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Store named constant values in the AST (#1011)

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This enables us to stop using `Env` in the typechecker. As a byproduct, this commit also restructures the interpreter to handle run-time global initialization as part of ordinary execution, using the Action stack.
This commit is contained in:
Geoff Romer
2022-01-13 11:07:28 -08:00
committed by GitHub
parent d88f95ad31
commit 461e178273
15 changed files with 309 additions and 242 deletions
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executable_semantics/testdata/basic_syntax/trace.carbon
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+2 -2
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@@ -13,7 +13,7 @@
// CHECK: fn Print (format_str: String) {
// CHECK: ********** type checking **********
// CHECK: checking pattern (format_str: String)
// CHECK: values: Print: fun<Print>
// CHECK: constants: Main: fun<Main>, Print: fun<Print>
// CHECK: ********** type checking complete **********
// CHECK: fn Print (format_str: String) {
// CHECK: ********** starting execution **********
@@ -21,7 +21,7 @@
// CHECK: ********** calling main function **********
// CHECK: {
// CHECK: stack:
// CHECK: heap: fun<Print>, fun<Main>
// CHECK: heap:
// CHECK: }
// CHECK: --- step exp Main() (<Main()>:0) --->
// CHECK: result: 0