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containers.cpp
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Wed, Jul 8, 9:39 PM

containers.cpp
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* File: containers.cpp
* Author: pgess <v.melnychenko@xreate.org>
*/
#include "compilation/containers.h"
using namespace std;
using namespace llvm;
using namespace xreate;
using namespace xreate::containers;
Iterator*
Iterator::create(xreate::compilation::Context context, const xreate::Symbol& var){
const Implementation& data = Query::queryImplementation(var);
switch(data.impl){
case ON_THE_FLY:
return new IteratorForward<ON_THE_FLY>(context, var, data.extract<ON_THE_FLY>());
case SOLID:
return new IteratorForward<SOLID>(context, var, data.extract<SOLID>());
default: assert(true);
}
assert(false && "Unknown declaration");
return nullptr;
}
llvm::Value*
IteratorForward<ON_THE_FLY>::begin() {
switch(sourceDecl.op) {
case xreate::Operator::LIST:
{
sourceRawType = llvm::Type::getInt32Ty(llvm::getGlobalContext());
return llvm::ConstantInt::get(Type::getInt32Ty(llvm::getGlobalContext()), 0);
};
case xreate::Operator::LIST_RANGE:{
assert(sourceDecl.operands.size()==2);
llvm::Value* result = sourceUnit->process(sourceDecl.operands.at(0));
sourceRawType = result->getType();
return result;
};
default: break;
}
if (linkedlist){
llvm::Value* result = sourceUnit->process(sourceDecl);
sourceRawType = result->getType();
return result;
}
assert(false);
}
llvm::Value*
IteratorForward<ON_THE_FLY>::end(){
switch(sourceDecl.op) {
case xreate::Operator::LIST: {
size_t idLast = sourceDecl.operands.size() - 1;
return ConstantInt::get(sourceRawType, idLast);
}
case xreate::Operator::LIST_RANGE: {
assert(sourceDecl.operands.size() == 2);
llvm::Value* valueEndOfRange = sourceUnit->process(sourceDecl.operands.at(1));
llvm::Value* valueConstOne = llvm::ConstantInt::get(llvm::Type::getInt32Ty(llvm::getGlobalContext()), 1);
return llvm->builder.CreateAdd(valueEndOfRange, valueConstOne);
};
default: break;
}
//return null pointer
if (linkedlist){
return ConstantPointerNull::getNullValue(sourceRawType);
}
assert(false && "Unknown declaration");
return nullptr;
}
llvm::Value*
IteratorForward<ON_THE_FLY>::get(Value* index,const std::string& hintRetVar){
const Expression& currentDecl = CodeScope::getDeclaration(current);
switch (currentDecl.op) {
case xreate::Operator::LIST: {
//TODO re check is it right scope(source) to compile currentDecl. Provide unittests.
llvm::Value* currentValue = sourceUnit->processSymbol(current);
return xreate::compilation::Advanced(context).compileArrayIndex(currentValue, std::vector<Value *>{index});
};
case xreate::Operator::LIST_RANGE: {
return index;
};
case xreate::Operator::MAP: {
assert(currentDecl.getOperands().size()==1);
assert(currentDecl.bindings.size());
assert(currentDecl.blocks.size());
CodeScope* scopeLoop = currentDecl.blocks.front();
std::string varEl = currentDecl.bindings[0];
const Symbol& symbIn = Attachments::get<Symbol>(currentDecl.getOperands()[0]);
auto it = std::unique_ptr<Iterator>(Iterator::create(context, symbIn));
Value* elIn = it->get(index, varEl);
compilation::ICodeScopeUnit* unitLoop = function->getScopeUnit(scopeLoop);
unitLoop->bindArg(elIn, std::move(varEl));
return unitLoop->compile();
}
case xreate::Operator::NONE: {
//TODO review iterator determination strategy for case of Expression::BINDING
assert(currentDecl.__state==Expression::IDENT);
const Symbol& symbIn = Attachments::get<Symbol>(currentDecl);
auto it = std::unique_ptr<Iterator>(Iterator::create(context, symbIn));
return it->get(index);
};
default: break;
}
if (linkedlist){
return index;
}
assert(false && "Unknown declaration");
return nullptr;
}
llvm::Value*
IteratorForward<ON_THE_FLY>::advance(Value* index, const std::string& hintRetVar){
switch(sourceDecl.op)
{
case xreate::Operator::LIST:
case xreate::Operator::LIST_RANGE:
return llvm->builder.CreateAdd(index, llvm::ConstantInt::get(llvm::Type::getInt32Ty(llvm::getGlobalContext()), 1), hintRetVar);
default: break;
}
if (linkedlist){
ExpandedType tySource = llvm->ast->getType(CodeScope::getDeclaration(source));
assert(tySource->__operator == TypeOperator::ARRAY && "Linked list implementation has to have ARRAY type");
assert(tySource->__operands.size());
return xreate::compilation::Advanced(context).compileStructIndex(index, ExpandedType(TypeAnnotation(tySource->__operands.at(0))), linkedlist.fieldPointer);
}
assert(false && "Unknown declaration");
return nullptr;
}
//const ImplementationRec<ON_THE_FLY>& implementation
IteratorForward<SOLID>::IteratorForward(const compilation::Context& ctx, const xreate::Symbol& symbolContainer, const ImplementationRec<SOLID>& implementation)
: Iterator(), __length(implementation.size), llvm(ctx.pass->man->llvm)
{
__container = ctx.function->getScopeUnit(symbolContainer.scope)->processSymbol(symbolContainer);
}
llvm::Value*
IteratorForward<SOLID>::begin(){
//0
return llvm::ConstantInt::get(llvm::Type::getInt32Ty(llvm::getGlobalContext()), 0);
}
llvm::Value*
IteratorForward<SOLID>::end(){
//length
return llvm::ConstantInt::get(llvm::Type::getInt32Ty(llvm::getGlobalContext()), __length);
}
llvm::Value*
IteratorForward<SOLID>::get(llvm::Value* index,const std::string& hintRetVar){
//GEP[index]]
llvm::Type* tyNum = llvm::Type::getInt32Ty(llvm::getGlobalContext());
llvm::Value* pResult = llvm->builder.CreateGEP(__container, ArrayRef<Value *>(std::vector<Value*>{ConstantInt::get(tyNum, 0), index}));
return llvm->builder.CreateLoad(pResult, hintRetVar);
}
llvm::Value*
IteratorForward<SOLID>::advance(llvm::Value* index, const std::string& hintRetVar){
//index + 1
llvm::Type* tyNum = llvm::Type::getInt32Ty(llvm::getGlobalContext());
return llvm->builder.CreateAdd(index, llvm::ConstantInt::get(tyNum, 1), hintRetVar);
}

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