Refactor: Rename cmCMakePresetsFile to cmCMakePresetsGraph

And change all references to "file" to say "graph" instead.

1 files changed, 1034 insertions, 0 deletions

diff --git a/Source/cmCMakePresetsGraphReadJSON.cxx b/Source/cmCMakePresetsGraphReadJSON.cxx
new file mode 100644
index 0000000..8a9e6a0
--- /dev/null
+++ b/Source/cmCMakePresetsGraphReadJSON.cxx
@@ -0,0 +1,1034 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#include <functional>
+#include <map>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include <cm/memory>
+#include <cm/optional>
+#include <cmext/string_view>
+
+#include <cm3p/json/reader.h>
+#include <cm3p/json/value.h>
+
+#include "cmsys/FStream.hxx"
+
+#include "cmCMakePresetsGraph.h"
+#include "cmCMakePresetsGraphInternal.h"
+#include "cmJSONHelpers.h"
+#include "cmVersion.h"
+
+namespace {
+using ReadFileResult = cmCMakePresetsGraph::ReadFileResult;
+using CacheVariable = cmCMakePresetsGraph::CacheVariable;
+using ConfigurePreset = cmCMakePresetsGraph::ConfigurePreset;
+using BuildPreset = cmCMakePresetsGraph::BuildPreset;
+using TestPreset = cmCMakePresetsGraph::TestPreset;
+using ArchToolsetStrategy = cmCMakePresetsGraph::ArchToolsetStrategy;
+
+constexpr int MIN_VERSION = 1;
+constexpr int MAX_VERSION = 3;
+
+struct CMakeVersion
+{
+  unsigned int Major = 0;
+  unsigned int Minor = 0;
+  unsigned int Patch = 0;
+};
+
+struct RootPresets
+{
+  CMakeVersion CMakeMinimumRequired;
+  std::vector<cmCMakePresetsGraph::ConfigurePreset> ConfigurePresets;
+  std::vector<cmCMakePresetsGraph::BuildPreset> BuildPresets;
+  std::vector<cmCMakePresetsGraph::TestPreset> TestPresets;
+};
+
+std::unique_ptr<cmCMakePresetsGraphInternal::NotCondition> InvertCondition(
+  std::unique_ptr<cmCMakePresetsGraph::Condition> condition)
+{
+  auto retval = cm::make_unique<cmCMakePresetsGraphInternal::NotCondition>();
+  retval->SubCondition = std::move(condition);
+  return retval;
+}
+
+auto const ConditionStringHelper = cmJSONStringHelper<ReadFileResult>(
+  ReadFileResult::READ_OK, ReadFileResult::INVALID_CONDITION);
+
+auto const ConditionBoolHelper = cmJSONBoolHelper<ReadFileResult>(
+  ReadFileResult::READ_OK, ReadFileResult::INVALID_CONDITION);
+
+auto const ConditionStringListHelper =
+  cmJSONVectorHelper<std::string, ReadFileResult>(
+    ReadFileResult::READ_OK, ReadFileResult::INVALID_CONDITION,
+    ConditionStringHelper);
+
+auto const ConstConditionHelper =
+  cmJSONObjectHelper<cmCMakePresetsGraphInternal::ConstCondition,
+                     ReadFileResult>(ReadFileResult::READ_OK,
+                                     ReadFileResult::INVALID_CONDITION, false)
+    .Bind<std::string>("type"_s, nullptr, ConditionStringHelper, true)
+    .Bind("value"_s, &cmCMakePresetsGraphInternal::ConstCondition::Value,
+          ConditionBoolHelper, true);
+
+auto const EqualsConditionHelper =
+  cmJSONObjectHelper<cmCMakePresetsGraphInternal::EqualsCondition,
+                     ReadFileResult>(ReadFileResult::READ_OK,
+                                     ReadFileResult::INVALID_CONDITION, false)
+    .Bind<std::string>("type"_s, nullptr, ConditionStringHelper, true)
+    .Bind("lhs"_s, &cmCMakePresetsGraphInternal::EqualsCondition::Lhs,
+          ConditionStringHelper, true)
+    .Bind("rhs"_s, &cmCMakePresetsGraphInternal::EqualsCondition::Rhs,
+          ConditionStringHelper, true);
+
+auto const InListConditionHelper =
+  cmJSONObjectHelper<cmCMakePresetsGraphInternal::InListCondition,
+                     ReadFileResult>(ReadFileResult::READ_OK,
+                                     ReadFileResult::INVALID_CONDITION, false)
+    .Bind<std::string>("type"_s, nullptr, ConditionStringHelper, true)
+    .Bind("string"_s, &cmCMakePresetsGraphInternal::InListCondition::String,
+          ConditionStringHelper, true)
+    .Bind("list"_s, &cmCMakePresetsGraphInternal::InListCondition::List,
+          ConditionStringListHelper, true);
+
+auto const MatchesConditionHelper =
+  cmJSONObjectHelper<cmCMakePresetsGraphInternal::MatchesCondition,
+                     ReadFileResult>(ReadFileResult::READ_OK,
+                                     ReadFileResult::INVALID_CONDITION, false)
+    .Bind<std::string>("type"_s, nullptr, ConditionStringHelper, true)
+    .Bind("string"_s, &cmCMakePresetsGraphInternal::MatchesCondition::String,
+          ConditionStringHelper, true)
+    .Bind("regex"_s, &cmCMakePresetsGraphInternal::MatchesCondition::Regex,
+          ConditionStringHelper, true);
+
+ReadFileResult SubConditionHelper(
+  std::unique_ptr<cmCMakePresetsGraph::Condition>& out,
+  const Json::Value* value);
+
+auto const ListConditionVectorHelper =
+  cmJSONVectorHelper<std::unique_ptr<cmCMakePresetsGraph::Condition>,
+                     ReadFileResult>(ReadFileResult::READ_OK,
+                                     ReadFileResult::INVALID_CONDITION,
+                                     SubConditionHelper);
+auto const AnyAllOfConditionHelper =
+  cmJSONObjectHelper<cmCMakePresetsGraphInternal::AnyAllOfCondition,
+                     ReadFileResult>(ReadFileResult::READ_OK,
+                                     ReadFileResult::INVALID_CONDITION, false)
