Make some refactors for name mangling and encapsulation.

13/CMakeLists.txt

@@ -38,6 +38,8 @@ add_executable(compiler
     graph.cpp graph.hpp
     global_scope.cpp global_scope.hpp
     parse_driver.cpp parse_driver.hpp
+    mangler.cpp mangler.hpp
+    compiler.cpp compiler.hpp
     ${BISON_parser_OUTPUTS}
     ${FLEX_scanner_OUTPUTS}
     main.cpp

13/ast.cpp

@@ -57,9 +57,8 @@ void ast_lid::translate(global_scope& scope) {
 void ast_lid::compile(const env_ptr& env, std::vector<instruction_ptr>& into) const {
     into.push_back(instruction_ptr(
         (this->env->is_global(id)) ?
-            (instruction*) new instruction_pushglobal(id) :
+            (instruction*) new instruction_pushglobal(this->env->get_mangled_name(id)) :
-            (instruction*) new instruction_push(
+            (instruction*) new instruction_push(env->get_offset(id))));
-                env->get_offset(this->env->get_mangled_name(id)))));
 }
 
 void ast_uid::print(int indent, std::ostream& to) const {

13/binop.hpp

@@ -1,4 +1,5 @@
 #pragma once
+#include <array>
 #include <string>
 
 enum binop {
@@ -11,5 +12,10 @@ enum binop {
     LESS_EQUALS,
 };
 
+constexpr binop all_binops[] = {
+    PLUS, MINUS, TIMES, DIVIDE, MODULO,
+    EQUALS, LESS_EQUALS
+};
+
 std::string op_name(binop op);
 std::string op_action(binop op);

13/compiler.cpp

@@ -0,0 +1,181 @@
+#include "compiler.hpp"
+#include "binop.hpp"
+#include "error.hpp"
+#include "global_scope.hpp"
+#include "parse_driver.hpp"
+#include "type.hpp"
+#include "type_env.hpp"
+
+#include "llvm/IR/LegacyPassManager.h"
+#include "llvm/IR/Verifier.h"
+#include "llvm/Support/TargetSelect.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Target/TargetOptions.h"
+#include "llvm/Target/TargetMachine.h"
+
+void compiler::add_default_types() {
+    global_env->bind_type("Int", type_ptr(new type_internal("Int")));
+    global_env->bind_type("Bool", type_ptr(new type_internal("Bool")));
+}
+
+void compiler::add_binop_type(binop op, type_ptr type) {
+    auto name = mng.new_mangled_name(op_action(op));
+    binop_names[op] = name;
+    global_env->bind(op_name(op), std::move(type), visibility::global);
+    global_env->set_mangled_name(op_name(op), name);
+}
+
+void compiler::add_default_function_types() {
+    type_ptr int_type = global_env->lookup_type("Int");
+    assert(int_type != nullptr);
+    type_ptr int_type_app = type_ptr(new type_app(int_type));
+
+    type_ptr bool_type = global_env->lookup_type("Bool");
+    assert(bool_type != nullptr);
+    type_ptr bool_type_app = type_ptr(new type_app(bool_type));
+
+    type_ptr closed_int_op_type(
+            new type_arr(int_type_app, type_ptr(new type_arr(int_type_app, int_type_app))));
+    type_ptr compare_int_op_type(
+            new type_arr(int_type_app, type_ptr(new type_arr(int_type_app, bool_type_app))));
+
+    constexpr binop closed_ops[] = { PLUS, MINUS, TIMES, DIVIDE, MODULO };
+    constexpr binop compare_ops[] = { EQUALS, LESS_EQUALS };
+    for(auto& op : closed_ops) add_binop_type(op, closed_int_op_type);
+    for(auto& op : compare_ops) add_binop_type(op, compare_int_op_type);
+
+    for(auto name : { "True", "False" }) {
+        global_env->bind(name, bool_type_app, visibility::global);
+        global_env->set_mangled_name(name, mng.new_mangled_name(name));
+    }
+}
+
+void compiler::parse() {
+    if(!driver.run_parse())
+        throw compiler_error("failed to open file");
+}
+
+void compiler::typecheck() {
+    std::set<std::string> free_variables;
+    global_defs.find_free(free_variables);
+    global_defs.typecheck(type_m, global_env);
+}
+
+void compiler::translate() {
+    for(auto& data : global_defs.defs_data) {
+        data.second->into_globals(global_scp);
+    }
+    for(auto& defn : global_defs.defs_defn) {
+        auto& function = defn.second->into_global(global_scp);
+        function.body->env->parent->set_mangled_name(defn.first, function.name);
+    }
+}
+
+void compiler::compile() {
+    global_scp.compile();
+}
+
+void compiler::create_llvm_binop(binop op) {
+    auto new_function = ctx.create_custom_function(binop_names.at(op), 2);
+    std::vector<instruction_ptr> instructions;
+    instructions.push_back(instruction_ptr(new instruction_push(1)));
+    instructions.push_back(instruction_ptr(new instruction_eval()));
+    instructions.push_back(instruction_ptr(new instruction_push(1)));
+    instructions.push_back(instruction_ptr(new instruction_eval()));
+    instructions.push_back(instruction_ptr(new instruction_binop(op)));
+    instructions.push_back(instruction_ptr(new instruction_update(2)));
+    instructions.push_back(instruction_ptr(new instruction_pop(2)));
+    ctx.builder.SetInsertPoint(&new_function->getEntryBlock());
+    for(auto& instruction : instructions) {
+        instruction->gen_llvm(ctx, new_function);
+    }
+    ctx.builder.CreateRetVoid();
+}
+
+void compiler::create_llvm_bool(bool b) {
+    auto new_function = ctx.create_custom_function(b ? "True" : "False", 0);
+    std::vector<instruction_ptr> instructions;
+    instructions.push_back(instruction_ptr(new instruction_pushint(b)));
+    instructions.push_back(instruction_ptr(new instruction_update(0)));
+    ctx.builder.SetInsertPoint(&new_function->getEntryBlock());
+    for(auto& instruction : instructions) {
+        instruction->gen_llvm(ctx, new_function);
+    }
+    ctx.builder.CreateRetVoid();
+}
+
+void compiler::generate_llvm() {
+    for(auto op : all_binops) {
+        create_llvm_binop(op);
+    }
+    create_llvm_bool(true);
+    create_llvm_bool(false);
+
+    global_scp.generate_llvm(ctx);
+}
+
+void compiler::output_llvm(const std::string& into) {
+    std::string targetTriple = llvm::sys::getDefaultTargetTriple();
+
+    llvm::InitializeNativeTarget();
+    llvm::InitializeNativeTargetAsmParser();
+    llvm::InitializeNativeTargetAsmPrinter();
+
+    std::string error;
+    const llvm::Target* target =
+        llvm::TargetRegistry::lookupTarget(targetTriple, error);
+    if (!target) {
+        std::cerr << error << std::endl;
+    } else {
+        std::string cpu = "generic";
+        std::string features = "";
+        llvm::TargetOptions options;
+        std::unique_ptr<llvm::TargetMachine> targetMachine(
+                target->createTargetMachine(targetTriple, cpu, features,
+                    options, llvm::Optional<llvm::Reloc::Model>()));
+
+        ctx.module.setDataLayout(targetMachine->createDataLayout());
+        ctx.module.setTargetTriple(targetTriple);
+
+        std::error_code ec;
+        llvm::raw_fd_ostream file(into, ec, llvm::sys::fs::F_None);
+        if (ec) {
+            throw compiler_error("failed to open object file for writing");
+        } else {
+            llvm::CodeGenFileType type = llvm::CGFT_ObjectFile;
+            llvm::legacy::PassManager pm;
+            if (targetMachine->addPassesToEmitFile(pm, file, NULL, type)) {
+                throw compiler_error("failed to add passes to pass manager");
+            } else {
+                pm.run(ctx.module);
+                file.close();
+            }
+        }
+    }
+}
+
+compiler::compiler(const std::string& filename)
+    : file_m(), global_defs(), driver(file_m, global_defs, filename),
+      mng(), global_scp(mng), global_env(new type_env), type_m(), ctx() {
+    add_default_types();
+    add_default_function_types();
+}
+
+void compiler::operator()(const std::string& into) {
+    parse();
+    typecheck();
+    translate();
+    compile();
+    generate_llvm();
+    output_llvm(into);
+}
+
+file_mgr& compiler::get_file_manager() {
+    return file_m;
+}
+
+type_mgr& compiler::get_type_manager() {
+    return type_m;
+}

