From fcce1e13814a02d8358eae9a40e33a7e6f2b5400 Mon Sep 17 00:00:00 2001
From: Cliff Click <cliffc@acm.org>
Date: Fri, 13 Jun 2025 15:42:08 -0700
Subject: Unifying Structs and Arrays

---
 .../java/com/seaofnodes/simple/Chapter15Test.java  | 358 ---------------------
 1 file changed, 358 deletions(-)
 delete mode 100644 src/test/java/com/seaofnodes/simple/Chapter15Test.java

(limited to 'src/test/java/com/seaofnodes/simple/Chapter15Test.java')

diff --git a/src/test/java/com/seaofnodes/simple/Chapter15Test.java b/src/test/java/com/seaofnodes/simple/Chapter15Test.java
deleted file mode 100644
index 6ba4e2b1..00000000
--- a/src/test/java/com/seaofnodes/simple/Chapter15Test.java
+++ /dev/null
@@ -1,358 +0,0 @@
-package com.seaofnodes.simple;
-
-import com.seaofnodes.simple.codegen.CodeGen;
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import org.junit.Test;
-import org.junit.Ignore;
-import static org.junit.Assert.*;
-
-public class Chapter15Test {
-
-    @Test
-    public void testJig() {
-        CodeGen code = new CodeGen(
-"""
-return 3.14;
-""");
-        code.parse().opto();
-        assertEquals("return 3.14;", code.print());
-        assertEquals("3.14", Eval2.eval(code,  0));
-    }
-
-    @Test
-    public void testCyclic() {
-        CodeGen code = new CodeGen(
-"""
-struct C { C? l; };
-C !c = new C;
-c.l = c;
-return c;
-""");
-        code.parse().opto();
-        assertEquals("return C;", code.print());
-        assertEquals("C{l=$cyclic}", Eval2.eval(code,  0));
-    }
-
-    @Test
-    public void testSafetyCheck() {
-        CodeGen code = new CodeGen(
-"""
-u8[] old = new u8[0];
-u8[] !output = new u8[1];
-int i = 0;
-while (i < old#) {
-    output[i] = old[i];
-    i = i + 1;
-}
-output[i] = 1;
-return output;
-""");
-        code.parse().opto();
-        assertEquals("return []u8;", code.print());
-        assertEquals("\u0001", Eval2.eval(code,  0));
-    }
-
-    @Test
-    public void testBasic1() {
-        CodeGen code = new CodeGen(
-"""
-int[] is = new int[2];
-return is[1];
-""");
-        code.parse().opto();
-        assertEquals("return 0;", code.print());
-        assertEquals("0", Eval2.eval(code,  0));
-    }
-
-    @Test
-    public void testBasic2() {
-        CodeGen code = new CodeGen(
-"""
-int[] is = new int[2];
-int[] is2 = new int[2];
-return is[1];
-""");
-        code.parse().opto();
-        assertEquals("return 0;", code.print());
-        assertEquals("0", Eval2.eval(code,  0));
-    }
-
-    @Test
-    public void testBasic3() {
-        CodeGen code = new CodeGen(
-"""
-int[] !a = new int[2];
-a[0] = 1;
-a[1] = 2;
-return a[0];
-""");
-        code.parse().opto();
-        assertEquals("return 1;", code.print());
-        assertEquals("1", Eval2.eval(code,  0));
-    }
-
-    @Test
-    public void testBasic4() {
-        CodeGen code = new CodeGen(
-"""
-struct A { int i; };
-A?[] !a = new A?[2];
-return a;
-""");
-        code.parse().opto();
-        assertEquals("return []*A?;", code.print());
-        assertEquals("*A {i64 !i; }?[ null,null]", Eval2.eval(code, 0));
-    }
-
-    @Test
-    public void testBasic5() {
-        CodeGen code = new CodeGen(
-"""
-struct S { int x; flt y; };
-// A new S
-S !s = new S; s.x=99; s.y = 3.14;
-
-// Double-d array of Ss.  Fill in one row.
