* 🐞️ isSameType: Add a base case (#8)
* Core
- Added a TODO where we are meant to insert the fallback check in `isSameType(Type t1, Type t2)`
* TypeChecker
- Added backported `isSameType(Type 1, Type t2)` fix for #114
* 🐞️ Functions: Return position enforcement (#6)
* Parser
- Added a TODO in `wantsBody == true` case in `parseFuncDef()` to check for the return keyword's position
* Parser
- Added a check in `parseFuncDef()` which, is a `ReturnStmt` is found, then crash the parser if it is found anywhere besides the last statement
* Test cases
- Added test cases to test the `return` statement position enforcement
* 🧠 Feature: Direct function calls (#11)
* Test cases
- Added `simple_direct_func_call.t` to test direct function calls
* Test cases
- Removed tabs which broke lexing
* AST nodes
- `FunctionCall` now has the ability to be marked as statement-level by calling `makeStatementLevel()`, this can then be queried later via `isStatementLevelFuncCall()`
* Parser
- Statement-level function calls were never actually returned, resulting in `null` being returned by `parseName()` - this has now been fixed.
- Along with this we now "mark" this `FunctionCall` AST node as statement-level when it occurs in `parseName()`
* Instruction
- Allow `FuncCallInstr` to be makred as statement-level and queired much in the same manner as its corresponding AST-node/parser-node `FunctionCall`
* Dependency
- Added support for `DNode` generation in `generalPass()` for `FunctionCall` AST nodes
* TypeChecker
- Handle `FunctionCall`s differently in terms of code generation dependent on whether or not rhe call is within an expression of statement-level
* DGen
- Handle statement-level function calls (`FuncCallInstr`s) differently by tacking on an additional `";"` to the emit string
* - Added `simple_direct_func_call.t` to GitHub pipeline
* DGen
- Added instrumentation for semantic code generation for `simple_function_recursion_factorial.t`
- Added TODO for future `simple_func_call_direct.t`
Test cases
- Added `simple_function_recursion_factorial.t` to test recursion
Pipelines
- Added `simple_function_recursion_factorial.t` to `emit` stage
* DGen
- Made `if` an `else if` - this wouldn't of affected anything but just to be correct
* DGen
- Added semantic code generation instrumentation for test case `simple_direct_func_call.t`
Test cases
- Updated test case `simple_direct_func_call.t`
* 🧠 Feature: Meta-programming engine (#10)
* Parser
- Added new interface `Cloneable`
* Symbols
- Added new `Statement`-based type: `Macro` to support `Macro`(s)
* MetaProcessor
- Added the `MetaProcessor`
TypeChecker
- Added the `MetaProcessor` instance to the `TypeChecker`, it will be instantiated upon the `TypeChecker`'s construction and later have its `.process()` method called as the first call in `beginCheck()`
* TypedEntity
- Added a `setType(string)` method to update the internal `type` field
* MetaProcessor
- Added a type-re-writing facility via `typeRewrite(TypedEntity)` which will re-write the types such as `size_t`, `ssize_t` and so forth
Test cases
- Added a test case `meta/types.t` which tests this
* MetaProcessor
- Updated the constructor to only take in an instance of the `TypeChecker`
- Updated the `process()` method to take in a `Container` such that it can be used recursively
- Commented code
- Added a recursive call to `process(Container)` when `curStmt` is a kind-of `Container` (this ensures that we reach the `VariableParameter`s of `Function` (die to them making up the `Statement[]` of `Function` type)
- Removed unused `cmp` import `std.string`
- Added type-rewrite for `ssize_t` -> `long`
TypeChecker
- Updated the constructor call to `MetaProcessor` to use its new API
- Updated call to `process()` to now be `process(modulle)`
Test cases
- Updated `types.t` to test re-writing of the `Function`'s parameters
* MetaProcessor
- Added another FIXME
* Mcro
- Added interface `MTypeRewritable` to represent any AST node which has a `setType(string)` and `string getType()` method for rewriting- Added `Sizeof` which is a kind-of `IntegerLiteral`
Data
- Made `TypedEntity` implement the `MTypeRewritable` interface
Expressions
- Made `IntegerLiteral` non-final such that we can inherit from it
- Added a final `setNumber(string)` method to `NumberLiteral` to update the literal
MetaProcessor
- The type rewriting mechanism now operates on `MTypeRewritable` AST nodes
- Work has begun on `sizeOf_Literalize(Sizeof)` which is to determine the `Type` of the `Sizeof` statement and then calculate the memory width and update its literal (as it is a kind-of `NunberLiteral`) to said size
Test cases
- Added `meta/sizeof.t` to test `sizeof` functionality
* Mcro
- Added interface type `MStatementSearchable`
* Mcro
- Redefined `MStatementSearchable`
- Added `MStatementReplaceable`
- Added `Repr` (a kind-of `Expression`) which will be used as an example to test out the aforementioned two interfaces
* MStatementSearchable
- Added method `search(TypeInfo_Class clazzType)` which uses a `TypeInfo_Class` to search for all types matching that (and which are sub-types of `Statement` and then adds these to a list and returns it in the form of `Statement[]`
* MStatementReplaceable
- Implemented `replace(Statement thiz, Statement that)` which replaces the `Statement` in the first argument with that of the `Statement` in the second argument
* MStatementSearchable
- Added documentation for `search(TypeInfo_Class)` method
* Mcro
- Made `Repr` implement `MStatementSearchable`
- Added new interface `MCloneable` to represent PNode's which are deeply-cloneable
* Data
- Made `DiscardStatement` searchabe via implementing `MStatementSearchable`
- Added a stub override for implementing `MStatementReplaceable` in `DiscardStatement`
* Mcro
- Updated `MStatementReplaceable` to have its `replace(Statement, Statement)` method return a boolean `true` if the replacement was successful, else `false`
* Parsing
- Added the ability to parse a `Repr` statement
Check
- Added `GENERIC_TYPE_DECLARE` and `REPR` as new `SymbolType`(s)
Data
- `DiscardStatement` now implements the `bool replace(Statement, Statement)` method
MetaProcessor
- Added the ability to replace statements that occur within any _other_ statements which implement `MStatementSearchable` and `MStatementReplaceable`
Test cases
- Added `meta/simple_meta_replace.t` to test all of this
Diagrams
- Added diagram on how the meta system works
* MetaProcessor
- Removed unused `replace` method
* MetaProcessor
- Accept a new argument to the `MetaProcessor(TypeChecker)` constructor indicating whether or not the `MetaProcessor` is enabled or not
TypeChecker
- Enable the `MetaProcessor`
* Mcro
- Removed `Sizeof`, we will let it be parsed as a normal `FunctionCall` and then inspect in `MetaProcessor`
* MetaProcessor
- Disabled `sizeOf_Literalize` for now
- Search for all `FunctionCall` statements in `process(Container)`
* MetaProcessor
- Removed old code for testing `MStatementSearchable` and `MStatementReplaceable`
- Added note that we will have to investigate a recursive `MTypeRewritable` to be able to support things like `sizeof(size_t)`
- Implemented module-level `sizeof(<ident_type>)` support
- Added `Number`-kind of types support to `sizeOf_Literalize`(string)`
Containers (`Module`)
- Added `MStatementSearchable` and `MStatementReplaceable` support to `Module` container type
Data
- Added `MStatementSearchable` and `MStatementReplaceable` support to `Variable`
- Added `MStatementSearchable` and `MStatementReplaceable` support to `VariableAssignment`
- Work-in-progress for adding `MStatementSearchable` and `MStatementReplaceable` support to `FunctionCall`
- Added a note to return `false` in `DiscardStatement` if the statement to be replaced is us (the `DiscardSTatement`) ourselves
Test cases
- Updated the `meta/sizeof.t` test case
* Containers
- Inherit from `MStatementSearchable` and `MStatementReplaceable`
- Removed direct interface inheritance of `MStatementSearchable, MStatementReplaceable` and `MStatementReplaceable`, rely on `Container` now
* Struct
- Implemented the `search` method for `MStatementSearchable`
- Implemented the `replace` method for `MStatementReplaceable`
Clazz
- Implemented the `search` method for `MStatementSearchable`
- Implemented the `replace` method for `MStatementReplaceable`
BinaryOperatorExpression
- Implemented the `search` method for `MStatementSearchable`
- Implemented the `replace` method for `MStatementReplaceable`
Function
- Implemented the `search` method for `MStatementSearchable`
- Implemented the `replace` method for `MStatementReplaceable`
Variable
- Fixed the `replace` method implementation which had a bug that would never replace the node `VariableAssignment` inside of it
VariableAssignmentStdAlone
- Implemented the `search` method for `MStatementSearchable`
- Implemented the `replace` method for `MStatementReplaceable`
IfStatement
- Implemented the `search` method for `MStatementSearchable`
- Implemented the `replace` method for `MStatementReplaceable`
WhileLoop
- Implemented the `search` method for `MStatementSearchable`
- Implemented the `replace` method for `MStatementReplaceable`
ForLoop
- Implemented the `search` method for `MStatementSearchable`
- Implemented the `replace` method for `MStatementReplaceable`
Branch
- Implemented the `search` method for `MStatementSearchable`
- Implemented the `replace` method for `MStatementReplaceable`
* MetaProcessor
- Added a future TODO for occurence of certain types that are alises (i.e. `size_t` appearing in a expression context like `sizeof(size_t)`
- Now that all `Container`-based types are `MStatementReplaceable` we no longer need this check
