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@ -22,6 +22,36 @@ module Lox
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nil
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end
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def visit_expr(stmt)
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resolve(stmt.expr)
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nil
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end
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def visit_function(stmt)
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declare(stmt.name)
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define(stmt.name)
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resolve_function(stmt)
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nil
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end
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def visit_if(stmt)
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resolve(stmt.condition)
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resolve(stmt.then)
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resolve(stmt.else) if stmt.else
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nil
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end
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def visit_print(stmt)
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resolve(stmt.expr)
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nil
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end
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def visit_return(stmt)
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resolve(stmt.value) if stmt.value
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nil
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end
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def visit_var(stmt)
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declare(stmt.name)
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resolve(stmt.initializer) if stmt.initializer
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@ -29,6 +59,12 @@ module Lox
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nil
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end
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def visit_while(stmt)
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resolve(stmt.condition)
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resolve(stmt.body)
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nil
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end
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def visit_variable(expr)
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if !@scopes.empty? && @scopes.last[expr.name.lexeme] == false
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raise ResolverError.new(expr.name, "Can't read local variable in its own initializer.")
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@ -44,11 +80,33 @@ module Lox
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nil
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end
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def visit_function(stmt)
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declare(stmt.name)
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define(stmt.name)
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def visit_binary(expr)
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resolve(expr.left)
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resolve(expr.right)
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nil
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end
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resolve_function(stmt)
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def visit_call(expr)
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resolve(expr.callee, *expr.args)
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nil
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end
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def visit_grouping(expr)
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resolve(expr.expr)
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nil
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end
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def visit_literal(expr)
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nil
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end
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def visit_logical(expr)
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resolve(expr.left, expr.right)
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nil
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end
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def visit_unary(expr)
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resolve(expr.right)
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nil
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end
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