scc

Simple C99 Compiler
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commit 5884598d6118dbbe909880ee6c6a1e38cd602478
parent e39bdf2da0218151502600e8607a1b8aa690b12f
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Sat, 28 Nov 2015 16:00:02 +0100

Convert errors in Case() in semantic errors

Again, it is not needed to recover in this case.

Diffstat:
cc1/stmt.c | 21++++++++++++---------
1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/cc1/stmt.c b/cc1/stmt.c @@ -238,17 +238,20 @@ Case(Symbol *lbreak, Symbol *lcont, Caselist *lswitch) expect(CASE); if (!lswitch) - error("case label not within a switch statement"); + errorp("case label not within a switch statement"); if ((np = iconstexpr()) == NULL) - error("case label does not reduce to an integer constant"); + errorp("case label does not reduce to an integer constant"); expect(':'); - pcase = xmalloc(sizeof(*pcase)); - pcase->expr = np; - pcase->next = lswitch->head; - emit(OLABEL, pcase->label = newlabel()); - lswitch->head = pcase; - if (++lswitch->nr == NR_SWITCH) - error("too case labels for a switch statement"); + if (lswitch) { + pcase = xmalloc(sizeof(*pcase)); + pcase->expr = np; + pcase->next = lswitch->head; + emit(OLABEL, pcase->label = newlabel()); + lswitch->head = pcase; + if (++lswitch->nr == NR_SWITCH) + errorp("too case labels for a switch statement"); + /* TODO: Avoid repetion of this error for the same switch */ + } stmt(lbreak, lcont, lswitch); }