Add parse-tree-mutator.h like parse-tree-visitor.h except that the Walk
functions take non-const references to parse tree nodes so the Pre and
Post methods of the mutator that are passed around can make changes to
the parse tree.
Change ExecutionPart to be a class that wraps a list so that it can be
identified during parse tree walking.
Add Symbol* field to parser::Name for the result of symbol resolution.
In parse tree dumper, dump symbol when it is there instead of just name.
Add RewriteParseTree to walk the parse tree, fill in resolved symbols in
Name nodes, and make necessary changes to the structure. Currently that
consists of rewriting statement functions as array assignments when
appropriate.
In ResolveNames, call RewriteParseTree if the resolution was successful.
Recognize a statement function that comes after a mis-identified
statement function and report an error. resolve08.f90 tests this case.
Add -fdebug-dump-symbols to dump the scope tree and symbols in each scope.
This is implemented by DumpSymbols in resolve-names.cc. Add an optional
symbol to scopes that correspond to symbols (e.g. subprograms). Remove
debug output from ResolveNamesVisitor as this option can be used instead.
Original-commit: flang-compiler/f18@9cd3372265
Reviewed-on: https://github.com/flang-compiler/f18/pull/60
Tree-same-pre-rewrite: false
SubprogramDetails: Store dummy args and result as symbols, not names.
Symbol: Save list of occurrences (i.e. SourceNames that map to the same
symbol). This is needed to map Names in the parse tree back to symbols,
and will probably be useful when reporting errors.
Improve dumping of symbols.
resolve-names.cc: Recognize statement functions. They are treated like
function subprograms but the result type and type of dummy arguments come
from the enclosing scope. The implicit rules from the enclosing scope need
to be copied in.
Original-commit: flang-compiler/f18@44e4fb4b6c
Reviewed-on: https://github.com/flang-compiler/f18/pull/58
Tree-same-pre-rewrite: false
Add ArraySpecVisitor to recognize the various forms of array specifications.
They are tracked in arraySpec_ and attrArraySpec_. Both are needed because
a declaration like `integer, dimension(4) :: x(2,2), y` has two different
array-specs.
The method DeclareEntity was extracted out to handle the common part for
EntityDecl, ObjectDecl, and DimensionStmt. AllocatableStmt and TargetStmt
are now handled through their contained ObjectDecl.
The test resolve07 checks the interactions between these kinds of declarations.
Rename ComponentArraySpec to ArraySpec as it doesn't just occur in components.
Fix some 'begin' and 'end' methods to start with upper-case letters.
Original-commit: flang-compiler/f18@113bfc4fe7
Reviewed-on: https://github.com/flang-compiler/f18/pull/56
"f18 -fdebug-resolve-names -fparse-only ..." is equivalent to what
test-type used to do, so the test-type executable can be eliminated.
-fdebug-dump-parse-tree does the parse-tree dumping that test-sema
does, but test-sema does more so I have left it alone.
Original-commit: flang-compiler/f18@8b3816528e
Reviewed-on: https://github.com/flang-compiler/f18/pull/55
Add ArraySpecVisitor to recognize the various forms of array specifications.
They are tracked in arraySpec_ and attrArraySpec_. Both are needed because
a declaration like `integer, dimension(4) :: x(2,2), y` has two different
array-specs.
The method DeclareEntity was extracted out to handle the common part for
EntityDecl, ObjectDecl, and DimensionStmt. AllocatableStmt and TargetStmt
are now handled through their contained ObjectDecl.
The test resolve07 checks the interactions between these kinds of declarations.
Rename ComponentArraySpec to ArraySpec as it doesn't just occur in components.
Fix some 'begin' and 'end' methods to start with upper-case letters.
Original-commit: flang-compiler/f18@3d4d7430b5
Reviewed-on: https://github.com/flang-compiler/f18/pull/53
Includes like "../dir/file.h" should sort after local includes.
This change fixes that and applies the new formatting.
Now the order (in reverse) is:
- system includes
- includes from llvm or clang (this is from the default IncludeCategories)
- includes of ../something
- everything else
Original-commit: flang-compiler/f18@324643d63a
Reviewed-on: https://github.com/flang-compiler/f18/pull/52
In Symbol and Scope, use SourceName (== parser::CharBlock) in place of
Name (== std::string) so that names in the symtab have provenance. We
may ultimately have multiple source locations associated with a symbol.
ImplicitRules: Add isImplicitNoneType and isImplicitNoneExternal flags.
MessageHandler: Add methods to emit messages associated with source
locations.
Detect conflicting declarations of symbols (e.g. as subprogram and
variable).
Handle attribute statements like ASYNCHRONOUS statement: make sure the
symbol is present and set the attribute on it. Check that these all have
a type declared by the end of the specification part if IMPLICIT NONE.
Find variables named in Variable and Expr nodes and check they have
types declared if IMPLICIT NONE. Otherwise, make sure they are in the
symtab and apply the implicit type rules at the end of the scope.
Push a scope for MainProgram nodes and add a symbol for the name if it
has one.
Rename Scope::map_type to Scope::mapType
Add tests for errors currently being detected. There is no framework for
running them yet, just source files with the expected errors in
comments.
Original-commit: flang-compiler/f18@39e6fa4169
Reviewed-on: https://github.com/flang-compiler/f18/pull/49
Tree-same-pre-rewrite: false
