# This work is licensed under the terms of the GNU GPL, version 2.
# See the COPYING file in the top-level directory.
-import re
-from ordereddict import OrderedDict
import errno
import getopt
import os
-import sys
+import re
import string
+import sys
+from ordereddict import OrderedDict
builtin_types = {
'str': 'QTYPE_QSTRING',
'QType': 'QTYPE_QSTRING',
}
+# Are documentation comments required?
+doc_required = False
+
# Whitelist of commands allowed to return a non-dictionary
-returns_whitelist = [
- # From QMP:
- 'human-monitor-command',
- 'qom-get',
- 'query-migrate-cache-size',
- 'query-tpm-models',
- 'query-tpm-types',
- 'ringbuf-read',
-
- # From QGA:
- 'guest-file-open',
- 'guest-fsfreeze-freeze',
- 'guest-fsfreeze-freeze-list',
- 'guest-fsfreeze-status',
- 'guest-fsfreeze-thaw',
- 'guest-get-time',
- 'guest-set-vcpus',
- 'guest-sync',
- 'guest-sync-delimited',
-]
+returns_whitelist = []
# Whitelist of entities allowed to violate case conventions
-case_whitelist = [
- # From QMP:
- 'ACPISlotType', # DIMM, visible through query-acpi-ospm-status
- 'CpuInfoBase', # CPU, visible through query-cpu
- 'CpuInfoMIPS', # PC, visible through query-cpu
- 'CpuInfoTricore', # PC, visible through query-cpu
- 'InputAxis', # TODO: drop when x-input-send-event is fixed
- 'InputButton', # TODO: drop when x-input-send-event is fixed
- 'QapiErrorClass', # all members, visible through errors
- 'UuidInfo', # UUID, visible through query-uuid
- 'X86CPURegister32', # all members, visible indirectly through qom-get
-]
-
-enum_types = []
-struct_types = []
-union_types = []
-events = []
+name_case_whitelist = []
+
+enum_types = {}
+struct_types = {}
+union_types = {}
all_names = {}
#
def error_path(parent):
- res = ""
+ res = ''
while parent:
- res = ("In file included from %s:%d:\n" % (parent['file'],
+ res = ('In file included from %s:%d:\n' % (parent['file'],
parent['line'])) + res
parent = parent['parent']
return res
-class QAPISchemaError(Exception):
- def __init__(self, schema, msg):
+class QAPIError(Exception):
+ def __init__(self, fname, line, col, incl_info, msg):
Exception.__init__(self)
- self.fname = schema.fname
+ self.fname = fname
+ self.line = line
+ self.col = col
+ self.info = incl_info
self.msg = msg
- self.col = 1
- self.line = schema.line
- for ch in schema.src[schema.line_pos:schema.pos]:
+
+ def __str__(self):
+ loc = '%s:%d' % (self.fname, self.line)
+ if self.col is not None:
+ loc += ':%s' % self.col
+ return error_path(self.info) + '%s: %s' % (loc, self.msg)
+
+
+class QAPIParseError(QAPIError):
+ def __init__(self, parser, msg):
+ col = 1
+ for ch in parser.src[parser.line_pos:parser.pos]:
if ch == '\t':
- self.col = (self.col + 7) % 8 + 1
+ col = (col + 7) % 8 + 1
else:
- self.col += 1
- self.info = schema.incl_info
+ col += 1
+ QAPIError.__init__(self, parser.fname, parser.line, col,
+ parser.incl_info, msg)
- def __str__(self):
- return error_path(self.info) + \
- "%s:%d:%d: %s" % (self.fname, self.line, self.col, self.msg)
+class QAPISemError(QAPIError):
+ def __init__(self, info, msg):
+ QAPIError.__init__(self, info['file'], info['line'], None,
+ info['parent'], msg)
-class QAPIExprError(Exception):
- def __init__(self, expr_info, msg):
- Exception.__init__(self)
- assert expr_info
- self.info = expr_info
- self.msg = msg
- def __str__(self):
- return error_path(self.info['parent']) + \
- "%s:%d: %s" % (self.info['file'], self.info['line'], self.msg)
+class QAPIDoc(object):
+ class Section(object):
+ def __init__(self, name=None):
+ # optional section name (argument/member or section name)
+ self.name = name
+ # the list of lines for this section
+ self.content = []
+
+ def append(self, line):
+ self.content.append(line)
+
+ def __repr__(self):
+ return '\n'.join(self.content).strip()
+
+ class ArgSection(Section):
+ def __init__(self, name):
+ QAPIDoc.Section.__init__(self, name)
+ self.member = None
+
+ def connect(self, member):
+ self.member = member
+
+ def __init__(self, parser, info):
+ # self.parser is used to report errors with QAPIParseError. The
+ # resulting error position depends on the state of the parser.
+ # It happens to be the beginning of the comment. More or less
+ # servicable, but action at a distance.
+ self.parser = parser
+ self.info = info
+ self.symbol = None
+ self.body = QAPIDoc.Section()
+ # dict mapping parameter name to ArgSection
+ self.args = OrderedDict()
+ # a list of Section
+ self.sections = []
+ # the current section
+ self.section = self.body
+
+ def has_section(self, name):
+ """Return True if we have a section with this name."""
+ for i in self.sections:
+ if i.name == name:
+ return True
+ return False
+
+ def append(self, line):
+ """Parse a comment line and add it to the documentation."""
+ line = line[1:]
+ if not line:
+ self._append_freeform(line)
+ return
+
+ if line[0] != ' ':
+ raise QAPIParseError(self.parser, "Missing space after #")
+ line = line[1:]
+
+ # FIXME not nice: things like '# @foo:' and '# @foo: ' aren't
+ # recognized, and get silently treated as ordinary text
+ if self.symbol:
+ self._append_symbol_line(line)
+ elif not self.body.content and line.startswith('@'):
+ if not line.endswith(':'):
+ raise QAPIParseError(self.parser, "Line should end with :")
+ self.symbol = line[1:-1]
+ # FIXME invalid names other than the empty string aren't flagged
+ if not self.symbol:
+ raise QAPIParseError(self.parser, "Invalid name")
+ else:
+ self._append_freeform(line)
+
+ def end_comment(self):
+ self._end_section()
+
+ def _append_symbol_line(self, line):
+ name = line.split(' ', 1)[0]
+
+ if name.startswith('@') and name.endswith(':'):
+ line = line[len(name)+1:]
+ self._start_args_section(name[1:-1])
+ elif name in ('Returns:', 'Since:',
+ # those are often singular or plural
+ 'Note:', 'Notes:',
+ 'Example:', 'Examples:',
+ 'TODO:'):
+ line = line[len(name)+1:]
+ self._start_section(name[:-1])
+
+ self._append_freeform(line)
+
+ def _start_args_section(self, name):
+ # FIXME invalid names other than the empty string aren't flagged
+ if not name:
+ raise QAPIParseError(self.parser, "Invalid parameter name")
+ if name in self.args:
+ raise QAPIParseError(self.parser,
+ "'%s' parameter name duplicated" % name)
+ if self.sections:
+ raise QAPIParseError(self.parser,
+ "'@%s:' can't follow '%s' section"
+ % (name, self.sections[0].name))
+ self._end_section()
+ self.section = QAPIDoc.ArgSection(name)
+ self.args[name] = self.section
+
+ def _start_section(self, name=''):
+ if name in ('Returns', 'Since') and self.has_section(name):
+ raise QAPIParseError(self.parser,
+ "Duplicated '%s' section" % name)
+ self._end_section()
