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py: Simplify bytecode prelude when encoding closed over variables.

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This commit is contained in:
Damien George
2015-04-07 00:08:17 +01:00
parent 78772ada0d
commit c9aa1883ed
5 changed files with 8 additions and 27 deletions
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11
py/emitbc.c
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@@ -322,21 +322,14 @@ void mp_emit_bc_start_pass(emit_t *emit, pass_kind_t pass, scope_t *scope) {
}
// bytecode prelude: initialise closed over variables
int num_cell = 0;
for (int i = 0; i < scope->id_info_len; i++) {
id_info_t *id = &scope->id_info[i];
if (id->kind == ID_INFO_KIND_CELL) {
num_cell += 1;
}
}
assert(num_cell <= 255);
emit_write_bytecode_byte(emit, num_cell); // write number of locals that are cells
for (int i = 0; i < scope->id_info_len; i++) {
id_info_t *id = &scope->id_info[i];
if (id->kind == ID_INFO_KIND_CELL) {
assert(id->local_num < 255);
emit_write_bytecode_byte(emit, id->local_num); // write the local which should be converted to a cell
}
}
emit_write_bytecode_byte(emit, 255); // end of list sentinel
}
void mp_emit_bc_end_pass(emit_t *emit) {