fluidattacks-blends-domain 0.34.0

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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use alloc::borrow::ToOwned;

use crate::query::{label_text, pred_ast};
use crate::syntax::builders::export_statement::build_exported_name_node;
use crate::syntax::fields::javascript::{export_specifier, export_statement};
use crate::syntax::readers::javascript::common::strip_quotes;
use crate::syntax::{SyntaxGraphArgs, SyntaxGraphError};
use crate::utilities::text_nodes::node_to_str;
use crate::{CodeGraph, NodeId};

#[expect(
    clippy::unnecessary_wraps,
    reason = "the signature must match the reader dispatch table"
)]
pub fn reader(
    args: &mut SyntaxGraphArgs<'_>,
    n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
    let graph = args.ast_graph;
    // The specifier sits in an export clause, which sits in the statement.
    let module_name = pred_ast(graph, n_id, Some(2))
        .into_iter()
        .find(|id| graph.label_type(*id) == Some("export_statement"))
        .and_then(|statement_id| args.optional_field_alt(statement_id, export_statement::SOURCE))
        .map(|source_id| strip_quotes(&node_to_str(graph, source_id)));

    let name = args
        .required_field_alt(n_id, export_specifier::NAME)
        .ok()
        .and_then(|name_id| label_text(graph, name_id))
        .map(ToOwned::to_owned)
        .unwrap_or_default();
    let alias = args
        .optional_field_alt(n_id, export_specifier::ALIAS)
        .and_then(|alias_id| label_text(graph, alias_id))
        .map_or_else(|| name.clone(), ToOwned::to_owned);
    let expression = match module_name {
        Some(module_name) => alloc::format!("{module_name}.{name}"),
        None => name,
    };

    Ok(Some(build_exported_name_node(
        args,
        n_id,
        expression,
        Some(alias),
    )))
}