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//-----------------------------------------------------------------------------
//
// Copyright (C) Microsoft Corporation. All Rights Reserved.
//
//-----------------------------------------------------------------------------
using System;
using System.IO;
using System.Xml;
using System.Collections.Generic;
using System.Diagnostics.Contracts;
namespace Microsoft.Boogie {
public class XmlSink {
string/*!*/ filename;
[ContractInvariantMethod]
void ObjectInvariant() {
Contract.Invariant(filename != null);
}
[Rep]
XmlWriter wr;
public bool IsOpen {
get {
return wr != null;
}
}
public XmlSink(string filename) {
Contract.Requires(filename != null);
this.filename = filename;
}
/// <summary>
/// Returns null on success, in which case the caller should eventually invoke Close.
/// Returns an error string on failure.
/// </summary>
public string Open() {
//modifies this.*;
Contract.Ensures(IsOpen);
if (wr != null) {
Close();
}
cce.BeginExpose(this);
{
XmlWriterSettings settings = new XmlWriterSettings();
settings.Indent = true;
wr = XmlWriter.Create(filename, settings);
wr.WriteStartDocument();
wr.WriteStartElement("boogie");
wr.WriteAttributeString("version", CommandLineOptions.VersionNumber);
wr.WriteAttributeString("commandLine", Environment.CommandLine);
}
cce.EndExpose();
return null; // success
}
public void Close() {
//modifies this.*;
if (wr != null) {
cce.BeginExpose(this);
{
wr.WriteEndDocument();
wr.Close();
wr = null;
}
cce.EndExpose();
}
}
const string DateTimeFormatString = "u";
public void WriteStartMethod(string methodName, DateTime startTime) {
Contract.Requires(methodName != null);
Contract.Requires(IsOpen);
//modifies this.*;
Contract.Ensures(IsOpen);
Contract.Assert(wr != null);
cce.BeginExpose(this);
{
wr.WriteStartElement("method");
wr.WriteAttributeString("name", methodName);
wr.WriteAttributeString("startTime", startTime.ToString(DateTimeFormatString));
}
cce.EndExpose();
}
public void WriteEndMethod(string outcome, DateTime endTime, TimeSpan elapsed) {
Contract.Requires(outcome != null);
Contract.Requires(IsOpen);
//modifies this.*;
Contract.Ensures(IsOpen);
Contract.Assert(wr != null);
cce.BeginExpose(this);
{
wr.WriteStartElement("conclusion");
wr.WriteAttributeString("endTime", endTime.ToString(DateTimeFormatString));
wr.WriteAttributeString("duration", elapsed.TotalSeconds.ToString());
wr.WriteAttributeString("outcome", outcome);
wr.WriteEndElement(); // outcome
wr.WriteEndElement(); // method
}
cce.EndExpose();
}
public void WriteError(string message, IToken errorToken, IToken relatedToken, BlockSeq trace) {
Contract.Requires(errorToken != null);
Contract.Requires(message != null);
Contract.Requires(IsOpen && (trace == null || cce.Owner.Different(this, trace)));
//modifies this.*, errorToken.*, relatedToken.*, trace.*;
Contract.Ensures(IsOpen);
Contract.Assert(wr != null);
cce.BeginExpose(this);
{
wr.WriteStartElement("error");
wr.WriteAttributeString("message", message);
WriteTokenAttributes(errorToken);
if (relatedToken != null) {
wr.WriteStartElement("related");
WriteTokenAttributes(relatedToken);
wr.WriteEndElement();
}
if (trace != null) {
wr.WriteStartElement("trace");
{
foreach (object bo in trace) {
cce.LoopInvariant(wr != null);
Contract.Assume(bo is Block);
Block b = (Block)bo;
wr.WriteStartElement("traceNode");
{
WriteTokenAttributes(b.tok);
wr.WriteAttributeString("label", b.Label);
}
wr.WriteEndElement();
}
wr.WriteEndElement();
}
}
wr.WriteEndElement();
}
cce.EndExpose();
}
#if CCI
public void WriteError(string message, Cci.Node offendingNode, BlockSeq trace) {
Contract.Requires(offendingNode != null);
Contract.Requires(message != null);
Contract.Requires(IsOpen && cce.Owner.Different(this, offendingNode));
Contract.Requires(trace == null || cce.Owner.Different(this, trace));
