fluidattacks-blends-domain 0.17.1

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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use crate::syntax::fields::php::case_statement;
use crate::{
    query::adj_ast,
    syntax::{
        builders::switch_section::build_switch_section_node, SyntaxGraphArgs, SyntaxGraphError,
    },
    utilities::text_nodes::node_to_str,
    CodeGraph, NodeId,
};
use alloc::borrow::ToOwned;
use alloc::vec::Vec;

pub fn reader(
    args: &mut SyntaxGraphArgs<'_>,
    n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
    let graph = args.ast_graph;

    let case_n_id = args.required_field_alt(n_id, case_statement::VALUE)?;
    let raw = node_to_str(graph, case_n_id);

    let case_expr = if raw.starts_with(['"', '\'']) {
        let mut chars = raw.chars();
        chars.next();
        chars.next_back();
        chars.as_str().to_owned()
    } else {
        raw
    };

    let mut execution_ids: Vec<NodeId> = Vec::new();

    for &id in adj_ast(graph, n_id, Some(1), &[]).iter().skip(3) {
        if graph.label_type(id) == Some("expression_statement") {
            if let Some(&first) = adj_ast(graph, id, Some(1), &[]).first() {
                execution_ids.push(first);
                continue;
            }
        }
        execution_ids.push(id);
    }

    build_switch_section_node(args, n_id, case_expr, &execution_ids).map(Some)
}