Move c++ parsing code from slang-cpp-extractor to static library (#5675)

* Move c++ parsing code from slang-cpp-extractor to static library

* Format code

* Remove relative includes

---------

Co-authored-by: slangbot <ellieh+slangbot@nvidia.com>
Co-authored-by: Yong He <yonghe@outlook.com>

1 files changed, 101 insertions, 0 deletions

diff --git a/tools/slang-cpp-parser/node-tree.h b/tools/slang-cpp-parser/node-tree.h
new file mode 100644
index 000000000..8911d0d71
--- /dev/null
+++ b/tools/slang-cpp-parser/node-tree.h
@@ -0,0 +1,101 @@
+#pragma once
+
+#include "compiler-core/slang-lexer.h"
+#include "diagnostics.h"
+#include "identifier-lookup.h"
+#include "node.h"
+
+namespace CppParse
+{
+using namespace Slang;
+
+class TypeSet : public RefObject
+{
+public:
+    /// This is the looked up name.
+    UnownedStringSlice
+        m_macroName; ///< The name extracted from the macro SLANG_ABSTRACT_AST_CLASS -> AST
+
+    String m_typeName; ///< The enum type name associated with this type for AST it is ASTNode
+    String m_fileMark; ///< This 'mark' becomes of the output filename
+
+    List<ClassLikeNode*> m_baseTypes; ///< The base types for this type set
+};
+
+class SourceOrigin : public RefObject
+{
+public:
+    void addNode(Node* node)
+    {
+        if (auto classLike = as<ClassLikeNode>(node))
+        {
+            SLANG_ASSERT(classLike->m_origin == nullptr);
+            classLike->m_origin = this;
+        }
+
+        m_nodes.add(node);
+    }
+
+    SourceOrigin(SourceFile* sourceFile, const String& macroOrigin)
+        : m_sourceFile(sourceFile), m_macroOrigin(macroOrigin)
+    {
+    }
+
+    String m_macroOrigin; ///< The macro text is inserted into the macro to identify the origin. It
+                          ///< is based on the filename
+    SourceFile* m_sourceFile; ///< The source file - also holds the path information
+
+    /// All of the nodes defined in this file in the order they were defined
+    /// Note that the same namespace may be listed multiple times.
+    List<RefPtr<Node>> m_nodes;
+};
+
+struct Options;
+class IdentifierLookup;
+
+/* NodeTree holds nodes that have been parsed into a tree rooted on the 'rootNode'.
+Also contains other state associated with or useful to a node tree */
+class NodeTree
+{
+public:
+    friend class Parser;
+    /// Get all of the parsed source origins
+    const List<RefPtr<SourceOrigin>>& getSourceOrigins() const { return m_sourceOrigins; }
+
+    TypeSet* getTypeSet(const UnownedStringSlice& slice);
+    TypeSet* getOrAddTypeSet(const UnownedStringSlice& slice);
+
+    SourceOrigin* addSourceOrigin(SourceFile* sourceFile, const Options& options);
+
+    /// Get all of the type sets
+    const List<RefPtr<TypeSet>>& getTypeSets() const { return m_typeSets; }
+
+    /// Get the root node
+    Node* getRootNode() const { return m_rootNode; }
+
+    /// When parsing we don't lookup all up super types/add derived types. This is because
+    /// we allow files to be processed in any order, so we have to do the type lookup as a separate
+    /// operation
+    SlangResult calcDerivedTypes(DiagnosticSink* sink);
+
+    NodeTree(StringSlicePool* typePool, NamePool* namePool, IdentifierLookup* identifierLookup);
+
+    static String calcMacroOrigin(const String& filePath, const Options& options);
+
+protected:
+    SlangResult _calcDerivedTypesRec(ScopeNode* node, DiagnosticSink* sink);
+
+    StringSlicePool m_typeSetPool;    ///< Pool for type set names
+    List<RefPtr<TypeSet>> m_typeSets; ///< The type sets
+
+    IdentifierLookup* m_identifierLookup;
+    StringSlicePool* m_typePool; ///< Pool for just types
+
+    NamePool* m_namePool;
+
+    RefPtr<ScopeNode> m_rootNode; ///< The root scope
+
+    List<RefPtr<SourceOrigin>> m_sourceOrigins;
+};
+
+} // namespace CppParse