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nub31
2025-05-04 16:02:48 +02:00
parent 248f95fa6e
commit 5f2d1ff3f9
25 changed files with 264 additions and 539 deletions
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3
build.sh
View File

@@ -7,9 +7,8 @@ gcc -c -g -fno-stack-protector -fno-builtin std/baseline/gc.c -o out/gc.o
nasm -g -felf64 std/baseline/str_cmp.asm -o out/str_cmp.o
nasm -g -felf64 std/core/str_len.asm -o out/str_len.o
nasm -g -felf64 std/core/arr_size.asm -o out/arr_size.o
nasm -g -felf64 std/core/itoa.asm -o out/itoa.o
nasm -g -felf64 out/out.asm -o out/out.o
gcc -no-pie -nostartfiles -o out/program out/gc.o out/str_cmp.o out/str_len.o out/arr_size.o out/itoa.o out/out.o
gcc -no-pie -nostartfiles -o out/program out/gc.o out/str_cmp.o out/str_len.o out/itoa.o out/out.o

1
example/core/array.nub
View File

@@ -1 +0,0 @@
extern func arr_size(array: Array<Any>): int64;

20
example/core/print.nub
View File

@@ -2,16 +2,16 @@ let SYS_WRITE = 1;
let STD_OUT = 1;
let STD_ERR = 2;
func print(msg: String) {
func print(msg: string) {
syscall(SYS_WRITE, STD_OUT, msg, str_len(msg));
}
func print(value1: int64) {
print(itoa(value1));
func print(value: int64) {
print(itoa(value));
}
func print(value2: bool) {
if value2 {
func print(value: bool) {
if value {
print("true");
} else {
print("false");
@@ -22,17 +22,17 @@ func println() {
print("\n");
}
func println(msg: String) {
func println(msg: string) {
print(msg);
println();
}
func println(value3: bool) {
print(value3);
func println(value: bool) {
print(value);
println();
}
func println(value4: int64) {
print(value4);
func println(value: int64) {
print(value);
println();
}

4
example/core/string.nub
View File

@@ -1,2 +1,2 @@
extern func str_len(msg: String): int64;
extern func itoa(value: int64): String;
extern func str_len(msg: string): int64;
extern func itoa(value: int64): string;

13
example/program.nub
View File

@@ -1,16 +1,5 @@
import "core";
struct Human {
let name: String;
let age: int64;
}
func main() {
while true {
let x = new Human
{
name = "test",
age = 34958743
};
}
println("test");
}

1
lang/.idea/.idea.Nub.Lang/.idea/indexLayout.xml generated
View File

@@ -2,6 +2,7 @@
<project version="4">
<component name="UserContentModel">
<attachedFolders>
<Path>../example</Path>
<Path>../std</Path>
</attachedFolders>
<explicitIncludes />

