28 lines
729 B
Java
28 lines
729 B
Java
package function.builtin;
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import environment.RuntimeEnvironment;
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import function.*;
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import sexpression.*;
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@FunctionNames({ "PRINT" })
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public class PRINT extends LispFunction {
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private ArgumentValidator argumentValidator;
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private RuntimeEnvironment environment;
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public PRINT() {
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this.argumentValidator = new ArgumentValidator("PRINT");
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this.argumentValidator.setExactNumberOfArguments(1);
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this.environment = RuntimeEnvironment.getInstance();
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}
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public SExpression call(Cons argumentList) {
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argumentValidator.validate(argumentList);
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SExpression argument = argumentList.getFirst();
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environment.getOutput().println(argument);
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return argument;
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}
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}
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