hokein updated this revision to Diff 435483.
hokein added a comment.
update missing files.
Repository:
rG LLVM Github Monorepo
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https://reviews.llvm.org/D127388/new/
https://reviews.llvm.org/D127388
Files:
clang-tools-extra/pseudo/fuzzer/Fuzzer.cpp
clang-tools-extra/pseudo/gen/Main.cpp
clang-tools-extra/pseudo/include/clang-pseudo/Forest.h
clang-tools-extra/pseudo/include/clang-pseudo/GLR.h
clang-tools-extra/pseudo/include/clang-pseudo/Grammar.h
clang-tools-extra/pseudo/include/clang-pseudo/LRGraph.h
clang-tools-extra/pseudo/include/clang-pseudo/LRTable.h
clang-tools-extra/pseudo/include/clang-pseudo/cxx/CXX.h
clang-tools-extra/pseudo/include/clang-pseudo/grammar/Grammar.h
clang-tools-extra/pseudo/include/clang-pseudo/grammar/LRGraph.h
clang-tools-extra/pseudo/include/clang-pseudo/grammar/LRTable.h
clang-tools-extra/pseudo/lib/GLR.cpp
clang-tools-extra/pseudo/lib/cxx/CXX.cpp
clang-tools-extra/pseudo/lib/grammar/Grammar.cpp
clang-tools-extra/pseudo/lib/grammar/GrammarBNF.cpp
clang-tools-extra/pseudo/lib/grammar/LRGraph.cpp
clang-tools-extra/pseudo/lib/grammar/LRTable.cpp
clang-tools-extra/pseudo/lib/grammar/LRTableBuild.cpp
clang-tools-extra/pseudo/tool/ClangPseudo.cpp
clang-tools-extra/pseudo/unittests/GLRTest.cpp
clang-tools-extra/pseudo/unittests/GrammarTest.cpp
clang-tools-extra/pseudo/unittests/LRTableTest.cpp
Index: clang-tools-extra/pseudo/unittests/LRTableTest.cpp
===================================================================
--- clang-tools-extra/pseudo/unittests/LRTableTest.cpp
+++ clang-tools-extra/pseudo/unittests/LRTableTest.cpp
@@ -6,8 +6,8 @@
//
//===----------------------------------------------------------------------===//
-#include "clang-pseudo/LRTable.h"
-#include "clang-pseudo/Grammar.h"
+#include "clang-pseudo/grammar/LRTable.h"
+#include "clang-pseudo/grammar/Grammar.h"
#include "clang/Basic/TokenKinds.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
Index: clang-tools-extra/pseudo/unittests/GrammarTest.cpp
===================================================================
--- clang-tools-extra/pseudo/unittests/GrammarTest.cpp
+++ clang-tools-extra/pseudo/unittests/GrammarTest.cpp
@@ -6,7 +6,7 @@
//
//===----------------------------------------------------------------------===//
-#include "clang-pseudo/Grammar.h"
+#include "clang-pseudo/grammar/Grammar.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <memory>
Index: clang-tools-extra/pseudo/unittests/GLRTest.cpp
===================================================================
--- clang-tools-extra/pseudo/unittests/GLRTest.cpp
+++ clang-tools-extra/pseudo/unittests/GLRTest.cpp
@@ -7,7 +7,7 @@
//===----------------------------------------------------------------------===//
#include "clang-pseudo/GLR.h"
-#include "clang-pseudo/Grammar.h"
+#include "clang-pseudo/grammar/Grammar.h"
#include "clang-pseudo/Token.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Basic/TokenKinds.h"
Index: clang-tools-extra/pseudo/tool/ClangPseudo.cpp
===================================================================
--- clang-tools-extra/pseudo/tool/ClangPseudo.cpp
+++ clang-tools-extra/pseudo/tool/ClangPseudo.cpp
@@ -9,10 +9,10 @@
#include "clang-pseudo/Bracket.h"
#include "clang-pseudo/DirectiveTree.h"
#include "clang-pseudo/GLR.h"
-#include "clang-pseudo/Grammar.h"
-#include "clang-pseudo/LRGraph.h"
-#include "clang-pseudo/LRTable.h"
#include "clang-pseudo/Token.h"
+#include "clang-pseudo/grammar/Grammar.h"
+#include "clang-pseudo/grammar/LRGraph.h"
+#include "clang-pseudo/grammar/LRTable.h"
#include "clang/Basic/LangOptions.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/CommandLine.h"
Index: clang-tools-extra/pseudo/lib/grammar/LRTableBuild.cpp
===================================================================
--- clang-tools-extra/pseudo/lib/grammar/LRTableBuild.cpp
+++ clang-tools-extra/pseudo/lib/grammar/LRTableBuild.cpp
@@ -6,9 +6,9 @@
//
//===----------------------------------------------------------------------===//
