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[mypyc] Add support for building mypyc code on WASM #13446

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Merged
merged 13 commits into from
Sep 16, 2022
Merged

[mypyc] Add support for building mypyc code on WASM #13446

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d8d257c
Add support for building mypyc code on WASM
emmatyping Aug 18, 2022
d750371
Fix formatting for black
emmatyping Aug 18, 2022
cff492f
Merge branch 'master' into wasm
emmatyping Aug 19, 2022
6f34290
Fix size of short
emmatyping Aug 19, 2022
cf38340
Merge branch 'wasm' of github.com:python/mypy into wasm
emmatyping Aug 19, 2022
dfba603
More tweaks, broken
emmatyping Aug 20, 2022
af2b349
Merge branch 'master' of github.com:python/mypy into wasm
emmatyping Aug 21, 2022
ca00b4d
Merge master in wasm
emmatyping Sep 4, 2022
4ec39a8
Add support for outputting vt100 colors with mypy running on emscripten
emmatyping Sep 16, 2022
95993f9
Merge branch 'wasm' of github.com:python/mypy into wasm
emmatyping Sep 16, 2022
9422bfc
Run black
emmatyping Sep 16, 2022
7f84702
Use bit_length instead of rounding
emmatyping Sep 16, 2022
fdd78db
Remove no longer needed math import
emmatyping Sep 16, 2022
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4 changes: 1 addition & 3 deletions mypyc/build.py
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Original file line number Diff line number Diff line change
Expand Up @@ -546,10 +546,8 @@ def mypycify(
"-Wno-unused-variable",
"-Wno-unused-command-line-argument",
"-Wno-unknown-warning-option",
"-Wno-unused-but-set-variable",
]
if "gcc" in compiler.compiler[0] or "gnu-cc" in compiler.compiler[0]:
# This flag is needed for gcc but does not exist on clang.
cflags += ["-Wno-unused-but-set-variable"]
elif compiler.compiler_type == "msvc":
# msvc doesn't have levels, '/O2' is full and '/Od' is disable
if opt_level == "0":
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13 changes: 10 additions & 3 deletions mypyc/common.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,8 @@
from __future__ import annotations

import math
import sys
import sysconfig
from typing import Any, Dict, Optional, Tuple
from typing_extensions import Final

Expand Down Expand Up @@ -30,7 +32,12 @@
# Maximal number of subclasses for a class to trigger fast path in isinstance() checks.
FAST_ISINSTANCE_MAX_SUBCLASSES: Final = 2

IS_32_BIT_PLATFORM: Final = sys.maxsize < (1 << 31)
# Size of size_t, if configured.
SIZEOF_SIZE_T: Final = sysconfig.get_config_var("SIZEOF_SIZE_T") or math.log2(sys.maxsize)

IS_32_BIT_PLATFORM: Final = (
sys.maxsize < (1 << 31) if SIZEOF_SIZE_T is None else int(SIZEOF_SIZE_T) == 4
)

PLATFORM_SIZE = 4 if IS_32_BIT_PLATFORM else 8

Expand All @@ -42,13 +49,13 @@
IS_MIXED_32_64_BIT_BUILD: Final = sys.platform in ["darwin"] and sys.version_info < (3, 6)

# Maximum value for a short tagged integer.
MAX_SHORT_INT: Final = sys.maxsize >> 1
MAX_SHORT_INT: Final = sys.maxsize >> 1 if SIZEOF_SIZE_T is None else 2 ** int(SIZEOF_SIZE_T)

# Maximum value for a short tagged integer represented as a C integer literal.
#
# Note: Assume that the compiled code uses the same bit width as mypyc, except for
# Python 3.5 on macOS.
MAX_LITERAL_SHORT_INT: Final = sys.maxsize >> 1 if not IS_MIXED_32_64_BIT_BUILD else 2**30 - 1
MAX_LITERAL_SHORT_INT: Final = MAX_SHORT_INT if not IS_MIXED_32_64_BIT_BUILD else 2**30 - 1
MIN_LITERAL_SHORT_INT: Final = -MAX_LITERAL_SHORT_INT - 1

# Runtime C library files
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