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/shift.rs

@@ -0,0 +1,27 @@
+use crate::parser::{NyashParser, ParseError};
+use crate::parser::common::ParserUtils;
+use crate::tokenizer::TokenType;
+use crate::ast::{ASTNode, BinaryOperator, Span};
+
+impl NyashParser {
+    pub(crate) fn expr_parse_shift(&mut self) -> Result<ASTNode, ParseError> {
+        let mut expr = self.expr_parse_factor()?;
+        loop {
+            if self.match_token(&TokenType::ShiftLeft) {
+                self.advance();
+                let rhs = self.expr_parse_factor()?;
+                expr = ASTNode::BinaryOp { operator: BinaryOperator::Shl, left: Box::new(expr), right: Box::new(rhs), span: Span::unknown() };
+                continue;
+            }
+            if self.match_token(&TokenType::ShiftRight) {
+                self.advance();
+                let rhs = self.expr_parse_factor()?;
+                expr = ASTNode::BinaryOp { operator: BinaryOperator::Shr, left: Box::new(expr), right: Box::new(rhs), span: Span::unknown() };
+                continue;
+            }
+            break;
+        }
+        Ok(expr)
+    }
+}
+