fluidattacks-blends-domain 0.6.1

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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use crate::query::match_ast;
use crate::syntax::builders::method_declaration::{
    build_method_declaration_node, MethodDirectChildren, MethodListChildren,
};
use crate::syntax::fields::java::{constructor_declaration, method_declaration};
use crate::syntax::metadata::java::add_method_to_metadata;
use crate::syntax::readers::java::common::extract_modifiers;
use crate::syntax::{SyntaxGraphArgs, SyntaxGraphError};
use crate::utilities::text_nodes::node_to_str;
use crate::{CodeGraph, NodeId};

pub fn reader(
    args: &mut SyntaxGraphArgs<'_>,
    n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
    let (name_id, block_id, parameters_id) = match args.ast_graph.label_type(n_id) {
        Some("constructor_declaration") => (
            args.required_field_alt(n_id, constructor_declaration::NAME)?,
            Some(args.required_field_alt(n_id, constructor_declaration::BODY)?),
            args.required_field_alt(n_id, constructor_declaration::PARAMETERS)?,
        ),
        Some("method_declaration") => (
            args.required_field_alt(n_id, method_declaration::NAME)?,
            args.optional_field_alt(n_id, method_declaration::BODY),
            args.required_field_alt(n_id, method_declaration::PARAMETERS)?,
        ),
        _ => return Err(SyntaxGraphError::UnexpectedAstShape),
    };
    let name = node_to_str(args.ast_graph, name_id);
    let include_params =
        match_ast(args.ast_graph, parameters_id, &["(", ")"], None).contains_key("__0__");
    let (modifiers_id, access_modifiers) = extract_modifiers(args.ast_graph, n_id);

    if args.syntax_graph.nodes.contains_key(&NodeId(0)) {
        add_method_to_metadata(args, n_id, &name)?;
    }

    let direct = MethodDirectChildren {
        block_id,
        modifiers_id,
        parameters_id: include_params.then_some(parameters_id),
    };
    build_method_declaration_node(
        args,
        n_id,
        Some(name),
        &direct,
        &MethodListChildren::default(),
        access_modifiers,
    )
    .map(Some)
}