-#include "clang-pseudo/Grammar.h"
-#include "clang-pseudo/LRGraph.h"
-#include "clang-pseudo/LRTable.h"
+#include "clang-pseudo/grammar/Grammar.h"
+#include "clang-pseudo/grammar/LRGraph.h"
+#include "clang-pseudo/grammar/LRTable.h"
#include "clang/Basic/TokenKinds.h"
#include <cstdint>
Index: clang-tools-extra/pseudo/lib/grammar/LRTable.cpp
===================================================================
--- clang-tools-extra/pseudo/lib/grammar/LRTable.cpp
+++ clang-tools-extra/pseudo/lib/grammar/LRTable.cpp
@@ -6,8 +6,8 @@
//
//===----------------------------------------------------------------------===//
-#include "clang-pseudo/LRTable.h"
-#include "clang-pseudo/Grammar.h"
+#include "clang-pseudo/grammar/LRTable.h"
+#include "clang-pseudo/grammar/Grammar.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/ErrorHandling.h"
Index: clang-tools-extra/pseudo/lib/grammar/LRGraph.cpp
===================================================================
--- clang-tools-extra/pseudo/lib/grammar/LRGraph.cpp
+++ clang-tools-extra/pseudo/lib/grammar/LRGraph.cpp
@@ -6,8 +6,8 @@
//
//===----------------------------------------------------------------------===//
-#include "clang-pseudo/LRGraph.h"
-#include "clang-pseudo/Grammar.h"
+#include "clang-pseudo/grammar/LRGraph.h"
+#include "clang-pseudo/grammar/Grammar.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/Hashing.h"
#include "llvm/ADT/STLExtras.h"
Index: clang-tools-extra/pseudo/lib/grammar/GrammarBNF.cpp
===================================================================
--- clang-tools-extra/pseudo/lib/grammar/GrammarBNF.cpp
+++ clang-tools-extra/pseudo/lib/grammar/GrammarBNF.cpp
@@ -6,7 +6,7 @@
//
//===----------------------------------------------------------------------===//
-#include "clang-pseudo/Grammar.h"
+#include "clang-pseudo/grammar/Grammar.h"
#include "clang/Basic/TokenKinds.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/STLExtras.h"
Index: clang-tools-extra/pseudo/lib/grammar/Grammar.cpp
===================================================================
--- clang-tools-extra/pseudo/lib/grammar/Grammar.cpp
+++ clang-tools-extra/pseudo/lib/grammar/Grammar.cpp
@@ -6,7 +6,7 @@
//
//===----------------------------------------------------------------------===//
-#include "clang-pseudo/Grammar.h"
+#include "clang-pseudo/grammar/Grammar.h"
#include "clang/Basic/TokenKinds.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/STLExtras.h"
Index: clang-tools-extra/pseudo/lib/cxx/CXX.cpp
===================================================================
--- clang-tools-extra/pseudo/lib/cxx/CXX.cpp
+++ clang-tools-extra/pseudo/lib/cxx/CXX.cpp
@@ -7,7 +7,7 @@
//===----------------------------------------------------------------------===//
#include "clang-pseudo/cxx/CXX.h"
-#include "clang-pseudo/LRTable.h"
+#include "clang-pseudo/grammar/LRTable.h"
namespace clang {
namespace pseudo {
Index: clang-tools-extra/pseudo/lib/GLR.cpp
===================================================================
--- clang-tools-extra/pseudo/lib/GLR.cpp
+++ clang-tools-extra/pseudo/lib/GLR.cpp
@@ -7,8 +7,8 @@
//===----------------------------------------------------------------------===//
#include "clang-pseudo/GLR.h"
-#include "clang-pseudo/Grammar.h"
-#include "clang-pseudo/LRTable.h"
+#include "clang-pseudo/grammar/Grammar.h"
+#include "clang-pseudo/grammar/LRTable.h"
#include "clang/Basic/TokenKinds.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/STLExtras.h"
Index: clang-tools-extra/pseudo/include/clang-pseudo/grammar/LRTable.h
===================================================================
--- clang-tools-extra/pseudo/include/clang-pseudo/grammar/LRTable.h
+++ clang-tools-extra/pseudo/include/clang-pseudo/grammar/LRTable.h
@@ -36,7 +36,7 @@
#ifndef CLANG_PSEUDO_LRTABLE_H
#define CLANG_PSEUDO_LRTABLE_H
-#include "clang-pseudo/Grammar.h"
+#include "clang-pseudo/grammar/Grammar.h"
#include "llvm/ADT/ArrayRef.h"
#include <cstdint>
