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158 lines
4.1 KiB
Python
158 lines
4.1 KiB
Python
import re
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from dataclasses import dataclass, field
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from typing import List, ClassVar
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# taken from https://en.cppreference.com/w/cpp/keyword
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cpp_keywords = {"alignas", "alignof", "and", "and_eq", "asm", "atomic_cancel", "atomic_commit", "atomic_noexcept",
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"auto", "bitand", "bitor", "bool", "break", "case", "catch", "char", "char8_t", "char16_t", "char32_t",
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"class", "compl", "concept", "const", "consteval", "constexpr", "constinit", "const_cast", "continue",
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"co_await", "co_return", "co_yield", "decltype", "default", "delete", "do", "double", "dynamic_cast",
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"else", "enum", "explicit", "export", "extern", "false", "float", "for", "friend", "goto", "if",
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"inline", "int", "long", "mutable", "namespace", "new", "noexcept", "not", "not_eq", "nullptr",
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"operator", "or", "or_eq", "private", "protected", "public", "reflexpr", "register", "reinterpret_cast",
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"requires", "return", "short", "signed", "sizeof", "static", "static_assert", "static_cast", "struct",
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"switch", "synchronized", "template", "this", "thread_local", "throw", "true", "try", "typedef",
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"typeid", "typename", "union", "unsigned", "using", "virtual", "void", "volatile", "wchar_t", "while",
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"xor", "xor_eq"}
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_field_overrides = [
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(re.compile(r"(start|end)_(line|column)|index|num_.*"), {"type": "unsigned"}),
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(re.compile(r"(.*)_"), lambda m: {"name": m[1]}),
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]
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def get_field_override(field: str):
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for r, o in _field_overrides:
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m = r.fullmatch(field)
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if m:
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return o(m) if callable(o) else o
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return {}
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@dataclass
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class Field:
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name: str
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type: str
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is_optional: bool = False
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is_repeated: bool = False
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trap_name: str = None
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first: bool = False
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def __post_init__(self):
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if self.is_optional:
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self.type = f"std::optional<{self.type}>"
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if self.is_repeated:
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self.type = f"std::vector<{self.type}>"
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@property
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def cpp_name(self):
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if self.name in cpp_keywords:
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return self.name + "_"
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return self.name
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# using @property breaks pystache internals here
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def get_streamer(self):
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if self.type == "std::string":
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return lambda x: f"trapQuoted({x})"
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elif self.type == "bool":
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return lambda x: f'({x} ? "true" : "false")'
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else:
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return lambda x: x
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@property
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def is_single(self):
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return not (self.is_optional or self.is_repeated)
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@dataclass
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class Trap:
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table_name: str
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name: str
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fields: List[Field]
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id: Field = None
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def __post_init__(self):
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assert self.fields
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self.fields[0].first = True
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@dataclass
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class TagBase:
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base: str
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first: bool = False
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@dataclass
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class Tag:
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name: str
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bases: List[TagBase]
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index: int
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id: str
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def __post_init__(self):
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if self.bases:
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self.bases = [TagBase(b) for b in self.bases]
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self.bases[0].first = True
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@property
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def has_bases(self):
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return bool(self.bases)
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@dataclass
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class TrapList:
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template: ClassVar = 'trap_traps'
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traps: List[Trap]
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namespace: str
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trap_suffix: str
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include_dir: str
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@dataclass
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class TagList:
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template: ClassVar = 'trap_tags'
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tags: List[Tag]
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namespace: str
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@dataclass
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class ClassBase:
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ref: 'Class'
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first: bool = False
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@dataclass
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class Class:
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name: str
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bases: List[ClassBase] = field(default_factory=list)
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final: bool = False
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fields: List[Field] = field(default_factory=list)
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trap_name: str = None
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def __post_init__(self):
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self.bases = [ClassBase(c) for c in sorted(self.bases, key=lambda cls: cls.name)]
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if self.bases:
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self.bases[0].first = True
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@property
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def has_bases(self):
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return bool(self.bases)
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@property
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def single_fields(self):
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return [f for f in self.fields if f.is_single]
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@dataclass
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class ClassList:
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template: ClassVar = "cpp_classes"
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classes: List[Class]
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namespace: str
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trap_suffix: str
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include_dir: str
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