Tons of stuff. Regex still a work in progress, along with related template member function scoping bugs

CMakeLists.txt

@@ -4,6 +4,7 @@ project(Kraken)
 
 
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3")
 
 set( MY_INCLUDES ${PROJECT_SOURCE_DIR}/include)
 

include/RNGLRParser.h

@@ -61,6 +61,8 @@ class RNGLRParser: public Parser {
 
 		std::vector<NodeTree<Symbol>*> nullableParts;
 		std::map<NodeTree<Symbol>, bool> packedMap;
+
+        std::map<ParseRule*, bool> reduceToNullMap;
 };
 
 #endif

include/RegExState.h

@@ -15,7 +15,7 @@ class RegExState {
 
 		void addNext(RegExState* nextState);
 		bool characterIs(char inCharacter);
-		std::vector<RegExState*>* advance(char advanceCharacter);
+		std::vector<RegExState*> advance(char advanceCharacter);
 		std::vector<RegExState*> getNextStates();
 
 		bool isGoal();

krakenGrammer.kgm

@@ -108,9 +108,9 @@ expression = expression WS "<<" WS term | expression WS right_shift WS shiftand
 shiftand = shiftand WS "-" WS term | shiftand WS "\+" WS term | term ;
 term = term WS "/" WS factor | term WS "\*" WS factor | term WS "%" WS factor | factor ;
 factor = "\+\+" WS unarad | unarad WS "\+\+" | "--" WS unarad | unarad WS "--" | "\+" WS unarad | "-" WS unarad | "!" WS unarad | "~" WS unarad | "\(" WS type WS "\)" WS unarad | "\*" WS unarad | "&" WS unarad | unarad ;
-unarad = number | scoped_identifier | scoped_identifier WS template_inst | function_call | bool | string | character | "\(" WS boolean_expression WS "\)" | access_operation | unarad WS "[" WS expression WS "]" | lambda ; 
+unarad = number | scoped_identifier | scoped_identifier WS template_inst | access_operation | function_call | bool | string | character | "\(" WS boolean_expression WS "\)" | unarad WS "[" WS expression WS "]" | lambda ; 
 number = integer | floating_literal ;
-access_operation = unarad "." identifier | unarad "->" identifier ;
+access_operation = unarad "." identifier | unarad "->" identifier | unarad "." identifier WS template_inst | unarad "->" identifier WS template_inst ;
 
 assignment_statement = factor WS "=" WS boolean_expression | factor WS "\+=" WS boolean_expression | factor WS "-=" WS boolean_expression | factor WS "\*=" WS boolean_expression | factor WS "/=" WS boolean_expression ;
 # if it's being assigned to, we allow type inferencing

src/ASTTransformation.cpp

@@ -267,7 +267,7 @@ void ASTTransformation::thirdPass(NodeTree<ASTData>* ast, NodeTree<Symbol>* pars
 	//Note that this pass can instantiate class AND function templates
 	for (NodeTree<Symbol>* i : children) {
 		if (i->getDataRef()->getName() == "type_def") {
-			if (i->getChildren()[1]->getData().getName() == "template_dec") // It's a template
+			if (i->getChildren().size() > 1 && i->getChildren()[1]->getData().getName() == "template_dec") // It's a template
 				continue;	//We've already set up the class templates
 			std::vector<NodeTree<Symbol>*> typedefChildren = i->getChildren();
 			std::string name = concatSymbolTree(typedefChildren[0]);
@@ -751,6 +751,7 @@ NodeTree<ASTData>* ASTTransformation::transform(NodeTree<Symbol>* from, NodeTree
         std::cerr << "///////////////////////////////////////////////////////////////////////////////" << std::endl;
         std::cerr << "Ambigious program when parsed by this grammer! This is a bug, please report it." << std::endl;
         std::cerr << "///////////////////////////////////////////////////////////////////////////////" << std::endl;
+        std::cerr << concatSymbolTree(from) << std::endl;
         throw "Ambigious parse!";
     } else {
         // Should get rid of this eventually. Right now it handles cases like sign, alpha, a comma, etc
@@ -961,6 +962,8 @@ NodeTree<ASTData>* ASTTransformation::templateClassLookup(NodeTree<ASTData>* sco
     auto possibleMatches = scopeLookup(scope, lookup);
     std::cout << "Template Class instantiation has " << possibleMatches.size() << " possible matches." << std::endl;
     for (auto i : possibleMatches) {
+        if (i->getDataRef()->type != type_def)
+            continue;
 	    NodeTree<Symbol>* templateSyntaxTree = i->getDataRef()->valueType->templateDefinition;
 
