mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Jon Meow
6e5070de18
Notes versus what jsiek wrote:
- This adopts Bazel for building.
- System-local versions of bison/flex are used. I found https://github.com/jmillikin/rules_bison, but those print a lot of warnings (things like -Wsign-compare IIRC) which makes builds hard to read. Plus I think the underlying bison_cc_library rule didn't work, so this would really only get a hermetic bison/flex build (helpful, but didn't seem worth more time).
- I'm adding in a .bazeliskrc to push a somewhat more standard choice of bazel versions. I noticed I was getting unstable versions by default, possible Google-specific, but seemed good to include.
- The `-lpthread` kludge.
- Turn all of the examples into golden tests.
- Including adding a golden test rule.
- Fixed various style guide issues. For example:
- Fixing function names to be CamelCase instead of snake_case (https://google.github.io/styleguide/cppguide.html#Function_Names)
- Removed exception use (https://google.github.io/styleguide/cppguide.html#Exceptions)
- File name fixes (https://github.com/carbon-language/carbon-lang/blob/trunk/docs/project/cpp_style_guide.md#file-names)
- Dropped `using` of `std` names -- I believe this is preferred (maybe we should be explicit about this in the Carbon style guide)
- Switched `enum` uses to `enum class` for ease-of-identification.
- Spent some time breaking out files to hopefully be easier to read/edit pieces, and understand relations between structs.
- Added `code requires` to `syntax.ypp` to address include issues
Possibly other things -- but the fundamental structure is, I believe, unchanged. I put in the golden tests pretty early to ensure I wasn't mutating output/results.
149 lines
3.4 KiB
Plaintext
149 lines
3.4 KiB
Plaintext
********** source program **********
|
|
fn f () -> ();
|
|
fn main () -> Int {
|
|
f();
|
|
return 0;
|
|
|
|
}
|
|
********** type checking **********
|
|
--- step exp () --->
|
|
--- step exp Int --->
|
|
--- step exp () --->
|
|
--- step exp Int --->
|
|
|
|
********** type checking complete **********
|
|
fn f () -> () {
|
|
return ();
|
|
}
|
|
fn main () -> Int {
|
|
f();
|
|
return 0;
|
|
}
|
|
********** starting execution **********
|
|
********** initializing globals **********
|
|
--- step exp () --->
|
|
--- step exp () --->
|
|
********** calling main function **********
|
|
{
|
|
stack: top{main()<-1>}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- step exp main() --->
|
|
{
|
|
stack: top{main<-1> :: main()<0>}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- step exp main --->
|
|
{
|
|
stack: top{fun<main><-1> :: main()<0>}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- handle value fun<main> with main()<1>(fun<main>,) --->
|
|
{
|
|
stack: top{()<-1> :: main()<1>(fun<main>,)}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- step exp () --->
|
|
{
|
|
stack: top{()<-1> :: main()<1>(fun<main>,)}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- handle value () with main()<2>(fun<main>,(),) --->
|
|
pattern_match((), ())
|
|
{
|
|
stack: main{f(); ... <-1>} :: top{}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- step stmt f(); ... --->
|
|
{
|
|
stack: main{f();<-1> :: return 0;<-1>} :: top{}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- step stmt f(); --->
|
|
{
|
|
stack: main{f()<-1> :: f();<-1> :: return 0;<-1>} :: top{}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- step exp f() --->
|
|
{
|
|
stack: main{f<-1> :: f()<0> :: f();<-1> :: return 0;<-1>} :: top{}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- step exp f --->
|
|
{
|
|
stack: main{fun<f><-1> :: f()<0> :: f();<-1> :: return 0;<-1>} :: top{}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- handle value fun<f> with f()<1>(fun<f>,) --->
|
|
{
|
|
stack: main{()<-1> :: f()<1>(fun<f>,) :: f();<-1> :: return 0;<-1>} :: top{}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- step exp () --->
|
|
{
|
|
stack: main{()<-1> :: f()<1>(fun<f>,) :: f();<-1> :: return 0;<-1>} :: top{}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- handle value () with f()<2>(fun<f>,(),) --->
|
|
pattern_match((), ())
|
|
{
|
|
stack: f{return ();<-1>} :: main{f();<-1> :: return 0;<-1>} :: top{}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- step stmt return (); --->
|
|
{
|
|
stack: f{()<-1> :: return ();<0>} :: main{f();<-1> :: return 0;<-1>} :: top{}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- step exp () --->
|
|
{
|
|
stack: f{()<-1> :: return ();<0>} :: main{f();<-1> :: return 0;<-1>} :: top{}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- handle value () with return ();<1>((),) --->
|
|
{
|
|
stack: main{()<-1> :: f();<-1> :: return 0;<-1>} :: top{}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- handle value () with f();<0>((),) --->
|
|
{
|
|
stack: main{return 0;<-1>} :: top{}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- step stmt return 0; --->
|
|
{
|
|
stack: main{0<-1> :: return 0;<0>} :: top{}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- step exp 0 --->
|
|
{
|
|
stack: main{0<-1> :: return 0;<0>} :: top{}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
--- handle value 0 with return 0;<1>(0,) --->
|
|
{
|
|
stack: top{0<-1>}
|
|
heap: fun<f>, fun<main>,
|
|
env: main: fun<main>, f: fun<f>,
|
|
}
|
|
result: 0
|