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, 159 insertions, 0 deletions

diff --git a/chapter29/src/test/java/com/seaofnodes/simple/Chapter04Test.java b/chapter29/src/test/java/com/seaofnodes/simple/Chapter04Test.java
new file mode 100644
index 00000000..1132375e
--- /dev/null
+++ b/chapter29/src/test/java/com/seaofnodes/simple/Chapter04Test.java
@@ -0,0 +1,159 @@
+package com.seaofnodes.simple;
+
+import com.seaofnodes.simple.codegen.CodeGen;
+import com.seaofnodes.simple.node.*;
+import com.seaofnodes.simple.type.TypeInteger;
+import org.junit.Test;
+import org.junit.Ignore;
+
+import static org.junit.Assert.*;
+
+public class Chapter04Test {
+
+    @Test
+    public void testPeephole() {
+        CodeGen code = new CodeGen("return 1+arg+2; ");
+        code.parse();
+        assertEquals("return (arg+3);", code.print());
+    }
+
+    @Test
+    public void testPeephole2() {
+        CodeGen code = new CodeGen("return (1+arg)+2;");
+        code.parse();
+        assertEquals("return (arg+3);", code.print());
+    }
+
+    @Test
+    public void testAdd0() {
+        CodeGen code = new CodeGen("return 0+arg;");
+        code.parse();
+        assertEquals("return arg;", code.print());
+    }
+
+    @Test
+    public void testAddAddMul() {
+        CodeGen code = new CodeGen("return arg+0+arg;");
+        code.parse();
+        assertEquals("return (arg<<1);", code.print());
+    }
+
+    @Test
+    public void testPeephole3() {
+        CodeGen code = new CodeGen("return 1+arg+2+arg+3; ");
+        code.parse();
+        assertEquals("return ((arg<<1)+6);", code.print());
+    }
+
+    @Test
+    public void testMul1() {
+        CodeGen code = new CodeGen("return 1*arg;");
+        code.parse();
+        assertEquals("return arg;", code.print());
+    }
+
+    @Test
+    public void testSub0() {
+        CodeGen code = new CodeGen("return arg-0;");
+        code.parse();
+        assertEquals("return arg;", code.print());
+    }
+
+    @Test
+    public void test0Sub() {
+        CodeGen code = new CodeGen("return 0-arg;");
+        code.parse();
+        assertEquals("return (-arg);", code.print());
+    }
+
+    @Test
+    public void testSubNeg() {
+        CodeGen code = new CodeGen("return 3--arg;");
+        code.parse();
+        assertEquals("return (arg+3);", code.print());
+    }
+
+    @Test
+    public void testNegSub() {
+        CodeGen code = new CodeGen("return -arg-3;");
+        code.parse();
+        assertEquals("return (-(arg+3));", code.print());
+    }
+
+    @Test
+    public void testVarArg() {
+        CodeGen code = new CodeGen("return arg; ");
+        code.parse();
+        assertTrue(code.ctrl() instanceof  FunNode);
+        assertTrue(code.expr() instanceof ParmNode);
+    }
+
+    // Adding functions means `main` does not constant fold the incoming arg value
+    @Ignore @Test
+    public void testConstantArg() {
+        CodeGen code = new CodeGen("return arg; ", TypeInteger.constant(2)).parse();
+        assertEquals("return 2;", code.expr().in(1).toString());
+    }
+
+    @Test
+    public void testCompEq() {
+        CodeGen code = new CodeGen("return 3==3; ");
+        code.parse();
+        assertEquals("return 1;", code.print());
+    }
+
+    @Test
+    public void testCompEq2() {
+        CodeGen code = new CodeGen("return 3==4; ");
+        code.parse();
+        assertEquals("return 0;", code.print());
+    }
+
+    @Test
+    public void testCompNEq() {
+        CodeGen code = new CodeGen("return 3!=3; ");
+        code.parse();
+        assertEquals("return 0;", code.print());
+    }
+
+    @Test
+    public void testCompNEq2() {
+        CodeGen code = new CodeGen("return 3!=4; ");
+        code.parse();
+        assertEquals("return 1;", code.print());
+    }
+
+    @Test
+    public void testBug1() {
+        CodeGen code = new CodeGen("int a=arg+1; int !b=a; b=1; return a+2; ");
+        code.parse();
+        assertEquals("return (arg+3);", code.print());
+    }
+
+    @Test
+    public void testBug2() {
+        CodeGen code = new CodeGen("int !a=arg+1; a=a; return a; ");
+        code.parse();
+        assertEquals("return (arg+1);", code.print());
+    }
+
+    @Test
+    public void testBug3() {
+        try { new CodeGen("inta=1; return a;").parse(); fail(); }
+        catch( RuntimeException e ) { assertEquals("Undefined name 'inta'",e.getMessage()); }
+    }
+
+    @Test
+    public void testBug4() {
+        CodeGen code = new CodeGen("return -arg;");
+        code.parse();
+        assertEquals("return (-arg);", code.print());
+    }
+
+    @Test
+    public void testBug5() {
+        CodeGen code = new CodeGen("return arg--2;");
+        code.parse();
+        assertEquals("return (arg--2);", code.print());
+    }
+}