+ self.section = QAPIDoc.Section(name)
+ self.sections.append(self.section)
+
+ def _end_section(self):
+ if self.section:
+ contents = str(self.section)
+ if self.section.name and (not contents or contents.isspace()):
+ raise QAPIParseError(self.parser, "Empty doc section '%s'"
+ % self.section.name)
+ self.section = None
+
+ def _append_freeform(self, line):
+ in_arg = isinstance(self.section, QAPIDoc.ArgSection)
+ if (in_arg and self.section.content
+ and not self.section.content[-1]
+ and line and not line[0].isspace()):
+ self._start_section()
+ if (in_arg or not self.section.name
+ or not self.section.name.startswith('Example')):
+ line = line.strip()
+ match = re.match(r'(@\S+:)', line)
+ if match:
+ raise QAPIParseError(self.parser,
+ "'%s' not allowed in free-form documentation"
+ % match.group(1))
+ # TODO Drop this once the dust has settled
+ if (isinstance(self.section, QAPIDoc.ArgSection)
+ and '#optional' in line):
+ raise QAPISemError(self.info, "Please drop the #optional tag")
+ self.section.append(line)
+
+ def connect_member(self, member):
+ if member.name not in self.args:
+ # Undocumented TODO outlaw
+ self.args[member.name] = QAPIDoc.ArgSection(member.name)
+ self.args[member.name].connect(member)
+
+ def check_expr(self, expr):
+ if self.has_section('Returns') and 'command' not in expr:
+ raise QAPISemError(self.info,
+ "'Returns:' is only valid for commands")
+
+ def check(self):
+ bogus = [name for name, section in self.args.iteritems()
+ if not section.member]
+ if bogus:
+ raise QAPISemError(
+ self.info,
+ "The following documented members are not in "
+ "the declaration: %s" % ", ".join(bogus))
class QAPISchemaParser(object):
self.line = 1
self.line_pos = 0
self.exprs = []
+ self.docs = []
+ self.cur_doc = None
self.accept()
while self.tok is not None:
- expr_info = {'file': fname, 'line': self.line,
- 'parent': self.incl_info}
+ info = {'file': fname, 'line': self.line,
+ 'parent': self.incl_info}
+ if self.tok == '#':
+ self.reject_expr_doc()
+ self.cur_doc = self.get_doc(info)
+ self.docs.append(self.cur_doc)
+ continue
+
expr = self.get_expr(False)
- if isinstance(expr, dict) and "include" in expr:
+ if 'include' in expr:
+ self.reject_expr_doc()
if len(expr) != 1:
- raise QAPIExprError(expr_info,
- "Invalid 'include' directive")
- include = expr["include"]
+ raise QAPISemError(info, "Invalid 'include' directive")
+ include = expr['include']
if not isinstance(include, str):
- raise QAPIExprError(expr_info,
- "Value of 'include' must be a string")
- incl_abs_fname = os.path.join(os.path.dirname(abs_fname),
- include)
- # catch inclusion cycle
- inf = expr_info
- while inf:
- if incl_abs_fname == os.path.abspath(inf['file']):
- raise QAPIExprError(expr_info, "Inclusion loop for %s"
- % include)
- inf = inf['parent']
- # skip multiple include of the same file
- if incl_abs_fname in previously_included:
- continue
- try:
- fobj = open(incl_abs_fname, 'r')
- except IOError as e:
- raise QAPIExprError(expr_info,
- '%s: %s' % (e.strerror, include))
- exprs_include = QAPISchemaParser(fobj, previously_included,
- expr_info)
- self.exprs.extend(exprs_include.exprs)
+ raise QAPISemError(info,
+ "Value of 'include' must be a string")
+ self._include(include, info, os.path.dirname(abs_fname),
+ previously_included)
+ elif "pragma" in expr:
+ self.reject_expr_doc()
+ if len(expr) != 1:
+ raise QAPISemError(info, "Invalid 'pragma' directive")
+ pragma = expr['pragma']
+ if not isinstance(pragma, dict):
+ raise QAPISemError(
+ info, "Value of 'pragma' must be a dictionary")
+ for name, value in pragma.iteritems():
+ self._pragma(name, value, info)
else:
expr_elem = {'expr': expr,
- 'info': expr_info}
+ 'info': info}
+ if self.cur_doc:
+ if not self.cur_doc.symbol:
+ raise QAPISemError(
+ self.cur_doc.info,
+ "Expression documentation required")
+ expr_elem['doc'] = self.cur_doc
self.exprs.append(expr_elem)
+ self.cur_doc = None
+ self.reject_expr_doc()
+
+ def reject_expr_doc(self):
+ if self.cur_doc and self.cur_doc.symbol:
+ raise QAPISemError(
+ self.cur_doc.info,
+ "Documentation for '%s' is not followed by the definition"
+ % self.cur_doc.symbol)
+
+ def _include(self, include, info, base_dir, previously_included):
+ incl_abs_fname = os.path.join(base_dir, include)
+ # catch inclusion cycle
+ inf = info
+ while inf:
+ if incl_abs_fname == os.path.abspath(inf['file']):
+ raise QAPISemError(info, "Inclusion loop for %s" % include)
+ inf = inf['parent']
+
+ # skip multiple include of the same file
+ if incl_abs_fname in previously_included:
+ return
+ try:
+ fobj = open(incl_abs_fname, 'r')
+ except IOError as e:
+ raise QAPISemError(info, '%s: %s' % (e.strerror, include))
+ exprs_include = QAPISchemaParser(fobj, previously_included, info)
+ self.exprs.extend(exprs_include.exprs)
+ self.docs.extend(exprs_include.docs)
+
+ def _pragma(self, name, value, info):
+ global doc_required, returns_whitelist, name_case_whitelist
+ if name == 'doc-required':
+ if not isinstance(value, bool):
+ raise QAPISemError(info,
+ "Pragma 'doc-required' must be boolean")
+ doc_required = value
+ elif name == 'returns-whitelist':
+ if (not isinstance(value, list)
+ or any([not isinstance(elt, str) for elt in value])):
+ raise QAPISemError(info,
+ "Pragma returns-whitelist must be"
+ " a list of strings")
+ returns_whitelist = value
+ elif name == 'name-case-whitelist':
+ if (not isinstance(value, list)
+ or any([not isinstance(elt, str) for elt in value])):
+ raise QAPISemError(info,
+ "Pragma name-case-whitelist must be"
+ " a list of strings")
+ name_case_whitelist = value
+ else:
+ raise QAPISemError(info, "Unknown pragma '%s'" % name)
- def accept(self):
+ def accept(self, skip_comment=True):
while True:
self.tok = self.src[self.cursor]
self.pos = self.cursor
self.val = None
if self.tok == '#':
+ if self.src[self.cursor] == '#':
+ # Start of doc comment
+ skip_comment = False
self.cursor = self.src.find('\n', self.cursor)
- elif self.tok in "{}:,[]":
+ if not skip_comment:
+ self.val = self.src[self.pos:self.cursor]
+ return
+ elif self.tok in '{}:,[]':
return
elif self.tok == "'":
string = ''
ch = self.src[self.cursor]
self.cursor += 1
if ch == '\n':
- raise QAPISchemaError(self,
- 'Missing terminating "\'"')
+ raise QAPIParseError(self, 'Missing terminating "\'"')
if esc:
if ch == 'b':
string += '\b'
for _ in range(0, 4):
ch = self.src[self.cursor]
self.cursor += 1
- if ch not in "0123456789abcdefABCDEF":
- raise QAPISchemaError(self,
- '\\u escape needs 4 '
- 'hex digits')
+ if ch not in '0123456789abcdefABCDEF':
+ raise QAPIParseError(self,
+ '\\u escape needs 4 '
+ 'hex digits')
value = (value << 4) + int(ch, 16)