293
lang/Nub.Lang/Backend/Custom/Generator.cs
View File

@@ -6,7 +6,6 @@ namespace Nub.Lang.Backend.Custom;
public class Generator
{
private const string Entrypoint = "main";
private const bool ZeroBasedIndexing = false;
private readonly List<DefinitionNode> _definitions;
private readonly SymbolTable _symbolTable;
@@ -129,17 +128,20 @@ public class Generator
}
case LiteralNode literal:
{
if (literal.Type is not PrimitiveType primitiveType)
if (literal.LiteralType.Equals(NubType.Int64)
|| literal.LiteralType.Equals(NubType.Int32)
|| literal.LiteralType.Equals(NubType.Int16)
|| literal.LiteralType.Equals(NubType.Int8))
{
throw new NotSupportedException("Global variable literals must be of a primitive type");
return literal.Literal;
}
return primitiveType.Kind switch
if (literal.LiteralType.Equals(NubType.Bool))
{
PrimitiveTypeKind.Bool => bool.Parse(literal.Literal) ? "1" : "0",
PrimitiveTypeKind.Int64 or PrimitiveTypeKind.Int32 => $"{literal.Literal}",
_ => throw new ArgumentOutOfRangeException()
};
return bool.Parse(literal.Literal) ? "1" : "0";
}
throw new InvalidOperationException("BAD");
}
default:
{
@@ -194,9 +196,6 @@ public class Generator
{
switch (statement)
{
case ArrayIndexAssignmentNode arrayIndexAssignment:
GenerateArrayIndexAssignment(arrayIndexAssignment, func);
break;
case BreakNode:
GenerateBreak();
break;
@@ -239,15 +238,6 @@ public class Generator
_builder.AppendLine($" jmp {_loops.Peek().StartLabel}");
}
private void GenerateArrayIndexAssignment(ArrayIndexAssignmentNode arrayIndexAssignment, LocalFunc func)
{
GenerateExpression(arrayIndexAssignment.Value, func);
_builder.AppendLine(" push rax");
GenerateArrayIndexPointerAccess(arrayIndexAssignment.Identifier, arrayIndexAssignment.Index, func);
_builder.AppendLine(" pop rdx");
_builder.AppendLine(" mov [rax], rdx");
}
private void GenerateIf(IfNode ifStatement, LocalFunc func)
{
var endLabel = _labelFactory.Create();
@@ -319,12 +309,6 @@ public class Generator
{
switch (expression)
{
case ArrayIndexAccessNode arrayIndexAccess:
GenerateArrayIndexAccess(arrayIndexAccess, func);
break;
case ArrayInitializerNode arrayInitializer:
GenerateArrayInitializer(arrayInitializer);
break;
case BinaryExpressionNode binaryExpression:
GenerateBinaryExpression(binaryExpression, func);
break;
@@ -355,31 +339,21 @@ public class Generator
{
var variable = func.ResolveLocalVariable(structMemberAccessor.Members[0]);
if (variable.Type is not StructType structType)
{
throw new Exception($"Cannot access struct member on {variable} since it is not a struct type");
}
_builder.AppendLine($" mov rax, [rbp - {variable.Offset}]");
Type prevMemberType = structType;
var prevMemberType = variable.Type;
for (var i = 1; i < structMemberAccessor.Members.Count; i++)
{
if (prevMemberType is not StructType prevMemberStructType)
{
throw new Exception($"Cannot access {structMemberAccessor.Members[i]} on type {prevMemberType} because it is not a struct type");
}
var structDefinition = _definitions.OfType<StructDefinitionNode>().FirstOrDefault(sd => sd.Name == prevMemberStructType.Name);
var structDefinition = _definitions.OfType<StructDefinitionNode>().FirstOrDefault(sd => sd.Name == prevMemberType.Name);
if (structDefinition == null)
{
throw new Exception($"Struct {prevMemberStructType} is not defined");
throw new Exception($"Struct {prevMemberType} is not defined");
}
var member = structDefinition.Members.FirstOrDefault(m => m.Name == structMemberAccessor.Members[i]);
if (member == null)
{
throw new Exception($"Struct {prevMemberStructType} has no member with name {structMemberAccessor.Members[i]}");
throw new Exception($"Struct {prevMemberType} has no member with name {structMemberAccessor.Members[i]}");
}
var offset = structDefinition.Members.IndexOf(member);
@@ -389,19 +363,6 @@ public class Generator
}
}
private void GenerateArrayIndexAccess(ArrayIndexAccessNode arrayIndexAccess, LocalFunc func)
{
GenerateArrayIndexPointerAccess(arrayIndexAccess.Identifier, arrayIndexAccess.Index, func);
_builder.AppendLine(" mov rax, [rax]");
}
private void GenerateArrayInitializer(ArrayInitializerNode arrayInitializer)
{
_builder.AppendLine($" mov rdi, {8 + arrayInitializer.Length * 8}");
_builder.AppendLine(" call gc_alloc");
_builder.AppendLine($" mov qword [rax], {arrayInitializer.Length}");
}
private void GenerateBinaryExpression(BinaryExpressionNode binaryExpression, LocalFunc func)
{
GenerateExpression(binaryExpression.Left, func);
@@ -459,108 +420,121 @@ public class Generator
}
}
private void GenerateComparison(Type type)
private void GenerateComparison(NubType type)
{
switch (type)
if (type.Equals(NubType.String))
{
case AnyType:
throw new InvalidOperationException($"Cannot compare type {type}");
case ArrayType:
// compare pointers
_builder.AppendLine(" cmp rax, rcx");
break;
case PrimitiveType:
_builder.AppendLine(" cmp rax, rcx");
break;
case StringType:
_builder.AppendLine(" mov rdi, rax");
_builder.AppendLine(" mov rsi, rcx");
_builder.AppendLine(" call str_cmp");
break;
default:
throw new ArgumentOutOfRangeException(nameof(type));
_builder.AppendLine(" mov rdi, rax");
_builder.AppendLine(" mov rsi, rcx");
_builder.AppendLine(" call str_cmp");
}
else if (type.Equals(NubType.Bool) || type.Equals(NubType.Int64) || type.Equals(NubType.Int32) || type.Equals(NubType.Int16) || type.Equals(NubType.Int8))
{
_builder.AppendLine(" cmp rax, rcx");
}
else
{
throw new ArgumentOutOfRangeException(nameof(type));
}
}
private void GenerateBinaryAddition(Type type)
private void GenerateBinaryAddition(NubType type)
{
if (type is not PrimitiveType primitiveType)
if (type.Equals(NubType.Int64))
{
