Progress on docs, adjustments

This commit is contained in:
Edward R. Gonzalez 2024-12-16 10:36:55 -05:00
parent abffa74ad8
commit 527fb3b132
11 changed files with 101 additions and 21 deletions

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@ -14,7 +14,7 @@ If using the library's provided build scripts:
.\build.ps1 <compiler> <debug or omit> base
```
Standard formats:
## Content Overview
* **base**: Files are in granular pieces separated into four directories:
* **dependencies**: Originally from the c-zpl library and modified thereafter.
@ -123,15 +123,15 @@ The vast majority of macros should be single-line subsitutions that either add:
There are ***five*** header files which are automatically generated using [base_codegen.hpp](./helpers/base_codegen.hpp) by [base.cpp](./base.cpp). They are all located in [components/gen](./components/gen/).
* [`ecodetypes.hpp`](./components/gen/ecode.hpp): `CodeType` enum definition and related implementaiton. Generation is based off of [`ECodeType.csv](./enums/ECodeTypes.csv).
* [`especifier.hpp`](./components/gen/especifier.hpp): `Specifier` enum definition, etc. Generated using [`ESpecifier.csv`](./enums/ESpecifier.csv).
* [`eoperator.hpp`](./components/gen/eoperator.hpp): `Operator` enum definition, etc. Generated using [`EOperator.hpp`](./enums/EOperator.csv).
* [`etoktype.cpp`](./components/gen/etoktype.cpp): `TokType` enum defininition, etc. Used by the lexer and parser backend. Uses two csvs:
* [`ETokType.csv`](./enums/ETokType.csv): Provides the enum entries and their strinng ids.
* [`AttributeTokens.csv`](./enums/AttributeTokens.csv): Provides tokens entries that should be considered as attributes by the lexer and parser. Sspecfiically macro attributes such as those use for exporting symbols.
* [`ast_inlines.hpp`](./components/gen/ast_inlines.hpp): Member trivial `operator` definitions for C++ code types. Does not use a csv.
* [ecodetypes.hpp](./components/gen/ecode.hpp): `CodeType` enum definition and related implementaiton. Generation is based off of [ECodeType.csv](./enums/ECodeTypes.csv).
* [especifier.hpp](./components/gen/especifier.hpp): `Specifier` enum definition, etc. Generated using [ESpecifier.csv](./enums/ESpecifier.csv).
* [eoperator.hpp](./components/gen/eoperator.hpp): `Operator` enum definition, etc. Generated using [EOperator.hpp](./enums/EOperator.csv).
* [etoktype.cpp](./components/gen/etoktype.cpp): `TokType` enum defininition, etc. Used by the lexer and parser backend. Uses two csvs:
* [ETokType.csv](./enums/ETokType.csv): Provides the enum entries and their strinng ids.
* [AttributeTokens.csv](./enums/AttributeTokens.csv): Provides tokens entries that should be considered as attributes by the lexer and parser. Sspecfiically macro attributes such as those use for exporting symbols.
* [ast_inlines.hpp](./components/gen/ast_inlines.hpp): Member trivial `operator` definitions for C++ code types. Does not use a csv.
[`misc.hpp`](./helpers/misc.hpp): Has shared functions used by the library generation meta-programs throughout this codebase.
[misc.hpp](./helpers/misc.hpp): Has shared functions used by the library generation meta-programs throughout this codebase.
If using the library's provided build scripts:
@ -160,9 +160,53 @@ Names or Content fields are interned strings and thus showed be cached using `ca
`def_operator` is the most sophisticated upfront constructor as it has multiple permutations of definitions that could be created that are not trivial to determine if valid.
The parser is documented under [`docs/Parsing.md`](../docs/Parsing.md) and [`docs/Parser_Algo.md`](../docs/Parser_Algo.md).
The parser is documented under [`docs/Parsing.md`](../docs/Parsing.md) and [`docs/Parser_Algo.md`](../docs/Parser_Algo.md). Read that and the entire library if you want to extend it.
