Revert "[lldb] Add a compiler/interpreter of LLDB data formatter bytecode to examples"

This reverts commit 7e3da87ca896484a11ac09df297183147154ac91.

I managed to break the bots.

3 files changed, 0 insertions, 206 deletions

diff --git a/lldb/test/Shell/ScriptInterpreter/Python/Inputs/FormatterBytecode/MyOptional.cpp b/lldb/test/Shell/ScriptInterpreter/Python/Inputs/FormatterBytecode/MyOptional.cpp
deleted file mode 100644
index abba344..0000000
--- a/lldb/test/Shell/ScriptInterpreter/Python/Inputs/FormatterBytecode/MyOptional.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-// A bare-bones llvm::Optional reimplementation.
-
-template <typename T> struct MyOptionalStorage {
-  MyOptionalStorage(T val) : value(val), hasVal(true) {}
-  MyOptionalStorage() {}
-  T value;
-  bool hasVal = false;
-};
-
-template <typename T> struct MyOptional {
-  MyOptionalStorage<T> Storage;
-  MyOptional(T val) : Storage(val) {}
-  MyOptional() {}
-  T &operator*() { return Storage.value; }
-};
-
-void stop() {}
-
-int main(int argc, char **argv) {
-  MyOptional<int> x, y = 42;
-  stop(); // break here
-  return *y;
-}
diff --git a/lldb/test/Shell/ScriptInterpreter/Python/Inputs/FormatterBytecode/formatter.py b/lldb/test/Shell/ScriptInterpreter/Python/Inputs/FormatterBytecode/formatter.py
deleted file mode 100644
index cc8778b..0000000
--- a/lldb/test/Shell/ScriptInterpreter/Python/Inputs/FormatterBytecode/formatter.py
+++ /dev/null
@@ -1,167 +0,0 @@
-"""
-This is the llvm::Optional data formatter from llvm/utils/lldbDataFormatters.py
-with the implementation replaced by bytecode.
-"""
-
-from __future__ import annotations
-from formatter_bytecode import *
-import lldb
-
-
-def __lldb_init_module(debugger, internal_dict):
-    debugger.HandleCommand(
-        "type synthetic add -w llvm "
-        f"-l {__name__}.MyOptionalSynthProvider "
-        '-x "^MyOptional<.+>$"'
-    )
-    debugger.HandleCommand(
-        "type summary add -w llvm "
-        f"-e -F {__name__}.MyOptionalSummaryProvider "
-        '-x "^MyOptional<.+>$"'
-    )
-
-
-def stringify(bytecode: bytearray) -> str:
-    s = ""
-    in_hex = False
-    for b in bytecode:
-        if (b < 32 or b > 127 or chr(b) in ['"', "`", "'"]) or (
-            in_hex
-            and chr(b).lower()
-            in [
-                "a",
-                "b",
-                "c",
-                "d",
-                "e",
-                "f",
-                "0",
-                "1",
-                "2",
-                "3",
-                "4",
-                "5",
-                "6",
-                "7",
-                "8",
-                "9",
-            ]
-        ):
-            s += r"\x" + hex(b)[2:]
-            in_hex = True
-        else:
-            s += chr(b)
-            in_hex = False
-    return s
-
-
-def evaluate(assembler: str, data: list):
-    bytecode = compile(assembler)
-    trace = True
-    if trace:
-        print(
-            "Compiled to {0} bytes of bytecode:\n{1}".format(
-                len(bytecode), stringify(bytecode)
-            )
-        )
-    result = interpret(bytecode, [], data, False)  # trace)
-    if trace:
-        print("--> {0}".format(result))
-    return result
-
-
-# def GetOptionalValue(valobj):
-#    storage = valobj.GetChildMemberWithName("Storage")
-#    if not storage:
-#        storage = valobj
-#
-#    failure = 2
-#    hasVal = storage.GetChildMemberWithName("hasVal").GetValueAsUnsigned(failure)
-#    if hasVal == failure:
-#        return "<could not read MyOptional>"
-#
-#    if hasVal == 0:
-#        return None
-#
-#    underlying_type = storage.GetType().GetTemplateArgumentType(0)
-#    storage = storage.GetChildMemberWithName("value")
-#    return storage.Cast(underlying_type)
-
-
-def MyOptionalSummaryProvider(valobj, internal_dict):
-    #    val = GetOptionalValue(valobj)
-    #    if val is None:
-    #        return "None"
-    #    if val.summary:
-    #        return val.summary
-    #    return val.GetValue()
-    summary = ""
-    summary += ' dup "Storage" @get_child_with_name call'  # valobj storage
-    summary += " dup is_null ~ { swap } if drop"  # storage
-    summary += ' dup "hasVal" @get_child_with_name call'  # storage obj(hasVal)
