Revision 45153 trunk/org.gvsig.desktop/org.gvsig.desktop.library/org.gvsig.expressionevaluator/org.gvsig.expressionevaluator.lib/org.gvsig.expressionevaluator.lib.impl/src/main/java/org/gvsig/expressionevaluator/impl/DefaultCompiler.java
| DefaultCompiler.java | ||
|---|---|---|
| 46 | 46 |
|
| 47 | 47 |
@Override |
| 48 | 48 |
public void save_state() {
|
| 49 |
this.trace("save_state");
|
|
| 49 | 50 |
((AbstractLexicalAnalyzer)lexer).save_state(); |
| 50 | 51 |
this.states.push(state); |
| 51 | 52 |
} |
| ... | ... | |
| 54 | 55 |
public void restore_state() {
|
| 55 | 56 |
((AbstractLexicalAnalyzer)lexer).restore_state(); |
| 56 | 57 |
state = this.states.pop(); |
| 58 |
this.trace("restore_state");
|
|
| 57 | 59 |
} |
| 58 | 60 |
|
| 59 | 61 |
@Override |
| 60 | 62 |
public void drop_state() {
|
| 61 | 63 |
((AbstractLexicalAnalyzer)lexer).drop_state(); |
| 62 | 64 |
this.states.pop(); |
| 65 |
this.trace("drop_state");
|
|
| 63 | 66 |
} |
| 64 | 67 |
|
| 65 | 68 |
@Override |
| ... | ... | |
| 116 | 119 |
} |
| 117 | 120 |
|
| 118 | 121 |
@Override |
| 119 |
public Code parse_expression() {
|
|
| 120 |
return DefaultCompiler.this.parse_expression(); |
|
| 122 |
public Code parse_expression(boolean allow_assignement) {
|
|
| 123 |
return DefaultCompiler.this.parse_expression(allow_assignement);
|
|
| 121 | 124 |
} |
| 122 | 125 |
|
| 123 | 126 |
@Override |
| ... | ... | |
| 132 | 135 |
|
| 133 | 136 |
@Override |
| 134 | 137 |
public void trace(String msg) {
|
| 135 |
// System.out.println(msg+". "+this.getLexicalAnalyzer().getSourceContext()); |
|
| 138 |
// LexicalAnalyzer lex = this.getLexicalAnalyzer(); |
|
| 139 |
// String s = StringUtils.left(lex.getSource(), lex.getPosition()) + "[*]" + StringUtils.mid(lex.getSource(), lex.getPosition(), 200); |
|
| 140 |
// if( s.length()>200 ) {
|
|
| 141 |
// s = "..."+StringUtils.mid(s, lex.getPosition()-100, 200)+"..."; |
|
| 142 |
// } |
|
| 143 |
// System.out.println(msg+". "+s); |
|
| 136 | 144 |
} |
| 137 | 145 |
} |
| 138 | 146 |
|
| ... | ... | |
| 206 | 214 |
} |
| 207 | 215 |
return code; |
| 208 | 216 |
} |
| 217 |
|
|
| 218 |
public Code parse_expression() {
|
|
| 219 |
return this.parse_expression(true); |
|
| 220 |
} |
|
| 209 | 221 |
|
| 210 |
public Code parse_expression() {
|
|
| 222 |
public Code parse_expression(boolean allow_assignement) {
|
|
| 211 | 223 |
Code code = parse_relational(); |
| 224 |
if( code != null && allow_assignement) {
|
|
| 225 |
Token token = lexer.look(); |
|
| 226 |
if( token.is("AS") ) {
|
|
| 227 |
lexer.next(); |
|
| 228 |
token = lexer.look(); |
|
| 229 |
if( token.getType() != Token.IDENTIFIER ) {
|
|
| 230 |
throw new ExpressionSyntaxException( |
|
| 231 |
I18N.An_identifier_was_expected_and_XliteralX_was_found(token.getLiteral()), |
|
| 232 |
lexer |
|
| 233 |
); |
|
| 234 |
} |
|
| 235 |
token = lexer.next(); |
|
| 236 |
code = codeBuilder.let(token.getLiteral(),code); |
|
| 237 |
} |
|
| 238 |
} |
|
| 212 | 239 |
return code; |
| 213 | 240 |
} |
| 214 | 241 |
|
| ... | ... | |
| 703 | 730 |
StatementContext context = new DefaultStatementContext(); |
| 704 | 731 |
Code code; |
| 705 | 732 |
BaseCodes args = (BaseCodes) this.codeBuilder.args(); |
| 733 |
context.trace("compiler.parse_gramars");
|
|
| 706 | 734 |
Statement stmt = this.grammars.getApplicableStatement(context); |
| 707 | 735 |
while( stmt!=null ) {
|
| 708 | 736 |
code = stmt.parse(context); |
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