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[libSyntax] Add a dumpStack method to SyntaxParsingContext #37240

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Merged
merged 1 commit into from
May 5, 2021
Merged

[libSyntax] Add a dumpStack method to SyntaxParsingContext #37240

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11 changes: 11 additions & 0 deletions include/swift/Parse/SyntaxParsingContext.h
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,14 @@ enum class SyntaxContextKind {
Syntax,
};

} // end namespace swift

namespace llvm {
raw_ostream &operator<<(raw_ostream &OS, swift::SyntaxContextKind Kind);
} // end namespace llvm

namespace swift {

enum class SyntaxNodeCreationKind {
/// This is for \c SyntaxParsingContext to collect the syntax data and create
/// a 'recorded' ParsedRawSyntaxNode object, which would be a result of
Expand Down Expand Up @@ -355,6 +363,9 @@ class alignas(1 << SyntaxAlignInBits) SyntaxParsingContext {

/// Dump the nodes that are in the storage stack of the SyntaxParsingContext
SWIFT_DEBUG_DUMPER(dumpStorage());

void dumpStack(llvm::raw_ostream &OS) const;
SWIFT_DEBUG_DUMPER(dumpStack()) { dumpStack(llvm::errs()); }
};

} // namespace swift
Expand Down
58 changes: 58 additions & 0 deletions lib/Parse/SyntaxParsingContext.cpp
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Expand Up @@ -25,10 +25,36 @@
#include "swift/Parse/SyntaxParsingCache.h"
#include "swift/Parse/Token.h"
#include "swift/Syntax/SyntaxFactory.h"
#include "llvm/Support/raw_ostream.h"

using namespace swift;
using namespace swift::syntax;

llvm::raw_ostream &llvm::operator<<(llvm::raw_ostream &OS,
SyntaxContextKind Kind) {
switch (Kind) {
case SyntaxContextKind::Decl:
OS << "Decl";
break;
case SyntaxContextKind::Stmt:
OS << "Stmt";
break;
case SyntaxContextKind::Expr:
OS << "Expr";
break;
case SyntaxContextKind::Type:
OS << "Type";
break;
case SyntaxContextKind::Pattern:
OS << "Pattern";
break;
case SyntaxContextKind::Syntax:
OS << "Syntax";
break;
}
return OS;
}

void SyntaxParseActions::_anchor() {}

using RootContextData = SyntaxParsingContext::RootContextData;
Expand Down Expand Up @@ -356,6 +382,38 @@ void SyntaxParsingContext::dumpStorage() const {
}
}

void SyntaxParsingContext::dumpStack(llvm::raw_ostream &OS) const {
if (!isRoot()) {
getParent()->dumpStack(OS);
}
switch (Mode) {
case AccumulationMode::CreateSyntax:
llvm::errs() << "CreateSyntax (" << SynKind << ")\n";
break;
case AccumulationMode::DeferSyntax:
llvm::errs() << "DeferSyntax (" << SynKind << ")\n";
break;
case AccumulationMode::CoerceKind:
llvm::errs() << "CoerceKind (" << CtxtKind << ")\n";
break;
case AccumulationMode::Transparent:
llvm::errs() << "Transparent\n";
break;
case AccumulationMode::Discard:
llvm::errs() << "Discard\n";
break;
case AccumulationMode::SkippedForIncrementalUpdate:
llvm::errs() << "SkippedForIncrementalUpdate\n";
break;
case AccumulationMode::Root:
llvm::errs() << "Root\n";
break;
case AccumulationMode::NotSet:
llvm::errs() << "NotSet\n";
break;
}
}

SyntaxParsingContext::~SyntaxParsingContext() {
assert(isTopOfContextStack() && "destructed in wrong order");

Expand Down