-    summary += ' dup is_null { drop "<could not read MyOptional>" } {'
-    summary += "   @get_value_as_unsigned call"  # storage int(hasVal)
-    summary += '   0u = { "None" } {'
-    summary += "     dup @get_type call"
-    summary += "     0u @get_template_argument_type call"  # storage type
-    summary += "     swap"  # type storage
-    summary += '     "value" @get_child_with_name call'  # type value
-    summary += "     swap @cast call"  # type(value)
-    summary += '     dup is_null { "None" } {'
-    summary += (
-        "       dup @summary call dup @strlen call { @get_value call } { drop } ifelse"
-    )
-    summary += "     } ifelse"
-    summary += "   } ifelse"
-    summary += " } ifelse"
-    return evaluate(summary, [valobj])
-
-
-class MyOptionalSynthProvider:
-    """Provides deref support to llvm::Optional<T>"""
-
-    def __init__(self, valobj, internal_dict):
-        self.valobj = valobj
-
-    def num_children(self):
-        # return self.valobj.num_children
-        num_children = " @get_num_children call"
-        return evaluate(num_children, [self.valobj])
-
-    def get_child_index(self, name):
-        # if name == "$$dereference$$":
-        #    return self.valobj.num_children
-        # return self.valobj.GetIndexOfChildWithName(name)
-        get_child_index = ' dup "$$dereference$$" ='
-        get_child_index += " { drop @get_num_children call } {"  # obj name
-        get_child_index += "   @get_child_index call"  # index
-        get_child_index += " } ifelse"
-        return evaluate(get_child_index, [self.valobj, name])
-
-    def get_child_at_index(self, index):
-        # if index < self.valobj.num_children:
-        #    return self.valobj.GetChildAtIndex(index)
-        # return GetOptionalValue(self.valobj) or lldb.SBValue()
-        get_child_at_index = " over over swap"  # obj index index obj
-        get_child_at_index += " @get_num_children call"  # obj index index n
-        get_child_at_index += " < { @get_child_at_index call } {"  # obj index
-
-        get_opt_val = ' dup "Storage" @get_child_with_name call'  # valobj storage
-        get_opt_val += " dup { swap } if drop"  # storage
-        get_opt_val += ' dup "hasVal" @get_child_with_name call'  # storage
-        get_opt_val += " @get_value_as_unsigned call"  # storage int(hasVal)
-        get_opt_val += ' dup 2 = { drop "<could not read MyOptional>" } {'
-        get_opt_val += '   0 = { "None" } {'
-        get_opt_val += (
-            "     dup @get_type call 0 @get_template_argument_type call"  # storage type
-        )
-        get_opt_val += "     swap"  # type storage
-        get_opt_val += '     "value" @get_child_with_name call'  # type value
-        get_opt_val += "     swap @cast call"  # type(value)
-        get_opt_val += "   } ifelse"
-        get_opt_val += " } ifelse"
-
-        get_child_at_index += get_opt_val
-        get_child_at_index += " } ifelse"
-
-        return evaluate(get_child_at_index, [self.valobj, index])
diff --git a/lldb/test/Shell/ScriptInterpreter/Python/bytecode.test b/lldb/test/Shell/ScriptInterpreter/Python/bytecode.test
deleted file mode 100644
index 6a7cd46..0000000
--- a/lldb/test/Shell/ScriptInterpreter/Python/bytecode.test
+++ /dev/null
@@ -1,16 +0,0 @@
-# RUN: %python %S/../../../../examples/python/formatter_bytecode.py --test
-# RUN: %python %S/../../../../examples/python/formatter_bytecode.py --compile "1u dup" | FileCheck %s --check-prefix=COMPILE
-# RUN: %python %S/../../../../examples/Python/formatter_bytecode.py --disassemble "200101" | FileCheck %s --check-prefix=DISASSEMBLE
-# COMPILE: 200101
-# DISASSEMBLE: 1u dup
-
-# RUN: %clang_host -std=c++17 -g %S/Inputs/FormatterBytecode/MyOptional.cpp -o %t.exe
-# RUN: %lldb %t.exe -o "command script import %S/../../../../examples/Python/formatter_bytecode.py" -o "command script import %S/Inputs/FormatterBytecode/formatter.py" -o "b -p here" -o "r" -o "v x" -o "v y" -o q | FileCheck %s --check-prefix=OPTIONAL
-# OPTIONAL: (lldb) v x
-# OPTIONAL: (MyOptional<int>) x = {
-# OPTIONAL: hasVal = false
-# OPTIONAL: }
-# OPTIONAL: (lldb) v y
-# OPTIONAL: (MyOptional<int>) y = {
-# OPTIONAL:   Storage = (value = 42, hasVal = true)
-# OPTIONAL: }