mirror of
https://github.com/RPCS3/llvm-mirror.git
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ba9adaa9dd
Don't emit an output dash for an empty sequence. Take emitting a vector
of strings for example:
std::vector<std::string> Strings = {"foo", "bar"};
LLVM_YAML_IS_SEQUENCE_VECTOR(std::string)
yout << Strings;
This emits the following YAML document.
---
- foo
- bar
...
When the vector is empty, this generates the following result:
---
- []
...
Although this is valid YAML, it does not match what we meant to emit.
The result is a one-element sequence consisting of an empty list.
Indeed, if we were to try to read this again we get an error:
YAML:2:4: error: not a mapping
- []
The problem is the output dash before the empty list. The correct output
would be:
---
[]
...
This patch fixes that by not emitting the output dash for an empty
sequence.
Differential revision: https://reviews.llvm.org/D95280
2069 lines
69 KiB
C++
2069 lines
69 KiB
C++
//===- llvm/Support/YAMLTraits.h --------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_YAMLTRAITS_H
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#define LLVM_SUPPORT_YAMLTRAITS_H
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#include "llvm/ADT/Optional.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/ADT/StringMap.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/Support/AlignOf.h"
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#include "llvm/Support/Allocator.h"
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#include "llvm/Support/Endian.h"
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#include "llvm/Support/Regex.h"
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#include "llvm/Support/SMLoc.h"
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#include "llvm/Support/SourceMgr.h"
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#include "llvm/Support/VersionTuple.h"
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#include "llvm/Support/YAMLParser.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cassert>
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#include <cctype>
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#include <cstddef>
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#include <cstdint>
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#include <iterator>
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#include <map>
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#include <memory>
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#include <new>
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#include <string>
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#include <system_error>
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#include <type_traits>
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#include <vector>
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namespace llvm {
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namespace yaml {
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enum class NodeKind : uint8_t {
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Scalar,
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Map,
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Sequence,
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};
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struct EmptyContext {};
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/// This class should be specialized by any type that needs to be converted
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/// to/from a YAML mapping. For example:
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///
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/// struct MappingTraits<MyStruct> {
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/// static void mapping(IO &io, MyStruct &s) {
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/// io.mapRequired("name", s.name);
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/// io.mapRequired("size", s.size);
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/// io.mapOptional("age", s.age);
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/// }
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/// };
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template<class T>
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struct MappingTraits {
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// Must provide:
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// static void mapping(IO &io, T &fields);
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// Optionally may provide:
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// static std::string validate(IO &io, T &fields);
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//
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// The optional flow flag will cause generated YAML to use a flow mapping
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// (e.g. { a: 0, b: 1 }):
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// static const bool flow = true;
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};
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/// This class is similar to MappingTraits<T> but allows you to pass in
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/// additional context for each map operation. For example:
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///
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/// struct MappingContextTraits<MyStruct, MyContext> {
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/// static void mapping(IO &io, MyStruct &s, MyContext &c) {
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/// io.mapRequired("name", s.name);
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/// io.mapRequired("size", s.size);
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/// io.mapOptional("age", s.age);
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/// ++c.TimesMapped;
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/// }
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/// };
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template <class T, class Context> struct MappingContextTraits {
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// Must provide:
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// static void mapping(IO &io, T &fields, Context &Ctx);
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// Optionally may provide:
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// static std::string validate(IO &io, T &fields, Context &Ctx);
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//
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// The optional flow flag will cause generated YAML to use a flow mapping
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// (e.g. { a: 0, b: 1 }):
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// static const bool flow = true;
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};
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/// This class should be specialized by any integral type that converts
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/// to/from a YAML scalar where there is a one-to-one mapping between
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/// in-memory values and a string in YAML. For example:
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///
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/// struct ScalarEnumerationTraits<Colors> {
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/// static void enumeration(IO &io, Colors &value) {
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/// io.enumCase(value, "red", cRed);
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/// io.enumCase(value, "blue", cBlue);
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/// io.enumCase(value, "green", cGreen);
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/// }
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/// };
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template <typename T, typename Enable = void> struct ScalarEnumerationTraits {
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// Must provide:
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// static void enumeration(IO &io, T &value);
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};
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/// This class should be specialized by any integer type that is a union
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/// of bit values and the YAML representation is a flow sequence of
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/// strings. For example:
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///
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/// struct ScalarBitSetTraits<MyFlags> {
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/// static void bitset(IO &io, MyFlags &value) {
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/// io.bitSetCase(value, "big", flagBig);
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/// io.bitSetCase(value, "flat", flagFlat);
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/// io.bitSetCase(value, "round", flagRound);
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/// }
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/// };
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template <typename T, typename Enable = void> struct ScalarBitSetTraits {
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// Must provide:
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// static void bitset(IO &io, T &value);
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};
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/// Describe which type of quotes should be used when quoting is necessary.
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/// Some non-printable characters need to be double-quoted, while some others
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/// are fine with simple-quoting, and some don't need any quoting.
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enum class QuotingType { None, Single, Double };
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/// This class should be specialized by type that requires custom conversion
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/// to/from a yaml scalar. For example:
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///
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/// template<>
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/// struct ScalarTraits<MyType> {
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/// static void output(const MyType &val, void*, llvm::raw_ostream &out) {
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/// // stream out custom formatting
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/// out << llvm::format("%x", val);
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/// }
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/// static StringRef input(StringRef scalar, void*, MyType &value) {
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/// // parse scalar and set `value`
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/// // return empty string on success, or error string
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/// return StringRef();
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/// }
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/// static QuotingType mustQuote(StringRef) { return QuotingType::Single; }
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/// };
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template <typename T, typename Enable = void> struct ScalarTraits {
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// Must provide:
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//
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// Function to write the value as a string:
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// static void output(const T &value, void *ctxt, llvm::raw_ostream &out);
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//
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// Function to convert a string to a value. Returns the empty
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// StringRef on success or an error string if string is malformed:
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// static StringRef input(StringRef scalar, void *ctxt, T &value);
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//
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// Function to determine if the value should be quoted.
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// static QuotingType mustQuote(StringRef);
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};
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/// This class should be specialized by type that requires custom conversion
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/// to/from a YAML literal block scalar. For example:
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///
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/// template <>
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/// struct BlockScalarTraits<MyType> {
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/// static void output(const MyType &Value, void*, llvm::raw_ostream &Out)
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/// {
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/// // stream out custom formatting
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/// Out << Value;
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/// }
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/// static StringRef input(StringRef Scalar, void*, MyType &Value) {
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/// // parse scalar and set `value`
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/// // return empty string on success, or error string
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/// return StringRef();
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/// }
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/// };
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template <typename T>
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struct BlockScalarTraits {
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// Must provide:
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//
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// Function to write the value as a string:
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// static void output(const T &Value, void *ctx, llvm::raw_ostream &Out);
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//
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// Function to convert a string to a value. Returns the empty
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// StringRef on success or an error string if string is malformed:
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// static StringRef input(StringRef Scalar, void *ctxt, T &Value);
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//
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// Optional:
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// static StringRef inputTag(T &Val, std::string Tag)
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// static void outputTag(const T &Val, raw_ostream &Out)
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};
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/// This class should be specialized by type that requires custom conversion
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/// to/from a YAML scalar with optional tags. For example:
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///
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/// template <>
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/// struct TaggedScalarTraits<MyType> {
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/// static void output(const MyType &Value, void*, llvm::raw_ostream
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/// &ScalarOut, llvm::raw_ostream &TagOut)
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/// {
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/// // stream out custom formatting including optional Tag
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/// Out << Value;
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/// }
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/// static StringRef input(StringRef Scalar, StringRef Tag, void*, MyType
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/// &Value) {
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/// // parse scalar and set `value`
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/// // return empty string on success, or error string
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/// return StringRef();
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/// }
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/// static QuotingType mustQuote(const MyType &Value, StringRef) {
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/// return QuotingType::Single;
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/// }
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/// };
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template <typename T> struct TaggedScalarTraits {
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// Must provide:
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//
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// Function to write the value and tag as strings:
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// static void output(const T &Value, void *ctx, llvm::raw_ostream &ScalarOut,
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// llvm::raw_ostream &TagOut);
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//
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// Function to convert a string to a value. Returns the empty
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// StringRef on success or an error string if string is malformed:
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// static StringRef input(StringRef Scalar, StringRef Tag, void *ctxt, T
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// &Value);
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//
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// Function to determine if the value should be quoted.
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// static QuotingType mustQuote(const T &Value, StringRef Scalar);
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};
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/// This class should be specialized by any type that needs to be converted
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/// to/from a YAML sequence. For example:
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///
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/// template<>
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/// struct SequenceTraits<MyContainer> {
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/// static size_t size(IO &io, MyContainer &seq) {
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/// return seq.size();
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/// }
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/// static MyType& element(IO &, MyContainer &seq, size_t index) {
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/// if ( index >= seq.size() )
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/// seq.resize(index+1);
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/// return seq[index];
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/// }
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/// };
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template<typename T, typename EnableIf = void>
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struct SequenceTraits {
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// Must provide:
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// static size_t size(IO &io, T &seq);
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// static T::value_type& element(IO &io, T &seq, size_t index);
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//
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// The following is option and will cause generated YAML to use
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// a flow sequence (e.g. [a,b,c]).
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// static const bool flow = true;
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};
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/// This class should be specialized by any type for which vectors of that
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/// type need to be converted to/from a YAML sequence.
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template<typename T, typename EnableIf = void>
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struct SequenceElementTraits {
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// Must provide:
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// static const bool flow;
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};
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/// This class should be specialized by any type that needs to be converted
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/// to/from a list of YAML documents.
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template<typename T>
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struct DocumentListTraits {
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// Must provide:
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// static size_t size(IO &io, T &seq);
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// static T::value_type& element(IO &io, T &seq, size_t index);
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};
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/// This class should be specialized by any type that needs to be converted
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/// to/from a YAML mapping in the case where the names of the keys are not known
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/// in advance, e.g. a string map.
