From a34a00ba19f6ffb61762da4629b53b8a633f9d17 Mon Sep 17 00:00:00 2001 From: Michael Williamson Date: Thu, 11 Feb 2016 21:33:25 +0000 Subject: Implement static constructor and fields in interpreter --- .../interpreter/values/InterpreterFields.java | 36 ++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 src/main/java/org/zwobble/couscous/interpreter/values/InterpreterFields.java (limited to 'src/main/java/org/zwobble/couscous/interpreter/values/InterpreterFields.java') diff --git a/src/main/java/org/zwobble/couscous/interpreter/values/InterpreterFields.java b/src/main/java/org/zwobble/couscous/interpreter/values/InterpreterFields.java new file mode 100644 index 0000000..fc082a5 --- /dev/null +++ b/src/main/java/org/zwobble/couscous/interpreter/values/InterpreterFields.java @@ -0,0 +1,36 @@ +package org.zwobble.couscous.interpreter.values; + +import org.zwobble.couscous.interpreter.InterpreterTypes; +import org.zwobble.couscous.interpreter.errors.NoSuchField; +import org.zwobble.couscous.interpreter.errors.UnboundField; + +import java.util.HashMap; +import java.util.Map; + +public class InterpreterFields { + // TODO: distinguish static and non-static fields + + private final ConcreteType type; + private final Map fields; + + public InterpreterFields(ConcreteType type) { + this.type = type; + this.fields = new HashMap<>(); + } + + public InterpreterValue getField(String fieldName) { + type.getField(fieldName).orElseThrow(() -> new NoSuchField(fieldName)); + if (fields.containsKey(fieldName)) { + return fields.get(fieldName); + } else { + throw new UnboundField(fieldName); + } + } + + public void setField(String fieldName, InterpreterValue value) { + FieldValue field = type.getField(fieldName) + .orElseThrow(() -> new NoSuchField(fieldName)); + InterpreterTypes.checkIsInstance(field.getType(), value); + fields.put(fieldName, value); + } +} -- cgit v1.2.3