tseeker-pub/rust-crafting-interpreters-part-1
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AST - Break and continue

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Emmanuel BENOîT 2023-01-01 19:55:30 +01:00
parent a403799d22
commit 154d072ca8
1 changed files with 6 additions and 0 deletions
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6
src/ast.rs
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@ -30,6 +30,10 @@ pub enum StmtNode {
condition: ExprNode, condition: ExprNode,
body: Box<StmtNode>, body: Box<StmtNode>,
}, },
/// Break statement
BreakStmt,
/// Continue statement
ContinueStmt,
} }
/// An AST node that represents an expression. /// An AST node that represents an expression.
@ -93,6 +97,8 @@ impl AstDumper for StmtNode {
match self { match self {
Self::VarDecl(name, Some(expr)) => format!("( var {} {} )", name.lexeme, expr.dump()), Self::VarDecl(name, Some(expr)) => format!("( var {} {} )", name.lexeme, expr.dump()),
Self::VarDecl(name, None) => format!("( var {} nil )", name.lexeme), Self::VarDecl(name, None) => format!("( var {} nil )", name.lexeme),
Self::BreakStmt => String::from("break"),
Self::ContinueStmt => String::from("continue"),
Self::Expression(expr) => format!("{}", expr.dump()), Self::Expression(expr) => format!("{}", expr.dump()),
Self::Print(expr) => format!("(print {})", expr.dump()), Self::Print(expr) => format!("(print {})", expr.dump()),