Work on scanning compiler directive lines.
Fix glitch in earlier change to parse-state.h.
Add ClassifyLine(), simplify some token sequence data lifetimes and interfaces.
Handle continued directives. Obey !DIR$ FIXED and FREE in prescanner.
Some refactoring of TokenSequence API, then support initial directives (FIXED, FREE, IGNORE_TKR).
Fix !DIR$ IGNORE_TKR syntax, manual was wrong.
Debugging directive scanning & parsing.
Profiling-directed speed-up - do not map cooked source locations to Provenance until a Message is emitted. Turn some non-nullable pointers into references.
Debugging.
Handle !DIR$ IVDEP too, it is in a test.
Accept directives in the execution part.
Original-commit: flang-compiler/f18@fb2ff367ec
Reviewed-on: https://github.com/flang-compiler/f18/pull/34
Tree-same-pre-rewrite: false
This replaces DEFINE_NESTED_ENUM_CLASS in parse-tree.h but works
similarly. "ENUM_CLASS(Foo, A, B, C)" defined enum class Foo with
enumerators A, B, C. It also defines an overloading of EnumToString
that converts enumerators to their string representation.
Change unparse.cc to adapt to this change.
Make use of ENUM_CLASS in attr.h and attr.cc.
Original-commit: flang-compiler/f18@c45b8f172a
Reviewed-on: https://github.com/flang-compiler/f18/pull/31
Create interval.h. Use std::size_t instead of bare size_t. Redefine parser::Name to not be just a bare string.
Break out and rename CharBlock from token-sequence.h for use in the parse tree.
Incremental replacement of name strings with pointers to cooked characters.
Fix case sensitivity problem.
Use new CharBlock encoding to replace strings for real literal constants.
Normalized cooked character stream to lower case.
Simplify parsing now that cooked stream is lower case. Replace Keyword in parse tree.
Add static_asserts to || and recovery parsers to enforce same result types.
Remove needless TODO comment inserted earlier.
Fix case conversion on prefixed character literals (f90_correct/dc04.f90).
Use CharBlock in user-state.h.
Complete transition from nextChar to nextCh (i.e., always use pointers).
Document extensions. Begin work on compiler directive lines.
More documentation work.
Reformat prescan.cc.
More work on compiler directive scanning.
Original-commit: flang-compiler/f18@38d0404e16
Reviewed-on: https://github.com/flang-compiler/f18/pull/29
Tree-same-pre-rewrite: false
Use "namespace Fortran::semantics".
Add helper MakeSymbol() functions to ResolveNameVisitor to make a symbol
in the current scope.
Start work on subroutines, similar to what's been done for functions.
Original-commit: flang-compiler/f18@afe84af1c7
Reviewed-on: https://github.com/flang-compiler/f18/pull/30
A Symbol consists of a common part (in class Symbol) containing name,
owner, attributes. Information for a specific kind of symbol is in a
variant containing one of the *Details classes. So the kind of symbol is
determined by the type of details class stored in the details_ variant.
For scopes there is a single Scope class with an enum indicating the
kind. So far there isn't a need for extra kind-specific details as with
Symbols but that could change. Symbols defined in a Scope are stored
there in a simple map.
resolve-names.cc is a partial implementation of a parse-tree walker that
resolves names to Symbols. Currently is only handles functions (which
introduce a new Scope) and entity-decls. The test-type executable was
reused as a driver for this to avoid the need for a new one.
Sample output is below. When each "end function" is encountered the
scope is dumped, which shows the symbols defined in it.
$ cat a.f90
pure integer(8) function foo(arg1, arg2) result(res)
integer :: arg1
real :: arg2
contains
function bar(arg1)
real :: bar
real :: arg1
end function
end function
$ Debug/tools/f18/test-type a.f90
Subprogram scope: 0 children
arg1: Entity type: REAL
bar: Entity type: REAL
Subprogram scope: 1 children
arg1: Entity type: INTEGER
arg2: Entity type: REAL
bar: Subprogram (arg1)
foo: Subprogram (arg1, arg2) result(res)
res: Entity type: INTEGER(8)
Original-commit: flang-compiler/f18@1cd2fbc04d
Reviewed-on: https://github.com/flang-compiler/f18/pull/30
Tree-same-pre-rewrite: false
