static void
parse_error(struct vcc *tl)
{
vcc_NextToken(tl);
Fb(tl, 1, "VRT_error(sp,\n");
if (tl->t->tok == '(') {
vcc_NextToken(tl);
vcc_Expr(tl, INT);
if (tl->t->tok == ',') {
Fb(tl, 1, ",\n");
vcc_NextToken(tl);
vcc_Expr(tl, STRING);
} else
Fb(tl, 1, ", 0\n");
SkipToken(tl, ')');
} else {
vcc_Expr(tl, INT);
if (tl->t->tok != ';') {
Fb(tl, 1, ",\n");
vcc_Expr(tl, STRING);
} else
Fb(tl, 1, ", 0\n");
}
Fb(tl, 1, ");\n");
Fb(tl, 1, "VRT_done(sp, VCL_RET_ERROR);\n");
}
static void
parse_set(struct vcc *tl)
{
const struct var *vp;
const struct arith *ap;
enum var_type fmt;
vcc_NextToken(tl);
ExpectErr(tl, ID);
vp = vcc_FindVar(tl, tl->t, 1, "cannot be set");
ERRCHK(tl);
assert(vp != NULL);
Fb(tl, 1, "%s", vp->lname);
vcc_NextToken(tl);
fmt = vp->fmt;
for (ap = arith; ap->type != VOID; ap++) {
if (ap->type != fmt)
continue;
if (ap->oper != tl->t->tok)
continue;
if (ap->oper != '=')
Fb(tl, 0, "%s %c ", vp->rname, *tl->t->b);
vcc_NextToken(tl);
fmt = ap->want;
break;
}
if (ap->type == VOID)
SkipToken(tl, ap->oper);
if (fmt == STRING) {
vcc_Expr(tl, STRING_LIST);
} else {
vcc_Expr(tl, fmt);
}
Fb(tl, 1, ");\n");
}
static void
parse_set(struct vcc *tl)
{
const struct symbol *sym;
const struct arith *ap;
vcc_type_t fmt;
vcc_NextToken(tl);
ExpectErr(tl, ID);
sym = vcc_FindVar(tl, tl->t, 1, "cannot be set");
ERRCHK(tl);
assert(sym != NULL);
if (vcc_IdIs(tl->t, "bereq.body")) {
VSB_printf(tl->sb, "bereq.body cannot be set.\n");
vcc_ErrWhere(tl, tl->t);
return;
}
Fb(tl, 1, "%s\n", sym->lname);
tl->indent += INDENT;
vcc_NextToken(tl);
fmt = sym->fmt;
for (ap = arith; ap->type != VOID; ap++) {
if (ap->type != fmt)
continue;
if (ap->oper != tl->t->tok)
continue;
if (ap->oper != '=')
Fb(tl, 1, "%s %c ", sym->rname, *tl->t->b);
vcc_NextToken(tl);
fmt = ap->want;
break;
}
if (ap->type == VOID)
SkipToken(tl, ap->oper);
if (fmt == HEADER) {
vcc_Expr(tl, STRING_LIST);
} else if (fmt == STRING) {
vcc_Expr(tl, STRING_LIST);
} else if (fmt == BODY) {
vcc_Expr(tl, STRING_LIST);
} else {
vcc_Expr(tl, fmt);
}
tl->indent -= INDENT;
Fb(tl, 1, ");\n");
}
static void
parse_synthetic(struct vcc *tl)
{
vcc_NextToken(tl);
Fb(tl, 1, "VRT_synth_page(sp, 0, ");
vcc_Expr(tl, STRING_LIST);
ERRCHK(tl);
Fb(tl, 0, ");\n");
}
static void
parse_panic(struct vcc *tl)
{
vcc_NextToken(tl);
Fb(tl, 1, "VRT_panic(sp, ");
vcc_Expr(tl, STRING);
ERRCHK(tl);
Fb(tl, 0, ", vrt_magic_string_end);\n");
}
static void
vcc_Conditional(struct vcc *tl)
{
SkipToken(tl, '(');
Fb(tl, 0, "(\n");
L(tl, vcc_Expr(tl, BOOL));
ERRCHK(tl);
Fb(tl, 1, ")\n");
SkipToken(tl, ')');
}
static void
parse_hash_data(struct vcc *tl)
{
vcc_NextToken(tl);
SkipToken(tl, '(');
Fb(tl, 1, "VRT_hashdata(ctx, ");
vcc_Expr(tl, STRING_LIST);
ERRCHK(tl);
Fb(tl, 0, ");\n");
SkipToken(tl, ')');
}
static void
parse_return_synth(struct vcc *tl)
{
ExpectErr(tl, '(');
vcc_NextToken(tl);
Fb(tl, 1, "VRT_synth(ctx,\n");
tl->indent += INDENT;
vcc_Expr(tl, INT);
