Add assertions for all non-null pointers in the public API

1 files changed, 7 insertions, 0 deletions

diff --git a/src/env.c b/src/env.c
index 8f37ffa4..b0f652c3 100644
--- a/src/env.c
+++ b/src/env.c
@@ -115,6 +115,8 @@ serd_env_base_uri(const SerdEnv* const env)
 SerdStatus
 serd_env_set_base_uri(SerdEnv* const env, const SerdStringView uri)
 {
+  assert(env);
+
   if (!uri.length) {
     serd_node_free(env->base_uri_node);
     env->base_uri_node = NULL;
@@ -179,6 +181,8 @@ serd_env_set_prefix(SerdEnv* const       env,
                     const SerdStringView name,
                     const SerdStringView uri)
 {
+  assert(env);
+
   if (serd_uri_string_has_scheme(uri.data)) {
     // Set prefix to absolute URI
     serd_env_add(env, name, uri);
@@ -323,6 +327,9 @@ serd_env_expand(const SerdEnv* env, const SerdNode* node)
 SerdStatus
 serd_env_write_prefixes(const SerdEnv* const env, const SerdSink* const sink)
 {
+  assert(env);
+  assert(sink);
+
   SerdStatus st = SERD_SUCCESS;
 
   for (size_t i = 0; !st && i < env->n_prefixes; ++i) {