CMake/Source/cmRulePlaceholderExpander.cxx
2019-09-16 10:11:13 -04:00

342 lines
10 KiB
C++

/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmRulePlaceholderExpander.h"
#include <cctype>
#include <cstring>
#include <utility>
#include "cmOutputConverter.h"
#include "cmSystemTools.h"
cmRulePlaceholderExpander::cmRulePlaceholderExpander(
std::map<std::string, std::string> compilers,
std::map<std::string, std::string> variableMappings,
std::string compilerSysroot, std::string linkerSysroot)
: Compilers(std::move(compilers))
, VariableMappings(std::move(variableMappings))
, CompilerSysroot(std::move(compilerSysroot))
, LinkerSysroot(std::move(linkerSysroot))
{
}
cmRulePlaceholderExpander::RuleVariables::RuleVariables()
{
memset(this, 0, sizeof(*this));
}
std::string cmRulePlaceholderExpander::ExpandRuleVariable(
cmOutputConverter* outputConverter, std::string const& variable,
const RuleVariables& replaceValues)
{
if (replaceValues.LinkFlags) {
if (variable == "LINK_FLAGS") {
return replaceValues.LinkFlags;
}
}
if (replaceValues.Manifests) {
if (variable == "MANIFESTS") {
return replaceValues.Manifests;
}
}
if (replaceValues.Flags) {
if (variable == "FLAGS") {
return replaceValues.Flags;
}
}
if (replaceValues.Source) {
if (variable == "SOURCE") {
return replaceValues.Source;
}
}
if (replaceValues.PreprocessedSource) {
if (variable == "PREPROCESSED_SOURCE") {
return replaceValues.PreprocessedSource;
}
}
if (replaceValues.AssemblySource) {
if (variable == "ASSEMBLY_SOURCE") {
return replaceValues.AssemblySource;
}
}
if (replaceValues.Object) {
if (variable == "OBJECT") {
return replaceValues.Object;
}
}
if (replaceValues.ObjectDir) {
if (variable == "OBJECT_DIR") {
return replaceValues.ObjectDir;
}
}
if (replaceValues.ObjectFileDir) {
if (variable == "OBJECT_FILE_DIR") {
return replaceValues.ObjectFileDir;
}
}
if (replaceValues.Objects) {
if (variable == "OBJECTS") {
return replaceValues.Objects;
}
}
if (replaceValues.ObjectsQuoted) {
if (variable == "OBJECTS_QUOTED") {
return replaceValues.ObjectsQuoted;
}
}
if (replaceValues.Defines && variable == "DEFINES") {
return replaceValues.Defines;
}
if (replaceValues.Includes && variable == "INCLUDES") {
return replaceValues.Includes;
}
if (replaceValues.SwiftLibraryName) {
if (variable == "SWIFT_LIBRARY_NAME") {
return replaceValues.SwiftLibraryName;
}
}
if (replaceValues.SwiftModule) {
if (variable == "SWIFT_MODULE") {
return replaceValues.SwiftModule;
}
}
if (replaceValues.SwiftModuleName) {
if (variable == "SWIFT_MODULE_NAME") {
return replaceValues.SwiftModuleName;
}
}
if (replaceValues.SwiftOutputFileMap) {
if (variable == "SWIFT_OUTPUT_FILE_MAP") {
return replaceValues.SwiftOutputFileMap;
}
}
if (replaceValues.SwiftSources) {
if (variable == "SWIFT_SOURCES") {
return replaceValues.SwiftSources;
}
}
if (replaceValues.TargetPDB) {
if (variable == "TARGET_PDB") {
return replaceValues.TargetPDB;
}
}
if (replaceValues.TargetCompilePDB) {
if (variable == "TARGET_COMPILE_PDB") {
return replaceValues.TargetCompilePDB;
}
}
if (replaceValues.DependencyFile) {
if (variable == "DEP_FILE") {
return replaceValues.DependencyFile;
}
}
if (replaceValues.Target) {
if (variable == "TARGET_QUOTED") {
std::string targetQuoted = replaceValues.Target;
if (!targetQuoted.empty() && targetQuoted.front() != '\"') {
targetQuoted = '\"';
targetQuoted += replaceValues.Target;
targetQuoted += '\"';
}
return targetQuoted;
}
if (variable == "TARGET_UNQUOTED") {
std::string unquoted = replaceValues.Target;
std::string::size_type sz = unquoted.size();
if (sz > 2 && unquoted.front() == '\"' && unquoted.back() == '\"') {
unquoted = unquoted.substr(1, sz - 2);
}
return unquoted;
}
if (replaceValues.LanguageCompileFlags) {
if (variable == "LANGUAGE_COMPILE_FLAGS") {
return replaceValues.LanguageCompileFlags;
}
}
if (replaceValues.Target) {
if (variable == "TARGET") {
return replaceValues.Target;
}
}
if (variable == "TARGET_IMPLIB") {
return this->TargetImpLib;
}
if (variable == "TARGET_VERSION_MAJOR") {
if (replaceValues.TargetVersionMajor) {
return replaceValues.TargetVersionMajor;
}
return "0";
}
if (variable == "TARGET_VERSION_MINOR") {
if (replaceValues.TargetVersionMinor) {
return replaceValues.TargetVersionMinor;
}
return "0";
}
if (replaceValues.Target) {
if (variable == "TARGET_BASE") {
// Strip the last extension off the target name.
