ba000628bd
This patch adds logic in the InputOutputTestAction frontend action for
reading input from stdin. Without this patch the following fails:
```
flang-new -fc1 -test-io -
```
The implementation of `InputOutputTestAction` is cleaned-up and a test
for reading from stdin is added.
Note that there's a difference between `-test-io` and e.g. `-E` in terms
of file I/O. The frontend action for the former handles all file I/O on
it's own. Conversely, the action corresponding to -E relies on the
prescanner API to handle this.
Currently we can't test reading from stdin for `flang-new -`. In this
case `libclangDriver` assumes `-x -c`. This in turn leads to `flang-new
-cc1`, which is not supported.
45 lines
1.5 KiB
Fortran
45 lines
1.5 KiB
Fortran
! Verify that reading from stdin works as expected
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! REQUIRES: new-flang-driver
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!--------------------------
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! FLANG DRIVER (flang-new)
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!--------------------------
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! TODO: Add support for `flang-new -`
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! Currently `bin/flang-new -E -` defaults to `-x c` and e.g. F90 is not allowed
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! in `-x <input-type>` (see `clang::driver::types::canTypeBeUserSpecified` in
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! Types.cpp)
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!---------------------------------------
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! FLANG FRONTEND DRIVER (flang-new -fc1)
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!---------------------------------------
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! Test `-E` - for the corresponding frontend actions the driver relies on the prescanner API to handle file I/O
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! RUN: cat %s | flang-new -fc1 -E | FileCheck %s --check-prefix=PP-NOT-DEFINED
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! RUN: cat %s | flang-new -fc1 -DNEW -E | FileCheck %s --check-prefix=PP-DEFINED
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! Test `-test-io` - for the corresponding frontend action (`InputOutputTestAction`) the driver handles the file I/O on its own
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! the corresponding action (`PrintPreprocessedAction`)
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! RUN: cat %s | flang-new -fc1 -test-io | FileCheck %s --check-prefix=IO --match-full-lines
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! RUN: cat %s | flang-new -fc1 -DNEW -test-io | FileCheck %s --check-prefix=IO --match-full-lines
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!-------------------------
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! EXPECTED OUTPUT for `-E`
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!-------------------------
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! PP-NOT-DEFINED: program b
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! PP-DEFINED: program a
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!-------------------------------
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! EXPECTED OUTPUT for `-test-io`
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!-------------------------------
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! IO: #ifdef NEW
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! IO-NEXT: Program A
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! IO-NEXT: #else
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! IO-NEXT: Program B
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! IO-NEXT: #endif
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#ifdef NEW
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Program A
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#else
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Program B
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#endif
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