qapi: replace if condition list with dict {'all': [...]}

Replace the simple list sugar form with a recursive structure that will
accept other operators in the following commits (all, any or not).

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210804083105.97531-7-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Accidental code motion undone.  Degenerate :forms: comment dropped.
Helper _check_if() moved.  Error messages tweaked.  ui.json updated.
Accidental changes to qapi-schema-test.json dropped.]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Marc-André Lureau 2021-08-04 12:31:01 +04:00 committed by Markus Armbruster
parent d806f89f87
commit 5d83b9a130
27 changed files with 143 additions and 88 deletions

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@ -1136,7 +1136,8 @@
{ 'name': 'gtk', 'if': 'defined(CONFIG_GTK)' },
{ 'name': 'sdl', 'if': 'defined(CONFIG_SDL)' },
{ 'name': 'egl-headless',
'if': 'defined(CONFIG_OPENGL) && defined(CONFIG_GBM)' },
'if': { 'all': [ 'defined(CONFIG_OPENGL)',
'defined(CONFIG_GBM)' ] } },
{ 'name': 'curses', 'if': 'defined(CONFIG_CURSES)' },
{ 'name': 'cocoa', 'if': 'defined(CONFIG_COCOA)' },
{ 'name': 'spice-app', 'if': 'defined(CONFIG_SPICE)'} ] }
@ -1167,7 +1168,8 @@
'gtk': { 'type': 'DisplayGTK', 'if': 'defined(CONFIG_GTK)' },
'curses': { 'type': 'DisplayCurses', 'if': 'defined(CONFIG_CURSES)' },
'egl-headless': { 'type': 'DisplayEGLHeadless',
'if': 'defined(CONFIG_OPENGL) && defined(CONFIG_GBM)' }
'if': { 'all': [ 'defined(CONFIG_OPENGL)',
'defined(CONFIG_GBM)' ] } }
}
}

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@ -13,7 +13,8 @@
import re
from typing import (
List,
Any,
Dict,
Match,
Optional,
Union,
@ -199,17 +200,29 @@ def guardend(name: str) -> str:
name=c_fname(name).upper())
def cgen_ifcond(ifcond: Union[str, List[str]]) -> str:
def cgen_ifcond(ifcond: Union[str, Dict[str, Any]]) -> str:
if not ifcond:
return ''
return '(' + ') && ('.join(ifcond) + ')'
if isinstance(ifcond, str):
return ifcond
oper, operands = next(iter(ifcond.items()))
oper = {'all': '&&'}[oper]
operands = [cgen_ifcond(o) for o in operands]
return '(' + (') ' + oper + ' (').join(operands) + ')'
def docgen_ifcond(ifcond: Union[str, List[str]]) -> str:
def docgen_ifcond(ifcond: Union[str, Dict[str, Any]]) -> str:
# TODO Doc generated for conditions needs polish
if not ifcond:
return ''
return ' and '.join(ifcond)
if isinstance(ifcond, str):
return ifcond
oper, operands = next(iter(ifcond.items()))
oper = {'all': ' and '}[oper]
operands = [docgen_ifcond(o) for o in operands]
return '(' + oper.join(operands) + ')'
def gen_if(cond: str) -> str:

