Examples with GstringContext org.apache.groovy.parser.antlr4.GroovyParser.GstringContext used on opensource projects

Example 1 with GstringContext

use of org.apache.groovy.parser.antlr4.GroovyParser.GstringContext in project groovy by apache.

the class AstBuilder method visitGstring.

// } literal ---------------------------------------------------------------
// gstring { ---------------------------------------------------------------
@Override
public GStringExpression visitGstring(final GstringContext ctx) {
    final List<ConstantExpression> stringLiteralList = new LinkedList<>();
    final String begin = ctx.GStringBegin().getText();
    final String beginQuotation = beginQuotation(begin);
    stringLiteralList.add(configureAST(new ConstantExpression(parseGStringBegin(ctx, beginQuotation)), ctx.GStringBegin()));
    List<ConstantExpression> partStrings = ctx.GStringPart().stream().map(e -> configureAST(new ConstantExpression(parseGStringPart(e, beginQuotation)), e)).collect(Collectors.toList());
    stringLiteralList.addAll(partStrings);
    stringLiteralList.add(configureAST(new ConstantExpression(parseGStringEnd(ctx, beginQuotation)), ctx.GStringEnd()));
    List<Expression> values = ctx.gstringValue().stream().map(this::visitGstringValue).collect(Collectors.toList());
    StringBuilder verbatimText = new StringBuilder(ctx.getText().length());
    for (int i = 0, n = stringLiteralList.size(), s = values.size(); i < n; i += 1) {
        verbatimText.append(stringLiteralList.get(i).getValue());
        if (i == s) {
            continue;
        }
        Expression value = values.get(i);
        if (!asBoolean(value)) {
            continue;
        }
        boolean isVariableExpression = value instanceof VariableExpression;
        verbatimText.append(DOLLAR_STR);
        if (!isVariableExpression)
            verbatimText.append('{');
        verbatimText.append(value.getText());
        if (!isVariableExpression)
            verbatimText.append('}');
    }
    return configureAST(new GStringExpression(verbatimText.toString(), stringLiteralList, values), ctx);
}