mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-11 13:36:13 +03:00
LibWasm+Meta: Implement instantiation/execution primitives in test-wasm
This also optionally generates a test suite from the WebAssembly testsuite, which can be enabled via passing `INCLUDE_WASM_SPEC_TESTS` to cmake, which will generate test-wasm-compatible tests and the required fixtures. The generated directories are excluded from git since there's no point in committing them.
This commit is contained in:
parent
541091500c
commit
24b2a6c93a
Notes:
sideshowbarker
2024-07-18 17:39:50 +09:00
Author: https://github.com/alimpfard Commit: https://github.com/SerenityOS/serenity/commit/24b2a6c93a6 Pull-request: https://github.com/SerenityOS/serenity/pull/7239 Reviewed-by: https://github.com/linusg
1
.gitignore
vendored
1
.gitignore
vendored
@ -27,3 +27,4 @@ sync-local.sh
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.vim/
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.vim/
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Userland/Libraries/LibWasm/Tests/Fixtures/SpecTests
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Userland/Libraries/LibWasm/Tests/Fixtures/SpecTests
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Userland/Libraries/LibWasm/Tests/Spec
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@ -267,11 +267,9 @@ if(INCLUDE_WASM_SPEC_TESTS)
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file(GLOB WASM_TESTS "${CMAKE_BINARY_DIR}/testsuite-master/*.wast")
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file(GLOB WASM_TESTS "${CMAKE_BINARY_DIR}/testsuite-master/*.wast")
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foreach(PATH ${WASM_TESTS})
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foreach(PATH ${WASM_TESTS})
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get_filename_component(NAME ${PATH} NAME_WLE)
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get_filename_component(NAME ${PATH} NAME_WLE)
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message(STATUS "Compiling WebAssembly test ${NAME}...")
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message(STATUS "Generating test cases for WebAssembly test ${NAME}...")
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execute_process(
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execute_process(
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COMMAND wasm-as -n ${PATH} -o "${WASM_SPEC_TEST_PATH}/${NAME}.wasm"
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COMMAND bash ${CMAKE_SOURCE_DIR}/Meta/generate-libwasm-spec-test.sh "${PATH}" "${CMAKE_SOURCE_DIR}/Userland/Libraries/LibWasm/Tests/Spec" "${NAME}" "${WASM_SPEC_TEST_PATH}")
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OUTPUT_QUIET
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ERROR_QUIET)
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endforeach()
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endforeach()
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file(REMOVE testsuite-master)
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file(REMOVE testsuite-master)
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endif()
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endif()
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232
Meta/generate-libwasm-spec-test.py
Normal file
232
Meta/generate-libwasm-spec-test.py
Normal file
@ -0,0 +1,232 @@
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#!/usr/bin/env python3
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from sys import argv, stderr
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from os import path
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from string import whitespace
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import re
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import math
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from tempfile import NamedTemporaryFile
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from subprocess import call
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import json
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atom_end = set('()"' + whitespace)
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def parse(sexp):
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sexp = re.sub(r'(?m)\(;.*;\)', '', re.sub(r'(;;.*)', '', sexp))
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stack, i, length = [[]], 0, len(sexp)
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while i < length:
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c = sexp[i]
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kind = type(stack[-1])
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if kind == list:
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if c == '(':
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stack.append([])
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elif c == ')':
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stack[-2].append(stack.pop())
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elif c == '"':
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stack.append('')
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elif c in whitespace:
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pass
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else:
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stack.append((c,))
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elif kind == str:
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if c == '"':
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stack[-2].append(stack.pop())
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elif c == '\\':
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i += 1
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stack[-1] += sexp[i]
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else:
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stack[-1] += c
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elif kind == tuple:
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if c in atom_end:
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atom = stack.pop()
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stack[-1].append(atom)
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continue
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else:
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stack[-1] = ((stack[-1][0] + c),)
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i += 1
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return stack.pop()
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def parse_typed_value(ast):
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types = {
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'i32.const': 'i32',
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'i64.const': 'i64',
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'f32.const': 'float',
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'f64.const': 'double',
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}
