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LibJS: Rip out the AST interpreter :^)

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This has been superseded by the bytecode VM, which is both faster
and more capable.
This commit is contained in:
Andreas Kling 2023-08-07 19:59:00 +02:00
parent fcc72a787b
commit 2eaa528a0e
41 changed files with 147 additions and 3734 deletions
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28
Userland/Libraries/LibJS/SourceTextModule.cpp
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@ -8,9 +8,9 @@
#include <AK/Debug.h>
#include <AK/QuickSort.h>
#include <LibJS/Bytecode/Interpreter.h>
#include <LibJS/Interpreter.h>
#include <LibJS/Parser.h>
#include <LibJS/Runtime/ECMAScriptFunctionObject.h>
#include <LibJS/Runtime/GlobalEnvironment.h>
#include <LibJS/Runtime/ModuleEnvironment.h>
#include <LibJS/SourceTextModule.h>
@ -695,23 +695,19 @@ ThrowCompletionOr<void> SourceTextModule::execute_module(VM& vm, GCPtr<PromiseCa
// c. Let result be the result of evaluating module.[[ECMAScriptCode]].
Completion result;
if (auto* bytecode_interpreter = vm.bytecode_interpreter_if_exists()) {
auto maybe_executable = Bytecode::compile(vm, m_ecmascript_code, FunctionKind::Normal, "ShadowRealmEval"sv);
if (maybe_executable.is_error())
result = maybe_executable.release_error();
else {
auto executable = maybe_executable.release_value();
auto maybe_executable = Bytecode::compile(vm, m_ecmascript_code, FunctionKind::Normal, "ShadowRealmEval"sv);
if (maybe_executable.is_error())
result = maybe_executable.release_error();
else {
auto executable = maybe_executable.release_value();
auto value_and_frame = bytecode_interpreter->run_and_return_frame(realm(), *executable, nullptr);
if (value_and_frame.value.is_error()) {
result = value_and_frame.value.release_error();
} else {
// Resulting value is in the accumulator.
result = value_and_frame.frame->registers.at(0).value_or(js_undefined());
}
auto value_and_frame = vm.bytecode_interpreter().run_and_return_frame(realm(), *executable, nullptr);
if (value_and_frame.value.is_error()) {
result = value_and_frame.value.release_error();
} else {
// Resulting value is in the accumulator.
result = value_and_frame.frame->registers.at(0).value_or(js_undefined());
}
} else {
result = m_ecmascript_code->execute(vm.interpreter());
}
// d. Let env be moduleContext's LexicalEnvironment.