Update gen.hpp and editor config

This commit is contained in:
Edward R. Gonzalez 2023-04-04 16:18:30 -04:00
parent eb4f95b84e
commit d93fd462e1
2 changed files with 75 additions and 32 deletions

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@ -18,3 +18,8 @@ indent_size = 4
[*.hpp] [*.hpp]
indent_style = tab indent_style = tab
indent_size = 4
[*.ps1]
indent_style = tab
indent_size = 4

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@ -6,33 +6,60 @@
AST type checking supports only a small subset of c++. AST type checking supports only a small subset of c++.
See the 'ECode' namespace and 'gen API' region to see what is supported. See the 'ECode' namespace and 'gen API' region to see what is supported.
WHAT IS NOT PROVIDED: ### *WHAT IS NOT PROVIDED*
* Macro or template generation : This library is to avoid those, adding support for them
adds unnecessary complexity.
If you desire define them outside the gen_time scopes.
* Modern c++ (STL library) features :
* Expression validation : Execution expressions are defined using the untyped string API.
: There is no parse API for validating expression (possibly will add in the future)
* Macro or template generation : This library is to avoid those, adding support for them adds unnecessary complexity.
If you desire define them outside the gen_time scopes.
* Expression validation : Execution expressions are defined using the untyped string API.
There is no parse API for validating expression (possibly will add in the future)
* Complete file parser DSL : This isn't like the unreal header tool. * Complete file parser DSL : This isn't like the unreal header tool.
Code injection to file or based off a file contents is not supported by the api. 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. However nothing is stopping you using the library for that purpose.
* Modern c++ (STL library) features
There are four different of construction of Code ast's the library provides: As mentioned in [Usage](#Usage), the user is provided Code objects by calling the interface procedures to generate them or find existing matches.
* Upfront construction
* Incremental construction The AST is managed by the library and provided the user via its interface prodedures.
* Parse construction
Notes:
* The allocator definitions used are exposed to the user incase they want to dictate memory usage*
* ASTs are wrapped for the user in a Code struct which essentially a warpper for a AST* type.
* Both AST and Code have member symbols but their data layout is enforced to be POD types.
Data layout of AST struct:
CodeT Type;
bool Readonly;
AST* Parent;
string Name;
string Comment;
union {
array(AST*) Entries;
string Content;
};
*`CodeT` is a typedef for `ECode::Type` which is the type of the enum.*
ASTs can be set to readonly by calling Code's lock() member function.
Adding comments is always available even if the AST is set to readonly.
### There are four sets of interfaces for Code AST generation the library provides
* Upfront
* Incremental
* Parsing
* Untyped * Untyped
Upfront Construction: ### Upfront Construction
All component ASTs must be previously constructed, and provided on creation of the code AST. All component ASTs must be previously constructed, and provided on creation of the code AST.
The construction will fail and return InvalidCode otherwise. The construction will fail and return InvalidCode otherwise.
API: Interface :
* def_forward_decl * def_forward_decl
* def_class * def_class
* def_global_body * def_global_body
* def_proc * def_proc
* def_proc_body * def_proc_body
@ -50,14 +77,19 @@
* def_using * def_using
* def_using_namespace * def_using_namespace
Incremental construction: ### Incremental construction
A Code ast is provided but only completed upfront if all components are provided.
Components are then added using the AST API for adding ASTs: A Code ast is provided but only completed upfront if all components are provided.
* code.add( AST* ) // Adds AST with validation. Components are then added using the AST API for adding ASTs:
* code.add_entry( AST* ) // Adds AST entry without validation.
* code.add_content( AST* ) // Adds AST string content without validation. * code.add( AST* ) // Adds AST with validation.
* code.add_entry( AST* ) // Adds AST entry without validation.
* code.add_content( AST* ) // Adds AST string content without validation.
Code ASTs may be explictly validated at anytime using Code's check() member function.
Interface :
API:
* make_forward_decl * make_forward_decl
* make_class * make_class
* make_global_body * make_global_body
@ -72,10 +104,12 @@
* make_using * make_using
* make_using_namespace * make_using_namespace
Parse construction: ### Parse construction
A string provided to the API is parsed for the intended language construct. A string provided to the API is parsed for the intended language construct.
API: Interface :
* parse_forward_decl * parse_forward_decl
* parse_class * parse_class
* parse_glboal_body * parse_glboal_body
@ -93,10 +127,12 @@
The parse API treats any execution scope definitions with no validation and are turned into untyped Code ASTs. The parse API treats any execution scope definitions with no validation and are turned into untyped Code ASTs.
This includes the assignmetn of variables; due to the library not yet supporting c/c++ expression parsing. This includes the assignmetn of variables; due to the library not yet supporting c/c++ expression parsing.
Untyped constructions: ### Untyped constructions
Code ASTs are constructed using unvalidated strings. Code ASTs are constructed using unvalidated strings.
API: Interface :
* untyped_str * untyped_str
* untyped_fmt * untyped_fmt
* untyped_token_fmt * untyped_token_fmt
@ -105,8 +141,10 @@
whatever context the content existed as an entry within. whatever context the content existed as an entry within.
Even though thse are not validated from somewhat correct c/c++ syntax or components, it doesn't mean that Even though thse are not validated from somewhat correct c/c++ syntax or components, it doesn't mean that
Untyped code can be added as any component of a Code AST: Untyped code can be added as any component of a Code AST:
* Untyped code cannot have children, thus there cannot be recursive injection this way.
* Untyped code can only be a child of a parent of body AST, or for values of an assignment. * Untyped code cannot have children, thus there cannot be recursive injection this way.
* Untyped code can only be a child of a parent of body AST, or for values of an assignment.
These restrictions help prevent abuse of untyped code to some extent. These restrictions help prevent abuse of untyped code to some extent.
*/ */