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@ -259,14 +259,9 @@ def check_flags(expr: _JSONObject, info: QAPISourceInfo) -> None:
def check_if(expr: _JSONObject, info: QAPISourceInfo, source: str) -> None:
"""
Normalize and validate the ``if`` member of an object.
Validate the ``if`` member of an object.
The ``if`` member may be either a ``str`` or a ``List[str]``.
A ``str`` value will be normalized to ``List[str]``.
:forms:
:sugared: ``Union[str, List[str]]``
:canonical: ``List[str]``
The ``if`` member may be either a ``str`` or a dict.
:param expr: The expression containing the ``if`` member to validate.
:param info: QAPI schema source file information.
@ -275,31 +270,46 @@ def check_if(expr: _JSONObject, info: QAPISourceInfo, source: str) -> None:
:raise QAPISemError:
When the "if" member fails validation, or when there are no
non-empty conditions.
:return: None, ``expr`` is normalized in-place as needed.
:return: None
"""
def _check_if(cond: Union[str, object]) -> None:
if isinstance(cond, str):
if not cond.strip():
raise QAPISemError(
info,
"'if' condition '%s' of %s makes no sense"
% (cond, source))
return
if not isinstance(cond, dict):
raise QAPISemError(
info,
"'if' condition of %s must be a string or an object" % source)
if len(cond) != 1:
raise QAPISemError(
info,
"'if' condition dict of %s must have one key: "
"'all'" % source)
check_keys(cond, info, "'if' condition", [],
["all"])
oper, operands = next(iter(cond.items()))
if not operands:
raise QAPISemError(
info, "'if' condition [] of %s is useless" % source)
if oper in ("all") and not isinstance(operands, list):
raise QAPISemError(
info, "'%s' condition of %s must be an array" % (oper, source))
for operand in operands:
_check_if(operand)
ifcond = expr.get('if')
if ifcond is None:
return
if isinstance(ifcond, list):
if not ifcond:
raise QAPISemError(
info, "'if' condition [] of %s is useless" % source)
else:
# Normalize to a list
ifcond = expr['if'] = [ifcond]
for elt in ifcond:
if not isinstance(elt, str):
raise QAPISemError(
info,
"'if' condition of %s must be a string or a list of strings"
% source)
if not elt.strip():
raise QAPISemError(
info,
"'if' condition '%s' of %s makes no sense"
% (elt, source))
_check_if(ifcond)
def normalize_members(members: object) -> None:

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@ -32,7 +32,7 @@ from .parser import QAPISchemaParser
class QAPISchemaIfCond:
def __init__(self, ifcond=None):
self.ifcond = ifcond or []
self.ifcond = ifcond or {}
def cgen(self):
return cgen_ifcond(self.ifcond)

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@ -0,0 +1,2 @@
bad-if-all.json: In struct 'TestIfStruct':
bad-if-all.json:2: 'all' condition of struct must be an array

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@ -0,0 +1,3 @@
# check 'if all' is not a list
{ 'struct': 'TestIfStruct', 'data': { 'foo': 'int' },
'if': { 'all': 'ALL' } }

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@ -1,3 +1,3 @@
# check empty 'if' list
{ 'struct': 'TestIfStruct', 'data': { 'foo': 'int' },
'if': [] }
'if': { 'all': [] } }

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@ -0,0 +1,3 @@
bad-if-key.json: In struct 'TestIfStruct':
bad-if-key.json:2: 'if' condition has unknown key 'value'
Valid keys are 'all'.

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@ -0,0 +1,3 @@
# check unknown 'if' dict key
{ 'struct': 'TestIfStruct', 'data': { 'foo': 'int' },
'if': { 'value': 'defined(TEST_IF_STRUCT)' } }

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@ -0,0 +1,2 @@
bad-if-keys.json: In struct 'TestIfStruct':
bad-if-keys.json:2: 'if' condition dict of struct must have one key: 'all'

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@ -0,0 +1,3 @@
# check multiple 'if' keys
{ 'struct': 'TestIfStruct', 'data': { 'foo': 'int' },
'if': { 'any': ['ANY'], 'all': ['ALL'] } }

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@ -1,3 +1,3 @@
# check invalid 'if' content
{ 'struct': 'TestIfStruct', 'data': { 'foo': 'int' },
'if': ['foo', ' '] }
'if': { 'all': ['foo', ' '] } }

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@ -1,2 +1,2 @@
bad-if.json: In struct 'TestIfStruct':
bad-if.json:2: 'if' condition of struct must be a string or a list of strings
bad-if.json:2: 'if' condition of struct must be a string or an object

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@ -1,3 +1,3 @@
# check invalid 'if' type
{ 'struct': 'TestIfStruct', 'data': { 'foo': 'int' },
'if': { 'value': 'defined(TEST_IF_STRUCT)' } }
'if': ['defined(TEST_IF_STRUCT)'] }

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@ -70,7 +70,8 @@
# @base1:
# the first member
##
{ 'struct': 'Base', 'data': { 'base1': 'Enum' } }
{ 'struct': 'Base', 'data': { 'base1': 'Enum' },
'if': { 'all': ['IFALL1', 'IFALL2'] } }
##
# @Variant1:

