Test voor shift-reduce error

tests/lr0_shift-red.cpp

@@ -0,0 +1,141 @@
+#include <iostream>
+#include <vector>
+#include <set>
+#include <string>
+#include "Parsodus/grammar.h"
+#include "Parsodus/lrtables/generator.h"
+#include "Parsodus/lrtables/SLR1Itemset.h"
+#include "gtest/gtest.h"
+
+#define ACCEPT_STATE 0
+#define ERROR_STATE 0
+
+TEST(lr0, test0) {
+
+
+	pds::Grammar grammar;
+	grammar.start = "S'";
+	grammar.variables = {"S'","S","A","E"};
+	grammar.terminals = {"$",";", "id", ":=", "+"};
+
+	pds::rule rule;
+	rule.head = "S'";
+	rule.tail = {"S","$"};
+	grammar.rules.push_back(rule);
+
+	rule.head = "S";
+        rule.tail = {"S",";","A"};
+        grammar.rules.push_back(rule);
+
+	rule.head = "S";
+        rule.tail = {"A"};
+        grammar.rules.push_back(rule);
+
+	rule.head = "A";
+        rule.tail = {"E"};
+        grammar.rules.push_back(rule);
+
+	rule.head = "A";
+        rule.tail = {"id",":=","E"};
+        grammar.rules.push_back(rule);
+
+        rule.head = "E";
+        rule.tail = {"E","+","id"};
+        grammar.rules.push_back(rule);
+
+        rule.head = "E";
+        rule.tail = {"id"};
+        grammar.rules.push_back(rule);
+	
+	
+	pds::lr::Generator<pds::lr::SLR1Itemset> g(grammar);
+	auto tbl = g.generate(); // LRTable
+	
+	EXPECT_THROW(throw "shift-reduce", std::exception);
+
+	/*
+	std::vector<std::map<std::string, std::pair<pds::lr::Action,std::size_t> >> act {
+		{ 	{"id", make_pair(pds::lr::Action::SHIFT,4) } },
+		{ 	{";", make_pair(pds::lr::Action::SHIFT,5) }, 
+			{"$", make_pair(pds::lr::Action::SHIFT, ACCEPT_STATE)} 
+		},
+                {       {"id", make_pair(pds::lr::Action::REDUCE,3) },
+			{";", make_pair(pds::lr::Action::REDUCE,3) },
+			{"+", make_pair(pds::lr::Action::REDUCE,3) },
+			{":=", make_pair(pds::lr::Action::REDUCE,3) },
+                        {"$", make_pair(pds::lr::Action::REDUCE, 3)}
+                },   		
+		{       {"id", make_pair(pds::lr::Action::REDUCE,4) },
+                        {";", make_pair(pds::lr::Action::REDUCE,4) },
+                        {"+", make_pair(pds::lr::Action::ERROR, ERROR_STATE) },
+                        {":=", make_pair(pds::lr::Action::REDUCE,4) },
+                        {"$", make_pair(pds::lr::Action::REDUCE,4)}
+                },
+		{       {"id", make_pair(pds::lr::Action::REDUCE,7) },
+                       	{";", make_pair(pds::lr::Action::REDUCE,7) },
+                        {"+", make_pair(pds::lr::Action::REDUCE,7) },
+                        {":=", make_pair(pds::lr::Action::ERROR, ERROR_STATE) },
+                        {"$", make_pair(pds::lr::Action::REDUCE, 7)}
+                },
+		{       {"id", make_pair(pds::lr::Action::SHIFT,4) } },
+		{       {"id", make_pair(pds::lr::Action::SHIFT,9) } },
+		{       {"id", make_pair(pds::lr::Action::SHIFT, 11) } },
+                {       {"id", make_pair(pds::lr::Action::REDUCE,2) },
+                        {";", make_pair(pds::lr::Action::REDUCE,2) },
+                        {"+", make_pair(pds::lr::Action::REDUCE,2) },
+                        {":=", make_pair(pds::lr::Action::REDUCE,2) },
+                        {"$", make_pair(pds::lr::Action::REDUCE, 2)}
+                },
+                {       {"id", make_pair(pds::lr::Action::REDUCE,6) },
+                        {";", make_pair(pds::lr::Action::REDUCE,6) },
+                        {"+", make_pair(pds::lr::Action::REDUCE,6) },
+                        {":=", make_pair(pds::lr::Action::REDUCE,6) },
+                        {"$", make_pair(pds::lr::Action::REDUCE, 6)}
+                },
+                {       {"id", make_pair(pds::lr::Action::REDUCE,5) },
+                        {";", make_pair(pds::lr::Action::REDUCE,5) },
+                        {"+", make_pair(pds::lr::Action::ERROR, ERROR_STATE) },
+                        {":=", make_pair(pds::lr::Action::REDUCE,5) },
+                        {"$", make_pair(pds::lr::Action::REDUCE,5)}
+                },
+                {       {"id", make_pair(pds::lr::Action::REDUCE,7) },
+                        {";", make_pair(pds::lr::Action::REDUCE,7) },
+                        {"+", make_pair(pds::lr::Action::REDUCE, 7) },
+                        {":=", make_pair(pds::lr::Action::REDUCE,7) },
+                        {"$", make_pair(pds::lr::Action::REDUCE,7)}
+                },
+
+		
+	};
+
+	std::vector<std::map<std::string, std::size_t>> goto_ = {
+		{ {"S",1}, {"A",2}, {"E",3}  }, /*state_num:1*/
+		{ {"A",8}, {"E",3}  }, /*state_num:5*/
+		{ {"E",10} }, /*state_num:7*/
+	};
+
+	// Action: enum {ERROR,SHIFT,REDUCE,ACCEPT}
+
+	ASSERT_EQ(goto_.size(),tbl.goto_.size());
+	ASSERT_EQ(act.size(),tbl.act.size());
+
+	for(std::size_t i = 0; i < goto_.size(); i++) {
+		EXPECT_EQ(goto_[i].first,tbl.goto_[i].first);
+		EXPECT_EQ(goto_[i].second.first,tbl.goto_[i].second.first);
+		EXPECT_EQ(goto_[i].second.second,tbl.goto_[i].second.second);
+	}
+
+	for(std::size_t i = 0; i < act.size(); i++) {
+		EXPECT_EQ(act[i].first,tbl.act[i].first);
+                EXPECT_EQ(act[i].second.first,tbl.act[i].second.first);
+                EXPECT_EQ(act[i].second.second,tbl.act[i].second.second);
+	}
+	*/
+	
+
+
+    
+   
+}
+
+