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if len(ast) == 2 and ast[0][0] in types:
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return {"type": types[ast[0][0]], "value": ast[1][0]}
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return {"type": "error"}
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def generate_module_source_for_compilation(entries):
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s = '('
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for entry in entries:
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if type(entry) == tuple and len(entry) == 1 and type(entry[0]) == str:
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s += entry[0] + ' '
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elif type(entry) == str:
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s += json.dumps(entry) + ' '
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elif type(entry) == list:
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s += generate_module_source_for_compilation(entry)
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else:
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raise Exception("wat? I dunno how to pretty print " + str(type(entry)))
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while s.endswith(' '):
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s = s[:len(s) - 1]
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return s + ')'
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def generate(ast):
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if type(ast) != list:
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return []
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tests = []
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for entry in ast:
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if len(entry) > 0 and entry[0] == ('module',):
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tests.append({
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"module": generate_module_source_for_compilation(entry),
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"tests": []
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})
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elif len(entry) in [2, 3] and entry[0][0].startswith('assert_'):
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if entry[1][0] == ('invoke',):
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tests[-1]["tests"].append({
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"kind": entry[0][0][len('assert_'):],
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"function": {
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"name": entry[1][1],
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"args": list(parse_typed_value(x) for x in entry[1][2:])
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},
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"result": parse_typed_value(entry[2]) if len(entry) == 3 else None
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})
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else:
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print("Ignoring unknown assertion argument", entry[1][0], file=stderr)
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elif len(entry) >= 2 and entry[0][0] == 'invoke':
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# toplevel invoke :shrug:
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tests[-1]["tests"].append({
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"kind": "ignore",
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"function": {
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"name": entry[1][1],
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"args": list(parse_typed_value(x) for x in entry[1][2:])
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},
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"result": parse_typed_value(entry[2]) if len(entry) == 3 else None
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})
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else:
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print("Ignoring unknown entry", entry, file=stderr)
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return tests
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def genarg(spec):
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if spec['type'] == 'error':
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return '0'
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def gen():
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x = spec['value']
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if x == 'nan':
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return 'NaN'
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if x == '-nan':
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return '-NaN'
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try:
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x = float.fromhex(x)
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if math.isnan(x):
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# FIXME: This is going to mess up the different kinds of nan
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return '-NaN' if math.copysign(1.0, x) < 0 else 'NaN'
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if math.isinf(x):
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return 'Infinity' if x > 0 else '-Infinity'
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return str(x)
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except ValueError:
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try:
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x = int(x, 0)
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return str(x)
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except ValueError:
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return x
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x = gen()
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if x.startswith('nan'):
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return 'NaN'
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if x.startswith('-nan'):
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return '-NaN'
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return x
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all_names_in_main = {}
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def genresult(ident, entry):
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if entry['kind'] == 'return':
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return_check = f'expect({ident}_result).toBe({genarg(entry["result"])})' if entry["result"] is not None else ''
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return (
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f'let {ident}_result ='
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f' module.invoke({ident}, {", ".join(genarg(x) for x in entry["function"]["args"])});\n '
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f'{return_check};\n '
