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authorDavid Robillard <d@drobilla.net>2018-06-03 19:24:59 +0200
committerDavid Robillard <d@drobilla.net>2022-01-13 23:03:54 -0500
commitdd02840dcb298a63a7fadd5817a71d020786e95e (patch)
treec29261ceff41601d84dc65fd8015951b726faed3
parentbf72cc408db5244881143619236aee20156f4ffd (diff)
downloadserd-dd02840dcb298a63a7fadd5817a71d020786e95e.tar.gz
serd-dd02840dcb298a63a7fadd5817a71d020786e95e.tar.bz2
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Add SerdStatement
-rw-r--r--include/serd/serd.h95
-rw-r--r--meson.build2
-rw-r--r--src/reader.c8
-rw-r--r--src/sink.c17
-rw-r--r--src/statement.c134
-rw-r--r--src/statement.h38
-rw-r--r--src/writer.c14
-rw-r--r--test/meson.build1
-rw-r--r--test/test_read_chunk.c14
-rw-r--r--test/test_reader_writer.c16
-rw-r--r--test/test_sink.c44
-rw-r--r--test/test_statement.c121
12 files changed, 441 insertions, 63 deletions
diff --git a/include/serd/serd.h b/include/serd/serd.h
index 611b0176..49cfcee4 100644
--- a/include/serd/serd.h
+++ b/include/serd/serd.h
@@ -893,6 +893,9 @@ serd_caret_column(const SerdCaret* SERD_NONNULL caret);
@{
*/
+/// A subject, predicate, and object, with optional graph context
+typedef struct SerdStatementImpl SerdStatement;
+
/// Index of a node in a statement
typedef enum {
SERD_SUBJECT = 0, ///< Subject
@@ -902,6 +905,81 @@ typedef enum {
} SerdField;
/**
+ Create a new statement.
+
+ Note that, to minimise model overhead, statements do not own their nodes, so
+ they must have a longer lifetime than the statement for it to be valid. For
+ statements in models, this is the lifetime of the model. For user-created
+ statements, the simplest way to handle this is to use `SerdNodes`.
+
+ @param s The subject
+ @param p The predicate ("key")
+ @param o The object ("value")
+ @param g The graph ("context")
+ @param caret Optional caret at the origin of this statement
+ @return A new statement that must be freed with serd_statement_free()
+*/
+SERD_API
+SerdStatement* SERD_ALLOCATED
+serd_statement_new(const SerdNode* SERD_NONNULL s,
+ const SerdNode* SERD_NONNULL p,
+ const SerdNode* SERD_NONNULL o,
+ const SerdNode* SERD_NULLABLE g,
+ const SerdCaret* SERD_NULLABLE caret);
+
+/// Return a copy of `statement`
+SERD_API
+SerdStatement* SERD_ALLOCATED
+serd_statement_copy(const SerdStatement* SERD_NULLABLE statement);
+
+/// Free `statement`
+SERD_API
+void
+serd_statement_free(SerdStatement* SERD_NULLABLE statement);
+
+/// Return the given node of the statement
+SERD_PURE_API
+const SerdNode* SERD_NULLABLE
+serd_statement_node(const SerdStatement* SERD_NONNULL statement,
+ SerdField field);
+
+/// Return the subject of the statement
+SERD_PURE_API
+const SerdNode* SERD_NONNULL
+serd_statement_subject(const SerdStatement* SERD_NONNULL statement);
+
+/// Return the predicate of the statement
+SERD_PURE_API
+const SerdNode* SERD_NONNULL
+serd_statement_predicate(const SerdStatement* SERD_NONNULL statement);
+
+/// Return the object of the statement
+SERD_PURE_API
+const SerdNode* SERD_NONNULL
+serd_statement_object(const SerdStatement* SERD_NONNULL statement);
+
+/// Return the graph of the statement
+SERD_PURE_API
+const SerdNode* SERD_NULLABLE
+serd_statement_graph(const SerdStatement* SERD_NONNULL statement);
+
+/// Return the source location where the statement originated, or NULL
+SERD_PURE_API
+const SerdCaret* SERD_NULLABLE
+serd_statement_caret(const SerdStatement* SERD_NONNULL statement);
+
+/**
+ Return true iff `a` is equal to `b`, ignoring statement caret metadata.
