973 lines
36 KiB
C#
973 lines
36 KiB
C#
/*
|
|
* Copyright (c) Contributors, http://opensimulator.org/
|
|
* See CONTRIBUTORS.TXT for a full list of copyright holders.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* * Neither the name of the OpenSim Project nor the
|
|
* names of its contributors may be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
|
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
using System;
|
|
using System.IO;
|
|
using System.Collections.Generic;
|
|
using Tools;
|
|
|
|
namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
|
|
{
|
|
public class CSCodeGenerator : ICodeConverter
|
|
{
|
|
private SYMBOL m_astRoot = null;
|
|
private Dictionary<KeyValuePair<int, int>, KeyValuePair<int, int>> m_positionMap;
|
|
private int m_indentWidth = 4; // for indentation
|
|
private int m_braceCount; // for indentation
|
|
private int m_CSharpLine; // the current line of generated C# code
|
|
private int m_CSharpCol; // the current column of generated C# code
|
|
|
|
/// <summary>
|
|
/// Creates an 'empty' CSCodeGenerator instance.
|
|
/// </summary>
|
|
public CSCodeGenerator()
|
|
{
|
|
ResetCounters();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Get the mapping between LSL and C# line/column number.
|
|
/// </summary>
|
|
/// <returns>Dictionary\<KeyValuePair\<int, int\>, KeyValuePair\<int, int\>\>.</returns>
|
|
public Dictionary<KeyValuePair<int, int>, KeyValuePair<int, int>> PositionMap
|
|
{
|
|
get { return m_positionMap; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Get the mapping between LSL and C# line/column number.
|
|
/// </summary>
|
|
/// <returns>SYMBOL pointing to root of the abstract syntax tree.</returns>
|
|
public SYMBOL ASTRoot
|
|
{
|
|
get { return m_astRoot; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Resets various counters and metadata.
|
|
/// </summary>
|
|
private void ResetCounters()
|
|
{
|
|
m_braceCount = 0;
|
|
m_CSharpLine = 0;
|
|
m_CSharpCol = 1;
|
|
m_positionMap = new Dictionary<KeyValuePair<int, int>, KeyValuePair<int, int>>();
|
|
m_astRoot = null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generate the code from the AST we have.
|
|
/// </summary>
|
|
/// <param name="script">The LSL source as a string.</param>
|
|
/// <returns>String containing the generated C# code.</returns>
|
|
public string Convert(string script)
|
|
{
|
|
ResetCounters();
|
|
Parser p = new LSLSyntax(new yyLSLSyntax(), new ErrorHandler(true));
|
|
// Obviously this needs to be in a try/except block.
|
|
LSL2CSCodeTransformer codeTransformer;
|
|
try
|
|
{
|
|
codeTransformer = new LSL2CSCodeTransformer(p.Parse(script));
|
|
}
|
|
catch (CSToolsException e)
|
|
{
|
|
string message;
|
|
|
|
// LL start numbering lines at 0 - geeks!
|
|
// Also need to subtract one line we prepend!
|
|
//
|
|
string emessage = e.Message;
|
|
string slinfo = e.slInfo.ToString();
|
|
|
|
// Remove wrong line number info
|
|
//
|
|
if (emessage.StartsWith(slinfo+": "))
|
|
emessage = emessage.Substring(slinfo.Length+2);
|
|
|
|
message = String.Format("Line ({0},{1}) {2}",
|
|
e.slInfo.lineNumber - 2,
|
|
e.slInfo.charPosition - 1, emessage);
|
|
|
|
throw new Exception(message);
|
|
}
|
|
|
|
m_astRoot = codeTransformer.Transform();
|
|
|
|
string retstr = String.Empty;
|
|
|
|
// standard preamble
|
|
//retstr = GenerateLine("using OpenSim.Region.ScriptEngine.Common;");
|
|
//retstr += GenerateLine("using System.Collections.Generic;");
|
|
//retstr += GenerateLine("");
|
|
//retstr += GenerateLine("namespace SecondLife");
|
|
//retstr += GenerateLine("{");
|
|
m_braceCount++;
|
|
//retstr += GenerateIndentedLine("public class Script : OpenSim.Region.ScriptEngine.Common");
|
|
//retstr += GenerateIndentedLine("{");
|
|
m_braceCount++;
|
|
|
|
// line number
|
|
m_CSharpLine += 3;
|
|
|
|
// here's the payload
|
|
retstr += GenerateLine();
|
|
foreach (SYMBOL s in m_astRoot.kids)
|
|
retstr += GenerateNode(s);
|
|
|
|
// close braces!