-S?[]?[] !iss = new S?[]?[2];
-iss[0] = new S?[7];
-iss[0][2] = s;
-
-// Now pull out the filled-in value, with null checks
-flt rez;
-S?[]? is = iss[arg];
-if( !is ) rez = 1.2;
-else {
-    S? i = is[2];
-    if( !i ) rez = 2.3;
-    else rez = i.y;
-}
-return rez;
-""");
-        code.parse().opto();
-        assertEquals("return Phi(Region,1.2,.y,2.3);", code.print());
-        assertEquals("3.14", Eval2.eval(code, 0));
-        assertEquals("1.2", Eval2.eval(code, 1));
-    }
-
-    @Test
-    public void testBasic6() {
-        CodeGen code = new CodeGen(
-"""
-struct S { int x; flt y; };
-// A new S
-S !s = new S; s.x=99; s.y = 3.14;
-
-// Double-d array of Ss.  Fill in one row.
-S?[]?[] !iss = new S?[]?[2];
-iss[0] = new S?[7];
-iss[0][2] = s;
-
-// Now pull out the filled-in value, with null checks
-flt rez = 1.2;
-if( iss[arg] )
-    if( iss[arg][2] )
-        rez = iss[arg][2].y;
-return rez;""");
-        code.parse().opto().typeCheck();
-        assertEquals("return Phi(Region,1.2,1.2,.y);", code.print());
-        assertEquals("3.14", Eval2.eval(code,  0));
-        try { Eval2.eval(code, 10); fail(); } // Fails AIOOBE in Eval2, no range checks
-        catch( Exception e ) { assertEquals("Index 10 out of bounds for length 2",e.getMessage()); }
-    }
-
-    @Test
-    public void testTree() {
-        CodeGen code = new CodeGen(
-"""
-// Can we define a forward-reference array?
-struct Tree { Tree?[]? _kids; };
-Tree !root = new Tree;
-root._kids = new Tree?[2]; // NO BANG SO ARRAY IS OF IMMUTABLE TREES????
-root._kids[0] = new Tree;
-return root;
-""");
-        code.parse().opto();
-        assertEquals("return Tree;", code.print());
-        assertEquals("Tree{_kids=*Tree {*[]*Tree?? !_kids; }?[ Tree{_kids=null},null]}", Eval2.eval(code,  0));
-    }
-
-    @Test
-    public void testNestedStructAddMemProj() {
-        CodeGen code = new CodeGen(
-"""
-struct S { int a; int[] b; };
-return 0;
-""");
-        code.parse().opto();
-        assertEquals("return 0;", code.print());
-    }
-
-    @Test
-    public void testRollingSum() {
-        CodeGen code = new CodeGen(
-"""
-int[] !ary = new int[arg];
-// Fill [0,1,2,3,4,...]
-int i=0;
-while( i < ary# ) {
-    ary[i] = i;
-    i = i+1;
-}
-// Fill [0,1,3,6,10,...]
