fluidattacks-blends-domain 0.6.1

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19

use crate::syntax::builders::assignment::build_assignment_node;
use crate::syntax::fields::javascript::assignment_expression;
use crate::syntax::fields::Field;
use crate::syntax::{SyntaxGraphArgs, SyntaxGraphError};
use crate::utilities::text_nodes::node_to_str;
use crate::NodeId;

pub fn reader(
    args: &mut SyntaxGraphArgs<'_>,
    n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
    let graph = args.ast_graph;
    let variable_id = args.required_field_alt(n_id, assignment_expression::LEFT)?;
    let value_id = args.required_field_alt(n_id, assignment_expression::RIGHT)?;
    let operator = args
        .optional_field_alt(n_id, Field::<false>::new("operator_id"))
        .map(|op_id| node_to_str(graph, op_id));
    build_assignment_node(args, n_id, variable_id, Some(value_id), operator).map(Some)
}