java-commons/muscript/src/main/java/io/gitlab/jfronny/muscript/ast/dynamic/assign/StringAssign.java

53 lines
1.5 KiB
Java

package io.gitlab.jfronny.muscript.ast.dynamic.assign;
import io.gitlab.jfronny.muscript.ast.Expr;
import io.gitlab.jfronny.muscript.ast.StringExpr;
import io.gitlab.jfronny.muscript.compiler.*;
import io.gitlab.jfronny.muscript.data.Scope;
import io.gitlab.jfronny.muscript.error.LocationalException;
import java.io.IOException;
import java.util.stream.Stream;
public class StringAssign extends StringExpr {
private final String name;
private final StringExpr value;
protected StringAssign(CodeLocation location, String name, StringExpr value) {
super(Order.Primary, location);
if (name.equals("this")) throw new LocationalException(location, "Cannot reassign 'this'");
this.name = name;
this.value = value;
}
@Override
public String get(Scope dataRoot) {
String data = value.get(dataRoot);
dataRoot.set(name, data);
return data;
}
@Override
public StringExpr optimize() {
return new StringAssign(location, name, value.optimize());
}
@Override
public Stream<Expr<?>> extractSideEffects() {
return Stream.of(this);
}
@Override
public void decompile(ExprWriter writer) throws IOException {
writer.appendLiteral(name).append(" = ");
value.decompile(writer);
}
@Override
public boolean equals(Object obj) {
return obj instanceof StringAssign assign
&& name.equals(assign.name)
&& value.equals(assign.value);
}
}