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template <typename T>
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struct CustomMappingTraits {
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// static void inputOne(IO &io, StringRef key, T &elem);
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// static void output(IO &io, T &elem);
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};
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/// This class should be specialized by any type that can be represented as
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/// a scalar, map, or sequence, decided dynamically. For example:
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///
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/// typedef std::unique_ptr<MyBase> MyPoly;
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///
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/// template<>
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/// struct PolymorphicTraits<MyPoly> {
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/// static NodeKind getKind(const MyPoly &poly) {
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/// return poly->getKind();
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/// }
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/// static MyScalar& getAsScalar(MyPoly &poly) {
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/// if (!poly || !isa<MyScalar>(poly))
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/// poly.reset(new MyScalar());
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/// return *cast<MyScalar>(poly.get());
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/// }
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/// // ...
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/// };
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template <typename T> struct PolymorphicTraits {
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// Must provide:
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// static NodeKind getKind(const T &poly);
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// static scalar_type &getAsScalar(T &poly);
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// static map_type &getAsMap(T &poly);
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// static sequence_type &getAsSequence(T &poly);
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};
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// Only used for better diagnostics of missing traits
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template <typename T>
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struct MissingTrait;
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// Test if ScalarEnumerationTraits<T> is defined on type T.
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template <class T>
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struct has_ScalarEnumerationTraits
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{
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using Signature_enumeration = void (*)(class IO&, T&);
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template <typename U>
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static char test(SameType<Signature_enumeration, &U::enumeration>*);
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template <typename U>
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static double test(...);
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static bool const value =
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(sizeof(test<ScalarEnumerationTraits<T>>(nullptr)) == 1);
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};
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// Test if ScalarBitSetTraits<T> is defined on type T.
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template <class T>
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struct has_ScalarBitSetTraits
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{
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using Signature_bitset = void (*)(class IO&, T&);
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template <typename U>
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static char test(SameType<Signature_bitset, &U::bitset>*);
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template <typename U>
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static double test(...);
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static bool const value = (sizeof(test<ScalarBitSetTraits<T>>(nullptr)) == 1);
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};
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// Test if ScalarTraits<T> is defined on type T.
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template <class T>
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struct has_ScalarTraits
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{
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using Signature_input = StringRef (*)(StringRef, void*, T&);
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using Signature_output = void (*)(const T&, void*, raw_ostream&);
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using Signature_mustQuote = QuotingType (*)(StringRef);
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template <typename U>
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static char test(SameType<Signature_input, &U::input> *,
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SameType<Signature_output, &U::output> *,
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SameType<Signature_mustQuote, &U::mustQuote> *);
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template <typename U>
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static double test(...);
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static bool const value =
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(sizeof(test<ScalarTraits<T>>(nullptr, nullptr, nullptr)) == 1);
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};
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// Test if BlockScalarTraits<T> is defined on type T.
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template <class T>
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struct has_BlockScalarTraits
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{
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using Signature_input = StringRef (*)(StringRef, void *, T &);
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using Signature_output = void (*)(const T &, void *, raw_ostream &);
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template <typename U>
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static char test(SameType<Signature_input, &U::input> *,
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SameType<Signature_output, &U::output> *);
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template <typename U>
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static double test(...);
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static bool const value =
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(sizeof(test<BlockScalarTraits<T>>(nullptr, nullptr)) == 1);
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};
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// Test if TaggedScalarTraits<T> is defined on type T.
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template <class T> struct has_TaggedScalarTraits {
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using Signature_input = StringRef (*)(StringRef, StringRef, void *, T &);
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using Signature_output = void (*)(const T &, void *, raw_ostream &,
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raw_ostream &);
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using Signature_mustQuote = QuotingType (*)(const T &, StringRef);
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template <typename U>
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static char test(SameType<Signature_input, &U::input> *,
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SameType<Signature_output, &U::output> *,
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SameType<Signature_mustQuote, &U::mustQuote> *);
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template <typename U> static double test(...);
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static bool const value =
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(sizeof(test<TaggedScalarTraits<T>>(nullptr, nullptr, nullptr)) == 1);
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};
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// Test if MappingContextTraits<T> is defined on type T.
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template <class T, class Context> struct has_MappingTraits {
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using Signature_mapping = void (*)(class IO &, T &, Context &);
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template <typename U>
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static char test(SameType<Signature_mapping, &U::mapping>*);
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template <typename U>
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static double test(...);
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static bool const value =
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(sizeof(test<MappingContextTraits<T, Context>>(nullptr)) == 1);
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};
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// Test if MappingTraits<T> is defined on type T.
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template <class T> struct has_MappingTraits<T, EmptyContext> {
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using Signature_mapping = void (*)(class IO &, T &);
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template <typename U>
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static char test(SameType<Signature_mapping, &U::mapping> *);
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template <typename U> static double test(...);
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static bool const value = (sizeof(test<MappingTraits<T>>(nullptr)) == 1);
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};
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// Test if MappingContextTraits<T>::validate() is defined on type T.
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template <class T, class Context> struct has_MappingValidateTraits {
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using Signature_validate = std::string (*)(class IO &, T &, Context &);
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template <typename U>
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static char test(SameType<Signature_validate, &U::validate>*);
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template <typename U>
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static double test(...);
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static bool const value =
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(sizeof(test<MappingContextTraits<T, Context>>(nullptr)) == 1);
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};
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// Test if MappingTraits<T>::validate() is defined on type T.
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template <class T> struct has_MappingValidateTraits<T, EmptyContext> {
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using Signature_validate = std::string (*)(class IO &, T &);
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template <typename U>
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static char test(SameType<Signature_validate, &U::validate> *);
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template <typename U> static double test(...);
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static bool const value = (sizeof(test<MappingTraits<T>>(nullptr)) == 1);
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};
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|
|
// Test if SequenceTraits<T> is defined on type T.
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template <class T>
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struct has_SequenceMethodTraits
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|
{
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|
using Signature_size = size_t (*)(class IO&, T&);
|
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|
template <typename U>
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static char test(SameType<Signature_size, &U::size>*);
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template <typename U>
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static double test(...);
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static bool const value = (sizeof(test<SequenceTraits<T>>(nullptr)) == 1);
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};
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|
|
// Test if CustomMappingTraits<T> is defined on type T.
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|
template <class T>
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struct has_CustomMappingTraits
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|
{
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using Signature_input = void (*)(IO &io, StringRef key, T &v);
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|
template <typename U>
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static char test(SameType<Signature_input, &U::inputOne>*);
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template <typename U>
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static double test(...);
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static bool const value =
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(sizeof(test<CustomMappingTraits<T>>(nullptr)) == 1);
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};
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// has_FlowTraits<int> will cause an error with some compilers because
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// it subclasses int. Using this wrapper only instantiates the
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// real has_FlowTraits only if the template type is a class.
|
|
template <typename T, bool Enabled = std::is_class<T>::value>
|
|
class has_FlowTraits
|
|
{
|
|
public:
|
|
static const bool value = false;
|
|
};
|
|
|
|
// Some older gcc compilers don't support straight forward tests
|
|
// for members, so test for ambiguity cause by the base and derived
|
|
// classes both defining the member.
|
|
template <class T>
|
|
struct has_FlowTraits<T, true>
|
|
{
|
|
struct Fallback { bool flow; };
|
|
struct Derived : T, Fallback { };
|
|
|
|
template<typename C>
|
|
static char (&f(SameType<bool Fallback::*, &C::flow>*))[1];
|
|
|
|
template<typename C>
|
|
static char (&f(...))[2];
|
|
|
|
static bool const value = sizeof(f<Derived>(nullptr)) == 2;
|
|
};
|
|
|
|
// Test if SequenceTraits<T> is defined on type T
|
|
template<typename T>
|
|
struct has_SequenceTraits : public std::integral_constant<bool,
|
|
has_SequenceMethodTraits<T>::value > { };
|
|
|
|
// Test if DocumentListTraits<T> is defined on type T
|
|
template <class T>
|
|
struct has_DocumentListTraits
|
|
{
|
|
using Signature_size = size_t (*)(class IO &, T &);
|
|
|
|
template <typename U>
|
|
static char test(SameType<Signature_size, &U::size>*);
|
|
|
|
template <typename U>
|
|
static double test(...);
|
|
|
|
static bool const value = (sizeof(test<DocumentListTraits<T>>(nullptr))==1);
|
|
};
|
|
|
|
template <class T> struct has_PolymorphicTraits {
|
|
using Signature_getKind = NodeKind (*)(const T &);
|
|
|
|
template <typename U>
|
|
static char test(SameType<Signature_getKind, &U::getKind> *);
|
|
|
|
template <typename U> static double test(...);
|
|
|
|
static bool const value = (sizeof(test<PolymorphicTraits<T>>(nullptr)) == 1);
|
|
};
|
|
|
|
inline bool isNumeric(StringRef S) {
|
|
const static auto skipDigits = [](StringRef Input) {
|
|
return Input.drop_front(
|
|
std::min(Input.find_first_not_of("0123456789"), Input.size()));
|
|
};
|
|
|
|
// Make S.front() and S.drop_front().front() (if S.front() is [+-]) calls
|
|
// safe.
|
|
if (S.empty() || S.equals("+") || S.equals("-"))
|
|
return false;
|
|
|
|
if (S.equals(".nan") || S.equals(".NaN") || S.equals(".NAN"))
|
|
return true;
|
|
|
|
// Infinity and decimal numbers can be prefixed with sign.
|
|
StringRef Tail = (S.front() == '-' || S.front() == '+') ? S.drop_front() : S;
|
|
|
|
// Check for infinity first, because checking for hex and oct numbers is more
|
|
// expensive.
|
|
if (Tail.equals(".inf") || Tail.equals(".Inf") || Tail.equals(".INF"))
|
|
return true;
|
|
|
|
// Section 10.3.2 Tag Resolution
|
|
// YAML 1.2 Specification prohibits Base 8 and Base 16 numbers prefixed with
|
|
// [-+], so S should be used instead of Tail.
|
|
if (S.startswith("0o"))
|
|
return S.size() > 2 &&
|
|
S.drop_front(2).find_first_not_of("01234567") == StringRef::npos;
|
|
|
|
if (S.startswith("0x"))
|
|
return S.size() > 2 && S.drop_front(2).find_first_not_of(
|
|
"0123456789abcdefABCDEF") == StringRef::npos;
|
|
|
|
// Parse float: [-+]? (\. [0-9]+ | [0-9]+ (\. [0-9]* )?) ([eE] [-+]? [0-9]+)?
