compiler: add support for import/export statements

This commit introduces syntax level support for ES6 style module import
and export statements. Imports are resolved at compile time and the
corresponding module code is compiled into the main program.

Also add testcases to cover import and export statement semantics.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 0 insertions, 59 deletions

diff --git a/tests/custom/04_bugs/22_compiler_break_continue_scoping b/tests/custom/04_bugs/22_compiler_break_continue_scoping
deleted file mode 100644
index 461b144..0000000
--- a/tests/custom/04_bugs/22_compiler_break_continue_scoping
+++ /dev/null
@@ -1,59 +0,0 @@
-When compiling a break or continue statement, the compiler emitted pop
-instructions for local variables within the scope the break or continue
-keyword appeared in, but it must also pop local variables in enclosing
-scopes up until the scope of the containing loop or switch body.
-
--- Expect stdout --
-1
-2
-3
--- End --
-
--- Testcase --
-{%
-	for (let i = 1; i <= 3; i++) {
-		while (true) {
-			let n = i;
-
-			print(n, "\n");
-
-			{
-				// The `let n` stack slot is not popped since it is
-				// outside of break's scope...
-				break;
-			}
-		}
-	}
-%}
--- End --
-
--- Expect stdout --
-1
-2
-3
-2
-4
-6
-3
-6
-9
--- End --
-
--- Testcase --
-{%
-	for (let i = 1; i <= 3; i++) {
-		for (let j = 1; j <= 3; j++) {
-			let n = i * j;
-
-			print(n, "\n");
-
-			if (j == 1)
-			{
-				// The `let n` stack slot is not popped since it is
-				// outside of continue's scope...
-				continue;
-			}
-		}
-	}
-%}
--- End --