+
+ Only returns true if nodes are equivalent, does not perform wildcard
+ matching.
+*/
+SERD_PURE_API
+bool
+serd_statement_equals(const SerdStatement* SERD_NULLABLE a,
+ const SerdStatement* SERD_NULLABLE b);
+
+/**
@}
@defgroup serd_world World
@{
@@ -1007,12 +1085,10 @@ typedef SerdStatus (*SerdPrefixFunc)(void* SERD_NULLABLE handle,
Called for every RDF statement in the serialisation.
*/
-typedef SerdStatus (*SerdStatementFunc)(void* SERD_NULLABLE handle,
- SerdStatementFlags flags,
- const SerdNode* SERD_NULLABLE graph,
- const SerdNode* SERD_NONNULL subject,
- const SerdNode* SERD_NONNULL predicate,
- const SerdNode* SERD_NONNULL object);
+typedef SerdStatus (*SerdStatementFunc)(void* SERD_NULLABLE handle,
+ SerdStatementFlags flags,
+ const SerdStatement* SERD_NONNULL
+ statement);
/**
Sink function for anonymous node end markers.
@@ -1092,6 +1168,13 @@ serd_sink_write_prefix(const SerdSink* SERD_NONNULL sink,
const SerdNode* SERD_NONNULL name,
const SerdNode* SERD_NONNULL uri);
+/// Write a statement
+SERD_API
+SerdStatus
+serd_sink_write_statement(const SerdSink* SERD_NONNULL sink,
+ SerdStatementFlags flags,
+ const SerdStatement* SERD_NONNULL statement);
+
/// Write a statement from individual nodes
SERD_API
SerdStatus
diff --git a/meson.build b/meson.build
index 55894241..0f457809 100644
--- a/meson.build
+++ b/meson.build
@@ -93,6 +93,8 @@ sources = [
'src/node.c',
'src/reader.c',
'src/sink.c',
+ 'src/statement.c',
+ 'src/statement.c',
'src/string.c',
'src/syntax.c',
'src/system.c',
diff --git a/src/reader.c b/src/reader.c
index 9957e55c..0f97d237 100644
--- a/src/reader.c
+++ b/src/reader.c
@@ -20,6 +20,7 @@
#include "node.h"
#include "serd_internal.h"
#include "stack.h"
+#include "statement.h"
#include "system.h"
#include "world.h"
@@ -127,8 +128,11 @@ emit_statement(SerdReader* const reader,
(subject and predicate) were already zeroed by subsequent pushes. */
serd_node_zero_pad(o);
- const SerdStatus st = serd_sink_write(
- reader->sink, *ctx.flags, ctx.subject, ctx.predicate, o, ctx.graph);
+ const SerdStatement statement = {{ctx.subject, ctx.predicate, o, ctx.graph},
+ &reader->source.caret};
+
+ const SerdStatus st =
+ serd_sink_write_statement(reader->sink, *ctx.flags, &statement);
*ctx.flags &= SERD_ANON_CONT | SERD_LIST_CONT; // Preserve only cont flags
return st;
diff --git a/src/sink.c b/src/sink.c
index 959a92b3..f78a0f18 100644
--- a/src/sink.c
+++ b/src/sink.c
@@ -16,6 +16,8 @@
#include "sink.h"
+#include "statement.h"
+
#include "serd/serd.h"
#include <assert.h>
@@ -87,6 +89,15 @@ serd_sink_write_prefix(const SerdSink* sink,
}
SerdStatus
+serd_sink_write_statement(const SerdSink* sink,
+ const SerdStatementFlags flags,
+ const SerdStatement* statement)
+{
+ return sink->statement ? sink->statement(sink->handle, flags, statement)
+ : SERD_SUCCESS;
+}
+
+SerdStatus
serd_sink_write(const SerdSink* sink,
const SerdStatementFlags flags,
const SerdNode* subject,
@@ -99,10 +110,8 @@ serd_sink_write(const SerdSink* sink,
assert(predicate);
assert(object);
- return sink->statement
- ? sink->statement(
- sink->handle, flags, graph, subject, predicate, object)
- : SERD_SUCCESS;
+ const SerdStatement statement = {{subject, predicate, object, graph}, NULL};
+ return serd_sink_write_statement(sink, flags, &statement);
}
SerdStatus
diff --git a/src/statement.c b/src/statement.c
new file mode 100644
index 00000000..51788e05
--- /dev/null
+++ b/src/statement.c
@@ -0,0 +1,134 @@
+/*
+ Copyright 2011-2020 David Robillard <d@drobilla.net>
+
+ Permission to use, copy, modify, and/or distribute this software for any
+ purpose with or without fee is hereby granted, provided that the above
+ copyright notice and this permission notice appear in all copies.
