Mercurial > hg > graal-jvmci-8
view graal/com.oracle.truffle.ruby.runtime/src/com/oracle/truffle/ruby/runtime/objects/FloatStorageLocation.java @ 14094:3f27e57439ed
Truffle/Instrumentation: significant rearrangement (including moved class) and extension of the Truffle Instrumentation Framework. New interfaces include DebugContext (which can be attached to the ExecutionContext), through which access is provided to possibly language-specific (a) node instrumentation, (b) debug services manager, (c) notification when programs halt, (d) display of language values, and (e) display of variable identifiers.
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Mon, 03 Feb 2014 20:58:23 -0800 |
parents | 0fbee3eb71f0 |
children |
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/* * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This * code is released under a tri EPL/GPL/LGPL license. You can use it, * redistribute it and/or modify it under the terms of the: * * Eclipse Public License version 1.0 * GNU General Public License version 2 * GNU Lesser General Public License version 2.1 */ package com.oracle.truffle.ruby.runtime.objects; import com.oracle.truffle.api.*; import com.oracle.truffle.api.nodes.*; import com.oracle.truffle.ruby.runtime.*; /** * A storage location for Floats. */ public class FloatStorageLocation extends PrimitiveStorageLocation { public FloatStorageLocation(ObjectLayout objectLayout, long offset, int mask) { super(objectLayout, offset, mask); } @Override public Object read(RubyBasicObject object, boolean condition) { try { return readFloat(object, condition); } catch (UnexpectedResultException e) { return e.getResult(); } } public double readFloat(RubyBasicObject object, boolean condition) throws UnexpectedResultException { if (isSet(object)) { return CompilerDirectives.unsafeGetDouble(object, offset, condition, this); } else { throw new UnexpectedResultException(NilPlaceholder.INSTANCE); } } @Override public void write(RubyBasicObject object, Object value) throws GeneralizeStorageLocationException { if (value instanceof Double) { writeFloat(object, (double) value); } else if (value instanceof NilPlaceholder) { markAsUnset(object); } else { throw new GeneralizeStorageLocationException(); } } public void writeFloat(RubyBasicObject object, Double value) { CompilerDirectives.unsafePutDouble(object, offset, value, null); markAsSet(object); } @Override public Class getStoredClass() { return Double.class; } }