58 lines
1.7 KiB
Java
Executable File
58 lines
1.7 KiB
Java
Executable File
package frontend.ast.func;
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import java.util.ArrayList;
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import frontend.ast.Node;
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import frontend.ast.SyntaxType;
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import frontend.lexer.TokenStream;
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import frontend.lexer.TokenType;
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import error.Errors;
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import error.Error;
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import error.ErrorType;
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import frontend.ast.token.TokenNode;
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import frontend.ast.exp.Exp;
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import midend.symbol.FuncSymbol;
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public class FuncRParams extends Node {
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public FuncRParams(TokenStream ts) {
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super(SyntaxType.FUNC_REAL_PARAM_S, ts);
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}
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public void parse(Errors errors) {
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while (true) {
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Exp ep = new Exp(ts);
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ep.parse(errors);
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addChild(ep);
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if (getCurrToken().getType() == TokenType.COMMA) {
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addChild(new TokenNode(ts)); // comma
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} else {
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break;
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}
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}
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}
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public int getParamNum() {
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return (getChildren().size() + 1) / 2;
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}
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public void checkParamType(FuncSymbol funcSymbol, Errors errors, int line) {
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int fparaNum = funcSymbol.getParamNum();
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int rparaNum = getParamNum();
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int size = rparaNum < fparaNum ? rparaNum : fparaNum;
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for (int i = 0; i < size; i++) {
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Exp exp = (Exp) getChild(i * 2);
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if (exp.getType() != funcSymbol.getParamType(i)) {
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errors.addError(new Error(line, ErrorType.e));
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}
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}
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}
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public ArrayList<Exp> getParamList() {
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ArrayList<Exp> paramList = new ArrayList<Exp>();
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for (int i = 0; i < getChildren().size(); i += 2) {
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paramList.add((Exp) getChild(i));
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}
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return paramList;
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}
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}
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