* MetaProcessor
- Removed `break` which caused only one `sizeof()` function call to be replaced, we should have been looping over each `FunctionCall` found with `search` and then replacing ech that had a name of `sizeof` with a `NumberLiteral` expression
- Moved all type alias replacement code into a new method; `doTypeAlias(Container, Statement)`
- Added some rudiementary support for replacing any `IdentExpression` containing `size_t` with `uint`
IdentExpression
- Made it `MStatementSearchable` and `MStatementReplaceable`
Test cases
- Updated test case `meta/sizeof.t` to test the `sizeof(<expr>)` AST node in the `MetaProcessor`
Documentation
- Added diagram showing the `MStatementSearchable` and `MStatementReplaceable` in action
* Compiler
- If the T compiler was built on `X86` then set the maximum width to 4 bytes
- If the T compiler was built on `X86_64` then set the maximum width to 8 bytes
- Pass in the `Compiler` instance to the `TypeChecker` in `doTypeCheck()`
TypeChecker
- Added `Compiler` field and now accept it in constructor
- If just single parameter constructor then pass in `null` as the `Compiler` instance
- Added `getCompiler()` to get the instance
MetaProcessor
- Extract the `CompilerConfiguration` via the `TypeChecker`'s `getCompiler()`
- Implemented `getSystemType(string)` which will map `size_t`/`ssize_t` to the correct maximum width'd type your system supports via the `types:max_width` config entry
* CompilerConfiguration
- Added `defaultConfig()`
* Compiler
- Removed `defaultConfig()`
- During construction call `CompilerConfiguration.defaultConfig()` in order to generate the default config
- Pass the config into `TypeChecker` in `doTypeCheck()`
* TypeChecker
- No longer store a field for the `Compiler` but rather store a field for the `CompilerConfiguration`
- Removed single parameter constructor for `TypeChecker`
- Constructor now uses the default `CompilerConfiguration` if not specified; therefore fixing the issue with unit tests failing
MetaProcessor
- Extract the compiler configuration via `tc.getConfig()`
- Updated `typeRewrite(MTypeRewritable)` to use `getSystemType(string)` to lookup concrete types for `size_t`/`ssize_t`
- `doTypeAlias(Container, Statement)` now uses `getSsstemType(string)` to lookup the concrete types for alises such as `size_t`/`ssize_t`
* MetaProcessor
- Implemented `isSystemType(string)` which returns `true` if the provided type is a system type alias (such as `size_t` or `ssize_t`), `false` otherwise
* MetaProcessor
- Implemented `isTypeAlias(string)` which determines if the given type is a type alias.
- Implemented `getConcreteType(string typeAlias)` which transforms the type alias into its
concrete type; this method incorporates defensive programming in that it will only apply the transformation IF
the provided type alias is infact a type alias, otherwise it performs an identity transformation
and returns the "alias" untouched.
* TypeChecker
- Clean up
* MetaProcessor
- `doTypeAlias(Container, Statement)` now makes use of `isTypeAlias(string)` and `getConcreteType(string)`
* - `typeRewrite(MTypeRewritable)` now makes use of `isTypeAlias(string)` and `getConcreteType(string)`
* MetaProcessor
- Cleaned up
* MetaProcessor
- Removed unused import
* MetaProcessor
- Removed now-completed TODO
* MetaProcessor
- Updated comment before call to `doTypeAlias(Container, Statement)`
* Containers
- `Module` now applies re-parenting in its `replace()`
- `Struct` now applies re-parenting in its `replace()`
- `Clazz` now applies re-parenting in its `replace()`
Data
- `Function` now applies re-parenting in its `replace()`
* Test cases
- Added `simple_template_type_def.t` for future test cases
* - Updated `.gitignore`
* Check
- Removed `SymbolType.REPR` which was used for testing early versions of the `MetaProcessor`
* Mcro
- Removed `Repr` which was used for testing in the early stages of `MetaProcessor`
* Check
- Removed reference to `SymbolType.REPR` in checker
* Parser
- Removed reference to `SymbolType.REPR` and `Repr` which was used for testing the `MetaProcessor` in early stages
* 🧹️🧼️ Cleanup: Clean up series 1 (#16)
* ⚡️ Feature: Lexer Interface cleanup (#14)
* LexerInterface
Defined the lexer interface
* Parser
- Fixed import for `Token` class
- Removed the token management fields such as `tokens`, `currentToken` and `tokenPtr` as these are now replaced by our `LexerInterface`, `lexer` field which manages this all for us
- Removed constructor which accepts a `Token[]`, now onyl accept a `LexerInterface`
- Removed `nextToken()`, `hasTokens()`, `getCurrentToken()`, `previousToken()`, `setCursor(ulong)` and `getCursor()`.
- The above now are called via the `lexer` instance
Parser (unit tests)
- Migrated to new `LexerInterface`+`BasicLexer` system
- Hoisted out common imports for unit tests into a `version(unittest)`
TypeChecker (unittests)
- Hoisted out common imports for unit tests into a `version(unittest)`
- Migrated to new `LexerInterface`+`BasicLexer` system
LexerInterface
- Moved to new `lexer.core` package
- Documented module and class
Commands
- Fixed imports for the (now) `BasicLexer`
- Fixed imports for the (now) `lexer.core` package
Compiler
- Fixed imports for the (now) `BasicLexer`
- Use `LexerInterface` instead of `Lexer`
- The `doLex()` method now uses an instance of `BasicLexer` and then downcasts to quickly call `performLex()` in order to tokenize and make them available
- The `doParse()` method now takes in an instance of `LexerInterface` rather than `Token[]`
BasicLexer (previously Lexer)
- Moved to the `lexer.kinds` package
- Now implements `LexerInterface`
- Documented module and class
- Documented the `LexerInterface` methods
Exceptions
- Moved to the `lexer.core` package
- Fixed import of `Token` class
- Now uses `LexerInterface`
Core.Lexer.Package
- Documented package module
Tokens
- Moved to the `lexer.core` package
- Documented module and class
Check
- Fixed import for `Token`
- Fixed import for `BasicLexer`
* `core.lexer` (package)
- Documented all public imports
* Exceptions
- Documented the module
- Documented `LexerError` and its members
- Documented `LexerException`, its members too
* Tokens
- Documented the fields (using proper syntax)
- Documented constructor and methods
* BasicLexer
- Removed now-completed TODO
- Added (for clarity) `override` keywords to the `getLine()` and `getColumn()` methods
- Moved `getLine()`, `getColumn()` and `getTokens()` altoghether
- Made `getTokens()` override-marked
- Documented `getTokens()`
* Check
- Removed weird TODO that makes no sense
- Documented some of the members of `SymbolType`
* Check
- Documented a few more enum members of `SymbolType`
- Fixed documentation (and added a TODO) for the `SymbolType.LE_SYMBOL`
* Check
- Documented a few more enum members of `SymbolType`
* Check
- Documented `isType(string)`
- Added a TODO for `isTYpe(string)` to "Check if below is even used
- Documented `isPathIdentifier(string)`
* Check
- Updated description of `isPathIdentifier(string)` to note it can contain underscores
- Documented isIdentifier(string)`
- Updated `SymbolType.IDENT_TYPE` to acknowledge underscores
- Documented `isAccessor(Token token)` and `isModifier(Token)`
* Check
- Documented `isIdentifier_NoDot(Token tokenIn)`, `isIdentifier_Dot(Token tokenIn)`, `isNumericLiteral(string token)`
- Removed uneeded import of `BasicLexer`
- Moved import to the top of file
* Check
- Documented `getSymbolType(Token tokenIn)`, `isMathOp(Token token)`, `isBinaryOp(Token token)`
* Check
- Documented the `symbols.check` module
* Builtins
- Properly documented `getBuiltInType(TypeChecker, string)`
* Builtins
- Documented module
* Typing (core)
- Documented module
- Documented all members
* Exceptions (lexer)
- Fixed documentation missing parameters
* Check
- Make comments docs/ddox compatible
* BasicLexer
- Fixed parameter name in documentation
* BasixLexer
- Fixed formatting in documentation for class
* Typing (core)
- Documented all remaining class members and fields
* - Update `.gitignore`
* Commands
- Handle `Exception` as well, I know DGen emits this on CC error so we should DO this to make tests more accurate
* Commands
- Fixed variable usage
* Instructions
- Made `BinOpInstr`'s left-hand side instruction of type `Value` and right-hand side instruction of type `Value` too
- Doesn't make sense to use anything but `Value`-based instructions for it
* Containers
- Removed redundant import that causes compilation failure on `ldc2`
* 🐞️ Functions: Expressionless return and enforcing requirement (#7)
* Parser
- Added a TODO in `parseReturn()` for issue #113
* Data
- The `ReturnStmt` now has a default constructor which is for cases where one doesn't want to provide an expression (for expressionless returns)
Parser
- `parseReturn()` now supports expressionless returns
Test cases
- Added `simple_return_expressionless.t` to test expressionless return statement
* Data
- Added a method `hasReturnExpression()` to `ReturnStmt` which returns `true` if the return statement has an expression attached, `false` otherwise
* Dependency
- When processing a `ReturnStmt` only run do dependency generation for the return statement's expression IF it has one
* Instruction
- Made `ReturnInstruction` have a constructor which takes in no `Value` instruction (intended for return expression)
- Added a `hasReturnExpInstr()` to `ReturnInstruction`such that during typechecking/codegen we can check for it
* TypeChecker
- Added a TODO regarding the missing typechecking for `ReturnStmt` typechecking. Added notes on how we'd go about this.
