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xC-gen-proto: reduce enums to single bytes 

That's already way more than we can possibly use.
This commit is contained in:
Přemysl Eric Janouch 2022-09-10 14:39:23 +02:00
parent 8c8e06b015
commit f3cc137342
Signed by: p
GPG Key ID: A0420B94F92B9493
3 changed files with 11 additions and 11 deletions
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6
xC-gen-proto-c.awk
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@ -110,11 +110,11 @@ function codegen_enum(name, cg, ctype) {
# XXX: This should also check if it isn't out-of-range for any reason,
# but our usage of sprintf() stands in the way a bit.
CodegenSerialize[name] = "\tstr_pack_i32(w, %s);\n"
CodegenSerialize[name] = "\tstr_pack_i8(w, %s);\n"
CodegenDeserialize[name] = \
"\t{\n" \
"\t\tint32_t v = 0;\n" \
"\t\tif (!msg_unpacker_i32(r, &v) || !v)\n" \
"\t\tint8_t v = 0;\n" \
"\t\tif (!msg_unpacker_i8(r, &v) || !v)\n" \
"\t\t\treturn false;\n" \
"\t\t%s = v;\n" \
"\t}\n"

12
xC-gen-proto-go.awk
View File

@ -161,7 +161,7 @@ function codegen_begin() {
print "\tvar n int64"
print "\tif err := json.Unmarshal(data, &n); err != nil {"
print "\t\treturn 0, err"
print "\t} else if n > math.MaxInt32 || n < math.MinInt32 {"
print "\t} else if n > math.MaxInt8 || n < math.MinInt8 {"
print "\t\treturn 0, errors.New(`integer out of range`)"
print "\t} else {"
print "\t\treturn n, nil"
@ -191,7 +191,7 @@ function codegen_enum_value(name, subname, value, cg, goname) {
function codegen_enum(name, cg, gotype, fields) {
gotype = PrefixCamel name
print "type " gotype " int"
print "type " gotype " int8"
print ""
print "const ("
@ -239,12 +239,10 @@ function codegen_enum(name, cg, gotype, fields) {
# XXX: This should also check if it isn't out-of-range for any reason,
# but our usage of sprintf() stands in the way a bit.
CodegenSerialize[name] = \
"\tdata = binary.BigEndian.AppendUint32(data, uint32(%s))\n"
CodegenSerialize[name] = "\tdata = append(data, uint8(%s))\n"
CodegenDeserialize[name] = \
"\tif len(data) >= 4 {\n" \
"\t\t%s = " gotype "(int32(binary.BigEndian.Uint32(data)))\n" \
"\t\tdata = data[4:]\n" \
"\tif len(data) >= 1 {\n" \
"\t\t%s, data = " gotype "(data[0]), data[1:]\n" \
"\t} else {\n" \
"\t\treturn nil, false\n" \
"\t}\n"

4
xC-gen-proto.awk
View File

@ -15,7 +15,7 @@
# Booleans are one byte each.
# Strings must be valid UTF-8, use u8<> to lift that restriction.
# String and array lengths are encoded as u32.
# Enumeration values automatically start at 1, and are encoded as i32.
# Enumeration values automatically start at 1, and are encoded as i8.
# Any struct or union field may be a variable-length array.
#
# Message framing is done externally, but also happens to prefix u32 lengths.
@ -189,6 +189,8 @@ function defenum( name, ident, value, cg) {
value = readnumber()
if (!value)
fatal("enumeration values cannot be zero")
if (value < -128 || value > 127)
fatal("enumeration value out of range")
expect(accept(","))
append(EnumValues, name, SUBSEP ident)
if (EnumValues[name, ident]++)