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gh-103763: Implement PEP 695 (#103764)

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This implements PEP 695, Type Parameter Syntax. It adds support for:

- Generic functions (def func[T](): ...)
- Generic classes (class X[T](): ...)
- Type aliases (type X = ...)
- New scoping when the new syntax is used within a class body
- Compiler and interpreter changes to support the new syntax and scoping rules 

Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com>
Co-authored-by: Eric Traut <eric@traut.com>
Co-authored-by: Larry Hastings <larry@hastings.org>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
This commit is contained in:
Jelle Zijlstra 2023-05-15 20:36:23 -07:00 • committed by GitHub
parent fdafdc235e
commit 24d8b88420
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GPG key ID: 4AEE18F83AFDEB23
56 changed files with 11405 additions and 5469 deletions
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20
Python/opcode_metadata.h
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@ -161,8 +161,12 @@ _PyOpcode_num_popped(int opcode, int oparg, bool jump) {
return 1;
case DELETE_GLOBAL:
return 0;
case LOAD_NAME:
case LOAD_LOCALS:
return 0;
case LOAD_NAME:
return 0+1;
case LOAD_FROM_DICT_OR_GLOBALS:
return 1;
case LOAD_GLOBAL:
return 0;
case LOAD_GLOBAL_MODULE:
@ -175,8 +179,8 @@ _PyOpcode_num_popped(int opcode, int oparg, bool jump) {
return 0;
case DELETE_DEREF:
return 0;
case LOAD_CLASSDEREF:
return 0;
case LOAD_FROM_DICT_OR_DEREF:
return 1;
case LOAD_DEREF:
return 0;
case STORE_DEREF:
@ -551,7 +555,11 @@ _PyOpcode_num_pushed(int opcode, int oparg, bool jump) {
return 0;
case DELETE_GLOBAL:
return 0;
case LOAD_LOCALS:
return 1;
case LOAD_NAME:
return 1+1;
case LOAD_FROM_DICT_OR_GLOBALS:
return 1;
case LOAD_GLOBAL:
return ((oparg & 1) ? 1 : 0) + 1;
@ -565,7 +573,7 @@ _PyOpcode_num_pushed(int opcode, int oparg, bool jump) {
return 0;
case DELETE_DEREF:
return 0;
case LOAD_CLASSDEREF:
case LOAD_FROM_DICT_OR_DEREF:
return 1;
case LOAD_DEREF:
return 1;
@ -869,14 +877,16 @@ const struct opcode_metadata _PyOpcode_opcode_metadata[256] = {
[DELETE_ATTR] = { true, INSTR_FMT_IB },
[STORE_GLOBAL] = { true, INSTR_FMT_IB },
[DELETE_GLOBAL] = { true, INSTR_FMT_IB },
[LOAD_LOCALS] = { true, INSTR_FMT_IB },
[LOAD_NAME] = { true, INSTR_FMT_IB },
[LOAD_FROM_DICT_OR_GLOBALS] = { true, INSTR_FMT_IB },
[LOAD_GLOBAL] = { true, INSTR_FMT_IBC000 },
[LOAD_GLOBAL_MODULE] = { true, INSTR_FMT_IBC000 },
[LOAD_GLOBAL_BUILTIN] = { true, INSTR_FMT_IBC000 },
[DELETE_FAST] = { true, INSTR_FMT_IB },
[MAKE_CELL] = { true, INSTR_FMT_IB },
[DELETE_DEREF] = { true, INSTR_FMT_IB },
[LOAD_CLASSDEREF] = { true, INSTR_FMT_IB },
[LOAD_FROM_DICT_OR_DEREF] = { true, INSTR_FMT_IB },
[LOAD_DEREF] = { true, INSTR_FMT_IB },
[STORE_DEREF] = { true, INSTR_FMT_IB },
[COPY_FREE_VARS] = { true, INSTR_FMT_IB },