esliveness - npm Package Compare versions

Comparing version 0.0.1 to 0.0.2

package.json

 {
   "name": "esliveness",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "Liveness analysis for JavaScript based on Mozilla's Parser API AST.",
@@ -12,2 +12,15 @@ "main": "liveness.js",
   },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/Pfarrer/esliveness.git"
+  },
+  "keywords": [
+    "javascript",
+    "ecmascript",
+    "static analysis",
+    "liveness",
+    "variable",
+    "Parser API",
+    "Mozilla"
+  ],
   "author": "Brian Pfretzschner",
@@ -14,0 +27,0 @@ "license": "MIT",

test/expected/02-branches-01.js

@@ -1,8 +0,8 @@
-// Liveness: 
+// Liveness: write
 // - Kill: a, c
 var a = 1, b, c = true;
-if (// Liveness: a, c
+if (// Liveness: a, c, write
 	// - Gen: a
 	a != 0) {
-	// Liveness: a, c
+	// Liveness: a, c, write
 	// - Gen: a
@@ -12,11 +12,11 @@ // - Kill: b
 } else {
-	// Liveness: 
+	// Liveness: write
 	// - Kill: b
 	b = 0;
-	// Liveness: b
+	// Liveness: b, write
 	// - Kill: c
 	c = false;
 }
-// Liveness: b, c
-// - Gen: b, c
-console.log(b, c);
+// Liveness: b, c, write
+// - Gen: b, c, write
+write(b, c);

test/expected/02-branches-02.js

@@ -1,15 +0,15 @@
-// Liveness: 
+// Liveness: write
 // - Kill: a, c
 var a = 1, b, c = true;
-if (// Liveness: a, c
+if (// Liveness: a, c, write
 	// - Gen: a
 	a == 0) {
-	// Liveness: 
+	// Liveness: write
 	// - Kill: b
 	b = 0;
-	// Liveness: b
+	// Liveness: b, write
 	// - Kill: c
 	c = false;
 } else {
-	// Liveness: a, c
+	// Liveness: a, c, write
 	// - Gen: a
@@ -19,4 +19,4 @@ // - Kill: b
 }
-// Liveness: b, c
-// - Gen: b, c
-console.log(b, c);
+// Liveness: b, c, write
+// - Gen: b, c, write
+write(b, c);

test/expected/03-loops-04.js

@@ -0,5 +1,19 @@
+// Liveness: write
+// - Kill: res
 var res = 0;
-for (var i=0; i<10; i++) {
+for (// Liveness: res, write
+	// - Kill: i
+	var i = 0; // Liveness: i, res, write
+	// - Gen: i
+	i < 10; // Liveness: i, res, write
+	// - Gen: i
+	// - Kill: i
+	i++) {
+	// Liveness: i, write
+	// - Gen: i
+	// - Kill: res
 	res += i;
 }
+// Liveness: res, write
+// - Gen: res, write
 write(res);

test/expected/04-functions-01.js

@@ -1,15 +0,7 @@
-var gcd = function (a, b) {
-	var c = a;
-	var d = b;
-	if (c == 0) {
-		return d;
-	}
-	while (d != 0) {
-		if (c > d)
-			c = c - d;
-		else
-			d = d - c;
-	}
-	return c;
-};
-gcd(18, 7);
+function fib(n) {
+	if (n <= 2)
+		return 1;
+	else
+		return fib(n - 2) + fib(n - 1);
+}
+console.log(fib(10));

test/expected/04-functions-03.js

@@ -1,58 +0,18 @@
-// Liveness: global, this
-// - Gen: global, this
-function (__global) {
-	// Liveness: __global
-	var tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp8, tmp9;
-	// Liveness: __global
-	// - Kill: tmp9
-	tmp9 = function (n) {
-		var tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16, tmp17, tmp18, tmp19, tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26;
-		tmp11 = n;
-		tmp12 = 2;
-		tmp10 = tmp11 <= tmp12;
-		if (tmp10) {
-			tmp13 = 1;
-			return tmp13;
-		} else {
-			tmp18 = 'fib';
-			tmp17 = __global[tmp18];
-			tmp20 = n;
-			tmp21 = 2;
-			tmp19 = tmp20 - tmp21;
-			tmp15 = tmp17(tmp19);
-			tmp23 = 'fib';
-			tmp22 = __global[tmp23];
-			tmp25 = n;
-			tmp26 = 1;
-			tmp24 = tmp25 - tmp26;
-			tmp16 = tmp22(tmp24);
-			tmp14 = tmp15 + tmp16;
-			return tmp14;
+// TODO
+function foo(a) {
+	var x = a;
+	function bar() {
+		var y = x + 5;
+		function baz() {
+			x = y + 1;
 		}
-	};
-	tmp8 = 'fib';
-	__global[tmp8] = tmp9;
-	tmp2 = 'console';
-	tmp0 = __global[tmp2];
-	// Liveness: __global, tmp0
-	// - Kill: tmp1
-	tmp1 = 'log';
-	// Liveness: __global, tmp0, tmp1
-	// - Kill: tmp5
-	tmp5 = 'fib';
-	// Liveness: __global, tmp0, tmp1, tmp5
-	// - Gen: __global, tmp5
-	// - Kill: tmp4
-	tmp4 = __global[tmp5];
-	// Liveness: tmp0, tmp1, tmp4
-	// - Kill: tmp6
-	tmp6 = 10;
-	// Liveness: tmp0, tmp1, tmp4, tmp6
-	// - Gen: tmp4, tmp6
-	// - Kill: tmp3
-	tmp3 = tmp4(tmp6);
-	// Liveness: tmp0, tmp1, tmp3
-	// - Gen: tmp0, tmp1, tmp3
-	// - Kill: tmp7
-	tmp7 = tmp0[tmp1](tmp3);
-}(typeof global === 'undefined' ? this : global);
+		baz();
+		return x;
+	}
+	var t = bar();
+	return x + t;
+}
+// Liveness: foo
+// - Gen: foo
+// - Kill: z
+var z = foo(3);