//modifies this.*, offendingNode.*, trace.*;
Contract.Ensures(IsOpen);
Contract.Assert(wr != null);
cce.BeginExpose(this);
{
wr.WriteStartElement("error");
wr.WriteAttributeString("message", message);
WriteTokenAttributes(offendingNode);
if (trace != null) {
wr.WriteStartElement("trace");
{
foreach (object bo in trace) {
cce.LoopInvariant(wr != null);
Contract.Assume(bo is Block);
Block b = (Block)bo;
wr.WriteStartElement("traceNode");
{
this.WriteTokenAttributes(b.tok);
wr.WriteAttributeString("label", b.Label);
}
wr.WriteEndElement();
}
wr.WriteEndElement();
}
}
wr.WriteEndElement();
}
cce.EndExpose();
}
#endif
[Inside]
private void WriteTokenAttributes(IToken tok) {
Contract.Requires(wr != null && cce.IsPeerConsistent(wr));
//modifies this.0, wr.*;
if (tok != null && tok.filename != null) {
wr.WriteAttributeString("file", tok.filename);
wr.WriteAttributeString("line", tok.line.ToString());
wr.WriteAttributeString("column", tok.col.ToString());
}
}
#if CCI
[Inside]
private void WriteTokenAttributes(Cci.Node node) {
Contract.Requires(node != null);
Contract.Requires(wr != null && cce.IsPeerConsistent(wr));
//modifies this.0, wr.*;
Contract.Assert(wr != null);
if (node.SourceContext.Document != null) {
wr.WriteAttributeString("file", node.SourceContext.Document.Name);
wr.WriteAttributeString("line", node.SourceContext.StartLine.ToString());
wr.WriteAttributeString("column", node.SourceContext.StartColumn.ToString());
}
}
#endif
public void WriteStartInference(string inferenceName) {
Contract.Requires(inferenceName != null);
Contract.Requires(IsOpen);
//modifies this.*;
Contract.Ensures(IsOpen);
Contract.Assert(wr != null);
cce.BeginExpose(this);
{
wr.WriteStartElement("inference");
wr.WriteAttributeString("name", inferenceName);
}
cce.EndExpose();
}
public void WriteEndInference() {
Contract.Requires(IsOpen);
//modifies this.*;
Contract.Ensures(IsOpen);
Contract.Assert(wr != null);
cce.BeginExpose(this);
{
wr.WriteEndElement(); // inference
}
cce.EndExpose();
}
public void WriteContractParaAssignment(string varName, string val) {
Contract.Requires(varName != null);
Contract.Requires(IsOpen);
//modifies this.*;
Contract.Ensures(IsOpen);
Contract.Assert(wr != null);
cce.BeginExpose(this);
{
wr.WriteStartElement("assignment");
wr.WriteAttributeString("name", varName);
wr.WriteAttributeString("value", val);
wr.WriteEndElement();
}
cce.EndExpose();
}
public void WriteStartFile(string filename) {
Contract.Requires(filename != null);
Contract.Requires(IsOpen);
//modifies this.*;
Contract.Ensures(IsOpen);
Contract.Assert(wr != null);
cce.BeginExpose(this);
{
wr.WriteStartElement("file");
wr.WriteAttributeString("name", filename);
}
cce.EndExpose();
}
public void WriteEndFile() {
Contract.Requires(IsOpen);
//modifies this.*;
Contract.Ensures(IsOpen);
Contract.Assert(wr != null);
cce.BeginExpose(this);
{
wr.WriteEndElement();
}
cce.EndExpose();
}
public void WriteFileFragment(string fragment) {
Contract.Requires(fragment != null);
Contract.Requires(IsOpen);
//modifies this.*;
Contract.Ensures(IsOpen);
Contract.Assert(wr != null);
cce.BeginExpose(this);
{
wr.WriteStartElement("fileFragment");
wr.WriteAttributeString("name", fragment);
wr.WriteEndElement();
}
cce.EndExpose();
}
}
public class XmlFileScope : IDisposable {
[Peer]
[SpecPublic]
XmlSink sink;
[Captured]
public XmlFileScope(XmlSink sink, string filename) {
Contract.Requires(filename != null);
Contract.Requires(sink == null || sink.IsOpen);
//modifies sink.*;
if (sink != null) {
sink.WriteStartFile(filename); // invoke this method while "sink" is still peer consistent
cce.Owner.AssignSame(this, sink);
this.sink = sink;
}
}
public void Dispose() {
if (sink != null) {
Contract.Assume(sink.IsOpen);
sink.WriteEndFile();
}
}
}
}
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