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1
52
53 package freemarker.core;
54
55 import freemarker.template.*;
56
57
62 public abstract class TemplateObject {
63
64 private Template template;
65 int beginColumn, beginLine, endColumn, endLine;
66
67 final void setLocation(Template template, Token begin, Token end)
68 throws
69 ParseException
70 {
71 setLocation(template, begin.beginColumn, begin.beginLine, end.endColumn, end.endLine);
72 }
73
74 final void setLocation(Template template, Token begin, TemplateObject end)
75 throws
76 ParseException
77 {
78 setLocation(template, begin.beginColumn, begin.beginLine, end.endColumn, end.endLine);
79 }
80
81 final void setLocation(Template template, TemplateObject begin, Token end)
82 throws
83 ParseException
84 {
85 setLocation(template, begin.beginColumn, begin.beginLine, end.endColumn, end.endLine);
86 }
87
88 final void setLocation(Template template, TemplateObject begin, TemplateObject end)
89 throws
90 ParseException
91 {
92 setLocation(template, begin.beginColumn, begin.beginLine, end.endColumn, end.endLine);
93 }
94
95 public final int getBeginColumn() {
96 return beginColumn;
97 }
98
99 public final int getBeginLine() {
100 return beginLine;
101 }
102
103 public final int getEndColumn() {
104 return endColumn;
105 }
106
107 public final int getEndLine() {
108 return endLine;
109 }
110
111 void setLocation(Template template, int beginColumn, int beginLine, int endColumn, int endLine)
112 throws
113 ParseException
114 {
115 this.template = template;
116 this.beginColumn = beginColumn;
117 this.beginLine = beginLine;
118 this.endColumn = endColumn;
119 this.endLine = endLine;
120 }
121
122 static void assertNonNull(TemplateModel model, Expression exp, Environment env) throws InvalidReferenceException {
123 if (model == null) {
124 throw new InvalidReferenceException(
125 "Expression " + exp + " is undefined " +
126 exp.getStartLocation() + ".", env);
127 }
128 }
129
130 static TemplateException invalidTypeException(TemplateModel model, Expression exp, Environment env, String  expected)
131 throws
132 TemplateException
133 {
134 assertNonNull(model, exp, env);
135 return new TemplateException(
136 "Expected " + expected + ". " +
137 exp + " evaluated instead to " +
138 model.getClass().getName() + " " +
139 exp.getStartLocation() + ".", env);
140 }
141
145 public String getStartLocation() {
146 String templateName = template != null ? template.getName() : "input";
147 return "on line "
148 + beginLine
149 + ", column "
150 + beginColumn
151 + " in "
152 + templateName;
153 }
154
155 public String getEndLocation() {
156 String templateName = template != null ? template.getName() : "input";
157 return "on line "
158 + endLine
159 + ", column "
160 + endColumn
161 + " in "
162 + templateName;
163 }
164
165 public final String getSource() {
166 if (template != null) {
167 return template.getSource(beginColumn, beginLine, endColumn, endLine);
168 } else {
169 return getCanonicalForm();
170 }
171 }
172
173 public String toString() {
174 return getSource();
175 }
176
177
181 public boolean contains(int column, int line) {
182 if (line < beginLine || line > endLine) {
183 return false;
184 }
185 if (line == beginLine) {
186 if (column < beginColumn) {
187 return false;
188 }
189 }
190 if (line == endLine) {
191 if (column > endColumn) {
192 return false;
193 }
194 }
195 return true;
196 }
197
198 public Template getTemplate()
199 {
200 return template;
201 }
202
203 TemplateObject copyLocationFrom(TemplateObject from)
204 {
205 template = from.template;
206 beginColumn = from.beginColumn;
207 beginLine = from.beginLine;
208 endColumn = from.endColumn;
209 endLine = from.endLine;
210 return this;
211 }
212
213 abstract public String getCanonicalForm();
214 }
215 |
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