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Copy pathDefExpr.java
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73 lines (61 loc) · 1.81 KB
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package cwp.ast;
import cwp.lexer.Token;
import java.util.ArrayList;
public class DefExpr extends Expr {
public Token initTok;
public Token nameTok;
public boolean isFunction = false;
public ArrayList<Expr> metas;
public ArrayList<Expr> args;
public ArrayList<Expr> body;
public DefExpr(Token initTok, Token nameTok, boolean isFunction, ArrayList<Expr> metas,
ArrayList<Expr> args, ArrayList<Expr> body) {
super(initTok);
this.initTok = initTok;
this.nameTok = nameTok;
this.isFunction = isFunction;
this.metas = metas;
this.args = args;
this.body = body;
}
@Override
public String toString() {
return "DefExpr: " + initTok.toString();
}
public String gen() {
if (isFunction)
return genDefn();
else
return genDef();
}
public String genMetas() {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < metas.size(); i++) {
sb.append("^");
sb.append(metas.get(i).gen());
sb.append(" ");
}
return sb.toString();
}
public String genDef() {
return "(def " + genMetas() + nameTok.str + " "
+ arrToStr(body) +
")";
}
public String genDefn() {
return "(defn " + genMetas() + nameTok.str + " ["
+ arrToStr(args) + "] "
+ arrToStr(body)
+ ")";
}
public String arrToStr(ArrayList<Expr> a) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < a.size() - 1; i++) {
sb.append(a.get(i).gen());
sb.append(" ");
}
if (!a.isEmpty())
sb.append(a.get(a.size() - 1).gen());
return sb.toString();
}
}