mirror of
https://github.com/Ed94/gencpp.git
synced 2024-11-10 02:54:53 -08:00
Removing c99 header gen code, going to use the scanner implementation when its done.
This commit is contained in:
parent
d5e6421b03
commit
642fb16d4f
@ -1,541 +0,0 @@
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/*
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Will generate a c99 compliant version of the gen library
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Note: This is done this way to test usage of library.
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*/
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#define GEN_DEFINE_DSL
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#include "gen.cpp"
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using namespace gen;
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ct char const* Header_Comment =
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R"(/*
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genc: A simple staged metaprogramming library for C99.
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This library is intended for small-to midsize projects.
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AST type checking supports only a small subset of c++.
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See the 'ECode' namespace and 'gen API' region to see what is supported.
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### *WHAT IS NOT PROVIDED*
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* Macro or template generation : This library is to avoid those, adding support for them adds unnecessary complexity.
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If you desire define them outside the gen_time scopes.
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* Expression validation : Execution expressions are defined using the untyped string API.
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There is no parse API for validating expression (possibly will add in the future)
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* Complete file parser DSL : This isn't like the unreal header tool.
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Code injection to file or based off a file contents is not supported by the api. However nothing is stopping you using the library for that purpose.
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* Modern c++ (STL library) features
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The AST is managed by the library and provided the user via its interface prodedures.
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Notes:
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* The allocator definitions used are exposed to the user incase they want to dictate memory usage
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* ASTs are wrapped for the user in a Code struct which essentially a warpper for a AST* type.
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* Both AST and Code have member symbols but their data layout is enforced to be POD types.
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Data layout of AST struct:
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genc_CodeT Type;
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bool Readonly;
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genc_AST* Parent;
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genc_string Name ;
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genc_string Comment;
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union {
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array(genc_AST*) Entries;
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genc_string Content;
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};
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*`CodeT` is a typedef for `ECode::Type` which is the type of the enum.*
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ASTs can be set to readonly by calling Code's lock() member function.
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Adding comments is always available even if the AST is set to readonly.
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### There are four sets of interfaces for Code AST generation the library provides
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* Upfront
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* Incremental
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* Parsing
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* Untyped
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### Upfront Construction
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All component ASTs must be previously constructed, and provided on creation of the code AST.
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The construction will fail and return InvalidCode otherwise.
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Interface :
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* genc_def_class
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* genc_def_class_body
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* genc_def_class_fwd
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* genc_def_enum
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* genc_def_enum_class
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* genc_def_enum_body
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* genc_def_global_body
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* genc_def_namespace
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* genc_def_namespace_body
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* genc_def_operator
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* genc_def_param
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* genc_def_params
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* genc_def_proc
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* genc_def_proc_body
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* genc_def_proc_fwd
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* genc_def_operator_fwd
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* genc_def_specifier
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* genc_def_specifiers
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* genc_def_struct
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* genc_def_struct_body
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* genc_def_struct_fwd
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* genc_def_variable
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* genc_def_type
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* genc_def_using
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* genc_def_using_namespace
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### Incremental construction
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A Code ast is provided but only completed upfront if all components are provided.
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Components are then added using the AST API for adding ASTs:
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* genc_code_add( AST*, AST* other ) // Adds AST with validation.
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* genc_code_add_entry( AST*, AST* other ) // Adds AST entry without validation.
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Code ASTs may be explictly validated at anytime using Code's check() member function.
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Interface :
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* genc_make_class
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* genc_make_enum
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* genc_make_enum_class
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* genc_make_fwd
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* genc_make_global_body
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* genc_make_namespace
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* genc_make_operator
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* genc_make_params
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* genc_make_proc
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* genc_make_specifiers
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* genc_make_struct
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* genc_make_variable
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* genc_make_type
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* genc_make_using
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### Parse construction
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A string provided to the API is parsed for the intended language construct.
