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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "tools/gn/tool.h"
#include "tools/gn/c_tool.h"
#include "tools/gn/general_tool.h"
#include "tools/gn/rust_tool.h"
#include "tools/gn/target.h"
const char* Tool::kToolNone = "";
Tool::Tool(const char* n) : name_(n) {}
Tool::~Tool() = default;
void Tool::SetToolComplete() {
DCHECK(!complete_);
complete_ = true;
command_.FillRequiredTypes(&substitution_bits_);
depfile_.FillRequiredTypes(&substitution_bits_);
description_.FillRequiredTypes(&substitution_bits_);
outputs_.FillRequiredTypes(&substitution_bits_);
rspfile_.FillRequiredTypes(&substitution_bits_);
rspfile_content_.FillRequiredTypes(&substitution_bits_);
}
GeneralTool* Tool::AsGeneral() {
return nullptr;
}
const GeneralTool* Tool::AsGeneral() const {
return nullptr;
}
CTool* Tool::AsC() {
return nullptr;
}
const CTool* Tool::AsC() const {
return nullptr;
}
RustTool* Tool::AsRust() {
return nullptr;
}
const RustTool* Tool::AsRust() const {
return nullptr;
}
bool Tool::IsPatternInOutputList(const SubstitutionList& output_list,
const SubstitutionPattern& pattern) const {
for (const auto& cur : output_list.list()) {
if (pattern.ranges().size() == cur.ranges().size() &&
std::equal(pattern.ranges().begin(), pattern.ranges().end(),
cur.ranges().begin()))
return true;
}
return false;
}
bool Tool::ValidateSubstitutionList(
const std::vector<const Substitution*>& list,
const Value* origin,
Err* err) const {
for (const auto& cur_type : list) {
if (!ValidateSubstitution(cur_type)) {
*err = Err(*origin, "Pattern not valid here.",
"You used the pattern " + std::string(cur_type->name) +
" which is not valid\nfor this variable.");
return false;
}
}
return true;
}
bool Tool::ReadBool(Scope* scope, const char* var, bool* field, Err* err) {
DCHECK(!complete_);
const Value* v = scope->GetValue(var, true);
if (!v)
return true; // Not present is fine.
if (!v->VerifyTypeIs(Value::BOOLEAN, err))
return false;
*field = v->boolean_value();
return true;
}
bool Tool::ReadString(Scope* scope,
const char* var,
std::string* field,
Err* err) {
DCHECK(!complete_);
const Value* v = scope->GetValue(var, true);
if (!v)
return true; // Not present is fine.
if (!v->VerifyTypeIs(Value::STRING, err))
return false;
*field = v->string_value();
return true;
}
bool Tool::ReadPattern(Scope* scope,
const char* var,
SubstitutionPattern* field,
Err* err) {
DCHECK(!complete_);
const Value* value = scope->GetValue(var, true);
if (!value)
return true; // Not present is fine.
if (!value->VerifyTypeIs(Value::STRING, err))
return false;
SubstitutionPattern pattern;
if (!pattern.Parse(*value, err))
return false;
if (!ValidateSubstitutionList(pattern.required_types(), value, err))
return false;
*field = std::move(pattern);
return true;
}
bool Tool::ReadPatternList(Scope* scope,
const char* var,
SubstitutionList* field,
Err* err) {
DCHECK(!complete_);
const Value* value = scope->GetValue(var, true);
if (!value)
return true; // Not present is fine.
if (!value->VerifyTypeIs(Value::LIST, err))
return false;
SubstitutionList list;
if (!list.Parse(*value, err))
return false;
// Validate the right kinds of patterns are used.
if (!ValidateSubstitutionList(list.required_types(), value, err))
return false;
*field = std::move(list);
return true;
}
bool Tool::ReadLabel(Scope* scope,
const char* var,
const Label& current_toolchain,
LabelPtrPair<Pool>* field,
Err* err) {
DCHECK(!complete_);
const Value* v = scope->GetValue(var, true);
if (!v)
return true; // Not present is fine.
Label label =
Label::Resolve(scope->GetSourceDir(), current_toolchain, *v, err);
if (err->has_error())
return false;
LabelPtrPair<Pool> pair(label);
pair.origin = defined_from();
*field = std::move(pair);
return true;
}
bool Tool::ReadOutputExtension(Scope* scope, Err* err) {
DCHECK(!complete_);
const Value* value = scope->GetValue("default_output_extension", true);
if (!value)
return true; // Not present is fine.
if (!value->VerifyTypeIs(Value::STRING, err))
return false;
if (value->string_value().empty())
return true; // Accept empty string.
