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__builtin_inline!

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Add an experimental `__builtin_inline!(c_expression)` special intrinsic
which run a C code snippet.
In `c_expression`, you can access the following variables:
  * ec (rb_execution_context_t *)
  * self (const VALUE)
  * local variables (const VALUE)
Not that you can read these variables, but you can not write them.
You need to return from this expression and return value will be a
result of __builtin_inline!().

Examples:
  `def foo(x) __builtin_inline!('return rb_p(x);'); end` calls `p(x)`.
  `def double(x) __builtin_inline!('return INT2NUM(NUM2INT(x) * 2);')`
  returns x*2.
This commit is contained in:
Koichi Sasada 2019-11-11 16:38:46 +09:00
parent 05a5c69e1a
commit 3141642380
5 changed files with 93 additions and 10 deletions
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13
builtin.h
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@ -43,6 +43,19 @@ static inline void rb_builtin_function_check_arity13(VALUE (*f)(rb_execution_con
static inline void rb_builtin_function_check_arity14(VALUE (*f)(rb_execution_context_t *ec, VALUE self, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)){}
static inline void rb_builtin_function_check_arity15(VALUE (*f)(rb_execution_context_t *ec, VALUE self, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)){}
VALUE rb_vm_lvar_exposed(rb_execution_context_t *ec, int index);
// inline
inline VALUE
rb_vm_lvar(rb_execution_context_t *ec, int index)
{
#if VM_CORE_H_EC_DEFINED
return ec->cfp->ep[index];
#else
return rb_vm_lvar_exposed(ec, index);
#endif
}
// dump/load
struct builtin_binary {