- Fixed crash due to assuming there was always an expression on the stack that could be popped off for generating a `ReturnInstruction` (this is not the case when the return statement is expressionless)
* Tests
- Added a typecheck test for `simple_return_expressionless.t`
* TypeChecker
- Update `isSameType(Type t1, Type t2)` to check if the actual types of both `Type` objects are the same as a last resort
- Added a `NOTE` comment on how `isSameType(Type t1, Type t2)` is implemented
- Added typechecking code for `ReturnStmt` and updated the code generation with it. We now do the following:
1. We extract the container of the `ReturnStmt` and cast it to a `Function`; if it is not a `Function` we throw an error because you cannot have a `ReturnStmt` appear in a non-`Function` container
2. We extract the function's name relative to it container (the function's container) for use of it in error messages
3. Next, we get the return type of the function and do the following:
a. If the return type is `void`
i. If the return has an expression we throw an error
ii. If the return has NO expression we pass typechecking and generate the `ReturnInstr`
b. If the return type is non-`void`
i. If the return has an expression we ensure that its type matches that of the function's return type and generate the `ReturnInstr`
ii. If the return has NO expression we raise an exception as one is expected
4. If we pass and got here then we set the `ReturnInstr`'s context and `addInstrB(returnInstr)`
* Test cases
- Added test case `simple_return_type.t` which is here to test our return type checking
* - Updated `.gitignore`
* Parser
- Use `lexer` for all `Token`-based operations
* Resolution
- Implemented `findContainerOfType(TypeInfo_Class, Statement)` which, given a type-of `Container` and a starting `Statement` (AST node) this will swim upwards to try and find the first matching parent of which is of the given type (exactly, not kind-of).
* TypeChecker
- Fixed the `Function` `Container` resolution for the `ReturnStmt` to now find the nearest `parent` in its parenthood tree which is a `Function`, extract the `Function`'s name and then use that where needed
* 🐞 Bugfix: Ensure that typed functions contain a return statement (#17)
* Parser
- Added TODO for checking for non-`void` function's return statements
* Parser
- If a `ReturnStmt` is not found after calling `parseFuncDef()`
* Parser
- Added a FIXME comment that needs to be completed soon
* Parser
- Only check that a `ReturnStmt` is present in a function definition when `wantsBody` is true ELSE we'd expect it for `efunc` `extern`'d statements
- Fixed a unit test which had a missing `return <expr>`
- Added a unit test which tests for a function definition with a body with a non-void return type that it DOES fail
- Removed two now-completed TODOs and FIXMEs
Test cases
- Fixed test case in `typecheck/simple_function_call.t` to now include the required `return <expr>` statements
* 🐞 Bugfix: Recursively check for return statemen tprescence (#19)
* Parsing
- Added a TODO for where the fix needs to be
* Parser
- Implemented `findOfType(TypeInfo_Class statementType, Container from)` which given a type of `Statement` to look for and a `Container` of which to search with in. This method will recursively search down the given container and look for any statements which are a kind-of (`isBaseOf`) the requested type. it will return an array of `Statement` (`Statement[]`) of the matches.
- Implemented `existsWithin(TypeInfo_Class statementType, Container from)` given a type of `Statement` to look for and a `Container` of which to search with in. This method will recursively search down the given container and look for any statements which are a kind-of (`isBaseOf`) the requested type. It will return `true` if any matches are found.
- We now will recursively explore the `Function`'s body statements in search of a `ReturnStmt`
* Parser (unit tests)
- Updated unit test which was meant to check for a greater number of body statements of the `Function` at question
* Parser (unit tests)
- Because this causes `expect(string)` to be called (this unit test) we must catch `TError` as that is what `expect(string)` throws
- We should update this (see #147)
* Tets cases
- Added missing `return` to function `banana` in `simple_functions.t` test case
* Test cases
- Fixed `simple_function_decls.t` to include the required (but missing) `return` statement
* 🐞 Bugfix: expect(string) should throw ParserException atleast (#20)
* Parser
- Removed commented-out code
* Parser
- Removed `isUnitTest` variable and how `expect(string)` relies on it
* Parser
- Now throw a new `ParserException` instead of a `TError` when calling `expect(string)`
* Parser
- Made `expect(string)` not static
* TypeChecker
- Implemented `expect(string)` which throws a `TypeCheckerException` in a similar fashion to `Parser`'s `expect(string)`
* Dependency
- Implemented `expect(string)` which throws a `DependencyException` in a similar fashion to `Parser`'s `expect(string)`
Exceptions (dependency)
- Added enum member `GENERAL_ERROR` to `DependencyError`
* Parser (unit tests)
- Made more specific
* Parser
- Removed now-completed TODO
* Data
- Removed unused type `ArgumentList`
* Expressions
- Made the `Expression` class abstract
- Removed irrelevant TODOs and method
- Removed uneeded constructor
VariableExpression
- Removed unused junk
* 🧠 Feature/Meta: Cloneable (round 1) (#21)
* Data
- Moved AST manipulation imports to the top
- Made `VariableAssignment` cloneable
- Made `Variable` cloneable
* Data
- When trying to `clone()` an `Expression`, do a runtime type check to check if we can (else `null` is used)
* Expressions
- Moved AST-manipulation related import to the top
* Expressions
- `BinaryOperatorExpression` now overrides `clone()` from `MCloneable`
* Expressions
- `IntegerLiteral` now implements `MCloneable`
* Expressions
- `CastedExpression` now implements `clone()` for `MCloneable`
* Containers
- Moved all AST maniuplation-related imports to the top
* Containers
- Made `Struct` support `MCloneable`'s `clone()` method
* Data
- Only clone the `VariableAssignment` if the `Variable` has one
* Containers (unit test)
- Added test which tests the `clone()` on a `Struct`
* DGen
- If `typeTransform(Type)` fails then the debug text should be in the error coloring
* DGen
- If `typeTransform(Type)` is called on an unknown type then print out the type in the error message asx well
* Mcro
- Made `MCloneable`'s `clone()` require a `Container` argument of which the final cloned `Statement` must parent-itself to
* Expressions
- `BinaryOperatorExpression`, `CastedExpression` and `IntegerLiteral` now implements the new `MCloneable` API
* Expressions
- Added notes about where parenting must manually be done
* Data
- `Variable` and `VariableAssignment` now uses the new `MCloneable` API
* Containers
- `Struct`'s `MCloenable` API adhered to
* Containers
- Fixed `clone(Container)` implementation for `Struct` whereby it would not parent the newly created copy
* TypeChecker
- Added a TODO regarding the `ClassStaticNode` handling
* TypeCheck
- Undo incorrect FIXME
* CodeEmitter
- Added a new parameter to `transform(Instruction)` (now `transform(Instruction, Object)`. `customRules` is an `Object` to be interpreted by the underlying emitter which can change how certain transformations are done when it is in a certain state
DGen
- Uses new `CodeEmitter` API
* Revert "CodeEmitter"
This reverts commit 75372ee132.
* DGen
- Added ability to flag whether symbol mapping should occur or not
- By default enable symbol mapping
* Variable
- When calling `replace(Statement, Statement)`, if we hit the `variableAssignment` replacement check, first check and ensure it is not null`, try
* 🧠️ Feature: Universal coercion and type enforcer (#9)
* TypeChecker
- Added `bool isSameType2(Value v1, Value v2, bool attemptCoercion = false)` for future implementation of universal coercion as per #115
* TypeChecker
- Renamed `isSameType2` to `typeEnforce`
- Updated `typeEnforce`'s default parameter documentation from `false` to `attemptCoercion` (as it should have been in the beginning)
* TypeCheckerException
- Save the `TypecheckError` coming in as `errType` and make it available via `getError()`
TypemMismatchException
- Save the original (expected) and attempted types and make them available via `getExpectedType()` and `getATtemptedType()` respectively
* TypeChecker
- Updated `typeEnforce` from taking in `Value v1, Value v2, bool` to `Type t1, Value v2, bool`.