throw new InvalidOperationException("Addition can only be done on primitive types");
_builder.AppendLine(" add rax, rcx");
}
switch (primitiveType.Kind)
else if (type.Equals(NubType.Int32))
{
case PrimitiveTypeKind.Int64:
_builder.AppendLine(" add rax, rcx");
break;
case PrimitiveTypeKind.Int32:
_builder.AppendLine(" add eax, ecx");
break;
default:
throw new InvalidOperationException($"Invalid type {primitiveType.Kind}");
_builder.AppendLine(" add eax, ecx");
}
else if (type.Equals(NubType.Int16))
{
_builder.AppendLine(" add ax, cx");
}
else if (type.Equals(NubType.Int8))
{
_builder.AppendLine(" add al, cl");
}
else
{
throw new InvalidOperationException($"Invalid type for addition {type}");
}
}
private void GenerateBinarySubtraction(Type type)
private void GenerateBinarySubtraction(NubType type)
{
if (type is not PrimitiveType primitiveType)
if (type.Equals(NubType.Int64))
{
throw new InvalidOperationException("Subtraction can only be done on primitive types");
_builder.AppendLine(" sub rax, rcx");
}
switch (primitiveType.Kind)
else if (type.Equals(NubType.Int32))
{
case PrimitiveTypeKind.Int64:
_builder.AppendLine(" sub rax, rcx");
break;
case PrimitiveTypeKind.Int32:
_builder.AppendLine(" sub eax, ecx");
break;
default:
throw new InvalidOperationException($"Invalid type {primitiveType.Kind}");
_builder.AppendLine(" sub eax, ecx");
}
else if (type.Equals(NubType.Int16))
{
_builder.AppendLine(" sub ax, cx");
}
else if (type.Equals(NubType.Int8))
{
_builder.AppendLine(" sub al, cl");
}
else
{
throw new InvalidOperationException($"Invalid type for subtraction {type}");
}
}
private void GenerateBinaryMultiplication(Type type)
private void GenerateBinaryMultiplication(NubType type)
{
if (type is not PrimitiveType primitiveType)
if (type.Equals(NubType.Int64))
{
throw new InvalidOperationException("Multiplication can only be done on primitive types");
_builder.AppendLine(" imul rcx");
}
switch (primitiveType.Kind)
else if (type.Equals(NubType.Int32))
{
case PrimitiveTypeKind.Int64:
_builder.AppendLine(" imul rcx");
break;
case PrimitiveTypeKind.Int32:
_builder.AppendLine(" imul ecx");
break;
default:
throw new InvalidOperationException($"Invalid type {primitiveType.Kind}");
_builder.AppendLine(" imul ecx");
}
else if (type.Equals(NubType.Int16))
{
_builder.AppendLine(" imul cx");
}
else if (type.Equals(NubType.Int8))
{
_builder.AppendLine(" imul cl");
}
else
{
throw new InvalidOperationException($"Invalid type for multiplication {type}");
}
}
private void GenerateBinaryDivision(Type type)
private void GenerateBinaryDivision(NubType type)
{
if (type is not PrimitiveType primitiveType)
if (type.Equals(NubType.Int64))
{
throw new InvalidOperationException("Division can only be done on primitive types");
_builder.AppendLine(" cqo");
_builder.AppendLine(" idiv rcx");
}
switch (primitiveType.Kind)
else if (type.Equals(NubType.Int32))
{
case PrimitiveTypeKind.Int64:
_builder.AppendLine(" cqo");
_builder.AppendLine(" idiv rcx");
break;
case PrimitiveTypeKind.Int32:
_builder.AppendLine(" cdq");
_builder.AppendLine(" idiv ecx");
break;
default:
throw new InvalidOperationException($"Invalid type {primitiveType.Kind}");
_builder.AppendLine(" cdq");
_builder.AppendLine(" idiv ecx");
}
else if (type.Equals(NubType.Int16))
{
_builder.AppendLine(" cwd");
_builder.AppendLine(" idiv cx");
}
else if (type.Equals(NubType.Int8))
{
_builder.AppendLine(" cbw");
_builder.AppendLine(" idiv cl");
}
else
{
throw new InvalidOperationException($"Invalid type for division {type}");
}
}
@@ -586,34 +560,22 @@ public class Generator
private void GenerateLiteral(LiteralNode literal)
{
switch (literal.Type)
if (literal.Type.Equals(NubType.String))
{
case StringType:
{
var label = _symbolTable.DefineString(literal.Literal);
_builder.AppendLine($" mov rax, {label}");
break;
}
case PrimitiveType primitive:
{
switch (primitive.Kind)
{
case PrimitiveTypeKind.Bool:
_builder.AppendLine($" mov rax, {(bool.Parse(literal.Literal) ? "1" : "0")}");
break;
case PrimitiveTypeKind.Int64:
_builder.AppendLine($" mov rax, {literal.Literal}");
break;
case PrimitiveTypeKind.Int32:
_builder.AppendLine($" mov rax, {literal.Literal}");
break;
default:
throw new Exception("Cannot convert literal to string");
}
break;
}
default:
throw new ArgumentOutOfRangeException();
var label = _symbolTable.DefineString(literal.Literal);
_builder.AppendLine($" mov rax, {label}");
}
else if (literal.Type.Equals(NubType.Int64) || literal.Type.Equals(NubType.Int32) || literal.Type.Equals(NubType.Int16) || literal.Type.Equals(NubType.Int8))
{
_builder.AppendLine($" mov rax, {literal.Literal}");
}
else if (literal.Type.Equals(NubType.Bool))
{
_builder.AppendLine($" mov rax, {(bool.Parse(literal.Literal) ? "1" : "0")}");
}
else
{
throw new NotImplementedException($"Literal type {literal.Type} not implemented");
}
}
@@ -706,31 +668,4 @@ public class Generator
_builder.AppendLine(" syscall");
}
private void GenerateArrayIndexPointerAccess(IdentifierNode identifier, ExpressionNode index, LocalFunc func)
{
GenerateExpression(index, func);
_builder.AppendLine(" push rax");
GenerateIdentifier(identifier, func);
_builder.AppendLine(" pop rdx");
// rcx now holds the length of the array which we can use to check bounds
_builder.AppendLine(" mov rcx, [rax]");
_builder.AppendLine(" cmp rdx, rcx");
if (ZeroBasedIndexing)
{
_builder.AppendLine(" jge eb6e_oob_error");
_builder.AppendLine(" cmp rdx, 0");
}
else
{
_builder.AppendLine(" jg eb6e_oob_error");
_builder.AppendLine(" cmp rdx, 1");
}
_builder.AppendLine(" jl eb6e_oob_error");
_builder.AppendLine(" inc rdx");
_builder.AppendLine(" shl rdx, 3");
_builder.AppendLine(" add rax, rdx");
}
}