|
|
S = Tail;
|
|
|
|
// Handle cases when the number starts with '.' and hence needs at least one
|
|
// digit after dot (as opposed by number which has digits before the dot), but
|
|
// doesn't have one.
|
|
if (S.startswith(".") &&
|
|
(S.equals(".") ||
|
|
(S.size() > 1 && std::strchr("0123456789", S[1]) == nullptr)))
|
|
return false;
|
|
|
|
if (S.startswith("E") || S.startswith("e"))
|
|
return false;
|
|
|
|
enum ParseState {
|
|
Default,
|
|
FoundDot,
|
|
FoundExponent,
|
|
};
|
|
ParseState State = Default;
|
|
|
|
S = skipDigits(S);
|
|
|
|
// Accept decimal integer.
|
|
if (S.empty())
|
|
return true;
|
|
|
|
if (S.front() == '.') {
|
|
State = FoundDot;
|
|
S = S.drop_front();
|
|
} else if (S.front() == 'e' || S.front() == 'E') {
|
|
State = FoundExponent;
|
|
S = S.drop_front();
|
|
} else {
|
|
return false;
|
|
}
|
|
|
|
if (State == FoundDot) {
|
|
S = skipDigits(S);
|
|
if (S.empty())
|
|
return true;
|
|
|
|
if (S.front() == 'e' || S.front() == 'E') {
|
|
State = FoundExponent;
|
|
S = S.drop_front();
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
assert(State == FoundExponent && "Should have found exponent at this point.");
|
|
if (S.empty())
|
|
return false;
|
|
|
|
if (S.front() == '+' || S.front() == '-') {
|
|
S = S.drop_front();
|
|
if (S.empty())
|
|
return false;
|
|
}
|
|
|
|
return skipDigits(S).empty();
|
|
}
|
|
|
|
inline bool isNull(StringRef S) {
|
|
return S.equals("null") || S.equals("Null") || S.equals("NULL") ||
|
|
S.equals("~");
|
|
}
|
|
|
|
inline bool isBool(StringRef S) {
|
|
// FIXME: using parseBool is causing multiple tests to fail.
|
|
return S.equals("true") || S.equals("True") || S.equals("TRUE") ||
|
|
S.equals("false") || S.equals("False") || S.equals("FALSE");
|
|
}
|
|
|
|
// 5.1. Character Set
|
|
// The allowed character range explicitly excludes the C0 control block #x0-#x1F
|
|
// (except for TAB #x9, LF #xA, and CR #xD which are allowed), DEL #x7F, the C1
|
|
// control block #x80-#x9F (except for NEL #x85 which is allowed), the surrogate
|
|
// block #xD800-#xDFFF, #xFFFE, and #xFFFF.
|
|
inline QuotingType needsQuotes(StringRef S) {
|
|
if (S.empty())
|
|
return QuotingType::Single;
|
|
|
|
QuotingType MaxQuotingNeeded = QuotingType::None;
|
|
if (isSpace(static_cast<unsigned char>(S.front())) ||
|
|
isSpace(static_cast<unsigned char>(S.back())))
|
|
MaxQuotingNeeded = QuotingType::Single;
|
|
if (isNull(S))
|
|
MaxQuotingNeeded = QuotingType::Single;
|
|
if (isBool(S))
|
|
MaxQuotingNeeded = QuotingType::Single;
|
|
if (isNumeric(S))
|
|
MaxQuotingNeeded = QuotingType::Single;
|
|
|
|
// 7.3.3 Plain Style
|
|
// Plain scalars must not begin with most indicators, as this would cause
|
|
// ambiguity with other YAML constructs.
|
|
static constexpr char Indicators[] = R"(-?:\,[]{}#&*!|>'"%@`)";
|
|
if (S.find_first_of(Indicators) == 0)
|
|
MaxQuotingNeeded = QuotingType::Single;
|
|
|
|
for (unsigned char C : S) {
|
|
// Alphanum is safe.
|
|
if (isAlnum(C))
|
|
continue;
|
|
|
|
switch (C) {
|
|
// Safe scalar characters.
|
|
case '_':
|
|
case '-':
|
|
case '^':
|
|
case '.':
|
|
case ',':
|
|
case ' ':
|
|
// TAB (0x9) is allowed in unquoted strings.
|
|
case 0x9:
|
|
continue;
|
|
// LF(0xA) and CR(0xD) may delimit values and so require at least single
|
|
// quotes. LLVM YAML parser cannot handle single quoted multiline so use
|
|
// double quoting to produce valid YAML.
|
|
case 0xA:
|
|
case 0xD:
|
|
return QuotingType::Double;
|
|
// DEL (0x7F) are excluded from the allowed character range.
|
|
case 0x7F:
|
|
return QuotingType::Double;
|
|
// Forward slash is allowed to be unquoted, but we quote it anyway. We have
|
|
// many tests that use FileCheck against YAML output, and this output often
|
|
// contains paths. If we quote backslashes but not forward slashes then
|
|
// paths will come out either quoted or unquoted depending on which platform
|
|
// the test is run on, making FileCheck comparisons difficult.
|
|
case '/':
|
|
default: {
|
|
// C0 control block (0x0 - 0x1F) is excluded from the allowed character
|
|
// range.
|
|
if (C <= 0x1F)
|
|
return QuotingType::Double;
|
|
|
|
// Always double quote UTF-8.
|
|
if ((C & 0x80) != 0)
|
|
return QuotingType::Double;
|
|
|
|
// The character is not safe, at least simple quoting needed.
|
|
MaxQuotingNeeded = QuotingType::Single;
|
|
}
|
|
}
|
|
}
|
|
|
|
return MaxQuotingNeeded;
|
|
}
|
|
|
|
template <typename T, typename Context>
|
|
struct missingTraits
|
|
: public std::integral_constant<bool,
|
|
!has_ScalarEnumerationTraits<T>::value &&
|
|
!has_ScalarBitSetTraits<T>::value &&
|
|
!has_ScalarTraits<T>::value &&
|
|
!has_BlockScalarTraits<T>::value &&
|
|
!has_TaggedScalarTraits<T>::value &&
|
|
!has_MappingTraits<T, Context>::value &&
|
|
!has_SequenceTraits<T>::value &&
|
|
!has_CustomMappingTraits<T>::value &&
|
|
!has_DocumentListTraits<T>::value &&
|
|
!has_PolymorphicTraits<T>::value> {};
|
|
|
|
template <typename T, typename Context>
|
|
struct validatedMappingTraits
|
|
: public std::integral_constant<
|
|
bool, has_MappingTraits<T, Context>::value &&
|
|
has_MappingValidateTraits<T, Context>::value> {};
|
|
|
|
template <typename T, typename Context>
|
|
struct unvalidatedMappingTraits
|
|
: public std::integral_constant<
|
|
bool, has_MappingTraits<T, Context>::value &&
|
|
!has_MappingValidateTraits<T, Context>::value> {};
|
|
|
|
// Base class for Input and Output.
|
|
class IO {
|
|
public:
|
|
IO(void *Ctxt = nullptr);
|
|
virtual ~IO();
|
|
|
|
virtual bool outputting() const = 0;
|
|
|
|
virtual unsigned beginSequence() = 0;
|
|
virtual bool preflightElement(unsigned, void *&) = 0;
|
|
virtual void postflightElement(void*) = 0;
|
|
virtual void endSequence() = 0;
|
|
virtual bool canElideEmptySequence() = 0;
|
|
|
|
virtual unsigned beginFlowSequence() = 0;
|
|
virtual bool preflightFlowElement(unsigned, void *&) = 0;
|
|
virtual void postflightFlowElement(void*) = 0;
|
|
virtual void endFlowSequence() = 0;
|
|
|
|
virtual bool mapTag(StringRef Tag, bool Default=false) = 0;
|
|
virtual void beginMapping() = 0;
|
|
virtual void endMapping() = 0;
|
|
virtual bool preflightKey(const char*, bool, bool, bool &, void *&) = 0;
|
|
virtual void postflightKey(void*) = 0;
|
|
virtual std::vector<StringRef> keys() = 0;
|
|
|
|
virtual void beginFlowMapping() = 0;
|
|
virtual void endFlowMapping() = 0;
|
|
|
|
virtual void beginEnumScalar() = 0;
|
|
virtual bool matchEnumScalar(const char*, bool) = 0;
|
|
virtual bool matchEnumFallback() = 0;
|
|
virtual void endEnumScalar() = 0;
|
|
|
|
virtual bool beginBitSetScalar(bool &) = 0;
|
|
virtual bool bitSetMatch(const char*, bool) = 0;
|
|
virtual void endBitSetScalar() = 0;
|
|
|
|
virtual void scalarString(StringRef &, QuotingType) = 0;
|
|
virtual void blockScalarString(StringRef &) = 0;
|
|
virtual void scalarTag(std::string &) = 0;
|
|
|
|
virtual NodeKind getNodeKind() = 0;
|
|
|
|
virtual void setError(const Twine &) = 0;
|
|
virtual void setAllowUnknownKeys(bool Allow);
|
|
|
|
template <typename T>
|
|
void enumCase(T &Val, const char* Str, const T ConstVal) {
|
|
if ( matchEnumScalar(Str, outputting() && Val == ConstVal) ) {
|
|
Val = ConstVal;
|
|
}
|
|
}
|
|
|
|
// allow anonymous enum values to be used with LLVM_YAML_STRONG_TYPEDEF
|
|
template <typename T>
|
|
void enumCase(T &Val, const char* Str, const uint32_t ConstVal) {
|
|
if ( matchEnumScalar(Str, outputting() && Val == static_cast<T>(ConstVal)) ) {
|
|
Val = ConstVal;
|
|
}
|
|
}
|
|
|
|
template <typename FBT, typename T>
|
|
void enumFallback(T &Val) {
|
|
if (matchEnumFallback()) {
|
|
EmptyContext Context;
|
|
// FIXME: Force integral conversion to allow strong typedefs to convert.