### Attributes
To add additional macro attributes, all that has to be done is modifying [`AttributeTokens.csv`](./enums/AttributeTokens.csv).
### Specifiers
To add additional macro specifiers, the following needs to be done:
1. Adjust [especifier.hpp](./components/gen/especifier.hpp)
2. Adjust [etoktype.cpp](./components/gen/etoktype.cpp)
3. Adjust [parser_case_macros.cpp](./components/parser_case_macros.cpp)
If the specifier is a new trailing specifier on function definitions:
Head into [base_codegen.hpp](./helpers/base_codegen.hpp): `gen_especifier`. There will be an `is_trailing` function that needs to be adjusted with an additional case for the user's new trailing specifier.
### Code Types
These require the following to be handled to the equivalent extent as the other types:
1. Adjust [ECodeTypes.csv](./enums/ECodeTypes.csv) with the new types
2. Define a new `AST_<Name>` and `Code<Name>`. See
* [ast.hpp](./components/ast.hpp): Initial forwards and user defined conversion for Code.
* [ast_types.hpp](./components/ast_types.hpp): Define the `AST_<Name>` struct.
* [code_types.hpp](./components/code_types.hpp): Defne the `CodeType` struct. If its needs an iterator see: `struct CodeBody` & `struct CodeParams`.
3. [ast_case_macros.cpp](./components/ast_case_macros.cpp): Review cases here if the new code type needs to be considered.
4. [ast.cpp](./components/ast.cpp): Need to review
* `code_debug_str`
* `code_is_equal`
* `code_to_strbuilder_ptr`
* `code_validate_body`
5. [code_serialization.cpp](./components/code_serialization.cpp): Define serialization here.
6. [inlines.hpp](./components/inlines.hpp): Any inline definitions for the `struct Code<Name>` are defined here.
7. [interface.cpp](./components/interface.hpp): Define the `Code<Name>` upfront and parsing interface.
8. [interface.upfront.cpp](./components/interface.upfront.cpp): Define the upfront constructor implementation.
9. [interface.parsing.cpp](./components/interface.parsing.cpp): Define the parsing interface implementation.
10. [lexer.cpp](./components/lexer.cpp): Adjust the lexer as needed.
11. [parser.cpp](./components/parser.cpp): Adjust the parser as needed.
## A note on compilation and runtime generation speed
The library is designed to be fast to compile and generate code at runtime as fast as resonable possible on a debug build.
The library is designed to be fast to compile and generate code at runtime as fast as possible on a debug build.
Its recommended that your metaprogam be compiled using a single translation unit (unity build).
## Whats with the expression / executions support #ifd and enums?
The library is a *work in progress* and those are unfinished hypotheticals for adding the ability to manage or parse the AST of expresions or execution scope code.
They are entirely untested and not meant to be used yet, futher there is no parsing support or an upfront interface for what CodeTypes are defined so far.

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@ -1,6 +1,5 @@
#define GEN_DEFINE_LIBRARY_CODE_CONSTANTS
#define GEN_ENFORCE_STRONG_CODE_TYPES
#define GEN_EXPOSE_BACKEND
#define GEN_C_LIKE_CPP 1
#include "gen.cpp"
#include "helpers/push_ignores.inline.hpp"

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@ -72,7 +72,18 @@ inline Str spec_to_str( Specifier type )
inline bool spec_is_trailing( Specifier specifier )
{
return specifier > Spec_Virtual;
switch (specifier) {
case Spec_Const:
case Spec_Final:
case Spec_NoExceptions:
case Spec_Override:
case Spec_Pure:
case Spec_Volatile:
return true;
default:
return false;
}
}
inline Specifier str_to_specifier( Str str )

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@ -214,7 +214,18 @@ CodeBody gen_especifier( char const* path, bool use_c_definition = false )
inline
bool spec_is_trailing( Specifier specifier )
{
return specifier > Spec_Virtual;
switch (specifier) {
case Spec_Const:
case Spec_Final:
case Spec_NoExceptions:
case Spec_Override:
case Spec_Pure:
case Spec_Volatile:
return true;
default:
return false;
}
}
)));

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@ -2,7 +2,6 @@
#define GEN_DEFINE_LIBRARY_CODE_CONSTANTS
#define GEN_ENFORCE_STRONG_CODE_TYPES
#define GEN_EXPOSE_BACKEND
#include "gen.cpp"
#include "helpers/push_ignores.inline.hpp"

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@ -8,11 +8,13 @@
# Segemented Library Generation
Create a segemented library using `segemented.cpp`
The principal (user) files are `gen.hpp` and `gen.cpp`.
