diff options
Diffstat (limited to 'src/testdir/test_vim9_disassemble.vim')
| -rw-r--r-- | src/testdir/test_vim9_disassemble.vim | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/testdir/test_vim9_disassemble.vim b/src/testdir/test_vim9_disassemble.vim index 89dcceed57..7746b23b41 100644 --- a/src/testdir/test_vim9_disassemble.vim +++ b/src/testdir/test_vim9_disassemble.vim @@ -1761,6 +1761,74 @@ def Test_disassemble_typecast() instr) enddef +def Test_disassemble_object_cast() + # Downcasting. + var lines =<< trim END + vim9script + class A + endclass + class B extends A + var mylen: number + endclass + def F(o: A): number + return (<B>o).mylen + enddef + + g:instr = execute('disassemble F') + END + v9.CheckScriptSuccess(lines) + assert_match('\<SNR>\d*_F\_s*' .. + 'return (<B>o).mylen\_s*' .. + '0 LOAD arg\[-1\]\_s*' .. + '1 CHECKTYPE object<B> stack\[-1\]\_s*' .. + '2 OBJ_MEMBER 0\_s*' .. + '3 RETURN\_s*', + g:instr) + + # Upcasting. + lines =<< trim END + vim9script + class A + var mylen: number + endclass + class B extends A + endclass + def F(o: B): number + return (<A>o).mylen + enddef + + g:instr = execute('disassemble F') + END + v9.CheckScriptSuccess(lines) + assert_match('\<SNR>\d*_F\_s*' .. + 'return (<A>o).mylen\_s*' .. + '0 LOAD arg\[-1\]\_s*' .. + '1 OBJ_MEMBER 0\_s*' .. + '2 RETURN\_s*', + g:instr) + + # Casting, type is not statically known. + lines =<< trim END + vim9script + class A + endclass + class B extends A + endclass + def F(o: any): any + return <A>o + enddef + + g:instr = execute('disassemble F') + END + v9.CheckScriptSuccess(lines) + assert_match('\<SNR>\d*_F\_s*' .. + 'return <A>o\_s*' .. + '0 LOAD arg\[-1\]\_s*' .. + '1 CHECKTYPE object<A> stack\[-1\]\_s*' .. + '2 RETURN\_s*', + g:instr) +enddef + def s:Computing() var nr = 3 var nrres = nr + 7 |