Function elixir_process_function_def

internal/cbm/extract_channels.c:931–957

Detect handle_in("event", payload, socket) — Phoenix Channel listener */

/* Detect handle_in("event", payload, socket) — Phoenix Channel listener */
static void elixir_process_function_def(CBMExtractCtx *ctx, TSNode func_def) {
    TSNode name_node = ts_node_child_by_field_name(func_def, TS_FIELD("name"));
    if (ts_node_is_null(name_node)) {
        return;
    }
    char *name = cbm_node_text(ctx->arena, name_node, ctx->source);
    if (!name || strcmp(name, "handle_in") != 0) {
        return;
    }
    /* First parameter is the event name pattern */
    TSNode params = ts_node_child_by_field_name(func_def, TS_FIELD("parameters"));
    if (ts_node_is_null(params)) {
        return;
    }
    uint32_t pc = ts_node_named_child_count(params);
    if (pc == 0) {
        return;
    }
    TSNode first_param = ts_node_named_child(params, 0);
    const char *val = literal_from_arg(ctx, first_param);
    if (!val) {
        val = literal_from_first_child(ctx, first_param);
    }
    if (val) {
        push_channel(ctx, val, "phoenix_channel", CBM_CHANNEL_LISTEN, func_def);
    }
}

static void extract_channels_elixir(CBMExtractCtx *ctx) {
    TSNodeStack stack;