print_error: Make location formatting IDE friendly

This is the format used by jest, flow, typescript, and many others.

Replicates graphql/graphql-js@b42f8c8

Author: Cito

graphql/error/print_error.py

@@ -60,7 +60,7 @@ def highlight_source_at_location(source: "Source", location: "SourceLocation") -
     def get_line(index: int) -> Optional[str]:
         return lines[index] if 0 <= index < len_lines else None
 
-    return f"{source.name} ({line_num}:{column_num})\n" + print_prefixed_lines(
+    return f"{source.name}:{line_num}:{column_num}\n" + print_prefixed_lines(
         [
             (f"{line_num - 1}: ", get_line(line_index - 1)),
             (f"{line_num}: ", get_line(line_index)),

tests/error/test_graphql_error.py

@@ -98,7 +98,7 @@ def serializes_to_include_message():
     def serializes_to_include_message_and_locations():
         e = GraphQLError("msg", field_node)
         assert "msg" in str(e)
-        assert "(2:3)" in str(e)
+        assert ":2:3" in str(e)
         assert repr(e) == (
             "GraphQLError('msg', locations=[SourceLocation(line=2, column=3)])"
         )

tests/error/test_print_error.py

@@ -19,7 +19,7 @@ def prints_line_numbers_with_correct_padding():
             """
             Single digit line number with no padding
 
-            Test (9:1)
+            Test:9:1
             9: *
                ^
             """
@@ -36,7 +36,7 @@ def prints_line_numbers_with_correct_padding():
             """
             Left padded first line number
 
-            Test (9:1)
+            Test:9:1
              9: *
                 ^
             10:\x20
@@ -86,13 +86,13 @@ def prints_an_error_with_nodes_from_different_sources():
             """
             Example error with two nodes
 
-            SourceA (2:10)
+            SourceA:2:10
             1: type Foo {
             2:   field: String
                         ^
             3: }
 
-            SourceB (2:10)
+            SourceB:2:10
             1: type Foo {
             2:   field: Int
                         ^

tests/language/test_lexer.py

@@ -65,7 +65,7 @@ def errors_respect_whitespace():
             """
             Syntax Error: Cannot parse the unexpected character '?'.
 
-            GraphQL request (3:5)
+            GraphQL request:3:5
             2:\x20
             3:     ?
                    ^
@@ -82,7 +82,7 @@ def updates_line_numbers_in_error_for_file_context():
             """
             Syntax Error: Cannot parse the unexpected character '?'.
 
-            foo.js (13:6)
+            foo.js:13:6
             12:\x20
             13:      ?
                      ^
@@ -98,7 +98,7 @@ def updates_column_numbers_in_error_for_file_context():
             """
             Syntax Error: Cannot parse the unexpected character '?'.
 
-            foo.js (1:5)
+            foo.js:1:5
             1:     ?
                    ^
             """

tests/language/test_parser.py

@@ -71,7 +71,7 @@ def parse_provides_useful_errors():
             """
             Syntax Error: Expected Name, found <EOF>
 
-            GraphQL request (1:2)
+            GraphQL request:1:2
             1: {
                 ^
             """
@@ -93,7 +93,7 @@ def parse_provides_useful_error_when_using_source():
         error = exc_info.value
         assert str(error) == (
             "Syntax Error: Expected {, found <EOF>\n\n"
-            "MyQuery.graphql (1:6)\n1: query\n        ^\n"
+            "MyQuery.graphql:1:6\n1: query\n        ^\n"
         )
 
     def parses_variable_inline_values():

tests/utilities/test_strip_ignored_characters.py

@@ -133,7 +133,7 @@ def report_document_with_invalid_token():
                 """
                 Syntax Error: Unterminated string.
 
-                GraphQL request (1:13)
+                GraphQL request:1:13
                 1: { foo(arg: "
                                ^
                 2: "