26
lang/Nub.Lang/Backend/Custom/SymbolTable.cs
View File

@@ -118,7 +118,7 @@ public class SymbolTable
return offset;
}
public Func ResolveFunc(string name, List<Type> parameterTypes)
public Func ResolveFunc(string name, List<NubType> parameterTypes)
{
var func = _funcDefinitions.FirstOrDefault(f => f.SignatureMatches(name, parameterTypes));
if (func == null)
@@ -129,7 +129,7 @@ public class SymbolTable
return func;
}
public LocalFunc ResolveLocalFunc(string name, List<Type> parameterTypes)
public LocalFunc ResolveLocalFunc(string name, List<NubType> parameterTypes)
{
var func = ResolveFunc(name, parameterTypes);
if (func is not LocalFunc localFunc)
@@ -139,7 +139,7 @@ public class SymbolTable
return localFunc;
}
public ExternFunc ResolveExternFunc(string name, List<Type> parameterTypes)
public ExternFunc ResolveExternFunc(string name, List<NubType> parameterTypes)
{
var func = ResolveFunc(name, parameterTypes);
if (func is not ExternFunc externFunc)
@@ -161,27 +161,27 @@ public class SymbolTable
}
}
public abstract class Variable(string name, Type type)
public abstract class Variable(string name, NubType type)
{
public string Name { get; } = name;
public Type Type { get; } = type;
public NubType Type { get; } = type;
public override string ToString() => $"{Name}: {Type}";
}
public class LocalVariable(string name, Type type, int offset) : Variable(name, type)
public class LocalVariable(string name, NubType type, int offset) : Variable(name, type)
{
public int Offset { get; } = offset;
}
public class GlobalVariable(string name, Type type, string identifier) : Variable(name, type)
public class GlobalVariable(string name, NubType type, string identifier) : Variable(name, type)
{
public string Identifier { get; } = identifier;
}
public abstract class Func
{
protected Func(string name, string startLabel, List<FuncParameter> parameters, Optional<Type> returnType)
protected Func(string name, string startLabel, List<FuncParameter> parameters, Optional<NubType> returnType)
{
Name = name;
Parameters = parameters;
@@ -192,16 +192,16 @@ public abstract class Func
public string Name { get; }
public string StartLabel { get; }
public List<FuncParameter> Parameters { get; }
public Optional<Type> ReturnType { get; }
public Optional<NubType> ReturnType { get; }
public bool SignatureMatches(string name, List<Type> parameterTypes)
public bool SignatureMatches(string name, List<NubType> parameterTypes)
{
if (Name != name) return false;
if (Parameters.Count != parameterTypes.Count) return false;
for (var i = 0; i < parameterTypes.Count; i++)
{
if (!Parameters[i].Type.IsAssignableTo(parameterTypes[i])) return false;
if (!Parameters[i].Type.Equals(parameterTypes[i])) return false;
}
return true;
@@ -212,14 +212,14 @@ public abstract class Func
public class ExternFunc : Func
{
public ExternFunc(string name, string startLabel, List<FuncParameter> parameters, Optional<Type> returnType) : base(name, startLabel, parameters, returnType)
public ExternFunc(string name, string startLabel, List<FuncParameter> parameters, Optional<NubType> returnType) : base(name, startLabel, parameters, returnType)
{
}
}
public class LocalFunc : Func
{
public LocalFunc(string name, string startLabel, string endLabel, List<FuncParameter> parameters, Optional<Type> returnType, List<Variable> variables) : base(name, startLabel, parameters, returnType)
public LocalFunc(string name, string startLabel, string endLabel, List<FuncParameter> parameters, Optional<NubType> returnType, List<Variable> variables) : base(name, startLabel, parameters, returnType)
{
EndLabel = endLabel;
Variables = variables;

6
lang/Nub.Lang/Frontend/Lexing/Lexer.cs
View File

@@ -86,7 +86,7 @@ public class Lexer
if (buffer is "true" or "false")
{
return new LiteralToken(new PrimitiveType(PrimitiveTypeKind.Bool), buffer);
return new LiteralToken(NubType.Bool, buffer);
}
return new IdentifierToken(buffer);
@@ -103,7 +103,7 @@ public class Lexer
current = Peek();
}
return new LiteralToken(new PrimitiveType(PrimitiveTypeKind.Int64), buffer);
return new LiteralToken(NubType.Int64, buffer);
}
// TODO: Revisit this
@@ -148,7 +148,7 @@ public class Lexer
buffer += current.Value;
}
return new LiteralToken(new StringType(), buffer);
return new LiteralToken(NubType.String, buffer);
}
if (char.IsWhiteSpace(current.Value))

4
lang/Nub.Lang/Frontend/Lexing/LiteralToken.cs
View File

@@ -1,7 +1,7 @@
namespace Nub.Lang.Frontend.Lexing;
public class LiteralToken(Type type, string value) : Token
public class LiteralToken(NubType type, string value) : Token
{
public Type Type { get; } = type;
public NubType Type { get; } = type;
public string Value { get; } = value;
}

