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Fix RealVal() fraction string parsing and stage prior uncommitted work #11

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Merged
kiranandcode merged 2 commits into from
May 27, 2026
Merged

Fix RealVal() fraction string parsing and stage prior uncommitted work #11

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23e1444
Fix RealVal() fraction string parsing and stage prior uncommitted work
kiranandcode May 27, 2026
ad95e8d
Remove dead _CharSortRef alias
kiranandcode May 27, 2026
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115 changes: 115 additions & 0 deletions lean_py/z3/_ast.py
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Original file line number Diff line number Diff line change
Expand Up @@ -78,6 +78,16 @@ class InductiveASTSort:
name: str


@dataclass(frozen=True)
class CharASTSort:
pass


@dataclass(frozen=True)
class SeqASTSort:
elem: ASTSort


ASTSort = Union[
PropSort,
IntASTSort,
Expand All @@ -91,6 +101,8 @@ class InductiveASTSort:
FpASTSort,
FinDomainASTSort,
InductiveASTSort,
CharASTSort,
SeqASTSort,
]

# ---------------------------------------------------------------------------
Expand Down Expand Up @@ -461,6 +473,81 @@ class InductiveRecognizerNode:
arg: ASTNode


# ---------------------------------------------------------------------------
# Char expression nodes
# ---------------------------------------------------------------------------


@dataclass(frozen=True)
class CharLit:
val: int


@dataclass(frozen=True)
class CharToNatNode:
arg: ASTNode


@dataclass(frozen=True)
class CharFromBvNode:
arg: ASTNode


@dataclass(frozen=True)
class CharIsDigitNode:
arg: ASTNode


# ---------------------------------------------------------------------------
# Sequence expression nodes
# ---------------------------------------------------------------------------


@dataclass(frozen=True)
class SeqEmptyNode:
elem_sort: ASTSort


@dataclass(frozen=True)
class SeqUnitNode:
arg: ASTNode


@dataclass(frozen=True)
class SeqLenNode:
arg: ASTNode


@dataclass(frozen=True)
class SeqConcatNode:
lhs: ASTNode
rhs: ASTNode


@dataclass(frozen=True)
class SeqContainsNode:
haystack: ASTNode
needle: ASTNode


@dataclass(frozen=True)
class SeqPrefixOfNode:
prefix_: ASTNode
s: ASTNode


@dataclass(frozen=True)
class SeqSuffixOfNode:
suffix_: ASTNode
s: ASTNode


@dataclass(frozen=True)
class SeqNthNode:
s: ASTNode
idx: ASTNode


ASTNode = Union[
Var,
IntLit,
Expand Down Expand Up @@ -511,6 +598,18 @@ class InductiveRecognizerNode:
InductiveCtorNode,
InductiveAccessorNode,
InductiveRecognizerNode,
CharLit,
CharToNatNode,
CharFromBvNode,
CharIsDigitNode,
SeqEmptyNode,
SeqUnitNode,
SeqLenNode,
SeqConcatNode,
SeqContainsNode,
SeqPrefixOfNode,
SeqSuffixOfNode,
SeqNthNode,
]

__all__ = [
Expand Down Expand Up @@ -585,5 +684,21 @@ class InductiveRecognizerNode:
"InductiveCtorNode",
"InductiveAccessorNode",
"InductiveRecognizerNode",
# Char nodes
"CharASTSort",
"CharLit",
"CharToNatNode",
"CharFromBvNode",
"CharIsDigitNode",
# Seq nodes
"SeqASTSort",
"SeqEmptyNode",
"SeqUnitNode",
"SeqLenNode",
"SeqConcatNode",
"SeqContainsNode",
"SeqPrefixOfNode",
"SeqSuffixOfNode",
"SeqNthNode",
"ASTNode",
]
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