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-rw-r--r--Source/cmIfCommand.cxx291
1 files changed, 143 insertions, 148 deletions
diff --git a/Source/cmIfCommand.cxx b/Source/cmIfCommand.cxx
index d1f8f58e2..290e064b4 100644
--- a/Source/cmIfCommand.cxx
+++ b/Source/cmIfCommand.cxx
@@ -2,17 +2,26 @@
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmIfCommand.h"
+#include <string>
+#include <utility>
+
+#include <cm/memory>
+#include <cm/string_view>
+
+#include "cm_static_string_view.hxx"
+
#include "cmConditionEvaluator.h"
#include "cmExecutionStatus.h"
#include "cmExpandedCommandArgument.h"
+#include "cmFunctionBlocker.h"
+#include "cmListFileCache.h"
#include "cmMakefile.h"
#include "cmMessageType.h"
#include "cmOutputConverter.h"
+#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
#include "cmake.h"
-#include <memory> // IWYU pragma: keep
-
static std::string cmIfCommandError(
std::vector<cmExpandedCommandArgument> const& args)
{
@@ -25,192 +34,178 @@ static std::string cmIfCommandError(
return err;
}
-//=========================================================================
-bool cmIfFunctionBlocker::IsFunctionBlocked(const cmListFileFunction& lff,
- cmMakefile& mf,
- cmExecutionStatus& inStatus)
+class cmIfFunctionBlocker : public cmFunctionBlocker
+{
+public:
+ cm::string_view StartCommandName() const override { return "if"_s; }
+ cm::string_view EndCommandName() const override { return "endif"_s; }
+
+ bool ArgumentsMatch(cmListFileFunction const& lff,
+ cmMakefile&) const override;
+
+ bool Replay(std::vector<cmListFileFunction> functions,
+ cmExecutionStatus& inStatus) override;
+
+ std::vector<cmListFileArgument> Args;
+ bool IsBlocking;
+ bool HasRun = false;
+ bool ElseSeen = false;
+};
+
+bool cmIfFunctionBlocker::ArgumentsMatch(cmListFileFunction const& lff,
+ cmMakefile&) const
{
- // we start by recording all the functions
- if (lff.Name.Lower == "if") {
- this->ScopeDepth++;
- } else if (lff.Name.Lower == "endif") {
- this->ScopeDepth--;
- // if this is the endif for this if statement, then start executing
- if (!this->ScopeDepth) {
- // Remove the function blocker for this scope or bail.
- std::unique_ptr<cmFunctionBlocker> fb(
- mf.RemoveFunctionBlocker(this, lff));
- if (!fb) {
- return false;
+ return lff.Arguments.empty() || lff.Arguments == this->Args;
+}
+
+bool cmIfFunctionBlocker::Replay(std::vector<cmListFileFunction> functions,
+ cmExecutionStatus& inStatus)
+{
+ cmMakefile& mf = inStatus.GetMakefile();
+ // execute the functions for the true parts of the if statement
+ int scopeDepth = 0;
+ for (cmListFileFunction const& func : functions) {
+ // keep track of scope depth
+ if (func.Name.Lower == "if") {
+ scopeDepth++;
+ }
+ if (func.Name.Lower == "endif") {
+ scopeDepth--;
+ }
+ // watch for our state change
+ if (scopeDepth == 0 && func.Name.Lower == "else") {
+
+ if (this->ElseSeen) {
+ cmListFileBacktrace bt = mf.GetBacktrace(func);
+ mf.GetCMakeInstance()->IssueMessage(
+ MessageType::FATAL_ERROR,
+ "A duplicate ELSE command was found inside an IF block.", bt);
+ cmSystemTools::SetFatalErrorOccured();
+ return true;
}
- // execute the functions for the true parts of the if statement
- cmExecutionStatus status;
- int scopeDepth = 0;
- for (cmListFileFunction const& func : this->Functions) {
- // keep track of scope depth
- if (func.Name.Lower == "if") {
- scopeDepth++;
- }
- if (func.Name.Lower == "endif") {
- scopeDepth--;
+ this->IsBlocking = this->HasRun;
+ this->HasRun = true;
+ this->ElseSeen = true;