- `typeEnforce()` will now extract the `Type` of `Value v2` and call `isSameType(t1, t2)`, if that fails and coercion is allowed then it is attempted, however if that fails then it causes an exception to be thrown. In the case coercion is not allowed, then a `TypeMismatchException` is thrown
Unit tests
- Tested the new `typeEnforce(Type t1, Value v2, bool)` and it seems to work, both a case of failing matching (coercion disallowed) and working coercion (coercion allowed)
* TypeChecker
- Documented existing unittest for `typeEnforce(Type, Value, bool)`
- Added new unit test for `typeEnforce(Type, Value, bool)` which tests when the types ARE the same
* TypeChecker
- Cleaned up `typeEnforce(Type, Value, bool)`
* TypeChecker
- Added a work-in-progress unit test to test how I would use `typeEnforce(Type t1, Value v2, bool coercion = false)` in practice
- Added TODOs in `attemptCoercion(Type, Type)` where I must add support
* TypeChecker
- Finished the unit test testing out the usage for `typeEnforce(Type, Value, bool coerce = false)`
- Added TODOs to `attemptCoercion(Type, Value)` for the changes required to it
* TypeChecker
- Removed incorrect TODOs from `attemptCoerce(Type, Value)` and updated the message when the coercion fails
Unit tests
- Updated first unit test for `typeEnforce()` to test failing coercion on a non-`LiteralValue` instruction
- Added a unit test where `typeEnforce()` WILL pass as it coerces a `LiteralValue` instruction
* Exceptions (`typechecker`)
- Added new exception type `CoercionException` to be thrown whenever a coercion cannot take place.
* TypeChecker
- Ensure that `attemptCoercion(Type, Value)` only throws instances of `CoercionException`
* Unit tests
- Fixed failing-coercion check by catching the correct exception when it fails `CoercionException` instead of `TypeMismatchException`)
* TypeChecker
- Added documentation for `isSameType(Type t1, Type t2)`
* TypeChecker
- Updated documentation for `isCoercibleRange(Type, Value)`
- Updated `attemptCoercion(Type, Value)` with new documentation and renamed parameters
* Unit tests (typechecker)
- Added comments
* TypeChecker
- Removed now-completed TODO in `typeEnforce(Type t1, Value v2, bool allowCoercion = false)`
* TypeChecker
- Removed unused `typeStatus` variable in `typeEnforce(Type, Value, bool)`
* TypeChecker
- Variable declarations (with assignments) now use the `typeEnforce()` method with coercion allowed in order to do the type checking and coercion changes
- Added a comment explaining a certain branch of `attemptCoercion(Type, Value)`
* TypeChecker
- If the to-type and provided-type are both numerical then use a size-based test
Test cases
- Added two test cases which test `typeEnforce()` on incoming `Value`-based instructions as part of variable declarations
* Test cases
- Fixed negative test case - it MUST have an error and that should be seen as a pass
* TypeChecker (unit tests)
- Disabled invalid unit test (marked for re-writing)
- I should re-write the below. It is now incorrect as I DO ALLOW coercion of non literal-based instructions now - so it fails because it is using an older specification of TLang
* TypeChecker
- Migrated the type checking of standalone variable assignments to using `typeEnforce()`
Test cases
- Added positive and negative test cases
* - Updated `.gitignore`
* Feature/type enforcer cast instr emit (#13)
* TypeChecker
- `typeEnforce()` now will not change the type of `Value`-based instruction `v2` but rather return, on successful coercion set a `ref`-based argument to a new instance of a `CastedValueInstruction`, if coercion fails or was disabled and types mismatched then an exeption is thrown as normal.
- If the types are an exact same match, a-la `isSameType(Type, Type)`, then this `ref` value is set to `v2` (makes programming easy) else we would have no way to know
- `attemptCoerce()` now, to go with the above changes to `typeEnforce()`, returns a `CatsedValueInstruction` to the to-type on successful coercion, else an exception is thrown as usual
- Updated two cases of `typeEnforce()` usage to the new method signature, also now add a sanity check assertion that the types now DO match as they should
* TypeChecker
- We need not set it again, look the value we use when we CALL `typeEnforce()` is that of the `fromInstruction` and if no changes occur we still have it, it is fine - if it changes via the call to `typeEnforce()` via the `ref` based argument thne same old
- No need for us to set it here in the event of no changes, we are writing back the exact same Instruction/object-reference
* TypeChecker (unit tests)
- Upgraded to the new `typeEnforcer()` method signature
* TypeChecker
- Improved documentation for `typeEnforce()`
* TypeChecker
- Added TODO regarding pointer coercion with integers in `Pointer + Integer` case (for pointer airthmetic)
* TypeChecker
- Added a new branch which currently throws an exception as it is unimplememted
- This branch (above) is in `attemptCoercion()` and is to handle the coercion of `Integer` to `Pointer` for pointer arithmetic
- When doing the typechecking/codegen for `BinaryOp`, disable the pointer coercion call to `attemptPointerAriehmeticCoercion()`, instead now make calls in those cases they apply, to `typeEnforce()`
- The above stuff is still broken, not yet implemented.
* TypeChecker
- Cannot use cast as that can return false positives for an all pointer case as all `Pointer`s are `Integer`s
- Added `isPointerType(Type)` to check the above
- Added then also `isIntegralTypeButNotPointer(Type)` which checks for an `Integer` type but excluding if it is a `Pointer`
- Updated the checks in the `BinaryOperator` branch of `typeCheckThing(DNode)` to do this
* TypeChecker
- Need to do the `Pointer` checks first in `attemptCoercion(Type, Value)`
* TypeChecker
- `attemptCoercion(Type, Value)` now returns a `CastedValueInstruction` to cast the `Integer` type to the `Pointer` type
* TypeCHecker
- Catch mis use of type enforcement by using `isIntegralTypeButNotPointer(Type)` and isPointerType`(Type)` for the previous commit
* TypeChecker
- Refresh the types after the potential calls to `typeEnforce(..., ..., ..., ...)`
* Pipeline
- Use `set -e` for `simple_pointer.t` test in emit stage
* Pipelines (emit stage)
- Previous compilation may have succeeded, meaning ./tlang.out never gets updated and exits fine with 0, but we only use the last commands exit status to check for a pass for a test.
- By setting this if COMPILATION fails then we exit with its code and the test status is set via that
* Pipelines
- Removed the `set -e` code as the correct `Exception` now causes a non-zero exit code from the changes made in `varass_vardec_dependency`
* DGen
- Added notice for issue #140
* TypeChecker
- Made `isIntegralTypeButNotPointer(Type)` public
- Made `isPointerType(Type)` public
* Instructions
- `CastedValueInstruction` now is unrelaxed by default but can be set (tis aids in how it can be emitted later for issue #140)
* DGen
- Added some checks for certain conditions whereby pointer coercion requires relaxing the casted operands (coerced operands)
* DGen
- Relax `CastedValueInstruction`(s) when appropriate in `BinaryOpInstr` handling code
- Removed panics
* DGen
- Added relaxation support to the code emitting code for `CastedValueInstruction`
* DGen
- make debug messages for when relaxation occurs for `CastedValueInstruction` emitting more clear
* TypeChecker
- Implemented `biggerOfTheTwo(Integer, Integer)` which determines the biggest of the two `Integer`-based types and returns that one.
