Method normalize_fn_ref_value

codegraph-kernel/src/php.rs:1261–1322

(&mut self, v: Node<'t>, from: u32, depth: u32)

    }

    fn normalize_fn_ref_value(&mut self, v: Node<'t>, from: u32, depth: u32) {
        stack_guard!();
        if depth > 4 {
            return;
        }
        match v.kind() {
            "argument" => {
                for i in 0..v.named_child_count() {
                    if let Some(c) = v.named_child(i) {
                        self.normalize_fn_ref_value(c, from, depth + 1);
                    }
                }
            }
            // String callable — trustworthy ONLY as an argument to a known
            // callable-taking core function; skipGate (resolution's
            // unique-or-drop rule takes over). Namespaced strings drop.
            "string" | "encapsed_string" => {
                let Some(callee) = php_enclosing_call_name(v).map(|f| self.text(f)) else {
                    return;
                };
                if !is_php_callable_hof(callee) {
                    return;
                }
                let Some(content) = self.php_string_content(v) else { return };
                if simple_callable_re().is_match(&content) || qualified_callable_re().is_match(&content)
                {
                    self.push_fn_ref_cand(from, &content, v, true);
                }
            }
            // Array callables in ANY call's arguments: `[$this, 'm']` →
            // this.m; `[Foo::class, 'm']` → Foo::m; `['Cls', 'm']` → nothing.
            "array_creation_expression" => {
                if v.named_child_count() != 2 {
                    return;
                }
                let recv = v.named_child(0).and_then(|e| e.named_child(0));
                let str_el = v.named_child(1).and_then(|e| e.named_child(0));
                let (Some(recv), Some(str_el)) = (recv, str_el) else { return };
                if !matches!(str_el.kind(), "encapsed_string" | "string") {
                    return;
                }
                let Some(member) = self.php_string_content(str_el) else { return };
                if !simple_callable_re().is_match(&member) {
                    return;
                }
                if recv.kind() == "variable_name" && self.text(recv) == "$this" {
                    let name = format!("this.{member}");
                    self.push_fn_ref_cand(from, &name, str_el, false);
                } else if recv.kind() == "class_constant_access_expression" {
                    let cls = recv.named_child(0);
                    let kw = recv.named_child(1);
                    if let (Some(cls), Some(kw)) = (cls, kw) {
                        if self.text(kw) == "class" {
                            let name = format!("{}::{member}", self.text(cls));
                            self.push_fn_ref_cand(from, &name, str_el, false);
                        }
                    }
                }