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polyglot_piranha.pyi
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polyglot_piranha.pyi
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# Copyright (c) 2023 Uber Technologies, Inc.
#
# <p>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
# <p>http://www.apache.org/licenses/LICENSE-2.0
#
# <p>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.
from typing import List, Optional
def execute_piranha(piranha_argument: PiranhaArguments) -> list[PiranhaOutputSummary]:
"""
Executes piranha for the given `piranha_arguments` and returns `PiranhaOutputSummary` for each file analyzed by Piranha
Parameters
------------
piranha_arguments: Piranha Arguments
Configurations for piranha
Returns
------------
List of `PiranhaOutPutSummary`
"""
...
class PiranhaArguments:
"""
A class to capture Piranha's configurations
"""
def __init__(
self,
language: str,
path_to_codebase: Optional[str] = None,
include: Optional[List[str]] = None,
exclude: Optional[List[str]] = None,
substitutions: Optional[dict] = None,
path_to_configurations: Optional[str] = None,
rule_graph: Optional[RuleGraph] = None,
code_snippet: Optional[str] = None,
dry_run: Optional[bool] = None,
cleanup_comments: Optional[bool] = None,
cleanup_comments_buffer: Optional[int] = None,
number_of_ancestors_in_parent_scope: Optional[int] = None,
delete_consecutive_new_lines: Optional[bool] = None,
global_tag_prefix: Optional[str] = "GLOBAL_TAG",
delete_file_if_empty: Optional[bool] = None,
path_to_output: Optional[str] = None,
allow_dirty_ast: Optional[bool] = None,
should_validate: Optional[bool] = None,
):
"""
Constructs `PiranhaArguments`
Parameters
------------
language: str
the target language
path_to_codebase: str
Path to source code folder or file
keyword arguments: _
substitutions (dict): Substitutions to instantiate the initial set of rules
path_to_configurations (str): Directory containing the configuration files - `piranha_arguments.toml`, `rules.toml`, and `edges.toml`
rule_graph (RuleGraph): The rule graph constructed via RuleGraph DSL
code_snippet (str): The input code snippet to transform
dry_run (bool): Disables in-place rewriting of code
cleanup_comments (bool): Enables deletion of associated comments
cleanup_comments_buffer (int): The number of lines to consider for cleaning up the comments
number_of_ancestors_in_parent_scope (int): The number of ancestors considered when PARENT rules
delete_consecutive_new_lines (bool): Replaces consecutive \ns with a \n
global_tag_prefix (str): the prefix for global tags
delete_file_if_empty (bool): User option that determines whether an empty file will be deleted
path_to_output (str): Path to the output json file
allow_dirty_ast (bool): Allows syntax errors in the input source code
"""
...
class PiranhaOutputSummary:
"""
A class to represent Piranha's output
Attributes
----------
path: path to the file
content: content of the file after all the rewrites
matches: All the occurrences of "match-only" rules
rewrites: All the applied edits
"""
path: str
"path to the file"
original_content: str
"Original content of the file before any rewrites"
content: str
"Final content of the file after all the rewrites"
matches: list[tuple[str, Match]]
'All the occurrences of "match-only" rules'
rewrites: list[Edit]
"All the applied edits"
class Edit:
"""
A class to represent an edit performed by Piranha
Attributes
----------
p_match: The match representing the target site of the edit
replacement_string: The string to replace the substring encompassed by the match
matched_rule: The rule used for creating this match-replace
"""
p_match: Match
"The match representing the target site of the edit"
matched_rule: str
"The rule used for creating this match-replace"
replacement_string: str
"The string to replace the substring encompassed by the match"
class Match:
"""
A class to represent a match
Attributes
----------
matched_sting: Code snippet that matched
range: Range of the entire AST node captured by the match
matches: The mapping between tags and string representation of the AST captured
"""
matched_string: str
"Code snippet that matched"
range: Range
"Range of the entire AST node captured by the match"
matches: dict
"The mapping between tags and string representation of the AST captured"
""
class Range:
"""A range of positions in a multi-line text document,
both in terms of bytes and of rows and columns.
