repackaging: all the file moves

modules/@angular/compiler/src/parse_util.ts

@@ -0,0 +1,66 @@
+export class ParseLocation {
+  constructor(public file: ParseSourceFile, public offset: number, public line: number,
+              public col: number) {}
+
+  toString(): string { return `${this.file.url}@${this.line}:${this.col}`; }
+}
+
+export class ParseSourceFile {
+  constructor(public content: string, public url: string) {}
+}
+
+export class ParseSourceSpan {
+  constructor(public start: ParseLocation, public end: ParseLocation) {}
+
+  toString(): string {
+    return this.start.file.content.substring(this.start.offset, this.end.offset);
+  }
+}
+
+export enum ParseErrorLevel {
+  WARNING,
+  FATAL
+}
+
+export abstract class ParseError {
+  constructor(public span: ParseSourceSpan, public msg: string,
+              public level: ParseErrorLevel = ParseErrorLevel.FATAL) {}
+
+  toString(): string {
+    var source = this.span.start.file.content;
+    var ctxStart = this.span.start.offset;
+    if (ctxStart > source.length - 1) {
+      ctxStart = source.length - 1;
+    }
+    var ctxEnd = ctxStart;
+    var ctxLen = 0;
+    var ctxLines = 0;
+
+    while (ctxLen < 100 && ctxStart > 0) {
+      ctxStart--;
+      ctxLen++;
+      if (source[ctxStart] == "\n") {
+        if (++ctxLines == 3) {
+          break;
+        }
+      }
+    }
+
+    ctxLen = 0;
+    ctxLines = 0;
+    while (ctxLen < 100 && ctxEnd < source.length - 1) {
+      ctxEnd++;
+      ctxLen++;
+      if (source[ctxEnd] == "\n") {
+        if (++ctxLines == 3) {
+          break;
+        }
+      }
+    }
+
+    let context = source.substring(ctxStart, this.span.start.offset) + '[ERROR ->]' +
+                  source.substring(this.span.start.offset, ctxEnd + 1);
+
+    return `${this.msg} ("${context}"): ${this.span.start}`;
+  }
+}