Disabled the GC in the entire VM module and updated config.nim

src/backend/vm.nim

@@ -12,6 +12,17 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 ## The Peon runtime environment
+import ../config
+
+# Sorry, but there only is enough space
+# for one GC in this VM :(
+{.push checks:enableVMChecks.}   # The VM is a critical point where checks are deleterious
+when defined(gcOrc):
+    GC_disableOrc()
+when not defined(gcArc) and not defined(gcOrc):
+    GC_disable()
+    GC_disableMarkAndSweep()
+
 
 import std/math
 import std/segfaults
@@ -20,7 +31,6 @@ import std/sets
 import std/monotimes
 
 
-import ../config
 import ../frontend/meta/bytecode
 import ../util/multibyte
 
@@ -31,8 +41,6 @@ when debugVM or debugMem or debugGC:
     import std/terminal
 
 
-{.push checks:enableVMChecks.}   # The VM is a critical point where checks are deleterious
-
 type
     PeonVM* = ref object
         ## The Peon Virtual Machine.
@@ -1038,13 +1046,6 @@ proc run*(self: PeonVM, chunk: Chunk, breakpoints: seq[uint64] = @[]) =
     self.breakpoints = breakpoints
     self.results = @[]
     self.ip = 0
-    # Sorry, but there only is enough space
-    # for one GC in this VM :(
-    when defined(gcOrc):
-        GC_disableOrc()
-    when not defined(gcArc) and not defined(gcOrc):
-        GC_disable()
-        GC_disableMarkAndSweep()
     try:
         self.dispatch()
     except NilAccessDefect:
@@ -1052,13 +1053,6 @@ proc run*(self: PeonVM, chunk: Chunk, breakpoints: seq[uint64] = @[]) =
         quit(1)
     # We clean up after ourselves!
     self.gc.collect()
-    # This is unnecessary if we use ARC,
-    # but *just in case*
-    when defined(gcOrc):
-        GC_enable_Orc()
-    when not defined(gcArc) and not defined(gcOrc):
-        GC_enable()
-        GC_enableMarkAndSweep()
 
 
 {.pop.}

src/config.nim

@@ -34,7 +34,7 @@ when HeapGrowFactor <= 1:
     {.fatal: "Heap growth factor must be > 1".}
 const PeonVersion* = (major: 0, minor: 1, patch: 0)
 const PeonRelease* = "alpha"
-const PeonCommitHash* = "89477319ecae7dd21b02739688b84e96382ca044"
+const PeonCommitHash* = "c55725911aefab72639b8743b1edf3f365d2e2ac"
 when len(PeonCommitHash) != 40:
     {.fatal: "The git commit hash must be exactly 40 characters long".}
 const PeonBranch* = "master"

src/frontend/compiler.nim

@@ -1291,9 +1291,6 @@ proc declareName(self: Compiler, node: ASTNode, mutable: bool = false): Name =
             var node = ImportStmt(node)
             var name = node.moduleName.token.lexeme.extractFilename().replace(".pn", "")
             declaredName = name
-            for name in self.findByName(name):
-                if name.kind in [NameKind.Var, NameKind.Module] and name.depth == self.scopeDepth:
-                    self.error(&"attempt to redeclare '{name}', which was previously defined in '{name.owner}' at line {name.line}")
             self.names.add(Name(depth: self.scopeDepth,
                             owner: self.currentModule,
                             ident: newIdentExpr(Token(kind: Identifier, lexeme: name, line: node.moduleName.token.line)),