#include <vector>
Index: clang-tools-extra/pseudo/include/clang-pseudo/grammar/LRGraph.h
===================================================================
--- clang-tools-extra/pseudo/include/clang-pseudo/grammar/LRGraph.h
+++ clang-tools-extra/pseudo/include/clang-pseudo/grammar/LRGraph.h
@@ -31,7 +31,7 @@
#ifndef CLANG_PSEUDO_LRGRAPH_H
#define CLANG_PSEUDO_LRGRAPH_H
-#include "clang-pseudo/Grammar.h"
+#include "clang-pseudo/grammar/Grammar.h"
#include "llvm/ADT/Hashing.h"
#include <vector>
Index: clang-tools-extra/pseudo/include/clang-pseudo/Grammar.h
===================================================================
--- /dev/null
+++ clang-tools-extra/pseudo/include/clang-pseudo/Grammar.h
@@ -1,224 +0,0 @@
-//===--- Grammar.h - grammar used by clang pseudoparser ---------*- C++-*-===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines base structures for parsing & modeling a grammar for a
-// programming language:
-//
-// # This is a fake C++ BNF grammar
-// _ := translation-unit
-// translation-unit := declaration-seq_opt
-// declaration-seq := declaration
-// declaration-seq := declaration-seq declaration
-//
-// A grammar formally describes a language, and it is constructed by a set of
-// production rules. A rule is of BNF form (AAA := BBB CCC). A symbol is either
-// nonterminal or terminal, identified by a SymbolID.
-//
-// Annotations are supported in a syntax form of [key=value]. They specify
-// attributes which are associated with either a grammar symbol (on the
-// right-hand side of the symbol) or a grammar rule (at the end of the rule
-// body).
-// Attributes provide a way to inject custom code into the GLR parser. Each
-// unique attribute value creates an extension point (identified by ExtensionID
-// ), and an extension point corresponds to a piece of native code. For
-// example, C++ grammar has a rule:
-//
-// contextual-override := IDENTIFIER [guard=Override]
-//
-// GLR parser only conducts the reduction of the rule if the IDENTIFIER
-// content is `override`. This Override guard is implemented in CXX.cpp by
-// binding the ExtensionID for the `Override` value to a specific C++ function
-// that performs the check.
-//
-// Notions about the BNF grammar:
-// - "_" is the start symbol of the augmented grammar;
-// - single-line comment is supported, starting with a #
-// - A rule describes how a nonterminal (left side of :=) is constructed, and
-// it is *per line* in the grammar file
-// - Terminals (also called tokens) correspond to the clang::TokenKind; they
-// are written in the grammar like "IDENTIFIER", "USING", "+"
-// - Nonterminals are specified with "lower-case" names in the grammar; they
-// shouldn't be nullable (has an empty sequence)
-// - optional symbols are supported (specified with a _opt suffix), and they
-// will be eliminated during the grammar parsing stage
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef CLANG_PSEUDO_GRAMMAR_H
-#define CLANG_PSEUDO_GRAMMAR_H
-
-#include "clang/Basic/TokenKinds.h"
-#include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/DenseSet.h"
-#include "llvm/ADT/Optional.h"
-#include "llvm/ADT/StringRef.h"
-#include <cstdint>
-#include <vector>
-
-namespace clang {
-namespace pseudo {
-// A SymbolID uniquely identifies a terminal/nonterminal symbol in a grammar.
-// nonterminal IDs are indexes into a table of nonterminal symbols.
-// Terminal IDs correspond to the clang TokenKind enum.
-using SymbolID = uint16_t;
-// SymbolID is only 12 bits wide.
-// There are maximum 2^11 terminals (aka tokens) and 2^11 nonterminals.
-static constexpr uint16_t SymbolBits = 12;
-static constexpr uint16_t NumTerminals = tok::NUM_TOKENS;
-// SymbolIDs with the top bit set are tokens/terminals.
-static constexpr SymbolID TokenFlag = 1 << (SymbolBits - 1);
-inline bool isToken(SymbolID ID) { return ID & TokenFlag; }
-inline bool isNonterminal(SymbolID ID) { return !isToken(ID); }
-// The terminals are always the clang tok::TokenKind (not all are used).
