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# Copyright 2019 The Meson development team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This class contains the basic functionality needed to run any interpreter
# or an interpreter-based tool
from . import AstVisitor
from .. import mparser
import typing as T
class AstIndentationGenerator(AstVisitor):
def __init__(self) -> None:
self.level = 0
def visit_default_func(self, node: mparser.BaseNode) -> None:
# Store the current level in the node
node.level = self.level
def visit_ArrayNode(self, node: mparser.ArrayNode) -> None:
self.visit_default_func(node)
self.level += 1
node.args.accept(self)
self.level -= 1
def visit_DictNode(self, node: mparser.DictNode) -> None:
self.visit_default_func(node)
self.level += 1
node.args.accept(self)
self.level -= 1
def visit_MethodNode(self, node: mparser.MethodNode) -> None:
self.visit_default_func(node)
node.source_object.accept(self)
self.level += 1
node.args.accept(self)
self.level -= 1
def visit_FunctionNode(self, node: mparser.FunctionNode) -> None:
self.visit_default_func(node)
self.level += 1
node.args.accept(self)
self.level -= 1
def visit_ForeachClauseNode(self, node: mparser.ForeachClauseNode) -> None:
self.visit_default_func(node)
self.level += 1
node.items.accept(self)
node.block.accept(self)
self.level -= 1
def visit_IfClauseNode(self, node: mparser.IfClauseNode) -> None:
self.visit_default_func(node)
for i in node.ifs:
i.accept(self)
if node.elseblock:
self.level += 1
node.elseblock.accept(self)
self.level -= 1
def visit_IfNode(self, node: mparser.IfNode) -> None:
self.visit_default_func(node)
self.level += 1
node.condition.accept(self)
node.block.accept(self)
self.level -= 1
class AstIDGenerator(AstVisitor):
def __init__(self) -> None:
self.counter = {} # type: T.Dict[str, int]
def visit_default_func(self, node: mparser.BaseNode) -> None:
name = type(node).__name__
if name not in self.counter:
self.counter[name] = 0
node.ast_id = name + '#' + str(self.counter[name])
self.counter[name] += 1
class AstConditionLevel(AstVisitor):
def __init__(self) -> None:
self.condition_level = 0
def visit_default_func(self, node: mparser.BaseNode) -> None:
node.condition_level = self.condition_level
def visit_ForeachClauseNode(self, node: mparser.ForeachClauseNode) -> None:
self.visit_default_func(node)
self.condition_level += 1
node.items.accept(self)
node.block.accept(self)
self.condition_level -= 1
def visit_IfClauseNode(self, node: mparser.IfClauseNode) -> None:
self.visit_default_func(node)
for i in node.ifs:
i.accept(self)
if node.elseblock:
self.condition_level += 1
node.elseblock.accept(self)
self.condition_level -= 1
def visit_IfNode(self, node: mparser.IfNode) -> None:
self.visit_default_func(node)
self.condition_level += 1
node.condition.accept(self)
node.block.accept(self)
self.condition_level -= 1
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