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Simon Zünd 5bddc0e142 Implement top-level await for REPL mode 
Design doc: bit.ly/v8-repl-mode

This CL allows the usage of 'await' without wrapping code in an async
function when using REPL mode in global evaluate. REPL mode evaluate
is changed to *always* return a Promise. The resolve value of the
promise is the completion value of the REPL script.

The implementation is based on two existing mechanisms:
  - Similar to async functions, the content of a REPL script is
    enclosed in a synthetic 'try' block. Any thrown error
    is used to reject the Promise of the REPL script.

  - The content of the synthetic 'try' block is also re-written the
    same way a normal script is. This is, artificial assignments to
    a ".result" variable are inserted to simulate a completion
    value. The difference for REPL scripts is, that ".result" is
    used to resolve the Promise of the REPL script.

  - ".result" is not returned directly but wrapped in an object
    literal: "{ .repl_result: .result}". This is done to prevent
    resolved promises from being chained and resolved prematurely:

    > Promse.resolve(42);

    should evaluate to a promise, not 42.

Bug: chromium:1021921
Change-Id: I00a5aafd9126ca7c97d09cd8787a3aec2821a67f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1900464
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65273}
2019-12-02 09:09:43 +00:00
..
blink_tests [test] Remove obsolete blink test skips 2019-01-18 12:30:23 +00:00
cfi Reland "Move API-related files" 2019-05-17 12:52:27 +00:00
clusterfuzz [foozzie] Add test case for different architectures 2019-11-25 12:03:50 +00:00
debug_helper [tools] Add in-object properties to debug_helper 2019-11-26 16:56:26 +00:00
dev [preparser] deprecate stand-alone "preparser" test-suite 2019-11-20 08:52:59 +00:00
gcmole [gcmole] Make gcmole aware of DisallowHeapAllocation 2019-11-26 18:43:56 +00:00
generate_shim_headers
heap-stats [Intl] Prototype Intl.DisplayNames 2019-11-18 21:48:22 +00:00
ignition Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
jsfunfuzz [test] update the jsfunfuzz archive in Google Storage 2018-12-18 15:00:35 +00:00
link_clicker.extension [tools] Add link_click chrome extension 2017-05-09 15:25:21 +00:00
mb [test] Add unittests to fuchsia trybot 2019-11-18 07:56:21 +00:00
memory [build] Fix win-asan compilation 2017-10-16 08:37:15 +00:00
msan [gn] Add missing dep and blacklist for msan 2016-07-29 09:01:24 +00:00
ninja
node Remove android_tools deps for v8 repo 2019-07-03 17:59:11 +00:00
perf [tools] Refactor patch/no-patch terminology in run_perf.py 2017-11-22 07:19:50 +00:00
profview [profview] Use requestAnimationFrame to schedule a render 2019-01-15 13:08:46 +00:00
profviz [Tools] Add support to tickprocessor to symbolize libraries embedded in APKs 2019-05-28 16:18:47 +00:00
release [release] Remove logic for handling the ChangeLog 2019-11-27 09:43:03 +00:00
sanitizers Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
snapshot [Builtins] Infrastructure for source positions in stubs/builtins 2019-01-22 19:09:36 +00:00
sodium
testrunner [test] Bump timeout on slow architectures 2019-11-27 10:06:26 +00:00
toolchain [build] Add support for the other MIPS architectures 2018-03-19 10:43:07 +00:00
torque [torque] fix formatting of union types 2019-10-24 10:05:25 +00:00
tracing/proto-converter [tracing] Add the proto to json converter for trace events 2019-03-25 08:56:18 +00:00
turbolizer [turbolizer] Make graph view's toolbar buttons focus the svg 2019-11-26 10:29:36 +00:00
ubsan [ubsan] Make ARM and ARM64 UBSan-clean 2019-09-16 15:03:45 +00:00
unittests Remove 'embedded_builtins' variant 2019-10-22 12:58:02 +00:00
v8.xcodeproj
valgrind/asan [build] Add testrunner data deps 2018-03-26 12:17:08 +00:00
vim [vim] Update CrBuild to use autoninja. 2019-05-27 06:27:29 +00:00
visual_studio
wasm [wasm] Stage multi-value support 2019-10-22 13:49:52 +00:00
wasm-compilation-hints Preparing v8 to use with python3 2019-10-18 13:10:56 +00:00