|
|
m_braceCount--;
|
|
//retstr += GenerateIndentedLine("}");
|
|
m_braceCount--;
|
|
//retstr += GenerateLine("}");
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Recursively called to generate each type of node. Will generate this
|
|
/// node, then all it's children.
|
|
/// </summary>
|
|
/// <param name="s">The current node to generate code for.</param>
|
|
/// <returns>String containing C# code for SYMBOL s.</returns>
|
|
private string GenerateNode(SYMBOL s)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
// make sure to put type lower in the inheritance hierarchy first
|
|
// ie: since IdentArgument and ExpressionArgument inherit from
|
|
// Argument, put IdentArgument and ExpressionArgument before Argument
|
|
if (s is GlobalFunctionDefinition)
|
|
retstr += GenerateGlobalFunctionDefinition((GlobalFunctionDefinition) s);
|
|
else if (s is GlobalVariableDeclaration)
|
|
retstr += GenerateGlobalVariableDeclaration((GlobalVariableDeclaration) s);
|
|
else if (s is State)
|
|
retstr += GenerateState((State) s);
|
|
else if (s is CompoundStatement)
|
|
retstr += GenerateCompoundStatement((CompoundStatement) s);
|
|
else if (s is Declaration)
|
|
retstr += GenerateDeclaration((Declaration) s);
|
|
else if (s is Statement)
|
|
retstr += GenerateStatement((Statement) s);
|
|
else if (s is ReturnStatement)
|
|
retstr += GenerateReturnStatement((ReturnStatement) s);
|
|
else if (s is JumpLabel)
|
|
retstr += GenerateJumpLabel((JumpLabel) s);
|
|
else if (s is JumpStatement)
|
|
retstr += GenerateJumpStatement((JumpStatement) s);
|
|
else if (s is StateChange)
|
|
retstr += GenerateStateChange((StateChange) s);
|
|
else if (s is IfStatement)
|
|
retstr += GenerateIfStatement((IfStatement) s);
|
|
else if (s is WhileStatement)
|
|
retstr += GenerateWhileStatement((WhileStatement) s);
|
|
else if (s is DoWhileStatement)
|
|
retstr += GenerateDoWhileStatement((DoWhileStatement) s);
|
|
else if (s is ForLoop)
|
|
retstr += GenerateForLoop((ForLoop) s);
|
|
else if (s is ArgumentList)
|
|
retstr += GenerateArgumentList((ArgumentList) s);
|
|
else if (s is Assignment)
|
|
retstr += GenerateAssignment((Assignment) s);
|
|
else if (s is BinaryExpression)
|
|
retstr += GenerateBinaryExpression((BinaryExpression) s);
|
|
else if (s is ParenthesisExpression)
|
|
retstr += GenerateParenthesisExpression((ParenthesisExpression) s);
|
|
else if (s is UnaryExpression)
|
|
retstr += GenerateUnaryExpression((UnaryExpression) s);
|
|
else if (s is IncrementDecrementExpression)
|
|
retstr += GenerateIncrementDecrementExpression((IncrementDecrementExpression) s);
|
|
else if (s is TypecastExpression)
|
|
retstr += GenerateTypecastExpression((TypecastExpression) s);
|
|
else if (s is FunctionCall)
|
|
retstr += GenerateFunctionCall((FunctionCall) s);
|
|
else if (s is VectorConstant)
|
|
retstr += GenerateVectorConstant((VectorConstant) s);
|
|
else if (s is RotationConstant)
|
|
retstr += GenerateRotationConstant((RotationConstant) s);
|
|
else if (s is ListConstant)
|
|
retstr += GenerateListConstant((ListConstant) s);
|
|
else if (s is Constant)
|
|
retstr += GenerateConstant((Constant) s);
|
|
else if (s is IdentDotExpression)
|
|
retstr += Generate(((IdentDotExpression) s).Name + "." + ((IdentDotExpression) s).Member, s);
|
|
else if (s is IdentExpression)
|
|
retstr += Generate(((IdentExpression) s).Name, s);
|
|
else if (s is IDENT)
|
|
retstr += Generate(((TOKEN) s).yytext, s);
|
|
else
|
|
{
|
|
foreach (SYMBOL kid in s.kids)
|
|
retstr += GenerateNode(kid);
|
|
}
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a GlobalFunctionDefinition node.
