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Diffstat (limited to 'include/Support/GraphWriter.h')
| -rw-r--r-- | include/Support/GraphWriter.h | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/include/Support/GraphWriter.h b/include/Support/GraphWriter.h deleted file mode 100644 index c6a5c3c..0000000 --- a/include/Support/GraphWriter.h +++ /dev/null @@ -1,216 +0,0 @@ -//===-- Support/GraphWriter.h - Write a graph to a .dot file ----*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file was developed by the LLVM research group and is distributed under -// the University of Illinois Open Source License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file defines a simple interface that can be used to print out generic -// LLVM graphs to ".dot" files. "dot" is a tool that is part of the AT&T -// graphviz package (http://www.research.att.com/sw/tools/graphviz/) which can -// be used to turn the files output by this interface into a variety of -// different graphics formats. -// -// Graphs do not need to implement any interface past what is already required -// by the GraphTraits template, but they can choose to implement specializations -// of the DOTGraphTraits template if they want to customize the graphs output in -// any way. -// -//===----------------------------------------------------------------------===// - -#ifndef SUPPORT_GRAPHWRITER_H -#define SUPPORT_GRAPHWRITER_H - -#include "Support/DOTGraphTraits.h" -#include "Support/GraphTraits.h" -#include <vector> -#include <iostream> - -namespace llvm { - -namespace DOT { // Private functions... - inline std::string EscapeString(const std::string &Label) { - std::string Str(Label); - for (unsigned i = 0; i != Str.length(); ++i) - switch (Str[i]) { - case '\n': - Str.insert(Str.begin()+i, '\\'); // Escape character... - ++i; - Str[i] = 'n'; - break; - case '\t': - Str.insert(Str.begin()+i, ' '); // Convert to two spaces - ++i; - Str[i] = ' '; - break; - case '\\': - if (i+1 != Str.length() && Str[i+1] == 'l') - break; // don't disturb \l - case '{': case '}': - case '<': case '>': - case '"': - Str.insert(Str.begin()+i, '\\'); // Escape character... - ++i; // don't infinite loop - break; - } - return Str; - } -} - -template<typename GraphType> -class GraphWriter { - std::ostream &O; - const GraphType &G; - - typedef DOTGraphTraits<GraphType> DOTTraits; - typedef GraphTraits<GraphType> GTraits; - typedef typename GTraits::NodeType NodeType; - typedef typename GTraits::nodes_iterator node_iterator; - typedef typename GTraits::ChildIteratorType child_iterator; -public: - GraphWriter(std::ostream &o, const GraphType &g) : O(o), G(g) {} - - void writeHeader(const std::string &Name) { - if (Name.empty()) - O << "digraph foo {\n"; // Graph name doesn't matter - else - O << "digraph " << Name << " {\n"; - - std::string GraphName = DOTTraits::getGraphName(G); - if (!GraphName.empty()) - O << "\tlabel=\"" << DOT::EscapeString(GraphName) << "\";\n"; - O << DOTTraits::getGraphProperties(G); - O << "\n"; - } - - void writeFooter() { - // Finish off the graph - O << "}\n"; - } - - void writeNodes() { - // Loop over the graph, printing it out... - for (node_iterator I = GTraits::nodes_begin(G), E = GTraits::nodes_end(G); - I != E; ++I) - writeNode(&*I); - } - - void writeNode(NodeType *Node) { - std::string NodeAttributes = DOTTraits::getNodeAttributes(Node); - - O << "\tNode" << reinterpret_cast<const void*>(Node) << " [shape=record,"; - if (!NodeAttributes.empty()) O << NodeAttributes << ","; - O << "label=\"{" - << DOT::EscapeString(DOTTraits::getNodeLabel(Node, G)); - - // Print out the fields of the current node... - child_iterator EI = GTraits::child_begin(Node); - child_iterator EE = GTraits::child_end(Node); - if (EI != EE) { - O << "|{"; - - for (unsigned i = 0; EI != EE && i != 64; ++EI, ++i) { - if (i) O << "|"; - O << "<g" << i << ">" << DOTTraits::getEdgeSourceLabel(Node, EI); - } - - if (EI != EE) - O << "|<g64>truncated..."; - O << "}"; - } - O << "}\"];\n"; // Finish printing the "node" line - - // Output all of the edges now - EI = GTraits::child_begin(Node); - for (unsigned i = 0; EI != EE && i != 64; ++EI, ++i) - writeEdge(Node, i, EI); - for (; EI != EE; ++EI) - writeEdge(Node, 64, EI); - } - - void writeEdge(NodeType *Node, unsigned edgeidx, child_iterator EI) { - if (NodeType *TargetNode = *EI) { - int DestPort = -1; - if (DOTTraits::edgeTargetsEdgeSource(Node, EI)) { - child_iterator TargetIt = DOTTraits::getEdgeTarget(Node, EI); - - // Figure out which edge this targets... - unsigned Offset = std::distance(GTraits::child_begin(TargetNode), - TargetIt); - DestPort = static_cast<int>(Offset); - } - - emitEdge(reinterpret_cast<const void*>(Node), edgeidx, - reinterpret_cast<const void*>(TargetNode), DestPort, - DOTTraits::getEdgeAttributes(Node, EI)); - } - } - - /// emitSimpleNode - Outputs a simple (non-record) node - void emitSimpleNode(const void *ID, const std::string &Attr, - const std::string &Label, unsigned NumEdgeSources = 0, - const std::vector<std::string> *EdgeSourceLabels = 0) { - O << "\tNode" << ID << "[ "; - if (!Attr.empty()) - O << Attr << ","; - O << " label =\""; - if (NumEdgeSources) O << "{"; - O << DOT::EscapeString(Label); - if (NumEdgeSources) { - O << "|{"; - - for (unsigned i = 0; i != NumEdgeSources; ++i) { - if (i) O << "|"; - O << "<g" << i << ">"; - if (EdgeSourceLabels) O << (*EdgeSourceLabels)[i]; - } - O << "}}"; - } - O << "\"];\n"; - } - - /// emitEdge - Output an edge from a simple node into the graph... - void emitEdge(const void *SrcNodeID, int SrcNodePort, - const void *DestNodeID, int DestNodePort, - const std::string &Attrs) { - if (SrcNodePort > 64) return; // Eminating from truncated part? - if (DestNodePort > 64) DestNodePort = 64; // Targetting the truncated part? - - O << "\tNode" << SrcNodeID; - if (SrcNodePort >= 0) - O << ":g" << SrcNodePort; - O << " -> Node" << reinterpret_cast<const void*>(DestNodeID); - if (DestNodePort >= 0) - O << ":g" << DestNodePort; - - if (!Attrs.empty()) - O << "[" << Attrs << "]"; - O << ";\n"; - } -}; - -template<typename GraphType> -std::ostream &WriteGraph(std::ostream &O, const GraphType &G, - const std::string &Name = "") { - // Start the graph emission process... - GraphWriter<GraphType> W(O, G); - - // Output the header for the graph... - W.writeHeader(Name); - - // Emit all of the nodes in the graph... - W.writeNodes(); - - // Output any customizations on the graph - DOTGraphTraits<GraphType>::addCustomGraphFeatures(G, W); - - // Output the end of the graph - W.writeFooter(); - return O; -} - -} // End llvm namespace - -#endif |