* TypeChecker
- Fixed incorrect variable name in `biggerOfTheTwo(Integer, Integer)`
* TypeChecker
- Throw an error in the case where a `BinaryOperatorExpression` occurs with non-`Integer`-based instructions (at least for now)
* TypeChecker
- If both types are `Integral` (but not `Pointer`) then smaller coerces to bigger, if they however are equal then signed coerces to unsigned
* TypeChecker
- Removed now irrelevant comment
* TypeChecker
- Don't throw exception here, rather let the `isSameType(Type, Type)` check handle that
- We still keep the warning we print about missing cases implementation-wise
* TypeChecker
- Fixed explanation
* TypeChecker
- Marked related issue
* TypeChecker
- Implemented ` isStackArrayType(Type typeIn)`
- WIP: Added a check for handling `StackArray -> Pointer` coercion to `attemptCoercion(Type, Value)`
* TypeChecker
- `attemptCoercion(Type, Value)` will now ensure firstly that the `StackArray`'s component type matches that of the `Pointer`'s referred type, if not throw an exception, if so, then return a `CastedValueInstruction`
* TypeChecker
- Print out a debug message when attempting to coerce a `StackArray` to a `Pointer`
- Fixed the error message thrown when a `StackArray` could not be coerced to a `Pointer` due to the component type != ptr's referred type
- `FunctionCall` handling now has the `canCoerceStackArray()` code disabled and uses the `typeEnforce()` method
* TypeChecker
- Type checking code for `FunctionCall`
* TypeCheck
- Completed TODO comment
* TypeChecker
- Added a TODO
* TypeChecker
- Added FIXME where the `typeEnforce()` call need to be made for the `ReturnStmt`'s return expression's type to match or be checked-against the containing `Function`'s
* TypeChecker
- `ReturnStmt` now uses `typeEnforce()`
* Test cases
- Added two new checks for checking the return type of a function and matching a `ReturnStmt`'s expression's type to it
* TypeChecker
- Removed assertion check, rather let the exception thrown handle the error
- Only after we know the finally-parenting `Container` is a `Function` (should we reference `funcContainer`
* Test cases
- Removed explicit cast from `simple_function_recursion_factorial.t`
* TypeChecker
- If we have a `LiteralValue` and a non-`LiteralValue` then coerce the `LiteralValue` towards the non`-LiteralValue` via `typeEnforce()`
- This should allow the correct range checking of literal values within the range of the to-type and not require annoying explicit casts
* Test cases
- Removed now-unneeded explicit casts on literal values in `simple_function_recursion_factorial.t`
* TypeChecker
- Added comment describing the process used
- Removed now-completed TODO
* TypeChecker
- Removed some dead code
- Removed now-completed FIXME/TODO
* TypeChecker
- Removed old type checking code for variable declarations with assignments
- Removed old type checking code for standalone variable assignments
* Dub
- Upgraded `jcli` to version `0.25.0-beta.2`
* Dub
- Upgtraded package `jcli` to version `0.25.0-beta.3`
* - Try using latest version of `dmd`
* Parser
- Added ability for `parseName()` to recognize array types
- Added array type handling to `parseTypedDeclaration()`
- Removed unneeded `derefCount` and comment in `parseTypedDeclaration()`
Check
- Added new symbol types `OBRACKET` and `CBRACKET`
* Tets cases
- We will now be using `simple_arrays2.t` as our testing bench for array support
* Dependency
- When a variable declaration has a kind-of type we are unaware of then print out an error message before asserting `false`
* Builtins
- `getBuiltInType(TypeChecker, string)` will now return a `Pointer` object for arrays of which the type was `<componentType>[]` (non-stack bound) as effectively they are pointers with a different syntax -doing it here means that it is transparent and typechecking, code gen and emit will just see a pointer type which makes life a lot easier
* Builtins
- Added information about the current bug faced in issue #81 (third sub-issue)
* Test cases
- Updated test case `simple_arrays2.t` to show case bug sub-issue 3 in issue #81
* Builtins
- Removed seperate handling of `<componentType>[]` and incorporated it into the pointer check, now we have fixed sub-issue 3 of issue #81
Test cases
- Updated test case `simple_arrays2.t` to showcase the aforementioned fix
* Builtins
- Updated TODO
* Builtins
- Removed comment as now fixed
* Array
- Added `getComponentType()` method which will return the array's element type
* Dependency
- When processing the `Array` type which is now to be seen as a stack-based array (fixed size), error out in processing it during variable declarations
* Builtins
- Added `bool isStackArray(string)` in order to check if a given type string is designated as a stack-array type or not
- `Type getBuiltInType(TypeChecker, string)` now can generate the `StackArray` type including the component type and the size of the stack allocation
Parser
- Added support to`parseTypedDeclaration` to be able to parse stack-based array types
- Added terminator `]` to `parseExpression()`
DGen
- Added stack-based array type transformation support to `string typeTransform(Type)`
- Added transformation support for stack-based arrays for the `VariableDeclaration` instruction
StackArray
- Renamed `Array` type to `StackArray`
` The `StackArray` type now has an `arraySize` field and is included in the constructor's paremeters
- Added a `getAllocatedSize()` method to retrieve the `arraySize` field
Dependency
- Temporarily enabled the `StackArray` type in dependency processing for `VariableDeclarations` such that we can continue through the pipeline
Test cases
- Updated `simple_arrays.t` to test stack-based array types
* Tets cases
- Added new test case for testing (later) multi-dimensional stack-arrays
* Parser
- Working on adding array index assignment support
Test cases
- Added test case to test array assignments with
* Parser
- We can now detect when infact we are doing an array-indexed assignment and when not, we then flip` arrayIndexing` to `true` if that is the case and ensure that `=` SymbolType.ASSIGN is not triggering the varaible-declaration-with-assignment but rather eters a different branch based on this boolean
- Set the identifier being assigned to (in the array indexing case) to the `type` with the `[]...` stripped
Notes
- Added a TODO file `wip.txt` with notes about what is to be done for adding full array support
* Parser
- Handle the case whereby `SymbolType.ASSIGN` or `SymbolType.IDENT_TYPE` is not found by throwing an error
* Parser
- Moved logic for array assignments into the branch for it (deferred it)
* Data
- Added new work-in-progress parser node type `ArrayAssignment`
Parser
- Added TODO about the type of returned parse node needing to be updated down the line
Notes
- Updated `wip.txt` with more thoughts
* Expressions
- Added new parse node (a sub-type of `Expression`) for representing array indexing; `ArrayIndex`
Data
- Fixed compilation error caused by missing semi-colon
* Parser
- Added support for array accesses/indexing in `parseExpression()`
- Added a token-rerun mechanism that lets us replay the needed tokens which needed to be looked ahead in order to determine an array access was about to occur
* Parser
- Removed now-completed TODO relating to array accesses in `parseExpression()`
* Parser
- Added right-hand side expression parsing for array assignments
Test cases
- Updated test case to test both array expressions on the left-hand side of an assignment and as a free-standing expression on the right hand side
Data
- Implemeneted `ArrayAssignment` which is to be used for assigning into arrays
* Instruction
- Added new instruction for indexing into arrays, a new `Value`-type instruction called `ArrayIndexInstruction`
* DGen
- Handle `ArrayIndexInstruction` which is for whenever you index into a point-based array (an expression like `myArray[i]` is now being supported in emit (first steps))
* Instructions
- Added a new instruction type, `StackArrayINdexInstruction`, which is used to know when we are indexing into a stack-based array rather than a pointer-based array (just to be able to disambiguate between the two)
- Added a work-in-progress type `StackArrayIndexAssignmentInstruction` which will be used for assigning to stack arrays at a given index
* Instructions
- Added implementation for `StackArrayIndexAssignmentInstruction` which represents the assignment of some `Value` instruction to a stack-based array (indicated by the `arrayName` string field) at the index indicated by the provided `Value` instruction
* DGen
- Added a stub emitter for `ArrayIndexInstruction` (pointer-based array indexing)
- Added a stub emitter for `StackArrayINdexInstruction` (stack-array based array indexing)
* INstructions
- Added `getArrayName()`, `getIndexInstr()` and `getAssignedValue()` to `StackArrayIndexAssignmentInstruction`
* Instructions
- Added `ArrayIndexAssignmentInstruction` which is intended to be used for when one wants to assign into a pointer-based array
- It embeds a `Value` instruction which is what is to be assigned and then an `ArrayIndexInstruction` representing the base of the poiinter-based array (base address) coupled with an "index" (offset)
- Added a `toString()` override for `StackArrayIndexAssignmentInstruction`
* Test cases
- Added `complex_stack_arrays1.t`
- This tests a stack array of a fixed size of `int[]` (basically `int*`) and assigneing into it
* Test cases
- Added `simple_arrays4.t` which makes an `int[]` (which is an `int*`) and then assignes into it at `i` whilst referring to itself at `i` and doing a binary operation
* Test cases
- Added `simple_stack_arrays2.t` which tests a stack array of a fixed size and then assigns into it a value
* Test cases
- Added `simple_stack_arrays4.t` which just tests assigning to a stack array of a fixed size BUT referring to said stack array itself as part of the assignment expression
* DGen
- Removed TODO comment for `ArrayIndexInstruction` transformation branch
- Added a description for when the `ArrayIndexInstruction` branch is activated for a transformation
- Implemented transformation for `ArrayIndexInstruction`
- Added comment on when `ArrayIndexAssignmentInstruction` activates
- Implemented transformation for `ArrayIndexAssignmentInstruction`
- Added comment for when the `StackArrayIndexInstruction` branch activates
- Implemented transformation for `StackArrayIndexInstruction`
- Added comment for when `StackArrayIndexAssignmentInstruction` branch activates
- Implemented transformation for `StackArrayIndexAssignmentInstruction`
* Dependency
- Added dependency node generation for the `ArrayIndex`
- This will pool the `ArrayIndex` parser-node
- This will then set the context of the parser-node to the current context
- The index expression will be depended upon
- The indexed expression (the entity being indexed) will be depended upon
---
- Added dependency generation for `ArrayAssignment`
- The `ArrayAssignment` parser node will be pooled
- The `ArrayAssignment` will have its context set to the current context
- The assigned expression will be depended upon
- The entity being indexed will be depended upon
- The index expression will be depended upon
* Parser
- Added a branch to `parseName()` which handles array assignments's semicolon consumption and token cursor movement to the next token
- Updated `parseTypedDeclaration()` to return an object of type `Statement` rather than `TypedEntity`
- Disabled the intentional `assert(false)` when handling array assignments
- Assign the generated `ArrayAssignment` to the `generated` variable
- Updated `parseExtern()` to cast to `TypedEntity` to ensure that the `Statement` returned is of that sub-type (added an assertion to then check this fact)
* Typechecker/Codegen
- Implemented `isStackArray(Value)` which checks if the given `Value` instruction is a `FetchValueVar`, then extracts the `Variable` being referred to in said instruction and checks if its declared type is that of `StackArray`
- Implemented code generation for `ArrayAssignment`
- Implemented code generation for `ArrayIndex`
* Test cases
- WIP: Added `simple_stack_array_coerce.t` as we want to add coercion for this now
* Typecheck
- Added rudimentary check for checking if an argument is a stack array, and if the parameter (to a function call) is a pointer and if so then returns whether they have matching component types in a new function named `canCoerceStackArray(Type, Type)`
* Typecheck
- Fixed `canCoerceStackArray(Type, Type)` to actually coerce the first type first into a pointer type (coercing the stack array's component type to `<compType>*`) and THEN apply the `isSameType(Type, Type)` check
* Typecheck
- Hoisted up `canCoerceStackArray(Type, Type)` to the class-level of `TypeChecker`
- Removed debug prints from `canCoerceStackArray(Type, Type)`
- Added a TODO where the check should be done in the `FunctionCall` branch of the `DNode` processor
* TypeChecker
- Added a seperate check for function call `DNode` processing which now checks if we can coerce the stack-array-based argument to the pointer-based type parameter
Notes
- Emit now fails as we haven't implement an emit for this case, so we need to do that.