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)
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if entry['kind'] == 'trap':
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return (
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f'expect(() => module.invoke({ident}, {", ".join(genarg(x) for x in entry["function"]["args"])}))'
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'.toThrow(TypeError, "Execution trapped");\n '
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)
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if entry['kind'] == 'ignore':
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return f'module.invoke({ident}, {", ".join(genarg(x) for x in entry["function"]["args"])});\n '
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return f'throw Exception("(Test Generator) Unknown test kind {entry["kind"]}");\n '
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def gentest(entry, main_name):
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name = entry["function"]["name"]
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if type(name) != str:
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print("Unsupported test case (call to", name, ")", file=stderr)
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return '\n '
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ident = '_' + re.sub("[^a-zA-Z_0-9]", "_", name)
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count = all_names_in_main.get(name, 0)
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all_names_in_main[name] = count + 1
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test_name = f'execution of {main_name}: {name} (instance {count})'
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source = (
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f'test({json.dumps(test_name)}, () => {{\n'
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f'let {ident} = module.getExport({json.dumps(name)});\n '
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f'expect({ident}).not.toBeUndefined();\n '
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f'{genresult(ident, entry)}'
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'});\n\n '
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)
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return source
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def gen_parse_module(name):
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return (
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f'let content;\n '
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f'try {{\n '
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f'content = readBinaryWasmFile("Fixtures/SpecTests/{name}.wasm");\n '
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f'}} catch {{ read_okay = false; }}\n '
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f'const module = parseWebAssemblyModule(content)\n '
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)
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def main():
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with open(argv[1]) as f:
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sexp = f.read()
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name = argv[2]
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module_output_path = argv[3]
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ast = parse(sexp)
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for index, description in enumerate(generate(ast)):
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testname = f'{name}_{index}'
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outpath = path.join(module_output_path, f'{testname}.wasm')
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with NamedTemporaryFile("w+") as temp:
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temp.write(description["module"])
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temp.flush()
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rc = call(["wasm-as", "-n", temp.name, "-o", outpath])
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if rc != 0:
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print("Failed to compile", name, "module index", index, "skipping that test", file=stderr)
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continue
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sep = ""
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print(f'''{{
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let readOkay = true;
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{gen_parse_module(testname)}
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if (readOkay) {{
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{sep.join(gentest(x, testname) for x in description["tests"])}
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}}}}
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''')
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if __name__ == "__main__":
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main()
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16
Meta/generate-libwasm-spec-test.sh
Normal file
16
Meta/generate-libwasm-spec-test.sh
Normal file
@ -0,0 +1,16 @@
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#!/usr/bin/env bash
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if [ $# -ne 4 ]; then
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echo "Usage: $0 <input spec file> <output path> <name> <module output path>"
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exit 1
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fi
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INPUT_FILE="$1"
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OUTPUT_PATH="$2"
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NAME="$3"
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MODULE_OUTPUT_PATH="$4"
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mkdir -p "$OUTPUT_PATH"
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mkdir -p "$MODULE_OUTPUT_PATH"
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python3 "$(dirname "$0")/generate-libwasm-spec-test.py" "$INPUT_FILE" "$NAME" "$MODULE_OUTPUT_PATH" | prettier --stdin-filepath "test-$NAME.js" > "$OUTPUT_PATH/$NAME.js"
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@ -27,6 +27,36 @@ TESTJS_GLOBAL_FUNCTION(read_binary_wasm_file, readBinaryWasmFile)
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return array;
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return array;
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}
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}
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class WebAssemblyModule final : public JS::Object {
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JS_OBJECT(WebAssemblyModule, JS::Object);
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public:
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// FIXME: This should only contain an instantiated module, not the entire abstract machine!