+    .Bind<std::string>("type"_s, nullptr, ConditionStringHelper, true)
+    .Bind("conditions"_s,
+          &cmCMakePresetsGraphInternal::AnyAllOfCondition::Conditions,
+          ListConditionVectorHelper);
+
+auto const NotConditionHelper =
+  cmJSONObjectHelper<cmCMakePresetsGraphInternal::NotCondition,
+                     ReadFileResult>(ReadFileResult::READ_OK,
+                                     ReadFileResult::INVALID_CONDITION, false)
+    .Bind<std::string>("type"_s, nullptr, ConditionStringHelper, true)
+    .Bind("condition"_s,
+          &cmCMakePresetsGraphInternal::NotCondition::SubCondition,
+          SubConditionHelper);
+
+ReadFileResult ConditionHelper(
+  std::unique_ptr<cmCMakePresetsGraph::Condition>& out,
+  const Json::Value* value)
+{
+  if (!value) {
+    out.reset();
+    return ReadFileResult::READ_OK;
+  }
+
+  if (value->isBool()) {
+    auto c = cm::make_unique<cmCMakePresetsGraphInternal::ConstCondition>();
+    c->Value = value->asBool();
+    out = std::move(c);
+    return ReadFileResult::READ_OK;
+  }
+
+  if (value->isNull()) {
+    out = cm::make_unique<cmCMakePresetsGraphInternal::NullCondition>();
+    return ReadFileResult::READ_OK;
+  }
+
+  if (value->isObject()) {
+    if (!value->isMember("type")) {
+      return ReadFileResult::INVALID_CONDITION;
+    }
+
+    if (!(*value)["type"].isString()) {
+      return ReadFileResult::INVALID_CONDITION;
+    }
+    auto type = (*value)["type"].asString();
+
+    if (type == "const") {
+      auto c = cm::make_unique<cmCMakePresetsGraphInternal::ConstCondition>();
+      CHECK_OK(ConstConditionHelper(*c, value));
+      out = std::move(c);
+      return ReadFileResult::READ_OK;
+    }
+
+    if (type == "equals" || type == "notEquals") {
+      auto c = cm::make_unique<cmCMakePresetsGraphInternal::EqualsCondition>();
+      CHECK_OK(EqualsConditionHelper(*c, value));
+      out = std::move(c);
+      if (type == "notEquals") {
+        out = InvertCondition(std::move(out));
+      }
+      return ReadFileResult::READ_OK;
+    }
+
+    if (type == "inList" || type == "notInList") {
+      auto c = cm::make_unique<cmCMakePresetsGraphInternal::InListCondition>();
+      CHECK_OK(InListConditionHelper(*c, value));
+      out = std::move(c);
+      if (type == "notInList") {
+        out = InvertCondition(std::move(out));
+      }
+      return ReadFileResult::READ_OK;
+    }
+
+    if (type == "matches" || type == "notMatches") {
+      auto c =
+        cm::make_unique<cmCMakePresetsGraphInternal::MatchesCondition>();
+      CHECK_OK(MatchesConditionHelper(*c, value));
+      out = std::move(c);
+      if (type == "notMatches") {
+        out = InvertCondition(std::move(out));
+      }
+      return ReadFileResult::READ_OK;
+    }
+
+    if (type == "anyOf" || type == "allOf") {
+      auto c =
+        cm::make_unique<cmCMakePresetsGraphInternal::AnyAllOfCondition>();
+      c->StopValue = (type == "anyOf");
+      CHECK_OK(AnyAllOfConditionHelper(*c, value));
+      out = std::move(c);
+      return ReadFileResult::READ_OK;
+    }
+
+    if (type == "not") {
+      auto c = cm::make_unique<cmCMakePresetsGraphInternal::NotCondition>();
+      CHECK_OK(NotConditionHelper(*c, value));
+      out = std::move(c);
+      return ReadFileResult::READ_OK;
+    }
+  }
+
+  return ReadFileResult::INVALID_CONDITION;
+}
+
+ReadFileResult PresetConditionHelper(
+  std::shared_ptr<cmCMakePresetsGraph::Condition>& out,
+  const Json::Value* value)
+{
+  std::unique_ptr<cmCMakePresetsGraph::Condition> ptr;
+  auto result = ConditionHelper(ptr, value);
+  out = std::move(ptr);
+  return result;
+}
+
+ReadFileResult SubConditionHelper(
+  std::unique_ptr<cmCMakePresetsGraph::Condition>& out,
+  const Json::Value* value)
+{
+  std::unique_ptr<cmCMakePresetsGraph::Condition> ptr;
+  auto result = ConditionHelper(ptr, value);
+  if (ptr && ptr->IsNull()) {
+    return ReadFileResult::INVALID_CONDITION;
+  }
+  out = std::move(ptr);
+  return result;
+}
+
+cmJSONHelper<std::nullptr_t, ReadFileResult> VendorHelper(ReadFileResult error)
+{
+  return [error](std::nullptr_t& /*out*/,
+                 const Json::Value* value) -> ReadFileResult {
+    if (!value) {
+      return ReadFileResult::READ_OK;
+    }
+
+    if (!value->isObject()) {
+      return error;
+    }
+
+    return ReadFileResult::READ_OK;
+  };
+}
+
+auto const VersionIntHelper = cmJSONIntHelper<ReadFileResult>(
+  ReadFileResult::READ_OK, ReadFileResult::INVALID_VERSION);
+
+auto const VersionHelper = cmJSONRequiredHelper<int, ReadFileResult>(
+  ReadFileResult::NO_VERSION, VersionIntHelper);
+
+auto const RootVersionHelper =
+  cmJSONObjectHelper<int, ReadFileResult>(ReadFileResult::READ_OK,
+                                          ReadFileResult::INVALID_ROOT)
+    .Bind("version"_s, VersionHelper, false);
+
+auto const VariableStringHelper = cmJSONStringHelper<ReadFileResult>(
+  ReadFileResult::READ_OK, ReadFileResult::INVALID_VARIABLE);
+
+ReadFileResult VariableValueHelper(std::string& out, const Json::Value* value)
+{
+  if (!value) {
+    out.clear();
+    return ReadFileResult::READ_OK;
