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-rw-r--r--test/compress/reduce_vars.js124
1 files changed, 122 insertions, 2 deletions
diff --git a/test/compress/reduce_vars.js b/test/compress/reduce_vars.js
index 2301a92a..d9d02efa 100644
--- a/test/compress/reduce_vars.js
+++ b/test/compress/reduce_vars.js
@@ -108,8 +108,6 @@ modified: {
}
console.log(a + b);
console.log(b + c);
- // TODO: as "modified" is determined in "figure_out_scope",
- // even "passes" wouldn't improve this any further
console.log(a + c);
console.log(a + b + c);
}
@@ -350,3 +348,125 @@ unsafe_evaluate_equality: {
}
}
}
+
+passes: {
+ options = {
+ conditionals: true,
+ evaluate: true,
+ passes: 2,
+ reduce_vars: true,
+ unused: true,
+ }
+ input: {
+ function f() {
+ var a = 1, b = 2, c = 3;
+ if (a) {
+ b = c;
+ } else {
+ c = b;
+ }
+ console.log(a + b);
+ console.log(b + c);
+ console.log(a + c);
+ console.log(a + b + c);
+ }
+ }
+ expect: {
+ function f() {
+ var b = 2, c = 3;
+ b = c;
+ console.log(1 + b);
+ console.log(b + 3);
+ console.log(4);
+ console.log(1 + b + 3);
+ }
+ }
+}
+
+iife: {
+ options = {
+ evaluate: true,
+ reduce_vars: true,
+ }
+ input: {
+ !function(a, b, c) {
+ b++;
+ console.log(a - 1, b * 1, c + 2);
+ }(1, 2, 3);
+ }
+ expect: {
+ !function(a, b, c) {
+ b++;
+ console.log(0, 1 * b, 5);
+ }(1, 2, 3);
+ }
+}
+
+iife_new: {
+ options = {
+ evaluate: true,
+ reduce_vars: true,
+ }
+ input: {
+ var A = new function(a, b, c) {
+ b++;
+ console.log(a - 1, b * 1, c + 2);
+ }(1, 2, 3);
+ }
+ expect: {
+ var A = new function(a, b, c) {
+ b++;
+ console.log(0, 1 * b, 5);
+ }(1, 2, 3);
+ }
+}
+
+multi_def: {
+ options = {
+ evaluate: true,
+ reduce_vars: true,
+ }
+ input: {
+ function f(a) {
+ if (a)
+ var b = 1;
+ else
+ var b = 2
+ console.log(b + 1);
+ }
+ }
+ expect: {
+ function f(a) {
+ if (a)
+ var b = 1;
+ else
+ var b = 2
+ console.log(b + 1);
+ }
+ }
+}
+
+multi_def_2: {
+ options = {
+ evaluate: true,
+ reduce_vars: true,
+ }
+ input: {
+ if (code == 16)
+ var bitsLength = 2, bitsOffset = 3, what = len;
+ else if (code == 17)
+ var bitsLength = 3, bitsOffset = 3, what = (len = 0);
+ else if (code == 18)
+ var bitsLength = 7, bitsOffset = 11, what = (len = 0);
+ var repeatLength = this.getBits(bitsLength) + bitsOffset;
+ }
+ expect: {
+ if (16 == code)
+ var bitsLength = 2, bitsOffset = 3, what = len;
+ else if (17 == code)
+ var bitsLength = 3, bitsOffset = 3, what = (len = 0);
+ else if (18 == code)
+ var bitsLength = 7, bitsOffset = 11, what = (len = 0);
+ var repeatLength = this.getBits(bitsLength) + bitsOffset;
+ }
+}