+
+ THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#include "statement.h"
+
+#include "caret.h"
+
+#include <assert.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+
+static bool
+is_resource(const SerdNode* const node)
+{
+ const SerdNodeType type = serd_node_type(node);
+
+ return type == SERD_URI || type == SERD_CURIE || type == SERD_BLANK;
+}
+
+bool
+serd_statement_is_valid(const SerdNode* const subject,
+ const SerdNode* const predicate,
+ const SerdNode* const object,
+ const SerdNode* const graph)
+{
+ return subject && predicate && object && is_resource(subject) &&
+ is_resource(predicate) && serd_node_type(predicate) != SERD_BLANK &&
+ (!graph || is_resource(graph));
+}
+
+SerdStatement*
+serd_statement_new(const SerdNode* const s,
+ const SerdNode* const p,
+ const SerdNode* const o,
+ const SerdNode* const g,
+ const SerdCaret* const caret)
+{
+ assert(serd_statement_is_valid(s, p, o, g));
+
+ SerdStatement* statement = (SerdStatement*)malloc(sizeof(SerdStatement));
+ if (statement) {
+ statement->nodes[0] = s;
+ statement->nodes[1] = p;
+ statement->nodes[2] = o;
+ statement->nodes[3] = g;
+ statement->caret = serd_caret_copy(caret);
+ }
+ return statement;
+}
+
+SerdStatement*
+serd_statement_copy(const SerdStatement* const statement)
+{
+ if (!statement) {
+ return NULL;
+ }
+
+ SerdStatement* copy = (SerdStatement*)malloc(sizeof(SerdStatement));
+ memcpy(copy, statement, sizeof(SerdStatement));
+ if (statement->caret) {
+ copy->caret = (SerdCaret*)malloc(sizeof(SerdCaret));
+ memcpy(copy->caret, statement->caret, sizeof(SerdCaret));
+ }
+ return copy;
+}
+
+void
+serd_statement_free(SerdStatement* const statement)
+{
+ if (statement) {
+ free(statement->caret);
+ free(statement);
+ }
+}
+
+const SerdNode*
+serd_statement_node(const SerdStatement* const statement, const SerdField field)
+{
+ return statement->nodes[field];
+}
+
+const SerdNode*
+serd_statement_subject(const SerdStatement* const statement)
+{
+ return statement->nodes[SERD_SUBJECT];
+}
+
+const SerdNode*
+serd_statement_predicate(const SerdStatement* const statement)
+{
+ return statement->nodes[SERD_PREDICATE];
+}
+
+const SerdNode*
+serd_statement_object(const SerdStatement* const statement)
+{
+ return statement->nodes[SERD_OBJECT];
+}
+
+const SerdNode*
+serd_statement_graph(const SerdStatement* const statement)
+{
+ return statement->nodes[SERD_GRAPH];
+}
+
+const SerdCaret*
+serd_statement_caret(const SerdStatement* const statement)
+{
+ return statement->caret;
+}
+
+bool
+serd_statement_equals(const SerdStatement* const a,
+ const SerdStatement* const b)
+{
+ return (a == b || (a && b && serd_node_equals(a->nodes[0], b->nodes[0]) &&
+ serd_node_equals(a->nodes[1], b->nodes[1]) &&
+ serd_node_equals(a->nodes[2], b->nodes[2]) &&
+ serd_node_equals(a->nodes[3], b->nodes[3])));
+}
diff --git a/src/statement.h b/src/statement.h
new file mode 100644
index 00000000..d780afed
--- /dev/null
+++ b/src/statement.h
@@ -0,0 +1,38 @@
+/*
+ Copyright 2011-2020 David Robillard <d@drobilla.net>
+
+ Permission to use, copy, modify, and/or distribute this software for any
+ purpose with or without fee is hereby granted, provided that the above
+ copyright notice and this permission notice appear in all copies.
