import (
	"database/sql"
	"database/sql/driver"
	"go/ast"
	"reflect"
)

// Expression expression interface
type Expression interface {
	Build(builder Builder)
}

// NegationExpressionBuilder negation expression builder
type NegationExpressionBuilder interface {
	NegationBuild(builder Builder)
}

// Expr raw expression
type Expr struct {
	SQL                string
	Vars               []interface{}

	column := "column-name"
	results := []struct {
		Expressions  []clause.Expression
		ExpectedVars []interface{}
		Result       string
	}{{
		Expressions: []clause.Expression{
			clause.Eq{Column: column, Value: "column-value"},
		},
		ExpectedVars: []interface{}{"column-value"},
		Result:       "`column-name` = ?",
	}, {
		Expressions: []clause.Expression{
			clause.Eq{Column: column, Value: nil},

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>org.apache.maven.project.tests</groupId>
  <artifactId>build-path-expression</artifactId>
  <version>1</version>
  <build>
    <sourceDirectory>sources</sourceDirectory>
    <resources>
      <resource>
        <directory>${project.build.sourceDirectory}</directory>
      </resource>
    </resources>
  </build>

        // call entry and if so we resolve the constructor callee expression.
        val userType = expression.parent as? KtUserType ?: return expression
        val typeReference = userType.parent as? KtTypeReference ?: return expression
        val constructorCalleeExpression = typeReference.parent as? KtConstructorCalleeExpression ?: return expression

    private fun getExpressionTypeByIfOrBooleanCondition(expression: PsiElement): KtType? = when {
        expression.isWhileLoopCondition() || expression.isIfCondition() -> with(analysisSession) { builtinTypes.BOOLEAN }
        else -> null
    }

    private fun getExpectedTypeByVariableAssignment(expression: PsiElement): KtType? {
        // Given: `x = expression`
        // Expected type of `expression` is type of `x`

    <description> This is the MavenProject instance for the parent of the current POM.
    </description>
  </expression>
  <expression>
    <syntax>project.file</syntax>
    <description> This is the File instance that refers to the location of the current POM on
      disk.
    </description>
  </expression>
  <expression>
    <syntax>project.artifacts</syntax>
    <configuration>
      <![CDATA[
<dependencies>
  ...

            type.isULong -> KtConstantValue.KtUnsignedLongConstantValue((value as Number).toLong().toULong(), expression)
            type.isString -> KtConstantValue.KtStringConstantValue(value.toString(), expression)
            type.isFloat -> KtConstantValue.KtFloatConstantValue((value as Number).toFloat(), expression)
            type.isDouble -> KtConstantValue.KtDoubleConstantValue((value as Number).toDouble(), expression)
            else -> null

        }
    }

    override fun isDefinitelyNull(expression: KtExpression): Boolean {
        val unwrapped = expression.unwrapParenthesesLabelsAndAnnotations() as? KtElement ?: return false
        val bindingContext = analysisContext.analyze(expression, AnalysisMode.PARTIAL)

        if (bindingContext[BindingContext.SMARTCAST_NULL, expression] == true) {
            return true
        }

import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluationException;
import org.codehaus.plexus.component.configurator.expression.TypeAwareExpressionEvaluator;

/**
 * Evaluator for plugin parameters expressions. Content surrounded by <code>${</code> and <code>}</code> is evaluated.
 * Recognized values are:
 * <table border="1">
 * <caption>Expression matrix</caption>

public final class Verify {
  /**
   * Ensures that {@code expression} is {@code true}, throwing a {@code VerifyException} with no
   * message otherwise.
   *
   * @throws VerifyException if {@code expression} is {@code false}
   * @see Preconditions#checkState Preconditions.checkState()
   */
  public static void verify(boolean expression) {
    if (!expression) {
      throw new VerifyException();
    }
  }

  /**