"""
start_byte: int
end_byte: int
start_point: Point
end_point: Point
class Point:
row: int
column: int
class Filter:
"""A class to capture filters of a Piranha Rule"""
enclosing_node: TSQuery
"AST patterns that some ancestor node of the primary match should comply"
not_contains: list[TSQuery]
"AST patterns that SHOULD NOT match any subtree of node matching `enclosing_node` pattern"
contains: TSQuery
"AST pattern that SHOULD match subtrees of `enclosing_node`. " "Number of matches should be within the range of `at_least` and `at_most`."
at_least: int
"The minimum number of times the contains query should match in the enclosing node"
at_most: int
"The maximum number of times the contains query should match in the enclosing node"
child_count: int
"Number of named children under the primary matched node"
sibling_count: int
"Number of named siblings of the primary matched node"
def __init__(
self,
enclosing_node: Optional[str] = None,
not_enclosing_node: Optional[str] = None,
not_contains: list[str] = [],
contains: Optional[str] = None,
at_least: int = 1,
at_most: int = 4294967295, # u32::MAX
child_count: int = 4294967295, # u32::MAX
sibling_count: int = 4294967295, # u32::MAX
):
"""
Constructs `Filter`
Parameters
------------
enclosing_node: str
AST patterns that some ancestor node of the primary match should comply
not_contains: list[str]
AST patterns that should not match any subtree of node matching `enclosing_node` pattern
"""
...
class Rule:
"""A class to capture Piranha Rule"""
name: str
"Name of the rule"
query: TSQuery
"Tree-sitter query as string"
replace_node: str
"The tag corresponding to the node to be replaced"
replace_node_idx: str
"The i'th child of node corresponding to the replace_node tag will be replaced"
replace: str
"Replacement pattern"
groups: set[str]
"Group(s) to which the rule belongs"
holes: set[str]
"Holes that need to be filled, in order to instantiate a rule"
filters: set[Filter]
"Filters to test before applying a rule"
is_seed_rule: bool
"Marks a rule as a seed rule"
def __init__(
self,
name: str,
query: Optional[str] = None,
replace_node: Optional[str] = None,
replace: Optional[str] = None,
groups: set[str] = set(),
holes: set[str] = set(),
filters: set[Filter] = set(),
is_seed_rule: bool = True,
):
"""
Constructs `Rule`
Parameters
------------
name: str
Name of the rule
query: str
Tree-sitter query as string
replace_node: str
The tag corresponding to the node to be replaced
replace: str
Replacement pattern
groups: set[str]
Group(s) to which the rule belongs
holes: set[str]
Holes that need to be filled, in order to instantiate a rule
filters: set[Filter]
Filters to test before applying a rule
is_seed_rule: bool
Marks a rule as a seed rule
"""
...
class OutgoingEdges:
frm: str
"The source rule or group of rules"
to: list[str]
"The target edges or groups of edges"
scope: str
"The scope label for the edge"
def __init__(
self,
frm: str,
to: list[str],
scope: str,
):
"""
Constructs `OutgoingEdge`
Parameters
------------
frm: str
The source rule or group of rules
to: list[str]
The target edges or groups of edges
scope: str
The scope label for the edge
"""
...
class RuleGraph:
rules: list[Rule]
"The rules in the graph"
edges: list[OutgoingEdges]
"The edges in the graph"
graph: dict
"The graph itself (as an adjacency list)"
def __init__(
self,
rules: list[Rule],
edges: list[OutgoingEdges],
):
"""
Constructs `OutgoingEdge`
Parameters
------------
rules: list[Rule]
The rules in the graph
edges: list[OutgoingEdges]
The edges in the graph
"""
...
class TSQuery:
"Captures a Tree sitter query"
def query(self):
"""The query"""
...