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
96 lines
2.1 KiB
Plaintext
96 lines
2.1 KiB
Plaintext
********** source program **********
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fn f () -> Int {
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return 0;
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}
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var Int : y = f()
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fn main () -> Int {
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return y;
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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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--- step exp Int --->
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--- step exp Int --->
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********** type checking complete **********
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fn f () -> Int {
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return 0;
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}
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var Int : y = f()
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fn main () -> Int {
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return y;
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}
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********** starting execution **********
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********** initializing globals **********
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--- step exp () --->
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--- step exp f() --->
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--- step exp f --->
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--- handle value fun<f> with f()<1>(fun<f>,) --->
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--- step exp () --->
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--- handle value () with f()<2>(fun<f>,(),) --->
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pattern_match((), ())
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--- step stmt return 0; --->
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--- step exp 0 --->
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--- handle value 0 with return 0;<1>(0,) --->
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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: fun<f>, 0, fun<main>,
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env: main: fun<main>, y: 0, f: fun<f>,
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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: fun<f>, 0, fun<main>,
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env: main: fun<main>, y: 0, f: fun<f>,
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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: fun<f>, 0, fun<main>,
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env: main: fun<main>, y: 0, f: fun<f>,
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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: fun<f>, 0, fun<main>,
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env: main: fun<main>, y: 0, f: fun<f>,
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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: fun<f>, 0, fun<main>,
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env: main: fun<main>, y: 0, f: fun<f>,
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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{return y;<-1>} :: top{}
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heap: fun<f>, 0, fun<main>,
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env: main: fun<main>, y: 0, f: fun<f>,
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}
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--- step stmt return y; --->
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{
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stack: main{y<-1> :: return y;<0>} :: top{}
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heap: fun<f>, 0, fun<main>,
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env: main: fun<main>, y: 0, f: fun<f>,
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}
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--- step exp y --->
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{
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stack: main{0<-1> :: return y;<0>} :: top{}
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heap: fun<f>, 0, fun<main>,
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env: main: fun<main>, y: 0, f: fun<f>,
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}
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--- handle value 0 with return y;<1>(0,) --->
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{
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stack: top{0<-1>}
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heap: fun<f>, 0, fun<main>,
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env: main: fun<main>, y: 0, f: fun<f>,
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}
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result: 0
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