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Order caseblock values in ascending order

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This commit is contained in:
David Schmenk 2018-03-16 14:52:27 -07:00
parent bbbe2d0d38
commit ec0fdde747
2 changed files with 29 additions and 13 deletions
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25
src/toolsrc/parse.c
View File

@ -761,7 +761,7 @@ t_opseq *parse_expr(t_opseq *codeseq, int *stackdepth)
if (stackdepth1 != *stackdepth)
parse_error("Inconsistent AND value counts");
codeseq = gen_codetag(codeseq, tag_or);
}
}
else if (scantoken == TERNARY_TOKEN)
{
int tag_else, tag_endtri;
@ -1056,14 +1056,23 @@ int parse_stmnt(void)
{
if (scantoken == OF_TOKEN)
{
tag_of = tag_new(BRANCH_TYPE);
constval = 0;
parse_constexpr(&constval, &constsize);
for (i = 0; i < casecnt; i++)
if (caseval[i] == constval)
parse_error("Duplicate CASE");
tag_of = tag_new(BRANCH_TYPE);
caseval[casecnt] = constval;
casetag[casecnt] = tag_of;
i = casecnt;
while ((i > 0) && (caseval[i-1] > constval))
{
//
// Move larger case consts up
//
caseval[i] = caseval[i-1];
casetag[i] = casetag[i-1];
i--;
}
if (casecnt && (caseval[i] == constval))
parse_error("Duplicate CASE");
caseval[i] = constval;
casetag[i] = tag_of;
casecnt++;
emit_codetag(tag_of);
while (parse_stmnt()) next_line();
@ -1124,7 +1133,7 @@ int parse_stmnt(void)
if (infunc)
{
int i;
i = stack_loop;
while (i >= 2)
{

17
src/toolsrc/parse.pla
View File

@ -811,12 +811,19 @@ def parse_stmnt
is OF_TKN
if casecnt == CASENUM; exit_err(ERR_OVER|ERR_TABLE); fin
caseconst, drop, drop = parse_constexpr
for i = 0 to casecnt-1
if caseval=>[i] == caseconst; exit_err(ERR_DUP|ERR_STATE); fin
next
tag_of = new_tag(RELATIVE_FIXUP)
caseval=>[casecnt] = caseconst
casetag=>[casecnt] = tag_of
i = casecnt
while i > 0 and caseval=>[i-1] > caseconst
//
// Move larger case consts up
//
caseval=>[i] = caseval=>[i-1]
casetag=>[i] = casetag=>[i-1]
i--
loop
if casecnt and caseval=>[i] == caseconst; exit_err(ERR_DUP|ERR_STATE); fin
caseval=>[i] = caseconst
casetag=>[i] = tag_of
casecnt++
emit_tag(tag_of)
while parse_stmnt