__init__.py [test] make python recognize tools and tools/unittests as packages 2018-12-17 12:12:43 +00:00
adb-d8.py Remove JS natives support, step 3 2019-10-22 07:48:05 +00:00
android-build.sh
android-ll-prof.sh
android-run.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
android-sync.sh [preparser] deprecate stand-alone "preparser" test-suite 2019-11-20 08:52:59 +00:00
arguments.js [tools] Move common arguments processing into separate file 2017-10-24 00:25:04 +00:00
avg.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
bash-completion.sh Move remaining files in src/ 2019-05-24 18:24:36 +00:00
bigint-tester.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
BUILD.gn Reland "Add postmortem debugging helper library" 2019-07-31 14:30:19 +00:00
callstats.html [tools] Clean up HTML for tools 2019-01-06 14:20:33 +00:00
callstats.py [tools] Fix callstats.py to correctly bucket OptimizeBackground events 2019-11-29 12:31:09 +00:00
callstats.py.vpython [tools] Fix platform specification for scipi 2018-08-17 18:49:49 +00:00
check-inline-includes.sh [iwyu] Extend inline include checking to tests. 2017-09-08 09:31:32 +00:00
check-static-initializers.sh [logging] Systematically emit CodeCreateEvents for builtins 2019-05-23 11:55:36 +00:00
check-unused-bailouts.sh [tools] Speed-up check-unused-bailouts.sh 2017-08-02 11:11:19 +00:00
check-unused-symbols.sh [cleanup] Remove unused heap-symbols and add tool. 2018-11-08 17:57:05 +00:00
codemap.js Revert "[prof] Attribute ticks in embedded builtins correctly" 2019-05-27 10:11:14 +00:00
collect_deprecation_stats.sh [objects] Deprecate GetIsolate/Heap behind a flag 2018-06-01 15:19:21 +00:00
compare-table-gen.js
consarray.js
cpu.sh
cross_build_gcc.sh
csvparser.js Escape backslashes when logging. 2018-08-10 09:09:19 +00:00
deprecation_stats.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
DEPS
detect-builtins.js
disasm.py [grokdump] Include -z flag to make objdump disassemble all-zero sections 2017-04-21 13:35:37 +00:00
draw_instruction_graph.sh
dump-cpp.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
dumpcpp-driver.js [Tools] Add support to tickprocessor to symbolize libraries embedded in APKs 2019-05-28 16:18:47 +00:00
dumpcpp.js [log] Improve log parsing 2018-06-20 13:40:22 +00:00
eval_gc_nvp.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
eval_gc_time.sh [in-place weak refs] Remove WeakCell 2018-08-14 08:05:05 +00:00
find_depot_tools.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
find-commit-for-patch.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
freebsd-tick-processor
fuzz-harness.sh [compiler] Make --debug-code the default in debug builds. 2016-12-02 11:36:55 +00:00
gc_nvp_common.py
gc-nvp-to-csv.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
gc-nvp-trace-processor.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
gdb-v8-support.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
gdbinit [gdb] Do not set disassembly-flavor on non-x86 platforms. 2019-10-09 11:25:21 +00:00
gen-inlining-tests.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
gen-keywords-gen-h.py [parser] Remove #line directives from keywords-gen.h 2018-11-28 15:22:05 +00:00
gen-postmortem-metadata.py [postmortem] Load files using utf-8 to support Python 3 2019-11-03 06:25:07 +00:00
generate-builtins-tests.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
generate-header-include-checks.py Change all TODOs from clemensh to clemensb 2019-09-26 10:25:27 +00:00
generate-ten-powers.scm
get_landmines.py [landmines] Force clean build to fix Misc V8 Linux gcc 2019-06-06 21:52:11 +00:00
grokdump.py Make grokdump.py work on Windows 2019-10-18 11:13:55 +00:00
ic-explorer.html [ic] Rename PatchCache to SetCache and remove unused methods. 2019-10-10 15:08:54 +00:00
ic-processor [tools] Move common arguments processing into separate file 2017-10-24 00:25:04 +00:00
ic-processor-driver.js [tools] Fix IC-Explorer drilldown and format file 2017-10-30 11:17:43 +00:00
