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widl: Add support for '%' operator in expressions.

This commit is contained in:
Rob Shearman 2008-04-20 22:16:10 +01:00 committed by Alexandre Julliard
parent d27c7601e5
commit ea9932557a
4 changed files with 15 additions and 1 deletions
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2
tools/widl/header.c
View File

@ -520,6 +520,7 @@ void write_expr(FILE *h, const expr_t *e, int brackets)
break;
case EXPR_SHL:
case EXPR_SHR:
case EXPR_MOD:
case EXPR_MUL:
case EXPR_DIV:
case EXPR_ADD:
@ -533,6 +534,7 @@ void write_expr(FILE *h, const expr_t *e, int brackets)
switch (e->type) {
case EXPR_SHL: fprintf(h, " << "); break;
case EXPR_SHR: fprintf(h, " >> "); break;
case EXPR_MOD: fprintf(h, " %% "); break;
case EXPR_MUL: fprintf(h, " * "); break;
case EXPR_DIV: fprintf(h, " / "); break;
case EXPR_ADD: fprintf(h, " + "); break;

10
tools/widl/parser.y
View File

@ -293,7 +293,7 @@ static void add_explicit_handle_if_necessary(func_t *func);
%left '|'
%left '&'
%left '-' '+'
%left '*' '/'
%left '*' '/' '%'
%left SHL SHR
%left '.' MEMBERPTR '[' ']'
%right '~'
@ -632,6 +632,7 @@ expr: aNUM { $$ = make_exprl(EXPR_NUM, $1); }
| expr '&' expr { $$ = make_expr2(EXPR_AND, $1, $3); }
| expr '+' expr { $$ = make_expr2(EXPR_ADD, $1, $3); }
| expr '-' expr { $$ = make_expr2(EXPR_SUB, $1, $3); }
| expr '%' expr { $$ = make_expr2(EXPR_MOD, $1, $3); }
| expr '*' expr { $$ = make_expr2(EXPR_MUL, $1, $3); }
| expr '/' expr { $$ = make_expr2(EXPR_DIV, $1, $3); }
| expr SHL expr { $$ = make_expr2(EXPR_SHL, $1, $3); }
@ -1238,6 +1239,13 @@ static expr_t *make_expr2(enum expr_type type, expr_t *expr1, expr_t *expr2)
case EXPR_SUB:
e->cval = expr1->cval - expr2->cval;
break;
case EXPR_MOD:
if (expr2->cval == 0) {
error_loc("divide by zero in expression\n");
e->cval = 0;
} else
e->cval = expr1->cval % expr2->cval;
break;
case EXPR_MUL:
e->cval = expr1->cval * expr2->cval;
break;

3
tools/widl/typegen.c
View File

@ -352,6 +352,7 @@ static int compare_expr(const expr_t *a, const expr_t *b)
case EXPR_AND:
case EXPR_ADD:
case EXPR_SUB:
case EXPR_MOD:
case EXPR_MUL:
case EXPR_DIV:
case EXPR_SHL:
@ -3148,6 +3149,7 @@ static void write_struct_expr(FILE *h, const expr_t *e, int brackets,
break;
case EXPR_SHL:
case EXPR_SHR:
case EXPR_MOD:
case EXPR_MUL:
case EXPR_DIV:
case EXPR_ADD:
@ -3161,6 +3163,7 @@ static void write_struct_expr(FILE *h, const expr_t *e, int brackets,
switch (e->type) {
case EXPR_SHL: fprintf(h, " << "); break;
case EXPR_SHR: fprintf(h, " >> "); break;
case EXPR_MOD: fprintf(h, " %% "); break;
case EXPR_MUL: fprintf(h, " * "); break;
case EXPR_DIV: fprintf(h, " / "); break;
case EXPR_ADD: fprintf(h, " + "); break;

1
tools/widl/widltypes.h
View File

@ -164,6 +164,7 @@ enum expr_type
EXPR_MEMBERPTR,
EXPR_MEMBER,
EXPR_ARRAY,
EXPR_MOD,
};
enum type_kind