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carbon-lang/executable_semantics/testdata/record1.golden
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Jon Meow 6e5070de18 Adapting jsiek's executable semantics tooling for commit. (#237) 
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.
2021-02-19 15:25:43 -08:00

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********** source program **********
fn main () -> Int {
var (x = Int, y = Int): t2 = (y = 5, x = 2);
t2.y = 3;
return ((t2.y - t2.x) - 1);
}
********** type checking **********
--- step exp Int --->
--- step exp Int --->
--- step exp (x = Int, y = Int) --->
--- step exp Int --->
--- handle value Int with (x = Int, y = Int)<1>(Int,) --->
--- step exp Int --->
--- handle value Int with (x = Int, y = Int)<2>(Int,Int,) --->
********** type checking complete **********
fn main () -> Int {
var (x = Int, y = Int): t2 = (y = 5, x = 2);
t2.y = 3;
return ((t2.y - t2.x) - 1);
}
********** starting execution **********
********** initializing globals **********
--- step exp () --->
********** calling main function **********
{
stack: top{main()<-1>}
heap: fun<main>,
env: main: fun<main>,
}
--- step exp main() --->
{
stack: top{main<-1> :: main()<0>}
heap: fun<main>,
env: main: fun<main>,
}
--- step exp main --->
{
stack: top{fun<main><-1> :: main()<0>}
heap: fun<main>,
env: main: fun<main>,
}
--- handle value fun<main> with main()<1>(fun<main>,) --->
{
stack: top{()<-1> :: main()<1>(fun<main>,)}
heap: fun<main>,
env: main: fun<main>,
}
--- step exp () --->
{
stack: top{()<-1> :: main()<1>(fun<main>,)}
heap: fun<main>,
env: main: fun<main>,
}
--- handle value () with main()<2>(fun<main>,(),) --->
pattern_match((), ())
{
stack: main{var (x = Int, y = Int): t2 = (y = 5, x = 2); ... <-1>} :: top{}
heap: fun<main>,
env: main: fun<main>,
}
--- step stmt var (x = Int, y = Int): t2 = (y = 5, x = 2); ... --->
{
stack: main{var (x = Int, y = Int): t2 = (y = 5, x = 2);<-1> :: t2.y = 3; ... <-1>} :: top{}
heap: fun<main>,
env: main: fun<main>,
}
--- step stmt var (x = Int, y = Int): t2 = (y = 5, x = 2); --->
{
stack: main{(y = 5, x = 2)<-1> :: var (x = Int, y = Int): t2 = (y = 5, x = 2);<0> :: t2.y = 3; ... <-1>} :: top{}
heap: fun<main>,
env: main: fun<main>,
}
--- step exp (y = 5, x = 2) --->
{
stack: main{5<-1> :: (y = 5, x = 2)<0> :: var (x = Int, y = Int): t2 = (y = 5, x = 2);<0> :: t2.y = 3; ... <-1>} :: top{}
heap: fun<main>,
env: main: fun<main>,
}
--- step exp 5 --->
{
stack: main{5<-1> :: (y = 5, x = 2)<0> :: var (x = Int, y = Int): t2 = (y = 5, x = 2);<0> :: t2.y = 3; ... <-1>} :: top{}
heap: fun<main>,
env: main: fun<main>,
}
--- handle value 5 with (y = 5, x = 2)<1>(5,) --->
{
stack: main{2<-1> :: (y = 5, x = 2)<1>(5,) :: var (x = Int, y = Int): t2 = (y = 5, x = 2);<0> :: t2.y = 3; ... <-1>} :: top{}
heap: fun<main>,
env: main: fun<main>,
}
--- step exp 2 --->
{
