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138 lines
4.1 KiB
138 lines
4.1 KiB
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#include "cmCMakeLanguageCommand.h"
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#include <algorithm>
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#include <array>
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#include <cstddef>
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#include <memory>
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#include <string>
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#include <cm/string_view>
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#include <cmext/string_view>
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#include "cmExecutionStatus.h"
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#include "cmListFileCache.h"
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#include "cmMakefile.h"
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#include "cmRange.h"
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#include "cmStringAlgorithms.h"
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#include "cmSystemTools.h"
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namespace {
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std::array<cm::static_string_view, 12> InvalidCommands{
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{ // clang-format off
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"function"_s, "endfunction"_s,
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"macro"_s, "endmacro"_s,
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"if"_s, "elseif"_s, "else"_s, "endif"_s,
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"while"_s, "endwhile"_s,
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"foreach"_s, "endforeach"_s
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} // clang-format on
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};
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}
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bool cmCMakeLanguageCommand(std::vector<cmListFileArgument> const& args,
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cmExecutionStatus& status)
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{
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if (args.empty()) {
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status.SetError("called with incorrect number of arguments");
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return false;
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}
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cmMakefile& makefile = status.GetMakefile();
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cmListFileContext context = makefile.GetExecutionContext();
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bool result = false;
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std::vector<std::string> dispatchExpandedArgs;
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std::vector<cmListFileArgument> dispatchArgs;
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dispatchArgs.emplace_back(args[0]);
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makefile.ExpandArguments(dispatchArgs, dispatchExpandedArgs);
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if (dispatchExpandedArgs.empty()) {
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status.SetError("called with incorrect number of arguments");
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return false;
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}
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if (dispatchExpandedArgs[0] == "CALL") {
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if ((args.size() == 1 && dispatchExpandedArgs.size() != 2) ||
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dispatchExpandedArgs.size() > 2) {
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status.SetError("called with incorrect number of arguments");
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return false;
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}
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// First argument is the name of the function to call
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std::string callCommand;
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size_t startArg;
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if (dispatchExpandedArgs.size() == 1) {
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std::vector<std::string> functionExpandedArg;
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std::vector<cmListFileArgument> functionArg;
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functionArg.emplace_back(args[1]);
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makefile.ExpandArguments(functionArg, functionExpandedArg);
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if (functionExpandedArg.size() != 1) {
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status.SetError("called with incorrect number of arguments");
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return false;
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}
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callCommand = functionExpandedArg[0];
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startArg = 2;
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} else {
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callCommand = dispatchExpandedArgs[1];
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startArg = 1;
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}
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// ensure specified command is valid
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// start/end flow control commands are not allowed
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auto cmd = cmSystemTools::LowerCase(callCommand);
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if (std::find(InvalidCommands.cbegin(), InvalidCommands.cend(), cmd) !=
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InvalidCommands.cend()) {
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status.SetError(cmStrCat("invalid command specified: "_s, callCommand));
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return false;
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}
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cmListFileFunction func;
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func.Name = callCommand;
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func.Line = context.Line;
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// The rest of the arguments are passed to the function call above
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for (size_t i = startArg; i < args.size(); ++i) {
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cmListFileArgument lfarg;
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lfarg.Delim = args[i].Delim;
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lfarg.Line = context.Line;
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lfarg.Value = args[i].Value;
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func.Arguments.emplace_back(lfarg);
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}
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result = makefile.ExecuteCommand(func, status);
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} else if (dispatchExpandedArgs[0] == "EVAL") {
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std::vector<std::string> expandedArgs;
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makefile.ExpandArguments(args, expandedArgs);
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if (expandedArgs.size() < 2) {
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status.SetError("called with incorrect number of arguments");
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return false;
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}
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if (expandedArgs[1] != "CODE") {
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auto code_iter =
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std::find(expandedArgs.begin() + 2, expandedArgs.end(), "CODE");
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if (code_iter == expandedArgs.end()) {
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status.SetError("called without CODE argument");
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} else {
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status.SetError(
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"called with unsupported arguments between EVAL and CODE arguments");
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}
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return false;
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}
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const std::string code =
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cmJoin(cmMakeRange(expandedArgs.begin() + 2, expandedArgs.end()), " ");
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result = makefile.ReadListFileAsString(
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code, cmStrCat(context.FilePath, ":", context.Line, ":EVAL"));
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} else {
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status.SetError("called with unknown meta-operation");
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}
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return result;
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}
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