patrick/foliage-rs
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Refactoring

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This commit is contained in:
Patrick Lühne 2020-04-09 15:16:36 +02:00
parent f949c0f3f8
commit 680f17bda0
Signed by: patrick
GPG Key ID: 05F3611E97A70ABF
2 changed files with 38 additions and 40 deletions
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34
src/format/formulas.rs
View File

@ -29,7 +29,7 @@ impl std::fmt::Display for crate::PredicateDeclaration
} }
#[derive(Clone, Copy, Eq, PartialEq)] #[derive(Clone, Copy, Eq, PartialEq)]
enum FormulaChildPosition enum FormulaPosition
{ {
Any, Any,
ImpliesAntecedent, ImpliesAntecedent,
@ -39,7 +39,7 @@ struct FormulaDisplay<'formula>
{ {
formula: &'formula crate::Formula, formula: &'formula crate::Formula,
parent_formula: Option<&'formula crate::Formula>, parent_formula: Option<&'formula crate::Formula>,
position: FormulaChildPosition, position: FormulaPosition,
} }
impl<'formula> FormulaDisplay<'formula> impl<'formula> FormulaDisplay<'formula>
@ -97,7 +97,7 @@ impl<'formula> FormulaDisplay<'formula>
{ {
// Implications with the same direction nested on the antecedent side // Implications with the same direction nested on the antecedent side
// require parentheses because implication is considered right-associative // require parentheses because implication is considered right-associative
self.position == FormulaChildPosition::ImpliesAntecedent self.position == FormulaPosition::ImpliesAntecedent
} }
else else
{ {
@ -113,7 +113,7 @@ impl<'formula> FormulaDisplay<'formula>
} }
fn display_formula<'formula>(formula: &'formula crate::Formula, fn display_formula<'formula>(formula: &'formula crate::Formula,
parent_formula: Option<&'formula crate::Formula>, position: FormulaChildPosition) parent_formula: Option<&'formula crate::Formula>, position: FormulaPosition)
-> FormulaDisplay<'formula> -> FormulaDisplay<'formula>
{ {
FormulaDisplay FormulaDisplay
@ -158,7 +158,7 @@ impl<'formula> std::fmt::Debug for FormulaDisplay<'formula>
} }
write!(format, " {:?}", display_formula(&exists.argument, Some(self.formula), write!(format, " {:?}", display_formula(&exists.argument, Some(self.formula),
FormulaChildPosition::Any))?; FormulaPosition::Any))?;
} }
}, },
crate::Formula::ForAll(for_all) => crate::Formula::ForAll(for_all) =>
@ -182,11 +182,11 @@ impl<'formula> std::fmt::Debug for FormulaDisplay<'formula>
} }
write!(format, " {:?}", display_formula(&for_all.argument, Some(self.formula), write!(format, " {:?}", display_formula(&for_all.argument, Some(self.formula),
FormulaChildPosition::Any))?; FormulaPosition::Any))?;
} }
}, },
crate::Formula::Not(argument) => write!(format, "not {:?}", crate::Formula::Not(argument) => write!(format, "not {:?}",
display_formula(argument, Some(self.formula), FormulaChildPosition::Any))?, display_formula(argument, Some(self.formula), FormulaPosition::Any))?,
crate::Formula::And(arguments) => crate::Formula::And(arguments) =>
{ {
if arguments.is_empty() if arguments.is_empty()
@ -198,7 +198,7 @@ impl<'formula> std::fmt::Debug for FormulaDisplay<'formula>
let (parent_formula, position) = match arguments.len() let (parent_formula, position) = match arguments.len()
{ {
1 => (self.parent_formula, self.position), 1 => (self.parent_formula, self.position),
_ => (Some(self.formula), FormulaChildPosition::Any), _ => (Some(self.formula), FormulaPosition::Any),
}; };
let mut separator = ""; let mut separator = "";
@ -223,7 +223,7 @@ impl<'formula> std::fmt::Debug for FormulaDisplay<'formula>
let (parent_formula, position) = match arguments.len() let (parent_formula, position) = match arguments.len()
{ {
1 => (self.parent_formula, self.position), 1 => (self.parent_formula, self.position),
_ => (Some(self.formula), FormulaChildPosition::Any), _ => (Some(self.formula), FormulaPosition::Any),
}; };
let mut separator = ""; let mut separator = "";
@ -243,13 +243,13 @@ impl<'formula> std::fmt::Debug for FormulaDisplay<'formula>
{ {
write!(format, "{:?}", write!(format, "{:?}",
display_formula(antecedent, Some(self.formula), display_formula(antecedent, Some(self.formula),
FormulaChildPosition::ImpliesAntecedent)) FormulaPosition::ImpliesAntecedent))
}; };
let format_implication = |format: &mut std::fmt::Formatter| -> Result<_, _> let format_implication = |format: &mut std::fmt::Formatter| -> Result<_, _>
{ {
write!(format, "{:?}", write!(format, "{:?}",
