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Scoped Variables

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This commit is contained in:
Markus Hauschild
2013-06-01 20:29:32 +02:00
parent 9fb441dcfd
commit 2456d999d6
2 changed files with 25 additions and 12 deletions
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31
src/AST/CodeGenVisitor.cpp
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@@ -3,8 +3,11 @@
CodeGenVisitor::CodeGenVisitor(llvm::Module* module, llvm::FunctionPassManager *fpm) {
builder_ = new llvm::IRBuilder<>(llvm::getGlobalContext());
module_ = module;
fpm_ = fpm;
module_ = module;
scope_ = 0;
namedValues_.push_back(std::map<std::string, llvm::Value*>());
// create external for random_if
std::vector<llvm::Type*> argt(1, typeToLLVMType(Type::INT));
@@ -271,9 +274,11 @@ void CodeGenVisitor::visit(ReturnStatement* e) {
}
void CodeGenVisitor::visit(Scope* e) {
// TODO increment scope
scope_++;
namedValues_.push_back(std::map<std::string, llvm::Value*>());
e->getSl()->accept(this);
// TODO decrement scope
namedValues_.pop_back();
scope_--;
}
void CodeGenVisitor::visit(StatementList* e) {
@@ -299,17 +304,23 @@ void CodeGenVisitor::visit(LoadExpression *e) {
value_ = getNamedValue(e->getId());
}
void CodeGenVisitor::createAnonymousFunction() {
if (value_) {
value_->dump();
}
// TODO implement
void CodeGenVisitor::JIT(Expression* e) {
// TODO implement ...
}
void CodeGenVisitor::putNamedValue(const std::string& name, llvm::Value* value) {
namedValues_[name] = value;
namedValues_[scope_][name] = value;
}
llvm::Value* CodeGenVisitor::getNamedValue(const std::string& name) {
return namedValues_[name];
llvm::Value* v = 0;
for (int i = scope_; i >= 0; i--) {
if (namedValues_[i][name] != 0) {
v = namedValues_[i][name];
break;
}
}
return v;
}