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@ -12,15 +12,16 @@ enum QType
module doc-good.json
enum Enum
member one
if ['defined(IFONE)']
if defined(IFONE)
member two
if ['defined(IFCOND)']
if defined(IFCOND)
feature enum-feat
object Base
member base1: Enum optional=False
if OrderedDict([('all', ['IFALL1', 'IFALL2'])])
object Variant1
member var1: str optional=False
if ['defined(IFSTR)']
if defined(IFSTR)
feature member-feat
feature variant1-feat
object Variant2
@ -29,7 +30,7 @@ object Object
tag base1
case one: Variant1
case two: Variant2
if ['IFTWO']
if IFTWO
feature union-feat1
object q_obj_Variant1-wrapper
member data: Variant1 optional=False
@ -38,13 +39,13 @@ object q_obj_Variant2-wrapper
enum SugaredUnionKind
member one
member two
if ['IFTWO']
if IFTWO
object SugaredUnion
member type: SugaredUnionKind optional=False
tag type
case one: q_obj_Variant1-wrapper
case two: q_obj_Variant2-wrapper
if ['IFTWO']
if IFTWO
feature union-feat2
alternate Alternate
tag type

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@ -76,6 +76,12 @@ Members
the first member
If
~~
"(IFALL1 and IFALL2)"
"Variant1" (Object)
-------------------

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@ -1,2 +1,3 @@
enum-if-invalid.json: In enum 'TestIfEnum':
enum-if-invalid.json:2: 'if' condition of 'data' member 'bar' must be a string or a list of strings
enum-if-invalid.json:2: 'if' condition has unknown key 'val'
Valid keys are 'all'.

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@ -1,2 +1,2 @@
features-if-invalid.json: In struct 'Stru':
features-if-invalid.json:2: 'if' condition of 'features' member 'f' must be a string or a list of strings
features-if-invalid.json:2: 'if' condition of 'features' member 'f' must be a string or an object

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@ -37,8 +37,11 @@ schemas = [
'bad-data.json',
'bad-ident.json',
'bad-if.json',
'bad-if-all.json',
'bad-if-empty.json',
'bad-if-empty-list.json',
'bad-if-key.json',
'bad-if-keys.json',
'bad-if-list.json',
'bad-type-bool.json',
'bad-type-dict.json',

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@ -232,7 +232,7 @@
{ 'union': 'TestIfUnion', 'data':
{ 'foo': 'TestStruct',
'bar': { 'type': 'str', 'if': 'defined(TEST_IF_UNION_BAR)'} },
'if': 'defined(TEST_IF_UNION) && defined(TEST_IF_STRUCT)' }
'if': { 'all': ['defined(TEST_IF_UNION)', 'defined(TEST_IF_STRUCT)'] } }
{ 'command': 'test-if-union-cmd',
'data': { 'union-cmd-arg': 'TestIfUnion' },
@ -241,25 +241,25 @@
{ 'alternate': 'TestIfAlternate', 'data':
{ 'foo': 'int',
'bar': { 'type': 'TestStruct', 'if': 'defined(TEST_IF_ALT_BAR)'} },
'if': 'defined(TEST_IF_ALT) && defined(TEST_IF_STRUCT)' }
'if': { 'all': ['defined(TEST_IF_ALT)', 'defined(TEST_IF_STRUCT)'] } }
{ 'command': 'test-if-alternate-cmd',
'data': { 'alt-cmd-arg': 'TestIfAlternate' },
'if': 'defined(TEST_IF_ALT)' }
'if': { 'all': ['defined(TEST_IF_ALT)'] } }
{ 'command': 'test-if-cmd',
'data': {
'foo': 'TestIfStruct',
'bar': { 'type': 'TestIfEnum', 'if': 'defined(TEST_IF_CMD_BAR)' } },
'returns': 'UserDefThree',
'if': ['defined(TEST_IF_CMD)', 'defined(TEST_IF_STRUCT)'] }
'if': { 'all': ['defined(TEST_IF_CMD)', 'defined(TEST_IF_STRUCT)'] } }
{ 'command': 'test-cmd-return-def-three', 'returns': 'UserDefThree' }
{ 'event': 'TEST_IF_EVENT', 'data':
{ 'foo': 'TestIfStruct',
'bar': { 'type': ['TestIfEnum'], 'if': 'defined(TEST_IF_EVT_BAR)' } },
'if': 'defined(TEST_IF_EVT) && defined(TEST_IF_STRUCT)' }
'if': { 'all': ['defined(TEST_IF_EVT)', 'defined(TEST_IF_STRUCT)'] } }
# test 'features'
@ -288,8 +288,9 @@
{ 'name': 'feature2', 'if': 'defined(TEST_IF_FEATURE_2)'} ] }
{ 'struct': 'CondFeatureStruct3',
'data': { 'foo': 'int' },
'features': [ { 'name': 'feature1', 'if': [ 'defined(TEST_IF_COND_1)',
'defined(TEST_IF_COND_2)'] } ] }
'features': [ { 'name': 'feature1',
'if': { 'all': [ 'defined(TEST_IF_COND_1)',
'defined(TEST_IF_COND_2)'] } } ] }
{ 'enum': 'FeatureEnum1',
'data': [ 'eins', 'zwei', 'drei' ],
@ -328,8 +329,9 @@
'features': [ { 'name': 'feature1', 'if': 'defined(TEST_IF_FEATURE_1)'},
{ 'name': 'feature2', 'if': 'defined(TEST_IF_FEATURE_2)'} ] }
{ 'command': 'test-command-cond-features3',
'features': [ { 'name': 'feature1', 'if': [ 'defined(TEST_IF_COND_1)',
'defined(TEST_IF_COND_2)'] } ] }
'features': [ { 'name': 'feature1',
'if': { 'all': [ 'defined(TEST_IF_COND_1)',
'defined(TEST_IF_COND_2)'] } } ] }
{ 'event': 'TEST_EVENT_FEATURES0',
'data': 'FeatureStruct1' }

