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Array type works with args

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This commit is contained in:
nub31
2025-05-22 19:31:11 +02:00
parent ba51daa3c0
commit f6d7cdbf58
9 changed files with 250 additions and 105 deletions
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7
src/compiler/Nub.Lang/Frontend/Parsing/ArrayIndexNode.cs Normal file
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@@ -0,0 +1,7 @@
namespace Nub.Lang.Frontend.Parsing;
public class ArrayIndexNode(ExpressionNode expression, ExpressionNode index) : ExpressionNode
{
public ExpressionNode Expression { get; } = expression;
public ExpressionNode Index { get; } = index;
}

7
src/compiler/Nub.Lang/Frontend/Parsing/MemberAccessNode.cs Normal file
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@@ -0,0 +1,7 @@
namespace Nub.Lang.Frontend.Parsing;
public class MemberAccessNode(ExpressionNode expression, string member) : ExpressionNode
{
public ExpressionNode Expression { get; } = expression;
public string Member { get; } = member;
}

52
src/compiler/Nub.Lang/Frontend/Parsing/Parser.cs
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@@ -427,17 +427,17 @@ public class Parser
if (TryExpectSymbol(Symbol.Period))
{
var structMember = ExpectIdentifier().Value;
expr = new StructFieldAccessorNode(expr, structMember);
expr = new MemberAccessNode(expr, structMember);
continue;
}
// if (TryExpectSymbol(Symbol.OpenBracket))
// {
// var index = ParseExpression();
// ExpectSymbol(Symbol.CloseBracket);
// expr = new ArrayIndexNode(expr, index);
// continue;
// }
if (TryExpectSymbol(Symbol.OpenBracket))
{
var index = ParseExpression();
ExpectSymbol(Symbol.CloseBracket);
expr = new ArrayIndexNode(expr, index);
continue;
}
break;
}
@@ -459,10 +459,25 @@ public class Parser
private NubType ParseType()
{
var pointer = TryExpectSymbol(Symbol.Caret);
var name = ExpectIdentifier().Value;
var type = NubType.Parse(name);
return pointer ? new NubPointerType(type) : type;
if (TryExpectIdentifier(out var name))
{
return NubType.Parse(name);
}
if (TryExpectSymbol(Symbol.Caret))
{
var baseType = ParseType();
return new NubPointerType(baseType);
}
if (TryExpectSymbol(Symbol.OpenBracket))
{
ExpectSymbol(Symbol.CloseBracket);
var baseType = ParseType();
return new NubArrayType(baseType);
}
throw new Exception($"Unexpected token {Peek()} when parsing type");
}
private Token ExpectToken()
@@ -517,6 +532,19 @@ public class Parser
return false;
}
private bool TryExpectIdentifier([NotNullWhen(true)] out string? identifier)
{
if (Peek() is { HasValue: true, Value: IdentifierToken identifierToken })
{
identifier = identifierToken.Value;
Next();
return true;
}
identifier = null;
return false;
}
private IdentifierToken ExpectIdentifier()
{
var token = ExpectToken();

7
src/compiler/Nub.Lang/Frontend/Parsing/StructFieldAccessorNode.cs
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@@ -1,7 +0,0 @@
namespace Nub.Lang.Frontend.Parsing;
public class StructFieldAccessorNode(ExpressionNode @struct, string field) : ExpressionNode
{
public ExpressionNode Struct { get; } = @struct;
public string Field { get; } = field;
}