9
lang/Nub.Lang/Frontend/Parsing/ArrayIndexAccessNode.cs
View File

@@ -1,9 +0,0 @@
namespace Nub.Lang.Frontend.Parsing;
public class ArrayIndexAccessNode(IdentifierNode identifier, ExpressionNode index) : ExpressionNode
{
public IdentifierNode Identifier { get; } = identifier;
public ExpressionNode Index { get; } = index;
public override string ToString() => $"{Identifier}[{Index}]";
}

8
lang/Nub.Lang/Frontend/Parsing/ArrayIndexAssignmentNode.cs
View File

@@ -1,8 +0,0 @@
namespace Nub.Lang.Frontend.Parsing;
public class ArrayIndexAssignmentNode(IdentifierNode identifier, ExpressionNode index, ExpressionNode value) : StatementNode
{
public IdentifierNode Identifier { get; } = identifier;
public ExpressionNode Index { get; } = index;
public ExpressionNode Value { get; } = value;
}

7
lang/Nub.Lang/Frontend/Parsing/ArrayInitializerNode.cs
View File

@@ -1,7 +0,0 @@
namespace Nub.Lang.Frontend.Parsing;
public class ArrayInitializerNode(long length, Type innerType) : ExpressionNode
{
public long Length { get; } = length;
public Type InnerType { get; } = innerType;
}

4
lang/Nub.Lang/Frontend/Parsing/ExpressionNode.cs
View File

@@ -2,8 +2,8 @@
public abstract class ExpressionNode : Node
{
private Type? _type;
public Type Type
private NubType? _type;
public NubType Type
{
get => _type ?? throw new Exception("Tried to access expression type before type was populated");
set => _type = value;

4
lang/Nub.Lang/Frontend/Parsing/ExternFuncDefinitionNode.cs
View File

@@ -1,10 +1,10 @@
namespace Nub.Lang.Frontend.Parsing;
public class ExternFuncDefinitionNode(string name, List<FuncParameter> parameters, Optional<Type> returnType) : DefinitionNode
public class ExternFuncDefinitionNode(string name, List<FuncParameter> parameters, Optional<NubType> returnType) : DefinitionNode
{
public string Name { get; } = name;
public List<FuncParameter> Parameters { get; } = parameters;
public Optional<Type> ReturnType { get; } = returnType;
public Optional<NubType> ReturnType { get; } = returnType;
public override string ToString() => $"{Name}({string.Join(", ", Parameters.Select(p => p.ToString()))}){(ReturnType.HasValue ? ": " + ReturnType.Value : "")}";
}

4
lang/Nub.Lang/Frontend/Parsing/LiteralNode.cs
View File

@@ -1,7 +1,7 @@
namespace Nub.Lang.Frontend.Parsing;
public class LiteralNode(string literal, Type type) : ExpressionNode
public class LiteralNode(string literal, NubType type) : ExpressionNode
{
public string Literal { get; } = literal;
public Type LiteralType { get; } = type;
public NubType LiteralType { get; } = type;
}

4
lang/Nub.Lang/Frontend/Parsing/LocalFuncDefinitionNode.cs
View File

@@ -1,11 +1,11 @@
namespace Nub.Lang.Frontend.Parsing;
public class LocalFuncDefinitionNode(string name, List<FuncParameter> parameters, BlockNode body, Optional<Type> returnType) : DefinitionNode
public class LocalFuncDefinitionNode(string name, List<FuncParameter> parameters, BlockNode body, Optional<NubType> returnType) : DefinitionNode
{
public string Name { get; } = name;
public List<FuncParameter> Parameters { get; } = parameters;
public BlockNode Body { get; } = body;
public Optional<Type> ReturnType { get; } = returnType;
public Optional<NubType> ReturnType { get; } = returnType;
public override string ToString() => $"{Name}({string.Join(", ", Parameters.Select(p => p.ToString()))}){(ReturnType.HasValue ? ": " + ReturnType.Value : "")}";
}