+
+ THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#ifndef SERD_STATEMENT_H
+#define SERD_STATEMENT_H
+
+#include "serd/serd.h"
+
+#include <stdbool.h>
+
+typedef const SerdNode* SerdQuad[4];
+
+struct SerdStatementImpl {
+ SerdQuad nodes;
+ SerdCaret* caret;
+};
+
+SERD_PURE_FUNC
+bool
+serd_statement_is_valid(const SerdNode* subject,
+ const SerdNode* predicate,
+ const SerdNode* object,
+ const SerdNode* graph);
+
+#endif // SERD_STATEMENT_H
diff --git a/src/writer.c b/src/writer.c
index 8bbd6519..eaea9f3c 100644
--- a/src/writer.c
+++ b/src/writer.c
@@ -754,13 +754,15 @@ write_list_obj(SerdWriter* const writer,
}
static SerdStatus
-serd_writer_write_statement(SerdWriter* const writer,
- const SerdStatementFlags flags,
- const SerdNode* const graph,
- const SerdNode* const subject,
- const SerdNode* const predicate,
- const SerdNode* const object)
+serd_writer_write_statement(SerdWriter* const writer,
+ const SerdStatementFlags flags,
+ const SerdStatement* const statement)
{
+ const SerdNode* const subject = serd_statement_subject(statement);
+ const SerdNode* const predicate = serd_statement_predicate(statement);
+ const SerdNode* const object = serd_statement_object(statement);
+ const SerdNode* const graph = serd_statement_graph(statement);
+
if (!is_resource(subject) || !is_resource(predicate) || !object) {
return SERD_ERR_BAD_ARG;
}
diff --git a/test/meson.build b/test/meson.build
index 692bafe4..57163f23 100644
--- a/test/meson.build
+++ b/test/meson.build
@@ -13,6 +13,7 @@ unit_tests = [
'read_chunk',
'reader_writer',
'sink',
+ 'statement',
'string',
'uri',
'world',
diff --git a/test/test_read_chunk.c b/test/test_read_chunk.c
index db2c210a..f5ba8d93 100644
--- a/test/test_read_chunk.c
+++ b/test/test_read_chunk.c
@@ -48,19 +48,13 @@ on_prefix(void* handle, const SerdNode* name, const SerdNode* uri)
}
static SerdStatus
-on_statement(void* const handle,
- const SerdStatementFlags flags,
- const SerdNode* const graph,
- const SerdNode* const subject,
- const SerdNode* const predicate,
- const SerdNode* const object)
+on_statement(void* const handle,
+ const SerdStatementFlags flags,
+ const SerdStatement* const statement)
{
(void)handle;
(void)flags;
- (void)graph;
- (void)subject;
- (void)predicate;
- (void)object;
+ (void)statement;
++n_statement;
return SERD_SUCCESS;
diff --git a/test/test_reader_writer.c b/test/test_reader_writer.c
index 9a592c3a..bbec9377 100644
--- a/test/test_reader_writer.c
+++ b/test/test_reader_writer.c
@@ -25,18 +25,12 @@
#include <string.h>
static SerdStatus
-test_sink(void* handle,
- SerdStatementFlags flags,
- const SerdNode* graph,
- const SerdNode* subject,
- const SerdNode* predicate,
- const SerdNode* object)
+test_sink(void* handle,
+ SerdStatementFlags flags,
+ const SerdStatement* statement)
{
(void)flags;
- (void)subject;
- (void)predicate;
- (void)object;
- (void)graph;
+ (void)statement;
++*(size_t*)handle;
@@ -163,6 +157,8 @@ test_read_string(void)
serd_sink_set_statement_func(sink, test_sink);
+ serd_sink_set_statement_func(sink, test_sink);
+
// Test reading a string that ends exactly at the end of input (no newline)
assert(
!serd_reader_start_string(reader,
diff --git a/test/test_sink.c b/test/test_sink.c
index 982fc1c9..9f029a10 100644