- Also, should we change the type of what is being passed in - perhaps that actually makes sense here - we haven't fully coerced it actually
* TypeChecker
- Updated `canCoerceStackArray(Type, Type)` to now take in `canCoerceStackArray(Type, Type, ref Type)` to set the newly created coerced type
- Fixed bug whereby if the coercion succeeded we didn't actually add to the list of evaluation-instructions in the `FuncCallInstr` object, hence there would be a `null` Instruction object appearing in the code emit phase.
- Added some NOTEs which we can clean up this code using
* TypeChecker
- Cleaned up commented-out code
* Added CI/CD test for 'simple_stack_array_coerce.t'
* Added CI/CD test for 'complex_stack_arrays1.t'
* Added CI/CD semantic tests (WIP) for 'simple_stack_array_coerce.t' and 'complex_stack_arrays1.t'
* Added CI/CD semantic tests (WIP) for 'simple_arrays2.t' and 'simple_arrays4.t'
* Added CI/CD semantic tests (WIP) for 'simple_arrays2.t' and 'simple_arrays4.t'
* Added CI/CD semantic tests (WIP) for 'simple_arrays2.t' and 'simple_arrays4.t'
* Fixed filepath for test 'simple_arrays.t'
* Fixed typechecking tests for arrays
* DGen
- Added instrumentation for `simple_stack_array_coerce.t`
Test cases
- Updated `simple_stack_array_coerce.t` to update the array passed in a manner such that we can sum the two elements later, return it and assert to ensure it is set correctly
* Parser
- Had to ensure the old identifier code was removed too, was too early; therefore this now-dead code was removed
* Test cases
- Added this test (even though it is a bad test, the syntax ie wrong)
* Test cases
- Update `simple_stack_arrsys4.t` to return an `int` such that we can verify it works.
- Also added more tests to it.
DGen
- Added semantic test code generation for `simple_stack_arrays4.t`
CI
- Re-organised tests for semantics in emit for arrays into those "Which have semantic tests" and "those which don't (yet)"
- Added semantic/emit test for `simple_stack_arrays4.t`
* Test cases
- Updated `simple_arrays2.t` to test casting of complex array types
* Test cases
- Updated `complex_stack_arrays1.t`
* Test cases
- Added new test for testing pointer syntax; `simple_stack_array_coerce_ptr_syntax.t`
- FIXME: It is broken as we don't have the latest pointer code - that must still be finished
* Test cases
- Added test case `simple_stack_array_ceorce_wrong.t` where coercion must fail
* Test cases
- Added `simple_pointer_array_syntax.t` which should test the `int[] == int*` stuff
* DGen
- Made semantic test for `simple_pointer_array_syntax.t`
Test cases
- Added a test for `simple_pointer_array_syntax.t.t`
* Branding
- Added logo here
* Test cases
- Addes semantic code emit instrucmentation for `simple_stack_array_coerce_ptr_syntax.t`
* Pipelines
- Added test case for `source/tlang/testing/simple_stack_array_coerce_wrong.t` for typechecking phase
* Test cases
- Added test case `complex_stack_array_coerce.t`
* Test cases
- Added extensive positive test case `complex_stack_array_coerce_permutation_good.t` which has a lot of different ways to write `int**` (think `int*[]` etc)
- Added negative test cases `complex_stack_array_coerce_bad1.t`, `complex_stack_array_coerce_bad2.t` and `complex_stack_array_coerce_bad3.t`
* Make branches not identical
* Removed temporary file
* Typecheck
- Added `attemptPointerAriehmeticCoercion(Value, Value)`
* Typechecker
- Moved `attemptPointerAriehmeticCoercion(Value, Value)` to class-level and made privately accessible
* Test cases
- Added pointer arithmetic in the form of `*(ptr+0)` to `simple_pointer.t` to start testing it out
* Typechecker
- When handling `BinaryOperatorExpression` call `attemptPointerAriehmeticCoercion(Value, Value)` with both `(vLhsInstr, vRhsInstr)` before we call `vLhsInstr.getInstrType()` and `vRhsInstr.getInstrType()` before `isSameType(vLhsType, vRhsType)`. By doing so we attempt to coerce the types of both instructions if one is a pointer and another is an integer, else do nothing
* DGen
- When emitting for `PointerDereferenceAssignmentInstruction` we didn't wrap `<expr>` with `()`. So instead of `*(<expre>)` we got `*<expr>` which doesn't work if you're doing pointer arithmetic
* Test cases
- Added `simple_pointer_cast.t` to test casting (currently broken parsing-wise)
DGen
- Added a todo for semantic tests for the `simple_pointer_cast.t` test case
* Parser
- Added a TODO - we need a `parseType()`
* Test cases
- Removed `simple_cast_complex_type.t` as it is wrong, syntax wise
* Test cases
- Removed coercion usage, I am only testing the casting here (explicit)
* Test cases
- Removed `simple_pointer_cast.t` and replace it with `simple_pointer_cast_le.t` which casts the integer pointer to a byte pointer and sets the lowest significant byte (little endian hence at base of integer) to `2+2`
DGen
- Added semantic test for `simple_pointer_cast_le.t`
* Test cases
- Update `simple_pointer_cast_le.t` to do some pointer airthmetic at the byte-level of the 32-bit integer
DGen
- Updated the semantic test code generation for `simple_pointer_cast_le.t` to check for new values
* Added 'simple_pointer_cast_le.t' to Emit tests
* TypeChecker
- Update `isSameType(Type t1, Type t2)` to now handle pointers explicitly and in a recursive manner based on their referred types
- This check occurs before the `Integer` type check therefore following the rule of most specific types to least
* Test cases
- Added new test case `simple_pointer_malloc.t`
- Added semantic code test generation for `simple_pointer_malloc.t`
- Added `malloc_test.sh` to compile and generate `mem.o` from `mem.c` to link it then with `simple_pointer_malloc.t`
- Added `mem.c` external C file to generate the required `mem.o` for linking against `simple_pointer_malloc.t`
* Test cases
- Updated `malloc_test.sh` to look for any `brk()` system calls and fixed its interpreter path
* d
* Removed placeholder
* Parser
- Added a new default parameter to `parseTypedDeclaration()` which is `onlyType=false`. If one sets this to `true` then we will parse the type till the identifier (what would be it) but stopping on the identifier and returning a bogus `TypedEntity` with a fake name string but with the type string intact
- `parseCast()` now uses `parseTypedDeclaration(onlyType=true)` - this should help us when we want to cast for arrays or pointers (where all that logic is in `parseTypedDeclaration()`).