119
lang/Nub.Lang/Frontend/Parsing/Parser.cs
View File

@@ -21,7 +21,7 @@ public class Parser
if (TryExpectSymbol(Symbol.Import))
{
var name = ExpectLiteral();
if (name.Type is not StringType)
if (!name.Type.Equals(NubType.String))
{
throw new Exception("Import statements must have a string literal value");
}
@@ -75,10 +75,10 @@ public class Parser
}
}
var returnType = Optional<Type>.Empty();
var returnType = Optional<NubType>.Empty();
if (TryExpectSymbol(Symbol.Colon))
{
returnType = ParseType();
returnType = ParseTypeInstance();
}
var body = ParseBlock();
@@ -101,10 +101,10 @@ public class Parser
}
}
var returnType = Optional<Type>.Empty();
var returnType = Optional<NubType>.Empty();
if (TryExpectSymbol(Symbol.Colon))
{
returnType = ParseType();
returnType = ParseTypeInstance();
}
ExpectSymbol(Symbol.Semicolon);
@@ -122,10 +122,9 @@ public class Parser
while (!TryExpectSymbol(Symbol.CloseBrace))
{
ExpectSymbol(Symbol.Let);
var variableName = ExpectIdentifier().Value;
ExpectSymbol(Symbol.Colon);
var variableType = ParseType();
var variableType = ParseTypeInstance();
var variableValue = Optional<ExpressionNode>.Empty();
@@ -146,7 +145,7 @@ public class Parser
{
var name = ExpectIdentifier();
ExpectSymbol(Symbol.Colon);
var type = ParseType();
var type = ParseTypeInstance();
return new FuncParameter(name.Value, type);
}
@@ -179,15 +178,6 @@ public class Parser
return new FuncCallStatementNode(new FuncCall(identifier.Value, parameters));
}
case Symbol.OpenBracket:
{
var index = ParseExpression();
ExpectSymbol(Symbol.CloseBracket);
ExpectSymbol(Symbol.Assign);
var value = ParseExpression();
ExpectSymbol(Symbol.Semicolon);
return new ArrayIndexAssignmentNode(new IdentifierNode(identifier.Value), index, value);
}
case Symbol.Assign:
{
var value = ParseExpression();
@@ -284,7 +274,8 @@ public class Parser
while (true)
{
var token = Peek();
if (!token.HasValue || token.Value is not SymbolToken symbolToken || !TryGetBinaryOperator(symbolToken.Symbol, out var op) || GetBinaryOperatorPrecedence(op.Value) < precedence)
if (!token.HasValue || token.Value is not SymbolToken symbolToken || !TryGetBinaryOperator(symbolToken.Symbol, out var op) ||
GetBinaryOperatorPrecedence(op.Value) < precedence)
break;
Next();
@@ -360,9 +351,13 @@ public class Parser
switch (token)
{
case LiteralToken literal:
{
return new LiteralNode(literal.Value, literal.Type);
}
case IdentifierToken identifier:
{
return ParseExpressionIdentifier(identifier);
}
case SymbolToken symbolToken:
{
switch (symbolToken.Symbol)
@@ -375,39 +370,19 @@ public class Parser
}
case Symbol.New:
{
var type = ParseType();
switch (type)
var type = ParseTypeInstance();
Dictionary<string, ExpressionNode> initializers = [];
ExpectSymbol(Symbol.OpenBrace);
while (!TryExpectSymbol(Symbol.CloseBrace))
{
case ArrayType:
{
ExpectSymbol(Symbol.OpenParen);
var size = ExpectLiteral();
if (size.Type is not PrimitiveType { Kind: PrimitiveTypeKind.Int64 })
{
throw new Exception($"Array initializer size must be an {PrimitiveTypeKind.Int64}");
}
ExpectSymbol(Symbol.CloseParen);
return new ArrayInitializerNode(long.Parse(size.Value), type);
}
case StructType structType:
{
Dictionary<string, ExpressionNode> initializers = [];
ExpectSymbol(Symbol.OpenBrace);
while (!TryExpectSymbol(Symbol.CloseBrace))
{
var name = ExpectIdentifier().Value;
ExpectSymbol(Symbol.Assign);
var value = ParseExpression();
TryExpectSymbol(Symbol.Comma);
initializers.Add(name, value);
}
return new StructInitializerNode(structType, initializers);
}
default:
throw new Exception($"Type {type} cannot be initialized with the new keyword");
var name = ExpectIdentifier().Value;
ExpectSymbol(Symbol.Assign);
var value = ParseExpression();
TryExpectSymbol(Symbol.Semicolon);
initializers.Add(name, value);
}
return new StructInitializerNode(type, initializers);
}
default:
throw new Exception($"Unknown symbol: {symbolToken.Symbol}");
@@ -448,13 +423,6 @@ public class Parser
return new StructMemberAccessorNode(members);
}
case Symbol.OpenBracket:
{
Next();
var index = ParseExpression();
ExpectSymbol(Symbol.CloseBracket);
return new ArrayIndexAccessNode(new IdentifierNode(identifier.Value), index);
}
case Symbol.OpenParen:
{
Next();
@@ -473,6 +441,7 @@ public class Parser
return new FuncCallExpressionNode(new FuncCall(identifier.Value, parameters));
}
}
break;
}
}
@@ -492,36 +461,22 @@ public class Parser
return new BlockNode(statements);
}
private Type ParseType()
private NubType ParseTypeInstance()
{
var parameters = new List<NubType>();
var name = ExpectIdentifier().Value;
switch (name)
{
case "String":
{
return new StringType();
}
case "Array":
{
ExpectSymbol(Symbol.LessThan);
var innerType = ParseType();
ExpectSymbol(Symbol.GreaterThan);
return new ArrayType(innerType);
}
case "Any":
{
return new AnyType();
}
default:
{
if (PrimitiveType.TryParse(name, out var primitiveType))
{
return primitiveType;
}
return new StructType(name);
}
if (TryExpectSymbol(Symbol.LessThan))
{
do
{
parameters.Add(ParseTypeInstance());
} while (TryExpectSymbol(Symbol.Comma));
ExpectSymbol(Symbol.GreaterThan);
}
return new NubType(name, parameters.ToArray());
}
private Token ExpectToken()

