add memory limit

dsl/ast.go

@@ -8,6 +8,7 @@ type File struct {
 	BuildWindows string
 	BuildDarwin  string
 	Timeout      time.Duration
+	MemoryLimit  int64  // bytes; 0 means no limit
 	Binary       string // executable name produced by build (default: solution)
 	Sources      string // glob pattern for source files, expanded as $SOURCES in build
 
@@ -18,12 +19,13 @@ type File struct {
 }
 
 type Group struct {
-	Name    string
-	Weight  float64
-	Timeout time.Duration
-	Env     map[string]string
-	Scoring ScoringMode
-	Wrapper string // exec wrapper command (e.g., "valgrind --error-exitcode=1")
+	Name        string
+	Weight      float64
+	Timeout     time.Duration
+	MemoryLimit int64
+	Env         map[string]string
+	Scoring     ScoringMode
+	Wrapper     string // exec wrapper command (e.g., "valgrind --error-exitcode=1")
 
 	Tests   []*Test
 	Pattern *Pattern
@@ -50,10 +52,11 @@ func (p *Pattern) IsDirMode() bool {
 }
 
 type Test struct {
-	Name    string
-	Timeout time.Duration
-	Env     map[string]string
-	Wrapper string
+	Name        string
+	Timeout     time.Duration
+	MemoryLimit int64
+	Env         map[string]string
+	Wrapper     string
 
 	Stdin   *string
 	Args    []string