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Better literal handling

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This commit is contained in:
nub31
2025-09-16 19:15:56 +02:00
parent d907d1183f
commit 1391444836
4 changed files with 74 additions and 102 deletions
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106
compiler/NubLang/Generation/QBE/QBEGenerator.cs
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@@ -1,7 +1,5 @@
using System.Diagnostics;
using System.Globalization;
using System.Text;
using NubLang.Tokenization;
using NubLang.TypeChecking.Node;
namespace NubLang.Generation.QBE;
@@ -666,6 +664,13 @@ public class QBEGenerator
{
return rValue switch
{
StringLiteralNode expr => EmitStringLiteral(expr),
CStringLiteralNode expr => EmitCStringLiteral(expr),
IntLiteralNode expr => expr.Value.ToString(),
UIntLiteralNode expr => expr.Value.ToString(),
Float32LiteralNode expr => BitConverter.SingleToInt32Bits(expr.Value).ToString(),
Float64LiteralNode expr => BitConverter.DoubleToInt64Bits(expr.Value).ToString(),
BoolLiteralNode expr => expr.Value ? "1" : "0",
AddressOfNode expr => EmitAddressOf(expr.LValue),
ArrayInitializerNode expr => EmitArrayInitializer(expr),
BinaryExpressionNode expr => EmitBinaryExpression(expr),
@@ -675,7 +680,6 @@ public class QBEGenerator
FuncCallNode expr => EmitFuncCall(expr),
FuncIdentifierNode expr => FuncName(expr.Module, expr.Name, expr.ExternSymbol),
FuncParameterIdentifierNode expr => $"%{expr.Name}",
LiteralNode expr => EmitLiteral(expr),
StructFuncCallNode expr => EmitStructFuncCall(expr),
StructInitializerNode expr => EmitStructInitializer(expr),
UnaryExpressionNode expr => EmitUnaryExpression(expr),
@@ -695,6 +699,20 @@ public class QBEGenerator
return EmitLoad(lValue.Type, address);
}
private string EmitStringLiteral(StringLiteralNode expr)
{
var stringLiteral = new StringLiteral(expr.Value, StringName());
_stringLiterals.Add(stringLiteral);
return stringLiteral.Name;
}
private string EmitCStringLiteral(CStringLiteralNode expr)
{
var cStringLiteral = new CStringLiteral(expr.Value, CStringName());
_cStringLiterals.Add(cStringLiteral);
return cStringLiteral.Name;
}
private string EmitArrayInitializer(ArrayInitializerNode arrayInitializer)
{
var capacity = EmitExpression(arrayInitializer.Capacity);
@@ -922,88 +940,6 @@ public class QBEGenerator
};
}
private string EmitLiteral(LiteralNode literal)
{
switch (literal.Kind)
{
case LiteralKind.Integer:
{
if (literal.Type is FloatTypeNode { Width: 32 })
{
var value = float.Parse(literal.Value, CultureInfo.InvariantCulture);
var bits = BitConverter.SingleToInt32Bits(value);
return bits.ToString();
}
if (literal.Type is FloatTypeNode { Width: 64 })
{
var value = double.Parse(literal.Value, CultureInfo.InvariantCulture);
var bits = BitConverter.DoubleToInt64Bits(value);
return bits.ToString();
}
if (literal.Type is IntTypeNode)
{
return literal.Value;
}
break;
}
case LiteralKind.Float:
{
if (literal.Type is IntTypeNode)
{
return literal.Value.Split(".").First();
}
if (literal.Type is FloatTypeNode { Width: 32 })
{
var value = float.Parse(literal.Value, CultureInfo.InvariantCulture);
var bits = BitConverter.SingleToInt32Bits(value);
return bits.ToString();
}
if (literal.Type is FloatTypeNode { Width: 64 })
{
var value = double.Parse(literal.Value, CultureInfo.InvariantCulture);
var bits = BitConverter.DoubleToInt64Bits(value);
return bits.ToString();
}
break;
}
case LiteralKind.String:
{
if (literal.Type is StringTypeNode)
{
var stringLiteral = new StringLiteral(literal.Value, StringName());
_stringLiterals.Add(stringLiteral);
return stringLiteral.Name;
}
if (literal.Type is CStringTypeNode)
{
var cStringLiteral = new CStringLiteral(literal.Value, CStringName());
_cStringLiterals.Add(cStringLiteral);
return cStringLiteral.Name;
}
break;
}
case LiteralKind.Bool:
{
if (literal.Type is BoolTypeNode)
{
return bool.Parse(literal.Value) ? "1" : "0";
}
break;
}
}
throw new NotSupportedException($"Cannot create literal of kind '{literal.Kind}' for type {literal.Type}");
}
private string EmitStructInitializer(StructInitializerNode structInitializer)
{
var destination = TmpName();