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Progress & proofing of docs
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@ -43,7 +43,7 @@ struct AST_Pragma;
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struct AST_PreprocessCond;
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struct AST_PreprocessCond;
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struct AST_Specifiers;
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struct AST_Specifiers;
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#if GEN_EXECUTION_EXPRESSION_SUPPORT
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#ifdef GEN_EXECUTION_EXPRESSION_SUPPORT
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struct AST_Expr;
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struct AST_Expr;
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struct AST_Expr_Assign;
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struct AST_Expr_Assign;
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struct AST_Expr_Alignof;
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struct AST_Expr_Alignof;
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@ -140,7 +140,7 @@ struct CodePragma;
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struct CodeSpecifiers;
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struct CodeSpecifiers;
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#endif
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#endif
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#if GEN_EXECUTION_EXPRESSION_SUPPORT
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#ifdef GEN_EXECUTION_EXPRESSION_SUPPORT
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#if GEN_COMPILER_C
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#if GEN_COMPILER_C
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typedef AST_Expr* CodeExpr;
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typedef AST_Expr* CodeExpr;
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@ -247,7 +247,7 @@ struct AST_Exec
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};
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};
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static_assert( sizeof(AST_Exec) == sizeof(AST), "ERROR: AST_Exec is not the same size as AST");
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static_assert( sizeof(AST_Exec) == sizeof(AST), "ERROR: AST_Exec is not the same size as AST");
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#if GEN_EXECUTION_EXPRESSION_SUPPORT
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#ifdef GEN_EXECUTION_EXPRESSION_SUPPORT
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struct AST_Expr
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struct AST_Expr
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{
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{
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union {
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union {
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@ -750,7 +750,7 @@ struct AST_Specifiers
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};
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};
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static_assert( sizeof(AST_Specifiers) == sizeof(AST), "ERROR: AST_Specifier is not the same size as AST");
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static_assert( sizeof(AST_Specifiers) == sizeof(AST), "ERROR: AST_Specifier is not the same size as AST");
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#if GEN_EXECUTION_EXPRESSION_SUPPORT
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#ifdef GEN_EXECUTION_EXPRESSION_SUPPORT
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struct AST_Stmt
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struct AST_Stmt
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{
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{
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union {
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union {
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@ -362,7 +362,7 @@ struct CodeExec
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AST_Exec *ast;
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AST_Exec *ast;
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};
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};
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#if GEN_EXECUTION_EXPRESSION_SUPPORT
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#ifdef GEN_EXECUTION_EXPRESSION_SUPPORT
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struct CodeExpr
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struct CodeExpr
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{
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{
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#if ! GEN_C_LIKE_CPP
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#if ! GEN_C_LIKE_CPP
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@ -689,7 +689,7 @@ struct CodePreprocessCond
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AST_PreprocessCond* ast;
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AST_PreprocessCond* ast;
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};
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};
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#if GEN_EXECUTION_EXPRESSION_SUPPORT
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#ifdef GEN_EXECUTION_EXPRESSION_SUPPORT
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struct CodeStmt
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struct CodeStmt
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{
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{
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#if ! GEN_C_LIKE_CPP
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#if ! GEN_C_LIKE_CPP
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@ -26,7 +26,7 @@ This means that the typename entry for the parameter AST would be either:
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***Concepts and Constraints are not supported***
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***Concepts and Constraints are not supported***
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Its a [todo](https://github.com/Ed94/gencpp/issues/21)
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Its a [todo](https://github.com/Ed94/gencpp/issues/21)
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### Feature Macros:
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### Feature Macros
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* `GEN_DEFINE_ATTRIBUTE_TOKENS` : Allows user to define their own attribute macros for use in parsing.
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* `GEN_DEFINE_ATTRIBUTE_TOKENS` : Allows user to define their own attribute macros for use in parsing.
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* This can be generated using base.cpp.
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* This can be generated using base.cpp.