|
|
/// </summary>
|
|
/// <param name="gf">The GlobalFunctionDefinition node.</param>
|
|
/// <returns>String containing C# code for GlobalFunctionDefinition gf.</returns>
|
|
private string GenerateGlobalFunctionDefinition(GlobalFunctionDefinition gf)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
// we need to separate the argument declaration list from other kids
|
|
List<SYMBOL> argumentDeclarationListKids = new List<SYMBOL>();
|
|
List<SYMBOL> remainingKids = new List<SYMBOL>();
|
|
|
|
foreach (SYMBOL kid in gf.kids)
|
|
if (kid is ArgumentDeclarationList)
|
|
argumentDeclarationListKids.Add(kid);
|
|
else
|
|
remainingKids.Add(kid);
|
|
|
|
retstr += GenerateIndented(String.Format("{0} {1}(", gf.ReturnType, gf.Name), gf);
|
|
|
|
// print the state arguments, if any
|
|
foreach (SYMBOL kid in argumentDeclarationListKids)
|
|
retstr += GenerateArgumentDeclarationList((ArgumentDeclarationList) kid);
|
|
|
|
retstr += GenerateLine(")");
|
|
|
|
foreach (SYMBOL kid in remainingKids)
|
|
retstr += GenerateNode(kid);
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a GlobalVariableDeclaration node.
|
|
/// </summary>
|
|
/// <param name="gv">The GlobalVariableDeclaration node.</param>
|
|
/// <returns>String containing C# code for GlobalVariableDeclaration gv.</returns>
|
|
private string GenerateGlobalVariableDeclaration(GlobalVariableDeclaration gv)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
foreach (SYMBOL s in gv.kids)
|
|
{
|
|
retstr += Indent();
|
|
retstr += GenerateNode(s);
|
|
retstr += GenerateLine(";");
|
|
}
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a State node.
|
|
/// </summary>
|
|
/// <param name="s">The State node.</param>
|
|
/// <returns>String containing C# code for State s.</returns>
|
|
private string GenerateState(State s)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
foreach (SYMBOL kid in s.kids)
|
|
if (kid is StateEvent)
|
|
retstr += GenerateStateEvent((StateEvent) kid, s.Name);
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a StateEvent node.
|
|
/// </summary>
|
|
/// <param name="se">The StateEvent node.</param>
|
|
/// <param name="parentStateName">The name of the parent state.</param>
|
|
/// <returns>String containing C# code for StateEvent se.</returns>
|
|
private string GenerateStateEvent(StateEvent se, string parentStateName)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
// we need to separate the argument declaration list from other kids
|
|
List<SYMBOL> argumentDeclarationListKids = new List<SYMBOL>();
|
|
List<SYMBOL> remainingKids = new List<SYMBOL>();
|
|
|
|
foreach (SYMBOL kid in se.kids)
|
|
if (kid is ArgumentDeclarationList)
|
|
argumentDeclarationListKids.Add(kid);
|
|
else
|
|
remainingKids.Add(kid);
|
|
|
|
// "state" (function) declaration
|
|
retstr += GenerateIndented(String.Format("public void {0}_event_{1}(", parentStateName, se.Name), se);
|
|
|
|
// print the state arguments, if any
|
|
foreach (SYMBOL kid in argumentDeclarationListKids)
|
|
retstr += GenerateArgumentDeclarationList((ArgumentDeclarationList) kid);
|
|
|
|
retstr += GenerateLine(")");
|
|
|
|
foreach (SYMBOL kid in remainingKids)
|
|
retstr += GenerateNode(kid);
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for an ArgumentDeclarationList node.