display_formula(implication, Some(self.formula), FormulaChildPosition::Any)) display_formula(implication, Some(self.formula), FormulaPosition::Any))
}; };
match direction match direction
@ -279,7 +279,7 @@ impl<'formula> std::fmt::Debug for FormulaDisplay<'formula>
let (parent_formula, position) = match arguments.len() let (parent_formula, position) = match arguments.len()
{ {
1 => (self.parent_formula, self.position), 1 => (self.parent_formula, self.position),
_ => (Some(self.formula), FormulaChildPosition::Any), _ => (Some(self.formula), FormulaPosition::Any),
}; };
let mut separator = ""; let mut separator = "";
@ -306,9 +306,9 @@ impl<'formula> std::fmt::Debug for FormulaDisplay<'formula>
}; };
write!(format, "{:?} {} {:?}", write!(format, "{:?} {} {:?}",
display_term(&compare.left, None, TermChildPosition::Any), display_term(&compare.left, None, TermPosition::Any),
operator_string, operator_string,
display_term(&compare.right, None, TermChildPosition::Any))? display_term(&compare.right, None, TermPosition::Any))?;
}, },
crate::Formula::Boolean(true) => write!(format, "true")?, crate::Formula::Boolean(true) => write!(format, "true")?,
crate::Formula::Boolean(false) => write!(format, "false")?, crate::Formula::Boolean(false) => write!(format, "false")?,
@ -325,7 +325,7 @@ impl<'formula> std::fmt::Debug for FormulaDisplay<'formula>
for argument in &predicate.arguments for argument in &predicate.arguments
{ {
write!(format, "{}{:?}", separator, display_term(argument, None, write!(format, "{}{:?}", separator, display_term(argument, None,
TermChildPosition::Any))?; TermPosition::Any))?;
separator = ", " separator = ", "
} }
@ -356,7 +356,7 @@ impl std::fmt::Debug for crate::Formula
{ {
fn fmt(&self, format: &mut std::fmt::Formatter) -> std::fmt::Result fn fmt(&self, format: &mut std::fmt::Formatter) -> std::fmt::Result
{ {
write!(format, "{:?}", display_formula(&self, None, FormulaChildPosition::Any)) write!(format, "{:?}", display_formula(&self, None, FormulaPosition::Any))
} }
} }
@ -364,7 +364,7 @@ impl std::fmt::Display for crate::Formula
{ {
fn fmt(&self, format: &mut std::fmt::Formatter) -> std::fmt::Result fn fmt(&self, format: &mut std::fmt::Formatter) -> std::fmt::Result
{ {
write!(format, "{}", display_formula(&self, None, FormulaChildPosition::Any)) write!(format, "{}", display_formula(&self, None, FormulaPosition::Any))
} }
} }

44
src/format/terms.rs
View File

@ -1,5 +1,5 @@
#[derive(Clone, Copy, Eq, PartialEq)] #[derive(Clone, Copy, Eq, PartialEq)]
pub(crate) enum TermChildPosition pub(crate) enum TermPosition
{ {
Any, Any,
Left, Left,
@ -62,7 +62,7 @@ pub(crate) struct TermDisplay<'term>
{ {
term: &'term crate::Term, term: &'term crate::Term,
parent_term: Option<&'term crate::Term>, parent_term: Option<&'term crate::Term>,
position: TermChildPosition, position: TermPosition,
} }
impl<'term> TermDisplay<'term> impl<'term> TermDisplay<'term>
@ -110,7 +110,7 @@ impl<'term> TermDisplay<'term>
{ {
crate::BinaryOperator::Exponentiate => crate::BinaryOperator::Exponentiate =>
parent_binary_operation.operator == crate::BinaryOperator::Exponentiate parent_binary_operation.operator == crate::BinaryOperator::Exponentiate
&& self.position == TermChildPosition::Left, && self.position == TermPosition::Left,
crate::BinaryOperator::Multiply crate::BinaryOperator::Multiply
| crate::BinaryOperator::Divide | crate::BinaryOperator::Divide
=> match parent_binary_operation.operator => match parent_binary_operation.operator
@ -118,7 +118,7 @@ impl<'term> TermDisplay<'term>
crate::BinaryOperator::Exponentiate => true, crate::BinaryOperator::Exponentiate => true,
crate::BinaryOperator::Divide crate::BinaryOperator::Divide
| crate::BinaryOperator::Modulo | crate::BinaryOperator::Modulo
=> self.position == TermChildPosition::Right, => self.position == TermPosition::Right,
_ => false, _ => false,
}, },
crate::BinaryOperator::Modulo => match parent_binary_operation.operator crate::BinaryOperator::Modulo => match parent_binary_operation.operator
@ -127,7 +127,7 @@ impl<'term> TermDisplay<'term>
crate::BinaryOperator::Multiply crate::BinaryOperator::Multiply
| crate::BinaryOperator::Divide | crate::BinaryOperator::Divide
| crate::BinaryOperator::Modulo | crate::BinaryOperator::Modulo
=> self.position == TermChildPosition::Right, => self.position == TermPosition::Right,
_ => false, _ => false,
}, },
crate::BinaryOperator::Add crate::BinaryOperator::Add
@ -140,7 +140,7 @@ impl<'term> TermDisplay<'term>
