a335f2aeed
This replaces all typedefs that define types and not functions by the
equivalent "using" declaration.
This was done mostly automatically using this command:
ag -l '\btypedef\b' src test | xargs -L1 \
perl -i -p0e 's/typedef ([^*;{}]+) (\w+);/using \2 = \1;/sg'
Patchset 2 then adds some manual changes for typedefs for pointer types,
where the regular expression did not match.
R=mstarzinger@chromium.org
TBR=yangguo@chromium.org, jarin@chromium.org
Bug: v8:9183
Change-Id: I6f6ee28d1793b7ac34a58f980b94babc21874b78
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631409
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61849}
124 lines
4.4 KiB
C++
124 lines
4.4 KiB
C++
// Copyright 2014 the V8 project authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#ifndef V8_COMPILER_C_SIGNATURE_H_
|
|
#define V8_COMPILER_C_SIGNATURE_H_
|
|
|
|
#include "src/codegen/machine-type.h"
|
|
|
|
namespace v8 {
|
|
namespace internal {
|
|
namespace compiler {
|
|
|
|
#define FOREACH_CTYPE_MACHINE_TYPE_MAPPING(V) \
|
|
V(void, MachineType::None()) \
|
|
V(bool, MachineType::Uint8()) \
|
|
V(int8_t, MachineType::Int8()) \
|
|
V(uint8_t, MachineType::Uint8()) \
|
|
V(int16_t, MachineType::Int16()) \
|
|
V(uint16_t, MachineType::Uint16()) \
|
|
V(int32_t, MachineType::Int32()) \
|
|
V(uint32_t, MachineType::Uint32()) \
|
|
V(int64_t, MachineType::Int64()) \
|
|
V(uint64_t, MachineType::Uint64()) \
|
|
V(float, MachineType::Float32()) \
|
|
V(double, MachineType::Float64()) \
|
|
V(void*, MachineType::Pointer()) \
|
|
V(int*, MachineType::Pointer())
|
|
|
|
template <typename T>
|
|
inline constexpr MachineType MachineTypeForC() {
|
|
static_assert(std::is_convertible<T, Object>::value,
|
|
"all non-specialized types must be convertible to Object");
|
|
return MachineType::AnyTagged();
|
|
}
|
|
|
|
#define DECLARE_TEMPLATE_SPECIALIZATION(ctype, mtype) \
|
|
template <> \
|
|
inline MachineType constexpr MachineTypeForC<ctype>() { \
|
|
return mtype; \
|
|
}
|
|
FOREACH_CTYPE_MACHINE_TYPE_MAPPING(DECLARE_TEMPLATE_SPECIALIZATION)
|
|
#undef DECLARE_TEMPLATE_SPECIALIZATION
|
|
|
|
// Helper for building machine signatures from C types.
|
|
class CSignature : public MachineSignature {
|
|
protected:
|
|
CSignature(size_t return_count, size_t parameter_count, MachineType* reps)
|
|
: MachineSignature(return_count, parameter_count, reps) {}
|
|
|
|
public:
|
|
template <typename... Params>
|
|
static void VerifyParams(MachineSignature* sig) {
|
|
// Verifies the C signature against the machine types.
|
|
std::array<MachineType, sizeof...(Params)> params{
|
|
{MachineTypeForC<Params>()...}};
|
|
for (size_t p = 0; p < params.size(); ++p) {
|
|
CHECK_EQ(sig->GetParam(p), params[p]);
|
|
}
|
|
}
|
|
|
|
static CSignature* FromMachine(Zone* zone, MachineSignature* msig) {
|
|
return reinterpret_cast<CSignature*>(msig);
|
|
}
|
|
|
|
template <typename... ParamMachineTypes>
|
|
static CSignature* New(Zone* zone, MachineType ret,
|
|
ParamMachineTypes... params) {
|
|
constexpr size_t param_count = sizeof...(params);
|
|
std::array<MachineType, param_count> param_arr{{params...}};
|
|
const size_t buffer_size =
|
|
param_count + (ret == MachineType::None() ? 0 : 1);
|
|
MachineType* buffer = zone->NewArray<MachineType>(buffer_size);
|
|
size_t pos = 0;
|
|
size_t return_count = 0;
|
|
if (ret != MachineType::None()) {
|
|
buffer[pos++] = ret;
|
|
return_count++;
|
|
}
|
|
for (MachineType p : param_arr) {
|
|
// Check that there are no MachineType::None()'s in the parameters.
|
|
CHECK_NE(MachineType::None(), p);
|
|
buffer[pos++] = p;
|
|
}
|
|
DCHECK_EQ(buffer_size, pos);
|
|
return new (zone) CSignature(return_count, param_count, buffer);
|
|
}
|
|
};
|
|
|
|
// Helper classes for instantiating Signature objects to be callable from C.
|
|
template <typename Ret, typename... Params>
|
|
class CSignatureOf : public CSignature {
|
|
public:
|
|
CSignatureOf() : CSignature(kReturnCount, kParamCount, storage_) {
|
|
constexpr std::array<MachineType, kParamCount> param_types{
|
|
MachineTypeForC<Params>()...};
|
|
if (kReturnCount == 1) storage_[0] = MachineTypeForC<Ret>();
|
|
static_assert(
|
|
std::is_same<decltype(*reps_), decltype(*param_types.data())>::value,
|
|
"type mismatch, cannot memcpy");
|
|
memcpy(storage_ + kReturnCount, param_types.data(),
|
|
sizeof(*storage_) * kParamCount);
|
|
}
|
|
|
|
private:
|
|
static constexpr size_t kReturnCount =
|
|
MachineTypeForC<Ret>() == MachineType::None() ? 0 : 1;
|
|
static constexpr size_t kParamCount = sizeof...(Params);
|
|
|
|
MachineType storage_[kReturnCount + kParamCount];
|
|
};
|
|
|
|
using CSignature_i_ii = CSignatureOf<int32_t, int32_t, int32_t>;
|
|
using CSignature_u_uu = CSignatureOf<uint32_t, uint32_t, uint32_t>;
|
|
using CSignature_f_ff = CSignatureOf<float, float, float>;
|
|
using CSignature_d_dd = CSignatureOf<double, double, double>;
|
|
using CSignature_o_oo = CSignatureOf<Object, Object, Object>;
|
|
|
|
} // namespace compiler
|
|
} // namespace internal
|
|
} // namespace v8
|
|
|
|
#endif // V8_COMPILER_C_SIGNATURE_H_
|