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https://github.com/Kitware/CMake.git
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9b334397f5
This patch is generated by a python script that uses regular expressions to search for string concatenation patterns of the kind ``` std::string str = <ARG0>; str += <ARG1>; str += <ARG2>; ... ``` and replaces them with a single `cmStrCat` call ``` std::string str = cmStrCat(<ARG0>, <ARG1>, <ARG2>, ...); ``` If any `<ARGX>` is itself a concatenated string of the kind ``` a + b + c + ...; ``` then `<ARGX>` is split into multiple arguments for the `cmStrCat` call. If there's a sequence of literals in the `<ARGX>`, then all literals in the sequence are concatenated and merged into a single literal argument for the `cmStrCat` call. Single character strings are converted to single char arguments for the `cmStrCat` call. `std::to_string(...)` wrappings are removed from `cmStrCat` arguments, because it supports numeric types as well as string types. `arg.substr(x)` arguments to `cmStrCat` are replaced with `cm::string_view(arg).substr(x)`
65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
/* 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 "cmVariableRequiresCommand.h"
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#include "cmMakefile.h"
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#include "cmState.h"
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#include "cmStringAlgorithms.h"
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#include "cmSystemTools.h"
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class cmExecutionStatus;
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// cmLibraryCommand
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bool cmVariableRequiresCommand::InitialPass(
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std::vector<std::string> const& args, cmExecutionStatus&)
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{
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if (args.size() < 3) {
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this->SetError("called with incorrect number of arguments");
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return false;
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}
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std::string const& testVariable = args[0];
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if (!this->Makefile->IsOn(testVariable)) {
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return true;
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}
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std::string const& resultVariable = args[1];
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bool requirementsMet = true;
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std::string notSet;
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bool hasAdvanced = false;
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cmState* state = this->Makefile->GetState();
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for (unsigned int i = 2; i < args.size(); ++i) {
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if (!this->Makefile->IsOn(args[i])) {
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requirementsMet = false;
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notSet += args[i];
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notSet += "\n";
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if (state->GetCacheEntryValue(args[i]) &&
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state->GetCacheEntryPropertyAsBool(args[i], "ADVANCED")) {
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hasAdvanced = true;
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}
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}
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}
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const char* reqVar = this->Makefile->GetDefinition(resultVariable);
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// if reqVar is unset, then set it to requirementsMet
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// if reqVar is set to true, but requirementsMet is false , then
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// set reqVar to false.
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if (!reqVar || (!requirementsMet && this->Makefile->IsOn(reqVar))) {
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this->Makefile->AddDefinitionBool(resultVariable, requirementsMet);
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}
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if (!requirementsMet) {
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std::string message =
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cmStrCat("Variable assertion failed:\n", testVariable,
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" Requires that the following unset variables are set:\n",
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notSet, "\nPlease set them, or set ", testVariable,
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" to false, and re-configure.\n");
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if (hasAdvanced) {
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message +=
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"One or more of the required variables is advanced."
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" To set the variable, you must turn on advanced mode in cmake.";
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}
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cmSystemTools::Error(message);
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}
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return true;
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}
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