fork download
copy 
  1. #include <functional>
  2. #include <cassert>
  3.  
  4. namespace Wide {
  5.     namespace Codegen {
  6.         class Statement { public: virtual ~Statement() {} };
  7.         class Expression : public Statement {};
  8.         class IfStatement  : public Statement {};
  9.         class Generator {
  10.         public:
  11.             virtual IfStatement* CreateIfStatement(Expression* expr, Statement* t, Statement* f) = 0;
  12.             virtual IfStatement* CreateIfStatement(std::function<Expression*()>, Statement*, Statement*) = 0;
  13.         };
  14.     }
  15.     namespace LLVMCodegen {
  16.         class Statement { public: virtual ~Statement() {} };
  17.         struct Expression : Statement {};
  18.  
  19.         class IfStatement : public Statement, public Codegen::IfStatement {
  20.         public:
  21.             IfStatement(std::function<LLVMCodegen::Expression*()> cond, LLVMCodegen::Statement* tbr, LLVMCodegen::Statement* fbr) {}
  22.         };
  23.         Expression* AssertExpression(Wide::Codegen::Expression* e) {
  24.             return dynamic_cast<Wide::LLVMCodegen::Expression*>(e);
  25.         }
  26.         Statement* AssertStatement(Wide::Codegen::Statement* e) {
  27.             return dynamic_cast<Wide::LLVMCodegen::Statement*>(e);
  28.         }
  29.         class Generator : public Codegen::Generator {
  30.         public:            
  31.             IfStatement* CreateIfStatement(Codegen::Expression* expr, Codegen::Statement* t, Codegen::Statement* f) {
  32.                 return CreateIfStatement([=] { return expr; }, t, f);
  33.             }
  34.             IfStatement* CreateIfStatement(std::function<Codegen::Expression*()> cond, Codegen::Statement* tr, Codegen::Statement* fls) {
  35.                 return new IfStatement([=] { return AssertExpression(cond()); }, AssertStatement(tr), fls ? AssertStatement(fls) : nullptr);
  36.             }
  37.         };
  38.     }
  39. }
  40.  
  41. int main() {
  42.     Wide::LLVMCodegen::Generator g;
  43. }
Success #stdin #stdout 0s 3336KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Standard output is empty
https://ideone.com/hasoQp
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!