+  }
+
+  if (value->isBool()) {
+    out = value->asBool() ? "TRUE" : "FALSE";
+    return ReadFileResult::READ_OK;
+  }
+
+  return VariableStringHelper(out, value);
+}
+
+auto const VariableObjectHelper =
+  cmJSONObjectHelper<CacheVariable, ReadFileResult>(
+    ReadFileResult::READ_OK, ReadFileResult::INVALID_VARIABLE, false)
+    .Bind("type"_s, &CacheVariable::Type, VariableStringHelper, false)
+    .Bind("value"_s, &CacheVariable::Value, VariableValueHelper);
+
+ReadFileResult VariableHelper(cm::optional<CacheVariable>& out,
+                              const Json::Value* value)
+{
+  if (value->isBool()) {
+    out = CacheVariable{
+      /*Type=*/"BOOL",
+      /*Value=*/value->asBool() ? "TRUE" : "FALSE",
+    };
+    return ReadFileResult::READ_OK;
+  }
+  if (value->isString()) {
+    out = CacheVariable{
+      /*Type=*/"",
+      /*Value=*/value->asString(),
+    };
+    return ReadFileResult::READ_OK;
+  }
+  if (value->isObject()) {
+    out.emplace();
+    return VariableObjectHelper(*out, value);
+  }
+  if (value->isNull()) {
+    out = cm::nullopt;
+    return ReadFileResult::READ_OK;
+  }
+  return ReadFileResult::INVALID_VARIABLE;
+}
+
+auto const VariablesHelper =
+  cmJSONMapHelper<cm::optional<CacheVariable>, ReadFileResult>(
+    ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET, VariableHelper);
+
+auto const PresetStringHelper = cmJSONStringHelper<ReadFileResult>(
+  ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET);
+
+ReadFileResult EnvironmentHelper(cm::optional<std::string>& out,
+                                 const Json::Value* value)
+{
+  if (!value || value->isNull()) {
+    out = cm::nullopt;
+    return ReadFileResult::READ_OK;
+  }
+  if (value->isString()) {
+    out = value->asString();
+    return ReadFileResult::READ_OK;
+  }
+  return ReadFileResult::INVALID_PRESET;
+}
+
+auto const EnvironmentMapHelper =
+  cmJSONMapHelper<cm::optional<std::string>, ReadFileResult>(
+    ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET,
+    EnvironmentHelper);
+
+auto const PresetVectorStringHelper =
+  cmJSONVectorHelper<std::string, ReadFileResult>(
+    ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET,
+    PresetStringHelper);
+
+ReadFileResult PresetVectorOneOrMoreStringHelper(std::vector<std::string>& out,
+                                                 const Json::Value* value)
+{
+  out.clear();
+  if (!value) {
+    return ReadFileResult::READ_OK;
+  }
+
+  if (value->isString()) {
+    out.push_back(value->asString());
+    return ReadFileResult::READ_OK;
+  }
+
+  return PresetVectorStringHelper(out, value);
+}
+
+auto const PresetBoolHelper = cmJSONBoolHelper<ReadFileResult>(
+  ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET);
+
+auto const PresetOptionalBoolHelper =
+  cmJSONOptionalHelper<bool, ReadFileResult>(ReadFileResult::READ_OK,
+                                             PresetBoolHelper);
+
+auto const PresetIntHelper = cmJSONIntHelper<ReadFileResult>(
+  ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET);
+
+auto const PresetOptionalIntHelper = cmJSONOptionalHelper<int, ReadFileResult>(
+  ReadFileResult::READ_OK, PresetIntHelper);
+
+auto const PresetVectorIntHelper = cmJSONVectorHelper<int, ReadFileResult>(
+  ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET, PresetIntHelper);
+
+auto const PresetWarningsHelper =
+  cmJSONObjectHelper<ConfigurePreset, ReadFileResult>(
+    ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET, false)
+    .Bind("dev"_s, &ConfigurePreset::WarnDev, PresetOptionalBoolHelper, false)
+    .Bind("deprecated"_s, &ConfigurePreset::WarnDeprecated,
+          PresetOptionalBoolHelper, false)
+    .Bind("uninitialized"_s, &ConfigurePreset::WarnUninitialized,
+          PresetOptionalBoolHelper, false)
+    .Bind("unusedCli"_s, &ConfigurePreset::WarnUnusedCli,
+          PresetOptionalBoolHelper, false)
+    .Bind("systemVars"_s, &ConfigurePreset::WarnSystemVars,
+          PresetOptionalBoolHelper, false);
+
+auto const PresetErrorsHelper =
+  cmJSONObjectHelper<ConfigurePreset, ReadFileResult>(
+    ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET, false)
+    .Bind("dev"_s, &ConfigurePreset::ErrorDev, PresetOptionalBoolHelper, false)
+    .Bind("deprecated"_s, &ConfigurePreset::ErrorDeprecated,
+          PresetOptionalBoolHelper, false);
+
+auto const PresetDebugHelper =
+  cmJSONObjectHelper<ConfigurePreset, ReadFileResult>(
+    ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET, false)
+    .Bind("output"_s, &ConfigurePreset::DebugOutput, PresetOptionalBoolHelper,
+          false)
+    .Bind("tryCompile"_s, &ConfigurePreset::DebugTryCompile,
+          PresetOptionalBoolHelper, false)
+    .Bind("find"_s, &ConfigurePreset::DebugFind, PresetOptionalBoolHelper,
+          false);
+
+ReadFileResult ArchToolsetStrategyHelper(
+  cm::optional<ArchToolsetStrategy>& out, const Json::Value* value)
+{
+  if (!value) {
+    out = cm::nullopt;
+    return ReadFileResult::READ_OK;
+  }
+
+  if (!value->isString()) {
+    return ReadFileResult::INVALID_PRESET;
+  }
+
+  if (value->asString() == "set") {