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@ -40,6 +40,18 @@ Its a [todo](https://github.com/Ed94/gencpp/issues/21)
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### The Data & Interface
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### The Data & Interface
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The library's persistent state is managed tracked by a context struct: `global Context* _ctx;` defined within [static_data.cpp](../base/components/static_data.cpp)
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https://github.com/Ed94/gencpp/blob/967a044637f1615c709cb723dc61118fcc08dcdb/base/components/interface.hpp#L39-L97
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The interface for the context:
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* `init`: Initializtion
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* `deinit`: De-initialization.
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* `reset`: Clears the allocations, but doesn't free the memoery, then calls `init()` on `_ctx` again.
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* `get_context`: Retreive the currently tracked context.
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* `set_context`: Swap out the current tracked context.
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As mentioned in root readme, the user is provided Code objects by calling the constructor's functions to generate them or find existing matches.
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As mentioned in root readme, the user is provided Code objects by calling the constructor's functions to generate them or find existing matches.
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The AST is managed by the library and provided to the user via its interface.
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The AST is managed by the library and provided to the user via its interface.
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@ -47,12 +59,12 @@ However, the user may specifiy memory configuration.
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[Data layout of AST struct (Subject to heavily change with upcoming todos)](../base/components/ast.hpp#L396-461)
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[Data layout of AST struct (Subject to heavily change with upcoming todos)](../base/components/ast.hpp#L396-461)
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https://github.com/Ed94/gencpp/blob/eea4ebf5c40d5d87baa465abfb1be30845b2377e/base/components/ast.hpp#L396-L461
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https://github.com/Ed94/gencpp/blob/967a044637f1615c709cb723dc61118fcc08dcdb/base/components/ast.hpp#L369-L435
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*`StringCahced` is a typedef for `Str` (a string slice), to denote it is an interned string*
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*`StringCahced` is a typedef for `Str` (a string slice), to denote it is an interned string*
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*`CodeType` is enum taggin the type of code. Has an underlying type of `u32`*
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*`CodeType` is enum taggin the type of code. Has an underlying type of `u32`*
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*`OperatorT` is a typedef for `EOperator::Type` which has an underlying type of `u32`*
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*`OperatorT` is a typedef for `EOperator::Type` which has an underlying type of `u32`*
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*`StrBuilder` is the dynamically allocated string type for the library*
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*`StrBuilder` is the dynamically allocating string builder type for the library*
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AST widths are setup to be AST_POD_Size.
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AST widths are setup to be AST_POD_Size.
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The width dictates how much the static array can hold before it must give way to using an allocated array:
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The width dictates how much the static array can hold before it must give way to using an allocated array:
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@ -117,6 +129,7 @@ The following CodeTypes are used which the user may optionally use strong typing
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* CodeClass
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* CodeClass
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* CodeConstructor
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* CodeConstructor
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* CodeDefine
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* CodeDefine
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* CodeDefineParams
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* CodeDestructor
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* CodeDestructor
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* CodeEnum
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* CodeEnum
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* CodeExec
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* CodeExec
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@ -127,7 +140,7 @@ The following CodeTypes are used which the user may optionally use strong typing
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* CodeModule
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* CodeModule
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* CodeNS
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* CodeNS
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* CodeOperator
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* CodeOperator
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* CodeOpCast
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* CodeOpCast : User defined member operator conversion
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* CodeParams : Has support for `for : range` iterating across parameters.
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* CodeParams : Has support for `for : range` iterating across parameters.
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* CodePreprocessCond
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* CodePreprocessCond
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* CodePragma
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* CodePragma
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@ -140,11 +153,15 @@ The following CodeTypes are used which the user may optionally use strong typing
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* CodeUsing
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* CodeUsing
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* CodeVar
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* CodeVar
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Each Code boy has an associated "filtered AST" with the naming convention: `AST_<CodeName>`
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Each `struct Code<Name>` has an associated "filtered AST" with the naming convention: `AST_<CodeName>`
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Unrelated fields of the AST for that node type are omitted and only necessary padding members are defined otherwise.