# If Python 2 and 3 didn't disagree so much on
# how to handle Unicode, then we could allow
# Unicode string defaults. But most of QAPI is
# ASCII-only, so we aren't losing much for now.
if not value or value > 0x7f:
- raise QAPISchemaError(self,
- 'For now, \\u escape '
- 'only supports non-zero '
- 'values up to \\u007f')
+ raise QAPIParseError(self,
+ 'For now, \\u escape '
+ 'only supports non-zero '
+ 'values up to \\u007f')
string += chr(value)
- elif ch in "\\/'\"":
+ elif ch in '\\/\'"':
string += ch
else:
- raise QAPISchemaError(self,
- "Unknown escape \\%s" % ch)
+ raise QAPIParseError(self,
+ "Unknown escape \\%s" % ch)
esc = False
- elif ch == "\\":
+ elif ch == '\\':
esc = True
elif ch == "'":
self.val = string
return
else:
string += ch
- elif self.src.startswith("true", self.pos):
+ elif self.src.startswith('true', self.pos):
self.val = True
self.cursor += 3
return
- elif self.src.startswith("false", self.pos):
+ elif self.src.startswith('false', self.pos):
self.val = False
self.cursor += 4
return
- elif self.src.startswith("null", self.pos):
+ elif self.src.startswith('null', self.pos):
self.val = None
self.cursor += 3
return
self.line += 1
self.line_pos = self.cursor
elif not self.tok.isspace():
- raise QAPISchemaError(self, 'Stray "%s"' % self.tok)
+ raise QAPIParseError(self, 'Stray "%s"' % self.tok)
def get_members(self):
expr = OrderedDict()
self.accept()
return expr
if self.tok != "'":
- raise QAPISchemaError(self, 'Expected string or "}"')
+ raise QAPIParseError(self, 'Expected string or "}"')
while True:
key = self.val
self.accept()
if self.tok != ':':
- raise QAPISchemaError(self, 'Expected ":"')
+ raise QAPIParseError(self, 'Expected ":"')
self.accept()
if key in expr:
- raise QAPISchemaError(self, 'Duplicate key "%s"' % key)
+ raise QAPIParseError(self, 'Duplicate key "%s"' % key)
expr[key] = self.get_expr(True)
if self.tok == '}':
self.accept()
return expr
if self.tok != ',':
- raise QAPISchemaError(self, 'Expected "," or "}"')
+ raise QAPIParseError(self, 'Expected "," or "}"')
self.accept()
if self.tok != "'":
- raise QAPISchemaError(self, 'Expected string')
+ raise QAPIParseError(self, 'Expected string')
def get_values(self):
expr = []
self.accept()
return expr
if self.tok not in "{['tfn":
- raise QAPISchemaError(self, 'Expected "{", "[", "]", string, '
- 'boolean or "null"')
+ raise QAPIParseError(self, 'Expected "{", "[", "]", string, '
+ 'boolean or "null"')
while True:
expr.append(self.get_expr(True))
if self.tok == ']':
self.accept()
return expr
if self.tok != ',':
- raise QAPISchemaError(self, 'Expected "," or "]"')
+ raise QAPIParseError(self, 'Expected "," or "]"')
self.accept()
def get_expr(self, nested):
if self.tok != '{' and not nested:
- raise QAPISchemaError(self, 'Expected "{"')
+ raise QAPIParseError(self, 'Expected "{"')
if self.tok == '{':
self.accept()
expr = self.get_members()
expr = self.val
self.accept()
else:
- raise QAPISchemaError(self, 'Expected "{", "[" or string')
+ raise QAPIParseError(self, 'Expected "{", "[", string, '
+ 'boolean or "null"')
return expr
+ def get_doc(self, info):
+ if self.val != '##':
+ raise QAPIParseError(self, "Junk after '##' at start of "
+ "documentation comment")
+
+ doc = QAPIDoc(self, info)
+ self.accept(False)
+ while self.tok == '#':
+ if self.val.startswith('##'):
+ # End of doc comment
+ if self.val != '##':
+ raise QAPIParseError(self, "Junk after '##' at end of "
+ "documentation comment")
+ doc.end_comment()
+ self.accept()
+ return doc
+ else:
+ doc.append(self.val)
+ self.accept(False)
+
+ raise QAPIParseError(self, "Documentation comment must end with '##'")
+
+
#
# Semantic analysis of schema expressions
# TODO fold into QAPISchema
#
-def find_base_fields(base):
- base_struct_define = find_struct(base)
+def find_base_members(base):
+ if isinstance(base, dict):
+ return base
+ base_struct_define = struct_types.get(base)
if not base_struct_define:
return None
return base_struct_define['data']
def find_alternate_member_qtype(qapi_type):
if qapi_type in builtin_types:
return builtin_types[qapi_type]
- elif find_struct(qapi_type):
- return "QTYPE_QDICT"
- elif find_enum(qapi_type):
- return "QTYPE_QSTRING"
- elif find_union(qapi_type):
- return "QTYPE_QDICT"
+ elif qapi_type in struct_types:
+ return 'QTYPE_QDICT'
+ elif qapi_type in enum_types:
+ return 'QTYPE_QSTRING'
+ elif qapi_type in union_types:
+ return 'QTYPE_QDICT'
return None
if not (discriminator and base):
return None
- base_fields = find_base_fields(base)
- if not base_fields:
+ base_members = find_base_members(base)
+ if not base_members:
return None
- discriminator_type = base_fields.get(discriminator)
+ discriminator_type = base_members.get(discriminator)
if not discriminator_type:
return None
- return find_enum(discriminator_type)
+ return enum_types.get(discriminator_type)
# Names must be letters, numbers, -, and _. They must start with letter,
# except for downstream extensions which must start with __RFQDN_.
# Dots are only valid in the downstream extension prefix.
-valid_name = re.compile('^(__[a-zA-Z0-9.-]+_)?'
+valid_name = re.compile(r'^(__[a-zA-Z0-9.-]+_)?'
'[a-zA-Z][a-zA-Z0-9_-]*$')
-def check_name(expr_info, source, name, allow_optional=False,
+def check_name(info, source, name, allow_optional=False,
enum_member=False):
global valid_name
membername = name
if not isinstance(name, str):
- raise QAPIExprError(expr_info,
- "%s requires a string name" % source)
+ raise QAPISemError(info, "%s requires a string name" % source)
if name.startswith('*'):
membername = name[1:]
if not allow_optional:
- raise QAPIExprError(expr_info,
- "%s does not allow optional name '%s'"
- % (source, name))
+ raise QAPISemError(info, "%s does not allow optional name '%s'"
+ % (source, name))
# Enum members can start with a digit, because the generated C
# code always prefixes it with the enum name
if enum_member and membername[0].isdigit():
membername = 'D' + membername
- # Reserve the entire 'q_' namespace for c_name()
+ # Reserve the entire 'q_' namespace for c_name(), and for 'q_empty'
+ # and 'q_obj_*' implicit type names.
if not valid_name.match(membername) or \
c_name(membername, False).startswith('q_'):
- raise QAPIExprError(expr_info,
- "%s uses invalid name '%s'" % (source, name))
+ raise QAPISemError(info, "%s uses invalid name '%s'" % (source, name))
def add_name(name, info, meta, implicit=False):
# FIXME should reject names that differ only in '_' vs. '.'
# vs. '-', because they're liable to clash in generated C.
if name in all_names:
- raise QAPIExprError(info,
- "%s '%s' is already defined"
- % (all_names[name], name))
+ raise QAPISemError(info, "%s '%s' is already defined"
+ % (all_names[name], name))
if not implicit and (name.endswith('Kind') or name.endswith('List')):
- raise QAPIExprError(info,
- "%s '%s' should not end in '%s'"
- % (meta, name, name[-4:]))
+ raise QAPISemError(info, "%s '%s' should not end in '%s'"
+ % (meta, name, name[-4:]))
all_names[name] = meta
-def add_struct(definition, info):
- global struct_types
- name = definition['struct']
- add_name(name, info, 'struct')
- struct_types.append(definition)
-
-
-def find_struct(name):
- global struct_types
- for struct in struct_types:
- if struct['struct'] == name:
- return struct
- return None
-
-
-def add_union(definition, info):
- global union_types
- name = definition['union']
- add_name(name, info, 'union')
- union_types.append(definition)
-
-
-def find_union(name):
- global union_types
- for union in union_types:
- if union['union'] == name:
- return union
- return None
-
-
-def add_enum(name, info, enum_values=None, implicit=False):
- global enum_types
- add_name(name, info, 'enum', implicit)
- enum_types.append({"enum_name": name, "enum_values": enum_values})
-
-
-def find_enum(name):
- global enum_types
- for enum in enum_types:
- if enum['enum_name'] == name:
- return enum
- return None
-
-
-def is_enum(name):
- return find_enum(name) is not None
-
-
-def check_type(expr_info, source, value, allow_array=False,
+def check_type(info, source, value, allow_array=False,
allow_dict=False, allow_optional=False,
allow_metas=[]):
global all_names
# Check if array type for value is okay
if isinstance(value, list):
if not allow_array:
- raise QAPIExprError(expr_info,
- "%s cannot be an array" % source)
+ raise QAPISemError(info, "%s cannot be an array" % source)
if len(value) != 1 or not isinstance(value[0], str):
- raise QAPIExprError(expr_info,
- "%s: array type must contain single type name"
- % source)
+ raise QAPISemError(info,
+ "%s: array type must contain single type name" %
+ source)
value = value[0]
# Check if type name for value is okay
if isinstance(value, str):
if value not in all_names:
- raise QAPIExprError(expr_info,
- "%s uses unknown type '%s'"
- % (source, value))
+ raise QAPISemError(info, "%s uses unknown type '%s'"
+ % (source, value))
if not all_names[value] in allow_metas:
- raise QAPIExprError(expr_info,
- "%s cannot use %s type '%s'"
- % (source, all_names[value], value))
+ raise QAPISemError(info, "%s cannot use %s type '%s'" %
+ (source, all_names[value], value))
return
if not allow_dict:
- raise QAPIExprError(expr_info,
- "%s should be a type name" % source)
+ raise QAPISemError(info, "%s should be a type name" % source)
if not isinstance(value, OrderedDict):
- raise QAPIExprError(expr_info,
- "%s should be a dictionary or type name" % source)
+ raise QAPISemError(info,
+ "%s should be a dictionary or type name" % source)
# value is a dictionary, check that each member is okay
for (key, arg) in value.items():
- check_name(expr_info, "Member of %s" % source, key,
+ check_name(info, "Member of %s" % source, key,
allow_optional=allow_optional)
if c_name(key, False) == 'u' or c_name(key, False).startswith('has_'):
- raise QAPIExprError(expr_info,
- "Member of %s uses reserved name '%s'"
- % (source, key))
+ raise QAPISemError(info, "Member of %s uses reserved name '%s'"
+ % (source, key))
