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Added scope class

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Pasha Bibko
2025-04-27 21:18:09 +01:00
parent 321a7fea18
commit a64aa28432
10 changed files with 162 additions and 7 deletions
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49
IR-Generator/inc/Parser.h
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@@ -3,6 +3,7 @@
// Lexer foward declares fstream components so we can use them here //
#include <Lexer.h>
#include <unordered_map>
#include <memory>
// Foward declares STD stuff that is passed around //
@@ -77,8 +78,51 @@ namespace LX
Token got;
};
class Scope
{
public:
// Struct to store all the info of a variable (excluding name as that is stored in the map) //
struct __declspec(novtable) Variable final
{
// Default constructor //
Variable() {}
// Will hold the type as part of the type here //
// The value of the variable //
llvm::Value* val = nullptr;
};
// Error thrown if the user tried to create a variable that already existed //
struct __declspec(novtable) VariableAlreadyExists final {};
// Error thrown if user tries to access variable that does not exist //
struct __declspec(novtable) VariableDoesntExist final {};
// Default constructor //
Scope()
: m_LocalVariables{}, m_Child(nullptr)
{}
// Gets a variable from the scope by it's name //
Variable* GetVarOfName(const std::string& name);
// Creates a variable of the given name, returns nullptr if a variable with that name already exists //
Variable* CreateVar(const std::string& name);
private:
// Base logic for getting a variable by it's name without any error checking //
Variable* GetVarOfNameImpl(const std::string& name);
// Holds all the variables in the scope (excluding ones owned by the children //
std::unordered_map<std::string, Variable> m_LocalVariables;
// Holds a section of the scope, for example the variables created in a while loop //
std::unique_ptr<Scope> m_Child;
};
// Holds all needed info about a function //
// Currently only holds the body but in the future will hold: name, params, namespace/class-member
// Currently only holds the body but in the future will hold: params, namespace/class-member //
struct FunctionDefinition
{
// Defualt constructor (none other given) //
@@ -86,6 +130,9 @@ namespace LX
// The name of the function //
std::string name;
// The scope off the function //
Scope scope;
// The instructions of the body of the function //
std::vector<std::unique_ptr<AST::Node>> body;