+    out = ArchToolsetStrategy::Set;
+    return ReadFileResult::READ_OK;
+  }
+
+  if (value->asString() == "external") {
+    out = ArchToolsetStrategy::External;
+    return ReadFileResult::READ_OK;
+  }
+
+  return ReadFileResult::INVALID_PRESET;
+}
+
+std::function<ReadFileResult(ConfigurePreset&, const Json::Value*)>
+ArchToolsetHelper(
+  std::string ConfigurePreset::*valueField,
+  cm::optional<ArchToolsetStrategy> ConfigurePreset::*strategyField)
+{
+  auto const objectHelper =
+    cmJSONObjectHelper<ConfigurePreset, ReadFileResult>(
+      ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET, false)
+      .Bind("value", valueField, PresetStringHelper, false)
+      .Bind("strategy", strategyField, ArchToolsetStrategyHelper, false);
+  return [valueField, strategyField, objectHelper](
+           ConfigurePreset& out, const Json::Value* value) -> ReadFileResult {
+    if (!value) {
+      (out.*valueField).clear();
+      out.*strategyField = cm::nullopt;
+      return ReadFileResult::READ_OK;
+    }
+
+    if (value->isString()) {
+      out.*valueField = value->asString();
+      out.*strategyField = cm::nullopt;
+      return ReadFileResult::READ_OK;
+    }
+
+    if (value->isObject()) {
+      return objectHelper(out, value);
+    }
+
+    return ReadFileResult::INVALID_PRESET;
+  };
+}
+
+auto const ArchitectureHelper = ArchToolsetHelper(
+  &ConfigurePreset::Architecture, &ConfigurePreset::ArchitectureStrategy);
+auto const ToolsetHelper = ArchToolsetHelper(
+  &ConfigurePreset::Toolset, &ConfigurePreset::ToolsetStrategy);
+
+auto const ConfigurePresetHelper =
+  cmJSONObjectHelper<ConfigurePreset, ReadFileResult>(
+    ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET, false)
+    .Bind("name"_s, &ConfigurePreset::Name, PresetStringHelper)
+    .Bind("inherits"_s, &ConfigurePreset::Inherits,
+          PresetVectorOneOrMoreStringHelper, false)
+    .Bind("hidden"_s, &ConfigurePreset::Hidden, PresetBoolHelper, false)
+    .Bind<std::nullptr_t>("vendor"_s, nullptr,
+                          VendorHelper(ReadFileResult::INVALID_PRESET), false)
+    .Bind("displayName"_s, &ConfigurePreset::DisplayName, PresetStringHelper,
+          false)
+    .Bind("description"_s, &ConfigurePreset::Description, PresetStringHelper,
+          false)
+    .Bind("generator"_s, &ConfigurePreset::Generator, PresetStringHelper,
+          false)
+    .Bind("architecture"_s, ArchitectureHelper, false)
+    .Bind("toolset"_s, ToolsetHelper, false)
+    .Bind("toolchainFile"_s, &ConfigurePreset::ToolchainFile,
+          PresetStringHelper, false)
+    .Bind("binaryDir"_s, &ConfigurePreset::BinaryDir, PresetStringHelper,
+          false)
+    .Bind("installDir"_s, &ConfigurePreset::InstallDir, PresetStringHelper,
+          false)
+    .Bind<std::string>("cmakeExecutable"_s, nullptr, PresetStringHelper, false)
+    .Bind("cacheVariables"_s, &ConfigurePreset::CacheVariables,
+          VariablesHelper, false)
+    .Bind("environment"_s, &ConfigurePreset::Environment, EnvironmentMapHelper,
+          false)
+    .Bind("warnings"_s, PresetWarningsHelper, false)
+    .Bind("errors"_s, PresetErrorsHelper, false)
+    .Bind("debug"_s, PresetDebugHelper, false)
+    .Bind("condition"_s, &ConfigurePreset::ConditionEvaluator,
+          PresetConditionHelper, false);
+
+auto const BuildPresetHelper =
+  cmJSONObjectHelper<BuildPreset, ReadFileResult>(
+    ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET, false)
+    .Bind("name"_s, &BuildPreset::Name, PresetStringHelper)
+    .Bind("inherits"_s, &BuildPreset::Inherits,
+          PresetVectorOneOrMoreStringHelper, false)
+    .Bind("hidden"_s, &BuildPreset::Hidden, PresetBoolHelper, false)
+    .Bind<std::nullptr_t>("vendor"_s, nullptr,
+                          VendorHelper(ReadFileResult::INVALID_PRESET), false)
+    .Bind("displayName"_s, &BuildPreset::DisplayName, PresetStringHelper,
+          false)
+    .Bind("description"_s, &BuildPreset::Description, PresetStringHelper,
+          false)
+    .Bind("environment"_s, &BuildPreset::Environment, EnvironmentMapHelper,
+          false)
+    .Bind("configurePreset"_s, &BuildPreset::ConfigurePreset,
+          PresetStringHelper, false)
+    .Bind("inheritConfigureEnvironment"_s,
+          &BuildPreset::InheritConfigureEnvironment, PresetOptionalBoolHelper,
+          false)
+    .Bind("jobs"_s, &BuildPreset::Jobs, PresetOptionalIntHelper, false)
+    .Bind("targets"_s, &BuildPreset::Targets,
+          PresetVectorOneOrMoreStringHelper, false)
+    .Bind("configuration"_s, &BuildPreset::Configuration, PresetStringHelper,
+          false)
+    .Bind("cleanFirst"_s, &BuildPreset::CleanFirst, PresetOptionalBoolHelper,
+          false)
+    .Bind("verbose"_s, &BuildPreset::Verbose, PresetOptionalBoolHelper, false)
+    .Bind("nativeToolOptions"_s, &BuildPreset::NativeToolOptions,
+          PresetVectorStringHelper, false)
+    .Bind("condition"_s, &BuildPreset::ConditionEvaluator,
+          PresetConditionHelper, false);
+
+ReadFileResult TestPresetOutputVerbosityHelper(
+  TestPreset::OutputOptions::VerbosityEnum& out, const Json::Value* value)
+{