|
|
/// </summary>
|
|
/// <param name="adl">The ArgumentDeclarationList node.</param>
|
|
/// <returns>String containing C# code for ArgumentDeclarationList adl.</returns>
|
|
private string GenerateArgumentDeclarationList(ArgumentDeclarationList adl)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
int comma = adl.kids.Count - 1; // tells us whether to print a comma
|
|
|
|
foreach (Declaration d in adl.kids)
|
|
{
|
|
retstr += Generate(String.Format("{0} {1}", d.Datatype, d.Id), d);
|
|
if (0 < comma--)
|
|
retstr += Generate(", ");
|
|
}
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for an ArgumentList node.
|
|
/// </summary>
|
|
/// <param name="al">The ArgumentList node.</param>
|
|
/// <returns>String containing C# code for ArgumentList al.</returns>
|
|
private string GenerateArgumentList(ArgumentList al)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
int comma = al.kids.Count - 1; // tells us whether to print a comma
|
|
|
|
foreach (SYMBOL s in al.kids)
|
|
{
|
|
retstr += GenerateNode(s);
|
|
if (0 < comma--)
|
|
retstr += Generate(", ");
|
|
}
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a CompoundStatement node.
|
|
/// </summary>
|
|
/// <param name="cs">The CompoundStatement node.</param>
|
|
/// <returns>String containing C# code for CompoundStatement cs.</returns>
|
|
private string GenerateCompoundStatement(CompoundStatement cs)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
// opening brace
|
|
retstr += GenerateIndentedLine("{");
|
|
m_braceCount++;
|
|
|
|
foreach (SYMBOL kid in cs.kids)
|
|
retstr += GenerateNode(kid);
|
|
|
|
// closing brace
|
|
m_braceCount--;
|
|
retstr += GenerateIndentedLine("}");
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a Declaration node.
|
|
/// </summary>
|
|
/// <param name="d">The Declaration node.</param>
|
|
/// <returns>String containing C# code for Declaration d.</returns>
|
|
private string GenerateDeclaration(Declaration d)
|
|
{
|
|
return Generate(String.Format("{0} {1}", d.Datatype, d.Id), d);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a Statement node.
|
|
/// </summary>
|
|
/// <param name="s">The Statement node.</param>
|
|
/// <returns>String containing C# code for Statement s.</returns>
|
|
private string GenerateStatement(Statement s)
|
|
{
|
|
string retstr = String.Empty;
|
|
bool printSemicolon = true;
|
|
|
|
retstr += Indent();
|
|
|
|
if (0 < s.kids.Count)
|
|
{
|
|
// Jump label prints its own colon, we don't need a semicolon.
|
|
printSemicolon = !(s.kids.Top is JumpLabel);
|
|
|
|
foreach (SYMBOL kid in s.kids)
|
|
retstr += GenerateNode(kid);
|
|
}
|
|
|
|
if (printSemicolon)
|
|
retstr += GenerateLine(";");
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for an Assignment node.
|
|
/// </summary>
|
|
/// <param name="a">The Assignment node.</param>
|
|
/// <returns>String containing C# code for Assignment a.</returns>
|
|
private string GenerateAssignment(Assignment a)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
retstr += GenerateNode((SYMBOL) a.kids.Pop());
|
|
retstr += Generate(String.Format(" {0} ", a.AssignmentType), a);
|
|
foreach (SYMBOL kid in a.kids)
|
|
retstr += GenerateNode(kid);
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a ReturnStatement node.
|
|
/// </summary>
|
|
/// <param name="rs">The ReturnStatement node.</param>
|
|
/// <returns>String containing C# code for ReturnStatement rs.</returns>
|
|
private string GenerateReturnStatement(ReturnStatement rs)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
retstr += Generate("return ", rs);
|
|
|
|
foreach (SYMBOL kid in rs.kids)
|
|
retstr += GenerateNode(kid);
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a JumpLabel node.
|
|
/// </summary>
|
|
/// <param name="jl">The JumpLabel node.</param>
|
|
/// <returns>String containing C# code for JumpLabel jl.</returns>
|
|
private string GenerateJumpLabel(JumpLabel jl)
|
|
{
|
|
return Generate(String.Format("{0}:\n", jl.LabelName), jl);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a JumpStatement node.