|
|
FBT Res = static_cast<typename FBT::BaseType>(Val);
|
|
yamlize(*this, Res, true, Context);
|
|
Val = static_cast<T>(static_cast<typename FBT::BaseType>(Res));
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
void bitSetCase(T &Val, const char* Str, const T ConstVal) {
|
|
if ( bitSetMatch(Str, outputting() && (Val & ConstVal) == ConstVal) ) {
|
|
Val = static_cast<T>(Val | ConstVal);
|
|
}
|
|
}
|
|
|
|
// allow anonymous enum values to be used with LLVM_YAML_STRONG_TYPEDEF
|
|
template <typename T>
|
|
void bitSetCase(T &Val, const char* Str, const uint32_t ConstVal) {
|
|
if ( bitSetMatch(Str, outputting() && (Val & ConstVal) == ConstVal) ) {
|
|
Val = static_cast<T>(Val | ConstVal);
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
void maskedBitSetCase(T &Val, const char *Str, T ConstVal, T Mask) {
|
|
if (bitSetMatch(Str, outputting() && (Val & Mask) == ConstVal))
|
|
Val = Val | ConstVal;
|
|
}
|
|
|
|
template <typename T>
|
|
void maskedBitSetCase(T &Val, const char *Str, uint32_t ConstVal,
|
|
uint32_t Mask) {
|
|
if (bitSetMatch(Str, outputting() && (Val & Mask) == ConstVal))
|
|
Val = Val | ConstVal;
|
|
}
|
|
|
|
void *getContext() const;
|
|
void setContext(void *);
|
|
|
|
template <typename T> void mapRequired(const char *Key, T &Val) {
|
|
EmptyContext Ctx;
|
|
this->processKey(Key, Val, true, Ctx);
|
|
}
|
|
|
|
template <typename T, typename Context>
|
|
void mapRequired(const char *Key, T &Val, Context &Ctx) {
|
|
this->processKey(Key, Val, true, Ctx);
|
|
}
|
|
|
|
template <typename T> void mapOptional(const char *Key, T &Val) {
|
|
EmptyContext Ctx;
|
|
mapOptionalWithContext(Key, Val, Ctx);
|
|
}
|
|
|
|
template <typename T, typename DefaultT>
|
|
void mapOptional(const char *Key, T &Val, const DefaultT &Default) {
|
|
EmptyContext Ctx;
|
|
mapOptionalWithContext(Key, Val, Default, Ctx);
|
|
}
|
|
|
|
template <typename T, typename Context>
|
|
std::enable_if_t<has_SequenceTraits<T>::value, void>
|
|
mapOptionalWithContext(const char *Key, T &Val, Context &Ctx) {
|
|
// omit key/value instead of outputting empty sequence
|
|
if (this->canElideEmptySequence() && !(Val.begin() != Val.end()))
|
|
return;
|
|
this->processKey(Key, Val, false, Ctx);
|
|
}
|
|
|
|
template <typename T, typename Context>
|
|
void mapOptionalWithContext(const char *Key, Optional<T> &Val, Context &Ctx) {
|
|
this->processKeyWithDefault(Key, Val, Optional<T>(), /*Required=*/false,
|
|
Ctx);
|
|
}
|
|
|
|
template <typename T, typename Context>
|
|
std::enable_if_t<!has_SequenceTraits<T>::value, void>
|
|
mapOptionalWithContext(const char *Key, T &Val, Context &Ctx) {
|
|
this->processKey(Key, Val, false, Ctx);
|
|
}
|
|
|
|
template <typename T, typename Context, typename DefaultT>
|
|
void mapOptionalWithContext(const char *Key, T &Val, const DefaultT &Default,
|
|
Context &Ctx) {
|
|
static_assert(std::is_convertible<DefaultT, T>::value,
|
|
"Default type must be implicitly convertible to value type!");
|
|
this->processKeyWithDefault(Key, Val, static_cast<const T &>(Default),
|
|
false, Ctx);
|
|
}
|
|
|
|
private:
|
|
template <typename T, typename Context>
|
|
void processKeyWithDefault(const char *Key, Optional<T> &Val,
|
|
const Optional<T> &DefaultValue, bool Required,
|
|
Context &Ctx);
|
|
|
|
template <typename T, typename Context>
|
|
void processKeyWithDefault(const char *Key, T &Val, const T &DefaultValue,
|
|
bool Required, Context &Ctx) {
|
|
void *SaveInfo;
|
|
bool UseDefault;
|
|
const bool sameAsDefault = outputting() && Val == DefaultValue;
|
|
if ( this->preflightKey(Key, Required, sameAsDefault, UseDefault,
|
|
SaveInfo) ) {
|
|
yamlize(*this, Val, Required, Ctx);
|
|
this->postflightKey(SaveInfo);
|
|
}
|
|
else {
|
|
if ( UseDefault )
|
|
Val = DefaultValue;
|
|
}
|
|
}
|
|
|
|
template <typename T, typename Context>
|
|
void processKey(const char *Key, T &Val, bool Required, Context &Ctx) {
|
|
void *SaveInfo;
|
|
bool UseDefault;
|
|
if ( this->preflightKey(Key, Required, false, UseDefault, SaveInfo) ) {
|
|
yamlize(*this, Val, Required, Ctx);
|
|
this->postflightKey(SaveInfo);
|
|
}
|
|
}
|
|
|
|
private:
|
|
void *Ctxt;
|
|
};
|
|
|
|
namespace detail {
|
|
|
|
template <typename T, typename Context>
|
|
void doMapping(IO &io, T &Val, Context &Ctx) {
|
|
MappingContextTraits<T, Context>::mapping(io, Val, Ctx);
|
|
}
|
|
|
|
template <typename T> void doMapping(IO &io, T &Val, EmptyContext &Ctx) {
|
|
MappingTraits<T>::mapping(io, Val);
|
|
}
|
|
|
|
} // end namespace detail
|
|
|
|
template <typename T>
|
|
std::enable_if_t<has_ScalarEnumerationTraits<T>::value, void>
|
|
yamlize(IO &io, T &Val, bool, EmptyContext &Ctx) {
|
|
io.beginEnumScalar();
|
|
ScalarEnumerationTraits<T>::enumeration(io, Val);
|
|
io.endEnumScalar();
|
|
}
|
|
|
|
template <typename T>
|
|
std::enable_if_t<has_ScalarBitSetTraits<T>::value, void>
|
|
yamlize(IO &io, T &Val, bool, EmptyContext &Ctx) {
|
|
bool DoClear;
|
|
if ( io.beginBitSetScalar(DoClear) ) {
|
|
if ( DoClear )
|
|
Val = T();
|
|
ScalarBitSetTraits<T>::bitset(io, Val);
|
|
io.endBitSetScalar();
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
std::enable_if_t<has_ScalarTraits<T>::value, void> yamlize(IO &io, T &Val, bool,
|
|
EmptyContext &Ctx) {
|
|
if ( io.outputting() ) {
|
|
std::string Storage;
|
|
raw_string_ostream Buffer(Storage);
|
|
ScalarTraits<T>::output(Val, io.getContext(), Buffer);
|
|
StringRef Str = Buffer.str();
|
|
io.scalarString(Str, ScalarTraits<T>::mustQuote(Str));
|
|
}
|
|
else {
|
|
StringRef Str;
|
|
io.scalarString(Str, ScalarTraits<T>::mustQuote(Str));
|
|
StringRef Result = ScalarTraits<T>::input(Str, io.getContext(), Val);
|
|
if ( !Result.empty() ) {
|
|
io.setError(Twine(Result));
|
|
}
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
std::enable_if_t<has_BlockScalarTraits<T>::value, void>
|
|
yamlize(IO &YamlIO, T &Val, bool, EmptyContext &Ctx) {
|
|
if (YamlIO.outputting()) {
|
|
std::string Storage;
|
|
raw_string_ostream Buffer(Storage);
|
|
BlockScalarTraits<T>::output(Val, YamlIO.getContext(), Buffer);
|
|
StringRef Str = Buffer.str();
|
|
YamlIO.blockScalarString(Str);
|
|
} else {
|
|
StringRef Str;
|
|
YamlIO.blockScalarString(Str);
|
|
StringRef Result =
|
|
BlockScalarTraits<T>::input(Str, YamlIO.getContext(), Val);
|
|
if (!Result.empty())
|
|
YamlIO.setError(Twine(Result));
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
std::enable_if_t<has_TaggedScalarTraits<T>::value, void>
|
|
yamlize(IO &io, T &Val, bool, EmptyContext &Ctx) {
|
|
if (io.outputting()) {
|
|
std::string ScalarStorage, TagStorage;
|
|
raw_string_ostream ScalarBuffer(ScalarStorage), TagBuffer(TagStorage);
|
|
TaggedScalarTraits<T>::output(Val, io.getContext(), ScalarBuffer,
|
|
TagBuffer);
|
|
io.scalarTag(TagBuffer.str());
|
|
StringRef ScalarStr = ScalarBuffer.str();
|
|
io.scalarString(ScalarStr,
|
|
TaggedScalarTraits<T>::mustQuote(Val, ScalarStr));
|
|
} else {
|
|
std::string Tag;
|
|
io.scalarTag(Tag);
|
|
StringRef Str;
|
|
io.scalarString(Str, QuotingType::None);
|
|
StringRef Result =
|
|
TaggedScalarTraits<T>::input(Str, Tag, io.getContext(), Val);
|
|
if (!Result.empty()) {
|
|
io.setError(Twine(Result));
|
|
}
|
|
}
|
|
}
|
|
|
|
template <typename T, typename Context>
|
|
std::enable_if_t<validatedMappingTraits<T, Context>::value, void>
|
|
yamlize(IO &io, T &Val, bool, Context &Ctx) {
|
|
if (has_FlowTraits<MappingTraits<T>>::value)
|
|
io.beginFlowMapping();
|
|
else
|
|
io.beginMapping();
|
|
if (io.outputting()) {
|
|
std::string Err = MappingTraits<T>::validate(io, Val);
|
|
if (!Err.empty()) {
|
|
errs() << Err << "\n";
|
|
assert(Err.empty() && "invalid struct trying to be written as yaml");
|
|
}
|
|
}
|
|
detail::doMapping(io, Val, Ctx);
|
|
if (!io.outputting()) {
|
|
std::string Err = MappingTraits<T>::validate(io, Val);
|
|
if (!Err.empty())
|
|
io.setError(Err);
|
|
}
|
|
if (has_FlowTraits<MappingTraits<T>>::value)
|
|
io.endFlowMapping();
|
|
else
|
|
io.endMapping();
|
|
}
|
|
|
|
template <typename T, typename Context>
|
|
std::enable_if_t<unvalidatedMappingTraits<T, Context>::value, void>
|
|
yamlize(IO &io, T &Val, bool, Context &Ctx) {
|
|
if (has_FlowTraits<MappingTraits<T>>::value) {
|
|
io.beginFlowMapping();
|
|
detail::doMapping(io, Val, Ctx);
|
|
io.endFlowMapping();
|
|
} else {
|
|
io.beginMapping();
|
|
detail::doMapping(io, Val, Ctx);
|
|
io.endMapping();
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
std::enable_if_t<has_CustomMappingTraits<T>::value, void>
|
|
yamlize(IO &io, T &Val, bool, EmptyContext &Ctx) {
|
|
if ( io.outputting() ) {
|
|
io.beginMapping();
|
|
CustomMappingTraits<T>::output(io, Val);
|
|
