org.antlr.v4.runtime.tree.AbstractParseTreeVisitor Java Examples

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Example #1
Source File: AstTSRendererTest.java    From doov with Apache License 2.0 6 votes vote down vote up 
@Test
void mapping() {
    TypeScriptParser parser = TypeScriptParserFactory.parse(CharStreams.fromString(mapping_stmt));
    assertThat(parser.getNumberOfSyntaxErrors()).isEqualTo(0);
    CallExpressionContext callExpressionContext = parser.callExpression();
    System.out.println(callExpressionContext.getText());
    callExpressionContext.accept(new AbstractParseTreeVisitor<Object>() {
        @Override
        public Object visitChildren(RuleNode node) {
            if (node instanceof CallExpressionContext) {
                CallExpressionContext call = (CallExpressionContext) node;
                System.out.println(call.getText());
                if (call.identifierName() != null) {
                    System.out.println(call.identifierName().getText());
                }
                if (call.memberExpression() != null) {
                    System.out.println(call.memberExpression().getText());
                }
            }
            return super.visitChildren(node);
        }
    });
}