+  if (!value) {
+    out = TestPreset::OutputOptions::VerbosityEnum::Default;
+    return ReadFileResult::READ_OK;
+  }
+
+  if (!value->isString()) {
+    return ReadFileResult::INVALID_PRESET;
+  }
+
+  if (value->asString() == "default") {
+    out = TestPreset::OutputOptions::VerbosityEnum::Default;
+    return ReadFileResult::READ_OK;
+  }
+
+  if (value->asString() == "verbose") {
+    out = TestPreset::OutputOptions::VerbosityEnum::Verbose;
+    return ReadFileResult::READ_OK;
+  }
+
+  if (value->asString() == "extra") {
+    out = TestPreset::OutputOptions::VerbosityEnum::Extra;
+    return ReadFileResult::READ_OK;
+  }
+
+  return ReadFileResult::INVALID_PRESET;
+}
+
+auto const TestPresetOptionalOutputVerbosityHelper =
+  cmJSONOptionalHelper<TestPreset::OutputOptions::VerbosityEnum,
+                       ReadFileResult>(ReadFileResult::READ_OK,
+                                       TestPresetOutputVerbosityHelper);
+
+auto const TestPresetOptionalOutputHelper =
+  cmJSONOptionalHelper<TestPreset::OutputOptions, ReadFileResult>(
+    ReadFileResult::READ_OK,
+    cmJSONObjectHelper<TestPreset::OutputOptions, ReadFileResult>(
+      ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET, false)
+      .Bind("shortProgress"_s, &TestPreset::OutputOptions::ShortProgress,
+            PresetOptionalBoolHelper, false)
+      .Bind("verbosity"_s, &TestPreset::OutputOptions::Verbosity,
+            TestPresetOptionalOutputVerbosityHelper, false)
+      .Bind("debug"_s, &TestPreset::OutputOptions::Debug,
+            PresetOptionalBoolHelper, false)
+      .Bind("outputOnFailure"_s, &TestPreset::OutputOptions::OutputOnFailure,
+            PresetOptionalBoolHelper, false)
+      .Bind("quiet"_s, &TestPreset::OutputOptions::Quiet,
+            PresetOptionalBoolHelper, false)
+      .Bind("outputLogFile"_s, &TestPreset::OutputOptions::OutputLogFile,
+            PresetStringHelper, false)
+      .Bind("labelSummary"_s, &TestPreset::OutputOptions::LabelSummary,
+            PresetOptionalBoolHelper, false)
+      .Bind("subprojectSummary"_s,
+            &TestPreset::OutputOptions::SubprojectSummary,
+            PresetOptionalBoolHelper, false)
+      .Bind("maxPassedTestOutputSize"_s,
+            &TestPreset::OutputOptions::MaxPassedTestOutputSize,
+            PresetOptionalIntHelper, false)
+      .Bind("maxFailedTestOutputSize"_s,
+            &TestPreset::OutputOptions::MaxFailedTestOutputSize,
+            PresetOptionalIntHelper, false)
+      .Bind("maxTestNameWidth"_s, &TestPreset::OutputOptions::MaxTestNameWidth,
+            PresetOptionalIntHelper, false));
+
+auto const TestPresetOptionalFilterIncludeIndexObjectHelper =
+  cmJSONOptionalHelper<TestPreset::IncludeOptions::IndexOptions,
+                       ReadFileResult>(
+    ReadFileResult::READ_OK,
+    cmJSONObjectHelper<TestPreset::IncludeOptions::IndexOptions,
+                       ReadFileResult>(ReadFileResult::READ_OK,
+                                       ReadFileResult::INVALID_PRESET)
+      .Bind("start"_s, &TestPreset::IncludeOptions::IndexOptions::Start,
+            PresetOptionalIntHelper, false)
+      .Bind("end"_s, &TestPreset::IncludeOptions::IndexOptions::End,
+            PresetOptionalIntHelper, false)
+      .Bind("stride"_s, &TestPreset::IncludeOptions::IndexOptions::Stride,
+            PresetOptionalIntHelper, false)
+      .Bind("specificTests"_s,
+            &TestPreset::IncludeOptions::IndexOptions::SpecificTests,
+            PresetVectorIntHelper, false));
+
+ReadFileResult TestPresetOptionalFilterIncludeIndexHelper(
+  cm::optional<TestPreset::IncludeOptions::IndexOptions>& out,
+  const Json::Value* value)
+{
+  if (!value) {
+    out = cm::nullopt;
+    return ReadFileResult::READ_OK;
+  }
+
+  if (value->isString()) {
+    out.emplace();
+    out->IndexFile = value->asString();
+    return ReadFileResult::READ_OK;
+  }
+
+  if (value->isObject()) {
+    return TestPresetOptionalFilterIncludeIndexObjectHelper(out, value);
+  }
+
+  return ReadFileResult::INVALID_PRESET;
+}
+
+auto const TestPresetOptionalFilterIncludeHelper =
+  cmJSONOptionalHelper<TestPreset::IncludeOptions, ReadFileResult>(
+    ReadFileResult::READ_OK,
+    cmJSONObjectHelper<TestPreset::IncludeOptions, ReadFileResult>(
+      ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET)
+      .Bind("name"_s, &TestPreset::IncludeOptions::Name, PresetStringHelper,
+            false)
+      .Bind("label"_s, &TestPreset::IncludeOptions::Label, PresetStringHelper,
+            false)
+      .Bind("index"_s, &TestPreset::IncludeOptions::Index,
+            TestPresetOptionalFilterIncludeIndexHelper, false)
+      .Bind("useUnion"_s, &TestPreset::IncludeOptions::UseUnion,
+            PresetOptionalBoolHelper, false));
+
+auto const TestPresetOptionalFilterExcludeFixturesHelper =
+  cmJSONOptionalHelper<TestPreset::ExcludeOptions::FixturesOptions,
+                       ReadFileResult>(
+    ReadFileResult::READ_OK,
+    cmJSONObjectHelper<TestPreset::ExcludeOptions::FixturesOptions,
+                       ReadFileResult>(ReadFileResult::READ_OK,
