48 lines
1.5 KiB
Java
48 lines
1.5 KiB
Java
package io.gitlab.jfronny.muscript.ast.dynamic;
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import io.gitlab.jfronny.muscript.ast.DynamicExpr;
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import io.gitlab.jfronny.muscript.compiler.*;
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import io.gitlab.jfronny.muscript.data.Scope;
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import io.gitlab.jfronny.muscript.data.dynamic.Dynamic;
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import io.gitlab.jfronny.muscript.error.LocationalException;
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import java.io.IOException;
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public class Assign extends DynamicExpr {
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private final String name;
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private final DynamicExpr value;
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public Assign(int chStart, int chEnd, String name, DynamicExpr value) {
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super(Order.Primary, chStart, chEnd);
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if (name.equals("this")) throw new LocationalException(chStart, chEnd, "Cannot reassign 'this'");
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this.name = name;
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this.value = value;
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}
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@Override
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public Dynamic<?> get(Scope dataRoot) {
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Dynamic<?> data = value.get(dataRoot);
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dataRoot.set(name, data);
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return data;
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}
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@Override
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public DynamicExpr optimize() {
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return new Assign(chStart, chEnd, name, value.optimize());
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}
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@Override
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public void decompile(ExprWriter writer) throws IOException {
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if (!Lexer.isValidId(name)) throw new IllegalArgumentException("Not a valid variable name: " + name);
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writer.append(name).append(" = ");
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value.decompile(writer);
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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 Assign assign
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&& name.equals(assign.name)
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&& value.equals(assign.value);
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}
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}
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