4
lang/Nub.Lang/Frontend/Parsing/StructInitializerNode.cs
View File

@@ -1,7 +1,7 @@
namespace Nub.Lang.Frontend.Parsing;
public class StructInitializerNode(StructType structType, Dictionary<string, ExpressionNode> initializers) : ExpressionNode
public class StructInitializerNode(NubType structType, Dictionary<string, ExpressionNode> initializers) : ExpressionNode
{
public StructType StructType { get; } = structType;
public NubType StructType { get; } = structType;
public Dictionary<string, ExpressionNode> Initializers { get; } = initializers;
}

66
lang/Nub.Lang/Frontend/Typing/ExpressionTyper.cs
View File

@@ -2,12 +2,12 @@
namespace Nub.Lang.Frontend.Typing;
public class Func(string name, List<FuncParameter> parameters, Optional<BlockNode> body, Optional<Type> returnType)
public class Func(string name, List<FuncParameter> parameters, Optional<BlockNode> body, Optional<NubType> returnType)
{
public string Name { get; } = name;
public List<FuncParameter> Parameters { get; } = parameters;
public Optional<BlockNode> Body { get; } = body;
public Optional<Type> ReturnType { get; } = returnType;
public Optional<NubType> ReturnType { get; } = returnType;
}
public class ExpressionTyper
@@ -96,9 +96,6 @@ public class ExpressionTyper
{
switch (statement)
{
case ArrayIndexAssignmentNode arrayIndexAssignment:
PopulateArrayIndexAssignment(arrayIndexAssignment);
break;
case BreakNode:
case ContinueNode:
break;
@@ -128,13 +125,6 @@ public class ExpressionTyper
}
}
private void PopulateArrayIndexAssignment(ArrayIndexAssignmentNode arrayIndexAssignment)
{
PopulateIdentifier(arrayIndexAssignment.Identifier);
PopulateExpression(arrayIndexAssignment.Index);
PopulateExpression(arrayIndexAssignment.Value);
}
private void PopulateFuncCallStatement(FuncCallStatementNode funcCall)
{
foreach (var parameter in funcCall.FuncCall.Parameters)
@@ -194,12 +184,6 @@ public class ExpressionTyper
{
switch (expression)
{
case ArrayIndexAccessNode arrayIndexAccess:
PopulateArrayIndexAccess(arrayIndexAccess);
break;
case ArrayInitializerNode arrayInitializer:
PopulateArrayInitializer(arrayInitializer);
break;
case BinaryExpressionNode binaryExpression:
PopulateBinaryExpression(binaryExpression);
break;
@@ -226,30 +210,6 @@ public class ExpressionTyper
}
}
private void PopulateArrayIndexAccess(ArrayIndexAccessNode arrayIndexAccess)
{
PopulateExpression(arrayIndexAccess.Index);
PopulateIdentifier(arrayIndexAccess.Identifier);
var variable = _variables.FirstOrDefault(v => v.Name == arrayIndexAccess.Identifier.Identifier);
if (variable == null)
{
throw new Exception($"Variable {arrayIndexAccess.Identifier} is not defined");
}
if (variable.Type is not ArrayType arrayType)
{
throw new Exception($"Variable {arrayIndexAccess.Identifier} is not an array type");
}
arrayIndexAccess.Type = arrayType.InnerType;
}
private void PopulateArrayInitializer(ArrayInitializerNode arrayInitializer)
{
arrayInitializer.Type = arrayInitializer.InnerType;
}
private void PopulateBinaryExpression(BinaryExpressionNode binaryExpression)
{
PopulateExpression(binaryExpression.Left);
@@ -263,7 +223,7 @@ public class ExpressionTyper
case BinaryExpressionOperator.LessThan:
case BinaryExpressionOperator.LessThanOrEqual:
{
binaryExpression.Type = new PrimitiveType(PrimitiveTypeKind.Bool);
binaryExpression.Type = new NubType("bool", []);
break;
}
case BinaryExpressionOperator.Plus:
@@ -334,12 +294,7 @@ public class ExpressionTyper
throw new Exception($"Variable {structMemberAccessor.Members[0]} is not defined");
}
if (variable.Type is not StructType variableType)
{
throw new Exception("Variable " + structMemberAccessor.Members[0] + " is not a struct");
}
var definition = _structDefinitions.FirstOrDefault(sd => sd.Name == variableType.Name);
var definition = _structDefinitions.FirstOrDefault(sd => sd.Name == variable.Type.Name);
if (definition == null)
{
throw new Exception($"Struct {structMemberAccessor.Members[0]} is not defined");
@@ -353,12 +308,7 @@ public class ExpressionTyper
throw new Exception($"Member {structMemberAccessor.Members[i]} does not exist on struct {definition.Name}");
}
if (member.Type is not StructType memberType)
{
throw new Exception($"Member {structMemberAccessor.Members[i]} on struct {definition.Name} is not a struct");
}
definition = _structDefinitions.FirstOrDefault(sd => sd.Name == memberType.Name);
definition = _structDefinitions.FirstOrDefault(sd => sd.Name == member.Type.Name);
if (definition == null)
{
throw new Exception($"Struct {structMemberAccessor.Members[i]} is not defined");
@@ -381,12 +331,12 @@ public class ExpressionTyper
PopulateExpression(parameter);
}
syscall.Type = new PrimitiveType(PrimitiveTypeKind.Int64);
syscall.Type = new NubType("int64", []);
}
private class Variable(string name, Type type)
private class Variable(string name, NubType type)
{
public string Name { get; } = name;
public Type Type { get; } = type;
public NubType Type { get; } = type;
}
}