# Todo: allow dictionaries to represent default values of
# an optional argument.
- check_type(expr_info, "Member '%s' of %s" % (key, source), arg,
+ check_type(info, "Member '%s' of %s" % (key, source), arg,
allow_array=True,
allow_metas=['built-in', 'union', 'alternate', 'struct',
'enum'])
-def check_command(expr, expr_info):
+def check_command(expr, info):
name = expr['command']
-
- check_type(expr_info, "'data' for command '%s'" % name,
- expr.get('data'), allow_dict=True, allow_optional=True,
- allow_metas=['struct'])
+ boxed = expr.get('boxed', False)
+
+ args_meta = ['struct']
+ if boxed:
+ args_meta += ['union', 'alternate']
+ check_type(info, "'data' for command '%s'" % name,
+ expr.get('data'), allow_dict=not boxed, allow_optional=True,
+ allow_metas=args_meta)
returns_meta = ['union', 'struct']
if name in returns_whitelist:
returns_meta += ['built-in', 'alternate', 'enum']
- check_type(expr_info, "'returns' for command '%s'" % name,
+ check_type(info, "'returns' for command '%s'" % name,
expr.get('returns'), allow_array=True,
allow_optional=True, allow_metas=returns_meta)
-def check_event(expr, expr_info):
- global events
+def check_event(expr, info):
name = expr['event']
+ boxed = expr.get('boxed', False)
- events.append(name)
- check_type(expr_info, "'data' for event '%s'" % name,
- expr.get('data'), allow_dict=True, allow_optional=True,
- allow_metas=['struct'])
+ meta = ['struct']
+ if boxed:
+ meta += ['union', 'alternate']
+ check_type(info, "'data' for event '%s'" % name,
+ expr.get('data'), allow_dict=not boxed, allow_optional=True,
+ allow_metas=meta)
-def check_union(expr, expr_info):
+def check_union(expr, info):
name = expr['union']
base = expr.get('base')
discriminator = expr.get('discriminator')
enum_define = None
allow_metas = ['built-in', 'union', 'alternate', 'struct', 'enum']
if base is not None:
- raise QAPIExprError(expr_info,
- "Simple union '%s' must not have a base"
- % name)
+ raise QAPISemError(info, "Simple union '%s' must not have a base" %
+ name)
# Else, it's a flat union.
else:
- # The object must have a string member 'base'.
- check_type(expr_info, "'base' for union '%s'" % name,
- base, allow_metas=['struct'])
+ # The object must have a string or dictionary 'base'.
+ check_type(info, "'base' for union '%s'" % name,
+ base, allow_dict=True, allow_optional=True,
+ allow_metas=['struct'])
if not base:
- raise QAPIExprError(expr_info,
- "Flat union '%s' must have a base"
- % name)
- base_fields = find_base_fields(base)
- assert base_fields
+ raise QAPISemError(info, "Flat union '%s' must have a base"
+ % name)
+ base_members = find_base_members(base)
+ assert base_members is not None
# The value of member 'discriminator' must name a non-optional
# member of the base struct.
- check_name(expr_info, "Discriminator of flat union '%s'" % name,
+ check_name(info, "Discriminator of flat union '%s'" % name,
discriminator)
- discriminator_type = base_fields.get(discriminator)
+ discriminator_type = base_members.get(discriminator)
if not discriminator_type:
- raise QAPIExprError(expr_info,
- "Discriminator '%s' is not a member of base "
- "struct '%s'"
- % (discriminator, base))
- enum_define = find_enum(discriminator_type)
+ raise QAPISemError(info,
+ "Discriminator '%s' is not a member of base "
+ "struct '%s'"
+ % (discriminator, base))
+ enum_define = enum_types.get(discriminator_type)
allow_metas = ['struct']
# Do not allow string discriminator
if not enum_define:
- raise QAPIExprError(expr_info,
- "Discriminator '%s' must be of enumeration "
- "type" % discriminator)
+ raise QAPISemError(info,
+ "Discriminator '%s' must be of enumeration "
+ "type" % discriminator)
# Check every branch; don't allow an empty union
if len(members) == 0:
- raise QAPIExprError(expr_info,
- "Union '%s' cannot have empty 'data'" % name)
+ raise QAPISemError(info, "Union '%s' cannot have empty 'data'" % name)
for (key, value) in members.items():
- check_name(expr_info, "Member of union '%s'" % name, key)
+ check_name(info, "Member of union '%s'" % name, key)
# Each value must name a known type
- check_type(expr_info, "Member '%s' of union '%s'" % (key, name),
+ check_type(info, "Member '%s' of union '%s'" % (key, name),
value, allow_array=not base, allow_metas=allow_metas)
# If the discriminator names an enum type, then all members
# of 'data' must also be members of the enum type.
if enum_define:
- if key not in enum_define['enum_values']:
- raise QAPIExprError(expr_info,
- "Discriminator value '%s' is not found in "
- "enum '%s'" %
- (key, enum_define["enum_name"]))
+ if key not in enum_define['data']:
+ raise QAPISemError(info,
+ "Discriminator value '%s' is not found in "
+ "enum '%s'"
+ % (key, enum_define['enum']))
+ # If discriminator is user-defined, ensure all values are covered
+ if enum_define:
+ for value in enum_define['data']:
+ if value not in members.keys():
+ raise QAPISemError(info, "Union '%s' data missing '%s' branch"
+ % (name, value))
-def check_alternate(expr, expr_info):
+
+def check_alternate(expr, info):
name = expr['alternate']
members = expr['data']
types_seen = {}
# Check every branch; require at least two branches
if len(members) < 2:
- raise QAPIExprError(expr_info,
- "Alternate '%s' should have at least two branches "
- "in 'data'" % name)
+ raise QAPISemError(info,
+ "Alternate '%s' should have at least two branches "
+ "in 'data'" % name)
for (key, value) in members.items():
- check_name(expr_info, "Member of alternate '%s'" % name, key)
+ check_name(info, "Member of alternate '%s'" % name, key)