13/compiler.hpp

@@ -0,0 +1,39 @@
+#pragma once
+#include "binop.hpp"
+#include "parse_driver.hpp" 
+#include "definition.hpp" 
+#include "type_env.hpp" 
+#include "type.hpp"
+#include "global_scope.hpp"
+#include "mangler.hpp" 
+#include "llvm_context.hpp"
+
+class compiler {
+    private:
+        std::map<binop, std::string> binop_names;
+        file_mgr file_m;
+        definition_group global_defs;
+        parse_driver driver;
+        mangler mng;
+        global_scope global_scp;
+        type_env_ptr global_env;
+        type_mgr type_m;
+        llvm_context ctx;
+
+        void add_default_types();
+        void add_binop_type(binop op, type_ptr type);
+        void add_default_function_types();
+        void parse();
+        void typecheck();
+        void translate();
+        void compile();
+        void create_llvm_binop(binop op);
+        void create_llvm_bool(bool b);
+        void generate_llvm();
+        void output_llvm(const std::string& into);
+    public:
+        compiler(const std::string& filename);
+        void operator()(const std::string& into);
+        file_mgr& get_file_manager();
+        type_mgr& get_type_manager();
+};

13/error.cpp

@@ -9,28 +9,28 @@ void compiler_error::print_about(std::ostream& to) {
     to << description << std::endl;
 }
 
-void compiler_error::print_location(std::ostream& to, parse_driver& drv, bool highlight) {
+void compiler_error::print_location(std::ostream& to, file_mgr& fm, bool highlight) {
     if(!loc) return;
     to << "occuring on line " << loc->begin.line << ":" << std::endl;
-    drv.print_location(to, *loc, highlight);
+    fm.print_location(to, *loc, highlight);
 }
 
-void compiler_error::pretty_print(std::ostream& to, parse_driver& drv) {
+void compiler_error::pretty_print(std::ostream& to, file_mgr& fm) {
     print_about(to);
-    print_location(to, drv);
+    print_location(to, fm);
 }
 
 const char* type_error::what() const noexcept {
     return "an error occured while checking the types of the program";
 }
 
-void type_error::pretty_print(std::ostream& to, parse_driver& drv) {
+void type_error::pretty_print(std::ostream& to, file_mgr& fm) {
     print_about(to);
-    print_location(to, drv, true);
+    print_location(to, fm, true);
 }
 
-void unification_error::pretty_print(std::ostream& to, parse_driver& drv, type_mgr& mgr) {
+void unification_error::pretty_print(std::ostream& to, file_mgr& fm, type_mgr& mgr) {
-    type_error::pretty_print(to, drv);
+    type_error::pretty_print(to, fm);
     to << "the expected type was:" << std::endl;
     to << "  \033[34m";
     left->print(mgr, to);

13/error.hpp

@@ -17,9 +17,9 @@ struct compiler_error : std::exception {
     const char* what() const noexcept override;
 
     void print_about(std::ostream& to);
-    void print_location(std::ostream& to, parse_driver& drv, bool highlight = false);
+    void print_location(std::ostream& to, file_mgr& fm, bool highlight = false);
 
-    void pretty_print(std::ostream& to, parse_driver& drv);
+    void pretty_print(std::ostream& to, file_mgr& fm);
 };
 
 struct type_error : compiler_error {
@@ -29,7 +29,7 @@ struct type_error : compiler_error {
         : compiler_error(std::move(d), std::move(l)) {}
 
     const char* what() const noexcept override;
-    void pretty_print(std::ostream& to, parse_driver& drv);
+    void pretty_print(std::ostream& to, file_mgr& fm);
 };
 
 struct unification_error : public type_error {
@@ -40,5 +40,5 @@ struct unification_error : public type_error {
         : left(std::move(l)), right(std::move(r)), 
             type_error("failed to unify types", std::move(loc)) {}
 
-    void pretty_print(std::ostream& to, parse_driver& drv, type_mgr& mgr);
+    void pretty_print(std::ostream& to, file_mgr& fm, type_mgr& mgr);
 };

13/global_scope.cpp

@@ -36,14 +36,23 @@ void global_constructor::generate_llvm(llvm_context& ctx) {
     ctx.builder.CreateRetVoid();
 }
 