ic-processor.js [tools] Make ic-processor print global loads/stores. 2019-01-18 12:35:43 +00:00
inspect-d8.js Improve JavaScript debugging in d8 2019-09-30 11:19:49 +00:00
linux-tick-processor [tools] Make tick processor report error to stderr. 2018-11-06 14:25:55 +00:00
ll_prof.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
lldb_commands.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
locs.py [tools] Use ThreadPoolExecutor with reasonable job count default 2019-04-08 10:41:46 +00:00
logreader.js [log] Improve log parsing 2018-06-20 13:40:22 +00:00
mac-nm [profiler] Graphical front-end for tick processor. 2017-03-04 13:04:58 +00:00
mac-tick-processor
Makefile.tags [Makefile] Move tags generation to standalone Makefile 2018-01-26 12:03:32 +00:00
map-processor tick processor: fix arguments and comments 2018-10-29 09:48:23 +00:00
map-processor-driver.js [tools] All new shiny maptracer.html 2017-12-18 12:48:00 +00:00
map-processor.html [tools] Clean up HTML for tools 2019-01-06 14:20:33 +00:00
map-processor.js [tools] Add file positions to map-explorer 2018-11-29 11:42:25 +00:00
objdump-v8 [disasm] Make jump target printing perf friendly 2017-03-20 14:47:04 +00:00
OWNERS Use relative paths to OWNERS files 2019-08-12 13:52:52 +00:00
parse-processor tick processor: fix arguments and comments 2018-10-29 09:48:23 +00:00
parse-processor-driver.js [tools] New parse processor tool 2017-12-20 13:07:17 +00:00
parse-processor.html [tools] Clean up HTML for tools 2019-01-06 14:20:33 +00:00
parse-processor.js [tools] Improve function event logging and parse processor 2018-07-16 14:05:14 +00:00
perf-compare.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
plot-timer-events tick processor: fix arguments and comments 2018-10-29 09:48:23 +00:00
predictable_wrapper.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
PRESUBMIT.py [tools] Clean up presubmit and run all unittests 2019-02-01 10:27:29 +00:00
profile_view.js
profile.js [profview] Avoid treating embedded builtins as CPP code. 2018-09-27 12:14:15 +00:00
regexp-sequences.py Preparing v8 to use with python3 2019-10-18 13:10:56 +00:00
run_perf.py [perf] mask timeout failures if they succeed after retries 2019-07-16 09:38:40 +00:00
run-clang-tidy.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
run-llprof.sh
run-num-fuzzer.py [test] Implement gc fuzzer with test processors 2018-01-19 16:58:49 +00:00
run-perf.sh [cleanup] Replace underscore by minus in d8 flags 2019-04-03 12:32:08 +00:00
run-tests.py TestRunner initial refactor 2017-10-13 08:52:28 +00:00
run-wasm-api-tests.py [wasm-c-api] Roll 7865f7d: Expose possible traps during Instance::make 2019-08-23 09:46:29 +00:00
run.py
shell-utils.h Move remaining files in src/ 2019-05-24 18:24:36 +00:00
SourceMap.js
splaytree.js
stats-viewer.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
test262-results-parser.js test262 roll 2018-08-28 21:18:23 +00:00
tick-processor.html [Tools] Add support to tickprocessor to symbolize libraries embedded in APKs 2019-05-28 16:18:47 +00:00
tickprocessor-driver.js [Tools] Add support to tickprocessor to symbolize libraries embedded in APKs 2019-05-28 16:18:47 +00:00
tickprocessor.js [tools] Strip path from library when applying targetRootFS in tickprocessor 2019-06-28 15:07:24 +00:00
trace-maps-processor.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
try_perf.py [tools] Add support for --confidence-level flag to tools/try_perf.py 2019-06-14 12:33:49 +00:00
turbolizer-perf.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
update-object-macros-undef.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
v8_presubmit.py Enable cpplint 'runtime/references' warning 2019-07-08 09:59:36 +00:00
v8heapconst.py Implement top-level await for REPL mode 2019-12-02 09:09:43 +00:00
whitespace.txt [goma] Whitespace to trigger builders 2019-11-29 13:19:04 +00:00
windbg.js [heap] Add base class for LargeObjectSpaces 2019-10-25 09:22:57 +00:00
windows-tick-processor.bat [tools] Move common arguments processing into separate file 2017-10-24 00:25:04 +00:00