stack: main{2<-1> :: (y = 5, x = 2)<1>(5,) :: var (x = Int, y = Int): t2 = (y = 5, x = 2);<0> :: t2.y = 3; ... <-1>} :: top{}
heap: fun<main>,
env: main: fun<main>,
}
--- handle value 2 with (y = 5, x = 2)<2>(5,2,) --->
{
stack: main{(y = 5@1, x = 2@2)<-1> :: var (x = Int, y = Int): t2 = (y = 5, x = 2);<0> :: t2.y = 3; ... <-1>} :: top{}
heap: fun<main>, 5, 2,
env: main: fun<main>,
}
--- handle value (y = 5@1, x = 2@2) with var (x = Int, y = Int): t2 = (y = 5, x = 2);<1>((y = 5@1, x = 2@2),) --->
{
stack: main{(x = Int, y = Int): t2<-1> :: var (x = Int, y = Int): t2 = (y = 5, x = 2);<1>((y = 5@1, x = 2@2),) :: t2.y = 3; ... <-1>} :: top{}
heap: fun<main>, 5, 2,
env: main: fun<main>,
}
--- step exp (x = Int, y = Int): t2 --->
{
stack: main{(x = Int, y = Int)<-1> :: (x = Int, y = Int): t2<0> :: var (x = Int, y = Int): t2 = (y = 5, x = 2);<1>((y = 5@1, x = 2@2),) :: t2.y = 3; ... <-1>} :: top{}
heap: fun<main>, 5, 2,
env: main: fun<main>,
}
--- step exp (x = Int, y = Int) --->
{
stack: main{Int<-1> :: (x = Int, y = Int)<0> :: (x = Int, y = Int): t2<0> :: var (x = Int, y = Int): t2 = (y = 5, x = 2);<1>((y = 5@1, x = 2@2),) :: t2.y = 3; ... <-1>} :: top{}
heap: fun<main>, 5, 2,
env: main: fun<main>,
}
--- step exp Int --->
{
stack: main{Int<-1> :: (x = Int, y = Int)<0> :: (x = Int, y = Int): t2<0> :: var (x = Int, y = Int): t2 = (y = 5, x = 2);<1>((y = 5@1, x = 2@2),) :: t2.y = 3; ... <-1>} :: top{}
heap: fun<main>, 5, 2,
env: main: fun<main>,
}
--- handle value Int with (x = Int, y = Int)<1>(Int,) --->
{
stack: main{Int<-1> :: (x = Int, y = Int)<1>(Int,) :: (x = Int, y = Int): t2<0> :: var (x = Int, y = Int): t2 = (y = 5, x = 2);<1>((y = 5@1, x = 2@2),) :: t2.y = 3; ... <-1>} :: top{}
heap: fun<main>, 5, 2,
env: main: fun<main>,
}
--- step exp Int --->
{
stack: main{Int<-1> :: (x = Int, y = Int)<1>(Int,) :: (x = Int, y = Int): t2<0> :: var (x = Int, y = Int): t2 = (y = 5, x = 2);<1>((y = 5@1, x = 2@2),) :: t2.y = 3; ... <-1>} :: top{}
heap: fun<main>, 5, 2,
env: main: fun<main>,
}
--- handle value Int with (x = Int, y = Int)<2>(Int,Int,) --->
{
stack: main{(x = Int@3, y = Int@4)<-1> :: (x = Int, y = Int): t2<0> :: var (x = Int, y = Int): t2 = (y = 5, x = 2);<1>((y = 5@1, x = 2@2),) :: t2.y = 3; ... <-1>} :: top{}
heap: fun<main>, 5, 2, Int, Int,
env: main: fun<main>,
}
--- handle value (x = Int@3, y = Int@4) with (x = Int, y = Int): t2<1>((x = Int@3, y = Int@4),) --->
{
stack: main{(x = Int@3, y = Int@4): t2<-1> :: var (x = Int, y = Int): t2 = (y = 5, x = 2);<1>((y = 5@1, x = 2@2),) :: t2.y = 3; ... <-1>} :: top{}
heap: fun<main>, 5, 2, Int, Int,
env: main: fun<main>,
}
--- handle value (x = Int@3, y = Int@4): t2 with var (x = Int, y = Int): t2 = (y = 5, x = 2);<2>((y = 5@1, x = 2@2),(x = Int@3, y = Int@4): t2,) --->
pattern_match((x = Int@3, y = Int@4): t2, (y = 5@1, x = 2@2))
{
stack: main{t2.y = 3; ... <-1>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 5, 2, (y = 5@5, x = 2@6),