Test cases
- Added a complex `cast(<expr>)` with a pointer - this should work in upstream `pointers` branch
- File name is `simple_cast_complex_type.t`
- Corrected casted variable, was `literalInstr` but is meant to be `operandInstr`
- Added support for coercing signed literals in ranges for `byte`, `short`, `int` and `long`
- Added initial support for signed-literal coercion (e.g. `-1`)
- Set type for `UnaryOpInstr` (when doing `ADD` or `SUB` to the type of the embedded instruction (of type `Value` - this is soon to change in certain cases
Test cases
- Updated test case `simple_literals4.t`
- Updated test case `simple_literals5.t`
- Fixed module naming; autocomplete now works
Typing
- Added a TODO/NOTE comment
Parser
- Implemented range-based literal type encoding for integer literals
Check
- Switched from directly calling `isNumeric(string)` to our own `isNumericLiteral(string)` to check if a token is a `SymbolType.NUMBER_LITERAL`
Test cases
- Added new test case `simple_literals3.t`
- `TypeCheckerException` now inherits from `TError`
- `TypeCheckerException` now produces a neat error message using an enum `TypecheckError`
- Added new sub-class `TypeMismatchException` to be used when two types do not match
TypeChecker
- Hoisted out the coercion code into two methods, `isCoercibleRange` and `attemptCoercion`
- Make both variabel declarations (with assignments) and standlaone variable assignments call the `attemptCoercion()` method when the call to `isSameType(Type t1, Type t2)` returns `false`
Test cases
- Added new test case `simple_literals2.t`
- Split `NumberLiteral` into an abstract class with two sub-classes for `IntegerLiteral` and `FloatingLiteral` (floating-point literals)
Parser
- Use new `IntegerLiteral` and `FloatingLiteral` based on the type of token (whether a `.` is present or not)
TypeChecker/Codegen
- Updated code to check for `NumberLiteral` sub-type
Test cases
- Added `simple_literals.t` for testing `literal_encodings` branch
- Corrected import path for `compiler.lexer` -> `compiler.lexer.core`
Parser
- Corrected import path for `compiler.lexer` -> `compiler.lexer.core`
TypeChecker
- Corrected import path for `compiler.lexer` -> `compiler.lexer.core`
Compiler
- Moved configuration code outside of it
- Renamed to `compiler.core`
DGen
- Check for any object files to link in, if so append them to the `cc` call
Lexer
- Moved from `compiler.lexer` to `compiler.lexer.core`
Configuration
- Overhauled configuration system
Mapper
- Added definition to `SymbolMappingTechnique`
Command-line
- Migrated to new configuration system
- Migrated `SymbolMappingTechnique` to Mapper module
- Added support for specifying object fils to link in using the `-ll` flag`
Tests
- Added `file_io.c` for testing `simple_extern.t` with `extern_test.sh`
- Added `extern_test.sh` for testing `simple_extern.t`
- Added comments and removed TODO for now complete feature on `parseTypedDeclaration()`
Dependency
- Added support for external variable symbols to `transform()` for declarations, assignments and variable expressions
Test cases
- Updated extern evar test case to new symbol name that wouldn't clash
- Added assignment usage and expression usage
- Added `allowVarDec` and `allwFuncDef` to `parseTypedDeclaration()` as default arguments with `true` as their default values
- If `allowFuncDef` is true then parse a function
- If `allowVarDec` is `true` then allow a variable definition
- If `allowVarDec` is true but we have an assignment and `wantsBody` is false then throw an error
- NOTE: A fix for `parseTypedDeclaration()` is needed for this to work
Tests
- Updated `simple_extern.t` to include an `extern evar`
- Added new symbol types `EXTERN`, `EXTERN_EFUNC` and `EXTERN_EVAR` and related back-mappings
Parser
- `parseFuncDef()` now accepts a default argument (set to `true`) on whether to expect a body for a function or not, in the not case expect a semi-colon - this helps with extern support
- Likewise because `parseFuncDef(bool wantsBody = true)` is called by `parseTypedDeclaration()` we have added same argument to `parseTypedDeclaration(bool wantsBody = true)`
- Ensure we pass the parameter from `parseTypedDeclaration()` into `parseFuncDef(bool)` in function definition case
- Implemented `parseExtern()` for extern support
- `parse()` supports `SymbolType.EXTERN` now
Data
- Added `ExternStmt` to represent the parser node derived from a call to `parseExtern()`
- The `Entity` parser node type now has an `isExternal()` flag to know if the entity is marked for `extern` link time or TLang internal time (default)
Typechecker
- Implemented `processPseudoEntities(Container)` which loops through the given container and finds all extern statements and then extracts those nodes, parents them to the given container and marks them as external (pseudo-handling support)
- Added first call inside `beginCheck()` to be a call to `processPseudoEntities(modulle)`
Dependency
- Added useless no-op check for `ExternStmt` - it does nothing
DGen
- In `emitFunctionSignature()`, prepend the string `extern ` to the signatur if the given `Function` entity is marked as external (`isExternal()` is true)
- In `emitFunctionDefinitions()` do not emit a function body at all (or anything, no signature) if the `Function` is marked as external (`isExternal()` is true)
- Added entry point test for `simple_extern.t`
- VariableParameter's now have their `Type` object extracted and type transformed as part of function definitions.
Tests cases
- Updated `simple_cast.t` to test new typeTransform() usage on VariableParameter (as stated above)
- Implemented new instruction `CastedValueInstruction`
- Added import for `Type`
DGen
- Implemented primitive type casting code generation in `transform()`
- Added import for `Type` and `Primitive`
Parser
- Implemented `parseCast()` which is called by `parseExpression()`
Check
- Added new symbol type `SymbolType.CAST`
Expressions
- Implemented new expression type `CastedExpression`
Typechecker
- Implemented processing of `CastedExpression` in the expression section, along with correct type/instruction pushes and pops
Dependency
- Implemented dependency generation of `CastedExpression` in `expressionPass()`
Test cases
- Added test file `simple_cast.t`
- Added `getReferredType()` to `Pointer` to fetch the type of the data being referred to
Typechecker
- Unary operator `STAR` now will check popped type, ensure it is a pointer, then push the type of the referred-to data
Test cases
- Updated the `simple_pointer.t` test case to do pointer dereferencing
DGen
- Updated entry point testing code for the pointer test `simple_pointer.t`
- Added new instruction `DiscardInstruction`
DGen
- Added ability to transform `DiscardInstruction`
Parser
- Implemented `parseDiscard()`
- Removed a TODO
- Added a unittest testing the new `parseDiscard()`
- Typo fixes here and there in unittests
Data
- Added new parser node `DiscardStatement`
Typechecker
- Added codegen for `DiscardStatement` type
Dependency
- Added dependency processing for `DiscardStatement` type
Tests
- Added new test case `simple_discard.t`
- Added `getOperator()` and `getOperand()` methods to `UnaryOpInstr`
- Added new instruction `PointerDereferenceAssignmentInstruction` for pointer support
DGen
- Updated `transform()` to emit code for instruction type `UnaryOpInstr`
- Updated `transform()` to emit code for instruction type `PointerDereferenceAssignmentInstruction`
- Added testing emit code in `emitEntryPoint()` for pointer testing
Parser
- Updated `parseName()` to trigger `parseTypedDeclaration()` on occurene of `SymbolType.STAR` (for pointer type declarations)
- Added pointer-type support for function parameters (so far only single) in `parseFuncDef()`
- `parseExpression()` terminates on occurence of a single `=` (ASSIGN) operator
- Declaring of pointers of any depth implemented in `parseTypedDeclaration()`
- Added support for pointer dereferncing assignments with the addition of `parseDerefAssignment()`
- `parseStatement()` will now call `parseDerefAssignment()` on occurence of a `SymbolType.STAR`
- Added a unittest for testing pointers
- Finished unittest for for loops
Check
- Added backmapping for `SymbolType.ASSIGN` -> `&`
Data
- Added new parser node type `PointerDereferenceAssignment` for pointer support in the parser
TypeChecker
- Because function parameters are type che cked upon function call I had to add typechecking code for pointer support in the `UnaryOperatorExpression` case
- Added code generation support for `PointerDereferenceAssignment` type
Dependency
- Added support for `PointerDereferenceAssignment` type (pointer support) to `generalStatement()`
Tests
- Added pointer test `simple_pointer.t`
- Added a new instruction, `ForLoop`, which contains a pre-run Instruction and a `Branch` instruction, coupled with some flags
DGen
- Added a TODO for WhileLoops (we need to implement do-while loops)
- Implemented C code emitting in `emit()` for `ForLoop` instruction
Check
- Added missing back-mapping for `SymbolType.SMALLER_THAN`
Data
- Added new parser node type `ForLoop`
Parser
- Fixed typo in `parseWhile()`
- Implemented `parseDoWhile()` for do-while loops
- Implemented `parseFor()` for for-loops
- Implemented `parseStatement()` for singular statement parsing
- `parseStatement()` can now have the terminating symbol specified, defaults to `SymbolType.SEMICOLON`
- `parseName()` and `parseAssignment()` now also accept a terminating symbol parameter as per `parseStatement()`'s behavior
- `parseBody()` now makes multiple calls to `parseStatement()` for singular Statement parsing (dead code below still to be removed)
- Removed commented-out unittests
- Unittests that read from files now have the file source code embedded
- Added unit test for while loops, for-loops (unfinished) and some other smaller language constructs (roughly 70% coverage)
TypeChecker (CodeGen)
- Do-while loops will fail if used (for now)
- Added for-loop code generation
Dependency
- Implemented `generalStatement()` for statement processing
- `generalPass()` now makes calls to `generalStatement()`
Tests
- Added `simple_for_loops.t` to test for-loops
- Added `simple_do_while.t` to test do-while loops
- Added new instruction `WhileLoopInstruction`
DGen
- Added support for emitting while-loops (so far just plain while loops) (`WhileLoopInstruction` in `emit()`)
- Added baked-in entry point testing code for while loops in `emitEntryPoint()`
Parsing
- Added missing plumbing for while loop parser nodes in `parseWhile()`
Data
- Fixed some typos
- Removed dead/unused "deps" code from `Entity`
- Added some documentation comments
- Added `WhileLoop` type for parser nodes
TypeChecker
- Removed TODO in comment for already-implemented/completed if-statements
- Added while-loop code generation support (only while-loops, no do-whiles)
Dependency
- Added while-loop dependency generation support (so far only while-loops, no do-whiles)
Tests
- Added new test case `simple_while.t` for testing while loops
- Fixed missing flushing for issue #65 (see "Flushing fix ✅")
- Added unit test for flushing fix
VariableDeclaration (Instruction)
- Added support for the embedding of a VariableAssignmentInstr inside (added a getter too) (a part of issue #66)
- Conditional support for if statements: Added two new instructions (IfStatementInstruction and BranchInstruction). See issue #64
DGen
- Added depth increment/decrement on enter/leave scope of `transform()`
- Correct tabbing for nested if-statements using new method `genTabs(ulong)` (which uses the above mechanism). Makes code emitted for if statements (issue #64) look nicer.
