java-commons/muscript/src/main/java/io/gitlab/jfronny/muscript/ast/conditional/StringConditional.java

56 lines
2.0 KiB
Java

package io.gitlab.jfronny.muscript.ast.conditional;
import io.gitlab.jfronny.muscript.compiler.ExprWriter;
import io.gitlab.jfronny.muscript.compiler.Order;
import io.gitlab.jfronny.muscript.data.Scope;
import io.gitlab.jfronny.muscript.ast.BoolExpr;
import io.gitlab.jfronny.muscript.ast.StringExpr;
import io.gitlab.jfronny.muscript.ast.literal.BoolLiteral;
import java.io.IOException;
public class StringConditional extends StringExpr {
public final BoolExpr condition;
public final StringExpr trueExpr;
public final StringExpr falseExpr;
public StringConditional(int chStart, int chEnd, BoolExpr condition, StringExpr trueExpr, StringExpr falseExpr) {
super(Order.Conditional, chStart, chEnd);
this.condition = condition;
this.trueExpr = trueExpr;
this.falseExpr = falseExpr;
}
@Override
public String get(Scope dataRoot) {
return condition.get(dataRoot) ? trueExpr.get(dataRoot) : falseExpr.get(dataRoot);
}
@Override
public StringExpr optimize() {
BoolExpr condition = this.condition.optimize();
StringExpr trueExpr = this.trueExpr.optimize();
StringExpr falseExpr = this.falseExpr.optimize();
if (condition instanceof BoolLiteral literal) return literal.value ? trueExpr : falseExpr;
if (trueExpr.equals(falseExpr)) return trueExpr;
return new StringConditional(chStart, chEnd, condition, trueExpr, falseExpr);
}
@Override
public void decompile(ExprWriter writer) throws IOException {
parenthesize(condition, writer, true);
writer.append(" ? ");
trueExpr.decompile(writer);
writer.append(" : ");
falseExpr.decompile(writer);
}
@Override
public boolean equals(Object obj) {
return obj instanceof StringConditional conditional
&& condition.equals(conditional.condition)
&& trueExpr.equals(conditional.trueExpr)
&& falseExpr.equals(conditional.falseExpr);
}
}