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explicit WebAssemblyModule(JS::Object& prototype)
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: JS::Object(prototype)
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{
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}
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static WebAssemblyModule* create(JS::GlobalObject& global_object, Wasm::Module module)
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{
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auto instance = global_object.heap().allocate<WebAssemblyModule>(global_object, *global_object.object_prototype());
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instance->m_module = move(module);
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if (auto result = instance->m_machine.instantiate(*instance->m_module, {}); result.is_error())
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global_object.vm().throw_exception<JS::TypeError>(global_object, result.release_error().error);
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return instance;
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}
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void initialize(JS::GlobalObject&) override;
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~WebAssemblyModule() override = default;
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private:
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JS_DECLARE_NATIVE_FUNCTION(get_export);
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JS_DECLARE_NATIVE_FUNCTION(wasm_invoke);
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Wasm::AbstractMachine m_machine;
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Optional<Wasm::Module> m_module;
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};
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TESTJS_GLOBAL_FUNCTION(parse_webassembly_module, parseWebAssemblyModule)
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TESTJS_GLOBAL_FUNCTION(parse_webassembly_module, parseWebAssemblyModule)
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{
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{
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auto object = vm.argument(0).to_object(global_object);
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auto object = vm.argument(0).to_object(global_object);
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@ -43,9 +73,12 @@ TESTJS_GLOBAL_FUNCTION(parse_webassembly_module, parseWebAssemblyModule)
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vm.throw_exception<JS::SyntaxError>(global_object, Wasm::parse_error_to_string(result.error()));
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vm.throw_exception<JS::SyntaxError>(global_object, Wasm::parse_error_to_string(result.error()));
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return {};
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return {};
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}
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}
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if (stream.handle_any_error())
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return JS::js_undefined();
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if (stream.handle_any_error()) {
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return JS::js_null();
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vm.throw_exception<JS::SyntaxError>(global_object, "Bianry stream contained errors");
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return {};
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}
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return WebAssemblyModule::create(global_object, result.release_value());
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}
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}
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TESTJS_GLOBAL_FUNCTION(compare_typed_arrays, compareTypedArrays)
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TESTJS_GLOBAL_FUNCTION(compare_typed_arrays, compareTypedArrays)
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@ -68,3 +101,112 @@ TESTJS_GLOBAL_FUNCTION(compare_typed_arrays, compareTypedArrays)
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auto& rhs_array = static_cast<JS::TypedArrayBase&>(*rhs);
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auto& rhs_array = static_cast<JS::TypedArrayBase&>(*rhs);
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return JS::Value(lhs_array.viewed_array_buffer()->buffer() == rhs_array.viewed_array_buffer()->buffer());
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return JS::Value(lhs_array.viewed_array_buffer()->buffer() == rhs_array.viewed_array_buffer()->buffer());
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}
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}
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void WebAssemblyModule::initialize(JS::GlobalObject& global_object)
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{
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Base::initialize(global_object);
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define_native_function("getExport", get_export);
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define_native_function("invoke", wasm_invoke);
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}
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JS_DEFINE_NATIVE_FUNCTION(WebAssemblyModule::get_export)
