* Clause 13 (Input/output editing) syntax and semantic checking
Diagnose:
- all clause syntax errors (independent of normal parsing)
- all clause constraints
- use of non-standard extensions under -Mstandard
- obvious program requirement violations
The code:
- is invoked for both format statement and I/O statement constant formats
- should be useable by the runtime I/O library for runtime formats
- is able to recover from errors
- is able to diagnose multiple errors in a single format
- has accurate markers for errors
- can process (fixed character size) Hollerith strings
- generates reasonable error messages for known error scenarios
- should not require C++ run-time library support
The code is templatized for use with fixed size character kind={1,2,4} input,
but only the kind=1 variant is actually exercised.
* Review update.
* Review update.
* Review update.
* Improve error processing of unterminated formats.
Original-commit: flang-compiler/f18@c04b7518df
Reviewed-on: https://github.com/flang-compiler/f18/pull/498
Collect sets of `parser::EquivalenceObject` to process at the end of
the specification part. This is so that names mentioned in the
EQUIVALENCE statement don't trigger implicit declarations.
The `EquivalenceSets` class performs most of the numerous checks
on objects that can be in equivalence sets at all and objects that
can be in them together. It also merges sets when the same object
appears in more than one.
Once equivalence sets are checked they are added to the `Scope`.
Further checks will be necessary after the size and alignment of
variables are computed.
Add `FindUltimateComponent` to simplify checks on ultimate components
of derived types. Use it to implement `HasCoarrayUltimateComponent`
and checks on equivalence objects.
Make `ExpressionAnalyzer::Analyze(Designator)` public so that
`parser::EquivalenceObject` can be analyzed.
Add `GetDefaultKind`, `doublePrecisionKind`, and `quadPrecisionKind`
to `SemanticsContext` so that `defaultKinds_` does not need to be
accessed directly.
Original-commit: flang-compiler/f18@1cc898e5b8
Reviewed-on: https://github.com/flang-compiler/f18/pull/494
Tree-same-pre-rewrite: false
checkpoint: changes build, tests all pass
many fixes, ready to test more
Further CLASS(*) support
More fixes for CLASS(*)
Hide data members of DynamicType
implement PRESENT() intrinsic
Original-commit: flang-compiler/f18@044ba12c20
Reviewed-on: https://github.com/flang-compiler/f18/pull/466
Tree-same-pre-rewrite: false
Preserve generated strings until consumed by formatting.
bugfix from premature push
Address review comments
Last fix(?)
Use %s formatting for CharBlocks and strings
Use new formatting and fix usage of std::forward<>()
Use forward_list rather than vector to save strings
Original-commit: flang-compiler/f18@8ea478420f
Reviewed-on: https://github.com/flang-compiler/f18/pull/444
Tree-same-pre-rewrite: false
* Clause 12 semantics
Check all constraints not otherwise checked during parsing or label scope
validation, except for C1201, C1231, and C1233-5. Obvious program
requirements are also checked, except for 12.6.2.2 constant format string
validation.
Original-commit: flang-compiler/f18@e4ec343618
Reviewed-on: https://github.com/flang-compiler/f18/pull/427
