->stmts as $classStmt) {
+                $cond = handlePreprocessorConditions($conds, $classStmt);
                 if ($classStmt instanceof Stmt\Nop) {
                     continue;
                 }