         auto nameTraitsPairs = makeTemplateNameTraitPairs(templateSyntaxTree->getChildren()[1]);
@@ -1108,6 +1111,8 @@ NodeTree<ASTData>* ASTTransformation::templateFunctionLookup(NodeTree<ASTData>*
     std::cout << "Template Function instantiation has " << possibleMatches.size() << " possible matches." << std::endl;
     int index = 1;
     for (auto i : possibleMatches) {
+        if (i->getDataRef()->type != function)
+            continue;
         std::cout << "Possibility " << index++ << std::endl;
 	    NodeTree<Symbol>* templateSyntaxTree = i->getDataRef()->valueType->templateDefinition;
         if (!templateSyntaxTree) {
@@ -1239,6 +1244,10 @@ std::vector<NodeTree<ASTData>*> ASTTransformation::scopeLookup(NodeTree<ASTData>
 
 std::vector<NodeTree<ASTData>*> ASTTransformation::scopeLookup(NodeTree<ASTData>* scope, std::string lookup, bool includeModules, std::set<NodeTree<ASTData>*> visited) {
     std::cout << "Scp]|[e looking up " << lookup << std::endl;
+    std::cout << "current: " << scope->getDataRef()->toString() << std::endl;
+    for (auto i : scope->getDataRef()->scope)
+        std::cout << "\t" << i.first << std::endl;
+        //std::cout << i.first << " : " << i.second->toString() << std::endl;
     // Don't visit this node again when looking for the smae lookup. Note that we don't prevent coming back for the scope operator, as that should be able to come back.
     if (visited.find(scope) != visited.end())
         return std::vector<NodeTree<ASTData>*>();
@@ -1559,7 +1568,8 @@ NodeTree<ASTData>* ASTTransformation::findOrInstantiateFunctionTemplate(std::vec
 		std::cout << ", " << i << " : " << templateChildren[i]->getDataRef()->getName();
 	std::cout << std::endl;
 
-	instantiatedFunction = new NodeTree<ASTData>("function", ASTData(function, Symbol(scopelessFullyInstantiatedName, true), typeFromTypeNode(templateChildren[templateChildren.size()-2], scope, newTemplateTypeReplacement)));
+    // return type should be looked up in template's scope
+	instantiatedFunction = new NodeTree<ASTData>("function", ASTData(function, Symbol(scopelessFullyInstantiatedName, true), typeFromTypeNode(templateChildren[templateChildren.size()-2], templateDefinition, newTemplateTypeReplacement)));
     addToScope("~enclosing_scope", templateDefinition->getDataRef()->scope["~enclosing_scope"][0], instantiatedFunction);
     addToScope(scopelessFullyInstantiatedName, instantiatedFunction, templateDefinition->getDataRef()->scope["~enclosing_scope"][0]);
     templateDefinition->getDataRef()->scope["~enclosing_scope"][0]->addChild(instantiatedFunction); // Add this object the the highest scope's

src/RNGLRParser.cpp

@@ -426,8 +426,13 @@ bool RNGLRParser::fullyReducesToNull(ParseRule* rule) {
 }
 
 bool RNGLRParser::reducesToNull(ParseRule* rule) {
+    auto itr = reduceToNullMap.find(rule);
+    if (itr != reduceToNullMap.end())
+        return itr->second;
 	std::vector<Symbol> avoidList;
-	return reducesToNull(rule, avoidList);
+	auto val = reducesToNull(rule, avoidList);
+    reduceToNullMap[rule] = val;
+	return val;
 }
 
 bool RNGLRParser::reducesToNull(ParseRule* rule, std::vector<Symbol> avoidList) {

src/RegEx.cpp

@@ -148,15 +148,10 @@ int RegEx::longMatch(std::string stringToMatch) {
 		//Go through every current state. Check to see if it is goal, if so update last goal.
 		//Also, add each state's advance to nextStates
 		for (std::vector<RegExState*>::size_type j = 0; j < currentStates.size(); j++) {
-			if (currentStates[j]->isGoal()) {
+			if (currentStates[j]->isGoal())
 				lastMatch = i;
-				//std::cout << "Hit goal at " << i << " character: " << stringToMatch[i-1] << std::endl;
+			std::vector<RegExState*> addStates = currentStates[j]->advance(stringToMatch.at(i));
-			} else {
+			nextStates.insert(nextStates.end(), addStates.begin(), addStates.end());
-				//std::cout << "currentState " << j << ", " << currentStates[j]->toString() << " is not goal" <<std::endl;
-			}
-			std::vector<RegExState*>* addStates = currentStates[j]->advance(stringToMatch.at(i));
-			nextStates.insert(nextStates.end(), addStates->begin(), addStates->end());
-			delete addStates;
 		}
 		//Now, clear our current states and add eaczh one of our addStates if it is not already in current states
 

src/RegExState.cpp

@@ -20,11 +20,11 @@ bool RegExState::characterIs(char inCharacter) {
 	return character == inCharacter;
 }
 