--- a/test/test_sink.c
+++ b/test/test_sink.c
@@ -26,15 +26,12 @@
#define NS_EG "http://example.org/"
typedef struct {
- const SerdNode* last_base;
- const SerdNode* last_name;
- const SerdNode* last_namespace;
- const SerdNode* last_end;
- const SerdNode* last_subject;
- const SerdNode* last_predicate;
- const SerdNode* last_object;
- const SerdNode* last_graph;
- SerdStatus return_status;
+ const SerdNode* last_base;
+ const SerdNode* last_name;
+ const SerdNode* last_namespace;
+ const SerdNode* last_end;
+ const SerdStatement* last_statement;
+ SerdStatus return_status;
} State;
static SerdStatus
@@ -57,21 +54,15 @@ on_prefix(void* handle, const SerdNode* name, const SerdNode* uri)
}
static SerdStatus
-on_statement(void* handle,
- SerdStatementFlags flags,
- const SerdNode* const graph,
- const SerdNode* const subject,
- const SerdNode* const predicate,
- const SerdNode* const object)
+on_statement(void* handle,
+ SerdStatementFlags flags,
+ const SerdStatement* const statement)
{
(void)flags;
State* state = (State*)handle;
- state->last_subject = subject;
- state->last_predicate = predicate;
- state->last_object = object;
- state->last_graph = graph;
+ state->last_statement = statement;
return state->return_status;
}
@@ -93,13 +84,17 @@ test_callbacks(void)
SerdNode* const uri = serd_new_uri(SERD_STRING(NS_EG "uri"));
SerdNode* const blank = serd_new_blank(SERD_STRING("b1"));
SerdEnv* env = serd_env_new(serd_node_string_view(base));
- State state = {0, 0, 0, 0, 0, 0, 0, 0, SERD_SUCCESS};
+ State state = {0, 0, 0, 0, 0, SERD_SUCCESS};
+
+ SerdStatement* const statement =
+ serd_statement_new(base, uri, blank, NULL, NULL);
// Call functions on a sink with no functions set
SerdSink* null_sink = serd_sink_new(&state, NULL);
assert(!serd_sink_write_base(null_sink, base));
assert(!serd_sink_write_prefix(null_sink, name, uri));
+ assert(!serd_sink_write_statement(null_sink, 0, statement));
assert(!serd_sink_write(null_sink, 0, base, uri, blank, NULL));
assert(!serd_sink_write_end(null_sink, blank));
serd_sink_free(null_sink);
@@ -119,16 +114,15 @@ test_callbacks(void)
assert(serd_node_equals(state.last_name, name));
assert(serd_node_equals(state.last_namespace, uri));
- assert(!serd_sink_write(sink, 0, base, uri, blank, NULL));
- assert(serd_node_equals(state.last_subject, base));
- assert(serd_node_equals(state.last_predicate, uri));
- assert(serd_node_equals(state.last_object, blank));
- assert(!state.last_graph);
+ assert(!serd_sink_write_statement(sink, 0, statement));
+ assert(serd_statement_equals(state.last_statement, statement));
assert(!serd_sink_write_end(sink, blank));
assert(serd_node_equals(state.last_end, blank));
serd_sink_free(sink);
+
+ serd_statement_free(statement);
serd_env_free(env);
serd_node_free(blank);
serd_node_free(uri);
diff --git a/test/test_statement.c b/test/test_statement.c
new file mode 100644
index 00000000..e4219b68
--- /dev/null
+++ b/test/test_statement.c
@@ -0,0 +1,121 @@
+/*
+ Copyright 2011-2020 David Robillard <d@drobilla.net>
+
+ Permission to use, copy, modify, and/or distribute this software for any
+ purpose with or without fee is hereby granted, provided that the above
+ copyright notice and this permission notice appear in all copies.