-global_function& global_scope::add_function(std::string n, std::vector<std::string> ps, ast_ptr b) {
+global_function& global_scope::add_function(
-    global_function* new_function = new global_function(mangle_name(n), std::move(ps), std::move(b));
+        const std::string& n,
+        std::vector<std::string> ps,
+        ast_ptr b) {
+    auto name = mng->new_mangled_name(n);
+    global_function* new_function =
+        new global_function(std::move(name), std::move(ps), std::move(b));
     functions.push_back(global_function_ptr(new_function));
     return *new_function;
 }
 
-global_constructor& global_scope::add_constructor(std::string n, int8_t t, size_t a) {
+global_constructor& global_scope::add_constructor(
-    global_constructor* new_constructor = new global_constructor(mangle_name(n), t, a);
+        const std::string& n,
+        int8_t t,
+        size_t a) {
+    auto name = mng->new_mangled_name(n);
+    global_constructor* new_constructor = new global_constructor(name, t, a);
     constructors.push_back(global_constructor_ptr(new_constructor));
     return *new_constructor;
 }
@@ -65,19 +74,3 @@ void global_scope::generate_llvm(llvm_context& ctx) {
         function->generate_llvm(ctx);
     }
 }
-
-std::string global_scope::mangle_name(const std::string& n) {
-    auto occurence_it = occurence_count.find(n);
-    int occurence = 0;
-    if(occurence_it != occurence_count.end()) {
-        occurence = occurence_it->second + 1;
-    }
-    occurence_count[n] = occurence;
-
-    std::string final_name = n;
-    if (occurence != 0) {
-        final_name += "_";
-        final_name += std::to_string(occurence);
-    }
-    return final_name;
-}

13/global_scope.hpp

@@ -4,6 +4,7 @@
 #include <vector>
 #include <llvm/IR/Function.h>
 #include "instruction.hpp"
+#include "mangler.hpp"
 
 struct ast;
 using ast_ptr = std::unique_ptr<ast>;
@@ -40,16 +41,18 @@ struct global_constructor {
 using global_constructor_ptr = std::unique_ptr<global_constructor>;
 
 struct global_scope {
-    std::map<std::string, int> occurence_count;
     std::vector<global_function_ptr> functions;
     std::vector<global_constructor_ptr> constructors;
+    mangler* mng;
 
-    global_function& add_function(std::string n, std::vector<std::string> ps, ast_ptr b);
+    global_scope(mangler& m) : mng(&m) {}
-    global_constructor& add_constructor(std::string n, int8_t t, size_t a);
+
+    global_function& add_function(
+            const std::string& n, 
+            std::vector<std::string> ps, 
+            ast_ptr b);
+    global_constructor& add_constructor(const std::string& n, int8_t t, size_t a);
 
     void compile();
     void generate_llvm(llvm_context& ctx);
-
-    private:
-    std::string mangle_name(const std::string& n);
 };

13/main.cpp

@@ -1,214 +1,27 @@
 #include "ast.hpp"
 #include <iostream>
-#include "binop.hpp"
-#include "definition.hpp"
-#include "graph.hpp"
-#include "instruction.hpp"
-#include "llvm_context.hpp"
 #include "parser.hpp"
+#include "compiler.hpp"
 #include "error.hpp"
-#include "type.hpp"
-#include "parse_driver.hpp"
-#include "type_env.hpp"
-#include "llvm/IR/LegacyPassManager.h"
-#include "llvm/IR/Verifier.h"
-#include "llvm/Support/TargetSelect.h"
-#include "llvm/Support/TargetRegistry.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Target/TargetOptions.h"
-#include "llvm/Target/TargetMachine.h"
 
 void yy::parser::error(const yy::location& loc, const std::string& msg) {
     std::cerr << "An error occured: " << msg << std::endl;
 }
 
