cmRulePlaceholderExpander: Extract from cmLocalGenerator

Implement cmLocalGenerator::ExpandRuleVariables in terms of the new
class for source compatibility and to reduce diff noise in this commit.

1 files changed, 6 insertions, 282 deletions

diff --git a/Source/cmLocalGenerator.cxx b/Source/cmLocalGenerator.cxx
index 849ffe4..615168d 100644
--- a/Source/cmLocalGenerator.cxx
+++ b/Source/cmLocalGenerator.cxx
@@ -14,6 +14,7 @@
 #include "cmInstallTargetGenerator.h"
 #include "cmLinkLineComputer.h"
 #include "cmMakefile.h"
+#include "cmRulePlaceholderExpander.h"
 #include "cmSourceFile.h"
 #include "cmSystemTools.h"
 #include "cmTarget.h"
@@ -560,292 +561,15 @@ cmState::Snapshot cmLocalGenerator::GetStateSnapshot() const
   return this->Makefile->GetStateSnapshot();
 }
 
-cmLocalGenerator::RuleVariables::RuleVariables()
-{
-  memset(this, 0, sizeof(*this));
-}
-
-std::string cmLocalGenerator::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.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[0] != '\"') {
-        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[0] == '\"' && unquoted[sz - 1] == '\"') {
-        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 != targetBase.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()),
-      SHELL);
-  }
-
-  std::map<std::string, std::string>::iterator 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[compIt->first + "_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);
-    }
-    if (!this->CompilerSysroot.empty() && !compilerOptionSysroot.empty()) {
-      ret += " ";
-      ret += compilerOptionSysroot;
-      ret += outputConverter->EscapeForShell(this->CompilerSysroot, true);
-    }
-    return ret;
-  }
-
-  std::map<std::string, std::string>::iterator mapIt =
-    this->VariableMappings.find(variable);
-  if (mapIt != this->VariableMappings.end()) {
-    if (variable.find("_FLAG") == variable.npos) {
-      return outputConverter->ConvertToOutputForExisting(mapIt->second);
-    }
-    return mapIt->second;
-  }
-  return variable;
-}
-
 void cmLocalGenerator::ExpandRuleVariables(cmOutputConverter* outputConverter,
                                            std::string& s,
                                            const RuleVariables& replaceValues)
 {
-  std::string::size_type start = s.find('<');
-  // no variables to expand
-  if (start == s.npos) {
-    return;
-  }
-  std::string::size_type pos = 0;
-  std::string expandedInput;
-  while (start != s.npos && start < s.size() - 2) {
-    std::string::size_type end = s.find('>', start);
-    // if we find a < with no > we are done
-    if (end == s.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;
+  cmRulePlaceholderExpander rulePlaceholderExpander(
+    this->Compilers, this->VariableMappings, this->CompilerSysroot);
+  rulePlaceholderExpander.SetTargetImpLib(this->TargetImplib);
+  rulePlaceholderExpander.ExpandRuleVariables(outputConverter, s,
+                                              replaceValues);
 }
 
 const char* cmLocalGenerator::GetRuleLauncher(cmGeneratorTarget* target,