public virtual string GetVisitorFileName(bool header)
{
AbstractTarget target = GetTarget();
if (target == null)
{
throw new NotSupportedException("Cannot generate code without a target.");
}
return(target.GetVisitorFileName(header));
}
public virtual void WriteBaseVisitor(Template outputFileST, bool header)
{
AbstractTarget target = GetTarget();
if (target == null)
{
throw new NotSupportedException("Cannot generate code without a target.");
}
target.GenFile(g, outputFileST, GetBaseVisitorFileName(header));
}
private Template Walk(OutputModelObject outputModel, bool header)
{
AbstractTarget target = GetTarget();
if (target == null)
{
throw new NotSupportedException("Cannot generate code without a target.");
}
OutputModelWalker walker = new OutputModelWalker(tool, target.GetTemplates());
return(walker.Walk(outputModel, header));
}
public virtual string GetHeaderFileName()
{
AbstractTarget target = GetTarget();
if (target == null)
{
throw new NotSupportedException("Cannot generate code without a target.");
}
Template extST = target.GetTemplates().GetInstanceOf("headerFileExtension");
if (extST == null)
{
return(null);
}
string recognizerName = g.GetRecognizerName();
return(recognizerName + extST.Render());
}
public virtual void WriteVocabFile()
{
AbstractTarget target = GetTarget();
if (target == null)
{
throw new NotSupportedException("Cannot generate code without a target.");
}
// write out the vocab interchange file; used by ANTLR,
// does not change per target
Template tokenVocabSerialization = GetTokenVocabOutput();
string fileName = GetVocabFileName();
if (fileName != null)
{
target.GenFile(g, tokenVocabSerialization, fileName);
}
}
public ErrorListener(AbstractTarget target)
{
this.target = target;
}
public virtual void BuildLeftRecursiveRuleFunction(LeftRecursiveRule r, LeftRecursiveRuleFunction function)
{
BuildNormalRuleFunction(r, function);
// now inject code to start alts
AbstractTarget target = @delegate.GetTarget();
TemplateGroup codegenTemplates = target.GetTemplates();
// pick out alt(s) for primaries
CodeBlockForOuterMostAlt outerAlt = (CodeBlockForOuterMostAlt)function.code[0];
IList <CodeBlockForAlt> primaryAltsCode = new List <CodeBlockForAlt>();
SrcOp primaryStuff = outerAlt.ops[0];
if (primaryStuff is Choice)
{
Choice primaryAltBlock = (Choice)primaryStuff;
foreach (var alt in primaryAltBlock.alts)
{
primaryAltsCode.Add(alt);
}
}
else
{ // just a single alt I guess; no block
primaryAltsCode.Add((CodeBlockForAlt)primaryStuff);
}
// pick out alt(s) for op alts
StarBlock opAltStarBlock = (StarBlock)outerAlt.ops[1];
CodeBlockForAlt altForOpAltBlock = opAltStarBlock.alts[0];
IList <CodeBlockForAlt> opAltsCode = new List <CodeBlockForAlt>();
SrcOp opStuff = altForOpAltBlock.ops[0];
if (opStuff is AltBlock)
{
AltBlock opAltBlock = (AltBlock)opStuff;
foreach (var alt in opAltBlock.alts)
{
opAltsCode.Add(alt);
}
}
else
{ // just a single alt I guess; no block
opAltsCode.Add((CodeBlockForAlt)opStuff);
}
// Insert code in front of each primary alt to create specialized context if there was a label
for (int i = 0; i < primaryAltsCode.Count; i++)
{
LeftRecursiveRuleAltInfo altInfo = r.recPrimaryAlts[i];
if (altInfo.altLabel == null)
{
continue;
}
Template altActionST = codegenTemplates.GetInstanceOf("recRuleReplaceContext");
altActionST.Add("ctxName", Utils.Capitalize(altInfo.altLabel));
AltLabelStructDecl ctx = null;
if (altInfo.altLabel != null)
{
function.altLabelCtxs.TryGetValue(altInfo.altLabel, out ctx);
}
Action altAction = new Action(@delegate, ctx, altActionST);
CodeBlockForAlt alt = primaryAltsCode[i];
alt.InsertOp(0, altAction);
}
// Insert code to set ctx.stop after primary block and before op * loop
Template setStopTokenAST = codegenTemplates.GetInstanceOf("recRuleSetStopToken");
Action setStopTokenAction = new Action(@delegate, function.ruleCtx, setStopTokenAST);
outerAlt.InsertOp(1, setStopTokenAction);
// Insert code to set _prevctx at start of * loop
Template setPrevCtx = codegenTemplates.GetInstanceOf("recRuleSetPrevCtx");
Action setPrevCtxAction = new Action(@delegate, function.ruleCtx, setPrevCtx);
opAltStarBlock.AddIterationOp(setPrevCtxAction);
// Insert code in front of each op alt to create specialized context if there was an alt label
for (int i = 0; i < opAltsCode.Count; i++)
{
Template altActionST;
LeftRecursiveRuleAltInfo altInfo = r.recOpAlts.GetElement(i);
string templateName;
if (altInfo.altLabel != null)
{
templateName = "recRuleLabeledAltStartAction";
altActionST = codegenTemplates.GetInstanceOf(templateName);
