clang 19.0.0git
Function.cpp
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1//===--- Function.h - Bytecode function for the VM --------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "Function.h"
10#include "Opcode.h"
11#include "Program.h"
12#include "clang/AST/Decl.h"
13#include "clang/AST/DeclCXX.h"
15
16using namespace clang;
17using namespace clang::interp;
18
19Function::Function(Program &P, const FunctionDecl *F, unsigned ArgSize,
21 llvm::DenseMap<unsigned, ParamDescriptor> &&Params,
23 bool HasThisPointer, bool HasRVO, bool UnevaluatedBuiltin)
24 : P(P), Loc(F->getBeginLoc()), F(F), ArgSize(ArgSize),
25 ParamTypes(std::move(ParamTypes)), Params(std::move(Params)),
26 ParamOffsets(std::move(ParamOffsets)), HasThisPointer(HasThisPointer),
27 HasRVO(HasRVO), Variadic(F->isVariadic()),
28 IsUnevaluatedBuiltin(UnevaluatedBuiltin) {}
29
30Function::ParamDescriptor Function::getParamDescriptor(unsigned Offset) const {
31 auto It = Params.find(Offset);
32 assert(It != Params.end() && "Invalid parameter offset");
33 return It->second;
34}
35
36SourceInfo Function::getSource(CodePtr PC) const {
37 assert(PC >= getCodeBegin() && "PC does not belong to this function");
38 assert(PC <= getCodeEnd() && "PC Does not belong to this function");
39 assert(hasBody() && "Function has no body");
40 unsigned Offset = PC - getCodeBegin();
41 using Elem = std::pair<unsigned, SourceInfo>;
42 auto It = llvm::lower_bound(SrcMap, Elem{Offset, {}}, llvm::less_first());
43 assert(It != SrcMap.end());
44 return It->second;
45}
46
47bool Function::isVirtual() const {
48 if (const auto *M = dyn_cast<CXXMethodDecl>(F))
49 return M->isVirtual();
50 return false;
51}
StringRef P
Defines enum values for all the target-independent builtin functions.
Defines the C++ Decl subclasses, other than those for templates (found in DeclTemplate....
SourceLocation Loc
Definition: SemaObjC.cpp:755
Represents a function declaration or definition.
Definition: Decl.h:1971
Pointer into the code segment.
Definition: Source.h:30
std::pair< PrimType, Descriptor * > ParamDescriptor
Definition: Function.h:79
The program contains and links the bytecode for all functions.
Definition: Program.h:39
Describes the statement/declaration an opcode was generated from.
Definition: Source.h:72
The JSON file list parser is used to communicate input to InstallAPI.
Definition: Format.h:5428