io.endMapping();
|
|
} else {
|
|
io.beginMapping();
|
|
for (StringRef key : io.keys())
|
|
CustomMappingTraits<T>::inputOne(io, key, Val);
|
|
io.endMapping();
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
std::enable_if_t<has_PolymorphicTraits<T>::value, void>
|
|
yamlize(IO &io, T &Val, bool, EmptyContext &Ctx) {
|
|
switch (io.outputting() ? PolymorphicTraits<T>::getKind(Val)
|
|
: io.getNodeKind()) {
|
|
case NodeKind::Scalar:
|
|
return yamlize(io, PolymorphicTraits<T>::getAsScalar(Val), true, Ctx);
|
|
case NodeKind::Map:
|
|
return yamlize(io, PolymorphicTraits<T>::getAsMap(Val), true, Ctx);
|
|
case NodeKind::Sequence:
|
|
return yamlize(io, PolymorphicTraits<T>::getAsSequence(Val), true, Ctx);
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
std::enable_if_t<missingTraits<T, EmptyContext>::value, void>
|
|
yamlize(IO &io, T &Val, bool, EmptyContext &Ctx) {
|
|
char missing_yaml_trait_for_type[sizeof(MissingTrait<T>)];
|
|
}
|
|
|
|
template <typename T, typename Context>
|
|
std::enable_if_t<has_SequenceTraits<T>::value, void>
|
|
yamlize(IO &io, T &Seq, bool, Context &Ctx) {
|
|
if ( has_FlowTraits< SequenceTraits<T>>::value ) {
|
|
unsigned incnt = io.beginFlowSequence();
|
|
unsigned count = io.outputting() ? SequenceTraits<T>::size(io, Seq) : incnt;
|
|
for(unsigned i=0; i < count; ++i) {
|
|
void *SaveInfo;
|
|
if ( io.preflightFlowElement(i, SaveInfo) ) {
|
|
yamlize(io, SequenceTraits<T>::element(io, Seq, i), true, Ctx);
|
|
io.postflightFlowElement(SaveInfo);
|
|
}
|
|
}
|
|
io.endFlowSequence();
|
|
}
|
|
else {
|
|
unsigned incnt = io.beginSequence();
|
|
unsigned count = io.outputting() ? SequenceTraits<T>::size(io, Seq) : incnt;
|
|
for(unsigned i=0; i < count; ++i) {
|
|
void *SaveInfo;
|
|
if ( io.preflightElement(i, SaveInfo) ) {
|
|
yamlize(io, SequenceTraits<T>::element(io, Seq, i), true, Ctx);
|
|
io.postflightElement(SaveInfo);
|
|
}
|
|
}
|
|
io.endSequence();
|
|
}
|
|
}
|
|
|
|
template<>
|
|
struct ScalarTraits<bool> {
|
|
static void output(const bool &, void* , raw_ostream &);
|
|
static StringRef input(StringRef, void *, bool &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
template<>
|
|
struct ScalarTraits<StringRef> {
|
|
static void output(const StringRef &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, StringRef &);
|
|
static QuotingType mustQuote(StringRef S) { return needsQuotes(S); }
|
|
};
|
|
|
|
template<>
|
|
struct ScalarTraits<std::string> {
|
|
static void output(const std::string &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, std::string &);
|
|
static QuotingType mustQuote(StringRef S) { return needsQuotes(S); }
|
|
};
|
|
|
|
template<>
|
|
struct ScalarTraits<uint8_t> {
|
|
static void output(const uint8_t &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, uint8_t &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
template<>
|
|
struct ScalarTraits<uint16_t> {
|
|
static void output(const uint16_t &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, uint16_t &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
template<>
|
|
struct ScalarTraits<uint32_t> {
|
|
static void output(const uint32_t &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, uint32_t &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
template<>
|
|
struct ScalarTraits<uint64_t> {
|
|
static void output(const uint64_t &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, uint64_t &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
template<>
|
|
struct ScalarTraits<int8_t> {
|
|
static void output(const int8_t &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, int8_t &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
template<>
|
|
struct ScalarTraits<int16_t> {
|
|
static void output(const int16_t &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, int16_t &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
template<>
|
|
struct ScalarTraits<int32_t> {
|
|
static void output(const int32_t &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, int32_t &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
template<>
|
|
struct ScalarTraits<int64_t> {
|
|
static void output(const int64_t &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, int64_t &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
template<>
|
|
struct ScalarTraits<float> {
|
|
static void output(const float &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, float &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
template<>
|
|
struct ScalarTraits<double> {
|
|
static void output(const double &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, double &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
// For endian types, we use existing scalar Traits class for the underlying
|
|
// type. This way endian aware types are supported whenever the traits are
|
|
// defined for the underlying type.
|
|
template <typename value_type, support::endianness endian, size_t alignment>
|
|
struct ScalarTraits<support::detail::packed_endian_specific_integral<
|
|
value_type, endian, alignment>,
|
|
std::enable_if_t<has_ScalarTraits<value_type>::value>> {
|
|
using endian_type =
|
|
support::detail::packed_endian_specific_integral<value_type, endian,
|
|
alignment>;
|
|
|
|
static void output(const endian_type &E, void *Ctx, raw_ostream &Stream) {
|
|
ScalarTraits<value_type>::output(static_cast<value_type>(E), Ctx, Stream);
|
|
}
|
|
|
|
static StringRef input(StringRef Str, void *Ctx, endian_type &E) {
|
|
value_type V;
|
|
auto R = ScalarTraits<value_type>::input(Str, Ctx, V);
|
|
E = static_cast<endian_type>(V);
|
|
return R;
|
|
}
|
|
|
|
static QuotingType mustQuote(StringRef Str) {
|
|
return ScalarTraits<value_type>::mustQuote(Str);
|
|
}
|
|
};
|
|
|
|
template <typename value_type, support::endianness endian, size_t alignment>
|
|
struct ScalarEnumerationTraits<
|
|
support::detail::packed_endian_specific_integral<value_type, endian,
|
|
alignment>,
|
|
std::enable_if_t<has_ScalarEnumerationTraits<value_type>::value>> {
|
|
using endian_type =
|
|
support::detail::packed_endian_specific_integral<value_type, endian,
|
|
alignment>;
|
|
|
|
static void enumeration(IO &io, endian_type &E) {
|
|
value_type V = E;
|
|
ScalarEnumerationTraits<value_type>::enumeration(io, V);
|
|
E = V;
|
|
}
|
|
};
|
|
|
|
template <typename value_type, support::endianness endian, size_t alignment>
|
|
struct ScalarBitSetTraits<
|
|
support::detail::packed_endian_specific_integral<value_type, endian,
|
|
alignment>,
|
|
std::enable_if_t<has_ScalarBitSetTraits<value_type>::value>> {
|
|
using endian_type =
|
|
support::detail::packed_endian_specific_integral<value_type, endian,
|
|
alignment>;
|
|
static void bitset(IO &io, endian_type &E) {
|
|
value_type V = E;
|
|
ScalarBitSetTraits<value_type>::bitset(io, V);
|
|
E = V;
|
|
}
|
|
};
|
|
|
|
// Utility for use within MappingTraits<>::mapping() method
|
|
// to [de]normalize an object for use with YAML conversion.
|
|
template <typename TNorm, typename TFinal>
|
|
struct MappingNormalization {
|
|
MappingNormalization(IO &i_o, TFinal &Obj)
|
|
: io(i_o), BufPtr(nullptr), Result(Obj) {
|
|
if ( io.outputting() ) {
|
|
BufPtr = new (&Buffer) TNorm(io, Obj);
|
|
}
|
|
else {
|
|
BufPtr = new (&Buffer) TNorm(io);
|
|
}
|
|
}
|
|
|
|
~MappingNormalization() {
|
|
if ( ! io.outputting() ) {
|
|
Result = BufPtr->denormalize(io);
|
|
}
|
|
BufPtr->~TNorm();
|
|
}
|
|
|
|
TNorm* operator->() { return BufPtr; }
|
|
|
|
private:
|
|
using Storage = AlignedCharArrayUnion<TNorm>;
|
|
|
|
Storage Buffer;
|
|
IO &io;
|
|
TNorm *BufPtr;
|
|
TFinal &Result;
|
|
};
|
|
|
|
// Utility for use within MappingTraits<>::mapping() method
|
|
// to [de]normalize an object for use with YAML conversion.
|
|
template <typename TNorm, typename TFinal>
|
|
struct MappingNormalizationHeap {
|
|
MappingNormalizationHeap(IO &i_o, TFinal &Obj, BumpPtrAllocator *allocator)
|
|
: io(i_o), Result(Obj) {
|
|
if ( io.outputting() ) {
|
|
BufPtr = new (&Buffer) TNorm(io, Obj);
|
|
}
|
|
else if (allocator) {
|
|
BufPtr = allocator->Allocate<TNorm>();
|
|
new (BufPtr) TNorm(io);
|
|
} else {
|
|
BufPtr = new TNorm(io);
|
|
}
|
|
}
|
|
|
|
~MappingNormalizationHeap() {
|
|
if ( io.outputting() ) {
|
|
BufPtr->~TNorm();
|
|
}
|
|
else {
|
|
Result = BufPtr->denormalize(io);
|
|
}
|
|
}
|
|
|
|
TNorm* operator->() { return BufPtr; }
|
|
|
|
private:
|
|
using Storage = AlignedCharArrayUnion<TNorm>;
|
|
|
|
Storage Buffer;
|
|
IO &io;
|
|
TNorm *BufPtr = nullptr;
|
|
TFinal &Result;
|
|
};
|
|
|
|
///
|
|
/// The Input class is used to parse a yaml document into in-memory structs
|
|
/// and vectors.