+                                       ReadFileResult::INVALID_PRESET)
+      .Bind("any"_s, &TestPreset::ExcludeOptions::FixturesOptions::Any,
+            PresetStringHelper, false)
+      .Bind("setup"_s, &TestPreset::ExcludeOptions::FixturesOptions::Setup,
+            PresetStringHelper, false)
+      .Bind("cleanup"_s, &TestPreset::ExcludeOptions::FixturesOptions::Cleanup,
+            PresetStringHelper, false));
+
+auto const TestPresetOptionalFilterExcludeHelper =
+  cmJSONOptionalHelper<TestPreset::ExcludeOptions, ReadFileResult>(
+    ReadFileResult::READ_OK,
+    cmJSONObjectHelper<TestPreset::ExcludeOptions, ReadFileResult>(
+      ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET)
+      .Bind("name"_s, &TestPreset::ExcludeOptions::Name, PresetStringHelper,
+            false)
+      .Bind("label"_s, &TestPreset::ExcludeOptions::Label, PresetStringHelper,
+            false)
+      .Bind("fixtures"_s, &TestPreset::ExcludeOptions::Fixtures,
+            TestPresetOptionalFilterExcludeFixturesHelper, false));
+
+ReadFileResult TestPresetExecutionShowOnlyHelper(
+  TestPreset::ExecutionOptions::ShowOnlyEnum& out, const Json::Value* value)
+{
+  if (!value || !value->isString()) {
+    return ReadFileResult::INVALID_PRESET;
+  }
+
+  if (value->asString() == "human") {
+    out = TestPreset::ExecutionOptions::ShowOnlyEnum::Human;
+    return ReadFileResult::READ_OK;
+  }
+
+  if (value->asString() == "json-v1") {
+    out = TestPreset::ExecutionOptions::ShowOnlyEnum::JsonV1;
+    return ReadFileResult::READ_OK;
+  }
+
+  return ReadFileResult::INVALID_PRESET;
+}
+
+auto const TestPresetOptionalExecutionShowOnlyHelper =
+  cmJSONOptionalHelper<TestPreset::ExecutionOptions::ShowOnlyEnum,
+                       ReadFileResult>(ReadFileResult::READ_OK,
+                                       TestPresetExecutionShowOnlyHelper);
+
+ReadFileResult TestPresetExecutionModeHelper(
+  TestPreset::ExecutionOptions::RepeatOptions::ModeEnum& out,
+  const Json::Value* value)
+{
+  if (!value) {
+    return ReadFileResult::READ_OK;
+  }
+
+  if (!value->isString()) {
+    return ReadFileResult::INVALID_PRESET;
+  }
+
+  if (value->asString() == "until-fail") {
+    out = TestPreset::ExecutionOptions::RepeatOptions::ModeEnum::UntilFail;
+    return ReadFileResult::READ_OK;
+  }
+
+  if (value->asString() == "until-pass") {
+    out = TestPreset::ExecutionOptions::RepeatOptions::ModeEnum::UntilPass;
+    return ReadFileResult::READ_OK;
+  }
+
+  if (value->asString() == "after-timeout") {
+    out = TestPreset::ExecutionOptions::RepeatOptions::ModeEnum::AfterTimeout;
+    return ReadFileResult::READ_OK;
+  }
+
+  return ReadFileResult::INVALID_PRESET;
+}
+
+auto const TestPresetOptionalExecutionRepeatHelper =
+  cmJSONOptionalHelper<TestPreset::ExecutionOptions::RepeatOptions,
+                       ReadFileResult>(
+    ReadFileResult::READ_OK,
+    cmJSONObjectHelper<TestPreset::ExecutionOptions::RepeatOptions,
+                       ReadFileResult>(ReadFileResult::READ_OK,
+                                       ReadFileResult::INVALID_PRESET)
+      .Bind("mode"_s, &TestPreset::ExecutionOptions::RepeatOptions::Mode,
+            TestPresetExecutionModeHelper, true)
+      .Bind("count"_s, &TestPreset::ExecutionOptions::RepeatOptions::Count,
+            PresetIntHelper, true));
+
+ReadFileResult TestPresetExecutionNoTestsActionHelper(
+  TestPreset::ExecutionOptions::NoTestsActionEnum& out,
+  const Json::Value* value)
+{
+  if (!value) {
+    out = TestPreset::ExecutionOptions::NoTestsActionEnum::Default;
+    return ReadFileResult::READ_OK;
+  }
+
+  if (!value->isString()) {
+    return ReadFileResult::INVALID_PRESET;
+  }
+
+  if (value->asString() == "default") {
+    out = TestPreset::ExecutionOptions::NoTestsActionEnum::Default;
+    return ReadFileResult::READ_OK;
+  }
+
+  if (value->asString() == "error") {
+    out = TestPreset::ExecutionOptions::NoTestsActionEnum::Error;
+    return ReadFileResult::READ_OK;
+  }
+
+  if (value->asString() == "ignore") {
+    out = TestPreset::ExecutionOptions::NoTestsActionEnum::Ignore;
+    return ReadFileResult::READ_OK;
+  }
+
+  return ReadFileResult::INVALID_PRESET;
+}
+
+auto const TestPresetOptionalExecutionNoTestsActionHelper =
+  cmJSONOptionalHelper<TestPreset::ExecutionOptions::NoTestsActionEnum,
+                       ReadFileResult>(ReadFileResult::READ_OK,
+                                       TestPresetExecutionNoTestsActionHelper);
+
+auto const TestPresetExecutionHelper =
+  cmJSONOptionalHelper<TestPreset::ExecutionOptions, ReadFileResult>(
+    ReadFileResult::READ_OK,
+    cmJSONObjectHelper<TestPreset::ExecutionOptions, ReadFileResult>(
+      ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET)
+      .Bind("stopOnFailure"_s, &TestPreset::ExecutionOptions::StopOnFailure,
+            PresetOptionalBoolHelper, false)
+      .Bind("enableFailover"_s, &TestPreset::ExecutionOptions::EnableFailover,
+            PresetOptionalBoolHelper, false)
+      .Bind("jobs"_s, &TestPreset::ExecutionOptions::Jobs,
+            PresetOptionalIntHelper, false)
+      .Bind("resourceSpecFile"_s,