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Unrelated fields of the AST for that node type are omitted and only necessary padding members are defined otherwise.
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Retrieving a raw version of the ast can be done using the `raw()` function defined in each AST.
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## There are three sets of interfaces for Code AST generation the library provides
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For the interface related to these code types see:
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* [ast.hpp](../base/components/ast.hpp): Under the region pragma `Code C-Interface`
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* [code_types.hpp](../base/components/code_types.hpp): Under the region pragma `Code C-Interface`. Additional functionlity for c++ will be within the struct definitions or at the end of the file.
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## There are three categories of interfaces for Code AST generation & reflection
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* Upfront
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* Upfront
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* Parsing
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* Parsing
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@ -164,6 +181,7 @@ Interface :``
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* def_class
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* def_class
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* def_constructor
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* def_constructor
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* def_define
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* def_define
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* def_define_params
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* def_destructor
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* def_destructor
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* def_enum
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* def_enum
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* def_execution
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* def_execution
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@ -218,6 +236,27 @@ Code <name>
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```
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```
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All optional parmeters are defined within `struct Opts_def_<functon name>`. This was done to setup a [macro trick](https://x.com/vkrajacic/status/1749816169736073295) for default optional parameers in the C library:
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```cpp
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struct gen_Opts_def_struct
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{
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gen_CodeBody body;
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gen_CodeTypename parent;
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gen_AccessSpec parent_access;
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gen_CodeAttributes attributes;
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gen_CodeTypename* interfaces;
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gen_s32 num_interfaces;
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gen_ModuleFlag mflags;
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};
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typedef struct gen_Opts_def_struct gen_Opts_def_struct;
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GEN_API gen_CodeClass gen_def__struct( gen_Str name, gen_Opts_def_struct opts GEN_PARAM_DEFAULT );
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#define gen_def_struct( name, ... ) gen_def__struct( name, ( gen_Opts_def_struct ) { __VA_ARGS__ } )
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```
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In the C++ library, the `def_<funtion name>` is not wrapped in a macro.
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When using the body functions, its recommended to use the args macro to auto determine the number of arguments for the varadic:
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When using the body functions, its recommended to use the args macro to auto determine the number of arguments for the varadic:
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```cpp
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```cpp
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@ -228,7 +267,7 @@ def_global_body( 3, ht_entry, array_ht_entry, hashtable );
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```
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```
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If a more incremental approach is desired for the body ASTs, `Code def_body( CodeT type )` can be used to create an empty body.
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If a more incremental approach is desired for the body ASTs, `Code def_body( CodeT type )` can be used to create an empty body.
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When the members have been populated use: `AST::validate_body` to verify that the members are valid entires for that type.
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When the members have been populated use: `code_validate_body` to verify that the members are valid entires for that type.
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### Parse construction
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### Parse construction
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@ -244,7 +283,6 @@ Interface :
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* parse_export_body
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* parse_export_body
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* parse_extern_link
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* parse_extern_link
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* parse_friend
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* parse_friend
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* Purposefully are only support forward declares with this constructor.
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* parse_function
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* parse_function
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* parse_global_body
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* parse_global_body
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* parse_namespace
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* parse_namespace
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@ -91,7 +91,7 @@ C_Expression _Generic( selector_arg, a_type_expr_pair, ... ) {
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The first `arg` of _Generic behaves as the "controlling expression" or the expression that resolves to a type which will dictate which of the following expressions provided after to `_Generic` will be resolved as the one used inline for the implemenation.
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The first `arg` of _Generic behaves as the "controlling expression" or the expression that resolves to a type which will dictate which of the following expressions provided after to `_Generic` will be resolved as the one used inline for the implemenation.
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For this library's purposes we'll be using the functional macro equivalent *(if there is an excpetion I'll link it at the end fo the section)*:
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For this library's purposes we'll be using the functional macro equivalent *(if there is an exception I'll link it at the end of this section)*:
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```c
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```c
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#define macro_that_uses_selector_arg_for_resolving_a_fucntion( selecting_exp) \
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#define macro_that_uses_selector_arg_for_resolving_a_fucntion( selecting_exp) \
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@ -142,4 +142,4 @@ So for any given templated container interface. Expect the follwoing (taken stra
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`GEN_RESOLVED_FUNCTION_CALL` is an empty define, its just to indicate that its intended to expand to a function call.
