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2021-07-11main: introduce new flag `-x` to allow disabling specific functionsJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-07-11main: refactor option parsing and VM setupJo-Philipp Wich
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>
2021-07-11vm: add API to control trace modeJo-Philipp Wich
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>
2021-07-11vm: extend API to allow returning result value from VM executionJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-05-25lexer: implement raw code modeJo-Philipp Wich
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>
2021-04-27treewide: ISO C / pedantic complianceJo-Philipp Wich
- 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>
2021-04-27vm: improve context for early errorsJo-Philipp Wich
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>
2021-04-23tests: add more testsPetr Štetiar
* add cram based tests * test under either valgrind or LLVM sanitizers * add libFuzzer template Signed-off-by: Petr Štetiar <ynezz@true.cz>