|
|
///
|
|
/// It works by using YAMLParser to do a syntax parse of the entire yaml
|
|
/// document, then the Input class builds a graph of HNodes which wraps
|
|
/// each yaml Node. The extra layer is buffering. The low level yaml
|
|
/// parser only lets you look at each node once. The buffering layer lets
|
|
/// you search and interate multiple times. This is necessary because
|
|
/// the mapRequired() method calls may not be in the same order
|
|
/// as the keys in the document.
|
|
///
|
|
class Input : public IO {
|
|
public:
|
|
// Construct a yaml Input object from a StringRef and optional
|
|
// user-data. The DiagHandler can be specified to provide
|
|
// alternative error reporting.
|
|
Input(StringRef InputContent,
|
|
void *Ctxt = nullptr,
|
|
SourceMgr::DiagHandlerTy DiagHandler = nullptr,
|
|
void *DiagHandlerCtxt = nullptr);
|
|
Input(MemoryBufferRef Input,
|
|
void *Ctxt = nullptr,
|
|
SourceMgr::DiagHandlerTy DiagHandler = nullptr,
|
|
void *DiagHandlerCtxt = nullptr);
|
|
~Input() override;
|
|
|
|
// Check if there was an syntax or semantic error during parsing.
|
|
std::error_code error();
|
|
|
|
private:
|
|
bool outputting() const override;
|
|
bool mapTag(StringRef, bool) override;
|
|
void beginMapping() override;
|
|
void endMapping() override;
|
|
bool preflightKey(const char *, bool, bool, bool &, void *&) override;
|
|
void postflightKey(void *) override;
|
|
std::vector<StringRef> keys() override;
|
|
void beginFlowMapping() override;
|
|
void endFlowMapping() override;
|
|
unsigned beginSequence() override;
|
|
void endSequence() override;
|
|
bool preflightElement(unsigned index, void *&) override;
|
|
void postflightElement(void *) override;
|
|
unsigned beginFlowSequence() override;
|
|
bool preflightFlowElement(unsigned , void *&) override;
|
|
void postflightFlowElement(void *) override;
|
|
void endFlowSequence() override;
|
|
void beginEnumScalar() override;
|
|
bool matchEnumScalar(const char*, bool) override;
|
|
bool matchEnumFallback() override;
|
|
void endEnumScalar() override;
|
|
bool beginBitSetScalar(bool &) override;
|
|
bool bitSetMatch(const char *, bool ) override;
|
|
void endBitSetScalar() override;
|
|
void scalarString(StringRef &, QuotingType) override;
|
|
void blockScalarString(StringRef &) override;
|
|
void scalarTag(std::string &) override;
|
|
NodeKind getNodeKind() override;
|
|
void setError(const Twine &message) override;
|
|
bool canElideEmptySequence() override;
|
|
|
|
class HNode {
|
|
virtual void anchor();
|
|
|
|
public:
|
|
HNode(Node *n) : _node(n) { }
|
|
virtual ~HNode() = default;
|
|
|
|
static bool classof(const HNode *) { return true; }
|
|
|
|
Node *_node;
|
|
};
|
|
|
|
class EmptyHNode : public HNode {
|
|
void anchor() override;
|
|
|
|
public:
|
|
EmptyHNode(Node *n) : HNode(n) { }
|
|
|
|
static bool classof(const HNode *n) { return NullNode::classof(n->_node); }
|
|
|
|
static bool classof(const EmptyHNode *) { return true; }
|
|
};
|
|
|
|
class ScalarHNode : public HNode {
|
|
void anchor() override;
|
|
|
|
public:
|
|
ScalarHNode(Node *n, StringRef s) : HNode(n), _value(s) { }
|
|
|
|
StringRef value() const { return _value; }
|
|
|
|
static bool classof(const HNode *n) {
|
|
return ScalarNode::classof(n->_node) ||
|
|
BlockScalarNode::classof(n->_node);
|
|
}
|
|
|
|
static bool classof(const ScalarHNode *) { return true; }
|
|
|
|
protected:
|
|
StringRef _value;
|
|
};
|
|
|
|
class MapHNode : public HNode {
|
|
void anchor() override;
|
|
|
|
public:
|
|
MapHNode(Node *n) : HNode(n) { }
|
|
|
|
static bool classof(const HNode *n) {
|
|
return MappingNode::classof(n->_node);
|
|
}
|
|
|
|
static bool classof(const MapHNode *) { return true; }
|
|
|
|
using NameToNodeAndLoc =
|
|
StringMap<std::pair<std::unique_ptr<HNode>, SMRange>>;
|
|
|
|
NameToNodeAndLoc Mapping;
|
|
SmallVector<std::string, 6> ValidKeys;
|
|
};
|
|
|
|
class SequenceHNode : public HNode {
|
|
void anchor() override;
|
|
|
|
public:
|
|
SequenceHNode(Node *n) : HNode(n) { }
|
|
|
|
static bool classof(const HNode *n) {
|
|
return SequenceNode::classof(n->_node);
|
|
}
|
|
|
|
static bool classof(const SequenceHNode *) { return true; }
|
|
|
|
std::vector<std::unique_ptr<HNode>> Entries;
|
|
};
|
|
|
|
std::unique_ptr<Input::HNode> createHNodes(Node *node);
|
|
void setError(HNode *hnode, const Twine &message);
|
|
void setError(Node *node, const Twine &message);
|
|
void setError(const SMRange &Range, const Twine &message);
|
|
|
|
void reportWarning(HNode *hnode, const Twine &message);
|
|
void reportWarning(Node *hnode, const Twine &message);
|
|
void reportWarning(const SMRange &Range, const Twine &message);
|
|
|
|
public:
|
|
// These are only used by operator>>. They could be private
|
|
// if those templated things could be made friends.
|
|
bool setCurrentDocument();
|
|
bool nextDocument();
|
|
|
|
/// Returns the current node that's being parsed by the YAML Parser.
|
|
const Node *getCurrentNode() const;
|
|
|
|
void setAllowUnknownKeys(bool Allow) override;
|
|
|
|
private:
|
|
SourceMgr SrcMgr; // must be before Strm
|
|
std::unique_ptr<llvm::yaml::Stream> Strm;
|
|
std::unique_ptr<HNode> TopNode;
|
|
std::error_code EC;
|
|
BumpPtrAllocator StringAllocator;
|
|
document_iterator DocIterator;
|
|
std::vector<bool> BitValuesUsed;
|
|
HNode *CurrentNode = nullptr;
|
|
bool ScalarMatchFound = false;
|
|
bool AllowUnknownKeys = false;
|
|
};
|
|
|
|
///
|
|
/// The Output class is used to generate a yaml document from in-memory structs
|
|
/// and vectors.
|
|
///
|
|
class Output : public IO {
|
|
public:
|
|
Output(raw_ostream &, void *Ctxt = nullptr, int WrapColumn = 70);
|
|
~Output() override;
|
|
|
|
/// Set whether or not to output optional values which are equal
|
|
/// to the default value. By default, when outputting if you attempt
|
|
/// to write a value that is equal to the default, the value gets ignored.
|
|
/// Sometimes, it is useful to be able to see these in the resulting YAML
|
|
/// anyway.
|
|
void setWriteDefaultValues(bool Write) { WriteDefaultValues = Write; }
|
|
|
|
bool outputting() const override;
|
|
bool mapTag(StringRef, bool) override;
|
|
void beginMapping() override;
|
|
void endMapping() override;
|
|
bool preflightKey(const char *key, bool, bool, bool &, void *&) override;
|
|
void postflightKey(void *) override;
|
|
std::vector<StringRef> keys() override;
|
|
void beginFlowMapping() override;
|
|
void endFlowMapping() override;
|
|
unsigned beginSequence() override;
|
|
void endSequence() override;
|
|
bool preflightElement(unsigned, void *&) override;
|
|
void postflightElement(void *) override;
|
|
unsigned beginFlowSequence() override;
|
|
bool preflightFlowElement(unsigned, void *&) override;
|
|
void postflightFlowElement(void *) override;
|
|
void endFlowSequence() override;
|
|
void beginEnumScalar() override;
|
|
bool matchEnumScalar(const char*, bool) override;
|
|
bool matchEnumFallback() override;
|
|
void endEnumScalar() override;
|
|
bool beginBitSetScalar(bool &) override;
|
|
bool bitSetMatch(const char *, bool ) override;
|
|
void endBitSetScalar() override;
|
|
void scalarString(StringRef &, QuotingType) override;
|
|
void blockScalarString(StringRef &) override;
|
|
void scalarTag(std::string &) override;
|
|
NodeKind getNodeKind() override;
|
|
void setError(const Twine &message) override;
|
|
bool canElideEmptySequence() override;
|
|
|
|
// These are only used by operator<<. They could be private
|
|
// if that templated operator could be made a friend.