env: t2: (y = 5@5, x = 2@6), main: fun<main>,
}
--- step stmt t2.y = 3; ... --->
{
stack: main{t2.y = 3;<-1> :: return ((t2.y - t2.x) - 1);<-1>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 5, 2, (y = 5@5, x = 2@6),
env: t2: (y = 5@5, x = 2@6), main: fun<main>,
}
--- step stmt t2.y = 3; --->
{
stack: main{t2.y<-1> :: t2.y = 3;<0> :: return ((t2.y - t2.x) - 1);<-1>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 5, 2, (y = 5@5, x = 2@6),
env: t2: (y = 5@5, x = 2@6), main: fun<main>,
}
--- step lvalue t2.y --->
{
stack: main{t2<-1> :: t2.y<0> :: t2.y = 3;<0> :: return ((t2.y - t2.x) - 1);<-1>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 5, 2, (y = 5@5, x = 2@6),
env: t2: (y = 5@5, x = 2@6), main: fun<main>,
}
--- step lvalue t2 --->
{
stack: main{ptr<7><-1> :: t2.y<0> :: t2.y = 3;<0> :: return ((t2.y - t2.x) - 1);<-1>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 5, 2, (y = 5@5, x = 2@6),
env: t2: (y = 5@5, x = 2@6), main: fun<main>,
}
--- handle value ptr<7> with t2.y<1>(ptr<7>,) --->
{
stack: main{ptr<5><-1> :: t2.y = 3;<0> :: return ((t2.y - t2.x) - 1);<-1>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 5, 2, (y = 5@5, x = 2@6),
env: t2: (y = 5@5, x = 2@6), main: fun<main>,
}
--- handle value ptr<5> with t2.y = 3;<1>(ptr<5>,) --->
{
stack: main{3<-1> :: t2.y = 3;<1>(ptr<5>,) :: return ((t2.y - t2.x) - 1);<-1>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 5, 2, (y = 5@5, x = 2@6),
env: t2: (y = 5@5, x = 2@6), main: fun<main>,
}
--- step exp 3 --->
{
stack: main{3<-1> :: t2.y = 3;<1>(ptr<5>,) :: return ((t2.y - t2.x) - 1);<-1>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 5, 2, (y = 5@5, x = 2@6),
env: t2: (y = 5@5, x = 2@6), main: fun<main>,
}
--- handle value 3 with t2.y = 3;<2>(ptr<5>,3,) --->
{
stack: main{return ((t2.y - t2.x) - 1);<-1>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 3, 2, (y = 3@5, x = 2@6),
env: t2: (y = 3@5, x = 2@6), main: fun<main>,
}
--- step stmt return ((t2.y - t2.x) - 1); --->
{
stack: main{((t2.y - t2.x) - 1)<-1> :: return ((t2.y - t2.x) - 1);<0>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 3, 2, (y = 3@5, x = 2@6),
env: t2: (y = 3@5, x = 2@6), main: fun<main>,
}
--- step exp ((t2.y - t2.x) - 1) --->
{
stack: main{(t2.y - t2.x)<-1> :: ((t2.y - t2.x) - 1)<0> :: return ((t2.y - t2.x) - 1);<0>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 3, 2, (y = 3@5, x = 2@6),
env: t2: (y = 3@5, x = 2@6), main: fun<main>,
}
--- step exp (t2.y - t2.x) --->
{
stack: main{t2.y<-1> :: (t2.y - t2.x)<0> :: ((t2.y - t2.x) - 1)<0> :: return ((t2.y - t2.x) - 1);<0>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 3, 2, (y = 3@5, x = 2@6),
env: t2: (y = 3@5, x = 2@6), main: fun<main>,
}
--- step exp t2.y --->
{
stack: main{t2<-1> :: t2.y<0> :: (t2.y - t2.x)<0> :: ((t2.y - t2.x) - 1)<0> :: return ((t2.y - t2.x) - 1);<0>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 3, 2, (y = 3@5, x = 2@6),
