Zig 0.17.0-dev (Split by item)

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getGraph

Given that root is the root Module of a compilation, return all Module in the module graph, including root itself. root is guaranteed to be the first module in the returned slice.

Module.getGraph

pub fn getGraph(root: *Module) Graph

File

lib/std/Build/Module.zig:563

Code

pub fn getGraph(root: *Module) Graph {
    if (root.cached_graph.modules.len != 0) {
        return root.cached_graph;
    }

    const arena = root.owner.graph.arena;

    var modules: std.array_hash_map.Auto(*std.Build.Module, []const u8) = .empty;
    var next_idx: usize = 0;

    modules.putNoClobber(arena, root, "root") catch @panic("OOM");

    while (next_idx < modules.count()) {
        const mod = modules.keys()[next_idx];
        next_idx += 1;
        modules.ensureUnusedCapacity(arena, mod.import_table.count()) catch @panic("OOM");
        for (mod.import_table.keys(), mod.import_table.values()) |import_name, other_mod| {
            modules.putAssumeCapacity(other_mod, import_name);
        }
    }

    const result: Graph = .{
        .modules = modules.keys(),
        .names = modules.values(),
    };
    root.cached_graph = result;
    return result;
}