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Interface :
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* genc_parse_class
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* genc_parse_classes
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* genc_parse_class_fwd
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* genc_parse_classes_fwd
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* genc_parse_enum
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* genc_parse_enums
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* genc_parse_global_body
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* genc_parse_namespace
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* genc_parse_namespaces
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* genc_parse_params
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* genc_parse_proc
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* genc_parse_procs
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* genc_parse_operator
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* genc_parse_operators
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* genc_parse_specifiers
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* genc_parse_struct
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* genc_parse_strucs
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* genc_parse_variable
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* genc_parse_variables
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* genc_parse_type
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* genc_parse_types
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* genc_parse_using
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* genc_parse_usings
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The parse API treats any execution scope definitions with no validation and are turned into untyped Code ASTs.
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This includes the assignmetn of variables; due to the library not yet supporting c/c++ expression parsing.
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The plural variants provide an array of codes, its up to the user to add them to a body AST
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(they are not auto-added to a body)
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### Untyped constructions
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Code ASTs are constructed using unvalidated strings.
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Interface :
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* genc_untyped_str
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* genc_untyped_fmt
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* genc_untyped_token_fmt
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During serialization any untyped Code AST is has its string value directly injected inline of
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whatever context the content existed as an entry within.
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Even though thse are not validated from somewhat correct c/c++ syntax or components, it doesn't mean that
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Untyped code can be added as any component of a Code AST:
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* Untyped code cannot have children, thus there cannot be recursive injection this way.
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* Untyped code can only be a child of a parent of body AST, or for values of an assignment.
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These restrictions help prevent abuse of untyped code to some extent.
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*/
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)";
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Code IfDef_GENC_IMPLEMENTATION;
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Code EndIf_GENC_IMPLEMENTATION;
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Code make_log_failure()
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{
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Code result = make_global_body();
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{
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result->add( untyped_str(
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R"(#ifdef GEN_USE_FATAL)"
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));
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result->add( function_code(
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inline
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sw genc_log_failure(char const *fmt, ...)
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{
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if ( genc_global_ShouldShowDebug == false )
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return 0;
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sw res;
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va_list va;
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va_start(va, fmt);
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res = zpl_printf_va(fmt, va);
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va_end(va);
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return res;
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}
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));
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result->add( untyped_str(
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R"(#else)"
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));
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result->add( proc_code(
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inline
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sw genc_log_failure(char const *fmt, ...)
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{
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local_persist thread_local
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char buf[ZPL_PRINTF_MAXLEN] = { 0 };
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va_list va;
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#if Build_Debug
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va_start(va, fmt);
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zpl_snprintf_va(buf, ZPL_PRINTF_MAXLEN, fmt, va);
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va_end(va);
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assert_crash(buf);
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return -1;
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#else
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va_start(va, fmt);
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zpl_printf_err_va( fmt, va);
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va_end(va);
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zpl_exit(1);
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return -1;
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#endif
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}
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));
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result->add( untyped_str(
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R"(#endif)"
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));
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result->check();
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}
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return result;
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}
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Code make_ECode()
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{
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Code ECode = make_global_body();
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{
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ECode->add( enum_code(
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enum genc_ECode
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{
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Invalid,
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Untyped,
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Enum,
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Enum_Body,
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Global_Body,
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Parameters,
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Proc,
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Proc_Body,
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Proc_Forward,
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Specifiers,
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Struct,
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Struct_Body,
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Variable,
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Typedef,
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Typename,
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Num_Types
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};
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typedef u32 genc_CodeT;
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));
