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bpo-39320: Handle unpacking of *values in compiler (GH-17984)

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* Add three new bytecodes: LIST_TO_TUPLE, LIST_EXTEND, SET_UPDATE. Use them to implement star unpacking expressions.

* Remove four bytecodes BUILD_LIST_UNPACK, BUILD_TUPLE_UNPACK, BUILD_SET_UNPACK and  BUILD_TUPLE_UNPACK_WITH_CALL opcodes as they are now unused.

* Update magic number and dis.rst for new bytecodes.
This commit is contained in:
Mark Shannon 2020-01-23 09:25:17 +00:00 • committed by GitHub
parent f9e07e116c
commit 13bc13960c
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10 changed files with 2349 additions and 2360 deletions
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Include/opcode.h generated
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@ -60,6 +60,7 @@ extern "C" {
#define INPLACE_AND 77
#define INPLACE_XOR 78
#define INPLACE_OR 79
#define LIST_TO_TUPLE 82
#define RETURN_VALUE 83
#define IMPORT_STAR 84
#define SETUP_ANNOTATIONS 85
@ -116,18 +117,16 @@ extern "C" {
#define SET_ADD 146
#define MAP_ADD 147
#define LOAD_CLASSDEREF 148
#define BUILD_LIST_UNPACK 149
#define BUILD_MAP_UNPACK 150
#define BUILD_MAP_UNPACK_WITH_CALL 151
#define BUILD_TUPLE_UNPACK 152
#define BUILD_SET_UNPACK 153
#define SETUP_ASYNC_WITH 154
#define FORMAT_VALUE 155
#define BUILD_CONST_KEY_MAP 156
#define BUILD_STRING 157
#define BUILD_TUPLE_UNPACK_WITH_CALL 158
#define LOAD_METHOD 160
#define CALL_METHOD 161
#define LIST_EXTEND 162
#define SET_UPDATE 163
/* EXCEPT_HANDLER is a special, implicit block type which is created when
entering an except handler. It is not an opcode but we define it here