if (value->string_value()[0] != '.') {
*err = Err(*value, "default_output_extension must begin with a '.'");
return false;
}
set_default_output_extension(value->string_value());
return true;
}
bool Tool::InitTool(Scope* scope, Toolchain* toolchain, Err* err) {
if (!ReadPattern(scope, "command", &command_, err) ||
!ReadString(scope, "command_launcher", &command_launcher_, err) ||
!ReadOutputExtension(scope, err) ||
!ReadPattern(scope, "depfile", &depfile_, err) ||
!ReadPattern(scope, "description", &description_, err) ||
!ReadPatternList(scope, "runtime_outputs", &runtime_outputs_, err) ||
!ReadString(scope, "output_prefix", &output_prefix_, err) ||
!ReadPattern(scope, "default_output_dir", &default_output_dir_, err) ||
!ReadBool(scope, "restat", &restat_, err) ||
!ReadPattern(scope, "rspfile", &rspfile_, err) ||
!ReadPattern(scope, "rspfile_content", &rspfile_content_, err) ||
!ReadLabel(scope, "pool", toolchain->label(), &pool_, err)) {
return false;
}
return true;
}
std::unique_ptr<Tool> Tool::CreateTool(const ParseNode* function,
const std::string& name,
Scope* scope,
Toolchain* toolchain,
Err* err) {
std::unique_ptr<Tool> tool = CreateTool(name);
if (!tool) {
*err = Err(function, "Unknown tool type.");
return nullptr;
}
if (CTool* c_tool = tool->AsC()) {
if (c_tool->InitTool(scope, toolchain, err))
return tool;
return nullptr;
}
if (GeneralTool* general_tool = tool->AsGeneral()) {
if (general_tool->InitTool(scope, toolchain, err))
return tool;
return nullptr;
}
if (RustTool* rust_tool = tool->AsRust()) {
if (rust_tool->InitTool(scope, toolchain, err))
return tool;
return nullptr;
}
NOTREACHED();
*err = Err(function, "Unknown tool type.");
return nullptr;
}
// static
std::unique_ptr<Tool> Tool::CreateTool(const std::string& name) {
// C tools
if (name == CTool::kCToolCc)
return std::make_unique<CTool>(CTool::kCToolCc);
else if (name == CTool::kCToolCxx)
return std::make_unique<CTool>(CTool::kCToolCxx);
else if (name == CTool::kCToolObjC)
return std::make_unique<CTool>(CTool::kCToolObjC);
else if (name == CTool::kCToolObjCxx)
return std::make_unique<CTool>(CTool::kCToolObjCxx);
else if (name == CTool::kCToolRc)
return std::make_unique<CTool>(CTool::kCToolRc);
else if (name == CTool::kCToolAsm)
return std::make_unique<CTool>(CTool::kCToolAsm);
else if (name == CTool::kCToolAlink)
return std::make_unique<CTool>(CTool::kCToolAlink);
else if (name == CTool::kCToolSolink)
return std::make_unique<CTool>(CTool::kCToolSolink);
else if (name == CTool::kCToolSolinkModule)
return std::make_unique<CTool>(CTool::kCToolSolinkModule);
else if (name == CTool::kCToolLink)
return std::make_unique<CTool>(CTool::kCToolLink);
// General tools
else if (name == GeneralTool::kGeneralToolAction)
return std::make_unique<GeneralTool>(GeneralTool::kGeneralToolAction);
else if (name == GeneralTool::kGeneralToolStamp)
return std::make_unique<GeneralTool>(GeneralTool::kGeneralToolStamp);
else if (name == GeneralTool::kGeneralToolCopy)
return std::make_unique<GeneralTool>(GeneralTool::kGeneralToolCopy);
else if (name == GeneralTool::kGeneralToolCopyBundleData)
return std::make_unique<GeneralTool>(
GeneralTool::kGeneralToolCopyBundleData);
else if (name == GeneralTool::kGeneralToolCompileXCAssets)
return std::make_unique<GeneralTool>(
GeneralTool::kGeneralToolCompileXCAssets);
// Rust tool
else if (name == RustTool::kRsToolRustc)
return std::make_unique<RustTool>(RustTool::kRsToolRustc);
return nullptr;
}
// static
const char* Tool::GetToolTypeForSourceType(SourceFile::Type type) {
switch (type) {
case SourceFile::SOURCE_C:
return CTool::kCToolCc;
case SourceFile::SOURCE_CPP:
return CTool::kCToolCxx;
case SourceFile::SOURCE_M:
return CTool::kCToolObjC;
case SourceFile::SOURCE_MM:
return CTool::kCToolObjCxx;
case SourceFile::SOURCE_ASM:
case SourceFile::SOURCE_S:
return CTool::kCToolAsm;
case SourceFile::SOURCE_RC:
return CTool::kCToolRc;
case SourceFile::SOURCE_RS:
return RustTool::kRsToolRustc;
case SourceFile::SOURCE_UNKNOWN:
case SourceFile::SOURCE_H:
case SourceFile::SOURCE_O:
case SourceFile::SOURCE_DEF:
case SourceFile::SOURCE_GO:
return kToolNone;
default:
NOTREACHED();
return kToolNone;
}
}
// static
const char* Tool::GetToolTypeForTargetFinalOutput(const Target* target) {
// The contents of this list might be suprising (i.e. stamp tool for copy
// rules). See the header for why.
// TODO(crbug.com/gn/39): Don't emit stamp files for single-output targets.
if (target->source_types_used().RustSourceUsed())
return RustTool::kRsToolRustc;
switch (target->output_type()) {
case Target::GROUP:
return GeneralTool::kGeneralToolStamp;
case Target::EXECUTABLE:
return CTool::kCToolLink;
case Target::SHARED_LIBRARY:
return CTool::kCToolSolink;
case Target::LOADABLE_MODULE:
return CTool::kCToolSolinkModule;
case Target::STATIC_LIBRARY:
return CTool::kCToolAlink;
case Target::SOURCE_SET:
return GeneralTool::kGeneralToolStamp;
case Target::ACTION:
case Target::ACTION_FOREACH:
case Target::BUNDLE_DATA:
case Target::CREATE_BUNDLE:
case Target::COPY_FILES:
case Target::GENERATED_FILE:
return GeneralTool::kGeneralToolStamp;
default:
NOTREACHED();
return kToolNone;
}
}