| crate::BinaryOperator::Modulo | crate::BinaryOperator::Modulo
=> true, => true,
crate::BinaryOperator::Subtract crate::BinaryOperator::Subtract
=> self.position == TermChildPosition::Right, => self.position == TermPosition::Right,
_ => false, _ => false,
}, },
} }
@ -150,7 +150,7 @@ impl<'term> TermDisplay<'term>
} }
pub(crate) fn display_term<'term>(term: &'term crate::Term, parent_term: Option<&'term crate::Term>, pub(crate) fn display_term<'term>(term: &'term crate::Term, parent_term: Option<&'term crate::Term>,
position: TermChildPosition) position: TermPosition)
-> TermDisplay<'term> -> TermDisplay<'term>
{ {
TermDisplay TermDisplay
@ -174,13 +174,13 @@ impl<'term> std::fmt::Debug for TermDisplay<'term>
match &self.term match &self.term
{ {
crate::Term::Boolean(true) => write!(format, "true"), crate::Term::Boolean(true) => write!(format, "true")?,
crate::Term::Boolean(false) => write!(format, "false"), crate::Term::Boolean(false) => write!(format, "false")?,
crate::Term::SpecialInteger(value) => write!(format, "{:?}", value), crate::Term::SpecialInteger(value) => write!(format, "{:?}", value)?,
crate::Term::Integer(value) => write!(format, "{}", value), crate::Term::Integer(value) => write!(format, "{}", value)?,
crate::Term::String(value) => write!(format, "\"{}\"", crate::Term::String(value) => write!(format, "\"{}\"",
value.replace("\\", "\\\\").replace("\n", "\\n").replace("\t", "\\t")), value.replace("\\", "\\\\").replace("\n", "\\n").replace("\t", "\\t"))?,
crate::Term::Variable(variable) => write!(format, "{:?}", variable.declaration), crate::Term::Variable(variable) => write!(format, "{:?}", variable.declaration)?,
crate::Term::Function(function) => crate::Term::Function(function) =>
{ {
write!(format, "{}", function.declaration.name)?; write!(format, "{}", function.declaration.name)?;
@ -198,15 +198,13 @@ impl<'term> std::fmt::Debug for TermDisplay<'term>
for argument in &function.arguments for argument in &function.arguments
{ {
write!(format, "{}{:?}", separator, write!(format, "{}{:?}", separator,
display_term(&argument, Some(self.term), TermChildPosition::Any))?; display_term(&argument, Some(self.term), TermPosition::Any))?;
separator = ", "; separator = ", ";
} }
write!(format, ")")?; write!(format, ")")?;
} }
Ok(())
}, },
crate::Term::BinaryOperation(binary_operation) => crate::Term::BinaryOperation(binary_operation) =>
{ {
@ -221,19 +219,19 @@ impl<'term> std::fmt::Debug for TermDisplay<'term>
}; };
write!(format, "{:?} {} {:?}", write!(format, "{:?} {} {:?}",
display_term(&binary_operation.left, Some(self.term), TermChildPosition::Left), display_term(&binary_operation.left, Some(self.term), TermPosition::Left),
operator_string, operator_string,
display_term(&binary_operation.right, Some(self.term), TermChildPosition::Right)) display_term(&binary_operation.right, Some(self.term), TermPosition::Right))?;
}, },
crate::Term::UnaryOperation( crate::Term::UnaryOperation(
crate::UnaryOperation{operator: crate::UnaryOperator::Negative, argument}) crate::UnaryOperation{operator: crate::UnaryOperator::Negative, argument})
=> write!(format, "-{:?}", => write!(format, "-{:?}",
display_term(argument, Some(self.term), TermChildPosition::Any)), display_term(argument, Some(self.term), TermPosition::Any))?,
crate::Term::UnaryOperation( crate::Term::UnaryOperation(
crate::UnaryOperation{operator: crate::UnaryOperator::AbsoluteValue, argument}) crate::UnaryOperation{operator: crate::UnaryOperator::AbsoluteValue, argument})
=> write!(format, "|{:?}|", => write!(format, "|{:?}|",
display_term(argument, Some(self.term), TermChildPosition::Any)), display_term(argument, Some(self.term), TermPosition::Any))?,
}?; }
if requires_parentheses if requires_parentheses
{ {
@ -256,7 +254,7 @@ impl std::fmt::Debug for crate::Term
{ {
fn fmt(&self, format: &mut std::fmt::Formatter) -> std::fmt::Result fn fmt(&self, format: &mut std::fmt::Formatter) -> std::fmt::Result
{ {
write!(format, "{:?}", display_term(&self, None, TermChildPosition::Any)) write!(format, "{:?}", display_term(&self, None, TermPosition::Any))
} }
} }
@ -264,7 +262,7 @@ impl std::fmt::Display for crate::Term
{ {
fn fmt(&self, format: &mut std::fmt::Formatter) -> std::fmt::Result fn fmt(&self, format: &mut std::fmt::Formatter) -> std::fmt::Result
{ {
write!(format, "{}", display_term(&self, None, TermChildPosition::Any)) write!(format, "{}", display_term(&self, None, TermPosition::Any))
} }
} }