-void prelude_types(definition_group& defs, type_env_ptr env) {
-    type_ptr int_type = type_ptr(new type_internal("Int")); 
-    env->bind_type("Int", int_type);
-    type_ptr int_type_app = type_ptr(new type_app(int_type));
-
-    type_ptr bool_type = type_ptr(new type_internal("Bool"));
-    env->bind_type("Bool", bool_type);
-    type_ptr bool_type_app = type_ptr(new type_app(bool_type));
-
-    type_ptr binop_type = type_ptr(new type_arr(
-                int_type_app,
-                type_ptr(new type_arr(int_type_app, int_type_app))));
-    type_ptr cmp_type = type_ptr(new type_arr(
-                int_type_app,
-                type_ptr(new type_arr(int_type_app, bool_type_app))));
-
-    constexpr binop number_ops[] = { PLUS, MINUS, TIMES, DIVIDE, MODULO };
-    constexpr binop cmp_ops[] = { EQUALS, LESS_EQUALS };
-    for(auto& op : number_ops) {
-        env->bind(op_name(op), binop_type, visibility::global);
-        env->set_mangled_name(op_name(op), op_action(op));
-    }
-    for(auto& op : cmp_ops) {
-        env->bind(op_name(op), cmp_type, visibility::global);
-        env->set_mangled_name(op_name(op), op_action(op));
-    }
-
-    env->bind("True", bool_type_app, visibility::global);
-    env->bind("False", bool_type_app, visibility::global);
-}
-
-void typecheck_program(
-        definition_group& defs,
-        type_mgr& mgr, type_env_ptr& env) {
-    prelude_types(defs, env);
-
-    std::set<std::string> free;
-    defs.find_free(free);
-    defs.typecheck(mgr, env);
-
-#ifdef DEBUG_OUT
-    for(auto& pair : defs.env->names) {
-        std::cout << pair.first << ": ";
-        pair.second.type->print(mgr, std::cout);
-        std::cout << std::endl;
-    }
-#endif
-}
-
-global_scope translate_program(definition_group& group) {
-    global_scope scope;
-    for(auto& data : group.defs_data) {
-        data.second->into_globals(scope);
-    }
-    for(auto& defn : group.defs_defn) {
-        auto& function = defn.second->into_global(scope);
-        function.body->env->parent->set_mangled_name(defn.first, function.name);
-    }
-    return scope;
-}
-
-void output_llvm(llvm_context& ctx, const std::string& filename) {
-    std::string targetTriple = llvm::sys::getDefaultTargetTriple();
-
-    llvm::InitializeNativeTarget();
-    llvm::InitializeNativeTargetAsmParser();
-    llvm::InitializeNativeTargetAsmPrinter();
-
-    std::string error;
-    const llvm::Target* target =
-        llvm::TargetRegistry::lookupTarget(targetTriple, error);
-    if (!target) {
-        std::cerr << error << std::endl;
-    } else {
-        std::string cpu = "generic";
-        std::string features = "";
-        llvm::TargetOptions options;
-        std::unique_ptr<llvm::TargetMachine> targetMachine(
-                target->createTargetMachine(targetTriple, cpu, features,
-                    options, llvm::Optional<llvm::Reloc::Model>()));
-
-        ctx.module.setDataLayout(targetMachine->createDataLayout());
-        ctx.module.setTargetTriple(targetTriple);
-
-        std::error_code ec;
-        llvm::raw_fd_ostream file(filename, ec, llvm::sys::fs::F_None);
-        if (ec) {
-            throw compiler_error("failed to open object file for writing");
-        } else {
-            llvm::CodeGenFileType type = llvm::CGFT_ObjectFile;
-            llvm::legacy::PassManager pm;
-            if (targetMachine->addPassesToEmitFile(pm, file, NULL, type)) {
-                throw compiler_error("failed to add passes to pass manager");
-            } else {
-                pm.run(ctx.module);
-                file.close();
-            }
-        }
-    }
-}
-
-void gen_llvm_internal_op(llvm_context& ctx, binop op) {
-    auto new_function = ctx.create_custom_function(op_action(op), 2);
-    std::vector<instruction_ptr> instructions;
-    instructions.push_back(instruction_ptr(new instruction_push(1)));
-    instructions.push_back(instruction_ptr(new instruction_eval()));
-    instructions.push_back(instruction_ptr(new instruction_push(1)));
-    instructions.push_back(instruction_ptr(new instruction_eval()));
-    instructions.push_back(instruction_ptr(new instruction_binop(op)));
-    instructions.push_back(instruction_ptr(new instruction_update(2)));
-    instructions.push_back(instruction_ptr(new instruction_pop(2)));
-    ctx.builder.SetInsertPoint(&new_function->getEntryBlock());
-    for(auto& instruction : instructions) {
-        instruction->gen_llvm(ctx, new_function);
-    }
-    ctx.builder.CreateRetVoid();
-}
-
-void gen_llvm_boolean_constructor(llvm_context& ctx, const std::string& s, bool b) {
-    auto new_function = ctx.create_custom_function(s, 0);
-    std::vector<instruction_ptr> instructions;
-    instructions.push_back(instruction_ptr(new instruction_pushint(b)));
-    instructions.push_back(instruction_ptr(new instruction_update(0)));
-    ctx.builder.SetInsertPoint(&new_function->getEntryBlock());
-    for(auto& instruction : instructions) {
-        instruction->gen_llvm(ctx, new_function);
-    }
-    ctx.builder.CreateRetVoid();
-}
-
-void gen_llvm(global_scope& scope) {
-    llvm_context ctx;
-    gen_llvm_internal_op(ctx, PLUS);
-    gen_llvm_internal_op(ctx, MINUS);
-    gen_llvm_internal_op(ctx, TIMES);
-    gen_llvm_internal_op(ctx, DIVIDE);
-    gen_llvm_internal_op(ctx, MODULO);
-    gen_llvm_internal_op(ctx, EQUALS);
-    gen_llvm_internal_op(ctx, LESS_EQUALS);
-    gen_llvm_boolean_constructor(ctx, "True", true);
-    gen_llvm_boolean_constructor(ctx, "False", false);
-
-    scope.generate_llvm(ctx);
-
-#ifdef DEBUG_OUT
-    ctx.module.print(llvm::outs(), nullptr);
-#endif
-
-    output_llvm(ctx, "program.o");
-}
-
 int main(int argc, char** argv) {
     if(argc != 2) {
         std::cerr << "please enter a file to compile." << std::endl;
         exit(1);
     }
-    parse_driver driver(argv[1]);
+    compiler cmp(argv[1]);
-    if(!driver.run_parse()) {
-        std::cerr << "failed to parse file " << argv[1] << std::endl;
-        exit(1);
-    }
-
-    type_mgr mgr;
-    type_env_ptr env(new type_env);
-
-#ifdef DEBUG_OUT
-    for(auto& def_defn : driver.global_defs.defs_defn) {
-        std::cout << def_defn.second->name;
-        for(auto& param : def_defn.second->params) std::cout << " " << param;
-        std::cout << ":" << std::endl;
-        def_defn.second->body->print(1, std::cout);
-
-        std::cout << std::endl;
-    }
-#endif
 
     try {
-        typecheck_program(driver.global_defs, mgr, env);
+        cmp("program.o");
-        global_scope scope = translate_program(driver.global_defs);
-        scope.compile();
-        gen_llvm(scope);
     } catch(unification_error& err) {
-        err.pretty_print(std::cerr, driver, mgr);
+        err.pretty_print(std::cerr, cmp.get_file_manager(), cmp.get_type_manager());
     } catch(type_error& err) {
-        err.pretty_print(std::cerr, driver);
+        err.pretty_print(std::cerr, cmp.get_file_manager());
     } catch (compiler_error& err) {
-        err.pretty_print(std::cerr, driver);
+        err.pretty_print(std::cerr, cmp.get_file_manager());
     }
 }

13/mangler.cpp

@@ -0,0 +1,17 @@
+#include "mangler.hpp"
+
+std::string mangler::new_mangled_name(const std::string& n) {
+    auto occurence_it = occurence_count.find(n);
+    int occurence = 0;
+    if(occurence_it != occurence_count.end()) {
+        occurence = occurence_it->second + 1;
+    }
+    occurence_count[n] = occurence;
+
+    std::string final_name = n;
+    if (occurence != 0) {
+        final_name += "_";
+        final_name += std::to_string(occurence);
+    }
+    return final_name;
+}

13/mangler.hpp

@@ -0,0 +1,9 @@
+#pragma once
+#include <string>
+#include <map>
+
+struct mangler {
+    std::map<std::string, int> occurence_count;
+
+    std::string new_mangled_name(const std::string& str);
+};

13/parse_driver.cpp

@@ -2,44 +2,37 @@
 #include "scanner.hpp"
 #include <sstream>
 
-bool parse_driver::run_parse() {
+file_mgr::file_mgr() : file_offset(0) {
-    FILE* stream = fopen(file_name.c_str(), "r");
-    if(!stream) return false;
     line_offsets.push_back(0);
-    yyscan_t scanner;
-    yylex_init(&scanner);
-    yyset_in(stream, scanner);
-    yy::parser parser(scanner, *this);
-    parser();
-    yylex_destroy(scanner);
-    fclose(stream);
-    file_contents = string_stream.str();
-    return true;
 }
 