+
+ // if trace is enabled, print a (trivially) evaluated "else"
+ // statement
+ if (!this->IsBlocking && mf.GetCMakeInstance()->GetTrace()) {
+ mf.PrintCommandTrace(func);
+ }
+ } else if (scopeDepth == 0 && func.Name.Lower == "elseif") {
+ if (this->ElseSeen) {
+ cmListFileBacktrace bt = mf.GetBacktrace(func);
+ mf.GetCMakeInstance()->IssueMessage(
+ MessageType::FATAL_ERROR,
+ "An ELSEIF command was found after an ELSE command.", bt);
+ cmSystemTools::SetFatalErrorOccured();
+ return true;
+ }
+
+ if (this->HasRun) {
+ this->IsBlocking = true;
+ } else {
+ // if trace is enabled, print the evaluated "elseif" statement
+ if (mf.GetCMakeInstance()->GetTrace()) {
+ mf.PrintCommandTrace(func);
}
- // watch for our state change
- if (scopeDepth == 0 && func.Name.Lower == "else") {
-
- if (this->ElseSeen) {
- cmListFileBacktrace bt = mf.GetBacktrace(func);
- mf.GetCMakeInstance()->IssueMessage(
- MessageType::FATAL_ERROR,
- "A duplicate ELSE command was found inside an IF block.", bt);
- cmSystemTools::SetFatalErrorOccured();
- return true;
- }
- this->IsBlocking = this->HasRun;
- this->HasRun = true;
- this->ElseSeen = true;
+ std::string errorString;
- // if trace is enabled, print a (trivially) evaluated "else"
- // statement
- if (!this->IsBlocking && mf.GetCMakeInstance()->GetTrace()) {
- mf.PrintCommandTrace(func);
- }
- } else if (scopeDepth == 0 && func.Name.Lower == "elseif") {
- if (this->ElseSeen) {
- cmListFileBacktrace bt = mf.GetBacktrace(func);
- mf.GetCMakeInstance()->IssueMessage(
- MessageType::FATAL_ERROR,
- "An ELSEIF command was found after an ELSE command.", bt);
+ std::vector<cmExpandedCommandArgument> expandedArguments;
+ mf.ExpandArguments(func.Arguments, expandedArguments);
+
+ MessageType messType;
+
+ cmListFileContext conditionContext =
+ cmListFileContext::FromCommandContext(
+ func, this->GetStartingContext().FilePath);
+
+ cmConditionEvaluator conditionEvaluator(mf, conditionContext,
+ mf.GetBacktrace(func));
+
+ bool isTrue =
+ conditionEvaluator.IsTrue(expandedArguments, errorString, messType);
+
+ if (!errorString.empty()) {
+ std::string err =
+ cmStrCat(cmIfCommandError(expandedArguments), errorString);
+ cmListFileBacktrace bt = mf.GetBacktrace(func);
+ mf.GetCMakeInstance()->IssueMessage(messType, err, bt);
+ if (messType == MessageType::FATAL_ERROR) {
cmSystemTools::SetFatalErrorOccured();
return true;
}
-
- if (this->HasRun) {
- this->IsBlocking = true;
- } else {
- // if trace is enabled, print the evaluated "elseif" statement
- if (mf.GetCMakeInstance()->GetTrace()) {
- mf.PrintCommandTrace(func);
- }
-
- std::string errorString;
-
- std::vector<cmExpandedCommandArgument> expandedArguments;
- mf.ExpandArguments(func.Arguments, expandedArguments);
-
- MessageType messType;
-
- cmListFileContext conditionContext =
- cmListFileContext::FromCommandContext(
- func, this->GetStartingContext().FilePath);
-
- cmConditionEvaluator conditionEvaluator(mf, conditionContext,
- mf.GetBacktrace(func));
-
- bool isTrue = conditionEvaluator.IsTrue(expandedArguments,
- errorString, messType);
-
- if (!errorString.empty()) {
- std::string err = cmIfCommandError(expandedArguments);
- err += errorString;
- cmListFileBacktrace bt = mf.GetBacktrace(func);
- mf.GetCMakeInstance()->IssueMessage(messType, err, bt);
- if (messType == MessageType::FATAL_ERROR) {
- cmSystemTools::SetFatalErrorOccured();
- return true;
- }
- }
-
- if (isTrue) {
- this->IsBlocking = false;
- this->HasRun = true;
- }
- }
}
- // should we execute?
