Fix various clang-tidy issues

7 files changed, 78 insertions, 81 deletions

diff --git a/src/env.c b/src/env.c
index 92cb4150..adda27ba 100644
--- a/src/env.c
+++ b/src/env.c
@@ -69,16 +69,16 @@ serd_env_get_base_uri(const SerdEnv* env,
 SERD_API
 SerdStatus
 serd_env_set_base_uri(SerdEnv*        env,
-                      const SerdNode* uri_node)
+                      const SerdNode* uri)
 {
-	if (!env || !uri_node) {
+	if (!env || !uri) {
 		return SERD_ERR_BAD_ARG;
 	}
 
 	// Resolve base URI and create a new node and URI for it
 	SerdURI  base_uri;
 	SerdNode base_uri_node = serd_node_new_uri_from_node(
-		uri_node, &env->base_uri, &base_uri);
+		uri, &env->base_uri, &base_uri);
 
 	if (base_uri_node.buf) {
 		// Replace the current base URI
@@ -128,18 +128,18 @@ SERD_API
 SerdStatus
 serd_env_set_prefix(SerdEnv*        env,
                     const SerdNode* name,
-                    const SerdNode* uri_node)
+                    const SerdNode* uri)
 {
-	if (!name->buf || uri_node->type != SERD_URI) {
+	if (!name->buf || uri->type != SERD_URI) {
 		return SERD_ERR_BAD_ARG;
-	} else if (serd_uri_string_has_scheme(uri_node->buf)) {
+	} else if (serd_uri_string_has_scheme(uri->buf)) {
 		// Set prefix to absolute URI
-		serd_env_add(env, name, uri_node);
+		serd_env_add(env, name, uri);
 	} else {
 		// Resolve relative URI and create a new node and URI for it
 		SerdURI  abs_uri;
 		SerdNode abs_uri_node = serd_node_new_uri_from_node(
-			uri_node, &env->base_uri, &abs_uri);
+			uri, &env->base_uri, &abs_uri);
 
 		// Set prefix to resolved (absolute) URI
 		serd_env_add(env, name, &abs_uri_node);
@@ -185,7 +185,7 @@ SERD_API
 bool
 serd_env_qualify(const SerdEnv*  env,
                  const SerdNode* uri,
-                 SerdNode*       prefix_name,
+                 SerdNode*       prefix,
                  SerdChunk*      suffix)
 {
 	for (size_t i = 0; i < env->n_prefixes; ++i) {
@@ -194,7 +194,7 @@ serd_env_qualify(const SerdEnv*  env,
 			if (!strncmp((const char*)uri->buf,
 			             (const char*)prefix_uri->buf,
 			             prefix_uri->n_bytes)) {
-				*prefix_name = env->prefixes[i].name;
+				*prefix = env->prefixes[i].name;
 				suffix->buf = uri->buf + prefix_uri->n_bytes;
 				suffix->len = uri->n_bytes - prefix_uri->n_bytes;
 				if (is_name(suffix->buf, suffix->len)) {
@@ -209,23 +209,23 @@ serd_env_qualify(const SerdEnv*  env,
 SERD_API
 SerdStatus
 serd_env_expand(const SerdEnv*  env,
-                const SerdNode* qname,
+                const SerdNode* curie,
                 SerdChunk*      uri_prefix,
                 SerdChunk*      uri_suffix)
 {
 	const uint8_t* const colon = (const uint8_t*)memchr(
-		qname->buf, ':', qname->n_bytes + 1);
+		curie->buf, ':', curie->n_bytes + 1);
 	if (!colon) {
-		return SERD_ERR_BAD_ARG;  // Invalid qname
+		return SERD_ERR_BAD_ARG;  // Invalid CURIE
 	}
 
-	const size_t            name_len = colon - qname->buf;
-	const SerdPrefix* const prefix   = serd_env_find(env, qname->buf, name_len);
+	const size_t            name_len = colon - curie->buf;
+	const SerdPrefix* const prefix   = serd_env_find(env, curie->buf, name_len);
 	if (prefix) {
 		uri_prefix->buf = prefix->uri.buf;
 		uri_prefix->len = prefix->uri.n_bytes;
 		uri_suffix->buf = colon + 1;
-		uri_suffix->len = qname->n_bytes - (colon - qname->buf) - 1;
+		uri_suffix->len = curie->n_bytes - (colon - curie->buf) - 1;
 		return SERD_SUCCESS;
 	}
 	return SERD_ERR_NOT_FOUND;
diff --git a/src/node.c b/src/node.c
index c25e06a0..42992917 100644
--- a/src/node.c
+++ b/src/node.c
@@ -33,16 +33,16 @@
 