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ECode->add( function_code(
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inline
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char const* genc_ecode_to_str( Type type )
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{
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genc_local_persist
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char const* lookup[Num_Types] = {
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"Invalid",
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"Untyped",
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"Access_Public",
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"Access_Private",
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"Access_Protected",
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"Class",
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"Enum",
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"Enum_Body",
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"Global_Body",
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"Namespace",
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"Namespace_Body",
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"Parameters",
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"Proc",
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"Proc_Body",
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"Proc_Forward",
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"Specifiers",
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"Struct",
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"Struct_Body",
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"Variable",
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"Typedef",
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"Typename",
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"Using",
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};
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return lookup[ type ];
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}
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));
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ECode->check();
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}
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return ECode;
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}
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Code make_EOperator()
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{
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Code eoperator = make_global_body();
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return eoperator;
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}
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Code make_ESpecifier()
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{
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Code especifier = make_global_body();
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return especifier;
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}
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Code make_Code()
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{
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Code code = make_global_body();
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code->add( struct_code(
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struct genc_AST
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{
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genc_CodeT Type;
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bool Readonly;
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genc_AST* Parent;
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genc_string Name;
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genc_string Comment;
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union {
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array(genc_AST*) Entries;
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genc_string Content;
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};
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};
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typedef struct genc_AST genc_AST;
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typedef genc_AST* Code;
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));
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code->add( function_code(
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bool genc_ast_add( genc_Code other );
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));
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code->add( function_code(
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genc_forceinline
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void genc_ast_add_entry( genc_Code self, genc_Code other )
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{
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genc_array_append( self->Entries, other );
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other->Parent = self;
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}
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));
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code->add( untyped_str(
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R"(#define genc_code_body( AST_ ) AST->Entries[0])", 47
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));
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code->add( function_code(
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genc_forceinline
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bool genc_code_has_entries( Code self ) const
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{
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genc_local_persist
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bool lookup[ genc_ECode::Num_Types] = {
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false, // Invalid
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false, // Untyped
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true, // Global_Body
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true, // Parameters
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true, // Proc
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true, // Proc_Body
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true, // Proc_Foward
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false, // Specifies
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true, // Struct
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true, // Struct_Body
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true, // Variable
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true, // Typedef
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true, // Typename
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};
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return lookup[self->Type];
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}
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));
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code->check();
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return code;
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}
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Code make_static_Data()
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{
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Code
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data = make_global_body();
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data->add( IfDef_GENC_IMPLEMENTATION );
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data->add( global_body_code(
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static genc_array(genc_AST) genc_CodePool = nullptr;
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static genc_array(genc_arena) genc_StringArenas = nullptr;
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static genc_StringTable genc_StringMap;
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static genc_TypeTable genc_TypeMap;
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static sw genc_InitSize_CodePool = genc_megabytes(64);
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static sw genc_InitSize_StringArena = genc_megabytes(32);
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static sw genc_InitSize_StringTable = genc_megabytes(4);
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static sw genc_InitSize_TypeTable = genc_megabytes(4);
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static allocator genc_Allocator_CodePool = zpl_heap();
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static allocator genc_Allocator_StringArena = zpl_heap();
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static allocator genc_Allocator_StringTable = zpl_heap();
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static allocator genc_Allocator_TypeTable = zpl_heap();
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));
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data->add( untyped_str( R"(#ifdef GENC_DEFINE_LIBRARY_CODE_CONSTANTS)"));
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data->add( global_body_code(
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Code t_void;
