TType* typeChk(Symtable& t,TType* expected = NULL){
bool err=false;
TType* x=t.lookupType(type.name);
#ifdef DEBUG
cout<<"Type Function test "<<type.name<<endl;
#endif
if(x==NULL){
cerr<<"Type "<<type.name<<" not defined"<<endl;
}
TType* c;
for(int i=0;i<args.size();i++){
c=args[i]->typeChk(t);
if(c==NULL) err=true;
}
block->typeChk(t,x);
//cerr<<x<<err<<endl;
if(err){
cerr << "Error in "<<id.name<<" declaration"<<endl;
return NULL;
}
return t.lookupType("void");
}
/* Compile the AST into a module */
void CodeGenContext::generateCode(NBlock& root)
{
std::cout << "Generating code...\n";
/* Create the top level interpreter function to call as entry */
vector<Type*> argTypes;
FunctionType *ftype = FunctionType::get(Type::getVoidTy(getGlobalContext()), argTypes, false);
mainFunction = Function::Create(ftype, GlobalValue::ExternalLinkage, "main", module);
BasicBlock *bblock = BasicBlock::Create(getGlobalContext(), "entry", mainFunction, 0);
/* Push a new variable/block context */
pushBlock(bblock);
root.codeGen(*this); /* emit bytecode for the toplevel block */
builder.CreateRetVoid();
popBlock();
/* Print the bytecode in a human-readable format
to see if our program compiled properly
*/
//std::cout << "Code is generated.\n";
//PassManager pm;
//pm.add(createPrintModulePass(&outs()));
//pm.run(*module);
}
/* Compile AST into a Module */
void CodeGenContext::generateCode(NBlock& root)
{
std::cout << "Generating Code...\n";
// Create top level interpreter functions to use as an entry.
vector<const Type*> argTypes;
FunctionType *ftype = FunctionType::get(Type::getVoidTy(getGlobalContext()), argTypes, false);
mainFunction = Function::Create(ftype, GlobalValue::InternalLinkage, "main", module);
BasicBlock *bblock = BasicBlock::Create(getGlobalContext(), "entry", mainFunction, 0);
// Create a new variable/block context.
pushBlock(bblock);
root.codeGen(*this); /* emit bytecode for the toplevel block. */
ReturnInst::Create(getGlobalContext(), bblock);
popBlock();
/* Print the bytecode out in a human-readable format.
Then we can see if it compiled right */
std::cout << "Code Generation Finished.\n";
PassManager pm;
pm.add(createPrintModulePass(&outs()));
pm.run(*module);
}