- else if (!this->IsBlocking) {
- status.Clear();
- mf.ExecuteCommand(func, status);
- if (status.GetReturnInvoked()) {
- inStatus.SetReturnInvoked();
- return true;
- }
- if (status.GetBreakInvoked()) {
- inStatus.SetBreakInvoked();
- return true;
- }
- if (status.GetContinueInvoked()) {
- inStatus.SetContinueInvoked();
- return true;
- }
+ if (isTrue) {
+ this->IsBlocking = false;
+ this->HasRun = true;
}
}
- return true;
}
- }
- // record the command
- this->Functions.push_back(lff);
-
- // always return true
- return true;
-}
-
-//=========================================================================
-bool cmIfFunctionBlocker::ShouldRemove(const cmListFileFunction& lff,
- cmMakefile&)
-{
- if (lff.Name.Lower == "endif") {
- // if the endif has arguments, then make sure
- // they match the arguments of the matching if
- if (lff.Arguments.empty() || lff.Arguments == this->Args) {
- return true;
+ // should we execute?
+ else if (!this->IsBlocking) {
+ cmExecutionStatus status(mf);
+ mf.ExecuteCommand(func, status);
+ if (status.GetReturnInvoked()) {
+ inStatus.SetReturnInvoked();
+ return true;
+ }
+ if (status.GetBreakInvoked()) {
+ inStatus.SetBreakInvoked();
+ return true;
+ }
+ if (status.GetContinueInvoked()) {
+ inStatus.SetContinueInvoked();
+ return true;
+ }
}
}
-
- return false;
+ return true;
}
//=========================================================================
-bool cmIfCommand::InvokeInitialPass(
- const std::vector<cmListFileArgument>& args, cmExecutionStatus&)
+bool cmIfCommand(std::vector<cmListFileArgument> const& args,
+ cmExecutionStatus& inStatus)
{
+ cmMakefile& makefile = inStatus.GetMakefile();
std::string errorString;
std::vector<cmExpandedCommandArgument> expandedArguments;
- this->Makefile->ExpandArguments(args, expandedArguments);
+ makefile.ExpandArguments(args, expandedArguments);
MessageType status;
cmConditionEvaluator conditionEvaluator(
- *(this->Makefile), this->Makefile->GetExecutionContext(),
- this->Makefile->GetBacktrace());
+ makefile, makefile.GetExecutionContext(), makefile.GetBacktrace());
bool isTrue =
conditionEvaluator.IsTrue(expandedArguments, errorString, status);
if (!errorString.empty()) {
- std::string err = "if " + cmIfCommandError(expandedArguments);
- err += errorString;
+ std::string err =
+ cmStrCat("if ", cmIfCommandError(expandedArguments), errorString);
if (status == MessageType::FATAL_ERROR) {
- this->Makefile->IssueMessage(MessageType::FATAL_ERROR, err);
+ makefile.IssueMessage(MessageType::FATAL_ERROR, err);
cmSystemTools::SetFatalErrorOccured();
return true;
}
- this->Makefile->IssueMessage(status, err);
+ makefile.IssueMessage(status, err);
}
- cmIfFunctionBlocker* f = new cmIfFunctionBlocker();
- // if is isn't true block the commands
- f->ScopeDepth = 1;
- f->IsBlocking = !isTrue;
- if (isTrue) {
- f->HasRun = true;
+ {
+ auto fb = cm::make_unique<cmIfFunctionBlocker>();
+ // if is isn't true block the commands
+ fb->IsBlocking = !isTrue;
+ if (isTrue) {
+ fb->HasRun = true;
+ }
+ fb->Args = args;
+ makefile.AddFunctionBlocker(std::move(fb));
}
- f->Args = args;
- this->Makefile->AddFunctionBlocker(f);
return true;
}
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