 SERD_API
 SerdNode
-serd_node_from_string(SerdType type, const uint8_t* buf)
+serd_node_from_string(SerdType type, const uint8_t* str)
 {
-	if (!buf) {
+	if (!str) {
 		return SERD_NODE_NULL;
 	}
 
 	uint32_t     flags       = 0;
 	size_t       buf_n_bytes = 0;
-	const size_t buf_n_chars = serd_strlen(buf, &buf_n_bytes, &flags);
-	SerdNode ret = { buf, buf_n_bytes, buf_n_chars, flags, type };
+	const size_t buf_n_chars = serd_strlen(str, &buf_n_bytes, &flags);
+	SerdNode ret = { str, buf_n_bytes, buf_n_chars, flags, type };
 	return ret;
 }
 
diff --git a/src/reader.c b/src/reader.c
index 54e2724a..0ea95fcc 100644
--- a/src/reader.c
+++ b/src/reader.c
@@ -189,7 +189,7 @@ push_node_padded(SerdReader* reader, size_t maxlen,
 
 #ifdef SERD_STACK_CHECK
 	reader->allocs = realloc(
-		reader->allocs, sizeof(uint8_t*) * (++reader->n_allocs));
+		reader->allocs, sizeof(reader->allocs) * (++reader->n_allocs));
 	reader->allocs[reader->n_allocs - 1] = ((uint8_t*)mem - reader->stack.buf);
 #endif
 	return (uint8_t*)node - reader->stack.buf;
@@ -278,10 +278,9 @@ read_HEX(SerdReader* reader)
 	const uint8_t c = peek_byte(reader);
 	if (is_digit(c) || in_range(c, 'A', 'F') || in_range(c, 'a', 'f')) {
 		return eat_byte_safe(reader, c);
-	} else {
-		return r_err(reader, SERD_ERR_BAD_SYNTAX,
-		             "invalid hexadecimal digit `%c'\n", c);
 	}
+	return r_err(reader, SERD_ERR_BAD_SYNTAX,
+	             "invalid hexadecimal digit `%c'\n", c);
 }
 
 // Read UCHAR escape, initial \ is already eaten by caller
@@ -456,9 +455,8 @@ read_character(SerdReader* reader, Ref dest, SerdNodeFlags* flags, uint8_t c)
 		}
 		push_byte(reader, dest, c);
 		return SERD_SUCCESS;
-	} else {
-		return read_utf8_character(reader, dest, c);
 	}
+	return read_utf8_character(reader, dest, c);
 }
 