+
+ THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#undef NDEBUG
+
+#include "serd/serd.h"
+
+#include <assert.h>
+#include <stddef.h>
+
+#define NS_EG "http://example.org/"
+
+static void
+test_copy(void)
+{
+ assert(!serd_statement_copy(NULL));
+
+ SerdNode* const f = serd_new_string(SERD_STRING("file"));
+ SerdNode* const s = serd_new_uri(SERD_STRING(NS_EG "s"));
+ SerdNode* const p = serd_new_uri(SERD_STRING(NS_EG "p"));
+ SerdNode* const o = serd_new_uri(SERD_STRING(NS_EG "o"));
+ SerdNode* const g = serd_new_uri(SERD_STRING(NS_EG "g"));
+
+ SerdCaret* const caret = serd_caret_new(f, 1, 1);
+ SerdStatement* const statement = serd_statement_new(s, p, o, g, caret);
+ SerdStatement* const copy = serd_statement_copy(statement);
+
+ assert(serd_statement_equals(copy, statement));
+ assert(serd_caret_equals(serd_statement_caret(copy), caret));
+
+ serd_statement_free(copy);
+ serd_caret_free(caret);
+ serd_statement_free(statement);
+ serd_node_free(g);
+ serd_node_free(o);
+ serd_node_free(p);
+ serd_node_free(s);
+ serd_node_free(f);
+}
+
+static void
+test_free(void)
+{
+ serd_statement_free(NULL);
+}
+
+static void
+test_fields(void)
+{
+ SerdNode* const f = serd_new_string(SERD_STRING("file"));
+ SerdNode* const s = serd_new_uri(SERD_STRING(NS_EG "s"));
+ SerdNode* const p = serd_new_uri(SERD_STRING(NS_EG "p"));
+ SerdNode* const o = serd_new_uri(SERD_STRING(NS_EG "o"));
+ SerdNode* const g = serd_new_uri(SERD_STRING(NS_EG "g"));
+
+ SerdCaret* const caret = serd_caret_new(f, 1, 1);
+ SerdStatement* const statement = serd_statement_new(s, p, o, g, caret);
+
+ assert(serd_statement_equals(statement, statement));
+ assert(!serd_statement_equals(statement, NULL));
+ assert(!serd_statement_equals(NULL, statement));
+
+ assert(serd_statement_node(statement, SERD_SUBJECT) == s);
+ assert(serd_statement_node(statement, SERD_PREDICATE) == p);
+ assert(serd_statement_node(statement, SERD_OBJECT) == o);
+ assert(serd_statement_node(statement, SERD_GRAPH) == g);
+
+ assert(serd_statement_subject(statement) == s);
+ assert(serd_statement_predicate(statement) == p);
+ assert(serd_statement_object(statement) == o);
+ assert(serd_statement_graph(statement) == g);
+ assert(serd_statement_caret(statement) != caret);
+ assert(serd_caret_equals(serd_statement_caret(statement), caret));
+
+ SerdStatement* const diff_s = serd_statement_new(o, p, o, g, caret);
+ assert(!serd_statement_equals(statement, diff_s));
+ serd_statement_free(diff_s);
+
+ SerdStatement* const diff_p = serd_statement_new(s, o, o, g, caret);
+ assert(!serd_statement_equals(statement, diff_p));
+ serd_statement_free(diff_p);
+
+ SerdStatement* const diff_o = serd_statement_new(s, p, s, g, caret);
+ assert(!serd_statement_equals(statement, diff_o));
+ serd_statement_free(diff_o);
+
+ SerdStatement* const diff_g = serd_statement_new(s, p, o, s, caret);
+ assert(!serd_statement_equals(statement, diff_g));
+ serd_statement_free(diff_g);
+
+ serd_statement_free(statement);
+ serd_caret_free(caret);
+ serd_node_free(g);
+ serd_node_free(o);
+ serd_node_free(p);
+ serd_node_free(s);
+ serd_node_free(f);
+}
+
+int
+main(void)
+{
+ test_copy();
+ test_free();
+ test_fields();
+
+ return 0;
+}