|
|
/// </summary>
|
|
/// <param name="js">The JumpStatement node.</param>
|
|
/// <returns>String containing C# code for JumpStatement js.</returns>
|
|
private string GenerateJumpStatement(JumpStatement js)
|
|
{
|
|
return Generate(String.Format("goto {0}", js.TargetName), js);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for an IfStatement node.
|
|
/// </summary>
|
|
/// <param name="ifs">The IfStatement node.</param>
|
|
/// <returns>String containing C# code for IfStatement ifs.</returns>
|
|
private string GenerateIfStatement(IfStatement ifs)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
retstr += GenerateIndented("if (", ifs);
|
|
retstr += GenerateNode((SYMBOL) ifs.kids.Pop());
|
|
retstr += GenerateLine(")");
|
|
|
|
// CompoundStatement handles indentation itself but we need to do it
|
|
// otherwise.
|
|
bool indentHere = ifs.kids.Top is Statement;
|
|
if (indentHere) m_braceCount++;
|
|
retstr += GenerateNode((SYMBOL) ifs.kids.Pop());
|
|
if (indentHere) m_braceCount--;
|
|
|
|
if (0 < ifs.kids.Count) // do it again for an else
|
|
{
|
|
retstr += GenerateIndentedLine("else", ifs);
|
|
|
|
indentHere = ifs.kids.Top is Statement;
|
|
if (indentHere) m_braceCount++;
|
|
retstr += GenerateNode((SYMBOL) ifs.kids.Pop());
|
|
if (indentHere) m_braceCount--;
|
|
}
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a StateChange node.
|
|
/// </summary>
|
|
/// <param name="sc">The StateChange node.</param>
|
|
/// <returns>String containing C# code for StateChange sc.</returns>
|
|
private string GenerateStateChange(StateChange sc)
|
|
{
|
|
return Generate(String.Format("state(\"{0}\")", sc.NewState), sc);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a WhileStatement node.
|
|
/// </summary>
|
|
/// <param name="ws">The WhileStatement node.</param>
|
|
/// <returns>String containing C# code for WhileStatement ws.</returns>
|
|
private string GenerateWhileStatement(WhileStatement ws)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
retstr += GenerateIndented("while (", ws);
|
|
retstr += GenerateNode((SYMBOL) ws.kids.Pop());
|
|
retstr += GenerateLine(")");
|
|
|
|
// CompoundStatement handles indentation itself but we need to do it
|
|
// otherwise.
|
|
bool indentHere = ws.kids.Top is Statement;
|
|
if (indentHere) m_braceCount++;
|
|
retstr += GenerateNode((SYMBOL) ws.kids.Pop());
|
|
if (indentHere) m_braceCount--;
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a DoWhileStatement node.
|
|
/// </summary>
|
|
/// <param name="dws">The DoWhileStatement node.</param>
|
|
/// <returns>String containing C# code for DoWhileStatement dws.</returns>
|
|
private string GenerateDoWhileStatement(DoWhileStatement dws)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
retstr += GenerateIndentedLine("do", dws);
|
|
|
|
// CompoundStatement handles indentation itself but we need to do it
|
|
// otherwise.
|
|
bool indentHere = dws.kids.Top is Statement;
|
|
if (indentHere) m_braceCount++;
|
|
retstr += GenerateNode((SYMBOL) dws.kids.Pop());
|
|
if (indentHere) m_braceCount--;
|
|
|
|
retstr += GenerateIndented("while (", dws);
|
|
retstr += GenerateNode((SYMBOL) dws.kids.Pop());
|
|
retstr += GenerateLine(");");
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a ForLoop node.