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{
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auto name = vm.argument(0).to_string(global_object);
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|
if (vm.exception())
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return {};
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auto this_value = vm.this_value(global_object);
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auto object = this_value.to_object(global_object);
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|
if (vm.exception())
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return {};
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if (!object || !is<WebAssemblyModule>(object)) {
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vm.throw_exception<JS::TypeError>(global_object, "Not a WebAssemblyModule");
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return {};
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}
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auto instance = static_cast<WebAssemblyModule*>(object);
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for (auto& entry : instance->m_machine.module_instance().exports()) {
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if (entry.name() == name) {
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auto& value = entry.value();
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if (auto ptr = value.get_pointer<Wasm::FunctionAddress>())
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return JS::Value(static_cast<unsigned long>(ptr->value()));
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||||||
|
vm.throw_exception<JS::TypeError>(global_object, String::formatted("'{}' does not refer to a function", name));
|
||||||
|
return {};
|
||||||
|
}
|
||||||
|
}
|
||||||
|
vm.throw_exception<JS::TypeError>(global_object, String::formatted("'{}' could not be found", name));
|
||||||
|
return {};
|
||||||
|
}
|
||||||
|
|
||||||
|
JS_DEFINE_NATIVE_FUNCTION(WebAssemblyModule::wasm_invoke)
|
||||||
|
{
|
||||||
|
auto address = static_cast<unsigned long>(vm.argument(0).to_double(global_object));
|
||||||
|
if (vm.exception())
|
||||||
|
return {};
|
||||||
|
auto this_value = vm.this_value(global_object);
|
||||||
|
auto object = this_value.to_object(global_object);
|
||||||
|
if (vm.exception())
|
||||||
|
return {};
|
||||||
|
if (!object || !is<WebAssemblyModule>(object)) {
|
||||||
|
vm.throw_exception<JS::TypeError>(global_object, "Not a WebAssemblyModule");
|
||||||
|
return {};
|
||||||
|
}
|
||||||
|
auto instance = static_cast<WebAssemblyModule*>(object);
|
||||||
|
Wasm::FunctionAddress function_address { address };
|
||||||
|
auto function_instance = instance->m_machine.store().get(function_address);
|
||||||
|
if (!function_instance) {
|
||||||
|
vm.throw_exception<JS::TypeError>(global_object, "Invalid function address");
|
||||||
|
return {};
|
||||||
|
}
|
||||||
|
|
||||||
|
const Wasm::FunctionType* type { nullptr };
|
||||||
|
function_instance->visit([&](auto& value) { type = &value.type(); });
|
||||||
|
if (!type) {
|
||||||
|
vm.throw_exception<JS::TypeError>(global_object, "Invalid function found at given address");
|
||||||
|
return {};
|
||||||
|
}
|
||||||
|
|
||||||
|
Vector<Wasm::Value> arguments;
|
||||||
|
if (type->parameters().size() + 1 > vm.argument_count()) {
|
||||||
|
vm.throw_exception<JS::TypeError>(global_object, String::formatted("Expected {} arguments for call, but found {}", type->parameters().size() + 1, vm.argument_count()));
|
||||||
|
return {};
|
||||||
|
}
|
||||||
|
size_t index = 1;
|
||||||
|
for (auto& param : type->parameters()) {
|
||||||
|
auto value = vm.argument(index++).to_double(global_object);
|
||||||
|
switch (param.kind()) {
|
||||||
|
case Wasm::ValueType::Kind::I32:
|
||||||
|
arguments.append(Wasm::Value(static_cast<i32>(value)));
|
||||||
|
break;
|
||||||
|
case Wasm::ValueType::Kind::I64:
|
||||||
|
arguments.append(Wasm::Value(static_cast<i64>(value)));
|
||||||
|
break;
|
||||||
|
case Wasm::ValueType::Kind::F32:
|
||||||
|
arguments.append(Wasm::Value(static_cast<float>(value)));
|
||||||
|
break;
|
||||||
|
case Wasm::ValueType::Kind::F64:
|
||||||
|
arguments.append(Wasm::Value(static_cast<double>(value)));
|
||||||
|
break;
|
||||||
|
case Wasm::ValueType::Kind::FunctionReference:
|
||||||
|
arguments.append(Wasm::Value(Wasm::FunctionAddress { static_cast<u64>(value) }));
|
||||||
|
break;
|
||||||
|
case Wasm::ValueType::Kind::ExternReference:
|
||||||
|
arguments.append(Wasm::Value(Wasm::ExternAddress { static_cast<u64>(value) }));
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
auto result = instance->m_machine.invoke(function_address, arguments);
|
||||||
|
if (result.is_trap()) {
|
||||||
|
vm.throw_exception<JS::TypeError>(global_object, "Execution trapped");
|
||||||
|
return {};
|
||||||
|
}
|
||||||
|
|
||||||
|
if (result.values().is_empty())
|
||||||
|
return JS::js_null();
|
||||||
|
|
||||||
|
JS::Value return_value;
|
||||||
|
result.values().first().value().visit(
|
||||||
|
[&](const auto& value) { return_value = JS::Value(static_cast<double>(value)); },
|
||||||
|
[&](const Wasm::FunctionAddress& index) { return_value = JS::Value(static_cast<double>(index.value())); },
|
||||||
|
[&](const Wasm::ExternAddress& index) { return_value = JS::Value(static_cast<double>(index.value())); });
|
||||||
|
return return_value;
|
||||||
|
}
|
||||||
|
Loading…
Reference in New Issue
Block a user