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Use std::rc::Rc types for variable declarations

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These fields may have to be shared in other data structures, such as a
variable declaration stack. In order to accomplish that, it’s necessary
to wrap the variable declarations in std::rc::Rc.
This commit is contained in:
Patrick Lühne 2020-02-02 17:44:49 +01:00
parent 3e6e68f6ea
commit 6163c5b259
Signed by: patrick
GPG Key ID: 05F3611E97A70ABF
1 changed files with 6 additions and 6 deletions
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12
src/ast.rs
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@ -258,13 +258,13 @@ impl Compare
pub struct Exists
{
pub parameters: VariableDeclarations,
pub parameters: std::rc::Rc<VariableDeclarations>,
pub argument: Box<Formula>,
}
impl Exists
{
pub fn new(parameters: VariableDeclarations, argument: Box<Formula>) -> Self
pub fn new(parameters: std::rc::Rc<VariableDeclarations>, argument: Box<Formula>) -> Self
{
Self
{
@ -276,13 +276,13 @@ impl Exists
pub struct ForAll
{
pub parameters: VariableDeclarations,
pub parameters: std::rc::Rc<VariableDeclarations>,
pub argument: Box<Formula>,
}
impl ForAll
{
pub fn new(parameters: VariableDeclarations, argument: Box<Formula>) -> Self
pub fn new(parameters: std::rc::Rc<VariableDeclarations>, argument: Box<Formula>) -> Self
{
Self
{
@ -504,7 +504,7 @@ impl Formula
Self::Compare(Compare::new(operator, left, right))
}
pub fn exists(parameters: VariableDeclarations, argument: Box<Formula>) -> Self
pub fn exists(parameters: std::rc::Rc<VariableDeclarations>, argument: Box<Formula>) -> Self
{
Self::Exists(Exists::new(parameters, argument))
}
@ -519,7 +519,7 @@ impl Formula
Self::boolean(false)
}
pub fn for_all(parameters: VariableDeclarations, argument: Box<Formula>) -> Self
pub fn for_all(parameters: std::rc::Rc<VariableDeclarations>, argument: Box<Formula>) -> Self
{
Self::ForAll(ForAll::new(parameters, argument))
}