ERRCHK(tl);
Fb(tl, 1, ",\n");
if (tl->t->tok == ',') {
vcc_NextToken(tl);
vcc_Expr(tl, STRING);
ERRCHK(tl);
} else {
Fb(tl, 1, "(const char*)0\n");
}
tl->indent -= INDENT;
ExpectErr(tl, ')');
vcc_NextToken(tl);
Fb(tl, 1, ");\n");
}
static void
parse_ban_url(struct vcc *tl)
{
vcc_NextToken(tl);
ExpectErr(tl, '(');
vcc_NextToken(tl);
Fb(tl, 1, "VRT_ban(sp, \"req.url\", \"~\", ");
vcc_Expr(tl, STRING);
ERRCHK(tl);
ExpectErr(tl, ')');
vcc_NextToken(tl);
Fb(tl, 0, ", 0);\n");
}
static void
parse_return_pass(struct vcc *tl)
{
ExpectErr(tl, '(');
vcc_NextToken(tl);
Fb(tl, 1, "VRT_hit_for_pass(ctx,\n");
tl->indent += INDENT;
vcc_Expr(tl, DURATION);
ERRCHK(tl);
ExpectErr(tl, ')');
vcc_NextToken(tl);
Fb(tl, 1, ");\n");
tl->indent -= INDENT;
}
static void
parse_ban(struct vcc *tl)
{
vcc_NextToken(tl);
ExpectErr(tl, '(');
vcc_NextToken(tl);
Fb(tl, 1, "VRT_ban_string(sp, ");
vcc_Expr(tl, STRING);
ERRCHK(tl);
Fb(tl, 0, ");\n");
ExpectErr(tl, ')');
vcc_NextToken(tl);
}
static void
parse_synthetic(struct vcc *tl)
{
vcc_NextToken(tl);
ExpectErr(tl, '(');
ERRCHK(tl);
vcc_NextToken(tl);
Fb(tl, 1, "VRT_synth_page(ctx, ");
vcc_Expr(tl, STRING_LIST);
ERRCHK(tl);
Fb(tl, 1, ");\n");
ExpectErr(tl, ')');
vcc_NextToken(tl);
ERRCHK(tl);
}
static void
parse_ban(struct vcc *tl)
{
vcc_NextToken(tl);
ExpectErr(tl, '(');
vcc_NextToken(tl);
Fb(tl, 1, "VRT_ban_string(ctx, \n");
tl->indent += INDENT;
vcc_Expr(tl, STRING);
tl->indent -= INDENT;
ERRCHK(tl);
Fb(tl, 1, ");\n");
ExpectErr(tl, ')');
vcc_NextToken(tl);
}
static void
parse_return(struct vcc *tl)
{
int retval = 0;
vcc_NextToken(tl);
ExpectErr(tl, '(');
vcc_NextToken(tl);
ExpectErr(tl, ID);
/* 'error' gets special handling, to allow optional status/response */
if (vcc_IdIs(tl->t, "synth")) {
vcc_NextToken(tl);
if (tl->t->tok == ')') {
VSB_printf(tl->sb,
"Syntax has changed, use:\n"
"\treturn(synth(999));\n"
"or\n"
"\treturn(synth(999, \"Response text\"));\n");
vcc_ErrWhere(tl, tl->t);
return;
}
ExpectErr(tl, '(');
vcc_NextToken(tl);
Fb(tl, 1, "VRT_error(ctx,\n");
tl->indent += INDENT;
vcc_Expr(tl, INT);
ERRCHK(tl);
Fb(tl, 1, ",\n");
if (tl->t->tok == ',') {
vcc_NextToken(tl);
vcc_Expr(tl, STRING);
ERRCHK(tl);
} else {
Fb(tl, 1, "(const char*)0\n");
}
tl->indent -= INDENT;
ExpectErr(tl, ')');
vcc_NextToken(tl);
Fb(tl, 1, ");\n");
Fb(tl, 1, "VRT_handling(ctx, VCL_RET_SYNTH);\n");
Fb(tl, 1, "return (1);\n");
vcc_ProcAction(tl->curproc, VCL_RET_SYNTH, tl->t);
ExpectErr(tl, ')');
vcc_NextToken(tl);
return;
}
#define VCL_RET_MAC(l, U, B) \
do { \
if (vcc_IdIs(tl->t, #l)) { \
Fb(tl, 1, "VRT_handling(ctx, VCL_RET_" #U ");\n"); \
Fb(tl, 1, "return (1);\n"); \
vcc_ProcAction(tl->curproc, VCL_RET_##U, tl->t);\
retval = 1; \
} \
} while (0);
#include "tbl/vcl_returns.h"
#undef VCL_RET_MAC
if (!retval) {
VSB_printf(tl->sb, "Expected return action name.\n");
vcc_ErrWhere(tl, tl->t);
ERRCHK(tl);
}
vcc_NextToken(tl);
ExpectErr(tl, ')');
vcc_NextToken(tl);
}
