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Added support for imports and many other .proto features.

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Change-Id: I6600021b7ec8c486794349511232c3e604421c5b
Tested: on Linux.
This commit is contained in:
Wouter van Oortmerssen
2015-10-05 17:39:08 -07:00
parent b4db88808f
commit 94680f5483
15 changed files with 505 additions and 206 deletions
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50
src/idl_gen_fbs.cpp
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@@ -24,19 +24,49 @@ namespace flatbuffers {
static std::string GenType(const Type &type) {
switch (type.base_type) {
case BASE_TYPE_STRUCT: return type.struct_def->name;
case BASE_TYPE_UNION: return type.enum_def->name;
case BASE_TYPE_VECTOR: return "[" + GenType(type.VectorType()) + "]";
default: return kTypeNames[type.base_type];
case BASE_TYPE_STRUCT:
return type.struct_def->defined_namespace->GetFullyQualifiedName(
type.struct_def->name);
case BASE_TYPE_UNION:
return type.enum_def->defined_namespace->GetFullyQualifiedName(
type.enum_def->name);
case BASE_TYPE_VECTOR:
return "[" + GenType(type.VectorType()) + "]";
default:
return kTypeNames[type.base_type];
}
}
static void GenNameSpace(const Namespace &name_space, std::string *_schema,
const Namespace **last_namespace) {
if (*last_namespace == &name_space) return;
*last_namespace = &name_space;
auto &schema = *_schema;
schema += "namespace ";
for (auto it = name_space.components.begin();
it != name_space.components.end(); ++it) {
if (it != name_space.components.begin()) schema += ".";
schema += *it;
}
schema += ";\n\n";
}
// Generate a flatbuffer schema from the Parser's internal representation.
std::string GenerateFBS(const Parser &parser, const std::string &file_name,
const GeneratorOptions &opts) {
// Proto namespaces may clash with table names, so we have to prefix all:
for (auto it = parser.namespaces_.begin(); it != parser.namespaces_.end();
++it) {
for (auto comp = (*it)->components.begin(); comp != (*it)->components.end();
++comp) {
(*comp) = "_" + (*comp);
}
}
std::string schema;
schema += "// Generated from " + file_name + ".proto\n\n";
if (opts.include_dependence_headers) {
#ifdef FBS_GEN_INCLUDES // TODO: currently all in one file.
int num_includes = 0;
for (auto it = parser.included_files_.begin();
it != parser.included_files_.end(); ++it) {
@@ -48,19 +78,14 @@ std::string GenerateFBS(const Parser &parser, const std::string &file_name,
}
}
if (num_includes) schema += "\n";
#endif
}
schema += "namespace ";
auto name_space = parser.namespaces_.back();
for (auto it = name_space->components.begin();
it != name_space->components.end(); ++it) {
if (it != name_space->components.begin()) schema += ".";
schema += *it;
}
schema += ";\n\n";
// Generate code for all the enum declarations.
const Namespace *last_namespace = nullptr;
for (auto enum_def_it = parser.enums_.vec.begin();
enum_def_it != parser.enums_.vec.end(); ++enum_def_it) {
EnumDef &enum_def = **enum_def_it;
GenNameSpace(*enum_def.defined_namespace, &schema, &last_namespace);
GenComment(enum_def.doc_comment, &schema, nullptr);
schema += "enum " + enum_def.name + " : ";
schema += GenType(enum_def.underlying_type) + " {\n";
@@ -76,6 +101,7 @@ std::string GenerateFBS(const Parser &parser, const std::string &file_name,
for (auto it = parser.structs_.vec.begin();
it != parser.structs_.vec.end(); ++it) {
StructDef &struct_def = **it;
GenNameSpace(*struct_def.defined_namespace, &schema, &last_namespace);
GenComment(struct_def.doc_comment, &schema, nullptr);
schema += "table " + struct_def.name + " {\n";
for (auto field_it = struct_def.fields.vec.begin();