Calling by-arity chained function panics when slicing in `ExecEnv::deinterlace` when providing less arguments #12

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opened 2022-07-02 08:37:46 -05:00 by Ghost · 0 comments

Ghost commented

2022-07-02 08:37:46 -05:00

Explanation

When calling functions chained by arity and argument list is not long enough to fulfill the arities of the functions in the chain, the interpreter panics when slicing the arguments.

Example code

functio Test (arg) 
{ arg print; }

Test * Test (AMOGUS);

Current behaviour

thread 'main' panicked at 'range start index 2 out of range for slice of length 1', library/core/src/slice/index.rs:52:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Expected behaviour

Call the second function in a chain with no arguments provided:

ඞ
undefined

# Explanation When calling functions chained by arity and argument list is not long enough to fulfill the arities of the functions in the chain, the interpreter panics when slicing the arguments. # Example code ``` functio Test (arg) { arg print; } Test * Test (AMOGUS); ``` # Current behaviour ``` thread 'main' panicked at 'range start index 2 out of range for slice of length 1', library/core/src/slice/index.rs:52:5 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace ``` # Expected behaviour Call the second function in a chain with no arguments provided: ``` ඞ undefined ```

Ghost added the

bug

panic

labels 2022-07-02 08:37:50 -05:00