4
lang/Nub.Lang/FuncParameter.cs
View File

@@ -1,9 +1,9 @@
namespace Nub.Lang;
public class FuncParameter(string name, Type type)
public class FuncParameter(string name, NubType type)
{
public string Name { get; } = name;
public Type Type { get; } = type;
public NubType Type { get; } = type;
public override string ToString() => $"{Name}: {Type}";
}

41
lang/Nub.Lang/NubType.cs Normal file
View File

@@ -0,0 +1,41 @@
namespace Nub.Lang;
public sealed class NubType
{
public NubType(string name, NubType[] generics)
{
Name = name;
Generics = generics;
}
public string Name { get; }
public NubType[] Generics { get; }
public static NubType Int64 => new("int64", []);
public static NubType Int32 => new("int32", []);
public static NubType Int16 => new("int16", []);
public static NubType Int8 => new("int8", []);
public static NubType Bool => new("bool", []);
public static NubType String => new("string", []);
public static NubType Array(NubType innerType) => new("array", [innerType]);
public override bool Equals(object? obj)
{
if (obj is not NubType item)
{
return false;
}
return Name.Equals(item.Name) && Generics.SequenceEqual(item.Generics);
}
public override int GetHashCode()
{
return HashCode.Combine(Name, Generics);
}
public override string ToString()
{
return $"{Name}<{string.Join(", ", Generics.Select(x => x.ToString()))}>";
}
}

4
lang/Nub.Lang/StructMember.cs
View File

@@ -2,9 +2,9 @@
namespace Nub.Lang;
public class StructMember(string name, Type type, Optional<ExpressionNode> value)
public class StructMember(string name, NubType type, Optional<ExpressionNode> value)
{
public string Name { get; } = name;
public Type Type { get; } = type;
public NubType Type { get; } = type;
public Optional<ExpressionNode> Value { get; } = value;
}

114
lang/Nub.Lang/Type.cs
View File

@@ -1,114 +0,0 @@
using System.Diagnostics.CodeAnalysis;
namespace Nub.Lang;
public abstract class Type
{
public virtual bool IsAssignableTo(Type otherType)
{
return this == otherType || otherType is AnyType;
}
public override bool Equals(object? obj)
{
if (ReferenceEquals(this, obj)) return true;
if (obj is not Type otherType) return false;
return Equals(otherType);
}
protected abstract bool Equals(Type other);
public abstract override int GetHashCode();
public static bool operator == (Type? left, Type? right)
{
if (left is null && right is null) return true;
if (left is null || right is null) return false;
return ReferenceEquals(left, right) || left.Equals(right);
}
public static bool operator !=(Type? left, Type? right) => !(left == right);
}
public class AnyType : Type
{
protected override bool Equals(Type other) => other is AnyType;
public override int GetHashCode() => nameof(AnyType).GetHashCode();
public override string ToString() => "Any";
}
public class PrimitiveType(PrimitiveTypeKind kind) : Type
{
// TODO: This should be looked at more in the future
public override bool IsAssignableTo(Type otherType)
{
if (base.IsAssignableTo(otherType)) return true;
if (otherType is PrimitiveType otherPrimitive)
{
return (Kind, otherPrimitive.Kind) switch
{
(PrimitiveTypeKind.Int32, PrimitiveTypeKind.Int64) => true,
_ => false
};
}
return false;
}
public static bool TryParse(string value, [NotNullWhen(true)] out PrimitiveType? result)
{
result = value switch
{
"bool" => new PrimitiveType(PrimitiveTypeKind.Bool),
"int64" => new PrimitiveType(PrimitiveTypeKind.Int64),
"int32" => new PrimitiveType(PrimitiveTypeKind.Int32),
_ => null
};
return result != null;
}
public PrimitiveTypeKind Kind { get; } = kind;
protected override bool Equals(Type other) => other is PrimitiveType primitiveType && Kind == primitiveType.Kind;
public override int GetHashCode() => Kind.GetHashCode();
public override string ToString() => Kind.ToString();
}
public enum PrimitiveTypeKind
{
Bool,
Int64,
Int32,
}
public class StringType : Type
{
protected override bool Equals(Type other) => other is StringType;
public override int GetHashCode() => nameof(StringType).GetHashCode();
public override string ToString() => "String";
}
public class ArrayType(Type innerType) : Type
{
public Type InnerType { get; } = innerType;
public override bool IsAssignableTo(Type otherType)
{
if (otherType is ArrayType arrayType && arrayType.InnerType.IsAssignableTo(InnerType)) return true;
return base.IsAssignableTo(otherType);
}
protected override bool Equals(Type other) => other is ArrayType at && InnerType.Equals(at.InnerType);
public override int GetHashCode() => HashCode.Combine(InnerType);
public override string ToString() => $"Array<{InnerType}>";
}
public class StructType(string name) : Type
{
public string Name { get; } = name;
protected override bool Equals(Type other) => other is StructType classType && Name == classType.Name;
public override int GetHashCode() => Name.GetHashCode();
public override string ToString() => Name;
}

6
std/core/arr_size.asm
View File

@@ -1,6 +0,0 @@
global arr_size
section .text
arr_size:
mov rax, [rdi]
ret