 // [10] comment ::= '#' ( [^#xA #xD] )*
@@ -540,11 +538,10 @@ read_STRING_LITERAL_LONG(SerdReader* reader, SerdNodeFlags* flags, uint8_t q)
 				if (q2 == q && q3 == q) {  // End of string
 					eat_byte_safe(reader, q3);
 					return ref;
-				} else {
-					*flags |= SERD_HAS_QUOTE;
-					push_byte(reader, ref, c);
-					read_character(reader, ref, flags, q2);
 				}
+				*flags |= SERD_HAS_QUOTE;
+				push_byte(reader, ref, c);
+				read_character(reader, ref, flags, q2);
 			} else {
 				read_character(reader, ref, flags, eat_byte_safe(reader, c));
 			}
@@ -672,11 +669,10 @@ read_PLX(SerdReader* reader, Ref dest)
 		if (is_alpha(c = peek_byte(reader))) {
 			// Escapes like \u \n etc. are not supported
 			return SERD_ERR_BAD_SYNTAX;
-		} else {
-			// Allow escaping of pretty much any other character
-			push_byte(reader, dest, eat_byte_safe(reader, c));
-			return SERD_SUCCESS;
 		}
+		// Allow escaping of pretty much any other character
+		push_byte(reader, dest, eat_byte_safe(reader, c));
+		return SERD_SUCCESS;
 	default:
 		return SERD_FAILURE;
 	}
@@ -1001,27 +997,26 @@ read_verb(SerdReader* reader, Ref* dest)
 {
 	if (peek_byte(reader) == '<') {
 		return (*dest = read_IRIREF(reader));
-	} else {
-		/* Either a qname, or "a".  Read the prefix first, and if it is in fact
-		   "a", produce that instead.
-		*/
-		*dest = push_node(reader, SERD_CURIE, "", 0);
-		SerdNode*        node    = deref(reader, *dest);
-		const SerdStatus st      = read_PN_PREFIX(reader, *dest);
-		bool             ate_dot = false;
-		if (!st && node->n_bytes == 1 && node->buf[0] == 'a' &&
-		    is_token_end(peek_byte(reader))) {
-			pop_node(reader, *dest);
-			return (*dest = push_node(reader, SERD_URI, NS_RDF "type", 47));
-		} else if (st > SERD_FAILURE ||
-		           !read_PrefixedName(reader, *dest, false, &ate_dot) ||
-		           ate_dot) {
-			return (*dest = pop_node(reader, *dest));
-		} else {
-			return true;
-		}
 	}
-	return false;
+
+	/* Either a qname, or "a".  Read the prefix first, and if it is in fact
+	   "a", produce that instead.
+	*/
+	*dest = push_node(reader, SERD_CURIE, "", 0);
+	SerdNode*        node    = deref(reader, *dest);
+	const SerdStatus st      = read_PN_PREFIX(reader, *dest);
+	bool             ate_dot = false;
+	if (!st && node->n_bytes == 1 && node->buf[0] == 'a' &&
+	    is_token_end(peek_byte(reader))) {
+		pop_node(reader, *dest);
+		return (*dest = push_node(reader, SERD_URI, NS_RDF "type", 47));
+	} else if (st > SERD_FAILURE ||
+	           !read_PrefixedName(reader, *dest, false, &ate_dot) ||
+	           ate_dot) {
+		return (*dest = pop_node(reader, *dest));
+	}
+
+	return true;
 }
 
 static Ref
@@ -1901,16 +1896,18 @@ serd_reader_end_stream(SerdReader* me)
 
 SERD_API
 SerdStatus
-serd_reader_read_file_handle(SerdReader* me, FILE* file, const uint8_t* name)
+serd_reader_read_file_handle(SerdReader*    reader,
+                             FILE*          file,
+                             const uint8_t* name)
 {
 	return serd_reader_read_source(
-		me, (SerdSource)fread, (SerdStreamErrorFunc)ferror,
+		reader, (SerdSource)fread, (SerdStreamErrorFunc)ferror,
 		file, name, SERD_PAGE_SIZE);
 }
 
 SERD_API
 SerdStatus
-serd_reader_read_source(SerdReader*         me,
+serd_reader_read_source(SerdReader*         reader,
                         SerdSource          source,
                         SerdStreamErrorFunc error,
                         void*               stream,
@@ -1918,17 +1915,17 @@ serd_reader_read_source(SerdReader*         me,
                         size_t              page_size)
 {
 	SerdStatus st = serd_reader_start_source_stream(
-		me, source, error, stream, name, page_size);
+		reader, source, error, stream, name, page_size);
 
-	if ((st = serd_reader_prepare(me))) {
-		serd_reader_end_stream(me);
+	if (st || (st = serd_reader_prepare(reader))) {
+		serd_reader_end_stream(reader);
 		return st;
-	} else if (!read_doc(me)) {
-		serd_reader_end_stream(me);
+	} else if (!read_doc(reader)) {
+		serd_reader_end_stream(reader);
 		return SERD_ERR_UNKNOWN;
 	}
 
-	return serd_reader_end_stream(me);
+	return serd_reader_end_stream(reader);
 }
 
 SERD_API
diff --git a/src/serd_internal.h b/src/serd_internal.h
index 297b4507..aa5b3c53 100644
--- a/src/serd_internal.h
+++ b/src/serd_internal.h
@@ -43,7 +43,7 @@
 static inline FILE*
 serd_fopen(const char* path, const char* mode)
 {
-	FILE* fd = fopen((const char*)path, mode);
+	FILE* fd = fopen(path, mode);
 	if (!fd) {
 		fprintf(stderr, "Error opening file %s (%s)\n", path, strerror(errno));
 		return NULL;
diff --git a/src/string.c b/src/string.c
index 1e653795..9381015d 100644
--- a/src/string.c
+++ b/src/string.c
@@ -20,9 +20,9 @@
 