env: t2: (y = 3@5, x = 2@6), main: fun<main>,
}
--- step lvalue t2 --->
{
stack: main{ptr<7><-1> :: t2.y<0> :: (t2.y - t2.x)<0> :: ((t2.y - t2.x) - 1)<0> :: return ((t2.y - t2.x) - 1);<0>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 3, 2, (y = 3@5, x = 2@6),
env: t2: (y = 3@5, x = 2@6), main: fun<main>,
}
--- handle value ptr<7> with t2.y<1>(ptr<7>,) --->
{
stack: main{3<-1> :: (t2.y - t2.x)<0> :: ((t2.y - t2.x) - 1)<0> :: return ((t2.y - t2.x) - 1);<0>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 3, 2, (y = 3@5, x = 2@6),
env: t2: (y = 3@5, x = 2@6), main: fun<main>,
}
--- handle value 3 with (t2.y - t2.x)<1>(3,) --->
{
stack: main{t2.x<-1> :: (t2.y - t2.x)<1>(3,) :: ((t2.y - t2.x) - 1)<0> :: return ((t2.y - t2.x) - 1);<0>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 3, 2, (y = 3@5, x = 2@6),
env: t2: (y = 3@5, x = 2@6), main: fun<main>,
}
--- step exp t2.x --->
{
stack: main{t2<-1> :: t2.x<0> :: (t2.y - t2.x)<1>(3,) :: ((t2.y - t2.x) - 1)<0> :: return ((t2.y - t2.x) - 1);<0>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 3, 2, (y = 3@5, x = 2@6),
env: t2: (y = 3@5, x = 2@6), main: fun<main>,
}
--- step lvalue t2 --->
{
stack: main{ptr<7><-1> :: t2.x<0> :: (t2.y - t2.x)<1>(3,) :: ((t2.y - t2.x) - 1)<0> :: return ((t2.y - t2.x) - 1);<0>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 3, 2, (y = 3@5, x = 2@6),
env: t2: (y = 3@5, x = 2@6), main: fun<main>,
}
--- handle value ptr<7> with t2.x<1>(ptr<7>,) --->
{
stack: main{2<-1> :: (t2.y - t2.x)<1>(3,) :: ((t2.y - t2.x) - 1)<0> :: return ((t2.y - t2.x) - 1);<0>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 3, 2, (y = 3@5, x = 2@6),
env: t2: (y = 3@5, x = 2@6), main: fun<main>,
}
--- handle value 2 with (t2.y - t2.x)<2>(3,2,) --->
{
stack: main{1<-1> :: ((t2.y - t2.x) - 1)<0> :: return ((t2.y - t2.x) - 1);<0>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 3, 2, (y = 3@5, x = 2@6),
env: t2: (y = 3@5, x = 2@6), main: fun<main>,
}
--- handle value 1 with ((t2.y - t2.x) - 1)<1>(1,) --->
{
stack: main{1<-1> :: ((t2.y - t2.x) - 1)<1>(1,) :: return ((t2.y - t2.x) - 1);<0>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 3, 2, (y = 3@5, x = 2@6),
env: t2: (y = 3@5, x = 2@6), main: fun<main>,
}
--- step exp 1 --->
{
stack: main{1<-1> :: ((t2.y - t2.x) - 1)<1>(1,) :: return ((t2.y - t2.x) - 1);<0>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 3, 2, (y = 3@5, x = 2@6),
env: t2: (y = 3@5, x = 2@6), main: fun<main>,
}
--- handle value 1 with ((t2.y - t2.x) - 1)<2>(1,1,) --->
{
stack: main{0<-1> :: return ((t2.y - t2.x) - 1);<0>} :: top{}
heap: fun<main>, 5, 2, Int, Int, 3, 2, (y = 3@5, x = 2@6),
env: t2: (y = 3@5, x = 2@6), main: fun<main>,
}
--- handle value 0 with return ((t2.y - t2.x) - 1);<1>(0,) --->
{
stack: top{0<-1>}
heap: fun<main>, 5, 2, Int, Int, !!3, !!2, !!(y = !!3@5, x = !!2@6),
env: main: fun<main>,
}
result: 0
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