# Ensure alternates have no type conflicts.
- check_type(expr_info, "Member '%s' of alternate '%s'" % (key, name),
+ check_type(info, "Member '%s' of alternate '%s'" % (key, name),
value,
allow_metas=['built-in', 'union', 'struct', 'enum'])
qtype = find_alternate_member_qtype(value)
if not qtype:
- raise QAPIExprError(expr_info,
- "Alternate '%s' member '%s' cannot use "
- "type '%s'" % (name, key, value))
+ raise QAPISemError(info, "Alternate '%s' member '%s' cannot use "
+ "type '%s'" % (name, key, value))
if qtype in types_seen:
- raise QAPIExprError(expr_info,
- "Alternate '%s' member '%s' can't "
- "be distinguished from member '%s'"
- % (name, key, types_seen[qtype]))
+ raise QAPISemError(info, "Alternate '%s' member '%s' can't "
+ "be distinguished from member '%s'"
+ % (name, key, types_seen[qtype]))
types_seen[qtype] = key
-def check_enum(expr, expr_info):
+def check_enum(expr, info):
name = expr['enum']
members = expr.get('data')
prefix = expr.get('prefix')
if not isinstance(members, list):
- raise QAPIExprError(expr_info,
- "Enum '%s' requires an array for 'data'" % name)
+ raise QAPISemError(info,
+ "Enum '%s' requires an array for 'data'" % name)
if prefix is not None and not isinstance(prefix, str):
- raise QAPIExprError(expr_info,
- "Enum '%s' requires a string for 'prefix'" % name)
+ raise QAPISemError(info,
+ "Enum '%s' requires a string for 'prefix'" % name)
for member in members:
- check_name(expr_info, "Member of enum '%s'" % name, member,
+ check_name(info, "Member of enum '%s'" % name, member,
enum_member=True)
-def check_struct(expr, expr_info):
+def check_struct(expr, info):
name = expr['struct']
members = expr['data']
- check_type(expr_info, "'data' for struct '%s'" % name, members,
+ check_type(info, "'data' for struct '%s'" % name, members,
allow_dict=True, allow_optional=True)
- check_type(expr_info, "'base' for struct '%s'" % name, expr.get('base'),
+ check_type(info, "'base' for struct '%s'" % name, expr.get('base'),
allow_metas=['struct'])
info = expr_elem['info']
name = expr[meta]
if not isinstance(name, str):
- raise QAPIExprError(info,
- "'%s' key must have a string value" % meta)
+ raise QAPISemError(info, "'%s' key must have a string value" % meta)
required = required + [meta]
for (key, value) in expr.items():
if key not in required and key not in optional:
- raise QAPIExprError(info,
- "Unknown key '%s' in %s '%s'"
- % (key, meta, name))
+ raise QAPISemError(info, "Unknown key '%s' in %s '%s'"
+ % (key, meta, name))
if (key == 'gen' or key == 'success-response') and value is not False:
- raise QAPIExprError(info,
- "'%s' of %s '%s' should only use false value"
- % (key, meta, name))
+ raise QAPISemError(info,
+ "'%s' of %s '%s' should only use false value"
+ % (key, meta, name))
+ if key == 'boxed' and value is not True:
+ raise QAPISemError(info,
+ "'%s' of %s '%s' should only use true value"
+ % (key, meta, name))
for key in required:
if key not in expr:
- raise QAPIExprError(info,
- "Key '%s' is missing from %s '%s'"
- % (key, meta, name))
+ raise QAPISemError(info, "Key '%s' is missing from %s '%s'"
+ % (key, meta, name))
def check_exprs(exprs):
global all_names
- # Learn the types and check for valid expression keys
+ # Populate name table with names of built-in types
for builtin in builtin_types.keys():
all_names[builtin] = 'built-in'
+
+ # Learn the types and check for valid expression keys
for expr_elem in exprs:
expr = expr_elem['expr']
info = expr_elem['info']
+ doc = expr_elem.get('doc')
+
+ if not doc and doc_required:
+ raise QAPISemError(info,
+ "Expression missing documentation comment")
+
if 'enum' in expr:
+ meta = 'enum'
check_keys(expr_elem, 'enum', ['data'], ['prefix'])
- add_enum(expr['enum'], info, expr['data'])
+ enum_types[expr[meta]] = expr
elif 'union' in expr:
+ meta = 'union'
check_keys(expr_elem, 'union', ['data'],
['base', 'discriminator'])
- add_union(expr, info)
+ union_types[expr[meta]] = expr
elif 'alternate' in expr:
+ meta = 'alternate'
check_keys(expr_elem, 'alternate', ['data'])
- add_name(expr['alternate'], info, 'alternate')
elif 'struct' in expr:
+ meta = 'struct'
check_keys(expr_elem, 'struct', ['data'], ['base'])
- add_struct(expr, info)
+ struct_types[expr[meta]] = expr
elif 'command' in expr:
+ meta = 'command'
check_keys(expr_elem, 'command', [],
- ['data', 'returns', 'gen', 'success-response'])
- add_name(expr['command'], info, 'command')
+ ['data', 'returns', 'gen', 'success-response', 'boxed'])
elif 'event' in expr:
- check_keys(expr_elem, 'event', [], ['data'])
- add_name(expr['event'], info, 'event')
+ meta = 'event'
+ check_keys(expr_elem, 'event', [], ['data', 'boxed'])
else:
- raise QAPIExprError(expr_elem['info'],
- "Expression is missing metatype")
+ raise QAPISemError(expr_elem['info'],
+ "Expression is missing metatype")
+ name = expr[meta]
+ add_name(name, info, meta)
+ if doc and doc.symbol != name:
+ raise QAPISemError(info, "Definition of '%s' follows documentation"
+ " for '%s'" % (name, doc.symbol))
# Try again for hidden UnionKind enum
for expr_elem in exprs:
expr = expr_elem['expr']
- if 'union' in expr:
- if not discriminator_find_enum_define(expr):
- add_enum('%sKind' % expr['union'], expr_elem['info'],
- implicit=True)
+ if 'union' in expr and not discriminator_find_enum_define(expr):
+ name = '%sKind' % expr['union']
elif 'alternate' in expr:
- add_enum('%sKind' % expr['alternate'], expr_elem['info'],
- implicit=True)
+ name = '%sKind' % expr['alternate']
+ else:
+ continue
+ enum_types[name] = {'enum': name}
+ add_name(name, info, 'enum', implicit=True)
# Validate that exprs make sense
for expr_elem in exprs:
expr = expr_elem['expr']
info = expr_elem['info']
+ doc = expr_elem.get('doc')
if 'enum' in expr:
check_enum(expr, info)
else:
assert False, 'unexpected meta type'
+ if doc:
+ doc.check_expr(expr)
+
return exprs
#
class QAPISchemaEntity(object):
- def __init__(self, name, info):
+ def __init__(self, name, info, doc):
assert isinstance(name, str)
self.name = name
# For explicitly defined entities, info points to the (explicit)
# triggered the implicit definition (there may be more than one
# such place).
self.info = info
+ self.doc = doc
def c_name(self):
return c_name(self.name)
pass
def visit_command(self, name, info, arg_type, ret_type,
- gen, success_response):
+ gen, success_response, boxed):
pass
- def visit_event(self, name, info, arg_type):
+ def visit_event(self, name, info, arg_type, boxed):
pass
class QAPISchemaType(QAPISchemaEntity):
- def c_type(self, is_param=False, is_unboxed=False):
- return c_name(self.name) + pointer_suffix
+ # Return the C type for common use.
+ # For the types we commonly box, this is a pointer type.
+ def c_type(self):
+ pass
- def c_null(self):
- return 'NULL'
+ # Return the C type to be used in a parameter list.
+ def c_param_type(self):
+ return self.c_type()
+
+ # Return the C type to be used where we suppress boxing.
