Support around JSON-RPC (#2014)

* #include an absolute path didn't work - because paths were taken to always be relative.

* Use 'Process' to communicate with an command line tool.

* Remove slang-win-stream

* Tidy up windows ProcessUtil.

* First version of BufferedReadStream.

* Windows working IPC for steams.

* Test proxy count option.

* Split Process/ProcessUtil. Process is platform dependant. ProcessUtil are functions that are platform independent.

* First implementation of Unix Process interface.

* Unix process compiles on cygwin.

* Fix typo in unix process.

* Separate unix pipe stream error of invalid access, from pipe availability.

* Fix in standard line extraction.

* Make fd non blocking.

* Fix issues with Windows Process streams.

* Added UnixPipe.

* Some fixes around UnixPipeStream.

* Make a unix stream closed explicit.

* Hack to debug linux process/stream.

* Revert to old linux pipe handling.

* Pass executable path for unit tests.
Split out CommandLine into own source.

* Small improvements in process/command line.

* Check process behavior with crash.

* Make stderr and stdout unbuffered for crash testing.

* Only turn disable buffering in crash test.

* Disable crash test on CI.

* Fix crash on clang/linux.

* Enable crash test.
Remove _appendBuffer as can use StreamUtil functionality.

* Added inital processing for http headers.

* Small improvements to HttpHeader.

* First pass HTTPPacketConnection working on windows.

* Enable other Process communication tests.

* Update comments.

* WIP JSON RPC.

* Add terminate to Process.
Made JSONRPC a Util.

* Small tidy up around HTTPPacketConnection.

* Improve process termination options.

Co-authored-by: Yong He <yonghe@outlook.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/source/compiler-core/slang-json-lexer.cpp b/source/compiler-core/slang-json-lexer.cpp
index 9f96ef4f5..428afca63 100644
--- a/source/compiler-core/slang-json-lexer.cpp
+++ b/source/compiler-core/slang-json-lexer.cpp
@@ -10,6 +10,34 @@ https://www.json.org/json-en.html
 
 namespace Slang {
 
+/* static */UnownedStringSlice JSONLexer::calcLexemeLocation(const UnownedStringSlice& text)
+{
+    SourceManager sourceManager;
+    sourceManager.initialize(nullptr, nullptr);
+    DiagnosticSink sink;
+    sink.init(&sourceManager, nullptr);
+
+    String contents(text);
+    SourceFile* sourceFile = sourceManager.createSourceFileWithString(PathInfo::makeUnknown(), contents);
+    SourceView* sourceView = sourceManager.createSourceView(sourceFile, nullptr, SourceLoc());
+
+    JSONLexer lexer;
+
+    lexer.init(sourceView, &sink);
+
+    if (lexer.peekType() != JSONTokenType::Invalid)
+    {
+        // Get the start offset
+        auto offset = sourceView->getRange().getOffset(lexer.peekLoc());
+
+        return text.subString(offset, lexer.peekLexeme().getLength());
+    }
+    else
+    {
+        return text.head(0);
+    }
+}
+
 SlangResult JSONLexer::init(SourceView* sourceView, DiagnosticSink* sink) 
 {
     m_sourceView = sourceView;