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[incrParse] Reparse a node if the next leaf node has been modified

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This commit is contained in:
Alex Hoppen
2018-05-02 14:49:01 -07:00
parent de9737c946
commit 60d11d24f8
5 changed files with 129 additions and 5 deletions
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31
tools/swift-syntax-test/swift-syntax-test.cpp
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@@ -35,6 +35,7 @@
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Regex.h"
using namespace swift;
using namespace swift::syntax;
@@ -111,6 +112,17 @@ OldSyntaxTreeFilename("old-syntax-tree-filename",
llvm::cl::desc("Path to the serialized syntax tree of "
"the pre-edit file"));
static llvm::cl::list<std::string>
IncrementalEdits("incremental-edit",
llvm::cl::desc("An edit that was applied to reach the input "
"file from the source file that generated the "
"old syntax tree in the format "
"<start>:<end>=<replacement> where <start> and "
"<end> are byte offsets in the original file "
"and <replacement> is the string that shall "
"replace the selected range. "
"Can be passed multiple times."));
static llvm::cl::opt<std::string>
OutputFilename("output-filename",
llvm::cl::desc("Path to the output file"));
@@ -321,6 +333,25 @@ int doIncrementalParse(const char *MainExecutablePath,
}
SyntaxParsingCache *Cache = new SyntaxParsingCache(OldSyntaxTree.getValue());
for (auto EditPattern : options::IncrementalEdits) {
llvm::Regex MatchRegex("([0-9]+):([0-9]+)=(.*)");
SmallVector<StringRef, 4> Matches;
if (!MatchRegex.match(EditPattern, &Matches)) {
llvm::errs() << "Invalid edit pattern: " << EditPattern;
return EXIT_FAILURE;
}
int EditStart, EditEnd;
if (Matches[1].getAsInteger(10, EditStart)) {
llvm::errs() << "Could not parse edit start as integer: " << EditStart;
return EXIT_FAILURE;
}
if (Matches[2].getAsInteger(10, EditEnd)) {
llvm::errs() << "Could not parse edit end as integer: " << EditStart;
return EXIT_FAILURE;
}
Cache->addEdit(EditStart, EditEnd, /*ReplacmentLength=*/Matches[3].size());
}
// Parse the new libSyntax tree incrementally
CompilerInstance Instance;
SourceFile *SF =