+ def c_unboxed_type(self):
+ return self.c_type()
def json_type(self):
pass
}
return json2qtype.get(self.json_type())
+ def doc_type(self):
+ if self.is_implicit():
+ return None
+ return self.name
+
class QAPISchemaBuiltinType(QAPISchemaType):
- def __init__(self, name, json_type, c_type, c_null):
- QAPISchemaType.__init__(self, name, None)
+ def __init__(self, name, json_type, c_type):
+ QAPISchemaType.__init__(self, name, None, None)
assert not c_type or isinstance(c_type, str)
assert json_type in ('string', 'number', 'int', 'boolean', 'null',
'value')
self._json_type_name = json_type
self._c_type_name = c_type
- self._c_null_val = c_null
def c_name(self):
return self.name
- def c_type(self, is_param=False, is_unboxed=False):
- if is_param and self.name == 'str':
- return 'const ' + self._c_type_name
+ def c_type(self):
return self._c_type_name
- def c_null(self):
- return self._c_null_val
+ def c_param_type(self):
+ if self.name == 'str':
+ return 'const ' + self._c_type_name
+ return self._c_type_name
def json_type(self):
return self._json_type_name
+ def doc_type(self):
+ return self.json_type()
+
def visit(self, visitor):
visitor.visit_builtin_type(self.name, self.info, self.json_type())
class QAPISchemaEnumType(QAPISchemaType):
- def __init__(self, name, info, values, prefix):
- QAPISchemaType.__init__(self, name, info)
+ def __init__(self, name, info, doc, values, prefix):
+ QAPISchemaType.__init__(self, name, info, doc)
for v in values:
assert isinstance(v, QAPISchemaMember)
v.set_owner(name)
seen = {}
for v in self.values:
v.check_clash(self.info, seen)
+ if self.doc:
+ self.doc.connect_member(v)
def is_implicit(self):
- # See QAPISchema._make_implicit_enum_type()
- return self.name.endswith('Kind')
+ # See QAPISchema._make_implicit_enum_type() and ._def_predefineds()
+ return self.name.endswith('Kind') or self.name == 'QType'
- def c_type(self, is_param=False, is_unboxed=False):
+ def c_type(self):
return c_name(self.name)
def member_names(self):
return [v.name for v in self.values]
- def c_null(self):
- return c_enum_const(self.name, (self.member_names() + ['_MAX'])[0],
- self.prefix)
-
def json_type(self):
return 'string'
class QAPISchemaArrayType(QAPISchemaType):
def __init__(self, name, info, element_type):
- QAPISchemaType.__init__(self, name, info)
+ QAPISchemaType.__init__(self, name, info, None)
assert isinstance(element_type, str)
self._element_type_name = element_type
self.element_type = None
def is_implicit(self):
return True
+ def c_type(self):
+ return c_name(self.name) + pointer_suffix
+
def json_type(self):
return 'array'
+ def doc_type(self):
+ elt_doc_type = self.element_type.doc_type()
+ if not elt_doc_type:
+ return None
+ return 'array of ' + elt_doc_type
+
def visit(self, visitor):
visitor.visit_array_type(self.name, self.info, self.element_type)
class QAPISchemaObjectType(QAPISchemaType):
- def __init__(self, name, info, base, local_members, variants):
+ def __init__(self, name, info, doc, base, local_members, variants):
# struct has local_members, optional base, and no variants
# flat union has base, variants, and no local_members
# simple union has local_members, variants, and no base
- QAPISchemaType.__init__(self, name, info)
+ QAPISchemaType.__init__(self, name, info, doc)
assert base is None or isinstance(base, str)
for m in local_members:
assert isinstance(m, QAPISchemaObjectTypeMember)
def check(self, schema):
if self.members is False: # check for cycles
- raise QAPIExprError(self.info,
- "Object %s contains itself" % self.name)
+ raise QAPISemError(self.info,
+ "Object %s contains itself" % self.name)
if self.members:
return
self.members = False # mark as being checked
self.base = schema.lookup_type(self._base_name)
assert isinstance(self.base, QAPISchemaObjectType)
self.base.check(schema)
- self.base.check_clash(schema, self.info, seen)
+ self.base.check_clash(self.info, seen)
for m in self.local_members:
m.check(schema)
m.check_clash(self.info, seen)
+ if self.doc:
+ self.doc.connect_member(m)
self.members = seen.values()
if self.variants:
self.variants.check(schema, seen)
assert self.variants.tag_member in self.members
- self.variants.check_clash(schema, self.info, seen)
+ self.variants.check_clash(self.info, seen)
+ if self.doc:
+ self.doc.check()
- # Check that the members of this type do not cause duplicate JSON fields,
+ # Check that the members of this type do not cause duplicate JSON members,
# and update seen to track the members seen so far. Report any errors
# on behalf of info, which is not necessarily self.info
- def check_clash(self, schema, info, seen):
+ def check_clash(self, info, seen):
assert not self.variants # not implemented
for m in self.members:
m.check_clash(info, seen)
def is_implicit(self):
- # See QAPISchema._make_implicit_object_type()
- return self.name[0] == ':'
+ # See QAPISchema._make_implicit_object_type(), as well as
+ # _def_predefineds()
+ return self.name.startswith('q_')
+
+ def is_empty(self):
+ assert self.members is not None
+ return not self.members and not self.variants
def c_name(self):
- assert not self.is_implicit()
+ assert self.name != 'q_empty'
return QAPISchemaType.c_name(self)
- def c_type(self, is_param=False, is_unboxed=False):
+ def c_type(self):
assert not self.is_implicit()
- if is_unboxed:
- return c_name(self.name)
return c_name(self.name) + pointer_suffix
+ def c_unboxed_type(self):
+ return c_name(self.name)
+
def json_type(self):
return 'object'
def check_clash(self, info, seen):
cname = c_name(self.name)
- if cname.lower() != cname and self.owner not in case_whitelist:
- raise QAPIExprError(info,
- "%s should not use uppercase" % self.describe())
+ if cname.lower() != cname and self.owner not in name_case_whitelist:
+ raise QAPISemError(info,
+ "%s should not use uppercase" % self.describe())
if cname in seen:
- raise QAPIExprError(info,
- "%s collides with %s"
- % (self.describe(), seen[cname].describe()))
+ raise QAPISemError(info, "%s collides with %s" %
+ (self.describe(), seen[cname].describe()))
seen[cname] = self
def _pretty_owner(self):
owner = self.owner
- if owner.startswith(':obj-'):
+ if owner.startswith('q_obj_'):
# See QAPISchema._make_implicit_object_type() - reverse the
# mapping there to create a nice human-readable description
- owner = owner[5:]
+ owner = owner[6:]
if owner.endswith('-arg'):
return '(parameter of %s)' % owner[:-4]
+ elif owner.endswith('-base'):
+ return '(base of %s)' % owner[:-5]
else:
assert owner.endswith('-wrapper')
# Unreachable and not implemented
assert len(variants) > 0
for v in variants:
assert isinstance(v, QAPISchemaObjectTypeVariant)
- self.tag_name = tag_name
+ self._tag_name = tag_name
self.tag_member = tag_member
self.variants = variants
def check(self, schema, seen):
if not self.tag_member: # flat union
- self.tag_member = seen[c_name(self.tag_name)]
- assert self.tag_name == self.tag_member.name
+ self.tag_member = seen[c_name(self._tag_name)]
+ assert self._tag_name == self.tag_member.name
assert isinstance(self.tag_member.type, QAPISchemaEnumType)
for v in self.variants:
v.check(schema)
assert isinstance(v.type, QAPISchemaObjectType)
v.type.check(schema)
- def check_clash(self, schema, info, seen):
+ def check_clash(self, info, seen):
for v in self.variants:
# Reset seen map for each variant, since qapi names from one
# branch do not affect another branch
assert isinstance(v.type, QAPISchemaObjectType)
- v.type.check_clash(schema, info, dict(seen))
+ v.type.check_clash(info, dict(seen))
class QAPISchemaObjectTypeVariant(QAPISchemaObjectTypeMember):
def __init__(self, name, typ):
QAPISchemaObjectTypeMember.__init__(self, name, typ, False)
- # This function exists to support ugly simple union special cases
- # TODO get rid of them, and drop the function
- def simple_union_type(self):
- if (self.type.is_implicit() and
- isinstance(self.type, QAPISchemaObjectType)):
- assert len(self.type.members) == 1