|
|
void beginDocuments();
|
|
bool preflightDocument(unsigned);
|
|
void postflightDocument();
|
|
void endDocuments();
|
|
|
|
private:
|
|
void output(StringRef s);
|
|
void outputUpToEndOfLine(StringRef s);
|
|
void newLineCheck(bool EmptySequence = false);
|
|
void outputNewLine();
|
|
void paddedKey(StringRef key);
|
|
void flowKey(StringRef Key);
|
|
|
|
enum InState {
|
|
inSeqFirstElement,
|
|
inSeqOtherElement,
|
|
inFlowSeqFirstElement,
|
|
inFlowSeqOtherElement,
|
|
inMapFirstKey,
|
|
inMapOtherKey,
|
|
inFlowMapFirstKey,
|
|
inFlowMapOtherKey
|
|
};
|
|
|
|
static bool inSeqAnyElement(InState State);
|
|
static bool inFlowSeqAnyElement(InState State);
|
|
static bool inMapAnyKey(InState State);
|
|
static bool inFlowMapAnyKey(InState State);
|
|
|
|
raw_ostream &Out;
|
|
int WrapColumn;
|
|
SmallVector<InState, 8> StateStack;
|
|
int Column = 0;
|
|
int ColumnAtFlowStart = 0;
|
|
int ColumnAtMapFlowStart = 0;
|
|
bool NeedBitValueComma = false;
|
|
bool NeedFlowSequenceComma = false;
|
|
bool EnumerationMatchFound = false;
|
|
bool WriteDefaultValues = false;
|
|
StringRef Padding;
|
|
StringRef PaddingBeforeContainer;
|
|
};
|
|
|
|
template <typename T, typename Context>
|
|
void IO::processKeyWithDefault(const char *Key, Optional<T> &Val,
|
|
const Optional<T> &DefaultValue, bool Required,
|
|
Context &Ctx) {
|
|
assert(DefaultValue.hasValue() == false &&
|
|
"Optional<T> shouldn't have a value!");
|
|
void *SaveInfo;
|
|
bool UseDefault = true;
|
|
const bool sameAsDefault = outputting() && !Val.hasValue();
|
|
if (!outputting() && !Val.hasValue())
|
|
Val = T();
|
|
if (Val.hasValue() &&
|
|
this->preflightKey(Key, Required, sameAsDefault, UseDefault, SaveInfo)) {
|
|
|
|
// When reading an Optional<X> key from a YAML description, we allow the
|
|
// special "<none>" value, which can be used to specify that no value was
|
|
// requested, i.e. the DefaultValue will be assigned. The DefaultValue is
|
|
// usually None.
|
|
bool IsNone = false;
|
|
if (!outputting())
|
|
if (auto *Node = dyn_cast<ScalarNode>(((Input *)this)->getCurrentNode()))
|
|
// We use rtrim to ignore possible white spaces that might exist when a
|
|
// comment is present on the same line.
|
|
IsNone = Node->getRawValue().rtrim(' ') == "<none>";
|
|
|
|
if (IsNone)
|
|
Val = DefaultValue;
|
|
else
|
|
yamlize(*this, Val.getValue(), Required, Ctx);
|
|
this->postflightKey(SaveInfo);
|
|
} else {
|
|
if (UseDefault)
|
|
Val = DefaultValue;
|
|
}
|
|
}
|
|
|
|
/// YAML I/O does conversion based on types. But often native data types
|
|
/// are just a typedef of built in intergral types (e.g. int). But the C++
|
|
/// type matching system sees through the typedef and all the typedefed types
|
|
/// look like a built in type. This will cause the generic YAML I/O conversion
|
|
/// to be used. To provide better control over the YAML conversion, you can
|
|
/// use this macro instead of typedef. It will create a class with one field
|
|
/// and automatic conversion operators to and from the base type.
|
|
/// Based on BOOST_STRONG_TYPEDEF
|
|
#define LLVM_YAML_STRONG_TYPEDEF(_base, _type) \
|
|
struct _type { \
|
|
_type() = default; \
|
|
_type(const _base v) : value(v) {} \
|
|
_type(const _type &v) = default; \
|
|
_type &operator=(const _type &rhs) = default; \
|
|
_type &operator=(const _base &rhs) { value = rhs; return *this; } \
|
|
operator const _base & () const { return value; } \
|
|
bool operator==(const _type &rhs) const { return value == rhs.value; } \
|
|
bool operator==(const _base &rhs) const { return value == rhs; } \
|
|
bool operator<(const _type &rhs) const { return value < rhs.value; } \
|
|
_base value; \
|
|
using BaseType = _base; \
|
|
};
|
|
|
|
///
|
|
/// Use these types instead of uintXX_t in any mapping to have
|
|
/// its yaml output formatted as hexadecimal.
|
|
///
|
|
LLVM_YAML_STRONG_TYPEDEF(uint8_t, Hex8)
|
|
LLVM_YAML_STRONG_TYPEDEF(uint16_t, Hex16)
|
|
LLVM_YAML_STRONG_TYPEDEF(uint32_t, Hex32)
|
|
LLVM_YAML_STRONG_TYPEDEF(uint64_t, Hex64)
|
|
|
|
template<>
|
|
struct ScalarTraits<Hex8> {
|
|
static void output(const Hex8 &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, Hex8 &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
template<>
|
|
struct ScalarTraits<Hex16> {
|
|
static void output(const Hex16 &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, Hex16 &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
template<>
|
|
struct ScalarTraits<Hex32> {
|
|
static void output(const Hex32 &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, Hex32 &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
template<>
|
|
struct ScalarTraits<Hex64> {
|
|
static void output(const Hex64 &, void *, raw_ostream &);
|
|
static StringRef input(StringRef, void *, Hex64 &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
template <> struct ScalarTraits<VersionTuple> {
|
|
static void output(const VersionTuple &Value, void *, llvm::raw_ostream &Out);
|
|
static StringRef input(StringRef, void *, VersionTuple &);
|
|
static QuotingType mustQuote(StringRef) { return QuotingType::None; }
|
|
};
|
|
|
|
// Define non-member operator>> so that Input can stream in a document list.
|
|
template <typename T>
|
|
inline std::enable_if_t<has_DocumentListTraits<T>::value, Input &>
|
|
operator>>(Input &yin, T &docList) {
|
|
int i = 0;
|
|
EmptyContext Ctx;
|
|
while ( yin.setCurrentDocument() ) {
|
|
yamlize(yin, DocumentListTraits<T>::element(yin, docList, i), true, Ctx);
|
|
if ( yin.error() )
|
|
return yin;
|
|
yin.nextDocument();
|
|
++i;
|
|
}
|
|
return yin;
|
|
}
|
|
|
|
// Define non-member operator>> so that Input can stream in a map as a document.
|
|
template <typename T>
|
|
inline std::enable_if_t<has_MappingTraits<T, EmptyContext>::value, Input &>
|
|
operator>>(Input &yin, T &docMap) {
|
|
EmptyContext Ctx;
|
|
yin.setCurrentDocument();
|
|
yamlize(yin, docMap, true, Ctx);
|
|
return yin;
|
|
}
|
|
|
|
// Define non-member operator>> so that Input can stream in a sequence as
|
|
// a document.
|
|
template <typename T>
|
|
inline std::enable_if_t<has_SequenceTraits<T>::value, Input &>
|
|
operator>>(Input &yin, T &docSeq) {
|
|
EmptyContext Ctx;
|
|
if (yin.setCurrentDocument())
|
|
yamlize(yin, docSeq, true, Ctx);
|
|
return yin;
|
|
}
|
|
|
|
// Define non-member operator>> so that Input can stream in a block scalar.
|
|
template <typename T>
|
|
inline std::enable_if_t<has_BlockScalarTraits<T>::value, Input &>
|
|
operator>>(Input &In, T &Val) {
|
|
EmptyContext Ctx;
|
|
if (In.setCurrentDocument())
|
|
yamlize(In, Val, true, Ctx);
|
|
return In;
|
|
}
|
|
|
|
// Define non-member operator>> so that Input can stream in a string map.
|
|
template <typename T>
|
|
inline std::enable_if_t<has_CustomMappingTraits<T>::value, Input &>
|
|
operator>>(Input &In, T &Val) {
|
|
EmptyContext Ctx;
|
|
if (In.setCurrentDocument())
|
|
yamlize(In, Val, true, Ctx);
|
|
return In;
|
|
}
|
|
|
|
// Define non-member operator>> so that Input can stream in a polymorphic type.
|
|
template <typename T>
|
|
inline std::enable_if_t<has_PolymorphicTraits<T>::value, Input &>
|
|
operator>>(Input &In, T &Val) {
|
|
EmptyContext Ctx;
|
|
if (In.setCurrentDocument())
|
|
yamlize(In, Val, true, Ctx);
|
|
return In;
|
|
}
|
|
|
|
// Provide better error message about types missing a trait specialization
|
|
template <typename T>
|
|
inline std::enable_if_t<missingTraits<T, EmptyContext>::value, Input &>
|
|
operator>>(Input &yin, T &docSeq) {
|
|
char missing_yaml_trait_for_type[sizeof(MissingTrait<T>)];
|
|
return yin;
|
|
}
|
|
|
|
// Define non-member operator<< so that Output can stream out document list.
|
|
template <typename T>
|
|
inline std::enable_if_t<has_DocumentListTraits<T>::value, Output &>
|
|
operator<<(Output &yout, T &docList) {
|
|
EmptyContext Ctx;
|
|
yout.beginDocuments();
|
|
const size_t count = DocumentListTraits<T>::size(yout, docList);
|
|
for(size_t i=0; i < count; ++i) {
|
|
if ( yout.preflightDocument(i) ) {
|
|
yamlize(yout, DocumentListTraits<T>::element(yout, docList, i), true,
|
|
Ctx);
|
|
yout.postflightDocument();
|
|
}
|
|
}
|
|
yout.endDocuments();
|
|
return yout;
|
|
}
|
|
|
|
// Define non-member operator<< so that Output can stream out a map.
|
|
template <typename T>
|
|
inline std::enable_if_t<has_MappingTraits<T, EmptyContext>::value, Output &>
|
|
operator<<(Output &yout, T &map) {
|
|
EmptyContext Ctx;
|
|
yout.beginDocuments();
|
|
if ( yout.preflightDocument(0) ) {
|
|
yamlize(yout, map, true, Ctx);
|
|
yout.postflightDocument();
|
|
}
|
|
yout.endDocuments();
|
|
return yout;
|
|
}
|
|
|
|
// Define non-member operator<< so that Output can stream out a sequence.
|
|
template <typename T>
|
|
inline std::enable_if_t<has_SequenceTraits<T>::value, Output &>
|
|
operator<<(Output &yout, T &seq) {
|
|
EmptyContext Ctx;
|
|
yout.beginDocuments();
|
|
if ( yout.preflightDocument(0) ) {
|
|
yamlize(yout, seq, true, Ctx);
|
|
yout.postflightDocument();
|
|
}
|
|
yout.endDocuments();
|
|
return yout;
|
|
}
|
|
|
|
// Define non-member operator<< so that Output can stream out a block scalar.
