parser: stop after parsing end psuedo op line (#82)

compile_test88: 47 -> 45 errors

parser.go

@@ -60,6 +60,7 @@ type parser struct {
 	err         error
 	currentLine sourceLine
 	metadata    WarriorData
+	endSeen     bool
 
 	// collected lines
 	lines []sourceLine
@@ -172,6 +173,10 @@ func (p *parser) consumeEmitLine(nextState parseStateFn) parseStateFn {
 // eof: nil
 // anything else: error
 func parseLine(p *parser) parseStateFn {
+	if p.endSeen {
+		return nil
+	}
+
 	p.currentLine = sourceLine{line: p.line}
 
 	switch p.nextToken.typ {
@@ -298,6 +303,10 @@ func parsePseudoOp(p *parser) parseStateFn {
 	p.currentLine.op = p.nextToken.val
 	p.currentLine.typ = linePseudoOp
 
+	if strings.ToLower(p.nextToken.val) == "end" {
+		p.endSeen = true
+	}
+
 	lastToken := p.nextToken
 	p.next()
 

parser_test.go

@@ -193,6 +193,7 @@ func TestParserNoError(t *testing.T) {
 		"dat 0\n",
 		"label: label2: dat 0",
 		"label: : dat 0",
+		"end\n\n--",
 	}
 
 	for _, val := range testCases {