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248 lines (215 loc) · 7.01 KB
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namespace Tvl.VisualStudio.Language.Java
{
using System;
using Antlr.Runtime;
using Microsoft.VisualStudio.Text;
using Tvl.VisualStudio.Language.Parsing;
// package com.sun.tools.javac.antlr;
// import com.sun.tools.javac.tree.JCTree.*;
// import com.sun.tools.javac.tree.JCTree;
// import com.sun.tools.javac.tree.TreeMaker;
// import com.sun.tools.javac.util.Context;
// import com.sun.tools.javac.util.*;
// import com.sun.tools.javac.code.*;
// import com.sun.tools.javac.code.TypeTags;
partial class Java2Parser
{
public event EventHandler<ParseErrorEventArgs> ParseError;
protected bool EnumSupported
{
get
{
return true;
//return source.allowEnums;
}
}
protected bool AssertSupported
{
get
{
return true;
//return source.allowAsserts;
}
}
protected bool VarArgSupported
{
get
{
return true;
//return source.allowVarargs;
}
}
protected bool ForeachSupported
{
get
{
return true;
//return source.allowForeach;
}
}
protected bool StaticImportSupported
{
get
{
return true;
//return source.allowStaticImport;
}
}
protected bool AnnotationSupported
{
get
{
return true;
//return source.allowAnnotations;
}
}
protected bool GenericSupported
{
get
{
return true;
//return source.allowGenerics;
}
}
public override void DisplayRecognitionError(string[] tokenNames, RecognitionException e)
{
string header = GetErrorHeader(e);
string message = GetErrorMessage(e, tokenNames);
Span span = new Span();
if (e.Token != null)
span = Span.FromBounds(e.Token.StartIndex, e.Token.StopIndex + 1);
ParseErrorEventArgs args = new ParseErrorEventArgs(message, span);
OnParseError(args);
base.DisplayRecognitionError(tokenNames, e);
}
protected virtual void OnParseError(ParseErrorEventArgs e)
{
var t = ParseError;
if (t != null)
t(this, e);
}
#if false
bool debug = true;
// temp variables
private int ti = 0;
private string ts = null;
public Java2Parser(ITokenStream input, AntlrParserFactory fac, bool keepDocComments, bool keepEndPosition, bool keepLineMap, char[] rawInput)
{
this(input);
//NOTE: Don't try to put this in super class constructor, must call the antlr generated constructor first.
super.init(fac, keepDocComments, keepEndPosition, keepLineMap, rawInput);
}
public JCCompilationUnit parseCompilationUnit()
{
if (super.isLexingError() == true)
{
// Errors should be logged in lexer already, no more parsing.
return TREE_BLANK;
}
if (input.LA(1) == -1)
{
// Blank input, end of file reached.
return TREE_BLANK;
}
try
{
return this.compilationUnit().tree;
}
catch (Exception e)
{
if (debug)
{
e.printStackTrace();
}
//TODO: could be various reasons, how to track?
log.error(0, "premature.eof");
return TREE_BLANK;
}
}
protected bool enumSupported()
{
return source.allowGenerics();
}
protected bool assertSupported()
{
return source.allowAsserts();
}
protected bool varArgSupported()
{
return source.allowVarargs();
}
protected bool foreachSupported()
{
return source.allowForeach();
}
protected bool staticImportSupported()
{
return source.allowStaticImport();
}
protected bool annotationSupported()
{
return source.allowAnnotations();
}
protected bool genericSupported()
{
return source.allowGenerics();
}
protected void checkEnum(IToken token)
{
if (enumSupported() == false && enumErrorDisplayed == false)
{
log.error(((AntlrJavacToken)token).getStartIndex(), "enums.not.supported.in.source", source.name);
enumErrorDisplayed = true;
}
}
protected void checkAssert(IToken token)
{
if (assertSupported() == false && assertErrorDisplayed == false)
{
log.error(((AntlrJavacToken)token).getStartIndex(), "assert.as.identifier", source.name);
assertErrorDisplayed = true;
}
}
protected void checkVarArg(IToken token)
{
if (varArgSupported() == false && varArgErrorDisplayed == false)
{
log.error(((AntlrJavacToken)token).getStartIndex(), "varargs.not.supported.in.source", source.name);
varArgErrorDisplayed = true;
}
}
protected void checkForeach(IToken token)
{
if (foreachSupported() == false && foreachErrorDisplayed == false)
{
log.error(((AntlrJavacToken)token).getStartIndex(), "foreach.not.supported.in.source", source.name);
foreachErrorDisplayed = true;
}
}
protected void checkStaticImport(IToken token)
{
if (staticImportSupported() == false && staticImportErrorDisplayed == false)
{
log.error(((AntlrJavacToken)token).getStartIndex(), "static.import.not.supported.in.source", source.name);
staticImportErrorDisplayed = true;
}
}
protected void checkAnnotation(IToken token)
{
if (annotationSupported() == false && annotationErrorDisplayed == false)
{
log.error(((AntlrJavacToken)token).getStartIndex(), "annotations.not.supported.in.source", source.name);
annotationErrorDisplayed = true;
}
}
protected void checkGeneric(IToken token)
{
if (genericSupported() == false && genericErrorDisplayed == false)
{
log.error(((AntlrJavacToken)token).getStartIndex(), "generics.not.supported.in.source", source.name);
genericErrorDisplayed = true;
}
}
#endif
}
}