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`GEN_RESOLVED_FUNCTION_CALL` is an empty define, its just to indicate that its intended to expand to a function call.
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To see the thea actual macro definitions used: [generic_macros.h](./components/generic_macros.h) has them. They'll be injected right after the usual macros are positioned in the header file.
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To see the the actual macro definitions used - see: [generic_macros.h](./components/generic_macros.h). They'll be injected right after the usual macros in the generated header file.
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@ -800,6 +800,9 @@ do \
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b32 found = ignore_preprocess_cond_block(txt("GEN_INTELLISENSE_DIRECTIVES"), entry, parsed_ast, ast );
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b32 found = ignore_preprocess_cond_block(txt("GEN_INTELLISENSE_DIRECTIVES"), entry, parsed_ast, ast );
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if (found) break;
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if (found) break;
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found = ignore_preprocess_cond_block(txt("GEN_EXECUTION_EXPRESSION_SUPPORT"), entry, parsed_ast, ast );
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if (found) break;
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ast.append(entry);
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ast.append(entry);
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}
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}
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break;
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break;
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@ -978,6 +981,9 @@ R"(#define AST_ArrSpecs_Cap \
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found = ignore_preprocess_cond_block(txt("GEN_INTELLISENSE_DIRECTIVES"), entry, parsed_code_types, code_types );
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found = ignore_preprocess_cond_block(txt("GEN_INTELLISENSE_DIRECTIVES"), entry, parsed_code_types, code_types );
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if (found) break;
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if (found) break;
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found = ignore_preprocess_cond_block(txt("GEN_EXECUTION_EXPRESSION_SUPPORT"), entry, parsed_code_types, code_types);
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if (found) break;
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code_types.append(entry);
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code_types.append(entry);
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}
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}
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break;
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break;
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@ -1072,7 +1078,10 @@ R"(#define <interface_name>( code ) _Generic( (code), \
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case CT_Preprocess_If:
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case CT_Preprocess_If:
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case CT_Preprocess_IfDef:
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case CT_Preprocess_IfDef:
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{
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{
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b32 found = ignore_preprocess_cond_block(txt("GEN_INTELLISENSE_DIRECTIVES"), entry, parsed_code_types, code_types );
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b32 found = ignore_preprocess_cond_block(txt("GEN_INTELLISENSE_DIRECTIVES"), entry, parsed_ast_types, ast_types );
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if (found) break;
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found = ignore_preprocess_cond_block(txt("GEN_EXECUTION_EXPRESSION_SUPPORT"), entry, parsed_ast_types, ast_types);
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if (found) break;
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if (found) break;
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ast_types.append(entry);
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ast_types.append(entry);
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@ -1128,6 +1137,9 @@ R"(#define <interface_name>( code ) _Generic( (code), \
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found = ignore_preprocess_cond_block(txt("GEN_COMPILER_CPP"), entry, parsed_interface, interface);
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found = ignore_preprocess_cond_block(txt("GEN_COMPILER_CPP"), entry, parsed_interface, interface);
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if (found) break;
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if (found) break;
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found = ignore_preprocess_cond_block(txt("0"), entry, parsed_interface, interface);
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if (found) break;
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interface.append(entry);
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interface.append(entry);
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}
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}
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break;
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break;
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@ -420,6 +420,8 @@ word make_code, gen_make_code
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namespace set_allocator_, gen_set_allocator_
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namespace set_allocator_, gen_set_allocator_
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namespace Opts_, gen_Opts_
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namespace def_, gen_def_
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namespace def_, gen_def_
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namespace parse_, gen_parse_
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namespace parse_, gen_parse_
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namespace token_, gen_token_
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namespace token_, gen_token_
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