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Code t_bool;
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Code t_char;
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Code t_char_wide;
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Code t_s8;
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Code t_s16;
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Code t_s32;
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Code t_s64;
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Code t_u8;
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Code t_u16;
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Code t_u32;
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Code t_u64;
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Code t_sw;
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Code t_uw;
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Code t_f32;
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Code t_f64;
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));
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data->add( untyped_str( R"(#endif)"));
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data->add( global_body_code(
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Code spec_inline;
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Code spec_const;
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));
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data->add( EndIf_GENC_IMPLEMENTATION );
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return data;
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}
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Code make_make_code()
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{
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}
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Code make_init()
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{
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||||
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}
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Code make_mem_config_interface()
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{
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}
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Code make_internal_funcs()
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{
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||||
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}
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Code make_upfront()
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{
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||||
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}
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Code make_incremental()
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{
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||||
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}
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Code make_parsing()
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{
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||||
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||||
}
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||||
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Code make_untyped()
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{
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||||
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||||
}
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||||
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Code make_interface()
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||||
{
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||||
}
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int gen_main()
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{
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Memory::setup();
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gen::init();
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IfDef_GENC_IMPLEMENTATION = untyped_str(
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R"(#ifdef GENC_IMPLEMENTATION)"
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);
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EndIf_GENC_IMPLEMENTATION = untyped_str(
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R"(#endif // GENC_IMPLEMENTATION)"
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);
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Code header_comment = untyped_str( Header_Comment, sizeof( Header_Comment ) );
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Code log_failure = make_log_failure();
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Code ecode = make_ECode();
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Code eoperator = make_EOperator();
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Code especifier = make_ESpecifier();
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Code code = make_Code();
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Builder
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builder;
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builder.open( "genc.h" );
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builder.print( header_comment );
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builder.print( log_failure );
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builder.print( ecode );
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builder.print( eoperator );
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builder.print( especifier );
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builder.print( code );
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builder.write();
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Memory::cleanup();
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return 0;
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||||
}
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@ -1,55 +0,0 @@
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# HEADER COMMENT
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||||
1, 166
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||||
|
||||
# CODE TYPES
|
||||
Invalid
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||||
Untyped
|
||||
Enum
|
||||
Enum_Body
|
||||
Global_Body
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||||
Parameters
|
||||
Proc
|
||||
Proc_Body
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||||
Proc_Forward
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||||
Specifiers
|
||||
Struct
|
||||
Struct_Body
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||||
Variable
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||||
Typedef
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||||
Typename
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||||
Using
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||||
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# CODE_HAS_ENTRIES
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||||
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# SPECIFIER_TYPES
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Attribute
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||||
Alignas
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||||
Constexpr
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||||
Const
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||||
Inline
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||||
Pointer
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||||
API_Import
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||||
API_Export
|
||||
External_Linkage
|
||||
Internal_Linkage
|
||||
Local_Persist
|
||||
Thread_Local
|
||||
Invalid
|
||||
|
||||
# SPECIFIER_STRINGS
|
||||
"alignas",
|
||||
"const",
|
||||
"inline",
|
||||
"*",
|
||||
#if defined(ZPL_SYSTEM_WINDOWS)
|
||||
"__declspec(dllexport)",
|
||||
"__declspec(dllimport)",
|
||||
#elif defined(ZPL_SYSTEM_MACOS)
|
||||
"__attribute__ ((visibility (\"default\")))",
|
||||
"__attribute__ ((visibility (\"default\")))",
|
||||
#endif
|
||||
"extern",
|
||||
"static",
|
||||
"static",
|
||||
"thread_local"
|
||||
|
||||
@ -1,34 +0,0 @@
|
||||
__VERSION 1
|
||||
|
||||
word AST, genc_AST
|
||||
word Code, genc_Code
|
||||
|
||||
word ECode, genc_ECode
|
||||
word EOperator, genc_EOperator
|
||||
word ESpecifier, genc_ESpecifier
|
||||
word CodeT, genc_CodeT
|
||||
|
||||
word string, genc_string
|
||||
word init, genc_init
|
||||
|
||||
namespace def_, genc_def_
|
||||
namespace make_, genc_make_
|
||||
namespace parse_, genc_parse_
|
||||
namespace untyped_, genc_untyped_
|
||||
namespace set_init_, genc_set_init_
|
||||
namespace set_allocator_, genc_set_allocator_
|
||||
|
||||
word clean_code_pool, genc_clean_code_pool
|
||||
|
||||
word Builder, genc_Builder
|
||||
|
||||
word CodePool, genc_CodePool
|
||||
word StringArenas, genc_StringArenas
|
||||
word CodePOD, genc_AST
|
||||
word StringMap, genc_StringMap
|
||||
word TypeMap, genc_TypeMap
|
||||
|
||||
namespace InitSize_, genc_InitSize_
|
||||
namespace Allocator_, genc_Allocator_
|
||||
|
||||
namespace spec_, genc_spec
|
||||
Loading…
Reference in New Issue
Block a user