fluidattacks-blends-domain 0.6.1

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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use crate::syntax::builders::utils::register_symbol_in_scope;
use crate::syntax::{SyntaxGraphArgs, SyntaxGraphError, SyntaxNode};
use crate::NodeId;

pub fn build_catch_clause_node(
    args: &mut SyntaxGraphArgs<'_>,
    n_id: NodeId,
    block_node: Option<NodeId>,
    catch_decl: Option<NodeId>,
) -> Result<NodeId, SyntaxGraphError> {
    args.syntax_graph.add_node(
        n_id,
        SyntaxNode::CatchClause {
            block_id: block_node,
            catch_declaration: catch_decl,
        },
    );

    args.metadata.control_flow_stack.push(n_id);

    if let Some(block_node) = block_node {
        let built = args.generic(block_node)?;
        args.syntax_graph.add_ast_edge(n_id, built);
    }

    if let Some(catch_decl) = catch_decl {
        let built = args.generic(catch_decl)?;
        args.syntax_graph.add_ast_edge(n_id, built);

        let variable = match args.syntax_graph.nodes.get(&catch_decl) {
            Some(
                SyntaxNode::Parameter {
                    variable: Some(variable),
                    ..
                }
                | SyntaxNode::VariableDeclaration { variable, .. },
            ) if !variable.is_empty() => Some(variable.clone()),
            _ => None,
        };
        if let Some(variable) = variable {
            register_symbol_in_scope(args.syntax_graph, args.metadata, variable, catch_decl);
        }
    }

    args.metadata.control_flow_stack.pop();

    Ok(n_id)
}