- Updated VariableDeclarations (with assignments) handling in `transform()` in the manner similar to BinOpInstr (see issue #66)
- Added a TODO for formatting BinOpInstr's `transform()` a little more aesthetically nicer
- Added code emitting support for if statements (the `IfStatementInstruction` instruction) (see issue #64)
- Updated `emitEntryPoint()` to only emit testing C code for the correct input test file
Parser
- `parseIf()` now returns an instance of IfStatement which couples multiple `Branch` objects consisting of `Statement[]` and `Expression`
- Ensured that each `Statement` of the generated `Statement[]` from `parseBody()` for a given `Branch` is parented to said Branch using `parentToContainer()`
- Ensured each generated `Branch` in `Branch[]` is parented to the generated `IfStatement` using `parentToContainer()`
- `parseBody()` now adds to its `Statement[]` build-up array the generated `IfStatement` from the call to `parseIf()`
Check
- Added support for back-mapping `SymbolType.EQUALS` to `getCharacter(SymbolType)`
Data
- Added `Branch` parser node which is a Container for body statements (`Statement[]`)
- Added `IfStatement` parser node which is a Container of `Statement[]` which are actually `Branch[]`
TypeChecker
- Moved import for `reverse` to top of module
- Implemented `tailPopInstr()` method which will pop from the back of the `codeQueue` "scratchpad"
- Fixes handling of `StaticVariableDeclaration` and `VariableAssignmentNode` (fixes issue #66)
- Added handling for IfStatement entities (if statement support #64)
Resolution
- Added a debug statement to `resolveUp(Container, string)` to print out the container to lookup from and the name being looked up
Dependency
- Added a default `toString()` to the DNode class which prints `[DNode: <entity toString()]`
- Added a TODO and debug print related to issues #9
- Disabled InitScope.STATIC check for now as it caused issues with if statement parsing (probably due to VIRTUAL being default and therefore skipping if statment processing) - issue #69
- Cleaned up handling of Entity type `Variable` (variable declarations) - removed repeated code
- Undid the VarAss->(depends on)->VarDec, reverted back to VarDec->(depends on)->VarAss, fixed by #66 (and closes it and #11)
- Added support for `IfStatement` (if statements) in `generalPass(Container, Context)`
Test cases
- Added new test case testing nested if statements (`nested_conditions.t`)
- Added another test case for if statements, `simple_conditions.t`
- Added new instruction type `ReturnInstruction`
Data
- Adjusted return statement parser node weighting to 2 (makes it on the same level as normal body statements)
Dependency
- Added dependency generation for return statements
- Removed old commented-out code in the function-definition generation section of `generalPass()`
TypeChecker/Codegen
- Added code generation for return statements
DGen
- Added code emitting for return statements (`ReturnInstruction`)
Test cases
- Updated test case `simple_functions.t` to test return statements
- Cleaned up emit() method
- New test case hashes inserted for entryPoint test code
Test cases
- Updated `simple_function_decls.t` to be exactly that, ONLY declarations with basic bodies
- Migrated advanced function usage testing code to a new unit test: `simple_functions.t`
DGen
- Updated function parameter symbol lookup to use new `symbolLookup9Entity)` mechanism
Test cases
- Updated test case `simple_function_decls.t` to use arguments referencing for tests
- Bug fix (#57) - Undid hack (of #46) for Context setting of VariableStdAloneAssignments
- Bug fix (#54) in VariableExpression whereby global lookups failed because they used `resolveWithin()` and not `resolveBest()`
Resolution
- Implemented `generateNameBest(Entity)` which can generate the full absolute path of the given Entity
- Added debug statements to `isDescendant(Container, Entity)`
- Added a TODO for when isDescendant fails, the asserts should be removed and placed there
Mapper
- The `symbolLookup()` method now takes in only the Entity and provides a hash (by making use of `generateNameBest()`)
DGen
- Switched to using the new `symbolLookup(Entity)` in `transform()` wherever it was being used
Test cases
- Updated test case `simple_function_decls.t` to use a global variable reference in a VariableExpression to test the fix for #54
- Make the name of the function const and public for FuncCallInstr
CodeEmitter
- Added methods `getCursor()`, `getSelectedQueueLength()` and `getQueueLength()`
- Removed old queue-specific methods
DGen
- Added emitting for FuncCallInstr instruction (function call support)
- Now emit globals first BEFORE function definitions
- Added debug prints per instruction to know what instruction is currently being transform()'d
- After emitting sections add newlines between each to make for neater C code
- `emitEntryPoint()` now adds a test for `simple_function_decls.t` (This should be removed soon)
- Removed incorrect TODO in `finalize()`
Dependency
- Make the `nodePool` static, to ensure pooling carries over across multiple `DNodeGenerator` instances
- Fixed handling of function calls in `expressionPass()` - do NOT add a so-called `FunctionDefNode` (remember functions are defined by `addFuncDef()`)
- Set the Context of standalone variable assignments to the Context of the Variable entity representing the variable being assigned to
TypeChecker
- Assign the Context object stored in the `FunctionCall` statement to the `FuncCallInstr`
Test cases
- Updated test case `simple_function_decls.t`
- Added newline to release info print
- Fixed module docstring
Commands
- Added new command-line options: `syntaxcheck`, `typecheck`
- Added todo to `help` command
- Re-ordered commands for order of appearance in help text
Compiler
- Added docstring to `beginCompilation(string[])` function
Mapper
- Added debug print of the Container being used for the symbol lookup
CodeEmitter
- Re-worked CodeEmitter class to use a single so-called "selected queue"
- Added methods to move back and forth between said "selected queue", get the length, etc.
- Remove old queue-specific methods
DGen
- Use the new CodeEmitter "selected-queue" functionality
- Emit function definitions now supported
Exceptions
- Added this keyword
Check
- Added support for SymbolTYpe.OCURLY and SymbolType.CCURLY to `getCharacter(SymbolType)`
Data
- Added a `hasParams()` method to the Function entity type
TypeChecker
- Added support for emitting function definitions (required DNode.poes = [] (cleaning), codeQueue cleaning etc.)
- Added `getInitQueue()` method to make a copy of the current "scratchpad" `codeQueue`
- Build up a copy of the global queue now (make a copy similiar to what we did for `getInitQueue()` but inline)
- Added a debug print
Dependency
- Added a FIXME note for issue #46
- Added a TODO relating to `static DNode[] poes`
Test cases
- Added test case `simple_function_decls.t` to test function definition code emit
- Updated test case `simple_variables.t` to note that the T code generates invalid C code
README
- Build instructions now generate coverage files (`.lst`s)
- Updated link to documentation
- Implemented code emit for variable expressions (fetching their values)
----
Test cases
- Updated test case `simple_variables.t` to be able to test the newly implemented `FetchValueInstr` code emit
- Removed redundant imports
Dependency
- Set the context for the `VariableAssignmentStdAlone` entity
- Removed words that show I have the mental maturity of a 12 year old
----
Test cases
- Updated `simple_variables_decls_ass.t`
- Updated `simples_variables.t`
- All operations regarding moving through (iterating over) instructions are now to be done via the instructions provided by CodeEmitter, moveback, moveforward etc.
DGen
- Re-worked the system to use new CodeEmitter semantics
- Variable assignments in declarations are oneshot now which makes it more compact, semantically better and also valid C
---
Tests
- Updated the `simple_variables.t` test case to have many binary operations chained
- Added `finalize()` method, this is to be called whenever the emitting is done and a compiler is to be called on the code
DGen
- Implemented a gcc-based finalization method
- Added `emitEntryPoint()` to emit a main() function which is to be called in libc's `_start` symbol
VariableDeclaration
- Added note we may need a symbol table lookup system actually, rather than just a simple `symbolRename`
Compiler
- Call the `finalize()` method on the DGen code emitter
----
Test cases
- Added `simple_variables_only_decs.t` to test code generation
- The VarAssDNode processor on typechecker now adds to the back orf the code queue
- We removed all weird swapping code in typechecker
- Dependency wise, a variable declaration is depended-UPON its variable assignment which in turn a module depends ON.
- In the case of no assignments we simpyl make the module depend on the variable declaration dnode directly
- Added new test case to show this all