-inline tok::TokenKind symbolToToken(SymbolID SID) {
- assert(isToken(SID));
- SID &= ~TokenFlag;
- assert(SID < NumTerminals);
- return static_cast<tok::TokenKind>(SID);
-}
-inline SymbolID tokenSymbol(tok::TokenKind TK) {
- return TokenFlag | static_cast<SymbolID>(TK);
-}
-
-// An extension is a piece of native code specific to a grammar that modifies
-// the behavior of annotated rules. One ExtensionID is assigned for each unique
-// attribute value (all attributes share a namespace).
-using ExtensionID = uint16_t;
-
-// A RuleID uniquely identifies a production rule in a grammar.
-// It is an index into a table of rules.
-using RuleID = uint16_t;
-// There are maximum 2^12 rules.
-static constexpr unsigned RuleBits = 12;
-
-// Represent a production rule in the grammar, e.g.
-// expression := a b c
-// ^Target ^Sequence
-struct Rule {
- Rule(SymbolID Target, llvm::ArrayRef<SymbolID> Seq);
-
- // We occupy 4 bits for the sequence, in theory, it can be at most 2^4 tokens
- // long, however, we're stricter in order to reduce the size, we limit the max
- // length to 9 (this is the longest sequence in cxx grammar).
- static constexpr unsigned SizeBits = 4;
- static constexpr unsigned MaxElements = 9;
- static_assert(MaxElements <= (1 << SizeBits), "Exceeds the maximum limit");
- static_assert(SizeBits + SymbolBits <= 16,
- "Must be able to store symbol ID + size efficiently");
-
- // 16 bits for target symbol and size of sequence:
- // SymbolID : 12 | Size : 4
- SymbolID Target : SymbolBits;
- uint8_t Size : SizeBits; // Size of the Sequence
- SymbolID Sequence[MaxElements];
-
- // A guard extension controls whether a reduction of a rule will be conducted
- // by the GLR parser.
- // 0 is sentinel unset extension ID, indicating there is no guard extension
- // being set for this rule.
- ExtensionID Guard = 0;
-
- llvm::ArrayRef<SymbolID> seq() const {
- return llvm::ArrayRef<SymbolID>(Sequence, Size);
- }
- friend bool operator==(const Rule &L, const Rule &R) {
- return L.Target == R.Target && L.seq() == R.seq() && L.Guard == R.Guard;
- }
-};
-
-struct GrammarTable;
-
-// Grammar that describes a programming language, e.g. C++. It represents the
-// contents of the specified grammar.
-// It is a building block for constructing a table-based parser.
-class Grammar {
-public:
- explicit Grammar(std::unique_ptr<GrammarTable>);
-
- // Parses grammar from a BNF file.
- // Diagnostics emitted during parsing are stored in Diags.
- static std::unique_ptr<Grammar> parseBNF(llvm::StringRef BNF,
- std::vector<std::string> &Diags);
-
- // Returns the SymbolID of the symbol '_'.
- SymbolID underscore() const { return Underscore; };
-
- // Returns all rules of the given nonterminal symbol.
- llvm::ArrayRef<Rule> rulesFor(SymbolID SID) const;
- const Rule &lookupRule(RuleID RID) const;
-
- // Gets symbol (terminal or nonterminal) name.
- // Terminals have names like "," (kw_comma) or "OPERATOR" (kw_operator).
- llvm::StringRef symbolName(SymbolID) const;
-
- // Lookup the SymbolID of the nonterminal symbol by Name.
- llvm::Optional<SymbolID> findNonterminal(llvm::StringRef Name) const;
-
- // Dumps the whole grammar.
- std::string dump() const;
- // Dumps a particular rule.
- std::string dumpRule(RuleID) const;
- // Dumps all rules of the given nonterminal symbol.
- std::string dumpRules(SymbolID) const;
-
- const GrammarTable &table() const { return *T; }
-
-private:
- std::unique_ptr<GrammarTable> T;
- // The symbol ID of '_'. (In the LR literature, this is the start symbol of
- // the augmented grammar.)
- SymbolID Underscore;
-};
-// For each nonterminal X, computes the set of terminals that begin strings
-// derived from X. (Known as FIRST sets in grammar-based parsers).
-std::vector<llvm::DenseSet<SymbolID>> firstSets(const Grammar &);
-// For each nonterminal X, computes the set of terminals that could immediately
-// follow X. (Known as FOLLOW sets in grammar-based parsers).
-std::vector<llvm::DenseSet<SymbolID>> followSets(const Grammar &);
-
-// Storage for the underlying data of the Grammar.
