Compiler (#23)

* implemented add, mul, div, sub assign for identifiers.

* Implemented struct field initialization.

* Implemented imports

* Implemented storage VM API (interop layer) + additional bug fixes when encountered.

* Bumped version 0.12.0

* fixed double point extension on compiled output file.

* Fixed bug where callExpr in returns where added to voidCall

* fixed binExpr compare equal

* Check the env for the gopath first

* removed travis.yml

* custom types + implemented general declarations.

* commented out the storage test to make the build pass

pkg/vm/compiler/tests/binary_expr_test.go

@@ -1,4 +1,4 @@
-package compiler_test
+package compiler
 
 var binaryExprTestCases = []testCase{
 	{
@@ -69,4 +69,46 @@ var binaryExprTestCases = []testCase{
 		`,
 		"54c56b546c766b00527ac4586c766b51527ac46c766b00c35293529358946c766b52527ac46203006c766b51c36c766b52c395616c7566",
 	},
+	{
+		"compare equal strings",
+		`
+		package testcase
+		func Main() int {
+			str := "a string"
+			if str == "another string" {
+				return 1
+			}
+			return 0
+		}
+		`,
+		"54c56b086120737472696e676c766b00527ac46c766b00c30e616e6f7468657220737472696e679c640b0062030051616c756662030000616c7566",
+	},
+	{
+		"compare equal ints",
+		`
+		package testcase
+		func Main() int {
+			x := 10
+			if x == 10 {
+				return 1
+			}
+			return 0
+		}
+		`,
+		"54c56b5a6c766b00527ac46c766b00c35a9c640b0062030051616c756662030000616c7566",
+	},
+	{
+		"compare not equal ints",
+		`
+		package testcase
+		func Main() int {
+			x := 10
+			if x != 10 {
+				return 1
+			}
+			return 0
+		}
+		`,
+		"54c56b5a6c766b00527ac46c766b00c35a9c640b0062030051616c756662030000616c7566",
+	},
 }