-std::vector<RegExState*>* RegExState::advance(char advanceCharacter) {
+std::vector<RegExState*> RegExState::advance(char advanceCharacter) {
-	std::vector<RegExState*>* advanceStates = new std::vector<RegExState*>();
+	std::vector<RegExState*> advanceStates;
 	for (std::vector<RegExState*>::size_type i = 0; i < nextStates.size(); i++) {
 		if (nextStates[i] != NULL && nextStates[i]->characterIs(advanceCharacter))
-			advanceStates->push_back(nextStates[i]);
+			advanceStates.push_back(nextStates[i]);
 	}
 	return advanceStates;
 }

stdlib/conversions.krak

@@ -0,0 +1,11 @@
+
+fun to_char<T>(in: T) : char {
+    var out:char
+	__if_comp__ __C__ {
+		simple_passthrough(in = in: out = out:) """
+        char out = (char) in;
+		"""
+	}
+	return out;
+}
+

stdlib/regex.krak

@@ -1,6 +1,8 @@
 import io
 import vector
 import string
+import mem
+import conversions
 
 fun regex(in: char*):regex {
     return regex(string::string(in))
@@ -19,11 +21,11 @@ obj regexState(Object) {
         return this
     }
     fun construct(): regexState* {
-        return construct(0)
+        return construct(conversions::to_char(0))
     }
     fun copy_construct(old:regexState*): void {
-        character = regexState->character
+        character = old->character
-        next_states.copy_construct(&regexState->next_states)
+        next_states.copy_construct(&old->next_states)
     }
     fun destruct():void {
         next_states.destruct()
@@ -37,17 +39,16 @@ obj regex(Object) {
     var regexString: string::string
     var begin: regexState
     fun construct(regexStringIn: string::string): regex* {
-        regexState.construct()
+        begin.construct()
         regexString.copy_construct(&regexStringIn)
 
         var traverse = &begin
         for (var i = 0; i < regexString.length(); i++;) {
-            var next = new<regexState>()->construct(regexString[i])
+            var next = mem::new<regexState>()->construct(regexString[i])
             traverse->next_states->add(next)
             traverse = next
         }
-        traverse->next_states->add(new<regexState>()->construct(1))
+        traverse->next_states->add(mem::new<regexState>()->construct(conversions::to_char(1)))
-
         return this
     }
     fun copy_construct(old:regex*):void {
@@ -61,13 +62,16 @@ obj regex(Object) {
     fun long_match(to_match: char*): int { return long_match(string::string(to_match)); }
     fun long_match(to_match: string::string): int {
         var next = vector::vector(&begin)
+        //var next.construct() :vector::vector<regexState*>
         var longest = 0
         for (var i = 0; i < to_match.length(); i++;) {
             if (next.size == 0)
                 return longest
             if (next.any_true(fun(state: regexState*):bool { return state->character == 1; }))
                 longest = i
-            next = next.flatten_map(fun(state: regexState*): vector::vector<regexState*> { return state->match(to_match[i]); })
+            //next = next.flatten_map<regexState*>(fun(state: regexState*): vector::vector<regexState*> { return state->match(to_match[i]); })
+            next = next.flatten_map<regexState*>(fun(state: regexState*): vector::vector<regexState*> { return state->match('a'); })
+            //next = next.flatten_map(fun(state: regexState*): vector::vector<regexState*> { return state->match('a'); })
         }
         if (next.any_true(fun(state: regexState*):bool { return state->character == 1; }))
             return to_match.length()

stdlib/string.krak

@@ -1,5 +1,5 @@
-import vector;
+import vector
-import mem;
+import mem
 
 fun string(in:char*):string {
     var out:string = in

stdlib/vector.krak

@@ -2,6 +2,12 @@ import mem:*;
 import util:*;
 import io:*;
 
+fun vector<T>(in:T):vector<T> {
+    var out.construct():vector<T>
+    out.add(in)
+    return out
+}
+
 obj vector<T> (Object) {
     var data: T*;
     var size: int;
@@ -125,6 +131,13 @@ obj vector<T> (Object) {
         }
         return newVec
     }
+    fun filter(func: fun(T):bool):vector<T> {
+        var newVec.construct(): vector<T>
+        for (var i = 0; i < size; i++;)
+            if (func(data[i]))
+                newVec.addEnd(data[i])
+        return newVec
+    }
     fun any_true(func: fun(T):bool):bool {
         for (var i = 0; i < size; i++;)
             if (func(data[i]))

tests/test_conversions.expected_results

@@ -0,0 +1 @@
+A

tests/test_conversions.krak

@@ -0,0 +1,8 @@
+import io:*
+import conversions:*
+
+
+fun main():int {
+    println(to_char(65))
+    return 0
+}