-void parse_driver::write(const char* buf, size_t len) {
+void file_mgr::write(const char* buf, size_t len) {
     string_stream.write(buf, len);
     file_offset += len;
 }
 
-void parse_driver::mark_line() {
+void file_mgr::mark_line() {
     line_offsets.push_back(file_offset);
 }
 
-size_t parse_driver::get_index(int line, int column) {
+void file_mgr::finalize() {
-    assert(line > 0 && line <= line_offsets.size());
+    file_contents = string_stream.str();
-    return line_offsets[line-1] + column - 1;
 }
 
-size_t parse_driver::get_line_end(int line) {
+size_t file_mgr::get_index(int line, int column) const {
+    assert(line > 0 && line <= line_offsets.size());
+    return line_offsets.at(line-1) + column - 1;
+}
+
+size_t file_mgr::get_line_end(int line) const {
     if(line == line_offsets.size()) return file_contents.size();
     return get_index(line+1, 1);
 }
 
-void parse_driver::print_location(
+void file_mgr::print_location(
         std::ostream& stream,
         const yy::location& loc,
-        bool highlight) {
+        bool highlight) const {
     size_t print_start = get_index(loc.begin.line, 1);
     size_t highlight_start = get_index(loc.begin.line, loc.begin.column);
     size_t highlight_end = get_index(loc.end.line, loc.end.column);
@@ -51,3 +44,29 @@ void parse_driver::print_location(
     if(highlight) stream << "\033[0m";
     stream.write(content + highlight_end, print_end - highlight_end);
 }
+
+bool parse_driver::run_parse() {
+    FILE* stream = fopen(file_name.c_str(), "r");
+    if(!stream) return false;
+    yyscan_t scanner;
+    yylex_init(&scanner);
+    yyset_in(stream, scanner);
+    yy::parser parser(scanner, *this);
+    parser();
+    yylex_destroy(scanner);
+    fclose(stream);
+    file_m->finalize();
+    return true;
+}
+
+yy::location& parse_driver::get_current_location() {
+    return location;
+}
+
+file_mgr& parse_driver::get_file_manager() const {
+    return *file_m;
+}
+
+definition_group& parse_driver::get_global_defs() const {
+    return *global_defs;
+}

13/parse_driver.hpp

@@ -11,29 +11,46 @@ struct parse_driver;
 void scanner_init(parse_driver* d, yyscan_t* scanner);
 void scanner_destroy(yyscan_t* scanner);
 
-struct parse_driver {
+class file_mgr {
-    std::string file_name;
+    private:
-    std::ostringstream string_stream;
+        std::ostringstream string_stream;
-    std::string file_contents;
+        std::string file_contents;
 
-    yy::location location;
+        size_t file_offset;
-    size_t file_offset;
+        std::vector<size_t> line_offsets;
-    std::vector<size_t> line_offsets;
+    public:
+        file_mgr();
 
-    definition_group global_defs;
+        void write(const char* buffer, size_t len);
+        void mark_line();
+        void finalize();
 
-    parse_driver(const std::string& file)
+        size_t get_index(int line, int column) const;
-        : file_name(file), file_offset(0) {}
+        size_t get_line_end(int line) const;
+        void print_location(
+                std::ostream& stream,
+                const yy::location& loc,
+                bool highlight = true) const;
+};
+
+class parse_driver {
+    private:
+        std::string file_name;
+        yy::location location;
+        definition_group* global_defs;
+        file_mgr* file_m;
+
+    public:
+    parse_driver(
+            file_mgr& mgr,
+            definition_group& defs,
+            const std::string& file)
+        : file_name(file), file_m(&mgr), global_defs(&defs) {}
 
     bool run_parse();
-    void write(const char* buff, size_t len);
+    yy::location& get_current_location();
-    void mark_line();
+    file_mgr& get_file_manager() const;
-    size_t get_index(int line, int column);
+    definition_group& get_global_defs() const;
-    size_t get_line_end(int line);
-    void print_location(
-            std::ostream& stream,
-            const yy::location& loc,
-            bool highlight = true);
 };
 
 #define YY_DECL yy::parser::symbol_type yylex(yyscan_t yyscanner, parse_driver& drv)

13/parser.y

@@ -68,7 +68,7 @@ using yyscan_t = void*;
 %%
 
 program
-    : definitions { $1.vis = visibility::global; std::swap(drv.global_defs, $1); }
+    : definitions { $1.vis = visibility::global; std::swap(drv.get_global_defs(), $1); }
     ;
 