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@ -298,65 +298,65 @@ command __org.qemu_x-command q_obj___org.qemu_x-command-arg -> __org.qemu_x-Unio
object TestIfStruct
member foo: int optional=False
member bar: int optional=False
if ['defined(TEST_IF_STRUCT_BAR)']
if ['defined(TEST_IF_STRUCT)']
if defined(TEST_IF_STRUCT_BAR)
if defined(TEST_IF_STRUCT)
enum TestIfEnum
member foo
member bar
if ['defined(TEST_IF_ENUM_BAR)']
if ['defined(TEST_IF_ENUM)']
if defined(TEST_IF_ENUM_BAR)
if defined(TEST_IF_ENUM)
object q_obj_TestStruct-wrapper
member data: TestStruct optional=False
enum TestIfUnionKind
member foo
member bar
if ['defined(TEST_IF_UNION_BAR)']
if ['defined(TEST_IF_UNION) && defined(TEST_IF_STRUCT)']
if defined(TEST_IF_UNION_BAR)
if OrderedDict([('all', ['defined(TEST_IF_UNION)', 'defined(TEST_IF_STRUCT)'])])
object TestIfUnion
member type: TestIfUnionKind optional=False
tag type
case foo: q_obj_TestStruct-wrapper
case bar: q_obj_str-wrapper
if ['defined(TEST_IF_UNION_BAR)']
if ['defined(TEST_IF_UNION) && defined(TEST_IF_STRUCT)']
if defined(TEST_IF_UNION_BAR)
if OrderedDict([('all', ['defined(TEST_IF_UNION)', 'defined(TEST_IF_STRUCT)'])])
object q_obj_test-if-union-cmd-arg
member union-cmd-arg: TestIfUnion optional=False
if ['defined(TEST_IF_UNION)']
if defined(TEST_IF_UNION)
command test-if-union-cmd q_obj_test-if-union-cmd-arg -> None
gen=True success_response=True boxed=False oob=False preconfig=False
if ['defined(TEST_IF_UNION)']
if defined(TEST_IF_UNION)
alternate TestIfAlternate
tag type
case foo: int
case bar: TestStruct
if ['defined(TEST_IF_ALT_BAR)']
if ['defined(TEST_IF_ALT) && defined(TEST_IF_STRUCT)']
if defined(TEST_IF_ALT_BAR)
if OrderedDict([('all', ['defined(TEST_IF_ALT)', 'defined(TEST_IF_STRUCT)'])])
object q_obj_test-if-alternate-cmd-arg
member alt-cmd-arg: TestIfAlternate optional=False
if ['defined(TEST_IF_ALT)']
if OrderedDict([('all', ['defined(TEST_IF_ALT)'])])
command test-if-alternate-cmd q_obj_test-if-alternate-cmd-arg -> None
gen=True success_response=True boxed=False oob=False preconfig=False
if ['defined(TEST_IF_ALT)']
if OrderedDict([('all', ['defined(TEST_IF_ALT)'])])
object q_obj_test-if-cmd-arg
member foo: TestIfStruct optional=False
member bar: TestIfEnum optional=False
if ['defined(TEST_IF_CMD_BAR)']
if ['defined(TEST_IF_CMD)', 'defined(TEST_IF_STRUCT)']
if defined(TEST_IF_CMD_BAR)
if OrderedDict([('all', ['defined(TEST_IF_CMD)', 'defined(TEST_IF_STRUCT)'])])
command test-if-cmd q_obj_test-if-cmd-arg -> UserDefThree
gen=True success_response=True boxed=False oob=False preconfig=False
if ['defined(TEST_IF_CMD)', 'defined(TEST_IF_STRUCT)']
if OrderedDict([('all', ['defined(TEST_IF_CMD)', 'defined(TEST_IF_STRUCT)'])])
command test-cmd-return-def-three None -> UserDefThree
gen=True success_response=True boxed=False oob=False preconfig=False
