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fix: 函数参数重名

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This commit is contained in:
zhangxun 2025-07-10 21:08:10 +08:00
parent 565cc79329
commit e881bffe85
1 changed files with 13 additions and 4 deletions
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17
src/main/java/org/jcnc/snow/compiler/parser/function/FunctionParser.java
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@ -8,16 +8,14 @@ import org.jcnc.snow.compiler.parser.base.TopLevelParser;
import org.jcnc.snow.compiler.parser.ast.FunctionNode; import org.jcnc.snow.compiler.parser.ast.FunctionNode;
import org.jcnc.snow.compiler.parser.ast.ParameterNode; import org.jcnc.snow.compiler.parser.ast.ParameterNode;
import org.jcnc.snow.compiler.parser.ast.base.StatementNode; import org.jcnc.snow.compiler.parser.ast.base.StatementNode;
import org.jcnc.snow.compiler.parser.context.ParseException;
import org.jcnc.snow.compiler.parser.context.ParserContext; import org.jcnc.snow.compiler.parser.context.ParserContext;
import org.jcnc.snow.compiler.parser.context.TokenStream; import org.jcnc.snow.compiler.parser.context.TokenStream;
import org.jcnc.snow.compiler.parser.factory.StatementParserFactory; import org.jcnc.snow.compiler.parser.factory.StatementParserFactory;
import org.jcnc.snow.compiler.parser.utils.FlexibleSectionParser; import org.jcnc.snow.compiler.parser.utils.FlexibleSectionParser;
import org.jcnc.snow.compiler.parser.utils.FlexibleSectionParser.SectionDefinition; import org.jcnc.snow.compiler.parser.utils.FlexibleSectionParser.SectionDefinition;
import java.util.ArrayList; import java.util.*;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/** /**
* {@code FunctionParser} 是顶层函数定义的语法解析器， * {@code FunctionParser} 是顶层函数定义的语法解析器，
@ -77,6 +75,17 @@ public class FunctionParser implements TopLevelParser {
body.add(new ReturnNode(null, new NodeContext(line, column, file))); body.add(new ReturnNode(null, new NodeContext(line, column, file)));
} }
Set<String> set = new HashSet<>();
parameters.forEach((node) -> {
final String name = node.name();
if (set.contains(name)) {
throw new ParseException(String.format("参数 `%s` 重定义", name),
node.context().line(), node.context().column());
}
set.add(name);
});
parseFunctionFooter(ts); parseFunctionFooter(ts);
return new FunctionNode(functionName, parameters, returnType[0], body, new NodeContext(line, column, file)); return new FunctionNode(functionName, parameters, returnType[0], body, new NodeContext(line, column, file));