+            &TestPreset::ExecutionOptions::ResourceSpecFile,
+            PresetStringHelper, false)
+      .Bind("testLoad"_s, &TestPreset::ExecutionOptions::TestLoad,
+            PresetOptionalIntHelper, false)
+      .Bind("showOnly"_s, &TestPreset::ExecutionOptions::ShowOnly,
+            TestPresetOptionalExecutionShowOnlyHelper, false)
+      .Bind("repeat"_s, &TestPreset::ExecutionOptions::Repeat,
+            TestPresetOptionalExecutionRepeatHelper, false)
+      .Bind("interactiveDebugging"_s,
+            &TestPreset::ExecutionOptions::InteractiveDebugging,
+            PresetOptionalBoolHelper, false)
+      .Bind("scheduleRandom"_s, &TestPreset::ExecutionOptions::ScheduleRandom,
+            PresetOptionalBoolHelper, false)
+      .Bind("timeout"_s, &TestPreset::ExecutionOptions::Timeout,
+            PresetOptionalIntHelper, false)
+      .Bind("noTestsAction"_s, &TestPreset::ExecutionOptions::NoTestsAction,
+            TestPresetOptionalExecutionNoTestsActionHelper, false));
+
+auto const TestPresetFilterHelper =
+  cmJSONOptionalHelper<TestPreset::FilterOptions, ReadFileResult>(
+    ReadFileResult::READ_OK,
+    cmJSONObjectHelper<TestPreset::FilterOptions, ReadFileResult>(
+      ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET)
+      .Bind("include"_s, &TestPreset::FilterOptions::Include,
+            TestPresetOptionalFilterIncludeHelper, false)
+      .Bind("exclude"_s, &TestPreset::FilterOptions::Exclude,
+            TestPresetOptionalFilterExcludeHelper, false));
+
+auto const TestPresetHelper =
+  cmJSONObjectHelper<TestPreset, ReadFileResult>(
+    ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET, false)
+    .Bind("name"_s, &TestPreset::Name, PresetStringHelper)
+    .Bind("inherits"_s, &TestPreset::Inherits,
+          PresetVectorOneOrMoreStringHelper, false)
+    .Bind("hidden"_s, &TestPreset::Hidden, PresetBoolHelper, false)
+    .Bind<std::nullptr_t>("vendor"_s, nullptr,
+                          VendorHelper(ReadFileResult::INVALID_PRESET), false)
+    .Bind("displayName"_s, &TestPreset::DisplayName, PresetStringHelper, false)
+    .Bind("description"_s, &TestPreset::Description, PresetStringHelper, false)
+    .Bind("environment"_s, &TestPreset::Environment, EnvironmentMapHelper,
+          false)
+    .Bind("configurePreset"_s, &TestPreset::ConfigurePreset,
+          PresetStringHelper, false)
+    .Bind("inheritConfigureEnvironment"_s,
+          &TestPreset::InheritConfigureEnvironment, PresetOptionalBoolHelper,
+          false)
+    .Bind("configuration"_s, &TestPreset::Configuration, PresetStringHelper,
+          false)
+    .Bind("overwriteConfigurationFile"_s,
+          &TestPreset::OverwriteConfigurationFile, PresetVectorStringHelper,
+          false)
+    .Bind("output"_s, &TestPreset::Output, TestPresetOptionalOutputHelper,
+          false)
+    .Bind("filter"_s, &TestPreset::Filter, TestPresetFilterHelper, false)
+    .Bind("execution"_s, &TestPreset::Execution, TestPresetExecutionHelper,
+          false)
+    .Bind("condition"_s, &TestPreset::ConditionEvaluator,
+          PresetConditionHelper, false);
+
+auto const ConfigurePresetsHelper =
+  cmJSONVectorHelper<ConfigurePreset, ReadFileResult>(
+    ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESETS,
+    ConfigurePresetHelper);
+
+auto const BuildPresetsHelper =
+  cmJSONVectorHelper<BuildPreset, ReadFileResult>(
+    ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESETS,
+    BuildPresetHelper);
+
+auto const TestPresetsHelper = cmJSONVectorHelper<TestPreset, ReadFileResult>(
+  ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESETS, TestPresetHelper);
+
+auto const CMakeVersionUIntHelper = cmJSONUIntHelper<ReadFileResult>(
+  ReadFileResult::READ_OK, ReadFileResult::INVALID_VERSION);
+
+auto const CMakeVersionHelper =
+  cmJSONObjectHelper<CMakeVersion, ReadFileResult>(
+    ReadFileResult::READ_OK, ReadFileResult::INVALID_CMAKE_VERSION, false)
+    .Bind("major"_s, &CMakeVersion::Major, CMakeVersionUIntHelper, false)
+    .Bind("minor"_s, &CMakeVersion::Minor, CMakeVersionUIntHelper, false)
+    .Bind("patch"_s, &CMakeVersion::Patch, CMakeVersionUIntHelper, false);
+
+auto const RootPresetsHelper =
+  cmJSONObjectHelper<RootPresets, ReadFileResult>(
+    ReadFileResult::READ_OK, ReadFileResult::INVALID_ROOT, false)
+    .Bind<int>("version"_s, nullptr, VersionHelper)
+    .Bind("configurePresets"_s, &RootPresets::ConfigurePresets,
+          ConfigurePresetsHelper, false)
+    .Bind("buildPresets"_s, &RootPresets::BuildPresets, BuildPresetsHelper,
+          false)
+    .Bind("testPresets"_s, &RootPresets::TestPresets, TestPresetsHelper, false)
+    .Bind("cmakeMinimumRequired"_s, &RootPresets::CMakeMinimumRequired,
+          CMakeVersionHelper, false)
+    .Bind<std::nullptr_t>("vendor"_s, nullptr,
+                          VendorHelper(ReadFileResult::INVALID_ROOT), false);
+}
+
+cmCMakePresetsGraph::ReadFileResult cmCMakePresetsGraph::ReadJSONFile(
+  const std::string& filename, bool user)
+{
+  cmsys::ifstream fin(filename.c_str());
+  if (!fin) {
+    return ReadFileResult::FILE_NOT_FOUND;
+  }
+  // If there's a BOM, toss it.