array TestIfEnumList TestIfEnum
if ['defined(TEST_IF_ENUM)']
if defined(TEST_IF_ENUM)
object q_obj_TEST_IF_EVENT-arg
member foo: TestIfStruct optional=False
member bar: TestIfEnumList optional=False
if ['defined(TEST_IF_EVT_BAR)']
if ['defined(TEST_IF_EVT) && defined(TEST_IF_STRUCT)']
if defined(TEST_IF_EVT_BAR)
if OrderedDict([('all', ['defined(TEST_IF_EVT)', 'defined(TEST_IF_STRUCT)'])])
event TEST_IF_EVENT q_obj_TEST_IF_EVENT-arg
boxed=False
if ['defined(TEST_IF_EVT) && defined(TEST_IF_STRUCT)']
if OrderedDict([('all', ['defined(TEST_IF_EVT)', 'defined(TEST_IF_STRUCT)'])])
object FeatureStruct0
member foo: int optional=False
object FeatureStruct1
@ -379,17 +379,17 @@ object FeatureStruct4
object CondFeatureStruct1
member foo: int optional=False
feature feature1
if ['defined(TEST_IF_FEATURE_1)']
if defined(TEST_IF_FEATURE_1)
object CondFeatureStruct2
member foo: int optional=False
feature feature1
if ['defined(TEST_IF_FEATURE_1)']
if defined(TEST_IF_FEATURE_1)
feature feature2
if ['defined(TEST_IF_FEATURE_2)']
if defined(TEST_IF_FEATURE_2)
object CondFeatureStruct3
member foo: int optional=False
feature feature1
if ['defined(TEST_IF_COND_1)', 'defined(TEST_IF_COND_2)']
if OrderedDict([('all', ['defined(TEST_IF_COND_1)', 'defined(TEST_IF_COND_2)'])])
enum FeatureEnum1
member eins
member zwei
@ -429,17 +429,17 @@ command test-command-features3 None -> None
command test-command-cond-features1 None -> None
gen=True success_response=True boxed=False oob=False preconfig=False
feature feature1
if ['defined(TEST_IF_FEATURE_1)']
if defined(TEST_IF_FEATURE_1)
command test-command-cond-features2 None -> None
gen=True success_response=True boxed=False oob=False preconfig=False
feature feature1
if ['defined(TEST_IF_FEATURE_1)']
if defined(TEST_IF_FEATURE_1)
feature feature2
if ['defined(TEST_IF_FEATURE_2)']
if defined(TEST_IF_FEATURE_2)
command test-command-cond-features3 None -> None
gen=True success_response=True boxed=False oob=False preconfig=False
feature feature1
if ['defined(TEST_IF_COND_1)', 'defined(TEST_IF_COND_2)']
if OrderedDict([('all', ['defined(TEST_IF_COND_1)', 'defined(TEST_IF_COND_2)'])])
event TEST_EVENT_FEATURES0 FeatureStruct1
boxed=False
event TEST_EVENT_FEATURES1 None

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@ -1,2 +1,2 @@
struct-member-if-invalid.json: In struct 'Stru':
struct-member-if-invalid.json:2: 'if' condition of 'data' member 'member' must be a string or a list of strings
struct-member-if-invalid.json:2: 'if' condition of 'data' member 'member' must be a string or an object

View File

@ -3,4 +3,4 @@
{ 'struct': 'Stru', 'data': { 'member': 'str' } }
{ 'union': 'Uni',
'base': { 'tag': 'Branches' }, 'discriminator': 'tag',
'data': { 'branch1': { 'type': 'Stru', 'if': [''] } } }
'data': { 'branch1': { 'type': 'Stru', 'if': { 'all': [''] } } } }