 SERD_API
 const uint8_t*
-serd_strerror(SerdStatus st)
+serd_strerror(SerdStatus status)
 {
-	switch (st) {
+	switch (status) {
 	case SERD_SUCCESS:        return (const uint8_t*)"Success";
 	case SERD_FAILURE:        return (const uint8_t*)"Non-fatal failure";
 	case SERD_ERR_UNKNOWN:    return (const uint8_t*)"Unknown error";
diff --git a/src/uri.c b/src/uri.c
index fcea3b62..543b2305 100644
--- a/src/uri.c
+++ b/src/uri.c
@@ -137,9 +137,9 @@ serd_uri_dump(const SerdURI* uri, FILE* file)
 
 SERD_API
 SerdStatus
-serd_uri_parse(const uint8_t* utf8, SerdURI* uri)
+serd_uri_parse(const uint8_t* utf8, SerdURI* out)
 {
-	*uri = SERD_URI_NULL;
+	*out = SERD_URI_NULL;
 
 	const uint8_t* ptr = utf8;
 
@@ -155,8 +155,8 @@ serd_uri_parse(const uint8_t* utf8, SerdURI* uri)
 				ptr = utf8;
 				goto path;  // Relative URI (starts with path by definition)
 			case ':':
-				uri->scheme.buf = utf8;
-				uri->scheme.len = (ptr++) - utf8;
+				out->scheme.buf = utf8;
+				out->scheme.len = (ptr++) - utf8;
 				goto maybe_authority;  // URI with scheme
 			case '+': case '-': case '.':
 				continue;
@@ -175,14 +175,14 @@ serd_uri_parse(const uint8_t* utf8, SerdURI* uri)
 maybe_authority:
 	if (*ptr == '/' && *(ptr + 1) == '/') {
 		ptr += 2;
-		uri->authority.buf = ptr;
+		out->authority.buf = ptr;
 		for (uint8_t c; (c = *ptr) != '\0'; ++ptr) {
 			switch (c) {
 			case '/': goto path;
 			case '?': goto query;
 			case '#': goto fragment;
 			default:
-				++uri->authority.len;
+				++out->authority.len;
 			}
 		}
 	}
@@ -197,14 +197,14 @@ path:
 	case '\0': goto end;
 	default:  break;
 	}
-	uri->path.buf = ptr;
-	uri->path.len = 0;
+	out->path.buf = ptr;
+	out->path.len = 0;
 	for (uint8_t c; (c = *ptr) != '\0'; ++ptr) {
 		switch (c) {
 		case '?': goto query;
 		case '#': goto fragment;
 		default:
-			++uri->path.len;
+			++out->path.len;
 		}
 	}
 
@@ -214,13 +214,13 @@ path:
 	*/
 query:
 	if (*ptr == '?') {
-		uri->query.buf = ++ptr;
+		out->query.buf = ++ptr;
 		for (uint8_t c; (c = *ptr) != '\0'; ++ptr) {
 			switch (c) {
 			case '#':
 				goto fragment;
 			default:
-				++uri->query.len;
+				++out->query.len;
 			}
 		}
 	}
@@ -231,16 +231,16 @@ query:
 	*/
 fragment:
 	if (*ptr == '#') {
-		uri->fragment.buf = ptr;
+		out->fragment.buf = ptr;
 		while (*ptr++ != '\0') {
-			++uri->fragment.len;
+			++out->fragment.len;
 		}
 	}
 
 end:
 	#ifdef URI_DEBUG
 	fprintf(stderr, "PARSE URI <%s>\n", utf8);
-	serd_uri_dump(uri, stderr);
+	serd_uri_dump(out, stderr);
 	fprintf(stderr, "\n");
 	#endif
 
diff --git a/src/writer.c b/src/writer.c
index 3c3bbb48..75d61bc8 100644
--- a/src/writer.c
+++ b/src/writer.c
@@ -669,7 +669,7 @@ serd_writer_write_statement(SerdWriter*        writer,
 	}
 
 #define TRY(write_result) \
-	if (!write_result) { \
+	if (!(write_result)) { \
 		return SERD_ERR_UNKNOWN; \
 	}