tools: remove debug message in Message:to_color_string

[nit.git] / src / mmloader.nit

diff --git a/src/mmloader.nit b/src/mmloader.nit
index 4dfc361..c20657a 100644 (file)
--- a/src/mmloader.nit
+++ b/src/mmloader.nit
@@ -16,7 +16,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# This package is used to load a metamodel 
+# This module is used to load a metamodel
 package mmloader
 
 import metamodel
@@ -24,7 +24,7 @@ import opts
 import location
 
 class Message
-special Comparable
+       super Comparable
        redef type OTHER: Message
 
        readable var _location: nullable Location
@@ -37,7 +37,8 @@ special Comparable
                return location.as(not null) < other.location.as(not null)
        end
 
-       redef fun to_s: String do
+       redef fun to_s: String
+       do
                var l = location
                if l == null then
                        return text
@@ -45,11 +46,54 @@ special Comparable
                        return "{l}: {text}"
                end
        end
+
+       fun to_color_string: String
+       do
+               var esc = 27.ascii
+               var red = "{esc}[0;31m"
+               var bred = "{esc}[1;31m"
+               var green = "{esc}[0;32m"
+               var yellow = "{esc}[0;33m"
+               var def = "{esc}[0m"
+
+               var l = location
+               if l == null then
+                       return text
+               else if l.file == null then
+                       return "{yellow}{l}{def}: {text}"
+               else
+                       var i = location.line_start
+                       var line_start = l.file.line_starts[i-1]
+                       var line_end = line_start
+                       var string = l.file.string
+                       while line_end+1 < string.length and string[line_end+1] != '\n' and string[line_end+1] != '\r' do
+                               line_end += 1
+                       end
+                       var lstart = string.substring(line_start, location.column_start - 1)
+                       var cend
+                       if i != location.line_end then
+                               cend = line_end - line_start + 1
+                       else
+                               cend = location.column_end
+                       end
+                       var lmid = string.substring(line_start + location.column_start - 1, cend - location.column_start + 1)
+                       var lend = string.substring(line_start + cend, line_end - line_start - cend + 1)
+                       var indent = new Buffer
+                       for j in [line_start..line_start+location.column_start-1[ do
+                               if string[j] == '\t' then
+                                       indent.add '\t'
+                               else
+                                       indent.add ' '
+                               end
+                       end
+                       return "{yellow}{l}{def}: {text}\n\t{lstart}{bred}{lmid}{def}{lend}\n\t{indent}^"
+               end
+       end
 end
 
 # Global context for tools
 class ToolContext
-special MMContext
+       super MMContext
        # Number of errors
        readable var _error_count: Int = 0
 
@@ -69,7 +113,11 @@ special MMContext
                        _message_sorter.sort(_messages)
 
                        for m in _messages do
-                               stderr.write("{m}\n")
+                               if opt_no_color.value then
+                                       stderr.write("{m}\n")
+                               else
+                                       stderr.write("{m.to_color_string}\n")
+                               end
                        end
 
                        _messages.clear
@@ -83,6 +131,7 @@ special MMContext
        do
                _messages.add(new Message(l,s))
                _error_count = _error_count + 1
+               if opt_stop_on_first_error.value then check_errors
        end
 
        # Add an error, show errors and quit
@@ -102,6 +151,7 @@ special MMContext
                else
                        _error_count = _error_count + 1
                end
+               if opt_stop_on_first_error.value then check_errors
        end
 
        # Display an info
@@ -148,13 +198,19 @@ special MMContext
        # Option --verbose
        readable var _opt_verbose: OptionCount = new OptionCount("Verbose", "-v", "--verbose")
 
+       # Option --stop-on-first-error
+       readable var _opt_stop_on_first_error: OptionBool = new OptionBool("Stop on first error", "--stop-on-first-error")
+
+       # Option --no-color
+       readable var _opt_no_color: OptionBool = new OptionBool("Do not use color to display errors and warnings", "--no-color")
+
        # Verbose level
        readable var _verbose_level: Int = 0
 
        init
        do
                super
-               option_context.add_option(opt_warn, opt_path, opt_log, opt_log_dir, opt_only_parse, opt_only_metamodel, opt_help, opt_version, opt_verbose)
+               option_context.add_option(opt_warn, opt_stop_on_first_error, opt_no_color, opt_path, opt_log, opt_log_dir, opt_only_parse, opt_only_metamodel, opt_help, opt_version, opt_verbose)
        end
 
        # Parse and process the options given on the command line
@@ -364,7 +420,7 @@ class ModuleLoader
        protected fun parse_file(context: ToolContext, file: IFStream, filename: String, module_name: Symbol, dir: MMDirectory): MODULE is abstract
 
        # Process a parsed module
-       protected fun process_metamodel(context: ToolContext, module: MODULE) is abstract
+       protected fun process_metamodel(context: ToolContext, mod: MODULE) is abstract
 end
 
 redef class MMModule