+  cmsys::FStream::ReadBOM(fin);
+
+  Json::Value root;
+  Json::CharReaderBuilder builder;
+  Json::CharReaderBuilder::strictMode(&builder.settings_);
+  if (!Json::parseFromStream(builder, fin, &root, nullptr)) {
+    return ReadFileResult::JSON_PARSE_ERROR;
+  }
+
+  int v = 0;
+  auto result = RootVersionHelper(v, &root);
+  if (result != ReadFileResult::READ_OK) {
+    return result;
+  }
+  if (v < MIN_VERSION || v > MAX_VERSION) {
+    return ReadFileResult::UNRECOGNIZED_VERSION;
+  }
+  if (user) {
+    this->UserVersion = v;
+  } else {
+    this->Version = v;
+  }
+
+  // Support for build and test presets added in version 2.
+  if (v < 2 &&
+      (root.isMember("buildPresets") || root.isMember("testPresets"))) {
+    return ReadFileResult::BUILD_TEST_PRESETS_UNSUPPORTED;
+  }
+
+  RootPresets presets;
+  if ((result = RootPresetsHelper(presets, &root)) !=
+      ReadFileResult::READ_OK) {
+    return result;
+  }
+
+  unsigned int currentMajor = cmVersion::GetMajorVersion();
+  unsigned int currentMinor = cmVersion::GetMinorVersion();
+  unsigned int currentPatch = cmVersion::GetPatchVersion();
+  auto const& required = presets.CMakeMinimumRequired;
+  if (required.Major > currentMajor ||
+      (required.Major == currentMajor &&
+       (required.Minor > currentMinor ||
+        (required.Minor == currentMinor &&
+         (required.Patch > currentPatch))))) {
+    return ReadFileResult::UNRECOGNIZED_CMAKE_VERSION;
+  }
+
+  for (auto& preset : presets.ConfigurePresets) {
+    preset.User = user;
+    if (preset.Name.empty()) {
+      return ReadFileResult::INVALID_PRESET;
+    }
+
+    PresetPair<ConfigurePreset> presetPair;
+    presetPair.Unexpanded = preset;
+    presetPair.Expanded = cm::nullopt;
+    if (!this->ConfigurePresets
+           .emplace(std::make_pair(preset.Name, presetPair))
+           .second) {
+      return ReadFileResult::DUPLICATE_PRESETS;
+    }
+
+    // Support for installDir presets added in version 3.
+    if (v < 3 && !preset.InstallDir.empty()) {
+      return ReadFileResult::INSTALL_PREFIX_UNSUPPORTED;
+    }
+
+    // Support for conditions added in version 3.
+    if (v < 3 && preset.ConditionEvaluator) {
+      return ReadFileResult::CONDITION_UNSUPPORTED;
+    }
+
+    // Support for toolchainFile presets added in version 3.
+    if (v < 3 && !preset.ToolchainFile.empty()) {
+      return ReadFileResult::TOOLCHAIN_FILE_UNSUPPORTED;
+    }
+
+    this->ConfigurePresetOrder.push_back(preset.Name);
+  }
+
+  for (auto& preset : presets.BuildPresets) {
+    preset.User = user;
+    if (preset.Name.empty()) {
+      return ReadFileResult::INVALID_PRESET;
+    }
+
+    PresetPair<BuildPreset> presetPair;
+    presetPair.Unexpanded = preset;
+    presetPair.Expanded = cm::nullopt;
+    if (!this->BuildPresets.emplace(preset.Name, presetPair).second) {
+      return ReadFileResult::DUPLICATE_PRESETS;
+    }
+
+    // Support for conditions added in version 3.
+    if (v < 3 && preset.ConditionEvaluator) {
+      return ReadFileResult::CONDITION_UNSUPPORTED;
+    }
+
+    this->BuildPresetOrder.push_back(preset.Name);
+  }
+
+  for (auto& preset : presets.TestPresets) {
+    preset.User = user;
+    if (preset.Name.empty()) {
+      return ReadFileResult::INVALID_PRESET;
+    }
+
+    PresetPair<TestPreset> presetPair;
+    presetPair.Unexpanded = preset;
+    presetPair.Expanded = cm::nullopt;
+    if (!this->TestPresets.emplace(preset.Name, presetPair).second) {
+      return ReadFileResult::DUPLICATE_PRESETS;
+    }
+
+    // Support for conditions added in version 3.
+    if (v < 3 && preset.ConditionEvaluator) {
+      return ReadFileResult::CONDITION_UNSUPPORTED;
+    }
+
+    this->TestPresetOrder.push_back(preset.Name);
+  }
+
+  return ReadFileResult::READ_OK;
+}