- assert not self.type.variants
- return self.type.members[0].type
- return None
-
class QAPISchemaAlternateType(QAPISchemaType):
- def __init__(self, name, info, variants):
- QAPISchemaType.__init__(self, name, info)
+ def __init__(self, name, info, doc, variants):
+ QAPISchemaType.__init__(self, name, info, doc)
assert isinstance(variants, QAPISchemaObjectTypeVariants)
- assert not variants.tag_name
+ assert variants.tag_member
variants.set_owner(name)
variants.tag_member.set_owner(self.name)
self.variants = variants
seen = {}
for v in self.variants.variants:
v.check_clash(self.info, seen)
+ if self.doc:
+ self.doc.connect_member(v)
+ if self.doc:
+ self.doc.check()
+
+ def c_type(self):
+ return c_name(self.name) + pointer_suffix
def json_type(self):
return 'value'
def visit(self, visitor):
visitor.visit_alternate_type(self.name, self.info, self.variants)
+ def is_empty(self):
+ return False
+
class QAPISchemaCommand(QAPISchemaEntity):
- def __init__(self, name, info, arg_type, ret_type, gen, success_response):
- QAPISchemaEntity.__init__(self, name, info)
+ def __init__(self, name, info, doc, arg_type, ret_type,
+ gen, success_response, boxed):
+ QAPISchemaEntity.__init__(self, name, info, doc)
assert not arg_type or isinstance(arg_type, str)
assert not ret_type or isinstance(ret_type, str)
self._arg_type_name = arg_type
self.ret_type = None
self.gen = gen
self.success_response = success_response
+ self.boxed = boxed
def check(self, schema):
if self._arg_type_name:
self.arg_type = schema.lookup_type(self._arg_type_name)
- assert isinstance(self.arg_type, QAPISchemaObjectType)
- assert not self.arg_type.variants # not implemented
+ assert (isinstance(self.arg_type, QAPISchemaObjectType) or
+ isinstance(self.arg_type, QAPISchemaAlternateType))
+ self.arg_type.check(schema)
+ if self.boxed:
+ if self.arg_type.is_empty():
+ raise QAPISemError(self.info,
+ "Cannot use 'boxed' with empty type")
+ else:
+ assert not isinstance(self.arg_type, QAPISchemaAlternateType)
+ assert not self.arg_type.variants
+ elif self.boxed:
+ raise QAPISemError(self.info, "Use of 'boxed' requires 'data'")
if self._ret_type_name:
self.ret_type = schema.lookup_type(self._ret_type_name)
assert isinstance(self.ret_type, QAPISchemaType)
def visit(self, visitor):
visitor.visit_command(self.name, self.info,
self.arg_type, self.ret_type,
- self.gen, self.success_response)
+ self.gen, self.success_response, self.boxed)
class QAPISchemaEvent(QAPISchemaEntity):
- def __init__(self, name, info, arg_type):
- QAPISchemaEntity.__init__(self, name, info)
+ def __init__(self, name, info, doc, arg_type, boxed):
+ QAPISchemaEntity.__init__(self, name, info, doc)
assert not arg_type or isinstance(arg_type, str)
self._arg_type_name = arg_type
self.arg_type = None
+ self.boxed = boxed
def check(self, schema):
if self._arg_type_name:
self.arg_type = schema.lookup_type(self._arg_type_name)
- assert isinstance(self.arg_type, QAPISchemaObjectType)
- assert not self.arg_type.variants # not implemented
+ assert (isinstance(self.arg_type, QAPISchemaObjectType) or
+ isinstance(self.arg_type, QAPISchemaAlternateType))
+ self.arg_type.check(schema)
+ if self.boxed:
+ if self.arg_type.is_empty():
+ raise QAPISemError(self.info,
+ "Cannot use 'boxed' with empty type")
+ else:
+ assert not isinstance(self.arg_type, QAPISchemaAlternateType)
+ assert not self.arg_type.variants
+ elif self.boxed:
+ raise QAPISemError(self.info, "Use of 'boxed' requires 'data'")
def visit(self, visitor):
- visitor.visit_event(self.name, self.info, self.arg_type)
+ visitor.visit_event(self.name, self.info, self.arg_type, self.boxed)
class QAPISchema(object):
def __init__(self, fname):
try:
- self.exprs = check_exprs(QAPISchemaParser(open(fname, "r")).exprs)
+ parser = QAPISchemaParser(open(fname, 'r'))
+ self.exprs = check_exprs(parser.exprs)
+ self.docs = parser.docs
self._entity_dict = {}
self._predefining = True
self._def_predefineds()
self._predefining = False
self._def_exprs()
self.check()
- except (QAPISchemaError, QAPIExprError) as err:
+ except QAPIError as err:
print >>sys.stderr, err
exit(1)
def lookup_type(self, name):
return self.lookup_entity(name, QAPISchemaType)
- def _def_builtin_type(self, name, json_type, c_type, c_null):
- self._def_entity(QAPISchemaBuiltinType(name, json_type,
- c_type, c_null))
+ def _def_builtin_type(self, name, json_type, c_type):
+ self._def_entity(QAPISchemaBuiltinType(name, json_type, c_type))
# TODO As long as we have QAPI_TYPES_BUILTIN to share multiple
# qapi-types.h from a single .c, all arrays of builtins must be
# declared in the first file whether or not they are used. Nicer
self._make_array_type(name, None)
def _def_predefineds(self):
- for t in [('str', 'string', 'char' + pointer_suffix, 'NULL'),
- ('number', 'number', 'double', '0'),
- ('int', 'int', 'int64_t', '0'),
- ('int8', 'int', 'int8_t', '0'),
- ('int16', 'int', 'int16_t', '0'),
- ('int32', 'int', 'int32_t', '0'),
- ('int64', 'int', 'int64_t', '0'),
- ('uint8', 'int', 'uint8_t', '0'),
- ('uint16', 'int', 'uint16_t', '0'),
- ('uint32', 'int', 'uint32_t', '0'),
- ('uint64', 'int', 'uint64_t', '0'),
- ('size', 'int', 'uint64_t', '0'),
- ('bool', 'boolean', 'bool', 'false'),
- ('any', 'value', 'QObject' + pointer_suffix, 'NULL')]:
+ for t in [('str', 'string', 'char' + pointer_suffix),
+ ('number', 'number', 'double'),
+ ('int', 'int', 'int64_t'),
+ ('int8', 'int', 'int8_t'),
+ ('int16', 'int', 'int16_t'),
+ ('int32', 'int', 'int32_t'),
+ ('int64', 'int', 'int64_t'),
+ ('uint8', 'int', 'uint8_t'),
+ ('uint16', 'int', 'uint16_t'),
+ ('uint32', 'int', 'uint32_t'),
+ ('uint64', 'int', 'uint64_t'),
+ ('size', 'int', 'uint64_t'),
+ ('bool', 'boolean', 'bool'),
+ ('any', 'value', 'QObject' + pointer_suffix)]:
self._def_builtin_type(*t)
- self.the_empty_object_type = QAPISchemaObjectType(':empty', None, None,
- [], None)
+ self.the_empty_object_type = QAPISchemaObjectType(
+ 'q_empty', None, None, None, [], None)
self._def_entity(self.the_empty_object_type)
qtype_values = self._make_enum_members(['none', 'qnull', 'qint',
'qstring', 'qdict', 'qlist',
'qfloat', 'qbool'])
- self._def_entity(QAPISchemaEnumType('QType', None, qtype_values,
- 'QTYPE'))
+ self._def_entity(QAPISchemaEnumType('QType', None, None,
+ qtype_values, 'QTYPE'))
def _make_enum_members(self, values):
return [QAPISchemaMember(v) for v in values]
# See also QAPISchemaObjectTypeMember._pretty_owner()
name = name + 'Kind' # Use namespace reserved by add_name()
self._def_entity(QAPISchemaEnumType(
- name, info, self._make_enum_members(values), None))
+ name, info, None, self._make_enum_members(values), None))
return name
def _make_array_type(self, element_type, info):
self._def_entity(QAPISchemaArrayType(name, info, element_type))
return name
- def _make_implicit_object_type(self, name, info, role, members):
+ def _make_implicit_object_type(self, name, info, doc, role, members):
if not members:
return None
# See also QAPISchemaObjectTypeMember._pretty_owner()
- name = ':obj-%s-%s' % (name, role)
+ name = 'q_obj_%s-%s' % (name, role)
if not self.lookup_entity(name, QAPISchemaObjectType):
- self._def_entity(QAPISchemaObjectType(name, info, None,
+ self._def_entity(QAPISchemaObjectType(name, info, doc, None,
members, None))
return name
- def _def_enum_type(self, expr, info):
+ def _def_enum_type(self, expr, info, doc):
name = expr['enum']
data = expr['data']
prefix = expr.get('prefix')
self._def_entity(QAPISchemaEnumType(
- name, info, self._make_enum_members(data), prefix))
+ name, info, doc, self._make_enum_members(data), prefix))
def _make_member(self, name, typ, info):
optional = False
return [self._make_member(key, value, info)
for (key, value) in data.iteritems()]
- def _def_struct_type(self, expr, info):
+ def _def_struct_type(self, expr, info, doc):
name = expr['struct']
base = expr.get('base')
data = expr['data']
- self._def_entity(QAPISchemaObjectType(name, info, base,