They contain includes for its various components: `components/<component_name>.<hpp/cpp>`
Dependencies are bundled into `gen.dep.<hpp/cpp>`. They are included in `gen.<hpp/cpp>` before component includes.
Just like the `gen.<hpp/cpp>` they include their components: `dependencies/<dependency_name>.<hpp/cpp>`
Just like the `gen.<hpp/cpp>` they include their components: `dependencies/<dependency_name>.<hpp/cpp>`. The auxillary content (builder & scanner) is given their own files.
If using the library's provided build scripts:

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@ -2,7 +2,6 @@
#define GEN_DEFINE_LIBRARY_CODE_CONSTANTS
#define GEN_ENFORCE_STRONG_CODE_TYPES
#define GEN_EXPOSE_BACKEND
#define GEN_C_LIKE_CPP 1
#include "gen.cpp"
#include "helpers/push_ignores.inline.hpp"

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@ -1,6 +1,5 @@
#define GEN_DEFINE_LIBRARY_CODE_CONSTANTS
#define GEN_ENFORCE_STRONG_CODE_TYPES
#define GEN_EXPOSE_BACKEND
#include "gen.cpp"
#include "helpers/push_ignores.inline.hpp"

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@ -15,3 +15,20 @@ If using the library's provided build scripts:
```ps1
.\build.ps1 <compiler> <debug or omit> unreal
```
## Notables
For the most part this follows the same conventions as `gen_segmented`.
This generator uses a separate enumeration definitions for the following:
* [AttributeTokens.csv](./enums/AttributeTokens.csv) : Add your own <MODULE>_API attributes, etc here that are encountered within the Engine.
* [ESpecifier.csv](./enums/ESpecifier.csv) : Adds the `FORCEINLINE` & `FORCEINLINE_DEBUGGABLE` specfiers (additions are made as they are encountered)
* [ETokType.csv](./enums/ETokType.csv) : Same modifications as ESpecifier.csv.
A separate [parser_case_macros.cpp](./components/parser_case_macros.cpp) is used to accomodate for the new forceinline specifiers.
The `global` macro the library uses is redefined as an empty substiution.
The expected usage of this library is to put into into a third-party plugin module to then use either in editor modules or in shell script done in some stage of hot-reloading or building the Unreal Engine or Project.

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@ -13,8 +13,8 @@ BraceCurly_Open, "{"
BraceCurly_Close, "}"
BraceSquare_Open, "["
BraceSquare_Close, "]"
Capture_Start, "("
Capture_End, ")"
Paren_Open, "("
Paren_Close, ")"
Comment, "__comment__"
Comment_End, "__comment_end__"
Comment_Start, "__comment_start__"

1 Invalid __invalid__
13 BraceCurly_Close }
14 BraceSquare_Open [
15 BraceSquare_Close ]
16 Capture_Start Paren_Open (
17 Capture_End Paren_Close )
18 Comment __comment__
19 Comment_End __comment_end__
20 Comment_Start __comment_start__

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@ -1,6 +1,5 @@
#define GEN_DEFINE_LIBRARY_CODE_CONSTANTS
#define GEN_ENFORCE_STRONG_CODE_TYPES
#define GEN_EXPOSE_BACKEND
#include "gen.cpp"
#include "helpers/push_ignores.inline.hpp"