|
|
/// </summary>
|
|
/// <param name="fl">The ForLoop node.</param>
|
|
/// <returns>String containing C# code for ForLoop fl.</returns>
|
|
private string GenerateForLoop(ForLoop fl)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
retstr += GenerateIndented("for (", fl);
|
|
|
|
// for ( x = 0 ; x < 10 ; x++ )
|
|
// ^^^^^^^
|
|
retstr += GenerateForLoopStatement((ForLoopStatement) fl.kids.Pop());
|
|
retstr += Generate("; ");
|
|
// for ( x = 0 ; x < 10 ; x++ )
|
|
// ^^^^^^^^
|
|
retstr += GenerateNode((SYMBOL) fl.kids.Pop());
|
|
retstr += Generate("; ");
|
|
// for ( x = 0 ; x < 10 ; x++ )
|
|
// ^^^^^
|
|
retstr += GenerateForLoopStatement((ForLoopStatement) fl.kids.Pop());
|
|
retstr += GenerateLine(")");
|
|
|
|
// CompoundStatement handles indentation itself but we need to do it
|
|
// otherwise.
|
|
bool indentHere = fl.kids.Top is Statement;
|
|
if (indentHere) m_braceCount++;
|
|
retstr += GenerateNode((SYMBOL) fl.kids.Pop());
|
|
if (indentHere) m_braceCount--;
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a ForLoopStatement node.
|
|
/// </summary>
|
|
/// <param name="fls">The ForLoopStatement node.</param>
|
|
/// <returns>String containing C# code for ForLoopStatement fls.</returns>
|
|
private string GenerateForLoopStatement(ForLoopStatement fls)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
int comma = fls.kids.Count - 1; // tells us whether to print a comma
|
|
|
|
foreach (SYMBOL s in fls.kids)
|
|
{
|
|
retstr += GenerateNode(s);
|
|
if (0 < comma--)
|
|
retstr += Generate(", ");
|
|
}
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a BinaryExpression node.
|
|
/// </summary>
|
|
/// <param name="be">The BinaryExpression node.</param>
|
|
/// <returns>String containing C# code for BinaryExpression be.</returns>
|
|
private string GenerateBinaryExpression(BinaryExpression be)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
retstr += GenerateNode((SYMBOL) be.kids.Pop());
|
|
retstr += Generate(String.Format(" {0} ", be.ExpressionSymbol), be);
|
|
foreach (SYMBOL kid in be.kids)
|
|
retstr += GenerateNode(kid);
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a UnaryExpression node.
|
|
/// </summary>
|
|
/// <param name="ue">The UnaryExpression node.</param>
|
|
/// <returns>String containing C# code for UnaryExpression ue.</returns>
|
|
private string GenerateUnaryExpression(UnaryExpression ue)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
retstr += Generate(ue.UnarySymbol, ue);
|
|
retstr += GenerateNode((SYMBOL) ue.kids.Pop());
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a ParenthesisExpression node.
|
|
/// </summary>
|
|
/// <param name="pe">The ParenthesisExpression node.</param>
|
|
/// <returns>String containing C# code for ParenthesisExpression pe.</returns>
|
|
private string GenerateParenthesisExpression(ParenthesisExpression pe)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
retstr += Generate("(");
|
|
foreach (SYMBOL kid in pe.kids)
|
|
retstr += GenerateNode(kid);
|
|
retstr += Generate(")");
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a IncrementDecrementExpression node.
|
|
/// </summary>
|
|
/// <param name="ide">The IncrementDecrementExpression node.</param>
|
|
/// <returns>String containing C# code for IncrementDecrementExpression ide.</returns>
|
|
private string GenerateIncrementDecrementExpression(IncrementDecrementExpression ide)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
if (0 < ide.kids.Count)
|
|
{
|
|
IdentDotExpression dot = (IdentDotExpression) ide.kids.Top;
|
|
retstr += Generate(String.Format("{0}", ide.PostOperation ? dot.Name + "." + dot.Member + ide.Operation : ide.Operation + dot.Name + "." + dot.Member), ide);
|
|
}
|
|
else
|
|
retstr += Generate(String.Format("{0}", ide.PostOperation ? ide.Name + ide.Operation : ide.Operation + ide.Name), ide);
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a TypecastExpression node.
|
|
/// </summary>
|
|
/// <param name="te">The TypecastExpression node.</param>
|
|
/// <returns>String containing C# code for TypecastExpression te.</returns>
|
|
private string GenerateTypecastExpression(TypecastExpression te)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
// we wrap all typecasted statements in parentheses
|
|
retstr += Generate(String.Format("({0}) (", te.TypecastType), te);
|
|
retstr += GenerateNode((SYMBOL) te.kids.Pop());
|
|
retstr += Generate(")");
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a FunctionCall node.