 definitions

13/scanner.hpp

@@ -0,0 +1,492 @@
+#ifndef yyHEADER_H
+#define yyHEADER_H 1
+#define yyIN_HEADER 1
+
+#line 5 "scanner.hpp"
+
+#line 7 "scanner.hpp"
+
+#define  YY_INT_ALIGNED short int
+
+/* A lexical scanner generated by flex */
+
+#define FLEX_SCANNER
+#define YY_FLEX_MAJOR_VERSION 2
+#define YY_FLEX_MINOR_VERSION 6
+#define YY_FLEX_SUBMINOR_VERSION 4
+#if YY_FLEX_SUBMINOR_VERSION > 0
+#define FLEX_BETA
+#endif
+
+/* First, we deal with  platform-specific or compiler-specific issues. */
+
+/* begin standard C headers. */
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+
+/* end standard C headers. */
+
+/* flex integer type definitions */
+
+#ifndef FLEXINT_H
+#define FLEXINT_H
+
+/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
+
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+
+/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
+ * if you want the limit (max/min) macros for int types. 
+ */
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS 1
+#endif
+
+#include <inttypes.h>
+typedef int8_t flex_int8_t;
+typedef uint8_t flex_uint8_t;
+typedef int16_t flex_int16_t;
+typedef uint16_t flex_uint16_t;
+typedef int32_t flex_int32_t;
+typedef uint32_t flex_uint32_t;
+#else
+typedef signed char flex_int8_t;
+typedef short int flex_int16_t;
+typedef int flex_int32_t;
+typedef unsigned char flex_uint8_t; 
+typedef unsigned short int flex_uint16_t;
+typedef unsigned int flex_uint32_t;
+
+/* Limits of integral types. */
+#ifndef INT8_MIN
+#define INT8_MIN               (-128)
+#endif
+#ifndef INT16_MIN
+#define INT16_MIN              (-32767-1)
+#endif
+#ifndef INT32_MIN
+#define INT32_MIN              (-2147483647-1)
+#endif
+#ifndef INT8_MAX
+#define INT8_MAX               (127)
+#endif
+#ifndef INT16_MAX
+#define INT16_MAX              (32767)
+#endif
+#ifndef INT32_MAX
+#define INT32_MAX              (2147483647)
+#endif
+#ifndef UINT8_MAX
+#define UINT8_MAX              (255U)
+#endif
+#ifndef UINT16_MAX
+#define UINT16_MAX             (65535U)
+#endif
+#ifndef UINT32_MAX
+#define UINT32_MAX             (4294967295U)
+#endif
+
+#ifndef SIZE_MAX
+#define SIZE_MAX               (~(size_t)0)
+#endif
+
+#endif /* ! C99 */
+
+#endif /* ! FLEXINT_H */
+
+/* begin standard C++ headers. */
+
+/* TODO: this is always defined, so inline it */
+#define yyconst const
+
+#if defined(__GNUC__) && __GNUC__ >= 3
+#define yynoreturn __attribute__((__noreturn__))
+#else
+#define yynoreturn
+#endif
+
+/* An opaque pointer. */
+#ifndef YY_TYPEDEF_YY_SCANNER_T
+#define YY_TYPEDEF_YY_SCANNER_T
+typedef void* yyscan_t;
+#endif
+
+/* For convenience, these vars (plus the bison vars far below)
+   are macros in the reentrant scanner. */
+#define yyin yyg->yyin_r
+#define yyout yyg->yyout_r
+#define yyextra yyg->yyextra_r
+#define yyleng yyg->yyleng_r
+#define yytext yyg->yytext_r
+#define yylineno (YY_CURRENT_BUFFER_LVALUE->yy_bs_lineno)
+#define yycolumn (YY_CURRENT_BUFFER_LVALUE->yy_bs_column)
+#define yy_flex_debug yyg->yy_flex_debug_r
+
+/* Size of default input buffer. */
+#ifndef YY_BUF_SIZE
+#ifdef __ia64__
+/* On IA-64, the buffer size is 16k, not 8k.
+ * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
+ * Ditto for the __ia64__ case accordingly.
+ */
+#define YY_BUF_SIZE 32768
+#else
+#define YY_BUF_SIZE 16384
+#endif /* __ia64__ */
+#endif
+
+#ifndef YY_TYPEDEF_YY_BUFFER_STATE
+#define YY_TYPEDEF_YY_BUFFER_STATE
+typedef struct yy_buffer_state *YY_BUFFER_STATE;
+#endif
+
+#ifndef YY_TYPEDEF_YY_SIZE_T
+#define YY_TYPEDEF_YY_SIZE_T
+typedef size_t yy_size_t;
+#endif
+
+#ifndef YY_STRUCT_YY_BUFFER_STATE
+#define YY_STRUCT_YY_BUFFER_STATE
+struct yy_buffer_state
+	{
+	FILE *yy_input_file;
+
+	char *yy_ch_buf;		/* input buffer */
+	char *yy_buf_pos;		/* current position in input buffer */
+
+	/* Size of input buffer in bytes, not including room for EOB
+	 * characters.
+	 */
+	int yy_buf_size;
+
+	/* Number of characters read into yy_ch_buf, not including EOB
+	 * characters.
+	 */
+	int yy_n_chars;
+
+	/* Whether we "own" the buffer - i.e., we know we created it,
+	 * and can realloc() it to grow it, and should free() it to
+	 * delete it.
+	 */
+	int yy_is_our_buffer;
+
+	/* Whether this is an "interactive" input source; if so, and
+	 * if we're using stdio for input, then we want to use getc()
+	 * instead of fread(), to make sure we stop fetching input after
+	 * each newline.
+	 */
+	int yy_is_interactive;
+
+	/* Whether we're considered to be at the beginning of a line.
+	 * If so, '^' rules will be active on the next match, otherwise
+	 * not.
+	 */
+	int yy_at_bol;
+
+    int yy_bs_lineno; /**< The line count. */
+    int yy_bs_column; /**< The column count. */
+
+	/* Whether to try to fill the input buffer when we reach the
+	 * end of it.
+	 */
+	int yy_fill_buffer;
+
+	int yy_buffer_status;
+
+	};
+#endif /* !YY_STRUCT_YY_BUFFER_STATE */
+
+void yyrestart ( FILE *input_file , yyscan_t yyscanner );
+void yy_switch_to_buffer ( YY_BUFFER_STATE new_buffer , yyscan_t yyscanner );
+YY_BUFFER_STATE yy_create_buffer ( FILE *file, int size , yyscan_t yyscanner );
+void yy_delete_buffer ( YY_BUFFER_STATE b , yyscan_t yyscanner );
+void yy_flush_buffer ( YY_BUFFER_STATE b , yyscan_t yyscanner );
+void yypush_buffer_state ( YY_BUFFER_STATE new_buffer , yyscan_t yyscanner );
+void yypop_buffer_state ( yyscan_t yyscanner );
+
+YY_BUFFER_STATE yy_scan_buffer ( char *base, yy_size_t size , yyscan_t yyscanner );
+YY_BUFFER_STATE yy_scan_string ( const char *yy_str , yyscan_t yyscanner );
+YY_BUFFER_STATE yy_scan_bytes ( const char *bytes, int len , yyscan_t yyscanner );
+
+void *yyalloc ( yy_size_t , yyscan_t yyscanner );
+void *yyrealloc ( void *, yy_size_t , yyscan_t yyscanner );
+void yyfree ( void * , yyscan_t yyscanner );
+
+/* Begin user sect3 */
+
+#define yywrap(yyscanner) (/*CONSTCOND*/1)
+#define YY_SKIP_YYWRAP
+
+#define yytext_ptr yytext_r
+
+#ifdef YY_HEADER_EXPORT_START_CONDITIONS
+#define INITIAL 0
+
+#endif
+
+#ifndef YY_NO_UNISTD_H
+/* Special case for "unistd.h", since it is non-ANSI. We include it way
