sksl/shared/CompileTimeConstantVariables.sksl

const int kConstant = 0;
const int kOtherConstant = 1;
const int kAnotherConstant = 2;
const float kFloatConstant = 2.14;
const float kFloatConstantAlias = kFloatConstant;
const half4 kConstVec = half4(1, 0.2, kFloatConstant, 1);

uniform half4 colorGreen;

half4 main(float2) {
    const float kLocalFloatConstant = 1.0 + kFloatConstantAlias;
    const float kLocalFloatConstantAlias = kLocalFloatConstant;
    int integerInput = int(colorGreen.g);

    if (integerInput == kConstant) {
        return half4(kFloatConstant);
    } else if (integerInput == kOtherConstant) {
        return colorGreen;  // the shader is expected to always take this path
    } else if (integerInput == kAnotherConstant) {
        return kConstVec;
    } else if (kLocalFloatConstantAlias < colorGreen.r * kLocalFloatConstant) {
        return half4(kLocalFloatConstantAlias);
    } else if (kFloatConstantAlias >= colorGreen.r * kFloatConstantAlias) {
        return half4(0);
    } else {
        return half4(1, 0, 0, 1);
    }
}