public ExprRegexpNodeForgeNonconstEval(
ExprRegexpNodeForgeNonconst forge,
ExprEvaluator lhsEval,
ExprEvaluator patternEval)
{
this.forge = forge;
this.lhsEval = lhsEval;
this.patternEval = patternEval;
}
public static CodegenMethod Codegen(
ExprRegexpNodeForgeNonconst forge,
ExprNode lhs,
ExprNode pattern,
CodegenMethodScope codegenMethodScope,
ExprForgeCodegenSymbol exprSymbol,
CodegenClassScope codegenClassScope)
{
var methodNode = codegenMethodScope.MakeChild(
typeof(bool?),
typeof(ExprRegexpNodeForgeNonconstEval),
codegenClassScope);
var blockMethod = methodNode.Block
.DeclareVar<string>(
"patternText",
pattern.Forge.EvaluateCodegen(typeof(string), methodNode, exprSymbol, codegenClassScope))
.IfRefNullReturnNull("patternText");
// initial like-setup
blockMethod.DeclareVar<Regex>(
"pattern",
StaticMethod(
typeof(ExprRegexpNodeForgeNonconstEval),
"ExprRegexNodeCompilePattern",
Ref("patternText")));
if (!forge.IsNumericValue) {
blockMethod.DeclareVar<string>(
"value",
lhs.Forge.EvaluateCodegen(typeof(string), methodNode, exprSymbol, codegenClassScope))
.IfRefNullReturnNull("value")
.MethodReturn(GetRegexpCode(forge, Ref("pattern"), Ref("value")));
}
else {
blockMethod.DeclareVar<object>(
"value",
lhs.Forge.EvaluateCodegen(typeof(object), methodNode, exprSymbol, codegenClassScope))
.IfRefNullReturnNull("value")
.MethodReturn(GetRegexpCode(forge, Ref("pattern"), ExprDotMethod(Ref("value"), "ToString")));
}
return methodNode;
}