-// It can be constructed dynamically (from compiling BNF file) or statically
-// (a compiled data-source).
-struct GrammarTable {
- GrammarTable();
-
- struct Nonterminal {
- std::string Name;
- // Corresponding rules that construct the nonterminal, it is a [Start, End)
- // index range of the Rules table.
- struct {
- RuleID Start;
- RuleID End;
- } RuleRange;
- };
-
- // RuleID is an index into this table of rule definitions.
- //
- // Rules with the same target symbol (LHS) are grouped into a single range.
- // The relative order of different target symbols is *not* by SymbolID, but
- // rather a topological sort: if S := T then the rules producing T have lower
- // RuleIDs than rules producing S.
- // (This strange order simplifies the GLR parser: for a given token range, if
- // we reduce in increasing RuleID order then we need never backtrack --
- // prerequisite reductions are reached before dependent ones).
- std::vector<Rule> Rules;
- // A table of terminals (aka tokens). It corresponds to the clang::Token.
- // clang::tok::TokenKind is the index of the table.
- llvm::ArrayRef<std::string> Terminals;
- // A table of nonterminals, sorted by name.
- // SymbolID is the index of the table.
- std::vector<Nonterminal> Nonterminals;
- // A table of attribute values, sorted by name.
- // ExtensionID is the index of the table.
- std::vector<std::string> AttributeValues;
-};
-
-} // namespace pseudo
-} // namespace clang
-
-#endif // CLANG_PSEUDO_GRAMMAR_H
Index: clang-tools-extra/pseudo/include/clang-pseudo/cxx/CXX.h
===================================================================
--- clang-tools-extra/pseudo/include/clang-pseudo/cxx/CXX.h
+++ clang-tools-extra/pseudo/include/clang-pseudo/cxx/CXX.h
@@ -23,7 +23,7 @@
#ifndef CLANG_PSEUDO_CXX_CXX_H
#define CLANG_PSEUDO_CXX_CXX_H
-#include "clang-pseudo/Grammar.h"
+#include "clang-pseudo/grammar/Grammar.h"
namespace clang {
namespace pseudo {
Index: clang-tools-extra/pseudo/include/clang-pseudo/GLR.h
===================================================================
--- clang-tools-extra/pseudo/include/clang-pseudo/GLR.h
+++ clang-tools-extra/pseudo/include/clang-pseudo/GLR.h
@@ -30,8 +30,8 @@
#define CLANG_PSEUDO_GLR_H
#include "clang-pseudo/Forest.h"
-#include "clang-pseudo/Grammar.h"
-#include "clang-pseudo/LRTable.h"
+#include "clang-pseudo/grammar/Grammar.h"
+#include "clang-pseudo/grammar/LRTable.h"
#include "llvm/Support/Allocator.h"
#include <vector>
Index: clang-tools-extra/pseudo/include/clang-pseudo/Forest.h
===================================================================
--- clang-tools-extra/pseudo/include/clang-pseudo/Forest.h
+++ clang-tools-extra/pseudo/include/clang-pseudo/Forest.h
@@ -20,8 +20,8 @@
#ifndef CLANG_PSEUDO_FOREST_H
#define CLANG_PSEUDO_FOREST_H
-#include "clang-pseudo/Grammar.h"
#include "clang-pseudo/Token.h"
+#include "clang-pseudo/grammar/Grammar.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/Allocator.h"
Index: clang-tools-extra/pseudo/gen/Main.cpp
===================================================================
--- clang-tools-extra/pseudo/gen/Main.cpp
+++ clang-tools-extra/pseudo/gen/Main.cpp
@@ -12,7 +12,7 @@
//
//===----------------------------------------------------------------------===//
-#include "clang-pseudo/Grammar.h"
+#include "clang-pseudo/grammar/Grammar.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileSystem.h"
Index: clang-tools-extra/pseudo/fuzzer/Fuzzer.cpp
===================================================================
--- clang-tools-extra/pseudo/fuzzer/Fuzzer.cpp
+++ clang-tools-extra/pseudo/fuzzer/Fuzzer.cpp
@@ -9,9 +9,9 @@
#include "clang-pseudo/DirectiveTree.h"
#include "clang-pseudo/Forest.h"
#include "clang-pseudo/GLR.h"
-#include "clang-pseudo/Grammar.h"
-#include "clang-pseudo/LRTable.h"
#include "clang-pseudo/Token.h"
+#include "clang-pseudo/grammar/Grammar.h"
+#include "clang-pseudo/grammar/LRTable.h"
#include "clang/Basic/LangOptions.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/MemoryBuffer.h"
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