|
|
/// </summary>
|
|
/// <param name="fc">The FunctionCall node.</param>
|
|
/// <returns>String containing C# code for FunctionCall fc.</returns>
|
|
private string GenerateFunctionCall(FunctionCall fc)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
retstr += Generate(String.Format("{0}(", fc.Id), fc);
|
|
|
|
foreach (SYMBOL kid in fc.kids)
|
|
retstr += GenerateNode(kid);
|
|
|
|
retstr += Generate(")");
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a Constant node.
|
|
/// </summary>
|
|
/// <param name="c">The Constant node.</param>
|
|
/// <returns>String containing C# code for Constant c.</returns>
|
|
private string GenerateConstant(Constant c)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
// Supprt LSL's weird acceptance of floats with no trailing digits
|
|
// after the period. Turn float x = 10.; into float x = 10.0;
|
|
if ("LSL_Types.LSLFloat" == c.Type)
|
|
{
|
|
int dotIndex = c.Value.IndexOf('.') + 1;
|
|
if (0 < dotIndex && (dotIndex == c.Value.Length || !Char.IsDigit(c.Value[dotIndex])))
|
|
c.Value = c.Value.Insert(dotIndex, "0");
|
|
c.Value = "new LSL_Types.LSLFloat("+c.Value+")";
|
|
}
|
|
else if ("LSL_Types.LSLInteger" == c.Type)
|
|
{
|
|
c.Value = "new LSL_Types.LSLInteger("+c.Value+")";
|
|
}
|
|
else if ("LSL_Types.LSLString" == c.Type)
|
|
{
|
|
c.Value = "new LSL_Types.LSLString(\""+c.Value+"\")";
|
|
}
|
|
|
|
retstr += Generate(c.Value, c);
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a VectorConstant node.
|
|
/// </summary>
|
|
/// <param name="vc">The VectorConstant node.</param>
|
|
/// <returns>String containing C# code for VectorConstant vc.</returns>
|
|
private string GenerateVectorConstant(VectorConstant vc)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
retstr += Generate(String.Format("new {0}(", vc.Type), vc);
|
|
retstr += GenerateNode((SYMBOL) vc.kids.Pop());
|
|
retstr += Generate(", ");
|
|
retstr += GenerateNode((SYMBOL) vc.kids.Pop());
|
|
retstr += Generate(", ");
|
|
retstr += GenerateNode((SYMBOL) vc.kids.Pop());
|
|
retstr += Generate(")");
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a RotationConstant node.
|
|
/// </summary>
|
|
/// <param name="rc">The RotationConstant node.</param>
|
|
/// <returns>String containing C# code for RotationConstant rc.</returns>
|
|
private string GenerateRotationConstant(RotationConstant rc)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
retstr += Generate(String.Format("new {0}(", rc.Type), rc);
|
|
retstr += GenerateNode((SYMBOL) rc.kids.Pop());
|
|
retstr += Generate(", ");
|
|
retstr += GenerateNode((SYMBOL) rc.kids.Pop());
|
|
retstr += Generate(", ");
|
|
retstr += GenerateNode((SYMBOL) rc.kids.Pop());
|
|
retstr += Generate(", ");
|
|
retstr += GenerateNode((SYMBOL) rc.kids.Pop());
|
|
retstr += Generate(")");
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the code for a ListConstant node.
|
|
/// </summary>
|
|
/// <param name="lc">The ListConstant node.</param>
|
|
/// <returns>String containing C# code for ListConstant lc.</returns>
|
|
private string GenerateListConstant(ListConstant lc)
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
retstr += Generate(String.Format("new {0}(", lc.Type), lc);
|
|
|
|
foreach (SYMBOL kid in lc.kids)
|
|
retstr += GenerateNode(kid);
|
|
|
|
retstr += Generate(")");
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Prints a newline.
|
|
/// </summary>
|
|
/// <returns>A newline.</returns>
|
|
private string GenerateLine()
|
|
{
|
|
return GenerateLine("");
|
|
}
|
|
|
|
/// <summary>
|
|
/// Prints text, followed by a newline.