+ * down here because we want the user's section 1 to have been scanned first.
+ * The user has a chance to override it with an option.
+ */
+#include <unistd.h>
+#endif
+
+#ifndef YY_EXTRA_TYPE
+#define YY_EXTRA_TYPE void *
+#endif
+
+int yylex_init (yyscan_t* scanner);
+
+int yylex_init_extra ( YY_EXTRA_TYPE user_defined, yyscan_t* scanner);
+
+/* Accessor methods to globals.
+   These are made visible to non-reentrant scanners for convenience. */
+
+int yylex_destroy ( yyscan_t yyscanner );
+
+int yyget_debug ( yyscan_t yyscanner );
+
+void yyset_debug ( int debug_flag , yyscan_t yyscanner );
+
+YY_EXTRA_TYPE yyget_extra ( yyscan_t yyscanner );
+
+void yyset_extra ( YY_EXTRA_TYPE user_defined , yyscan_t yyscanner );
+
+FILE *yyget_in ( yyscan_t yyscanner );
+
+void yyset_in  ( FILE * _in_str , yyscan_t yyscanner );
+
+FILE *yyget_out ( yyscan_t yyscanner );
+
+void yyset_out  ( FILE * _out_str , yyscan_t yyscanner );
+
+			int yyget_leng ( yyscan_t yyscanner );
+
+char *yyget_text ( yyscan_t yyscanner );
+
+int yyget_lineno ( yyscan_t yyscanner );
+
+void yyset_lineno ( int _line_number , yyscan_t yyscanner );
+
+int yyget_column  ( yyscan_t yyscanner );
+
+void yyset_column ( int _column_no , yyscan_t yyscanner );
+
+/* Macros after this point can all be overridden by user definitions in
+ * section 1.
+ */
+
+#ifndef YY_SKIP_YYWRAP
+#ifdef __cplusplus
+extern "C" int yywrap ( yyscan_t yyscanner );
+#else
+extern int yywrap ( yyscan_t yyscanner );
+#endif
+#endif
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy ( char *, const char *, int , yyscan_t yyscanner);
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen ( const char * , yyscan_t yyscanner);
+#endif
+
+#ifndef YY_NO_INPUT
+
+#endif
+
+/* Amount of stuff to slurp up with each read. */
+#ifndef YY_READ_BUF_SIZE
+#ifdef __ia64__
+/* On IA-64, the buffer size is 16k, not 8k */
+#define YY_READ_BUF_SIZE 16384
+#else
+#define YY_READ_BUF_SIZE 8192
+#endif /* __ia64__ */
+#endif
+
+/* Number of entries by which start-condition stack grows. */
+#ifndef YY_START_STACK_INCR
+#define YY_START_STACK_INCR 25
+#endif
+
+/* Default declaration of generated scanner - a define so the user can
+ * easily add parameters.
+ */
+#ifndef YY_DECL
+#define YY_DECL_IS_OURS 1
+
+extern int yylex (yyscan_t yyscanner);
+
+#define YY_DECL int yylex (yyscan_t yyscanner)
+#endif /* !YY_DECL */
+
+/* yy_get_previous_state - get the state just before the EOB char was reached */
+
+#undef YY_NEW_FILE
+#undef YY_FLUSH_BUFFER
+#undef yy_set_bol
+#undef yy_new_buffer
+#undef yy_set_interactive
+#undef YY_DO_BEFORE_ACTION
+
+#ifdef YY_DECL_IS_OURS
+#undef YY_DECL_IS_OURS
+#undef YY_DECL
+#endif
+
+#ifndef yy_create_buffer_ALREADY_DEFINED
+#undef yy_create_buffer
+#endif
+#ifndef yy_delete_buffer_ALREADY_DEFINED
+#undef yy_delete_buffer
+#endif
+#ifndef yy_scan_buffer_ALREADY_DEFINED
+#undef yy_scan_buffer
+#endif
+#ifndef yy_scan_string_ALREADY_DEFINED
+#undef yy_scan_string
+#endif
+#ifndef yy_scan_bytes_ALREADY_DEFINED
+#undef yy_scan_bytes
+#endif
+#ifndef yy_init_buffer_ALREADY_DEFINED
+#undef yy_init_buffer
+#endif
+#ifndef yy_flush_buffer_ALREADY_DEFINED
+#undef yy_flush_buffer
+#endif
+#ifndef yy_load_buffer_state_ALREADY_DEFINED
+#undef yy_load_buffer_state
+#endif
+#ifndef yy_switch_to_buffer_ALREADY_DEFINED
+#undef yy_switch_to_buffer
+#endif
+#ifndef yypush_buffer_state_ALREADY_DEFINED
+#undef yypush_buffer_state
+#endif
+#ifndef yypop_buffer_state_ALREADY_DEFINED
+#undef yypop_buffer_state
+#endif
+#ifndef yyensure_buffer_stack_ALREADY_DEFINED
+#undef yyensure_buffer_stack
+#endif
+#ifndef yylex_ALREADY_DEFINED
+#undef yylex
+#endif
+#ifndef yyrestart_ALREADY_DEFINED
+#undef yyrestart
+#endif
+#ifndef yylex_init_ALREADY_DEFINED
+#undef yylex_init
+#endif
+#ifndef yylex_init_extra_ALREADY_DEFINED
+#undef yylex_init_extra
+#endif
+#ifndef yylex_destroy_ALREADY_DEFINED
+#undef yylex_destroy
+#endif
+#ifndef yyget_debug_ALREADY_DEFINED
+#undef yyget_debug
+#endif
+#ifndef yyset_debug_ALREADY_DEFINED
+#undef yyset_debug
+#endif
+#ifndef yyget_extra_ALREADY_DEFINED
+#undef yyget_extra
+#endif
+#ifndef yyset_extra_ALREADY_DEFINED
+#undef yyset_extra
+#endif
+#ifndef yyget_in_ALREADY_DEFINED
+#undef yyget_in
+#endif
+#ifndef yyset_in_ALREADY_DEFINED
+#undef yyset_in
+#endif
+#ifndef yyget_out_ALREADY_DEFINED
+#undef yyget_out
+#endif
+#ifndef yyset_out_ALREADY_DEFINED
+#undef yyset_out
+#endif
+#ifndef yyget_leng_ALREADY_DEFINED
+#undef yyget_leng
+#endif
+#ifndef yyget_text_ALREADY_DEFINED
+#undef yyget_text
+#endif
+#ifndef yyget_lineno_ALREADY_DEFINED
+#undef yyget_lineno
+#endif
+#ifndef yyset_lineno_ALREADY_DEFINED
+#undef yyset_lineno
+#endif
+#ifndef yyget_column_ALREADY_DEFINED
+#undef yyget_column
+#endif
+#ifndef yyset_column_ALREADY_DEFINED
+#undef yyset_column
+#endif
+#ifndef yywrap_ALREADY_DEFINED
+#undef yywrap
+#endif
+#ifndef yyget_lval_ALREADY_DEFINED
+#undef yyget_lval
+#endif
+#ifndef yyset_lval_ALREADY_DEFINED
+#undef yyset_lval
+#endif
+#ifndef yyget_lloc_ALREADY_DEFINED
+#undef yyget_lloc
+#endif
+#ifndef yyset_lloc_ALREADY_DEFINED
+#undef yyset_lloc
+#endif
+#ifndef yyalloc_ALREADY_DEFINED
+#undef yyalloc
+#endif
+#ifndef yyrealloc_ALREADY_DEFINED
+#undef yyrealloc
+#endif
+#ifndef yyfree_ALREADY_DEFINED
+#undef yyfree
+#endif
+#ifndef yytext_ALREADY_DEFINED
+#undef yytext
+#endif
+#ifndef yyleng_ALREADY_DEFINED
+#undef yyleng
+#endif
+#ifndef yyin_ALREADY_DEFINED
+#undef yyin
+#endif
+#ifndef yyout_ALREADY_DEFINED
+#undef yyout
+#endif
+#ifndef yy_flex_debug_ALREADY_DEFINED
+#undef yy_flex_debug
+#endif
+#ifndef yylineno_ALREADY_DEFINED
+#undef yylineno
+#endif
+#ifndef yytables_fload_ALREADY_DEFINED
+#undef yytables_fload
+#endif
+#ifndef yytables_destroy_ALREADY_DEFINED
+#undef yytables_destroy
+#endif
+#ifndef yyTABLES_NAME_ALREADY_DEFINED
+#undef yyTABLES_NAME
+#endif
+
+#line 49 "/home/vanilla/projects/blog-static/code/compiler/13/scanner.l"
+
+
+#line 490 "scanner.hpp"
+#undef yyIN_HEADER
+#endif /* yyHEADER_H */