altActionST.Add("currentAltLabel", altInfo.altLabel);
}
else
{
templateName = "recRuleAltStartAction";
altActionST = codegenTemplates.GetInstanceOf(templateName);
altActionST.Add("ctxName", Utils.Capitalize(r.name));
}
altActionST.Add("ruleName", r.name);
// add label of any LR ref we deleted
altActionST.Add("label", altInfo.leftRecursiveRuleRefLabel);
if (altActionST.impl.FormalArguments.Any(x => x.Name == "isListLabel"))
{
altActionST.Add("isListLabel", altInfo.isListLabel);
}
else if (altInfo.isListLabel)
{
@delegate.GetGenerator().tool.errMgr.ToolError(ErrorType.CODE_TEMPLATE_ARG_ISSUE, templateName, "isListLabel");
}
AltLabelStructDecl ctx = null;
if (altInfo.altLabel != null)
{
function.altLabelCtxs.TryGetValue(altInfo.altLabel, out ctx);
}
Action altAction = new Action(@delegate, ctx, altActionST);
CodeBlockForAlt alt = opAltsCode[i];
alt.InsertOp(0, altAction);
}
}
public ErrorListener(AbstractTarget target)
{
this.target = target;
}
protected virtual void LoadLanguageTarget(string language)
{
string targetName = "Antlr4.Codegen.Target." + language + "Target";
try
{
Type c = Type.GetType(targetName, true);
target = (AbstractTarget)Activator.CreateInstance(c, this);
}
catch (TargetInvocationException e)
{
tool.errMgr.ToolError(ErrorType.CANNOT_CREATE_TARGET_GENERATOR,
e,
targetName);
}
catch (TypeLoadException e)
{
tool.errMgr.ToolError(ErrorType.CANNOT_CREATE_TARGET_GENERATOR,
e,
targetName);
}
catch (ArgumentException e)
{
tool.errMgr.ToolError(ErrorType.CANNOT_CREATE_TARGET_GENERATOR,
e,
targetName);
}
catch (InvalidCastException e)
{
tool.errMgr.ToolError(ErrorType.CANNOT_CREATE_TARGET_GENERATOR,
e,
targetName);
}
}
public virtual void Process()
{
CodeGenerator gen = new CodeGenerator(g);
AbstractTarget target = gen.GetTarget();
if (target == null)
{
return;
}
IntervalSet idTypes = new IntervalSet();
idTypes.Add(ANTLRParser.ID);
idTypes.Add(ANTLRParser.RULE_REF);
idTypes.Add(ANTLRParser.TOKEN_REF);
IList <GrammarAST> idNodes = g.ast.GetNodesWithType(idTypes);
foreach (GrammarAST idNode in idNodes)
{
if (target.GrammarSymbolCausesIssueInGeneratedCode(idNode))
{
g.tool.errMgr.GrammarError(ErrorType.USE_OF_BAD_WORD,
g.fileName, idNode.Token,
idNode.Text);
}
}
// all templates are generated in memory to report the most complete
// error information possible, but actually writing output files stops
// after the first error is reported
int errorCount = g.tool.errMgr.GetNumErrors();
if (g.IsLexer())
{
if (target.NeedsHeader())
{
Template lexerHeader = gen.GenerateLexer(true); // Header file if needed.
if (g.tool.errMgr.GetNumErrors() == errorCount)
{
WriteRecognizer(lexerHeader, gen, true);
}
}
Template lexer = gen.GenerateLexer(false);
if (g.tool.errMgr.GetNumErrors() == errorCount)
{
WriteRecognizer(lexer, gen, false);
}
}
else
{
if (target.NeedsHeader())
{
Template parserHeader = gen.GenerateParser(true);
if (g.tool.errMgr.GetNumErrors() == errorCount)
{
WriteRecognizer(parserHeader, gen, true);
}
}
Template parser = gen.GenerateParser(false);
if (g.tool.errMgr.GetNumErrors() == errorCount)
{
WriteRecognizer(parser, gen, false);
}
if (g.tool.gen_listener)
{
if (target.NeedsHeader())
{
Template listenerHeader = gen.GenerateListener(true);
if (g.tool.errMgr.GetNumErrors() == errorCount)
{
gen.WriteListener(listenerHeader, true);
}
}
Template listener = gen.GenerateListener(false);
if (g.tool.errMgr.GetNumErrors() == errorCount)
{
gen.WriteListener(listener, false);
}
if (target.NeedsHeader())
{
Template baseListener = gen.GenerateBaseListener(true);
if (g.tool.errMgr.GetNumErrors() == errorCount)
{
gen.WriteBaseListener(baseListener, true);
}
}
if (target.WantsBaseListener())
{
Template baseListener = gen.GenerateBaseListener(false);
if (g.tool.errMgr.GetNumErrors() == errorCount)
{
gen.WriteBaseListener(baseListener, false);
}
}
}
if (g.tool.gen_visitor)
{
if (target.NeedsHeader())
{
Template visitorHeader = gen.GenerateVisitor(true);
if (g.tool.errMgr.GetNumErrors() == errorCount)
{
gen.WriteVisitor(visitorHeader, true);
}
}
Template visitor = gen.GenerateVisitor(false);
if (g.tool.errMgr.GetNumErrors() == errorCount)
{
gen.WriteVisitor(visitor, false);
}
if (target.NeedsHeader())
{
Template baseVisitor = gen.GenerateBaseVisitor(true);
if (g.tool.errMgr.GetNumErrors() == errorCount)
{
gen.WriteBaseVisitor(baseVisitor, true);
}
}
if (target.WantsBaseVisitor())
{
Template baseVisitor = gen.GenerateBaseVisitor(false);
if (g.tool.errMgr.GetNumErrors() == errorCount)
{
gen.WriteBaseVisitor(baseVisitor, false);
}
}
}
}
gen.WriteVocabFile();
}