test/input/02-branches-01.js

@@ -8,2 +8,2 @@ var a = 1, b, c = true;
 }
-console.log(b, c);
+write(b, c);

test/input/02-branches-02.js

@@ -8,2 +8,2 @@ var a = 1, b, c = true;
 }
-console.log(b, c);
+write(b, c);

test/input/03-loops-01.js

@@ -1,15 +0,6 @@
-// Liveness: 
 var x = 0, y = 0;
-// Liveness: x, y
 var z = false;
-// Liveness: x, y, z
-// - Gen: y
 while (y < 10) {
-	// Liveness: x, y, z
-	// - Gen: x
-	// - Kill: x
 	x++;
 }
-// Liveness: z
-// - Kill: z
 z = true;

test/input/04-functions-01.js

@@ -1,15 +0,7 @@
-var gcd = function (a, b) {
-	var c = a;
-	var d = b;
-	if (c == 0) {
-		return d;
-	}
-	while (d != 0) {
-		if (c > d)
-			c = c - d;
-		else
-			d = d - c;
-	}
-	return c;
-};
-gcd(18, 7);
+function fib(n) {
+	if (n <= 2)
+		return 1;
+	else
+		return fib(n - 2) + fib(n - 1);
+}
+console.log(fib(10));

test/input/04-functions-02.js

@@ -1,5 +0,9 @@
-function fib(n) {
-	if (n <= 2) return 1;
-	else return fib(n-2) + fib(n-1);
-}
-console.log(fib(10));
+(function (__global) {
+	var val, id;
+	id = function (n) {
+		return n;
+	};
+	val = 'string';
+	var ret = id(val);
+	return ret;
+}(typeof global === 'undefined' ? this : global));

test/input/04-functions-03.js

@@ -1,38 +0,15 @@
-(function (__global) {
-	var tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp8, tmp9;
-	tmp9 = function (n) {
-		var tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16, tmp17, tmp18, tmp19, tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26;
-		tmp11 = n;
-		tmp12 = 2;
-		tmp10 = tmp11 <= tmp12;
-		if (tmp10) {
-			tmp13 = 1;
-			return tmp13;
-		} else {
-			tmp18 = 'fib';
-			tmp17 = __global[tmp18];
-			tmp20 = n;
-			tmp21 = 2;
-			tmp19 = tmp20 - tmp21;
-			tmp15 = tmp17(tmp19);
-			tmp23 = 'fib';
-			tmp22 = __global[tmp23];
-			tmp25 = n;
-			tmp26 = 1;
-			tmp24 = tmp25 - tmp26;
-			tmp16 = tmp22(tmp24);
-			tmp14 = tmp15 + tmp16;
-			return tmp14;
+// Lexical scoping
+function foo(a) {
+	var x = a;
+	function bar() {
+		var y = x + 5;
+		function baz() {
+			x = y + 1;
 		}
-	};
-	tmp8 = 'fib';
-	__global[tmp8] = tmp9;
-	tmp2 = 'console';
-	tmp0 = __global[tmp2];
-	tmp1 = 'log';
-	tmp5 = 'fib';
-	tmp4 = __global[tmp5];
-	tmp6 = 10;
-	tmp3 = tmp4(tmp6);
-	tmp7 = tmp0[tmp1](tmp3);
-}(typeof global === 'undefined' ? this : global));
+		baz();
+		return x;
+	}
+	var t = bar();
+	return x + t;
+}
+var z = foo(3);

Fixed alerts

No repository

Supply chain risk

Package does not have a linked source code repository. Without this field, a package will have no reference to the location of the source code use to generate the package.

Found 1 instance in 1 package

Improved metrics

Number of low supply chain risk alerts

5

decreased by-16.67%

Worsened metrics

Total package byte prevSize

13787

decreased by-10.57%

Number of package files

34

decreased by-2.86%

Lines of code

495

decreased by-15.09%

No dependency changes