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This commit is contained in:
Oliver Stene
2026-02-08 20:26:11 +01:00
parent 6f03e2203f
commit b31a2d01c6
3 changed files with 50 additions and 15 deletions
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39
compiler/Compiler/Generator.cs
View File

@@ -185,10 +185,11 @@ public sealed class Generator(List<NodeDefinition> nodes)
return node switch
{
NodeExpressionBinary expression => EmitExpressionBinary(expression),
NodeExpressionUnary expression => EmitExpressionUnary(expression),
NodeExpressionBoolLiteral expression => expression.Value.Value ? "true" : "false",
NodeExpressionIntLiteral expression => expression.Value.Value.ToString(),
NodeExpressionStringLiteral expression => $"(struct string){{ \"{expression.Value.Value}\", {expression.Value.Value.Length} }}",
NodeExpressionStructLiteral expression => EmitStructLiteral(expression),
NodeExpressionStructLiteral expression => EmitExpressionStructLiteral(expression),
NodeExpressionMemberAccess expression => EmitExpressionMemberAccess(expression),
NodeExpressionIdent expression => expression.Value.Ident,
_ => throw new ArgumentOutOfRangeException(nameof(node), node, null)
@@ -221,23 +222,19 @@ public sealed class Generator(List<NodeDefinition> nodes)
};
}
private static string CType(NodeType node, string? varName = null)
private string EmitExpressionUnary(NodeExpressionUnary expression)
{
return node switch
var target = EmitExpression(expression.Target);
return expression.Operation switch
{
NodeTypeVoid => "void" + (varName != null ? $" {varName}" : ""),
NodeTypeBool => "bool" + (varName != null ? $" {varName}" : ""),
NodeTypeCustom type => $"struct {type.Name.Ident}" + (varName != null ? $" {varName}" : ""),
NodeTypeSInt type => $"int{type.Width}_t" + (varName != null ? $" {varName}" : ""),
NodeTypeUInt type => $"uint{type.Width}_t" + (varName != null ? $" {varName}" : ""),
NodeTypePointer type => CType(type.To) + (varName != null ? $" *{varName}" : "*"),
NodeTypeString => "struct string" + (varName != null ? $" {varName}" : ""),
NodeTypeFunc type => $"{CType(type.ReturnType)} (*{varName})({string.Join(", ", type.Parameters.Select(p => CType(p)))})",
_ => throw new ArgumentOutOfRangeException(nameof(node), node, null)
NodeExpressionUnary.Op.Negate => $"(-{target})",
NodeExpressionUnary.Op.Invert => $"(!{target})",
_ => throw new ArgumentOutOfRangeException()
};
}
private string EmitStructLiteral(NodeExpressionStructLiteral expression)
private string EmitExpressionStructLiteral(NodeExpressionStructLiteral expression)
{
var initializerValues = new Dictionary<string, string>();
@@ -257,6 +254,22 @@ public sealed class Generator(List<NodeDefinition> nodes)
var target = EmitExpression(expression.Target);
return $"{target}.{expression.Name.Ident}";
}
private static string CType(NodeType node, string? varName = null)
{
return node switch
{
NodeTypeVoid => "void" + (varName != null ? $" {varName}" : ""),
NodeTypeBool => "bool" + (varName != null ? $" {varName}" : ""),
NodeTypeCustom type => $"struct {type.Name.Ident}" + (varName != null ? $" {varName}" : ""),
NodeTypeSInt type => $"int{type.Width}_t" + (varName != null ? $" {varName}" : ""),
NodeTypeUInt type => $"uint{type.Width}_t" + (varName != null ? $" {varName}" : ""),
NodeTypePointer type => CType(type.To) + (varName != null ? $" *{varName}" : "*"),
NodeTypeString => "struct string" + (varName != null ? $" {varName}" : ""),
NodeTypeFunc type => $"{CType(type.ReturnType)} (*{varName})({string.Join(", ", type.Parameters.Select(p => CType(p)))})",
_ => throw new ArgumentOutOfRangeException(nameof(node), node, null)
};
}
}
internal class IndentedTextWriter

23
compiler/Compiler/Parser.cs
View File

@@ -208,6 +208,16 @@ public sealed class Parser(string fileName, List<Token> tokens)
ExpectSymbol(Symbol.CloseParen);
expr = value;
}
else if (TryExpectSymbol(Symbol.Minus))
{
var target = ParseExpression();
expr = new NodeExpressionUnary(TokensFrom(startIndex), target, NodeExpressionUnary.Op.Negate);
}
else if (TryExpectSymbol(Symbol.Bang))
{
var target = ParseExpression();
expr = new NodeExpressionUnary(TokensFrom(startIndex), target, NodeExpressionUnary.Op.Invert);
}
else if (TryExpectIntLiteral(out var intLiteral))
{
expr = new NodeExpressionIntLiteral(TokensFrom(startIndex), intLiteral);
@@ -617,7 +627,6 @@ public sealed class NodeExpressionBinary(List<Token> tokens, NodeExpression left
public readonly Op Operation = operation;
public readonly NodeExpression Right = right;
public enum Op
{
Add,
@@ -645,6 +654,18 @@ public sealed class NodeExpressionBinary(List<Token> tokens, NodeExpression left
}
}
public sealed class NodeExpressionUnary(List<Token> tokens, NodeExpression target, NodeExpressionUnary.Op op) : NodeExpression(tokens)
{
public NodeExpression Target { get; } = target;
public Op Operation { get; } = op;
public enum Op
{
Negate,
Invert,
}
}
public abstract class NodeType(List<Token> tokens) : Node(tokens);
public sealed class NodeTypeVoid(List<Token> tokens) : NodeType(tokens);

3
compiler/Compiler/test.nub
View File

@@ -7,8 +7,9 @@ func main(): i32 {
let x: i32 = 23
x = 24
if true {
if !true {
x = 49
return x
} else {
x = 3
}