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Introduce custom adjacency-list based graph

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This commit is contained in:
Alex Coyte
2016-08-24 16:12:51 +10:00
committed by Matthew Barr
parent 05683655cb
commit e1e9010cac
92 changed files with 3730 additions and 1812 deletions
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36
unit/internal/nfagraph_redundancy.cpp
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@@ -55,13 +55,13 @@ TEST(NFAGraph, RemoveRedundancy1) {
unique_ptr<NGWrapper> graph(constructGraphWithCC("(a|b)c", cc, 0));
ASSERT_TRUE(graph.get() != nullptr);
NGHolder &g = *graph;
// Run removeRedundancy
removeRedundancy(*graph, SOM_NONE);
NFAGraph &g = graph->g;
removeRedundancy(g, SOM_NONE);
// Our graph should only have two non-special nodes
ASSERT_EQ((size_t)N_SPECIALS + 2, num_vertices(*graph));
ASSERT_EQ((size_t)N_SPECIALS + 2, num_vertices(g));
// Dot-star start state should be connected to itself and a single other
// vertex
@@ -98,13 +98,13 @@ TEST(NFAGraph, RemoveRedundancy2) {
unique_ptr<NGWrapper> graph(constructGraphWithCC("a.*b?c", cc,
HS_FLAG_DOTALL));
ASSERT_TRUE(graph.get() != nullptr);
NGHolder &g = *graph;
// Run removeRedundancy
removeRedundancy(*graph, SOM_NONE);
NFAGraph &g = graph->g;
removeRedundancy(g, SOM_NONE);
// Our graph should now have only 3 non-special vertices
ASSERT_EQ((size_t)N_SPECIALS + 3, num_vertices(*graph));
ASSERT_EQ((size_t)N_SPECIALS + 3, num_vertices(g));
// Dot-star start state should be connected to itself and a single other
// vertex
@@ -156,12 +156,12 @@ TEST(NFAGraph, RemoveRedundancy3) {
cc, 0));
ASSERT_TRUE(graph.get() != nullptr);
unsigned countBefore = num_vertices(graph->g);
unsigned countBefore = num_vertices(*graph);
removeRedundancy(*graph, SOM_NONE);
// The '(a|b)?' construction (two states) should have disappeared, leaving
// this expr as 'foobar.*teakettle'
ASSERT_EQ(countBefore - 2, num_vertices(graph->g));
ASSERT_EQ(countBefore - 2, num_vertices(*graph));
}
TEST(NFAGraph, RemoveRedundancy4) {
@@ -169,11 +169,11 @@ TEST(NFAGraph, RemoveRedundancy4) {
unique_ptr<NGWrapper> graph(constructGraphWithCC("foo([A-Z]|a|b|q)", cc, 0));
ASSERT_TRUE(graph.get() != nullptr);
unsigned countBefore = num_vertices(graph->g);
unsigned countBefore = num_vertices(*graph);
removeRedundancy(*graph, SOM_NONE);
// We should end up with the alternation collapsing into one state
ASSERT_EQ(countBefore - 3, num_vertices(graph->g));
ASSERT_EQ(countBefore - 3, num_vertices(*graph));
}
TEST(NFAGraph, RemoveRedundancy5) {
@@ -182,12 +182,12 @@ TEST(NFAGraph, RemoveRedundancy5) {
cc, 0));
ASSERT_TRUE(graph.get() != nullptr);
unsigned countBefore = num_vertices(graph->g);
unsigned countBefore = num_vertices(*graph);
removeRedundancy(*graph, SOM_NONE);
// Since we don't return a start offset, the first state ('[0-9]?') is
// redundant.
ASSERT_EQ(countBefore - 1, num_vertices(graph->g));
ASSERT_EQ(countBefore - 1, num_vertices(*graph));
}
TEST(NFAGraph, RemoveEdgeRedundancy1) {
@@ -196,12 +196,12 @@ TEST(NFAGraph, RemoveEdgeRedundancy1) {
auto graph = constructGraphWithCC("A+hatstand", cc, HS_FLAG_DOTALL);
ASSERT_TRUE(graph.get() != nullptr);
unsigned countBefore = num_edges(graph->g);
unsigned countBefore = num_edges(*graph);
removeEdgeRedundancy(*graph, SOM_NONE, cc);
// One edge (the self-loop on the leading A+) should have been removed.
ASSERT_EQ(countBefore - 1, num_edges(graph->g));
ASSERT_EQ(countBefore - 1, num_edges(*graph));
}
TEST(NFAGraph, RemoveEdgeRedundancy2) {
@@ -210,12 +210,12 @@ TEST(NFAGraph, RemoveEdgeRedundancy2) {
auto graph = constructGraphWithCC("foo.*A*bar", cc, HS_FLAG_DOTALL);
ASSERT_TRUE(graph.get() != nullptr);
size_t numEdgesBefore = num_edges(graph->g);
size_t numVertsBefore = num_vertices(graph->g);
size_t numEdgesBefore = num_edges(*graph);
size_t numVertsBefore = num_vertices(*graph);
removeEdgeRedundancy(*graph, SOM_NONE, cc);
// The .* should swallow up the A* and its self-loop.
ASSERT_EQ(numEdgesBefore - 4, num_edges(graph->g));
ASSERT_EQ(numVertsBefore - 1, num_vertices(graph->g));
ASSERT_EQ(numEdgesBefore - 4, num_edges(*graph));
ASSERT_EQ(numVertsBefore - 1, num_vertices(*graph));
}