Canon/Canon.Core/SyntaxNodes/MultiplyOperator.cs

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C#
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using Canon.Core.Abstractions;
using Canon.Core.CodeGenerators;
using Canon.Core.Enums;
using Canon.Core.LexicalParser;
namespace Canon.Core.SyntaxNodes;
public class MultiplyOperator : NonTerminatedSyntaxNode
{
public override NonTerminatorType Type => NonTerminatorType.MultiplyOperator;
public override void PreVisit(SyntaxNodeVisitor visitor)
{
visitor.PreVisit(this);
}
public override void PostVisit(SyntaxNodeVisitor visitor)
{
visitor.PostVisit(this);
}
public static MultiplyOperator Create(List<SyntaxNodeBase> children)
{
return new MultiplyOperator { Children = children };
}
public override void GenerateCCode(CCodeBuilder builder)
{
var token = Children[0].Convert<TerminatedSyntaxNode>().Token;
if (token.TokenType == SemanticTokenType.Operator)
{
var operatorType = token.Convert<OperatorSemanticToken>().OperatorType;
if (operatorType == OperatorType.Multiply)
{
builder.AddString(" *");
}
else if (operatorType == OperatorType.Divide)
{
//实数除法需要将操作数强转为double
builder.AddString(" /(double)");
}
}
else
{
var keywordType = token.Convert<KeywordSemanticToken>().KeywordType;
if (keywordType == KeywordType.And)
{
builder.AddString(" &&");
}
else if (keywordType == KeywordType.Mod)
{
builder.AddString(" %");
}
else
{
builder.AddString(" /");
}
}
}
}