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

65 lines
2.3 KiB
Java

package io.gitlab.jfronny.muscript.ast.conditional;
import io.gitlab.jfronny.muscript.ast.Expr;
import io.gitlab.jfronny.muscript.ast.bool.Not;
import io.gitlab.jfronny.muscript.ast.dynamic.ExprGroup;
import io.gitlab.jfronny.muscript.compiler.*;
import io.gitlab.jfronny.muscript.data.Scope;
import io.gitlab.jfronny.muscript.ast.BoolExpr;
import io.gitlab.jfronny.muscript.ast.literal.BoolLiteral;
import java.io.IOException;
import java.util.List;
import java.util.stream.Stream;
public class BoolConditional extends BoolExpr {
public final BoolExpr condition;
public final BoolExpr trueExpr;
public final BoolExpr falseExpr;
public BoolConditional(CodeLocation location, BoolExpr condition, BoolExpr trueExpr, BoolExpr falseExpr) {
super(Order.Conditional, location);
this.condition = condition;
this.trueExpr = trueExpr;
this.falseExpr = falseExpr;
}
@Override
public Boolean get(Scope dataRoot) {
return condition.get(dataRoot) ? trueExpr.get(dataRoot) : falseExpr.get(dataRoot);
}
@Override
public BoolExpr optimize() {
BoolExpr condition = this.condition.optimize();
BoolExpr trueExpr = this.trueExpr.optimize();
BoolExpr falseExpr = this.falseExpr.optimize();
if (condition instanceof BoolLiteral literal) return literal.value ? trueExpr : falseExpr;
if (trueExpr.equals(falseExpr)) return trueExpr;
if (condition instanceof Not not) return new BoolConditional(location, not.inner, falseExpr, trueExpr);
return new BoolConditional(location, condition, trueExpr, falseExpr);
}
@Override
public Stream<Expr<?>> extractSideEffects() {
return UnresolvedConditional.extractSideEffects(location, 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 BoolConditional conditional
&& condition.equals(conditional.condition)
&& trueExpr.equals(conditional.trueExpr)
&& falseExpr.equals(conditional.falseExpr);
}
}