-i=0;
-while( i < ary# - 1 ) {
-    ary[i+1] = ary[i+1] + ary[i];
-    i = i+1;
-}
-return ary[1] * 1000 + ary[3]; // 1 * 1000 + 6
-""");
-        code.parse().opto();
-        assertEquals("return (.[]+(.[]*1000));", code.print());
-        assertEquals("1006", Eval2.eval(code,  4));
-    }
-
-    @Test @Ignore
-    public void sieveOEratosthenes() throws IOException {
-        String src = Files.readString(Path.of("src/test/java/com/seaofnodes/simple/progs/sieve.smp"));
-        CodeGen code = new CodeGen(src+"return sieve(arg);");
-        code.parse().opto();
-        assertEquals("return []u32;", code.print());
-        assertEquals("u32[ 2,3,5,7,11,13,17,19]",Eval2.eval(code, 20));
-    }
-
-    @Test
-    public void testNewNodeInit() {
-        CodeGen code = new CodeGen(
-"""
-struct S {int i; flt f;};
-S !s1 = new S;
-S !s2 = new S;
-s2.i = 3;
-s2.f = 2.0;
-if (arg) s1 = new S;
-return s1.i + s1.f;
-""");
-        code.parse().opto();
-        assertEquals("return ((flt).i+.f);", code.print());
-        assertEquals("0.0", Eval2.eval(code,  0));
-    }
-
-
-    @Test
-    public void testBad0() {
-        CodeGen code = new CodeGen(
-"""
-return new flt;
-""");
-        try { code.parse().opto(); fail(); }
-        catch( Exception e ) { assertEquals("Cannot allocate a flt",e.getMessage()); }
-    }
-
-    @Test
-    public void testBad1() {
-        CodeGen code = new CodeGen(
-"""
-flt is = new int[2];
-return is;
-""");
-        try { code.parse().opto().typeCheck(); fail(); }
-        catch( Exception e ) { assertEquals("Type *[]i64 is not of declared type flt",e.getMessage()); }
-    }
-
-    @Test
-    public void testBad2() {
-        CodeGen code = new CodeGen(
-"""
-int[] is = new int[3.14];
-return is[1];
-""");
-        try { code.parse().opto(); fail(); }
-        catch( Exception e ) { assertEquals("Cannot allocate an array with length 3.14",e.getMessage()); }
-    }
-
-    @Test
-    public void testBad3() {
-        CodeGen code = new CodeGen("""
-int[] is = new int[arg];
-return is[1];
-""");
-        code.parse().opto();
-        assertEquals("return 0;", code.print());
-        assertEquals("0", Eval2.eval(code,  4));
-        try { Eval2.eval(code,-1); fail(); }
-        catch( NegativeArraySizeException e ) { assertEquals("-1",e.getMessage()); }
-        // This test will not pass (i.e., failed range-check) until we have range checks.
-        // Without the range check, the load `is[1]` optimizes against the `new int[]`
-        // and assumes it loads a zero then folds away, and the Eval2 never sees an OOB load.
-        //try { Eval2.eval(code,0); fail(); }
-        //catch( ArrayIndexOutOfBoundsException e ) { assertEquals("Array index 1 out of bounds for array length 0",e.getMessage()); }
-    }
-
-    @Test
-    public void testProgress() {
-        CodeGen code = new CodeGen("""
-i8 v1=0&0;
-u8 v2=0;
-byte v4=0;
-if(0) {}
-while(v2<0) {
-    v4=0-v1;
-    break;
-}
-int v5=0&0;
-while(v5+(0&0)) {
-    int v7=0&0;
-    while(v7)
-        v4=0>>>v5;
-    while(v1)
-        return 0;
-}
-return v1;
-""");
-        code.parse().opto();
-        assertEquals("return 0;", code.print());
-        assertEquals("0", Eval2.eval(code,  0));
-    }
-
-    @Test
-    public void testSharpNot() {
-        CodeGen code = new CodeGen(
-"""
-if(0>>0) {}
-while(0) {}
-u32 v7=0;
-int v8=0;
-while(0<--1>>>---(v7*0==v8)) {}
-return 0;
-""");
-        code.parse().opto();
-        assertEquals("return 0;", code.print());
-    }
-
-
-    @Test
-    public void testProgress2() {
-        CodeGen code = new CodeGen(
-"""
-if(1) {}
-else {
-        while(arg>>>0&0>>>0) {}
-    byte v3=0>>>0;
-                while(0) {}
-        int v7=0>>>0;
-        while(v7<0>>>0) {
-                    while(0+v7<=0) if(1) arg=-12;
-            if(arg) {
-                v3=arg+v3+0;
-                arg=0;
-            }
-        }
-}
-return 0;
-""");
-        code.parse().opto();
-        assertEquals("return 0;", code.print());
-    }
-}
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