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# Copyright (c) Pelagicore AB 2016
import logging
from .parser.TListener import TListener
from .parser.TParser import TParser
from .domain import *
from antlr4 import ParserRuleContext
import yaml
import click
try:
from yaml import CSafeLoader as Loader, CDumper as Dumper
except ImportError:
from yaml import SafeLoader as Loader, Dumper
log = logging.getLogger(__name__)
# associates parser context to domain objects
contextMap = {}
class DomainListener(TListener):
"""The domain listener is called by the parser to fill the
domain data struture. As a result a system is passed
back"""
def __init__(self, system):
super(DomainListener, self).__init__()
contextMap.clear()
self.system = system or System() # type:System
self.module = None # type:Module
self.interface = None # type:Interface
self.struct = None # type:Struct
self.enum = None # type:Enum
self.enumCounter = 0 # int
self.operation = None # type:Operation
self.signal = None # type:Signal
self.parameter = None # type:Parameter
self.property = None # type:Property
self.field = None # type:Field
def parse_type(self, ctx: ParserRuleContext, type: TypeSymbol):
assert type
if not ctx.typeSymbol():
type.is_void = True
type.name = 'void'
else:
if ctx.typeSymbol().primitiveTypeSymbol():
# type:TParser.PrimitiveTypeSymbolContext
ctxSymbol = ctx.typeSymbol().primitiveTypeSymbol()
type.is_primitive = True
type.name = ctxSymbol.name.text
elif ctx.typeSymbol().complexTypeSymbol():
# type:TParser.ComplexTypeSymbolContext
ctxSymbol = ctx.typeSymbol().complexTypeSymbol()
type.is_complex = True
type.name = ctxSymbol.name.text
elif ctx.typeSymbol().listTypeSymbol():
# type:TParser.ListTypeSymbolContext
ctxSymbol = ctx.typeSymbol().listTypeSymbol()
type.is_list = True
type.name = 'list'
type.nested = TypeSymbol("", type)
self.parse_type(ctxSymbol, type.nested)
elif ctx.typeSymbol().modelTypeSymbol():
# type:TParser.ModelTypeSymbolContext
ctxSymbol = ctx.typeSymbol().modelTypeSymbol()
type.is_model = True
type.name = 'model'
type.nested = TypeSymbol("", type)
self.parse_type(ctxSymbol, type.nested)
if not type.module.checkType(type):
log.warn('Unknown type: {0}. Missing import?'.format(type.name))
def parse_annotations(self, ctx, symbol):
assert ctx and symbol
if ctx.comment:
comment = ctx.comment.text
symbol.comment = comment
if ctx.tagSymbol():
lines = [tag.line.text[1:] for tag in ctx.tagSymbol()]
try:
data = yaml.load('\n'.join(lines), Loader=Loader)
symbol._tags = data
except yaml.YAMLError as exc:
click.secho(str(exc), fg='red')
def enterEveryRule(self, ctx):
log.debug('enter ' + ctx.__class__.__name__)
def exitEveryRule(self, ctx):
log.debug('exit ' + ctx.__class__.__name__)
def enterModuleSymbol(self, ctx: TParser.ModuleSymbolContext):
assert self.system
name = ctx.name.text
version = ctx.version.text
self.module = Module(name, self.system)
self.module.version = version
contextMap[ctx] = self.module
self.parse_annotations(ctx, self.module)
def exitModuleSymbol(self, ctx: TParser.ModuleSymbolContext):
pass
def enterInterfaceSymbol(self, ctx: TParser.InterfaceSymbolContext):
assert self.module
name = ctx.name.text
self.interface = Interface(name, self.module)
self.parse_annotations(ctx, self.interface)
if ctx.extends:
self.interface._extends = ctx.extends.text
contextMap[ctx] = self.interface
def exitInterfaceSymbol(self, ctx: TParser.InterfaceSymbolContext):
self.interface = None
def enterStructSymbol(self, ctx: TParser.StructSymbolContext):
assert self.module
name = ctx.name.text
self.struct = Struct(name, self.module)
self.parse_annotations(ctx, self.struct)
