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Genex: Add generator expressions $<DEVICE_LINK> and $<HOST_LINK>

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These generator expressions can only be used in link options properties.
These expressions return the arguments respectively for device and host link
step, otherwise return an empty string.
This commit is contained in:
Marc Chevrier
2020-04-05 17:21:57 +02:00
parent 38332fc4fa
commit 3fdae5acaa
94 changed files with 572 additions and 11 deletions
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68
Source/cmGeneratorExpressionNode.cxx
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@@ -15,6 +15,7 @@
#include <cm/iterator>
#include <cm/string_view>
#include <cm/vector>
#include <cmext/algorithm>
#include "cmsys/RegularExpression.hxx"
@@ -1187,6 +1188,70 @@ static const struct LinkLanguageAndIdNode : public cmGeneratorExpressionNode
}
} linkLanguageAndIdNode;
static const struct HostLinkNode : public cmGeneratorExpressionNode
{
HostLinkNode() {} // NOLINT(modernize-use-equals-default)
int NumExpectedParameters() const override { return ZeroOrMoreParameters; }
std::string Evaluate(
const std::vector<std::string>& parameters,
cmGeneratorExpressionContext* context,
const GeneratorExpressionContent* content,
cmGeneratorExpressionDAGChecker* dagChecker) const override
{
if (!context->HeadTarget || !dagChecker ||
!dagChecker->EvaluatingLinkOptionsExpression()) {
reportError(context, content->GetOriginalExpression(),
"$<HOST_LINK:...> may only be used with binary targets "
"to specify link options.");
return std::string();
}
return context->HeadTarget->IsDeviceLink() ? std::string()
: cmJoin(parameters, ";");
}
} hostLinkNode;
static const struct DeviceLinkNode : public cmGeneratorExpressionNode
{
DeviceLinkNode() {} // NOLINT(modernize-use-equals-default)
int NumExpectedParameters() const override { return ZeroOrMoreParameters; }
std::string Evaluate(
const std::vector<std::string>& parameters,
cmGeneratorExpressionContext* context,
const GeneratorExpressionContent* content,
cmGeneratorExpressionDAGChecker* dagChecker) const override
{
if (!context->HeadTarget || !dagChecker ||
!dagChecker->EvaluatingLinkOptionsExpression()) {
reportError(context, content->GetOriginalExpression(),
"$<DEVICE_LINK:...> may only be used with binary targets "
"to specify link options.");
return std::string();
}
if (context->HeadTarget->IsDeviceLink()) {
std::vector<std::string> list;
cmExpandLists(parameters.begin(), parameters.end(), list);
const auto DL_BEGIN = "<DEVICE_LINK>"_s;
const auto DL_END = "</DEVICE_LINK>"_s;
cm::erase_if(list, [&](const std::string& item) {
return item == DL_BEGIN || item == DL_END;
});
list.insert(list.begin(), static_cast<std::string>(DL_BEGIN));
list.push_back(static_cast<std::string>(DL_END));
return cmJoin(list, ";");
}
return std::string();
}
} deviceLinkNode;
std::string getLinkedTargetsContent(
cmGeneratorTarget const* target, std::string const& prop,
cmGeneratorExpressionContext* context,
@@ -1304,6 +1369,7 @@ static const struct TargetPropertyNode : public cmGeneratorExpressionNode
context, content->GetOriginalExpression(),
"$<TARGET_PROPERTY:prop> may only be used with binary targets. "
"It may not be used with add_custom_command or add_custom_target. "
" "
"Specify the target to read a property from using the "
"$<TARGET_PROPERTY:tgt,prop> signature instead.");
return std::string();
@@ -2464,6 +2530,8 @@ const cmGeneratorExpressionNode* cmGeneratorExpressionNode::GetNode(
{ "COMPILE_LANGUAGE", &languageNode },
{ "LINK_LANG_AND_ID", &linkLanguageAndIdNode },
{ "LINK_LANGUAGE", &linkLanguageNode },
{ "HOST_LINK", &hostLinkNode },
{ "DEVICE_LINK", &deviceLinkNode },
{ "SHELL_PATH", &shellPathNode }
};