45 lines
1.4 KiB
Java
45 lines
1.4 KiB
Java
package io.gitlab.jfronny.muscript.ast.math;
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import io.gitlab.jfronny.muscript.compiler.ExprWriter;
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import io.gitlab.jfronny.muscript.compiler.Order;
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import io.gitlab.jfronny.muscript.data.Scope;
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import io.gitlab.jfronny.muscript.ast.Expr;
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import io.gitlab.jfronny.muscript.ast.NumberExpr;
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import io.gitlab.jfronny.muscript.ast.literal.NumberLiteral;
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import java.io.IOException;
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public class Invert extends NumberExpr {
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public final NumberExpr inner;
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public Invert(int chStart, int chEnd, NumberExpr inner) {
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super(Order.Unary, chStart, chEnd);
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this.inner = inner;
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}
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@Override
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public Double get(Scope dataRoot) {
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return -inner.get(dataRoot);
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}
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@Override
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public NumberExpr optimize() {
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NumberExpr inner = this.inner.optimize();
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if (inner instanceof Invert invert) return invert.inner;
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if (inner instanceof NumberLiteral literal) return Expr.literal(chStart, chEnd, -literal.value);
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if (inner instanceof Minus minus) return new Minus(chStart, chEnd, minus.subtrahend, minus.minuend).optimize();
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return new Invert(chStart, chEnd, inner);
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}
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@Override
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public void decompile(ExprWriter writer) throws IOException {
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writer.append('-');
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parenthesize(inner, writer, false);
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}
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@Override
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public boolean equals(Object obj) {
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return obj instanceof Invert invert && inner.equals(invert.inner);
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}
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}
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