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[Parser] Decouple the parser from AST creation (part 1)

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Instead of creating the AST directly in the parser (and libSyntax or
SwiftSyntax via SyntaxParsingContext), make Parser to explicitly create
a tree of ParsedSyntaxNodes. Their OpaqueSyntaxNodes can be either
libSyntax or SwiftSyntax. If AST is needed, it can be generated from the
libSyntax tree.
This commit is contained in:
Jan Svoboda
2019-06-01 16:34:48 +02:00
parent b2fd31daa1
commit 44d7769238
23 changed files with 902 additions and 306 deletions
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13
include/swift/Parse/ParsedRawSyntaxNode.h
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@@ -156,6 +156,19 @@ public:
// Deferred Token Data =====================================================//
CharSourceRange getDeferredTokenRangeWithTrivia() const {
assert(DK == DataKind::DeferredToken);
auto leadTriviaPieces = getDeferredLeadingTriviaPieces();
auto trailTriviaPieces = getDeferredTrailingTriviaPieces();
auto leadTriviaLen = ParsedTriviaPiece::getTotalLength(leadTriviaPieces);
auto trailTriviaLen = ParsedTriviaPiece::getTotalLength(trailTriviaPieces);
SourceLoc begin = DeferredToken.TokLoc.getAdvancedLoc(-leadTriviaLen);
unsigned len = leadTriviaLen + DeferredToken.TokLength + trailTriviaLen;
return CharSourceRange{begin, len};
}
CharSourceRange getDeferredTokenRangeWithoutBackticks() const {
assert(DK == DataKind::DeferredToken);
return CharSourceRange{DeferredToken.TokLoc, DeferredToken.TokLength};