|
|
/// </summary>
|
|
/// <param name="s">String of text to print.</param>
|
|
/// <returns>String s followed by newline.</returns>
|
|
private string GenerateLine(string s)
|
|
{
|
|
return GenerateLine(s, null);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Prints text, followed by a newline.
|
|
/// </summary>
|
|
/// <param name="s">String of text to print.</param>
|
|
/// <param name="sym">Symbol being generated to extract original line
|
|
/// number and column from.</param>
|
|
/// <returns>String s followed by newline.</returns>
|
|
private string GenerateLine(string s, SYMBOL sym)
|
|
{
|
|
string retstr = Generate(s, sym) + "\n";
|
|
|
|
m_CSharpLine++;
|
|
m_CSharpCol = 1;
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Prints text.
|
|
/// </summary>
|
|
/// <param name="s">String of text to print.</param>
|
|
/// <returns>String s.</returns>
|
|
private string Generate(string s)
|
|
{
|
|
return Generate(s, null);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Prints text.
|
|
/// </summary>
|
|
/// <param name="s">String of text to print.</param>
|
|
/// <param name="sym">Symbol being generated to extract original line
|
|
/// number and column from.</param>
|
|
/// <returns>String s.</returns>
|
|
private string Generate(string s, SYMBOL sym)
|
|
{
|
|
if (null != sym)
|
|
m_positionMap.Add(new KeyValuePair<int, int>(m_CSharpLine, m_CSharpCol), new KeyValuePair<int, int>(sym.Line, sym.Position));
|
|
|
|
m_CSharpCol += s.Length;
|
|
|
|
return s;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Prints text correctly indented, followed by a newline.
|
|
/// </summary>
|
|
/// <param name="s">String of text to print.</param>
|
|
/// <returns>Properly indented string s followed by newline.</returns>
|
|
private string GenerateIndentedLine(string s)
|
|
{
|
|
return GenerateIndentedLine(s, null);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Prints text correctly indented, followed by a newline.
|
|
/// </summary>
|
|
/// <param name="s">String of text to print.</param>
|
|
/// <param name="sym">Symbol being generated to extract original line
|
|
/// number and column from.</param>
|
|
/// <returns>Properly indented string s followed by newline.</returns>
|
|
private string GenerateIndentedLine(string s, SYMBOL sym)
|
|
{
|
|
string retstr = GenerateIndented(s, sym) + "\n";
|
|
|
|
m_CSharpLine++;
|
|
m_CSharpCol = 1;
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Prints text correctly indented.
|
|
/// </summary>
|
|
/// <param name="s">String of text to print.</param>
|
|
/// <returns>Properly indented string s.</returns>
|
|
//private string GenerateIndented(string s)
|
|
//{
|
|
// return GenerateIndented(s, null);
|
|
//}
|
|
// THIS FUNCTION IS COMMENTED OUT TO SUPPRESS WARNINGS
|
|
|
|
/// <summary>
|
|
/// Prints text correctly indented.
|
|
/// </summary>
|
|
/// <param name="s">String of text to print.</param>
|
|
/// <param name="sym">Symbol being generated to extract original line
|
|
/// number and column from.</param>
|
|
/// <returns>Properly indented string s.</returns>
|
|
private string GenerateIndented(string s, SYMBOL sym)
|
|
{
|
|
string retstr = Indent() + s;
|
|
|
|
if (null != sym)
|
|
m_positionMap.Add(new KeyValuePair<int, int>(m_CSharpLine, m_CSharpCol), new KeyValuePair<int, int>(sym.Line, sym.Position));
|
|
|
|
m_CSharpCol += s.Length;
|
|
|
|
return retstr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Prints correct indentation.
|
|
/// </summary>
|
|
/// <returns>Indentation based on brace count.</returns>
|
|
private string Indent()
|
|
{
|
|
string retstr = String.Empty;
|
|
|
|
for (int i = 0; i < m_braceCount; i++)
|
|
for (int j = 0; j < m_indentWidth; j++)
|
|
{
|
|
retstr += " ";
|
|
m_CSharpCol++;
|
|
}
|
|
|
|
return retstr;
|
|
}
|
|
}
|
|
}
|