runner/env: centralize CLI/env getters; parser expr split (call/primary); verifier utils direct; optimizer: boxfield peephole; LLVM: branch cond normalize hook; add trace macro scaffolding; refactor common.rs verbose checks

src/parser/expr/range.rs

@@ -0,0 +1,28 @@
+use crate::parser::{NyashParser, ParseError};
+use crate::parser::common::ParserUtils;
+use crate::tokenizer::TokenType;
+use crate::ast::{ASTNode, Span};
+
+#[inline]
+fn is_sugar_enabled() -> bool { crate::parser::sugar_gate::is_enabled() }
+
+impl NyashParser {
+    pub(crate) fn expr_parse_range(&mut self) -> Result<ASTNode, ParseError> {
+        let mut expr = self.expr_parse_term()?;
+        while self.match_token(&TokenType::RANGE) {
+            if !is_sugar_enabled() {
+                let line = self.current_token().line;
+                return Err(ParseError::UnexpectedToken {
+                    found: self.current_token().token_type.clone(),
+                    expected: "enable NYASH_SYNTAX_SUGAR_LEVEL=basic|full for '..'".to_string(),
+                    line,
+                });
+            }
+            self.advance();
+            let rhs = self.expr_parse_term()?;
+            expr = ASTNode::FunctionCall { name: "Range".to_string(), arguments: vec![expr, rhs], span: Span::unknown() };
+        }
+        Ok(expr)
+    }
+}
+