mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-25 07:20:10 +01:00
Jeremy G. Siek
ced98ef021
* global variables * implemented type checking of global variable, added test case * added a comment * improvements based on Dave's suggestions * improvements based on Jon's suggestions * added test cases about global variable ordering
116 lines
2.6 KiB
Plaintext
116 lines
2.6 KiB
Plaintext
********** source program **********
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var Int : zero = 1
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fn main () -> Int {
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zero = 0;
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return zero;
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}
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********** type checking **********
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--- step exp Int --->
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--- step exp Int --->
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--- step exp Int --->
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--- step exp Int --->
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********** type checking complete **********
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var Int : zero = 1
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fn main () -> Int {
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zero = 0;
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return zero;
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}
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********** starting execution **********
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********** initializing globals **********
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--- step exp 1 --->
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--- step exp () --->
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********** calling main function **********
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{
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stack: top{main()<-1>}
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heap: 1, fun<main>,
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env: main: fun<main>, zero: 1,
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}
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--- step exp main() --->
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{
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stack: top{main<-1> :: main()<0>}
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heap: 1, fun<main>,
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env: main: fun<main>, zero: 1,
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}
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--- step exp main --->
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{
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stack: top{fun<main><-1> :: main()<0>}
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heap: 1, fun<main>,
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env: main: fun<main>, zero: 1,
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}
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--- handle value fun<main> with main()<1>(fun<main>,) --->
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{
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stack: top{()<-1> :: main()<1>(fun<main>,)}
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heap: 1, fun<main>,
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env: main: fun<main>, zero: 1,
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}
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--- step exp () --->
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{
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stack: top{()<-1> :: main()<1>(fun<main>,)}
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heap: 1, fun<main>,
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env: main: fun<main>, zero: 1,
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}
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--- handle value () with main()<2>(fun<main>,(),) --->
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pattern_match((), ())
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{
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stack: main{zero = 0; ... <-1>} :: top{}
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heap: 1, fun<main>,
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env: main: fun<main>, zero: 1,
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}
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--- step stmt zero = 0; ... --->
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{
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stack: main{zero = 0;<-1> :: return zero;<-1>} :: top{}
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heap: 1, fun<main>,
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env: main: fun<main>, zero: 1,
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}
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--- step stmt zero = 0; --->
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{
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stack: main{zero<-1> :: zero = 0;<0> :: return zero;<-1>} :: top{}
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heap: 1, fun<main>,
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env: main: fun<main>, zero: 1,
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}
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--- step lvalue zero --->
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{
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stack: main{ptr<0><-1> :: zero = 0;<0> :: return zero;<-1>} :: top{}
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heap: 1, fun<main>,
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env: main: fun<main>, zero: 1,
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}
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--- handle value ptr<0> with zero = 0;<1>(ptr<0>,) --->
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{
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stack: main{0<-1> :: zero = 0;<1>(ptr<0>,) :: return zero;<-1>} :: top{}
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heap: 1, fun<main>,
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env: main: fun<main>, zero: 1,
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}
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--- step exp 0 --->
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{
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stack: main{0<-1> :: zero = 0;<1>(ptr<0>,) :: return zero;<-1>} :: top{}
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heap: 1, fun<main>,
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env: main: fun<main>, zero: 1,
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}
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--- handle value 0 with zero = 0;<2>(ptr<0>,0,) --->
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{
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stack: main{return zero;<-1>} :: top{}
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heap: 0, fun<main>,
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env: main: fun<main>, zero: 0,
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}
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--- step stmt return zero; --->
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{
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stack: main{zero<-1> :: return zero;<0>} :: top{}
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heap: 0, fun<main>,
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env: main: fun<main>, zero: 0,
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}
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--- step exp zero --->
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{
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stack: main{0<-1> :: return zero;<0>} :: top{}
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heap: 0, fun<main>,
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env: main: fun<main>, zero: 0,
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}
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--- handle value 0 with return zero;<1>(0,) --->
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{
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stack: top{0<-1>}
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heap: 0, fun<main>,
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env: main: fun<main>, zero: 0,
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}
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result: 0
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