diff options
author | Koichi Sasada <ko1@atdot.net> | 2019-11-11 16:38:46 +0900 |
---|---|---|
committer | Koichi Sasada <ko1@atdot.net> | 2019-11-11 16:47:50 +0900 |
commit | 31416423809f64d4b5ea6b9651cced3179cc5ced (patch) | |
tree | 5cf4b7d9b19019d5f665ca0b0c3902f8100cd597 /builtin.c | |
parent | 05a5c69e1a06a3853afb3744fa9925910b78904f (diff) |
__builtin_inline!
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.
Diffstat (limited to 'builtin.c')
-rw-r--r-- | builtin.c | 15 |
1 files changed, 13 insertions, 2 deletions
@@ -25,9 +25,12 @@ rb_load_with_builtin_functions(const char *feature_name, const struct rb_builtin const unsigned char *bin = builtin_lookup(feature_name, &size); // load binary - GET_VM()->builtin_function_table = table; + rb_vm_t *vm = GET_VM(); + if (vm->builtin_function_table != NULL) rb_bug("vm->builtin_function_table should be NULL."); + vm->builtin_function_table = table; + vm->builtin_inline_index = 0; const rb_iseq_t *iseq = rb_iseq_ibf_load_bytes((const char *)bin, size); - GET_VM()->builtin_function_table = NULL; + vm->builtin_function_table = NULL; // exec rb_iseq_eval(iseq); @@ -38,3 +41,11 @@ Init_builtin(void) { // } + +// inline +VALUE +rb_vm_lvar_exposed(rb_execution_context_t *ec, int index) +{ + const rb_control_frame_t *cfp = ec->cfp; + return cfp->ep[index]; +} |