contextMap[ctx] = self.struct
def exitStructSymbol(self, ctx: TParser.StructSymbolContext):
self.struct = None
def enterEnumSymbol(self, ctx: TParser.EnumSymbolContext):
assert self.module
name = ctx.name.text
self.enum = Enum(name, self.module)
self.parse_annotations(ctx, self.enum)
contextMap[ctx] = self.enum
def exitEnumSymbol(self, ctx: TParser.EnumSymbolContext):
self.enum = None
self.enumCounter = 0
def enterEnumTypeSymbol(self, ctx: TParser.EnumTypeSymbolContext):
assert self.enum
self.enumCounter = 0
if ctx.isFlag:
self.enum.is_enum = False
self.enum.is_flag = True
self.enumCounter = 1
def exitEnumTypeSymbol(self, ctx: TParser.EnumTypeSymbolContext):
pass
def enterOperationSymbol(self, ctx: TParser.OperationSymbolContext):
assert self.interface
name = ctx.name.text
self.operation = Operation(name, self.interface)
modifier = ctx.operationModifierSymbol()
if modifier:
self.operation.is_const = bool(modifier.is_const)
self.parse_annotations(ctx, self.operation)
self.parse_type(ctx, self.operation.type)
contextMap[ctx] = self.operation
def exitOperationSymbol(self, ctx: TParser.OperationSymbolContext):
self.operation = None
def enterSignalSymbol(self, ctx: TParser.SignalSymbolContext):
assert self.interface
name = ctx.name.text
self.signal = Signal(name, self.interface)
self.parse_annotations(ctx, self.signal)
contextMap[ctx] = self.signal
def exitSignalSymbol(self, ctx: TParser.SignalSymbolContext):
self.signal = None
def enterOperationParameterSymbol(self, ctx: TParser.OperationParameterSymbolContext):
name = ctx.name.text
symbol = self.operation if self.operation else self.signal
self.parameter = Parameter(name, symbol)
contextMap[ctx] = self.parameter
def exitOperationParameterSymbol(self, ctx: TParser.OperationParameterSymbolContext):
self.parse_type(ctx, self.parameter.type)
def enterPropertySymbol(self, ctx: TParser.PropertySymbolContext):
assert self.interface
name = ctx.name.text
self.property = Property(name, self.interface)
modifier = ctx.propertyModifierSymbol()
if modifier:
self.property.readonly = bool(modifier.is_readonly)
self.property.const = bool(modifier.is_const)
if ctx.value:
try:
value = yaml.load(ctx.value.text, Loader=Loader)
self.property._value = value
except yaml.YAMLError as exc:
click.secho(exc, fg='red')
self.parse_annotations(ctx, self.property)
self.parse_type(ctx, self.property.type)
contextMap[ctx] = self.property
def exitPropertySymbol(self, ctx: TParser.PropertySymbolContext):
self.property = None
def enterStructFieldSymbol(self, ctx: TParser.StructFieldSymbolContext):
assert self.struct
name = ctx.name.text
self.field = Field(name, self.struct)
self.parse_annotations(ctx, self.field)
contextMap[ctx] = self.field
def exitStructFieldSymbol(self, ctx: TParser.StructFieldSymbolContext):
self.parse_type(ctx, self.field.type)
self.field = None
def enterEnumMemberSymbol(self, ctx: TParser.EnumMemberSymbolContext):
assert self.enum
name = ctx.name.text
self.field = EnumMember(name, self.enum)
value = self.enumCounter
if ctx.intSymbol():
value = int(ctx.intSymbol().value.text, 0)
self.field.value = value
self.parse_annotations(ctx, self.field)
contextMap[ctx] = self.field
if self.enum.is_flag:
self.enumCounter <<= 1
else:
self.enumCounter += 1
def exitEnumMemberSymbol(self, ctx: TParser.EnumMemberSymbolContext):
self.field = None
def enterImportSymbol(self, ctx: TParser.ImportSymbolContext):
assert self.module
name = ctx.name.text
version = ctx.version.text
self.module._importMap[name] = '{0} {1}'.format(name, version)
def exitImportSymbol(self, ctx: TParser.ImportSymbolContext):
pass
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