13/scanner.l

@@ -9,38 +9,41 @@
 #include "parse_driver.hpp"
 #include "parser.hpp"
 
-#define YY_USER_ACTION drv.write(yytext, yyleng); drv.location.step(); drv.location.columns(yyleng); 
+#define YY_USER_ACTION \
+    drv.get_file_manager().write(yytext, yyleng); \
+    LOC.step(); LOC.columns(yyleng); 
+#define LOC drv.get_current_location()
 %}
 
 %%
 
-\n { drv.location.lines(); drv.mark_line(); }
+\n { drv.get_current_location().lines(); drv.get_file_manager().mark_line(); }
 [ ]+ {}
-\\ { return yy::parser::make_BACKSLASH(drv.location); }
+\\ { return yy::parser::make_BACKSLASH(LOC); }
-\+ { return yy::parser::make_PLUS(drv.location); }
+\+ { return yy::parser::make_PLUS(LOC); }
-\* { return yy::parser::make_TIMES(drv.location); }
+\* { return yy::parser::make_TIMES(LOC); }
-- { return yy::parser::make_MINUS(drv.location); }
+- { return yy::parser::make_MINUS(LOC); }
-\/ { return yy::parser::make_DIVIDE(drv.location); }
+\/ { return yy::parser::make_DIVIDE(LOC); }
-% { return yy::parser::make_MODULO(drv.location); }
+% { return yy::parser::make_MODULO(LOC); }
-== { return yy::parser::make_EQUALS(drv.location); }
+== { return yy::parser::make_EQUALS(LOC); }
-\<= { return yy::parser::make_LESS_EQUALS(drv.location); }
+\<= { return yy::parser::make_LESS_EQUALS(LOC); }
-` { return yy::parser::make_BACKTICK(drv.location); }
+` { return yy::parser::make_BACKTICK(LOC); }
-[0-9]+ { return yy::parser::make_INT(atoi(yytext), drv.location); }
+[0-9]+ { return yy::parser::make_INT(atoi(yytext), LOC); }
-defn { return yy::parser::make_DEFN(drv.location); }
+defn { return yy::parser::make_DEFN(LOC); }
-data { return yy::parser::make_DATA(drv.location); }
+data { return yy::parser::make_DATA(LOC); }
-case { return yy::parser::make_CASE(drv.location); }
+case { return yy::parser::make_CASE(LOC); }
-of { return yy::parser::make_OF(drv.location); }
+of { return yy::parser::make_OF(LOC); }
-let { return yy::parser::make_LET(drv.location); }
+let { return yy::parser::make_LET(LOC); }
-in { return yy::parser::make_IN(drv.location); }
+in { return yy::parser::make_IN(LOC); }
-\{ { return yy::parser::make_OCURLY(drv.location); }
+\{ { return yy::parser::make_OCURLY(LOC); }
-\} { return yy::parser::make_CCURLY(drv.location); }
+\} { return yy::parser::make_CCURLY(LOC); }
-\( { return yy::parser::make_OPAREN(drv.location); }
+\( { return yy::parser::make_OPAREN(LOC); }
-\) { return yy::parser::make_CPAREN(drv.location); }
+\) { return yy::parser::make_CPAREN(LOC); }
-,  { return yy::parser::make_COMMA(drv.location); }
+,  { return yy::parser::make_COMMA(LOC); }
--> { return yy::parser::make_ARROW(drv.location); }
+-> { return yy::parser::make_ARROW(LOC); }
-= { return yy::parser::make_EQUAL(drv.location); }
+= { return yy::parser::make_EQUAL(LOC); }
-[a-z][a-zA-Z]* { return yy::parser::make_LID(std::string(yytext), drv.location); }
+[a-z][a-zA-Z]* { return yy::parser::make_LID(std::string(yytext), LOC); }
-[A-Z][a-zA-Z]* { return yy::parser::make_UID(std::string(yytext), drv.location); }
+[A-Z][a-zA-Z]* { return yy::parser::make_UID(std::string(yytext), LOC); }
-<<EOF>> { return yy::parser::make_YYEOF(drv.location); }
+<<EOF>> { return yy::parser::make_YYEOF(LOC); }
 
 %%

13/type_env.cpp

@@ -44,8 +44,7 @@ void type_env::set_mangled_name(const std::string& name, const std::string& mang
 
 const std::string& type_env::get_mangled_name(const std::string& name) const {
     auto it = names.find(name);
-    if(it != names.end())
+    if(it != names.end()) return it->second.mangled_name;
-        return (it->second.mangled_name != "") ? it->second.mangled_name : name;
     assert(parent != nullptr);
     return parent->get_mangled_name(name);
 }