Separate the notion of 'context' when recursing down in the parser and actual errors.
Summary:
Change how error messages are constructed and stored in Diagnostics.
Separate the notion of 'context' when recursing down in the parser and actual errors.
This will simplify adding some new features, like argument overloading and error recovery.
Reviewers: klimek
CC: cfe-commits, revane
Differential Revision: http://llvm-reviews.chandlerc.com/D1168
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186602 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ASTMatchers/Dynamic/Parser.cpp b/lib/ASTMatchers/Dynamic/Parser.cpp
index fc09a30..54424ce 100644
--- a/lib/ASTMatchers/Dynamic/Parser.cpp
+++ b/lib/ASTMatchers/Dynamic/Parser.cpp
@@ -162,8 +162,7 @@
SourceRange Range;
Range.Start = Result->Range.Start;
Range.End = currentLocation();
- Error->pushErrorFrame(Range, Error->ET_ParserUnsignedError)
- << Result->Text;
+ Error->addError(Range, Error->ET_ParserUnsignedError) << Result->Text;
Result->Kind = TokenInfo::TK_Error;
}
}
@@ -198,8 +197,7 @@
SourceRange Range;
Range.Start = Result->Range.Start;
Range.End = currentLocation();
- Error->pushErrorFrame(Range, Error->ET_ParserStringError)
- << ErrorText;
+ Error->addError(Range, Error->ET_ParserStringError) << ErrorText;
Result->Kind = TokenInfo::TK_Error;
}
@@ -239,7 +237,7 @@
assert(NameToken.Kind == TokenInfo::TK_Ident);
const TokenInfo OpenToken = Tokenizer->consumeNextToken();
if (OpenToken.Kind != TokenInfo::TK_OpenParen) {
- Error->pushErrorFrame(OpenToken.Range, Error->ET_ParserNoOpenParen)
+ Error->addError(OpenToken.Range, Error->ET_ParserNoOpenParen)
<< OpenToken.Text;
return false;
}
@@ -256,27 +254,24 @@
// We must find a , token to continue.
const TokenInfo CommaToken = Tokenizer->consumeNextToken();
if (CommaToken.Kind != TokenInfo::TK_Comma) {
- Error->pushErrorFrame(CommaToken.Range, Error->ET_ParserNoComma)
+ Error->addError(CommaToken.Range, Error->ET_ParserNoComma)
<< CommaToken.Text;
return false;
}
}
+ Diagnostics::Context Ctx(Diagnostics::Context::MatcherArg, Error,
+ NameToken.Text, NameToken.Range, Args.size() + 1);
ParserValue ArgValue;
ArgValue.Text = Tokenizer->peekNextToken().Text;
ArgValue.Range = Tokenizer->peekNextToken().Range;
- if (!parseExpressionImpl(&ArgValue.Value)) {
- Error->pushErrorFrame(NameToken.Range,
- Error->ET_ParserMatcherArgFailure)
- << (Args.size() + 1) << NameToken.Text;
- return false;
- }
+ if (!parseExpressionImpl(&ArgValue.Value)) return false;
Args.push_back(ArgValue);
}
if (EndToken.Kind == TokenInfo::TK_Eof) {
- Error->pushErrorFrame(OpenToken.Range, Error->ET_ParserNoCloseParen);
+ Error->addError(OpenToken.Range, Error->ET_ParserNoCloseParen);
return false;
}
@@ -293,35 +288,32 @@
// explicit about the syntax error.
if (BindToken.Kind != TokenInfo::TK_Ident ||
BindToken.Text != TokenInfo::ID_Bind) {
- Error->pushErrorFrame(BindToken.Range, Error->ET_ParserMalformedBindExpr);
+ Error->addError(BindToken.Range, Error->ET_ParserMalformedBindExpr);
return false;
}
if (OpenToken.Kind != TokenInfo::TK_OpenParen) {
- Error->pushErrorFrame(OpenToken.Range, Error->ET_ParserMalformedBindExpr);
+ Error->addError(OpenToken.Range, Error->ET_ParserMalformedBindExpr);
return false;
}
if (IDToken.Kind != TokenInfo::TK_Literal || !IDToken.Value.isString()) {
- Error->pushErrorFrame(IDToken.Range, Error->ET_ParserMalformedBindExpr);
+ Error->addError(IDToken.Range, Error->ET_ParserMalformedBindExpr);
return false;
}
if (CloseToken.Kind != TokenInfo::TK_CloseParen) {
- Error->pushErrorFrame(CloseToken.Range,
- Error->ET_ParserMalformedBindExpr);
+ Error->addError(CloseToken.Range, Error->ET_ParserMalformedBindExpr);
return false;
}
BindID = IDToken.Value.getString();
}
// Merge the start and end infos.
+ Diagnostics::Context Ctx(Diagnostics::Context::ConstructMatcher, Error,
+ NameToken.Text, NameToken.Range);
SourceRange MatcherRange = NameToken.Range;
MatcherRange.End = EndToken.Range.End;
MatcherList Result = S->actOnMatcherExpression(
NameToken.Text, MatcherRange, BindID, Args, Error);
- if (Result.empty()) {
- Error->pushErrorFrame(NameToken.Range, Error->ET_ParserMatcherFailure)
- << NameToken.Text;
- return false;
- }
+ if (Result.empty()) return false;
*Value = Result;
return true;
@@ -338,8 +330,8 @@
return parseMatcherExpressionImpl(Value);
case TokenInfo::TK_Eof:
- Error->pushErrorFrame(Tokenizer->consumeNextToken().Range,
- Error->ET_ParserNoCode);
+ Error->addError(Tokenizer->consumeNextToken().Range,
+ Error->ET_ParserNoCode);
return false;
case TokenInfo::TK_Error:
@@ -352,8 +344,7 @@
case TokenInfo::TK_Period:
case TokenInfo::TK_InvalidChar:
const TokenInfo Token = Tokenizer->consumeNextToken();
- Error->pushErrorFrame(Token.Range, Error->ET_ParserInvalidToken)
- << Token.Text;
+ Error->addError(Token.Range, Error->ET_ParserInvalidToken) << Token.Text;
return false;
}
@@ -392,8 +383,8 @@
CodeTokenizer Tokenizer(Code, Error);
if (!Parser(&Tokenizer, S, Error).parseExpressionImpl(Value)) return false;
if (Tokenizer.peekNextToken().Kind != TokenInfo::TK_Eof) {
- Error->pushErrorFrame(Tokenizer.peekNextToken().Range,
- Error->ET_ParserTrailingCode);
+ Error->addError(Tokenizer.peekNextToken().Range,
+ Error->ET_ParserTrailingCode);
return false;
}
return true;
@@ -412,11 +403,11 @@
if (!parseExpression(Code, S, &Value, Error))
return NULL;
if (!Value.isMatchers()) {
- Error->pushErrorFrame(SourceRange(), Error->ET_ParserNotAMatcher);
+ Error->addError(SourceRange(), Error->ET_ParserNotAMatcher);
return NULL;
}
if (Value.getMatchers().matchers().size() != 1) {
- Error->pushErrorFrame(SourceRange(), Error->ET_ParserOverloadedType)
+ Error->addError(SourceRange(), Error->ET_ParserOverloadedType)
<< Value.getTypeAsString();
return NULL;
}