Add Chapter 29 for tech debt cleanup with the parser splitmain

Keep Chapter 28b intact and carry the grammar-oriented parser package, Var move, IterPeeps move, and parser regression tests into Chapter 29. Defer privacy and exclude its experimental tests and fixture changes.

Register the chapter in the indexes, IntelliJ modules and run configurations, Maven reactor, roadmap, and linear-history publisher. Windows and Linux each pass 573 tests, release builds, 199 allocation replays, and 29 native checks.

1 files changed, 37 insertions, 0 deletions

diff --git a/chapter29/src/test/java/com/seaofnodes/simple/ChainedComparisonTest.java b/chapter29/src/test/java/com/seaofnodes/simple/ChainedComparisonTest.java
new file mode 100644
index 00000000..8db9c024
--- /dev/null
+++ b/chapter29/src/test/java/com/seaofnodes/simple/ChainedComparisonTest.java
@@ -0,0 +1,37 @@
+package com.seaofnodes.simple;
+
+import com.seaofnodes.simple.codegen.CodeGen;
+import com.seaofnodes.simple.type.TypeInteger;
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+public class ChainedComparisonTest {
+    @Test public void testAdjacentOperandsAndOperators() {
+        String[] expressions = {"10 < arg < 20", "0 < arg <= 3", "3 >= arg > 0",
+                                "0 <= arg < 3", "0 < arg <= 3 < 4"};
+        String[][] expected = {{"0","0","1","0"}, {"0","1","0","0"},
+                               {"0","1","0","0"}, {"1","0","0","0"},
+                               {"0","1","0","0"}};
+        int[] args = {0,3,15,30};
+        for(int i=0;i<expressions.length;i++) {
+            CodeGen code = new CodeGen("return "+expressions[i]+";").driver(CodeGen.Phase.TypeCheck);
+            for(int j=0;j<args.length;j++) assertEquals(expressions[i],expected[i][j],Eval2.eval(code,args[j]));
+        }
+    }
+
+    @Test public void testSingleEvaluationAndShortCircuit() {
+        for(int seed:new int[]{2,13,123}) {
+            CodeGen code = new CodeGen("int x=arg; int y=0; val b=0 < x++ <= (y+=3) < (y+=1); return x*100+y*10+b;",seed,true)
+                .driver(CodeGen.Phase.TypeCheck);
+            assertEquals("100",Eval2.eval(code,0));
+            assertEquals("441",Eval2.eval(code,3));
+            assertEquals("530",Eval2.eval(code,4));
+        }
+        try {
+            new CodeGen("return 0 < arg > 1;").parse();
+            fail("mixed directions");
+        } catch(RuntimeException e) {
+            assertEquals("Mixing relational directions in a chained relational test",e.getMessage());
+        }
+    }
+}