Merge pull request #17 from MStoykov/getLastMappingEvenIfColumnIsBigger

Get last mapping if line matches but column is way bigger

Author: vmihailenco

consumer.go

@@ -192,19 +192,24 @@ func (c *Consumer) source(
 		return int(m.genLine) >= genLine
 	})
 
-	// Mapping not found.
+	var match *mapping
+	// Mapping not found
 	if i == len(m.mappings) {
-		return
-	}
-
-	match := &m.mappings[i]
-
-	// Fuzzy match.
-	if int(match.genLine) > genLine || int(match.genColumn) > genColumn {
-		if i == 0 {
+		// lets see if the line is correct but the column is bigger
+		match = &m.mappings[i-1]
+		if int(match.genLine) != genLine {
 			return
 		}
-		match = &m.mappings[i-1]
+	} else {
+		match = &m.mappings[i]
+
+		// Fuzzy match.
+		if int(match.genLine) > genLine || int(match.genColumn) > genColumn {
+			if i == 0 {
+				return
+			}
+			match = &m.mappings[i-1]
+		}
 	}
 
 	if match.sourcesInd >= 0 {

consumer_test.go

@@ -96,6 +96,9 @@ func testSourceMap(t *testing.T, json string) {
 		{2, 21, "/the/root/two.js", "", 2, 3},
 		{2, 28, "/the/root/two.js", "n", 2, 10},
 
+		// line correct, column bigger than last mapping
+		{2, 29, "/the/root/two.js", "n", 2, 10},
+
 		// Fuzzy match.
 		{1, 20, "/the/root/one.js", "bar", 1, 21},
 		{1, 30, "/the/root/one.js", "baz", 2, 10},