parse

pub fn parse(gpa: Allocator, ast: *const Ast, rng: std.Random, options: ParseOptions) Error!Manifest

File

Code

pub fn parse(gpa: Allocator, ast: *const Ast, rng: std.Random, options: ParseOptions) Error!Manifest {
    const main_node_index = ast.nodeData(.root).node;

    var arena_instance = std.heap.ArenaAllocator.init(gpa);
    errdefer arena_instance.deinit();

    var p: Parse = .{
        .gpa = gpa,
        .ast = ast.*,
        .arena = arena_instance.allocator(),
        .errors = .empty,

        .name = undefined,
        .id = 0,
        .version = undefined,
        .version_node = undefined,
        .dependencies = .{},
        .dependencies_node = .none,
        .paths = .empty,
        .allow_missing_paths_field = options.allow_missing_paths_field,
        .minimum_zig_version = null,
        .buf = .empty,
    };
    defer p.buf.deinit(gpa);
    defer p.errors.deinit(gpa);
    defer p.dependencies.deinit(gpa);
    defer p.paths.deinit(gpa);

    p.parseRoot(main_node_index, rng) catch |err| switch (err) {
        error.ParseFailure => assert(p.errors.items.len > 0),
        else => |e| return e,
    };

    return .{
        .name = p.name,
        .id = p.id,
        .version = p.version,
        .version_node = p.version_node,
        .dependencies = try p.dependencies.clone(p.arena),
        .dependencies_node = p.dependencies_node,
        .paths = try p.paths.clone(p.arena),
        .minimum_zig_version = p.minimum_zig_version,
        .errors = try p.arena.dupe(ErrorMessage, p.errors.items),
        .arena_state = arena_instance.state,
    };
}