|
|
template <typename T>
|
|
inline std::enable_if_t<has_BlockScalarTraits<T>::value, Output &>
|
|
operator<<(Output &Out, T &Val) {
|
|
EmptyContext Ctx;
|
|
Out.beginDocuments();
|
|
if (Out.preflightDocument(0)) {
|
|
yamlize(Out, Val, true, Ctx);
|
|
Out.postflightDocument();
|
|
}
|
|
Out.endDocuments();
|
|
return Out;
|
|
}
|
|
|
|
// Define non-member operator<< so that Output can stream out a string map.
|
|
template <typename T>
|
|
inline std::enable_if_t<has_CustomMappingTraits<T>::value, Output &>
|
|
operator<<(Output &Out, T &Val) {
|
|
EmptyContext Ctx;
|
|
Out.beginDocuments();
|
|
if (Out.preflightDocument(0)) {
|
|
yamlize(Out, Val, true, Ctx);
|
|
Out.postflightDocument();
|
|
}
|
|
Out.endDocuments();
|
|
return Out;
|
|
}
|
|
|
|
// Define non-member operator<< so that Output can stream out a polymorphic
|
|
// type.
|
|
template <typename T>
|
|
inline std::enable_if_t<has_PolymorphicTraits<T>::value, Output &>
|
|
operator<<(Output &Out, T &Val) {
|
|
EmptyContext Ctx;
|
|
Out.beginDocuments();
|
|
if (Out.preflightDocument(0)) {
|
|
// FIXME: The parser does not support explicit documents terminated with a
|
|
// plain scalar; the end-marker is included as part of the scalar token.
|
|
assert(PolymorphicTraits<T>::getKind(Val) != NodeKind::Scalar && "plain scalar documents are not supported");
|
|
yamlize(Out, Val, true, Ctx);
|
|
Out.postflightDocument();
|
|
}
|
|
Out.endDocuments();
|
|
return Out;
|
|
}
|
|
|
|
// Provide better error message about types missing a trait specialization
|
|
template <typename T>
|
|
inline std::enable_if_t<missingTraits<T, EmptyContext>::value, Output &>
|
|
operator<<(Output &yout, T &seq) {
|
|
char missing_yaml_trait_for_type[sizeof(MissingTrait<T>)];
|
|
return yout;
|
|
}
|
|
|
|
template <bool B> struct IsFlowSequenceBase {};
|
|
template <> struct IsFlowSequenceBase<true> { static const bool flow = true; };
|
|
|
|
template <typename T, bool Flow>
|
|
struct SequenceTraitsImpl : IsFlowSequenceBase<Flow> {
|
|
private:
|
|
using type = typename T::value_type;
|
|
|
|
public:
|
|
static size_t size(IO &io, T &seq) { return seq.size(); }
|
|
|
|
static type &element(IO &io, T &seq, size_t index) {
|
|
if (index >= seq.size())
|
|
seq.resize(index + 1);
|
|
return seq[index];
|
|
}
|
|
};
|
|
|
|
// Simple helper to check an expression can be used as a bool-valued template
|
|
// argument.
|
|
template <bool> struct CheckIsBool { static const bool value = true; };
|
|
|
|
// If T has SequenceElementTraits, then vector<T> and SmallVector<T, N> have
|
|
// SequenceTraits that do the obvious thing.
|
|
template <typename T>
|
|
struct SequenceTraits<
|
|
std::vector<T>,
|
|
std::enable_if_t<CheckIsBool<SequenceElementTraits<T>::flow>::value>>
|
|
: SequenceTraitsImpl<std::vector<T>, SequenceElementTraits<T>::flow> {};
|
|
template <typename T, unsigned N>
|
|
struct SequenceTraits<
|
|
SmallVector<T, N>,
|
|
std::enable_if_t<CheckIsBool<SequenceElementTraits<T>::flow>::value>>
|
|
: SequenceTraitsImpl<SmallVector<T, N>, SequenceElementTraits<T>::flow> {};
|
|
template <typename T>
|
|
struct SequenceTraits<
|
|
SmallVectorImpl<T>,
|
|
std::enable_if_t<CheckIsBool<SequenceElementTraits<T>::flow>::value>>
|
|
: SequenceTraitsImpl<SmallVectorImpl<T>, SequenceElementTraits<T>::flow> {};
|
|
|
|
// Sequences of fundamental types use flow formatting.
|
|
template <typename T>
|
|
struct SequenceElementTraits<T,
|
|
std::enable_if_t<std::is_fundamental<T>::value>> {
|
|
static const bool flow = true;
|
|
};
|
|
|
|
// Sequences of strings use block formatting.
|
|
template<> struct SequenceElementTraits<std::string> {
|
|
static const bool flow = false;
|
|
};
|
|
template<> struct SequenceElementTraits<StringRef> {
|
|
static const bool flow = false;
|
|
};
|
|
template<> struct SequenceElementTraits<std::pair<std::string, std::string>> {
|
|
static const bool flow = false;
|
|
};
|
|
|
|
/// Implementation of CustomMappingTraits for std::map<std::string, T>.
|
|
template <typename T> struct StdMapStringCustomMappingTraitsImpl {
|
|
using map_type = std::map<std::string, T>;
|
|
|
|
static void inputOne(IO &io, StringRef key, map_type &v) {
|
|
io.mapRequired(key.str().c_str(), v[std::string(key)]);
|
|
}
|
|
|
|
static void output(IO &io, map_type &v) {
|
|
for (auto &p : v)
|
|
io.mapRequired(p.first.c_str(), p.second);
|
|
}
|
|
};
|
|
|
|
} // end namespace yaml
|
|
} // end namespace llvm
|
|
|
|
#define LLVM_YAML_IS_SEQUENCE_VECTOR_IMPL(TYPE, FLOW) \
|
|
namespace llvm { \
|
|
namespace yaml { \
|
|
static_assert( \
|
|
!std::is_fundamental<TYPE>::value && \
|
|
!std::is_same<TYPE, std::string>::value && \
|
|
!std::is_same<TYPE, llvm::StringRef>::value, \
|
|
"only use LLVM_YAML_IS_SEQUENCE_VECTOR for types you control"); \
|
|
template <> struct SequenceElementTraits<TYPE> { \
|
|
static const bool flow = FLOW; \
|
|
}; \
|
|
} \
|
|
}
|
|
|
|
/// Utility for declaring that a std::vector of a particular type
|
|
/// should be considered a YAML sequence.
|
|
#define LLVM_YAML_IS_SEQUENCE_VECTOR(type) \
|
|
LLVM_YAML_IS_SEQUENCE_VECTOR_IMPL(type, false)
|
|
|
|
/// Utility for declaring that a std::vector of a particular type
|
|
/// should be considered a YAML flow sequence.
|
|
#define LLVM_YAML_IS_FLOW_SEQUENCE_VECTOR(type) \
|
|
LLVM_YAML_IS_SEQUENCE_VECTOR_IMPL(type, true)
|
|
|
|
#define LLVM_YAML_DECLARE_MAPPING_TRAITS(Type) \
|
|
namespace llvm { \
|
|
namespace yaml { \
|
|
template <> struct MappingTraits<Type> { \
|
|
static void mapping(IO &IO, Type &Obj); \
|
|
}; \
|
|
} \
|
|
}
|
|
|
|
#define LLVM_YAML_DECLARE_ENUM_TRAITS(Type) \
|
|
namespace llvm { \
|
|
namespace yaml { \
|
|
template <> struct ScalarEnumerationTraits<Type> { \
|
|
static void enumeration(IO &io, Type &Value); \
|
|
}; \
|
|
} \
|
|
}
|
|
|
|
#define LLVM_YAML_DECLARE_BITSET_TRAITS(Type) \
|
|
namespace llvm { \
|
|
namespace yaml { \
|
|
template <> struct ScalarBitSetTraits<Type> { \
|
|
static void bitset(IO &IO, Type &Options); \
|
|
}; \
|
|
} \
|
|
}
|
|
|
|
#define LLVM_YAML_DECLARE_SCALAR_TRAITS(Type, MustQuote) \
|
|
namespace llvm { \
|
|
namespace yaml { \
|
|
template <> struct ScalarTraits<Type> { \
|
|
static void output(const Type &Value, void *ctx, raw_ostream &Out); \
|
|
static StringRef input(StringRef Scalar, void *ctxt, Type &Value); \
|
|
static QuotingType mustQuote(StringRef) { return MustQuote; } \
|
|
}; \
|
|
} \
|
|
}
|
|
|
|
/// Utility for declaring that a std::vector of a particular type
|
|
/// should be considered a YAML document list.
|
|
#define LLVM_YAML_IS_DOCUMENT_LIST_VECTOR(_type) \
|
|
namespace llvm { \
|
|
namespace yaml { \
|
|
template <unsigned N> \
|
|
struct DocumentListTraits<SmallVector<_type, N>> \
|
|
: public SequenceTraitsImpl<SmallVector<_type, N>, false> {}; \
|
|
template <> \
|
|
struct DocumentListTraits<std::vector<_type>> \
|
|
: public SequenceTraitsImpl<std::vector<_type>, false> {}; \
|
|
} \
|
|
}
|
|
|
|
/// Utility for declaring that std::map<std::string, _type> should be considered
|
|
/// a YAML map.
|
|
#define LLVM_YAML_IS_STRING_MAP(_type) \
|
|
namespace llvm { \
|
|
namespace yaml { \
|
|
template <> \
|
|
struct CustomMappingTraits<std::map<std::string, _type>> \
|
|
: public StdMapStringCustomMappingTraitsImpl<_type> {}; \
|
|
} \
|
|
}
|
|
|
|
LLVM_YAML_IS_FLOW_SEQUENCE_VECTOR(llvm::yaml::Hex64)
|
|
LLVM_YAML_IS_FLOW_SEQUENCE_VECTOR(llvm::yaml::Hex32)
|
|
LLVM_YAML_IS_FLOW_SEQUENCE_VECTOR(llvm::yaml::Hex16)
|
|
LLVM_YAML_IS_FLOW_SEQUENCE_VECTOR(llvm::yaml::Hex8)
|
|
|
|
#endif // LLVM_SUPPORT_YAMLTRAITS_H
|