147 lines
1.9 KiB
C++
147 lines
1.9 KiB
C++
#include "stdafx.h"
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// Input: tos-4 Index variable
|
|
//
|
|
// tos-3 Initial value
|
|
//
|
|
// tos-2 Final value
|
|
//
|
|
// tos-1 Statement
|
|
//
|
|
// Output: Result on stack
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#include "defs.h"
|
|
|
|
#define A p1
|
|
#define J p2
|
|
#define K p3
|
|
#define B p4
|
|
|
|
static int level;
|
|
static jmp_buf break_jmp_buf;
|
|
|
|
void
|
|
for_function(void)
|
|
{
|
|
int i, j, k;
|
|
jmp_buf save_jmp_buf;
|
|
volatile int save_tos, mark;
|
|
U ** volatile save_frame;
|
|
|
|
memcpy(save_jmp_buf, break_jmp_buf, sizeof break_jmp_buf);
|
|
|
|
if (setjmp(break_jmp_buf)) {
|
|
memcpy(break_jmp_buf, save_jmp_buf, sizeof save_jmp_buf);
|
|
stack[save_tos] = pop();
|
|
tos = save_tos + 1;
|
|
frame = save_frame;
|
|
restore();
|
|
restore_symbols(mark);
|
|
level--;
|
|
return;
|
|
}
|
|
|
|
level++;
|
|
|
|
save();
|
|
|
|
B = pop();
|
|
K = pop();
|
|
J = pop();
|
|
A = pop();
|
|
|
|
save_tos = tos;
|
|
save_frame = frame;
|
|
|
|
if (A->k != SYM)
|
|
stop("variable expected in 1st arg of \"for\" function");
|
|
push(A);
|
|
mark = save_symbols(1);
|
|
|
|
push(J);
|
|
eval();
|
|
j = pop_integer();
|
|
if (j == (int) 0x80000000)
|
|
stop("integer value expected in 2nd arg of \"for\" function");
|
|
|
|
push(K);
|
|
eval();
|
|
k = pop_integer();
|
|
if (k == (int) 0x80000000)
|
|
stop("integer value expected in 3rd arg of \"for\" function");
|
|
|
|
for (i = j; i <= k; i++) {
|
|
|
|
push_integer(i);
|
|
|
|
A->u.sym.binding = pop();
|
|
A->u.sym.binding2 = nil;
|
|
|
|
push(B);
|
|
eval();
|
|
pop();
|
|
}
|
|
|
|
push(nil);
|
|
|
|
restore_symbols(mark);
|
|
|
|
restore();
|
|
|
|
level--;
|
|
}
|
|
|
|
void
|
|
break_function(void)
|
|
{
|
|
if (level == 0)
|
|
stop("break without for");
|
|
longjmp(break_jmp_buf, 1);
|
|
}
|
|
|
|
static char *s[] = {
|
|
|
|
"a=123",
|
|
"",
|
|
|
|
"b=for(a,1,10,c=a)",
|
|
"",
|
|
|
|
"a",
|
|
"123",
|
|
|
|
"b",
|
|
"nil",
|
|
|
|
"c",
|
|
"10",
|
|
|
|
"b=for(a,1,10,test(a==10,break(456)))",
|
|
"",
|
|
|
|
"a",
|
|
"123",
|
|
|
|
"b",
|
|
"456",
|
|
|
|
"a=quote(a)",
|
|
"",
|
|
|
|
"b=quote(b)",
|
|
"",
|
|
|
|
"c=quote(c)",
|
|
"",
|
|
};
|
|
|
|
void
|
|
test_for(void)
|
|
{
|
|
test(__FILE__, s, sizeof s / sizeof (char *));
|
|
}
|