+ self._def_entity(QAPISchemaObjectType(name, info, doc, base,
self._make_members(data, info),
None))
assert len(typ) == 1
typ = self._make_array_type(typ[0], info)
typ = self._make_implicit_object_type(
- typ, info, 'wrapper', [self._make_member('data', typ, info)])
+ typ, info, None, 'wrapper', [self._make_member('data', typ, info)])
return QAPISchemaObjectTypeVariant(case, typ)
- def _def_union_type(self, expr, info):
+ def _def_union_type(self, expr, info, doc):
name = expr['union']
data = expr['data']
base = expr.get('base')
tag_name = expr.get('discriminator')
tag_member = None
+ if isinstance(base, dict):
+ base = (self._make_implicit_object_type(
+ name, info, doc, 'base', self._make_members(base, info)))
if tag_name:
variants = [self._make_variant(key, value)
for (key, value) in data.iteritems()]
tag_member = QAPISchemaObjectTypeMember('type', typ, False)
members = [tag_member]
self._def_entity(
- QAPISchemaObjectType(name, info, base, members,
+ QAPISchemaObjectType(name, info, doc, base, members,
QAPISchemaObjectTypeVariants(tag_name,
tag_member,
variants)))
- def _def_alternate_type(self, expr, info):
+ def _def_alternate_type(self, expr, info, doc):
name = expr['alternate']
data = expr['data']
variants = [self._make_variant(key, value)
for (key, value) in data.iteritems()]
tag_member = QAPISchemaObjectTypeMember('type', 'QType', False)
self._def_entity(
- QAPISchemaAlternateType(name, info,
+ QAPISchemaAlternateType(name, info, doc,
QAPISchemaObjectTypeVariants(None,
tag_member,
variants)))
- def _def_command(self, expr, info):
+ def _def_command(self, expr, info, doc):
name = expr['command']
data = expr.get('data')
rets = expr.get('returns')
gen = expr.get('gen', True)
success_response = expr.get('success-response', True)
+ boxed = expr.get('boxed', False)
if isinstance(data, OrderedDict):
data = self._make_implicit_object_type(
- name, info, 'arg', self._make_members(data, info))
+ name, info, doc, 'arg', self._make_members(data, info))
if isinstance(rets, list):
assert len(rets) == 1
rets = self._make_array_type(rets[0], info)
- self._def_entity(QAPISchemaCommand(name, info, data, rets, gen,
- success_response))
+ self._def_entity(QAPISchemaCommand(name, info, doc, data, rets,
+ gen, success_response, boxed))
- def _def_event(self, expr, info):
+ def _def_event(self, expr, info, doc):
name = expr['event']
data = expr.get('data')
+ boxed = expr.get('boxed', False)
if isinstance(data, OrderedDict):
data = self._make_implicit_object_type(
- name, info, 'arg', self._make_members(data, info))
- self._def_entity(QAPISchemaEvent(name, info, data))
+ name, info, doc, 'arg', self._make_members(data, info))
+ self._def_entity(QAPISchemaEvent(name, info, doc, data, boxed))
def _def_exprs(self):
for expr_elem in self.exprs:
expr = expr_elem['expr']
info = expr_elem['info']
+ doc = expr_elem.get('doc')
if 'enum' in expr:
- self._def_enum_type(expr, info)
+ self._def_enum_type(expr, info, doc)
elif 'struct' in expr:
- self._def_struct_type(expr, info)
+ self._def_struct_type(expr, info, doc)
elif 'union' in expr:
- self._def_union_type(expr, info)
+ self._def_union_type(expr, info, doc)
elif 'alternate' in expr:
- self._def_alternate_type(expr, info)
+ self._def_alternate_type(expr, info, doc)
elif 'command' in expr:
- self._def_command(expr, info)
+ self._def_command(expr, info, doc)
elif 'event' in expr:
- self._def_event(expr, info)
+ self._def_event(expr, info, doc)
else:
assert False
l = len(c_fun_str)
for i in range(l):
c = c_fun_str[i]
- # When c is upper and no "_" appears before, do more checks
- if c.isupper() and (i > 0) and c_fun_str[i - 1] != "_":
+ # When c is upper and no '_' appears before, do more checks
+ if c.isupper() and (i > 0) and c_fun_str[i - 1] != '_':
if i < l - 1 and c_fun_str[i + 1].islower():
new_name += '_'
elif c_fun_str[i - 1].isdigit():
# Map @name to a valid C identifier.
# If @protect, avoid returning certain ticklish identifiers (like
-# C keywords) by prepending "q_".
+# C keywords) by prepending 'q_'.
#
# Used for converting 'name' from a 'name':'type' qapi definition
# into a generated struct member, as well as converting type names
name = name.translate(c_name_trans)
if protect and (name in c89_words | c99_words | c11_words | gcc_words
| cpp_words | polluted_words):
- return "q_" + name
+ return 'q_' + name
return name
eatspace = '\033EATSPACE.'
def genindent(count):
- ret = ""
+ ret = ''
for _ in range(count):
- ret += " "
+ ret += ' '
return ret
indent_level = 0
if indent_level:
indent = genindent(indent_level)
# re.subn() lacks flags support before Python 2.7, use re.compile()
- raw = re.subn(re.compile("^.", re.MULTILINE),
+ raw = re.subn(re.compile(r'^.', re.MULTILINE),
indent + r'\g<0>', raw)
raw = raw[0]
- return re.sub(re.escape(eatspace) + ' *', '', raw)
+ return re.sub(re.escape(eatspace) + r' *', '', raw)
def mcgen(code, **kwds):
return ret
-def gen_params(arg_type, extra):
+def gen_params(arg_type, boxed, extra):
if not arg_type:
+ assert not boxed
return extra
- assert not arg_type.variants
ret = ''
sep = ''
- for memb in arg_type.members:
- ret += sep
+ if boxed:
+ ret += '%s arg' % arg_type.c_param_type()
sep = ', '
- if memb.optional:
- ret += 'bool has_%s, ' % c_name(memb.name)
- ret += '%s %s' % (memb.type.c_type(is_param=True), c_name(memb.name))
+ else:
+ assert not arg_type.variants
+ for memb in arg_type.members:
+ ret += sep
+ sep = ', '
+ if memb.optional:
+ ret += 'bool has_%s, ' % c_name(memb.name)
+ ret += '%s %s' % (memb.type.c_param_type(),
+ c_name(memb.name))
if extra:
ret += sep + extra
return ret
-def gen_err_check(label='out', skiperr=False):
- if skiperr:
- return ''
- return mcgen('''
- if (err) {
- goto %(label)s;
- }
-''',
- label=label)
-
-
-def gen_visit_fields(members, prefix='', need_cast=False, skiperr=False,
- label='out'):
- ret = ''
- if skiperr:
- errparg = 'NULL'
- else:
- errparg = '&err'
-
- for memb in members:
- if memb.optional:
- ret += mcgen('''
- if (visit_optional(v, "%(name)s", &%(prefix)shas_%(c_name)s)) {
-''',
- prefix=prefix, c_name=c_name(memb.name),
- name=memb.name)
- push_indent()
-
- # Ugly: sometimes we need to cast away const
- if need_cast and memb.type.name == 'str':
- cast = '(char **)'
- else:
- cast = ''
-
- ret += mcgen('''
- visit_type_%(c_type)s(v, "%(name)s", %(cast)s&%(prefix)s%(c_name)s, %(errp)s);
-''',
- c_type=memb.type.c_name(), prefix=prefix, cast=cast,
- c_name=c_name(memb.name), name=memb.name,
- errp=errparg)
- ret += gen_err_check(skiperr=skiperr, label=label)
-
- if memb.optional:
- pop_indent()
- ret += mcgen('''
- }
-''')
- return ret
-
-
#
# Common command line parsing
#
-def parse_command_line(extra_options="", extra_long_options=[]):
+def parse_command_line(extra_options='', extra_long_options=[]):
try:
opts, args = getopt.gnu_getopt(sys.argv[1:],
- "chp:o:" + extra_options,
- ["source", "header", "prefix=",
- "output-dir="] + extra_long_options)
+ 'chp:o:' + extra_options,
+ ['source', 'header', 'prefix=',
+ 'output-dir='] + extra_long_options)
except getopt.GetoptError as err:
print >>sys.stderr, "%s: %s" % (sys.argv[0], str(err))
sys.exit(1)
- output_dir = ""
- prefix = ""
+ output_dir = ''
+ prefix = ''
do_c = False
do_h = False
extra_opts = []
for oa in opts:
o, a = oa
- if o in ("-p", "--prefix"):
- match = re.match('([A-Za-z_.-][A-Za-z0-9_.-]*)?', a)
+ if o in ('-p', '--prefix'):
+ match = re.match(r'([A-Za-z_.-][A-Za-z0-9_.-]*)?', a)
if match.end() != len(a):
print >>sys.stderr, \
"%s: 'funny character '%s' in argument of --prefix" \
% (sys.argv[0], a[match.end()])
sys.exit(1)
prefix = a
- elif o in ("-o", "--output-dir"):
- output_dir = a + "/"
- elif o in ("-c", "--source"):
+ elif o in ('-o', '--output-dir'):
+ output_dir = a + '/'
+ elif o in ('-c', '--source'):
do_c = True
- elif o in ("-h", "--header"):
+ elif o in ('-h', '--header'):
do_h = True
else:
extra_opts.append(oa)
projects / mirror_qemu.git / blobdiff