std::string targetBase = replaceValues.Target;
std::string::size_type pos = targetBase.rfind('.');
if (pos != std::string::npos) {
return targetBase.substr(0, pos);
}
return targetBase;
}
}
}
if (variable == "TARGET_SONAME" || variable == "SONAME_FLAG" ||
variable == "TARGET_INSTALLNAME_DIR") {
// All these variables depend on TargetSOName
if (replaceValues.TargetSOName) {
if (variable == "TARGET_SONAME") {
return replaceValues.TargetSOName;
}
if (variable == "SONAME_FLAG" && replaceValues.SONameFlag) {
return replaceValues.SONameFlag;
}
if (replaceValues.TargetInstallNameDir &&
variable == "TARGET_INSTALLNAME_DIR") {
return replaceValues.TargetInstallNameDir;
}
}
return "";
}
if (replaceValues.LinkLibraries) {
if (variable == "LINK_LIBRARIES") {
return replaceValues.LinkLibraries;
}
}
if (replaceValues.Language) {
if (variable == "LANGUAGE") {
return replaceValues.Language;
}
}
if (replaceValues.CMTargetName) {
if (variable == "TARGET_NAME") {
return replaceValues.CMTargetName;
}
}
if (replaceValues.CMTargetType) {
if (variable == "TARGET_TYPE") {
return replaceValues.CMTargetType;
}
}
if (replaceValues.Output) {
if (variable == "OUTPUT") {
return replaceValues.Output;
}
}
if (variable == "CMAKE_COMMAND") {
return outputConverter->ConvertToOutputFormat(
cmSystemTools::CollapseFullPath(cmSystemTools::GetCMakeCommand()),
cmOutputConverter::SHELL);
}
auto compIt = this->Compilers.find(variable);
if (compIt != this->Compilers.end()) {
std::string ret = outputConverter->ConvertToOutputForExisting(
this->VariableMappings["CMAKE_" + compIt->second + "_COMPILER"]);
std::string const& compilerArg1 =
this->VariableMappings["CMAKE_" + compIt->second + "_COMPILER_ARG1"];
std::string const& compilerTarget =
this->VariableMappings["CMAKE_" + compIt->second + "_COMPILER_TARGET"];
std::string const& compilerOptionTarget =
this->VariableMappings["CMAKE_" + compIt->second +
"_COMPILE_OPTIONS_TARGET"];
std::string const& compilerExternalToolchain =
this->VariableMappings["CMAKE_" + compIt->second +
"_COMPILER_EXTERNAL_TOOLCHAIN"];
std::string const& compilerOptionExternalToolchain =
this->VariableMappings["CMAKE_" + compIt->second +
"_COMPILE_OPTIONS_EXTERNAL_TOOLCHAIN"];
std::string const& compilerOptionSysroot =
this->VariableMappings["CMAKE_" + compIt->second +
"_COMPILE_OPTIONS_SYSROOT"];
// if there is a required first argument to the compiler add it
// to the compiler string
if (!compilerArg1.empty()) {
ret += " ";
ret += compilerArg1;
}
if (!compilerTarget.empty() && !compilerOptionTarget.empty()) {
ret += " ";
ret += compilerOptionTarget;
ret += compilerTarget;
}
if (!compilerExternalToolchain.empty() &&
!compilerOptionExternalToolchain.empty()) {
ret += " ";
ret += compilerOptionExternalToolchain;
ret += outputConverter->EscapeForShell(compilerExternalToolchain, true);
}
std::string sysroot;
// Some platforms may use separate sysroots for compiling and linking.
// If we detect link flags, then we pass the link sysroot instead.
// FIXME: Use a more robust way to detect link line expansion.
if (replaceValues.LinkFlags) {
sysroot = this->LinkerSysroot;
} else {
sysroot = this->CompilerSysroot;
}
if (!sysroot.empty() && !compilerOptionSysroot.empty()) {
ret += " ";
ret += compilerOptionSysroot;
ret += outputConverter->EscapeForShell(sysroot, true);
}
return ret;
}
auto mapIt = this->VariableMappings.find(variable);
if (mapIt != this->VariableMappings.end()) {
if (variable.find("_FLAG") == std::string::npos) {
return outputConverter->ConvertToOutputForExisting(mapIt->second);
}
return mapIt->second;
}
return variable;
}
void cmRulePlaceholderExpander::ExpandRuleVariables(
cmOutputConverter* outputConverter, std::string& s,
const RuleVariables& replaceValues)
{
std::string::size_type start = s.find('<');
// no variables to expand
if (start == std::string::npos) {
return;
}
std::string::size_type pos = 0;
std::string expandedInput;
while (start != std::string::npos && start < s.size() - 2) {
std::string::size_type end = s.find('>', start);
// if we find a < with no > we are done
if (end == std::string::npos) {
return;
}
char c = s[start + 1];
// if the next char after the < is not A-Za-z then
// skip it and try to find the next < in the string
if (!isalpha(c)) {
start = s.find('<', start + 1);
} else {
// extract the var
std::string var = s.substr(start + 1, end - start - 1);
std::string replace =
this->ExpandRuleVariable(outputConverter, var, replaceValues);
expandedInput += s.substr(pos, start - pos);
expandedInput += replace;
// move to next one
start = s.find('<', start + var.size() + 2);
pos = end + 1;
}
}
// add the rest of the input
expandedInput += s.substr(pos, s.size() - pos);
s = expandedInput;
}