From c1de40d3615a8efc852fd1a12832437ee3ce4318 Mon Sep 17 00:00:00 2001 From: Michael Williamson Date: Wed, 30 Sep 2015 19:47:38 +0100 Subject: Define methods once per type --- .../org/zwobble/couscous/values/StringValue.java | 27 +++++++++++----------- 1 file changed, 13 insertions(+), 14 deletions(-) (limited to 'src/main/java/org/zwobble/couscous/values/StringValue.java') diff --git a/src/main/java/org/zwobble/couscous/values/StringValue.java b/src/main/java/org/zwobble/couscous/values/StringValue.java index 3f4b2b0..da45f02 100644 --- a/src/main/java/org/zwobble/couscous/values/StringValue.java +++ b/src/main/java/org/zwobble/couscous/values/StringValue.java @@ -1,26 +1,25 @@ package org.zwobble.couscous.values; -import java.util.Optional; - import lombok.Value; import lombok.val; @Value public class StringValue implements InterpreterValue { + private static final ConcreteType TYPE = ConcreteType.builder() + .method("length", (receiver, arguments) -> new IntegerValue(receiver.value.length())) + + .method("substring", (receiver, arguments) -> { + val startIndex = arguments.pop(IntegerValue.class); + val endIndex = arguments.pop(IntegerValue.class); + return new StringValue(receiver.value.substring(startIndex.getValue(), endIndex.getValue())); + }) + + .build(); + String value; @Override - public Optional getMethod(String methodName) { - if (methodName == "length") { - return Optional.of(arguments -> new IntegerValue(value.length())); - } else if (methodName == "substring") { - return Optional.of(arguments -> { - val startIndex = (IntegerValue)arguments.get(0); - val endIndex = (IntegerValue)arguments.get(1); - return new StringValue(value.substring(startIndex.getValue(), endIndex.getValue())); - }); - } else { - return Optional.empty(); - } + public ConcreteType getType() { + return TYPE; } } -- cgit v1.2.3