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Do not continue loading other libraries or executing the main code if
loading one of the preload libraries fails.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
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- Change command line flags to be align better with those of other
interpreters and with the gcc compiler, e.g. `-D` and `-U` to
define and undefine globals, `-e` to execute script expression etc.
- Pass only excess CLI arguments as `ARGV` to scripts, e.g.
`ucode -e 'print("Hello world")' -- -x -y` would pass only
`[ "-x", "-y" ]` as ARGV contents
- Default to raw mode and introduce flag to enable template mode
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
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- Introduce new command line flags `-o` and `-O` to write compiled program
code into the specified output file
- Add support for transparently executing precompiled files, the
lexical analyzing and com,pilation phase is skipped in this case
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
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Signed-off-by: Jo-Philipp Wich <jo@mein.io>
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Set VM options and environment variables and load modules on the fly
while parsing the cli options instead of aggregating all the values in
memory first.
This vastly reduces the amount of arguments we need to pass to the
parse() function. Also rename parse() to compile() while we're at it.
Also slightly adjust the usage output.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
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Add a public getter and setter to read and set the VM trace level
respectively. Use the new API to control the trace mode with a newly
introduced `-t` command line switch.
Drop support for honouring the `TRACE` environment variable as
host programs embedding ucode might want to prevent that behaviour
or handle it differently.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
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Signed-off-by: Jo-Philipp Wich <jo@mein.io>
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Enabling raw code mode allows writing ucode scripts without any template
tag decorations (that is, without the need to provide an initial opening
'{%' tag).
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
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- Shuffle typedefs to avoid need for non-compliant forward declarations
- Fix non-compliant empty struct initializers
- Remove use of braced expressions
- Remove use of anonymous unions
- Avoid `void *` pointer arithmetic
- Fix several warnings reported by gcc -pedantic mode and clang 11 compilation
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
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Print "Before start of program" for errors that are raised before entering
main(), e.g. on module preloading failure.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
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* add cram based tests
* test under either valgrind or LLVM sanitizers
* add libFuzzer template
Signed-off-by: Petr Štetiar <ynezz@true.cz>
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